F16H

GEARING

Combinations including mechanical gearings are classified in groups F16H37/00 or F16H47/00, unless they are provided for in groups F16H1/00 - F16H35/00.

In this subclass, sets of rigidly-connected members are regarded as single members.

In this subclass, the following terms or expressions are used with the meanings indicated:

"toothed gearing" includes worm gearing and other gearing involving at least one wheel or sector provided with teeth or the equivalent, EXCEPT gearing with chains or toothed belts, which is treated as friction gearing;

"conveying motion" includes transmitting energy, and means that the applied and resultant motions are of the same kind, though they may differ in, e.g. speed, direction extent:

"rotary" implies that the motion may continue indefinitely;

"oscillating" means moving about an axis to an extent which is limited by the construction of the gearing, and which may exceed one revolution, the movement being alternately forwards and backwards during continued operation of the gearing;

"reciprocating" means moving substantially in a straight line, the movement being alternately forwards and backwards during continued operation of the gearing;

"reversing" or "reversal" means that an applied movement in one direction may produce a resultant movement in either of two opposed directions at will;

"central gears" includes any gears whose axis is the main axis of the gearing.

Attention is drawn to the following places:

A01D69/06

Gearings in harvesting machines

A63H31/00

Gearing for toys

B21B35/12

Toothed-wheel gearing for metal-rolling mills

B60K

Arrangement of transmissions in vehicles

B61C9/00

Transmissions for railway locomotives

B62D3/00

Vehicle steering gears

B62M

Transmissions for cycles

B63H23/00

Transmissions for marine propulsions

B63H25/00

Marine steering gears

B64C27/12, B64C27/58

Transmissions for helicopters

B64D35/00

Transmissions for aircraft

F01-F04Machines, engines, pumps

F15B15/00

Gearings associated with fluid-actuated devices

G01D5/04

Gearing used in indicating or recording apparatus in connection with measuring devices

H03J1/00

Driving arrangements for tuning resonant circuits

H04L13/04

Driving mechanisms for apparatus for transmission of coded digital information.

In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.

F16H1/00

Toothed gearings for conveying rotary motion

F16H1/00

Toothed gearings for conveying rotary motion specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F16H3/00

F16H1/003

Monodirectionally torque-transmitting toothed gearing

F16H1/006

the driving and driven axes being designed to assume variable positions relative to one another during operation

F16H1/02

without gears having orbital motion

F16H1/04

involving only two intermeshing members

F16H1/06

with parallel axes

F16H1/08

the members having helical, herringbone, or like teeth

F16H1/10

one of the members being internally toothed

F16H1/12

with non-parallel axes

F16H1/125

comprising spiral gears

F16H1/14

comprising conical gears only

F16H1/145

with offset axes, e.g. hypoïd gearings

F16H1/16

comprising worm and worm-wheel

F16H1/163

with balls between the co-operating parts

F16H1/166

with members rotating around axes on the worm or worm-wheel

F16H1/18

the members having helical, herringbone, or like teeth F16H1/14 takes precedence

F16H1/20

involving more than two intermeshing members

F16H1/203

with non-parallel axes F16H1/22 takes precedence

F16H1/206

characterised by the driving or driven member being composed of two or more gear wheels

F16H1/22

with a plurality of driving or driven shafts

with arrangements for dividing torque between two or more intermediate shafts

F16H1/222

with non-parallel axes

F16H1/225

with two or more worm and worm-wheel gearings

F16H1/227

comprising two or more gearwheels in mesh with the same internally toothed wheel

F16H1/24

involving gears essentially having intermeshing elements other than involute or cycloidal teeth F16H1/16 takes precedence

F16H1/26

Special means compensating for misalignment of axes

F16H1/28

with gears having orbital motion

F16H1/2809

with means for equalising the distribution of load on the planet-wheels

F16H1/2818

by allowing limited movement of the ring gear relative to the casing or shaft

F16H1/2827

by allowing limited movement of the planet carrier, e.g. relative to its shaft

F16H1/2836

by allowing limited movement of the planets relative to the planet carrier or by using free floating planets

F16H1/2845

by allowing limited movement of the sun gear

F16H1/2854

involving conical gears

F16H1/2863

Arrangements for adjusting or for taking-up backlash

F16H2001/2872

comprising three central gears, i.e. ring or sun gear, engaged by at least one common orbital gear mounted on an idling carrier

F16H2001/2881

comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output

F16H2001/289

comprising two or more coaxial and identical sets of orbital gears, e.g. for distributing torque between the coaxial sets

F16H1/30

in which an orbital gear has an axis crossing the main axes of the gearing and has helical teeth or is a worm

F16H1/32

in which the central axis of the gearing lies inside the periphery of an orbital gear

F16H1/321

the orbital gear being nutating

F16H2001/322

comprising at least one universal joint, e.g. a Cardan joint

F16H2001/323

comprising eccentric crankshafts driving or driven by a gearing

F16H2001/324

comprising two axially spaced, rigidly interconnected, orbital gears

F16H2001/325

comprising a carrier with pins guiding at least one orbital gear with circular holes

F16H2001/326

comprising a carrier with linear guiding means guiding at least one orbital gear

F16H2001/327

with orbital gear sets comprising an internally toothed ring gear

F16H2001/328

comprising balancing means

F16H1/34

involving gears essentially having intermeshing elements other than involute or cycloidal teeth in worm gearing F16H1/30

F16H1/36

with two central gears coupled by intermeshing orbital gears

F16H1/46

Systems consisting of a plurality of gear trains each with orbital gears,

i.e. systems having three or more central gears

F16H1/48

Special means compensating for misalignment of axes

, e.g. for equalising distribution of load on the face width of the teeth in combination with distribution of load on the planet-wheels F16H1/2809

F16H3/00

Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion speed-changing or reversing mechanisms F16H59/00 - F16H63/00

F16H3/001

convertible for varying the gear-ratio, e.g. for selecting one of several shafts as the input shaft

F16H3/002

using gears having teeth movable out of mesh F16H3/42 takes precedence

F16H3/003

the gear-ratio being changed by inversion of torque direction

F16H3/005

for gearings using gears having orbital motion

F16H3/006

power being selectively transmitted by either one of the parallel flow paths

F16H2003/007

with two flow paths, one being directly connected to the input, the other being connected to the input though a clutch

F16H2003/008

comprising means for selectively driving countershafts

F16H3/02

without gears having orbital motion

F16H3/04

with internally-toothed gears

F16H3/06

with worm and worm-wheel or gears essentially having helical or herring-bone teeth

F16H3/08

exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts

In this group, gears which can be put out of mesh are not taken into consideration if they are used for reversal only.

F16H2003/0803

with countershafts coaxial with input or output shaft

F16H2003/0807

with gear ratios in which the power is transferred by axially coupling idle gears

F16H2003/0811

using unsynchronised clutches

F16H2003/0815

using torque sharing, i.e. engaging two gear ratios simultaneously to transfer large torque, e.g. using one slipping clutch

F16H2003/0818

comprising means for power-shifting

F16H2003/0822

characterised by the arrangement of at least one reverse gear

F16H2003/0826

wherein at least one gear on the input shaft, or on a countershaft is used for two different forward gear ratios

F16H3/083

with radially acting and axially controlled clutching members, e.g. sliding keys

clutches with clutching members movable otherwise than only axially F16D11/12; clutches with wedgeable clutching members F16D15/00; systems of mechanically actuated clutches F16D21/04

F16H3/085

with more than one output shaft

F16H3/087

characterised by the disposition of the gears F16H3/083, F16H3/085 take precedence

When counting the countershafts, the reverse countershaft is not taken into consideration if it is used for reversal only.

F16H3/089

all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved

F16H3/091

including a single countershaft

F16H3/0915

with coaxial input and output shafts

F16H3/093

with two or more countershafts

F16H2003/0931

each countershaft having an output gear meshing with a single common gear on the output shaft

F16H2003/0933

with coaxial countershafts

F16H2003/0935

with multiple countershafts comprising only one idle gear and one gear fixed to the countershaft

F16H2003/0936

with multiple countershafts comprising only two idle gears and one gear fixed to the countershaft

F16H2003/0938

with multiple gears on the input shaft directly meshing with respective gears on the output shaft

F16H3/095

with means for ensuring an even distribution of torque between the countershafts

F16H3/097

the input and output shafts being aligned on the same axis

F16H3/10

with one or more one-way clutches as an essential feature

F16H3/12

with means for synchronisation not incorporated in the clutches

F16H2003/123

using a brake

F16H3/126

using an electric drive

F16H3/14

Gearings for reversal only

F16H3/145

with a pair of coaxial bevel gears, rotatable in opposite directions

F16H3/16

essentially with both gears that can be put out of gear and continuously-meshing gears that can be disengaged from their shafts

In this group, gears which can be put out of mesh are not taken into consideration if they are used for reversal only.

F16H3/18

Gearings for reversal only

F16H3/20

exclusively or essentially using gears that can be moved out of gear

In this group, gears which can be put out of mesh are not taken into consideration if they are used for reversal only.

F16H3/22

with gears shiftable only axially

F16H3/24

with driving and driven shafts coaxial

F16H3/26

and two or more additional shafts

F16H3/28

an additional shaft being coaxial with the main shafts

F16H3/30

with driving and driven shafts not coaxial

F16H3/32

and an additional shaft

F16H3/34

with gears shiftable otherwise than only axially

F16H3/36

with a single gear meshable with any of a set of coaxial gears of different diameters

F16H3/363

the teeth of the set of coaxial gears being arranged on a surface of generally conical shape

F16H3/366

the teeth of the set of coaxial gears being arranged on a generally flat, e.g. disc-type, surface

F16H3/38

with synchro-meshing

F16H3/385

with braking means constructional features of the final output mechanisms for reversing F16H63/302

F16H3/40

Gearings for reversal only

F16H3/42

with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable

F16H3/423

the teeth being arranged on a surface of generally conical shape

F16H3/426

the teeth being arranged on a generally flat, e.g. disc-type surface

F16H3/44

using gears having orbital motion

the gear-ratio being changed by inversion of torque direction F16H3/005

F16H2003/442

comprising two or more sets of orbital gears arranged in a single plane

F16H2003/445

without permanent connection between the input and the set of orbital gears

F16H2003/447

without permanent connection between the set of orbital gears and the output

F16H3/46

Gearings having only two central gears, connected by orbital gears F16H3/68 - F16H3/78 take precedence

F16H3/48

with single orbital gears or pairs of rigidly-connected orbital gears

F16H3/50

comprising orbital conical gears

F16H3/52

comprising orbital spur gears

F16H3/54

one of the central gears being internally toothed and the other externally toothed

F16H3/56

both central gears being sun gears

F16H3/58

with sets of orbital gears, each consisting of two or more intermeshing orbital gears

F16H3/60

Gearings for reversal only

F16H3/62

Gearings having three or more central gears F16H3/68 - F16H3/78 take precedence

F16H3/64

composed of a number of gear trains, the drive always passing through all the trains, each train having not more than one connection for driving another train

F16H3/66

composed of a number of gear trains without drive passing from one train to another

F16H3/663

with conveying rotary motion between axially spaced orbital gears, e.g. RAVIGNEAUX

F16H3/666

with compound planetary gear units, e.g. two intermeshing orbital gears F16H3/663 takes precedence

F16H3/68

in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm

F16H3/70

in which the central axis of the gearing lies inside the periphery of an orbital gear

F16H3/72

with a secondary drive, e.g. regulating motor, in order to vary speed continuously

F16H3/721

with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously

F16H3/722

with a fluid throttle

F16H3/724

using external powered electric machines

F16H3/725

with means to change ratio in the mechanical gearing

F16H3/727

with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path special adapted for a hybrid electric vehicle B60K6/20

F16H3/728

with means to change ratio in the mechanical gearing

F16H3/74

Complexes, not using actuable speedchanging or regulating members, e.g. with gear ratio determined by free play of frictional or other forces

F16H3/76

with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable

F16H3/78

Special adaptation of synchronisation mechanisms to these gearings

F16H7/00

Gearing for conveying rotary motion by endless flexible members

F16H7/00

Gearings for conveying rotary motion by endless flexible members specific for conveying rotary motion with variable gear ratio or for reversing rotary motion F16H9/00

; chainwheels F16H55/30

F16H7/02

with belts

with V-belts

F16H7/023

with belts having a toothed contact surface or regularly spaced bosses or hollows for slipless or nearly slipless meshing with complementary profiled contact surface of a pulley toothed belts F16G1/28, F16G5/20

F16H2007/026

with belts running in a mist of oil

F16H7/04

with ropes

F16H7/06

with chains

F16H7/08

Means for varying tension of belts, ropes, or chains pulleys of adjustable construction F16H55/52

; gearings with endless belts F16H7/02; tensioning for chains or belts specially adapted for cycles B62M9/16; belt or chain tensioning arrangements for endless conveyors B65G23/44

F16H2007/0802

Actuators for final output members

F16H2007/0804

Leaf springs

F16H2007/0806

Compression coil springs

F16H2007/0808

Extension coil springs

F16H2007/081

Torsion springs

F16H2007/0812

Fluid pressure

F16H2007/0814

with valves opening on surplus pressure

F16H2007/0817

with means for venting unwanted gas

F16H2007/0819

Rubber or other elastic materials

F16H2007/0821

working with gravity

F16H2007/0823

Electric actuators

F16H2007/0825

influenced by other actuators of output members

F16H7/0827

for disconnecting the drive

F16H7/0829

with vibration damping means

F16H7/0831

of the dry friction type

F16H7/0834

of the viscous friction type, e.g. viscous fluid

F16H7/0836

of the fluid and restriction type, e.g. dashpot

F16H7/0838

of the dissipating material type, e.g. elastomeric spring

F16H2007/084

having vibration damping characteristics dependent on the moving direction of the tensioner

F16H2007/0842

Mounting or support of tensioner

F16H2007/0844

Mounting elements essentially within boundaries of final output members

F16H2007/0846

comprising a mechanical stopper

F16H7/0848

with means for impeding reverse motion

F16H2007/0851

Wedges

F16H2007/0853

Ratchets

F16H2007/0855

comprising a clip member engaging with the rack teeth

F16H2007/0857

Screw mechanisms

F16H2007/0859

Check valves

F16H2007/0861

comprising means for sensing tensioner position

F16H2007/0863

Finally actuated members, e.g. constructional details thereof

F16H2007/0865

Pulleys

F16H2007/0868

comprising means for changing working diameter of pulley

F16H2007/087

Sprockets

F16H2007/0872

Sliding members

F16H2007/0874

Two or more finally actuated members

F16H2007/0876

Control or adjustment of actuators

F16H2007/0878

Disabling during transport

F16H2007/088

Manual adjustment

F16H2007/0882

the tension being a function of temperature

F16H2007/0885

the tension being a function of engine running condition

F16H2007/0887

the tension being a function of load

F16H2007/0889

Path of movement of the finally actuated member

F16H2007/0891

Linear path

F16H2007/0893

Circular path

F16H2007/0895

Internal to external direction

F16H2007/0897

External to internal direction

F16H7/10

by adjusting the axis of a pulley

F16H7/0827 takes precedence

F16H7/12

of an idle pulley

F16H7/1209

with vibration damping means vibration damping per se

F16F

F16H7/1218

of the dry friction type

F16H7/1227

of the viscous friction type, e.g. viscous fluid

F16H7/1236

of the fluid and restriction type, e.g. dashpot

F16H7/1245

of the dissipating material type, e.g. elastomeric spring

F16H7/1254

without vibration damping means

F16H7/1263

where the axis of the pulley moves along a substantially straight path

F16H7/1272

with means for impeding reverse motion

F16H7/1281

where the axis of the pulley moves along a substantially circular path

F16H7/129

with means for impeding reverse motion

F16H7/14

of a driving or driven pulley

F16H7/16

without adjusting the driving or driven shaft

F16H7/18

Means for guiding or supporting belts, ropes, or chains construction of pulleys F16H55/36

F16H2007/185

the guiding surface in contact with the belt, rope or chain having particular shapes, structures or materials

F16H7/20

Mountings for rollers or pulleys

F16H7/22

Belt, rope, or chain shifters

F16H7/24

Equipment for mounting belts, ropes, or chains

F16H9/00

Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members control of change-speed or reversing-gearings conveying rotary motion F16H59/00 - F16H63/00

F16H9/02

without members having orbital motion

F16H9/04

using belts, V-belts, or ropes with toothed belts F16H9/24; pulleys of adjustable construction F16H55/52

F16H9/06

engaging a stepped pulley

F16H9/08

engaging a conical drum F16H9/12 takes precedence

F16H9/10

engaging a pulley provided with radially-actuatable elements carrying the belt

F16H9/12

engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members

F16H9/125

characterised by means for controlling the geometrical interrelationship of pulleys and the endless flexible member, e.g. belt alignment or position of the resulting axial pulley force in the plane perpendicular to the pulley axis

F16H9/14

using only one pulley built-up out of adjustable conical parts

F16H9/16

using two pulleys, both built-up out of adjustable conical parts

F16H2009/163

Arrangements of two or more belt gearings mounted in parallel, e.g. for increasing transmittable torque

F16H2009/166

Arrangements of two or more belt gearings mounted in series, e.g. for increasing ratio coverage

F16H9/18

only one flange of each pulley being adjustable

F16H9/20

both flanges of the pulleys being adjustable

F16H9/22

specially adapted for ropes

F16H9/24

using chains or toothed belts, belts in the form of links

Chains or belts specially adapted to such gearing

F16H2009/245

with idle wheels to assist ratio change

F16H9/26

with members having orbital motion

F16H13/00

Other friction gearing for conveying rotary motion

F16H13/00

Gearing for conveying rotary motion with constant gear ratio by friction between rotary members

friction discs F16H55/32

F16H13/02

without members having orbital motion

F16H13/04

with balls or with rollers acting in a similar manner

F16H13/06

with members having orbital motion

F16H13/08

with balls or with rollers acting in a similar manner

F16H13/10

Means for influencing the pressure between the members

F16H13/12

by magnetic forces

F16H13/14

for automatically varying the pressure mechanically

F16H15/00

Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members

gearings for reversal only F16H3/14, F16H3/60

; control of change-speed or reversing-gearings conveying rotary motion F16H59/00 - F16H63/00

F16H15/01

characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members

F16H15/02

without members having orbital motion

F16H15/04

Gearings providing a continuous range of gear ratios

F16H15/06

in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B

F16H15/08

in which the member B is a disc with a flat or approximately flat friction surface

F16H15/10

in which the axes of the two members cross or intersect

F16H15/12

in which one or each member is duplicated, e.g. for obtaining better transmission, for lessening the reaction forces on the bearings

F16H15/14

in which the axes of the members are parallel or approximately parallel

F16H15/16

in which the member B has a conical friction surface

F16H15/18

externally

F16H15/20

co-operating with the outer rim of the member A, which is perpendicular or nearly perpendicular to the friction surface of the member B

F16H15/22

the axes of the members being parallel or approximately parallel

F16H15/24

internally

F16H15/26

in which the member B has a spherical friction surface centered on its axis of revolution

F16H15/28

with external friction surface

F16H15/30

with internal friction surface

F16H15/32

in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line

F16H15/34

with convex friction surface

F16H15/36

with concave friction surface, e.g. a hollow toroid surface

F16H15/38

with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces

F16H2015/383

with two or more sets of toroid gearings arranged in parallel

F16H2015/386

with two or more sets of toroid gearings arranged in series

F16H15/40

in which two members co-operative by means of balls, or rollers of uniform effective diameter, not mounted on shafts

F16H15/42

in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first mentioned members

F16H15/44

in which two members of non-uniform effective diameter directly co-operate with one another

F16H15/46

Gearings providing a discontinuous or stepped range of gear ratios

F16H15/48

with members having orbital motion

F16H15/50

Gearings providing a continuous range of gear ratios

F16H15/503

in which two members co-operate by means of balls or rollers of uniform effective diameter, not mounted on shafts

F16H15/506

in which two members of non-uniform effective diameter directly co-operate with one another

F16H15/52

in which a member of uniform effective diameter mounted on a shaft may co-operate with different parts of another member

F16H15/54

in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first-mentioned members

F16H15/56

Gearings providing a discontinuous or stepped range of gear ratios

F16H19/00

Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion with intermittently-driving members F16H27/00 - F16H31/00

F16H19/001

for conveying reciprocating or limited rotary motion

F16H19/003

comprising a flexible member

F16H19/005

for conveying oscillating or limited rotary motion

F16H19/006

for converting reciprocating into an other reciprocating motion

F16H2019/008

Facilitating the engagement or stopping of gear sections

F16H19/02

for interconverting rotary

or oscillating

motion and reciprocating motion

F16H19/025

comprising a friction shaft

F16H19/04

comprising a rack

F16H19/043

for converting reciprocating movement in a continuous rotary movement or vice versa, e.g. by opposite racks engaging intermittently for a part of the stroke

F16H2019/046

Facilitating the engagement or stopping of racks

F16H19/06

comprising

flexible members, e.g. an

endless flexible member

Groups F16H19/0604 - F16H19/0672 are not complete pending reclassification; see also this group

F16H19/0604

with means to double or half the stroke of the reciprocating member

F16H2019/0609

the reciprocating motion being created by at least one drum or pulley with different diameters, using a differential effect

F16H2019/0613

the flexible member being a toothed belt or chain engaging a rack

F16H19/0618

the flexible member, e.g. cable, being wound on a drum or thread for creating axial movement parallel to the drum

F16H19/0622

for converting reciprocating movement into oscillating movement and vice versa, the reciprocating movement is perpendicular to the axis of oscillation

F16H19/0628

the flexible member, e.g. a cable, being wound with one string to a drum and unwound with the other string to create reciprocating movement of the flexible member

F16H19/0636

the flexible member being a non-buckling chain

F16H19/064

the flexible push member uses a bended profile to generate stiffness, e.g. spreading belts

F16H19/0645

the flexible push or pull member having guiding means, i.e. the flexible member being supported at least partially by a guide to transmit the reciprocating movement non-buckling chains F16H19/0636

F16H19/065

with flexible members between discs creating reciprocation by relative rotation of the discs

F16H19/0654

using twisting movement of flexible members to modify the axial length of the mechanism

F16H19/0659

combined with means for creating non-linear characteristics, e.g. cams; Means for creating different velocity on forward and reverse stroke

F16H19/0663

with telescopic means, e.g. for supporting or shielding the reciprocating member

F16H2019/0668

with open loop, e.g. with the free ends of the flexible member fixed to the casing, e.g. when the drive means are arranged on the carriage

F16H19/0672

characterised by means for tensioning the flexible member

F16H2019/0677

characterised by the means for fixing the flexible member to a drum

F16H2019/0681

the flexible member forming a closed loop

F16H2019/0686

the flexible member being directly driven by a pulley or chain wheel

F16H2019/069

with means for generating two superposed movements, e.g. for driving a X-Y table

F16H2019/0695

Generating pivoting movement of a joint

F16H19/08

for interconverting rotary motion and oscillating motion

F16H2019/085

by using flexible members

F16H21/00

Gearing for conveying or converting motion by means of levers, links, cams or screw-and-nut mechanisms

F16H21/00

Gearings comprising primarily only links or levers, with or without slides

F16H21/02

the movements of two or more independently-moving members being combined into a single movement

F16H21/04

Guiding mechanisms, e.g. for straight-line guidance

F16H21/06

which can be made ineffective when desired

F16H21/08

by pushing a reciprocating rod out of its operative position

F16H21/10

all movement being in, or parallel to, a single plane

F16H21/12

for conveying rotary motion

F16H21/14

by means of cranks, eccentrics, or like members fixed to one rotary member and guided along tracks on the other

F16H21/16

for interconverting rotary motion and reciprocating motion

F16H21/18

Crank gearings

Eccentric gearings

F16H21/20

with adjustment of throw

F16H21/22

with one connecting-rod and one guided slide to each crank or eccentric

F16H21/24

without further links or guides

F16H21/26

with toggle action

F16H21/28

with cams or additional guides

F16H21/30

with members having rolling contact

F16H21/32

with additional members comprising only pivoted links or arms

F16H21/34

with two or more connecting-rods to each crank or eccentric

F16H21/36

without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and-crank motion

F16H21/365

with planetary gearing having a ratio of 2:1 between sun gear and planet gear

F16H21/38

with means for temporary energy accumulation, e.g. to overcome dead-centre positions

F16H21/40

for interconverting rotary motion and oscillating motion

F16H21/42

with adjustable throw

F16H21/44

for conveying or interconverting oscillating or reciprocating motions

F16H21/46

with movements in three dimensions

F16H21/48

for conveying rotary motions

F16H21/50

for interconverting rotary motion and reciprocating motion

F16H23/00 takes precedence

F16H21/52

for interconverting rotary motion and oscillating motion

F16H21/54

for conveying or interconverting oscillating or reciprocating motions

F16H23/00

Wobble-plate gearings

Oblique-crank gearings

conveying rotary motion with toothed nutating gears F16H1/321

F16H23/02

with adjustment of throw by changing the position of the wobble-member gearings in which the transmission ratio is changed by adjustment of a wobble-plate F16H29/04; gearings with gyroscopic action, e.g. comprising wobble-plates F16H33/10

F16H23/04

with non-rotary wobble-members

F16H23/06

with sliding members hinged to reciprocating members

F16H23/08

connected to reciprocating members by connecting-rods

F16H23/10

with rotary wobble-plates with plane surfaces

F16H25/00

Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms

F16H25/02

the movements of two or more independently moving members being combined into a single movement

F16H25/04

for conveying rotary motion

F16H25/06

with intermediate members guided along tracks on both rotary members

F16H2025/063

the intermediate members being balls engaging on opposite cam discs

F16H2025/066

the intermediate members being rollers supported in a chain

F16H25/08

for interconverting rotary motion and reciprocating motion F16H23/00 takes precedence

F16H25/10

with adjustable throw

F16H25/12

with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal

or cams

F16H25/122

Gearings with helical grooves and automatic reversal

F16H25/125

having the cam on an end surface of the rotating element

F16H2025/127

using electric solenoids for generating the reciprocating motion

F16H25/14

with reciprocation perpendicular to the axis of rotation crank or eccentric gearings without swinging connecting-rod F16H21/36

F16H25/16

for interconverting rotary motion and oscillating motion

F16H25/18

for conveying or interconverting oscillating or reciprocating motions

F16H25/183

conveying only reciprocating motion, e.g. wedges

F16H25/186

with reciprocation along the axis of oscillation

F16H25/20

Screw mechanisms with automatic reversal F16H25/12

F16H25/2003

with arrangements for taking up backlash F16H25/2209 takes precedence

F16H25/2006

with more than one nut or with nuts consisting of more than one bearing part

F16H25/2009

with radial preloading

F16H2025/2012

using a spring member creating rotary torque for counter rotating the two nuts, e.g. a torsion bar

F16H25/2015

Means specially adapted for stopping actuators in the end position; Position sensing means

F16H25/2018

with both screw and nut being driven, i.e. screw and nut are both rotating

F16H25/2021

with means for avoiding overloading

F16H25/2025

with means to disengage the nut or screw from their counterpart; Means for connecting screw and nut for stopping reciprocating movement F16H25/2015 takes precedence

F16H2025/2028

using screw profiles with high efficiency for converting reciprocating motion into oscillating movement

F16H2025/2031

Actuator casings

F16H2025/2034

Extruded frame casings

F16H2025/2037

Actuator supports or means for fixing piston end, e.g. flanges

F16H2025/204

Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft

F16H2025/2043

Screw mechanisms driving an oscillating lever, e.g. lever with perpendicular pivoting axis

F16H2025/2046

with gears arranged perpendicular to screw shaft axis, e.g. helical gears engaging tangentially the screw shaft

F16H25/205

comprising alternate power paths, e.g. for fail safe back-up

F16H2025/2053

Screws in parallel arrangement driven simultaneously with an output member moved by the screws

F16H25/2056

Telescopic screws with at least three screw members in coaxial arrangement

F16H2025/2059

Superposing movement by two screws, e.g. with opposite thread direction telescopic screws with three screw members F16H25/2056

F16H2025/2062

Arrangements for driving the actuator

F16H2025/2065

Manual back-up means for overriding motor control, e.g. hand operation in case of failure

F16H2025/2068

Means for returning linear actuator to zero position, e.g. upon occurrence of failure by using a spring

F16H2025/2071

Disconnecting drive source from the actuator, e.g. using clutches for release of drive connection during manual control

F16H2025/2075

Coaxial drive motors

F16H2025/2078

the rotor being integrated with the nut or screw body

F16H2025/2081

Parallel arrangement of drive motor to screw axis

F16H2025/2084

Perpendicular arrangement of drive motor to screw axis

F16H2025/2087

using planetary gears

F16H2025/209

using worm gears

F16H2025/2093

using conical gears

F16H2025/2096

using endless flexible members

F16H25/22

with balls, rollers, or similar members between the co-operating parts

Elements essential to the use of such members

F16H25/2204

with balls

F16H25/2209

with arrangements for taking up backlash

F16H25/2214

with elements for guiding the circulating balls

F16H25/2219

Axially mounted end-deflectors

F16H25/2223

Cross over deflectors between adjacent thread turns, e.g. S-form deflectors connecting neighbouring threads

F16H25/2228

the device for circulation forming a part of the screw member

F16H25/2233

with cages or means to hold the balls in position

F16H25/2238

using ball spacers, i.e. spacers separating the balls, e.g. by forming a chain supporting the balls

F16H2025/2242

Thread profile of the screw or nut showing a pointed "gothic" arch in cross-section

F16H25/2247

with rollers

F16H25/2252

Planetary rollers between nut and screw

F16H2025/2257

with means for shifting planetary rollers axially, e.g. into central position

F16H25/2261

arranged substantially perpendicular to the screw shaft axis

F16H25/2266

arranged substantially in parallel to the screw shaft axis planetary rollers F16H25/2252

F16H2025/2271

with means for guiding circulating rollers

F16H2025/2276

using roller spacers, i.e. spacers separating the rollers, e.g. by forming a complete chain

F16H2025/228

Screw mechanisms having rollers being supported by the screw shaft and engaging the nut

F16H25/2285

with rings engaging the screw shaft with the inner perimeter, e.g. using inner rings of a ball bearing

F16H25/229

Eccentric rings with their axis arranged substantially parallel to the screw shaft axis

F16H25/2295

Rings which are inclined or can pivot around an axis perpendicular to the screw shaft axis

F16H25/24

Elements essential to such mechanisms, e.g. screws, nuts F16H25/22 takes precedence

F16H25/2409

one of the threads being replaced by elements specially formed for engaging the screw or nut, e.g. pins, racks, toothed belts

F16H25/2418

Screw seals, wipers, scrapers or the like

F16H25/2427

one of the threads being replaced by a wire or stripmetal, e.g. spring

F16H2025/2436

Intermediate screw supports for reducing unsupported length of screw shaft

F16H2025/2445

Supports or other means for compensating misalignment or offset between screw and nut

F16H25/2454

Brakes; Rotational locks

F16H2025/2463

using a wrap spring brake, i.e. a helical wind up spring for braking or locking

F16H25/2472

Safety nuts

F16H2025/2481

Special features for facilitating the manufacturing of spindles, nuts, or sleeves of screw devices

F16H2025/249

Special materials or coatings for screws or nuts lubrication F16H57/0497

F16H27/00

Gearings with intermittently-driving member

F16H27/00

Step-by-step mechanisms without freewheel members, e.g. Geneva drives

F16H27/02

with at least one reciprocating or oscillating transmission member

F16H27/04 takes precedence

F16H27/04

for converting continuous rotation into a step-by-step rotary movement

F16H27/045

Mechanism comprising a member with partially helical tracks

F16H27/06

Mechanisms with driving pins in driven slots, e.g. Geneva drives

F16H27/08

with driving toothed gears with interrupted toothing

F16H27/10

obtained by means of disengageable transmission members, combined or not combined with mechanisms according to group F16H27/06 or F16H27/08

F16H29/00

Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action

gearings for converting oscillating or reciprocating movement with freewheeling members or other intermittently-driving members into a rotary movement F16H31/00

F16H29/02

between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts F16H29/20, F16H29/22 take precedence

F16H29/04

in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts

F16H29/06

with concentric shafts, an annular intermediate member moving around and being supported on an adjustable crank or eccentric

F16H29/08

in which the transmission ratio is changed by adjustment of the path of movement, the location of the pivot, or the effective length, of an oscillating connecting member

F16H29/10

in which the transmission ratio is changed by directly acting on the intermittently driving members

F16H29/12

between rotary driving and driven members F16H29/20, F16H29/22 take precedence

F16H29/14

in which the transmission ratio is changed by adjustment of an otherwise stationary guide member for the intermittently-driving members

F16H29/16

in which the transmission ratio is changed by adjustment of the distance between the axes of the rotary members

F16H29/18

in which the intermittently-driving members slide along approximately radial guides while rotating with one of the rotary members

F16H29/20

the intermittently-acting members being shaped as worms, screws, or racks

F16H29/22

with automatic speed change

F16H31/00

Other gearings with freewheeling members or other intermittently driving members F16H21/00, F16H23/00, F16H25/00 take precedence

F16H31/001

Mechanisms with freewheeling members

F16H31/002

Hand-driven ratchets wrenches of the ratchet type B25B13/46

F16H31/003

Step-by-step mechanisms for rotary motion

F16H31/004

with pawls driven by a rotary cam

F16H31/005

with pawls driven by a reciprocating or oscillating transmission member F16H31/002, F16H31/004 take precedence

F16H31/006

with friction means

F16H31/007

Step-by-step mechanisms for linear motion

F16H31/008

with friction means

F16H33/00

Gearings based on repeated accumulation and delivery of energy

F16H33/02

Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels

F16H33/04

Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought

F16H33/06

based essentially on spring action

F16H33/08

based essentially on inertia

F16H33/10

with gyroscopic action, e.g. comprising wobble-plates, oblique cranks

F16H33/12

with a driving member connected differentially with both a driven member and an oscillatory member with large resistance to movement, e.g. Constantinesco gearing

F16H33/14

having orbital members influenced by regulating masses

F16H33/16

which have their own free motion, or consist of fluid

F16H33/18

of which the motion is constrained

F16H33/185

the masses being fixed to the orbital members

F16H33/20

for interconversion, based essentially on inertia, of rotary motion and reciprocating or oscillating motion

for converting into a linear propulsion force, i.e. inertia motors F03G3/00

F16H35/00

Gearings or mechanisms with other special functional features

F16H2035/001

Gearings with eccentric mounted gears, e.g. for cyclically varying ratio

F16H2035/003

Gearings comprising pulleys or toothed members of non-circular shape, e.g. elliptical gears harmonic drives with elliptical wave generators F16H49/001

F16H2035/005

Gearings or mechanisms preventing back-driving braking or locking of screw actuators F16H25/2454

F16H2035/006

Gearings or mechanisms for stopping or limiting movement, e.g. stopping a movement after few turns for linear screw actuators F16H25/2015

F16H35/008

for variation of rotational phase relationship, e.g. angular relationship between input and output shaft couplings F16D3/10

F16H35/02

for conveying rotary motion with cyclically varying velocity ratio

F16H35/06

Gearings designed to allow relative movement between supports thereof without ill effects special means compensating for misalignment of axes F16H1/26, F16H1/48

; mounting or supporting gearboxes F16H57/025

F16H35/08

for adjustment of members on moving parts from a stationary place

F16H35/10

Arrangements or devices for absorbing overload or preventing damage by overload

for screw mechanisms F16H25/2021

F16H2035/103

with drive interruption by structural failure of overload preventing means, e.g. using shear pins

F16H2035/106

Monitoring of overload

F16H35/12

Transmitting mechanisms with delayed effect

F16H35/14

Mechanisms with only two stable positions, e.g. acting at definite angular positions

F16H35/16

Mechanisms for movements or movement relations conforming to mathematical formulae

F16H35/18

Turning devices for rotatable members, e.g. shafts

F16H37/00

Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 combinations of mechanical gearing with fluid clutches or fluid gearing F16H47/00

F16H37/02

comprising essentially only toothed or friction gearings

F16H37/021

toothed gearing combined with continuous variable friction gearing

F16H37/022

the toothed gearing having orbital motion

F16H2037/023

CVT's provided with at least two forward and one reverse ratio in a serial arranged sub-transmission

F16H2037/025

CVT's in which the ratio coverage is used more than once to produce the overall transmission ratio coverage, e.g. by shift to end of range, then change ratio in sub-transmission and shift CVT through range once again

F16H2037/026

CVT layouts with particular features of reversing gear, e.g. to achieve compact arrangement

F16H37/027

toothed gearing combined with a gear using endless flexible members for reversing rotary motion only

F16H2037/028

having two distinct forward drive ratios and one reverse drive ratio arranged in series with a continuously variable transmission unit

F16H37/04

Combinations of toothed gearings only F16H37/06 takes precedence

F16H37/041

for conveying rotary motion with constant gear ratio

This group is not complete pending a reorganisation; see also subgroups of F16H1/00

F16H37/042

change gear transmissions in group arrangement

F16H37/043

without gears having orbital motion

F16H2037/044

comprising a separate gearing unit for shifting between forward or reverse

F16H2037/045

comprising a separate gearing unit for shifting between high and low ratio range

F16H37/046

with an additional planetary gear train, e.g. creep gear, overdrive

F16H2037/047

comprising one or more orbital gear sets coaxial with a first shaft and having more than one drive connection to a second shaft parallel to the first shaft

F16H2037/048

Combinations of parallel shaft and orbital motion gearing, wherein the orbital motion gear has more than one connection with the parallel shaft gearing

F16H2037/049

Forward-reverse units with forward and reverse gears for achieving multiple forward and reverse gears, e.g. for working machines

F16H37/06

with a plurality of driving or driven shafts

with arrangements for dividing torque between two or more intermediate shafts

F16H37/065

with a plurality of driving or driven shafts F16H37/08 takes precedence

F16H37/08

with differential gearing

F16H37/0806

with a plurality of driving or driven shafts

F16H37/0813

with only one input shaft differentials for four wheel drive vehicles B60K17/346

F16H37/082

and additional planetary reduction gears

F16H37/0826

with only one output shaft

F16H37/0833

with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths F16H3/72 takes precedence

F16H37/084

at least one power path being a continuously variable transmission, i.e. CVT

F16H37/0846

CVT using endless flexible members

F16H37/0853

CVT using friction between rotary members having a first member of uniform effective diameter cooperating with different parts of a second member

F16H37/086

CVT using two coaxial friction members cooperating with at least one intermediate friction member

F16H2037/0866

Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft

F16H2037/0873

with switching, e.g. to change ranges

F16H2037/088

Power split variators with summing differentials, with the input of the CVT connected or connectable to the input shaft

F16H2037/0886

with switching means, e.g. to change ranges

F16H2037/0893

characterised in the ratio of the continuously variable transmission is different from zero when the output shaft speed is zero

F16H37/10

at both ends of intermediate shafts

F16H37/0806 takes precedence

F16H2037/101

Power split variators with one differential at each end of the CVT

F16H2037/102

the input or output shaft of the transmission is connected or connectable to two or more differentials

F16H2037/103

Power split variators with each end of the CVT connected or connectable to a Ravigneaux set

F16H2037/104

Power split variators with one end of the CVT connected or connectable to two or more differentials

F16H2037/105

characterised by number of modes or ranges, e.g. for compound gearing

F16H2037/106

with switching means to provide two variator modes or ranges

F16H2037/107

with switching means to provide three variator modes or ranges

F16H2037/108

with switching means to provide four or more variator modes or ranges

F16H37/12

Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types gearings with cranks, eccentrics, or like members fixed to one rotary member and guided along tracks on the other F16H21/14; crank or eccentric gearings with cams or additional guides, or with members having rolling contact F16H21/28, F16H21/30

F16H37/122

for interconverting rotary motion and oscillating motion

F16H37/124

for interconverting rotary motion and reciprocating motion

F16H37/126

Guiding mechanism using levers combined with gearings for straight line output movement, e.g. by using gears or pulleys with ratio 2:1

F16H2037/128

Generating reciprocating motion by a planetary gear (ratio 2:1) using endless flexible members

F16H37/14

the movements of two or more independently-moving members being combined into a single movement

screw mechanisms with both nut and screw being driven F16H25/2018

F16H37/16

with a driving or driven member which both rotates or oscillates on its axis and reciprocates

F16H39/00

Fluid gearing

F16H39/00

Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution control of exclusively fluid gearing F16H61/38

F16H2039/005

comprising arrangements or layout to change the capacity of the motor or pump by moving the hydraulic chamber of the motor or pump

F16H39/01

Pneumatic gearing

Gearing working with subatmospheric pressure

F16H39/02

with liquid motors at a distance from liquid pumps

F16H39/04

with liquid motor and pump combined in one unit

F16H39/06

pump and motor being of the same type

F16H39/08

each with one main shaft and provided with pistons reciprocating in cylinders

F16H39/10

with cylinders arranged around, and parallel or approximately parallel to the main axis of the gearing

F16H2039/105

at least one pair of motors or pumps sharing a common swash plate

F16H39/12

with stationary cylinders

F16H39/14

with cylinders carried in rotary cylinder blocks or cylinder-bearing members

F16H39/16

with cylinders arranged perpendicular to the main axis of the gearing

F16H39/18

the connections of the pistons being at the outer ends of the cylinders

F16H39/20

the connections of the pistons being at the inner ends of the cylinders

F16H39/22

with liquid chambers shaped as bodies of revolution concentric with the main axis of the gearing

F16H39/24

with rotary displacement members, e.g. provided with axially or radially movable vanes passing movable sealing members

F16H39/26

with liquid chambers not shaped as bodies of revolution or shaped as bodies of revolution eccentric to the main axis of the gearing

F16H39/28

with liquid chambers formed in rotary members

F16H39/30

with liquid chambers formed in stationary members

F16H39/32

with sliding vanes carried by the rotor

F16H39/34

in which a rotor on one shaft co-operates with a rotor on another shaft

F16H39/36

toothed-gear type

F16H39/38

Displacement screw-pump type

F16H39/40

Hydraulic differential gearings, e.g. having a rotary input housing with interconnected liquid chambers for both outputs

F16H39/42

pump and motor being of different types

F16H41/00

Rotary fluid gearing of the hydrokinetic type control of exclusively fluid gearing F16H61/38

F16H41/02

with pump and turbine connected by conduits or ducts

F16H41/04

Combined pump-turbine units

F16H41/22

Gearing systems consisting of a plurality of hydrokinetic units operating alternatively, e.g. made effective or ineffective by filling or emptying or by mechanical clutches

F16H41/24

Details

F16H2041/243

Connections between pump shell and cover shell of the turbine

F16H2041/246

relating to one way clutch of the stator

F16H41/26

Shape of runner blades or channels with respect to function

F16H41/28

with respect to manufacture, e.g. blade attachment

F16H2041/285

of stator blades

F16H41/30

relating to venting, lubrication, cooling, circulation of the cooling medium

F16H41/32

Selection of working fluids

F16H43/00

Other fluid gearing, e.g. with oscillating input or output

generating mechanical vibrations of infrasonic or sonic frequency B06B; percussive tools B25D9/00; mine roof supports for step by step movement E21D23/00; reciprocating-piston machines without rotary main shaft F01B11/08; fluid pressure actuators F15B

F16H43/02

Fluid gearing actuated by pressure waves

F16H45/00

Combinations of fluid gearings for conveying rotary motion with couplings or clutches gearing systems consisting of a plurality of hydrokinetic units operating alternatively F16H41/22

, F16H47/085

Clutches for varying working conditions in fluid torque-converters are regarded as part of the torque converter

F16H2045/002

comprising a clutch between prime mover and fluid gearing

F16H2045/005

comprising a clutch between fluid gearing and the mechanical gearing unit

F16H2045/007

comprising a damper between turbine of the fluid gearing and the mechanical gearing unit

F16H45/02

with mechanical clutches for bridging a fluid gearing of the hydrokinetic type control of torque converter lock-up clutches F16H61/14

F16H2045/0205

two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch

F16H2045/021

three chamber system, i.e. comprising a separated, closed chamber specially adapted for actuating a lock-up clutch

F16H2045/0215

Details of oil circulation

F16H2045/0221

with damping means

F16H2045/0226

comprising two or more vibration dampers

F16H2045/0231

arranged in series

F16H2045/0236

with axial dampers, e.g. comprising a ramp system

F16H2045/0242

with viscous dampers

F16H2045/0247

having a turbine with hydrodynamic damping means

F16H2045/0252

having a damper arranged on input side of the lock-up clutch

F16H2045/0257

having a pump adapted for use as a secondary mass of the damping system

F16H2045/0263

the damper comprising a pendulum

F16H2045/0268

the damper comprising a gearing

F16H2045/0273

characterised by the type of the friction surface of the lock-up clutch

F16H2045/0278

comprising only two co-acting friction surfaces

F16H2045/0284

Multiple disk type lock-up clutch

F16H2045/0289

Details of friction surfaces of the lock-up clutch

F16H2045/0294

Single disk type lock-up clutch, i.e. using a single disc engaged between friction members

F16H47/00

Combinations of mechanical gearing with fluid clutches or fluid gearing

F16H47/02

the fluid gearing being of the volumetric type

F16H2047/025

the fluid gearing comprising a plurality of pumps or motors

F16H47/04

the mechanical gearing being of the type with members having orbital motion

F16H2047/045

the fluid gearing comprising a plurality of pumps or motors

F16H47/06

the fluid gearing being of the hydrokinetic type

F16H47/065

the mechanical gearing being of the friction or endless flexible member type

F16H47/07

using two or more power-transmitting fluid circuits

F16H47/065,

F16H47/10 take precedence

F16H47/08

the mechanical gearing being of the type with members having orbital motion

F16H47/065 takes precedence

F16H47/085

with at least two mechanical connections between the hydraulic device and the mechanical transmissions

F16H47/10

using two or more power-transmitting fluid circuits

F16H47/12

the members with orbital motion having vanes interacting with the fluid

F16H48/00

Differential gearings cooling or lubricating of differential gearing F16H57/04

When classifying in this main group, in the absence of an indication to the contrary, classification is made in all appropriate places.

F16H2048/02

Transfer gears for influencing drive between outputs

F16H2048/04

having unequal torque transfer between two outputs

F16H48/05

Multiple interconnected differential sets

F16H48/06

with gears having orbital motion

F16H48/08

comprising bevel gears

F16H2048/082

characterised by the arrangement of output shafts

F16H2048/085

characterised by shafts or gear carriers for orbital gears

F16H2048/087

characterised by the pinion gears, e.g. their type or arrangement

F16H48/10

with orbital spur gears

F16H2048/102

with spur gears engaging face gears

F16H2048/104

characterised by two ring gears

F16H2048/106

characterised by two sun gears

F16H48/11

having intermeshing planet gears

F16H48/12

without gears having orbital motion

F16H48/14

with cams

F16H48/142

consisting of linked clutches using axially movable inter-engaging parts

F16H48/145

with friction clutching members

F16H48/147

with driven cam followers or balls engaging two opposite cams

F16H48/16

with freewheels

F16H48/18

with fluid gearing

F16H48/19

consisting of two linked clutches

F16H48/20

Arrangements for suppressing or influencing the differential action, e.g. locking devices

F16H2048/201

with means directly braking the orbital gears

F16H2048/202

using freewheel clutches

F16H2048/204

Control of arrangements for suppressing differential actions

F16H2048/205

using the steering as a control parameter

F16H2048/207

using torque sensors

F16H2048/208

using flywheels

F16H48/22

using friction clutches or brakes

F16H48/24

using positive clutches or brakes

F16H48/26

using fluid action, e.g. viscous clutches

F16H2048/265

with a fluid throttling means

F16H48/27

using internally-actuatable fluid pressure, e.g. internal pump types

F16H48/28

using self-locking gears or self-braking gears

F16H2048/282

using the axial movement of axially movable bevel gears

F16H48/285

with self-braking intermeshing gears having parallel axes and having worms or helical teeth

F16H48/29

with self-braking intermeshing gears having perpendicular arranged axes and having worms or helical teeth

F16H48/295

using multiple means for force boosting

F16H48/30

using externally-actuatable means

F16H2048/305

using manual actuators

F16H48/32

using fluid pressure actuators

F16H48/34

using electromagnetic or electric actuators

F16H2048/343

using a rotary motor

F16H2048/346

using a linear motor

F16H48/36

characterised by intentionally generating speed difference between outputs

F16H2048/362

using a continuously variable transmission

F16H2048/364

using electric or hydraulic motors

F16H2048/366

using additional non-orbital gears in combination with clutches or brakes

F16H2048/368

using additional orbital gears in combination with clutches or brakes

F16H48/38

Constructional details the outer casing comprising the differential and supporting input and output shafts F16H57/037

F16H2048/382

Methods for manufacturing differential gearings

F16H2048/385

of the ring or crown gear

F16H2048/387

Shields or washers

F16H48/40

characterised by features of the rotating cases

F16H2048/405

characterised by features of the bearing of the rotating case

F16H48/42

characterised by features of the input shafts, e.g. mounting of drive gears thereon

F16H2048/423

characterised by bearing arrangement

F16H2048/426

characterised by spigot bearing arrangement, e.g. bearing for supporting the free end of the drive shaft pinion

F16H49/00

Other gearings

F16H49/001

Wave gearings, e.g. harmonic drive transmissions harmonic drives specially adapted for positioning programme-controlled manipulators B25J9/1025

F16H2049/003

Features of the flexsplines therefor

F16H49/005

Magnetic gearings with physical contact between gears rotating torque transmitting elements of the permanent-magnet type H02K49/102

F16H2049/006

Wave generators producing a non-elliptical shape of flexsplines, i.e. with a qualified different shape than elliptical

F16H2049/008

Linear wave gearings, i.e. harmonic type gearing imposing a strain wave to a straight flexible member engaging a second member with different pitch to generate linear motion thereof

F16H51/00

Details of gearing or mechanisms

F16H51/00

Levers of gearing mechanisms

F16H51/02

adjustable

F16H53/00

Cams

; Non-rotary cams;

or cam-followers, e.g. rollers for gearing mechanisms

F16H53/02

Single-track cams for single-revolution cycles

Camshafts with such cams

F16H53/025

characterised by their construction, e.g. assembling or manufacturing features grinding of camshafts B24B19/12

F16H53/04

Adjustable cams

F16H53/06

Cam-followers F16H53/08 takes precedence

F16H53/08

Multi-track cams, e.g. for cycles consisting of several revolutions

Cam-followers specially adapted for such cams

F16H55/00

Elements with teeth or friction surfaces for conveying motion

Worms, pulleys or sheaves for gearing mechanisms of screw-and-nut gearing F16H25/00

F16H55/02

Toothed members

Worms

F16H55/06

Use of materials

Use of treatments of toothed members or worms to affect their intrinsic material properties

coatings for lubrication F16H57/041; producing gear wheels from plastics or substances in a plastic state B29D15/00; heat treatment C21D9/32; electrolytic surface treatment C25D; heating by electromagnetic field H05B6/00

F16H2055/065

Moulded gears, e.g. inserts therefor

F16H55/08

Profiling

F16H55/0806

Involute profile

F16H55/0813

Intersecting-shaft arrangement of the toothed members

F16H55/082

Skewed-shaft arrangement of the toothed members, i.e. non-intersecting shafts

F16H55/0826

Novikov-Wildhaber profile

F16H55/0833

Flexible toothed member, e.g. harmonic drive

F16H55/084

Non-circular rigid toothed member, e.g. elliptic gear

F16H55/0846

Intersecting-shaft arrangement of the toothed members F16H55/0813, F16H55/0826, F16H55/0833, F16H55/084 take precedence

F16H55/0853

Skewed-shaft arrangement of the toothed members F16H55/082, F16H55/0826, F16H55/0833, F16H55/084 take precedence

F16H2055/086

Silent gear profiles

F16H2055/0866

Profiles for improving radial engagement of gears, e.g. chamfers on the tips of the teeth

F16H55/0873

for improving axial engagement, e.g. a chamfer at the end of the tooth flank

F16H55/088

with corrections on tip or foot of the teeth, e.g. addendum relief for better approach contact

F16H55/0886

with corrections along the width, e.g. flank width crowning for better load distribution

F16H2055/0893

for parallel shaft arrangement of toothed members

F16H55/10

Constructively simple tooth shapes, e.g. shaped as pins, as balls

gearwork for clocks and watches G04B13/00

F16H55/12

with body or rim assembled out of detachable parts

F16H55/14

Construction providing resilience or vibration-damping F16H55/06 takes precedence

F16H55/16

relating to teeth only

F16H55/17

Toothed wheels worm wheels F16H55/22; chain wheels F16H55/30

F16H55/171

Toothed belt pulleys

F16H2055/173

Crown gears, i.e. gears have axially arranged teeth

F16H2055/175

specially adapted for easy repair, e.g. exchange of worn teeth

F16H2055/176

Ring gears with inner teeth

F16H2055/178

combined with clutch means, e.g. gear with integrated synchronizer clutch

F16H55/18

Special devices for taking up backlash

for gears having orbital motion F16H1/2863

F16H2055/185

using compound gears with coincident teeth of different material, e.g. laminated construction of metal and elastomeric gear layers, where elastic layer is slightly oversized

F16H55/20

for bevel gears

F16H55/22

for transmissions with crossing shafts, especially worms, worm-gears

F16H55/24

Special devices for taking up backlash

F16H55/26

Racks

F16H55/28

Special devices for taking up backlash

F16H2055/281

Cylindrical or half-cylindrical bushings around the rack, e.g. using special wedges to reduce play

F16H55/283

using pressure yokes

F16H55/285

with rollers or balls to reduce friction

F16H55/286

with asymmetric layout of the yoke

F16H55/288

comprising two or more pressure yokes

F16H55/30

Chain-wheels

F16H55/303

for round linked chains, i.e. hoisting chains with identical links

F16H2055/306

with means providing resilience or vibration damping in chain sprocket wheels

F16H55/32

Friction members

F16H2055/325

characterized by roughness or hardness of friction surface

F16H55/34

Non-adjustable friction discs

F16H55/36

Pulleys with features essential for adjustment F16H55/52

F16H2055/363

with special means or properties for lateral tracking of the flexible members running on the pulley, e.g. with crowning to keep a belt on track

F16H2055/366

with means providing resilience or vibration damping

F16H55/38

Means or measures for increasing adhesion

F16H55/40

with spokes F16H55/48 takes precedence

F16H55/42

Laminated pulleys

F16H55/44

Sheet-metal pulleys

F16H55/46

Split pulleys

F16H55/48

manufactured exclusively or in part of non-metallic material, e.g. plastics F16H55/38, F16H55/42, F16H55/46 take precedence

; manufacture of wooden wheels B27H7/00

F16H55/49

Features essential to V-belts pulleys

F16H55/50

Features essential to rope pulleys

F16H55/52

Pulleys or friction discs of adjustable construction

F16H55/54

of which the bearing parts are radially adjustable

F16H55/56

of which the bearing parts are relatively axially adjustable

F16H55/563

actuated by centrifugal masses

F16H55/566

only adjustable when pulley is stationary

F16H57/00

General details of gearing of screw-and-nut gearing F16H25/00; of fluid gearing F16H39/00 - F16H43/00

F16H57/0006

Vibration-damping or noise reducing means specially adapted for gearings devices for varying tension of belts, ropes or chains with damping means F16H7/0829; toothed members with construction providing vibration damping F16H55/14; reducing vibrations or noise of the gearbox casing F16H57/028; suppression of vibrations or noise of gear selectors F16H59/0208; control of hydrostatic fluid gearing preventing or reducing vibrations or noise F16H61/4183

F16H2057/0012

for reducing drive line oscillations

F16H57/0018

Shaft assemblies for gearings camshafts with single track cams F16H53/02

F16H57/0025

with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods

F16H57/0031

with gearing elements rotatable supported on the shaft F16H57/021 takes precedence

F16H57/0037

Special features of coaxial shafts, e.g. relative support thereof

F16H2057/0043

Mounting or adjusting transmission parts by robots

F16H2057/005

Mounting preassembled units, i.e. using pre-mounted structures to speed up final mounting process mounting of gears or shafts in a gearbox F16H57/022

F16H2057/0056

Mounting parts arranged in special position or by special sequence, e.g. for keeping particular parts in his position during assembly

F16H2057/0062

Tools specially adapted for assembly of transmissions

F16H2057/0068

Repairing of transmissions by using repair kits for gear wheels F16H2055/175

F16H2057/0075

Modifying standard transmissions from manufacturer, e.g. by adding an extension for additional ratios for control F16H2061/0062

F16H2057/0081

Fixing of, or adapting to transmission failure detecting transmission failures F16H2057/018

F16H2057/0087

Computer aided design [CAD] specially adapted for gearing features computer aided design per se

G06F30/00

; Analysis of gear systems

F16H2057/0093

Means or measures for transport, shipping or packaging

F16H57/01

Monitoring wear or stress of gearing elements, e.g. for triggering maintenance

F16H2057/012

of gearings

F16H2057/014

of friction elements in transmissions

F16H2057/016

Monitoring of overload conditions

F16H2057/018

Detection of mechanical transmission failures fixing or adapting to failure F16H2057/0081; of transmission control F16H61/12

F16H57/02

Gearboxes

Mounting gearing therein

When classifying in this group, in the absence of an indication to the contrary, classification is made in all appropriate subgroups.

F16H57/02004

the gears being positioned relative to one another by rolling members or by specially adapted surfaces on the gears, e.g. by a rolling surface with the diameter of the pitch circle

F16H2057/02008

characterised by specific dividing lines or planes of the gear case

F16H2057/02013

Extension units for gearboxes, e.g. additional units attached to a main gear

F16H2057/02017

characterised by special features related to the manufacturing of the gear case, e.g. special adaptations for casting

F16H2057/02021

with means for adjusting alignment

F16H2057/02026

Connection of auxiliaries with a gear case; Mounting of auxiliaries on the gearbox

F16H2057/0203

the gearbox is associated or combined with a crank case of an engine

F16H2057/02034

Gearboxes combined or connected with electric machines structural association with electric machines H02K7/116

F16H2057/02039

Gearboxes for particular applications

F16H2057/02043

for vehicle transmissions

F16H2057/02047

Automatic transmissions

F16H2057/02052

Axle units; Transfer casings for four wheel drive

F16H2057/02056

for utility vehicles, e.g. tractors or agricultural machines

F16H2057/0206

for commercial vehicles, e.g. buses or trucks

F16H2057/02065

for motorcycles or squads

F16H2057/02069

for industrial applications

F16H2057/02073

Reduction gearboxes for industry

F16H2057/02078

for wind turbines

F16H2057/02082

for application in vehicles other than propelling, e.g. adjustment of parts

F16H2057/02086

Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing

F16H2057/02091

Measures for reducing weight of gearbox by using particular materials F16H57/032

F16H2057/02095

Measures for reducing number of parts or components

F16H57/021

Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings

F16H2057/0213

Support of worm gear shafts

F16H2057/0216

Intermediate shaft supports, e.g. by using a partition wall

F16H57/022

Adjustment of gear shafts or bearings for compensating misalignment of axes of toothed gearings without orbital motion F16H1/26; for compensating misalignment of axes of planetary gears F16H1/48

F16H2057/0221

Axial adjustment

F16H2057/0222

Lateral adjustment

F16H2057/0224

using eccentric bushes

F16H2057/0225

with means for adjusting alignment

F16H2057/0227

Assembly method measuring first tolerances or position and selecting mating parts accordingly, e.g. special sized shims for transmission bearings

F16H2057/0228

Mounting with rough tolerances and fine adjustment after assembly

F16H57/023

Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly

F16H2057/0235

specially adapted to allow easy accessibility and repair using repair kits F16H2057/0068

F16H57/025

Support of gearboxes, e.g. torque arms, or attachment to other devices

F16H57/027

characterised by means for venting gearboxes, e.g. air breathers

F16H57/028

characterised by means for reducing vibration or noise

F16H57/029

characterised by means for sealing the gearboxes, e.g. to improve airtightness

F16H57/03

characterised by means for reinforcing gearboxes, e.g. ribs

F16H57/031

characterised by covers or lids for gearboxes

F16H57/032

characterised by the materials used

F16H2057/0325

Moulded casings made from plastic

F16H57/033

Series gearboxes, e.g. gearboxes based on the same design being available in different sizes or gearboxes using a combination of several standardised units

F16H2057/0335

Series transmissions of modular design, e.g. providing for different transmission ratios or power ranges

F16H57/035

Gearboxes for gearing with endless flexible members

F16H57/037

Gearboxes for accommodating differential gearings rotating cases for differential gearings F16H48/40

F16H57/038

Gearboxes for accommodating bevel gears F16H57/037 takes precedence

F16H57/039

Gearboxes for accommodating worm gears

F16H57/04

Features relating to lubrication or cooling

or heating

in hydrokinetic gearing F16H41/30;

control of lubrication or cooling in hydrostatic gearing F16H61/4165

F16H57/0401

using different fluids, e.g. a traction fluid for traction gearing and a lubricant for bearings or reduction gears

F16H57/0402

Cleaning of lubricants, e.g. filters or magnets

F16H57/0404

Lubricant filters

F16H57/0405

Monitoring quality of lubricant or hydraulic fluids

F16H57/0406

Absorption elements for lubricants, e.g. oil felts

F16H57/0408

Exchange, draining or filling of transmission lubricant

F16H57/0409

characterised by the problem to increase efficiency, e.g. by reducing splash losses

F16H57/041

Coatings or solid lubricants, e.g. antiseize layers or pastes

F16H57/0412

Cooling or heating; Control of temperature

F16H57/0413

Controlled cooling or heating of lubricant; Temperature control therefor

F16H57/0415

Air cooling or ventilation; Heat exchangers; Thermal insulations

F16H57/0416

Air cooling or ventilation

F16H57/0417

Heat exchangers adapted or integrated in the gearing

F16H57/0419

Thermal insulations

F16H57/042

Guidance of lubricant

F16H57/0421

on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like

F16H57/0423

Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes means for guiding lubricant into an axial channel of a shaft F16H57/0426; lubrication by injection, injection nozzles or tubes therefore F16H57/0456

F16H57/0424

Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes means for guiding lubricant into an axial channel of a shaft F16H57/0426

F16H57/0426

Means for guiding lubricant into an axial channel of a shaft

F16H57/0427

on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force

F16H57/0428

Grooves with pumping effect for supplying lubricants

F16H57/043

within rotary parts, e.g. axial channels or radial openings in shafts

F16H57/0431

Means for guiding lubricant directly onto a tooth surface or to foot areas of a gear, e.g. by holes or grooves in a tooth flank

F16H57/0432

Lubricant guiding means on or inside shift rods or shift forks shift rods or shift forks to be lubricated, cooled or heated F16H57/0468

F16H57/0434

relating to lubrication supply, e.g. pumps arrangement of pumps F16H57/0441; Pressure control grooves with pumping effect for supplying lubricant F16H57/0428; generation and variation of line pressure for transmission control F16H61/0021

F16H57/0435

Pressure control for supplying lubricant; Circuits or valves therefor

F16H57/0436

Pumps

F16H57/0438

Pumps of jet type, e.g. jet pumps with means to inject high pressure fluid to the suction area thereby supercharging the pump or means reducing cavitations

F16H57/0439

using multiple pumps with different power sources or a single pump with different power sources, e.g. one and the same pump may selectively be driven by either the engine or an electric motor

F16H57/0441

Arrangements of pumps

F16H57/0442

for supply in case of failure, i.e. auxiliary supply

F16H57/0443

for supply of lubricant during tilt or high acceleration, e.g. problems related to the tilt or extreme acceleration of the transmission casing and the supply of lubricant under these conditions

F16H57/0445

for supply of different gearbox casings or sections

F16H57/0446

the supply forming part of the transmission control unit, e.g. for automatic transmissions

F16H57/0447

Control of lubricant levels, e.g. lubricant level control dependent on temperature

F16H57/0449

Sensors or indicators for controlling the fluid level

F16H57/045

Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case

F16H57/0452

Oil pans

F16H57/0453

Section walls to divide a gear sump

F16H57/0454

Sealings between different partitions of a gearing or to a reservoir means for sealing gearboxes F16H57/029

F16H57/0456

Lubrication by injection; Injection nozzles or tubes therefor oil mist or spray lubrication F16H57/0458

F16H57/0457

Splash lubrication characterised by the problem reducing losses, e.g. splash losses F16H57/0409

F16H57/0458

Oil-mist or spray lubrication; Means to reduce foam formation reducing foam formation by venting F16H57/027

F16H57/046

Oil-mist or spray lubrication

F16H57/0461

Means to reduce foam formation

F16H57/0463

Grease lubrication; Drop-feed lubrication

F16H57/0464

Grease lubrication

F16H57/0465

Drop-feed lubrication

F16H57/0467

Elements of gearings to be lubricated, cooled or heated

F16H57/0468

Shift rods or shift forks

F16H57/0469

Bearings or seals

F16H57/0471

Bearing

F16H57/0472

Seals

F16H57/0473

Friction devices, e.g. clutches or brakes

F16H57/0475

Engine and gearing, i.e. joint lubrication or cooling or heating thereof electric machines and gearing F16H57/0476

F16H57/0476

Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof

F16H57/0478

Synchromesh devices

F16H57/0479

Gears or bearings on planet carriers

F16H57/048

Type of gearings to be lubricated, cooled or heated

F16H57/0482

Gearings with gears having orbital motion

F16H57/0483

Axle or inter-axle differentials

F16H57/0484

with variable gear ratio or for reversing rotary motion

F16H57/0486

with fixed gear ratio differentials F16H57/0483

F16H57/0487

Friction gearings

F16H57/0489

with endless flexible members, e.g. belt CVTs

F16H57/049

of the toroid type

F16H57/0491

of the cone ring type

F16H57/0493

Gearings with spur or bevel gears differentials with spur or bevel gears F16H57/0483

F16H57/0494

with variable gear ratio or for reversing rotary motion

F16H57/0495

with fixed gear ratio

F16H57/0497

Screw mechanisms

F16H57/0498

Worm gearings

F16H57/05

of chains

F16H57/08

of gearings with members having orbital motion

F16H57/082

Planet carriers

F16H2057/085

Bearings for orbital gears

F16H2057/087

Arrangement and support of friction devices in planetary gearings, e.g. support of clutch drums, stacked arrangements of friction devices see also arrangements for shifting planetary gears F16H3/62, F16H63/3026

F16H57/10

Braking arrangements

F16H57/12

Arrangements for adjusting or for taking-up backlash not provided for elsewhere

F16H2057/121

using parallel torque paths and means to twist the two path against each other

F16H2057/122

by using two independent drive sources, e.g. electric motors

F16H2057/123

using electric control means

F16H2057/125

Adjustment of backlash during mounting or assembly of gearing

F16H2057/126

Self-adjusting during operation, e.g. by a spring

F16H2057/127

using springs

F16H2057/128

using axial positioning of gear wheel with addendum modification on gear width, i.e. backlash is compensated by axial positioning of a slightly conical gear wheel

F16H59/00

Control of gearings conveying rotary motion

Attention is drawn to the Notes after the title of subclass B60W.

In groups F16H59/00 - F16H63/00, clutches positioned within a gearbox are considered as comprising part of the gearings.

In groups F16H59/00 - F16H63/00, the following terms or expressions are used with the meaning indicated:

"final output element" means the final element which is moved to establish a gear ratio, i.e. which achieves the linking between two power transmission means, e.g. reverse idler gear, gear cluster, coupling sleeve, apply piston of a hydraulic clutch;

"mechanism" means a kinematic chain consisting either of a single element or alternatively of a series of elements, the position of each point on the kinematic chain being derivable from the position of any other point on the chain, and therefore, for a given position of a point on one of the elements forming the kinematic chain there is only one position for each of the other points on the elements forming the kinematic chain;

"final output mechanism" means the mechanism which includes the final output element;

"actuating mechanism" means the mechanism, the movement of which causes the movement of another mechanism by being in mutual contact;

"final actuating mechanism" means the mechanism actuating the final output mechanism.

"mechanical force" means the force transmitted by an actuating mechanism or the human body

Combinations of features individually covered by group F16H61/00 and one or both of groups F16H59/00 and F16H63/00 are classified in group F16H61/00.

Combinations of features individually covered by groups F16H59/00 and F16H63/00 are classified in group F16H63/00.

When classifying in groups F16H59/00 - F16H63/00, control inputs or types of gearing, which are not identified by the preceding notes concerning combinations, and which are considered to represent information of interest for search, may also be classified. Such non-obligatory classification should be given as "additional information", e.g. selected from subgroup F16H61/66 relating to the type of gearing controlled or from group F16H59/00 relating to control inputs

F16H59/00

Control inputs to

control units of

change-speed-, or reversing-gearings for conveying rotary motion

F16H2059/003

Detecting or using driving style of a driver, e.g. for adapting shift schedules

F16H2059/006

Overriding automatic control

F16H59/02

Selector apparatus

Selection apparatus of general applicability or of interest apart from its use in control of gearings conveying rotary motion is also classified in subclass G05G

F16H59/0204

for automatic transmissions with means for range selection and manual shifting, e.g. range selector with tiptronic

F16H59/0208

with means for suppression of vibrations or reduction of noise

F16H59/0213

with sealing means, e.g. against entry of dust

F16H59/0217

with electric switches or sensors not for gear or range selection, e.g. for controlling auxiliary devices for gear selection F16H59/044; for range selection F16H59/105

F16H2059/0221

for selecting modes, i.e. input device for selecting between different modes with range selector F16H2059/082; for conjoint control B60W30/182

F16H2059/0226

for selecting particular shift speeds, e.g. a fast shift speed with aggressive gear change

F16H2059/023

Selectors for gearings using voice control for vehicle control B60R16/0373

F16H2059/0234

Selectors for gearings using foot control

F16H2059/0239

Up- and down-shift or range or mode selection by repeated movement mechanical step by step selection devices F16H63/14

F16H2059/0243

with push buttons, e.g. shift buttons arranged on steering wheel range selection with push buttons F16H59/12

F16H2059/0247

with lever or paddle behind steering wheel

F16H2059/0252

with means for initiating skip or double gear shifts, e.g. by moving selection lever beyond a threshold

F16H2059/0256

Levers for forward-reverse selection only, e.g. for working machines having a separate lever for switching between forward and reverse mode

F16H2059/026

Details or special features of the selector casing or lever support for mechanical gear shifting F16H59/042

F16H2059/0265

Selector lever support with pivot axis offset, e.g. support by four bar linkage to create pivoting centre outside the mechanism

F16H2059/0269

Ball joints or spherical bearings for supporting the lever

F16H2059/0273

Cardan or gimbal type joints for supporting the lever

F16H59/0278

Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing

F16H2059/0282

Lever handles with lock mechanisms, e.g. for allowing selection of reverse gear or releasing lever from park position

F16H2059/0286

with range or splitter selector on selector lever

F16H2059/0291

comprising safety means for preventing injuries in case of accidents

F16H2059/0295

with mechanisms to return lever to neutral or datum position, e.g. by return springs

F16H59/04

Ratio selector apparatus

F16H59/041

consisting of a final output mechanism, e.g. ratio selector being directly linked to a shiftfork

F16H59/042

comprising a final actuating mechanism multiple final output mechanism in a gearbox F16H63/08

F16H59/044

consisting of electrical switches or sensors range selectors with electric switches or sensors F16H59/105

F16H59/045

consisting of fluid valves

F16H2059/047

with essentially straight linear movement for gear selection, e.g. straight selection movement using detent mechanism for improving feeling up-down shift by repeated movements F16H2059/0239

F16H2059/048

with means for unlocking select or shift movement to allow access to reverse gear position particular details of the lever handle F16H2059/0282

F16H59/06

the ratio being infinitely variable

F16H2059/065

Inching pedals for setting the ratio of an hydrostatic transmission

F16H59/08

Range selector apparatus

F16H2059/081

using knops or discs for rotary range selection

F16H2059/082

with different modes

F16H2059/083

Overdrive or overdrive cut-off

F16H2059/084

Economy mode

F16H2059/085

Power mode

F16H2059/086

Adaptive mode, e.g. learning from the driver

F16H2059/087

Winter mode, e.g. to start on snow or slippery surfaces

F16H2059/088

Fast forward-reverse-sequence mode

F16H59/10

comprising levers

F16H59/105

consisting of electrical switches or sensors

F16H59/12

comprising push button devices

F16H59/14

Inputs being a function of torque or torque demand

F16H59/141

of rate of change of torque or torque demand

F16H2059/142

of driving resistance calculated from weight, slope, or the like

F16H2059/144

characterised by change between positive and negative drive line torque, e.g. torque changes when switching between coasting and acceleration

F16H2059/145

being a function of power demand of auxiliary devices

F16H2059/147

Transmission input torque, e.g. measured or estimated engine torque

F16H2059/148

Transmission output torque, e.g. measured or estimated torque at output drive shaft

F16H59/16

Dynamometric measurement of torque

F16H59/18

dependent on the position of the accelerator pedal

F16H2059/183

Rate of change of accelerator position, i.e. pedal or throttle change gradient

F16H2059/186

Coasting

F16H59/20

Kickdown

F16H59/22

Idle position

F16H59/24

dependent on the throttle opening

F16H59/26

dependent on pressure

F16H59/28

Gasifier pressure in gas turbines

F16H59/30

Intake manifold vacuum

F16H59/32

Supercharger pressure in internal combustion engines

F16H59/34

dependent on fuel feed

F16H59/36

Inputs being a function of speed

F16H2059/363

Rate of change of input shaft speed, e.g. of engine or motor shaft

F16H2059/366

Engine or motor speed

F16H59/38

of gearing elements

F16H2059/385

Turbine speed

F16H59/40

Output shaft speed

F16H2059/405

Rate of change of output shaft speed or vehicle speed

F16H59/42

Input shaft speed

F16H2059/425

Rate of change of input or turbine shaft speed

F16H59/44

dependent on machine speed of the machine,

e.g. the vehicle

F16H2059/443

Detecting travel direction, e.g. the forward or reverse movement of the vehicle

F16H2059/446

Detecting vehicle stop, i.e. the vehicle is at stand still, e.g. for engaging parking lock

F16H59/46

dependent on a comparison between speeds

F16H2059/462

Detecting synchronisation, i.e. speed difference is approaching zero

F16H2059/465

Detecting slip, e.g. clutch slip ratio

F16H2059/467

of torque converter

F16H59/48

Inputs being a function of acceleration

F16H59/50

Inputs being a function of the status of the machine, e.g. position of doors or safety belts

F16H2059/503

Axle-load distribution

F16H2059/506

Wheel slip

F16H59/52

dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus

F16H2059/525

the machine undergoing additional towing load, e.g. by towing a trailer

F16H59/54

dependent on signals from the brakes, e.g. parking brakes

F16H59/56

dependent on signals from the main clutch

F16H59/58

dependent on signals from the steering

F16H59/60

Inputs being a function of ambient conditions

F16H2059/605

Traffic stagnation information, e.g. traffic jams

F16H59/62

Atmospheric pressure

F16H59/64

Atmospheric temperature

F16H59/66

Road conditions, e.g. slope, slippery

F16H2059/663

Road slope

F16H2059/666

Determining road conditions by using vehicle location or position, e.g. from global navigation systems [GPS]

F16H59/68

Inputs being a function of gearing status

F16H2059/6807

Status of gear-change operation, e.g. clutch fully engaged

F16H2059/6815

Post shift value of gearing, i.e. calculated or estimated parameters after shift is completed, e.g. estimated output torque after shift is performed

F16H2059/6823

Sensing neutral state of the transmission

F16H2059/683

Sensing pressure in control systems or in fluid controlled devices, e.g. by pressure sensors for hydrostatic transmissions F16H2059/6861

F16H2059/6838

Sensing gearing status of hydrostatic transmissions

F16H2059/6846

the flow in hydrostatic transmissions circuits, e.g. high, low or differential pressures

F16H2059/6853

the state of the transmission units, i.e. motor or pump capacity, e.g. for controlled shifting of range gear

F16H2059/6861

the pressures, e.g. high, low or differential pressures

F16H2059/6869

the pump speed

F16H2059/6876

the motor speed

F16H2059/6884

Sensing or calculating the pump torque

F16H2059/6892

Sensing or calculating the motor torque

F16H59/70

dependent on the ratio established

F16H2059/702

Rate of change of gear ratio, e.g. for triggering clutch engagement

F16H2059/704

Monitoring gear ratio in CVT's

F16H2059/706

Monitoring gear ratio in stepped transmissions, e.g. by calculating the ratio from input and output speed

F16H2059/708

Sensing reverse gear, e.g. by a reverse gear switch

F16H59/72

dependent on oil characteristics, e.g. temperature, viscosity

F16H2059/725

Sensing or calculating temperature of friction devices, e.g. clutches to prevent overheating of friction linings

F16H59/74

Inputs being a function of engine parameters F16H59/14 takes precedence

F16H2059/743

using engine performance or power for control of gearing transmission input torque F16H2059/147

F16H2059/746

Engine running state, e.g. on-off of ignition switch

F16H59/76

Number of cylinders operating

F16H59/78

Temperature

F16H61/00

Control functions within

control units of

change-speed- or reversing-gearings for conveying rotary motion

; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing

F16H61/0003

Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox

F16H61/0006

Electronic control units for transmission control, e.g. connectors, casings or circuit boards

F16H61/0009

Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units

F16H2061/0012

Transmission control for optimising power output of driveline

F16H2061/0015

Transmission control for optimising fuel consumptions

F16H2061/0018

Transmission control for optimising exhaust emissions

F16H61/0021

Generation or control of line pressure

F16H61/0025

Supply of control fluid; Pumps therefore

F16H61/0028

using a single pump driven by different power sources

F16H61/0031

using auxiliary pumps, e.g. pump driven by a different power source than the engine

F16H2061/0034

Accumulators for fluid pressure supply; Control thereof

F16H2061/0037

characterised by controlled fluid supply to lubrication circuits of the gearing see also lubrication control F16H57/0446

F16H2061/004

Venting trapped air from hydraulic systems venting of hydrostatic transmissions F16H61/4174; deaeration or removal of unsolved gas F15B21/044

F16H2061/0043

Cleaning of hydraulic parts, e.g. removal of an orifice clogging

F16H2061/0046

Details of fluid supply channels, e.g. within shafts, for supplying friction devices or transmission actuators with control fluid

F16H2061/005

Supply of electric power, e.g. batteries for back up supply

F16H2061/0053

Initializing the parameters of the controller

F16H2061/0056

Powering down of the controller

F16H61/0059

Braking of gear output shaft using simultaneous engagement of friction devices applied for different gear ratios

F16H2061/0062

Modifying an existing transmission control from a manufacturer for improvement or adaptation, e.g. by replacing a valve or an electric part

F16H2061/0065

Modifying or tuning an existing transmission control for racing, e.g. adaptation of valves for very fast shifting

F16H2061/0068

Method or means for testing of transmission controls or parts thereof

F16H2061/0071

Robots or simulators for testing control functions in automatic transmission testing of transmissions G01M13/02

F16H2061/0075

characterised by a particular control method

F16H2061/0078

Linear control, e.g. PID, state feedback or Kalman

F16H2061/0081

Fuzzy logic

F16H2061/0084

Neural networks

F16H2061/0087

Adaptive control, e.g. the control parameters adapted by learning

F16H2061/009

using formulas or mathematic relations for calculating parameters

F16H2061/0093

using models to estimate the state of the controlled object

F16H2061/0096

using a parameter map

F16H61/02

characterised by the signals used

for shift actuators F16H61/28, for continuously variable gearings F16H61/66

Control units where gearshift is controlled by an electric circuit, are classified in F16H61/0202

Control units where gearshift is controlled by hydraulic signals and a subfunction, e.g. kickdown, is controlled by an electric circuit, are classified in F16H61/0262 with indexing of the electric features

F16H61/0202

the signals being electric F16H61/04 takes precedence

F16H61/0204

for gearshift control, e.g. control functions for performing shifting or generation of shift signal

F16H61/0206

Layout of electro-hydraulic control circuits, e.g. arrangement of valves for control of actuators selecting and moving final output members, e.g. shift forks F16H61/2807

F16H2061/0209

with independent solenoid valves modulating the pressure individually for each clutch or brake

F16H61/0211

characterised by low integration or small number of valves

F16H61/0213

characterised by the method for generating shift signals

F16H2061/0216

Calculation or estimation of post shift values for different gear ratios, e.g. by using engine performance tables

F16H2061/0218

Calculation or estimation of the available ratio range, i.e. possible gear ratios, e.g. for prompting a driver with a display

F16H2061/022

Calculation or estimation of optimal gear ratio, e.g. best ratio for economy drive or performance according driver preference, or to optimise exhaust emissions

F16H2061/0223

Generating of new shift maps, i.e. methods for determining shift points for a schedule by taking into account driveline and vehicle conditions

F16H2061/0225

Modifying of shift maps by manual control, e.g. by learning values from the driver during manual shift mode

F16H2061/0227

Shift map selection, i.e. methods for controlling selection between different shift maps, e.g. to initiate switch to a map for up-hill driving

F16H2061/023

Drive-off gear selection, i.e. optimising gear ratio for drive off of a vehicle

F16H2061/0232

Selecting ratios for bringing engine into a particular state, e.g. for fast warming up or for reducing exhaust emissions

F16H2061/0234

Adapting the ratios to special vehicle conditions

F16H2061/0237

Selecting ratios for providing engine braking

F16H2061/0239

Selecting ratios for preventing or cancelling wheel slip

F16H2061/0241

Adapting the ratio to special transmission conditions, e.g. shifts during warming up phase of transmission when fluid viscosity is high

F16H2061/0244

Adapting the automatic ratio to direct driver requests, e.g. manual shift signals or kick down

F16H61/0246

characterised by initiating reverse gearshift

F16H61/0248

Control units where shifting is directly initiated by the driver, e.g. semi-automatic transmissions generation of movements for final actuating mechanisms F16H61/28

F16H61/0251

Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals

F16H2061/0253

Details of electro hydraulic valves, e.g. lands, ports, spools or springs

F16H2061/0255

Solenoid valve using PWM or duty-cycle control

F16H2061/0258

Proportional solenoid valve

F16H2061/026

On-off solenoid valve

F16H61/0262

the signals being hydraulic F16H61/04 takes precedence

F16H61/0265

for gearshift control, e.g. control functions for performing shifting or generation of shift signals

F16H61/0267

Layout of hydraulic control circuits, e.g. arrangement of valves for control of actuators selecting and moving final output members, e.g. shift forks F16H61/30

F16H61/0269

characterised by low integration or small number of valves

F16H61/0272

characterised by initiating reverse gearshift

F16H61/0274

Control units where shifting is directly initiated by the driver, e.g. semi-automatic transmissions generation of movements for final actuating mechanisms F16H61/28

F16H61/0276

Elements specially adapted for hydraulic control units, e.g. valves

F16H2061/0279

Details of hydraulic valves, e.g. lands, ports, spools or springs

F16H2061/0281

Rotary shift valves, e.g. with a rotary moveable spool for supply of fluid to different channels

F16H61/0283

Governor valves

F16H61/0286

Manual valves

F16H2061/0288

Relay valve, e.g. valve arranged between shift valve and servo

F16H61/029

Throttle valves

F16H61/0293

the signals being purely mechanical

F16H61/0295

Automatic gear shift control, e.g. initiating shift by centrifugal forces

F16H61/0297

Gear shift control where shifting is directly initiated by the driver, e.g. semi-automatic transmissions

F16H61/04

Smoothing ratio shift

F16H61/0403

Synchronisation before shifting

F16H2061/0407

by control of clutch in parallel torque path

F16H2061/0411

by control of shaft brakes

F16H2061/0414

by retarder control

F16H2061/0418

by using different synchronisation devices simultaneously, e.g. for faster synchronisation

F16H2061/0422

by an electric machine, e.g. by accelerating or braking the input shaft

F16H2061/0425

Bridging torque interruption

F16H2061/0429

by torque supply with a clutch in parallel torque path

F16H2061/0433

by torque supply with an electric motor

F16H61/0437

by using electrical signals F16H61/0403 and F16H61/061 take precedence

F16H2061/044

when a freewheel device is disengaged or bridged

F16H2061/0444

during fast shifting over two gearsteps, e.g. jumping from fourth to second gear

F16H2061/0448

using a particular sequence of gear ratios or friction members

F16H2061/0451

during swap-shifts, i.e. gear shifts between different planetary units, e.g. with double transitions shift involving three or more friction members

F16H2061/0455

during shifts involving three or more shift members, e.g. release of 3-4 clutch, 2-4 brake and apply of forward clutch C1

F16H2061/0459

using map for shift parameters, e.g. shift time, slip or pressure gradient, for performing controlled shift transition and adapting shift parameters by learning

F16H2061/0462

by controlling slip rate during gear shift transition

F16H2061/0466

Smoothing shift shock by apply or release of band brake servos, e.g. overlap control of band brake and a clutch or vice versa

F16H2061/047

by preventing or solving a tooth butt situation upon engagement failure due to misalignment of teeth

F16H2061/0474

by smoothing engagement or release of positive clutches; Methods or means for shock free engagement of dog clutches for tooth butt situations F16H2061/047

F16H2061/0477

by suppression of excessive engine flare or turbine racing during shift transition engine flare caused by lock-up release F16H61/143

F16H2061/0481

during range shift from drive (D) or reverse (R) to neutral (N)

F16H2061/0485

during range shift from neutral (N) to reverse (R)

F16H2061/0488

during range shift from neutral (N) to drive (D)

F16H2061/0492

for high engine torque, e.g. during acceleration or uphill driving

F16H2061/0496

for low engine torque, e.g. during coasting, sailing or engine braking

F16H61/06

by controlling rate of change of fluid pressure

F16H61/061

using electric control means

F16H2061/062

for controlling filling of clutches or brake servos, e.g. fill time, fill level or pressure during filling

F16H2061/064

for calibration of pressure levels for friction members, e.g. by monitoring the speed change of transmission shafts

F16H61/065

using fluid control means

F16H61/067

using an accumulator

F16H61/068

using an orifice control valve F16H61/067 takes precedence

F16H61/08

Timing control

F16H2061/085

Timing of auxiliary gear shifts

F16H61/10

Controlling shift hysteresis

F16H61/12

Detecting malfunction or potential malfunction, e.g. fail safe in control of hydrostatic gearing F16H61/4192

Circumventing or fixing failures

F16H2061/1204

for malfunction caused by simultaneous engagement of different ratios resulting in transmission lock state or tie-up condition lock state for braking F16H61/0059

F16H2061/1208

with diagnostic check cycles; Monitoring of failures

F16H2061/1212

Plausibility checks; Counting means for repeated failures

F16H2061/1216

Display or indication of detected failures

F16H2061/122

Avoiding failures by using redundant parts

F16H2061/1224

Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts

F16H2061/1228

Fixing failures by repairing failed parts, e.g. loosening a sticking valve

F16H2061/1232

Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios

F16H2061/1236

using fail priority valves

F16H2061/124

Limiting the input power, torque or speed

F16H2061/1244

Keeping the current state

F16H2061/1248

Resuming normal operation

F16H2061/1252

Fail safe valves fail priority valves F16H2061/1236

F16H2061/1256

characterised by the parts or units where malfunctioning was assumed or detected

F16H2061/126

the failing part is the controller

F16H2061/1264

Hydraulic parts of the controller, e.g. a sticking valve or clogged channel

F16H2061/1268

Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor

F16H2061/1272

the failing part is a part of the final output mechanism, e.g. shift rods or forks

F16H2061/1276

the failing part is a friction device, e.g. clutches or brakes

F16H2061/128

the main clutch

F16H2061/1284

the failing part is a sensor

F16H2061/1288

the failing part is an actuator

F16H2061/1292

the failing part is the power supply, e.g. the electric power supply

F16H2061/1296

the failing part is an electric machine forming part of the transmission

F16H61/14

Control of torque converter lock-up clutches

F16H61/141

using means only actuated by centrifugal force

F16H61/142

the means being hydraulic valves

F16H61/143

using electric control means

F16H2061/145

for controlling slip, e.g. approaching target slip value

F16H2061/146

for smoothing gear shift shock

F16H2061/147

during engine braking, e.g. to attenuate gear clunk when torque direction is changed

F16H61/148

using mechanical control means

F16H61/16

Inhibiting

or initiating

shift during unfavourable conditions,

e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed unintentional control input F16H61/18

F16H2061/161

by checking feasibility of shifts, i.e. determine if requested shift can be successfully completed and post shift values are in an acceptable range

F16H2061/163

Holding the gear for delaying gear shifts under unfavorable conditions, e.g. during cornering

F16H2061/165

Preventing reverse gear shifts if vehicle speed is too high for safe shifting

F16H2061/166

Preventing or initiating shifts for preventing stall or overspeed of engine

F16H2061/168

Forced shifts into neutral for safety reasons, e.g. in case of transmission failure or emergency braking

F16H61/18

Preventing unintentional or unsafe shift

, e.g. preventing manual shift from highest gear to reverse gear

F16H2061/185

Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear

F16H61/20

Preventing gear creeping

; Transmission control during standstill, e.g. hill hold control

F16H2061/202

Active creep control for slow driving, e.g. by controlling clutch slip

F16H2061/205

Hill hold control, e.g. with torque converter or a friction device slightly engaged to keep vehicle stationary

F16H2061/207

by neutral control

F16H61/21

Providing engine brake control

F16H2061/213

for emergency braking, e.g. for increasing brake power in emergency situations

F16H2061/216

by using exhaust brakes

F16H61/22

Locking

of the control input devices

constructional features of locking or disabling mechanisms F16H63/34

F16H2061/223

Electrical gear shift lock, e.g. locking of lever in park or neutral position by electric means if brake is not applied; Key interlock, i.e. locking the key if lever is not in park position

F16H2061/226

Manual distress release of the locking means for shift levers, e.g. to allow towing of vehicle in case of breakdown for parking locks F16H63/3491

F16H61/24

Providing feel, e.g. to enable selection

F16H2061/241

Actuators providing feel or simulating a shift gate, i.e. with active force generation for providing counter forces for feed back

F16H2061/242

Mechanical shift gates or similar guiding means during selection and shifting

F16H2061/243

Cams or detent arrays for guiding and providing feel

F16H2061/245

Ramp contours for generating force threshold, e.g. cams or pushers for generating additional resistance for a reverse path

F16H2061/246

Additional mass or weight on shift linkage for improving feel

F16H2061/247

Detents for range selectors

F16H2061/248

with audible signals for providing selection or shift feed back

F16H61/26

Generation or transmission of movements for final actuating mechanisms

The generation or transmission of movements comprising only the selector apparatus, is classified in group F16H59/00.

The generation or transmission of movements, when part of the final output mechanisms, is classified in group F16H63/00.

F16H61/28

with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted

F16H61/2807

using electric control signals for shift actuators, e.g. electro-hydraulic control therefor F16H61/30, F16H61/32 take precedence; methods for generating shift signals F16H61/0213

F16H61/2815

with a control using only relays and switches

F16H2061/2823

Controlling actuator force way characteristic, i.e. controlling force or movement depending on the actuator position, e.g. for adapting force to synchronisation and engagement of gear clutch

F16H2061/283

Adjustment or calibration of actuator positions, e.g. neutral position

F16H2061/2838

Arrangements with single drive motor for selecting and shifting movements, i.e. one motor used for generating both movements

F16H2061/2846

Arrangements of actuators for enabling jump shifting for skipping of gear ratios

F16H2061/2853

Electromagnetic solenoids

F16H2061/2861

Linear motors

F16H2061/2869

Cam or crank gearing

F16H2061/2876

Racks

F16H2061/2884

Screw-nut devices

F16H2061/2892

other gears, e.g. worm gears, for transmitting rotary motion to the output mechanism

F16H61/30

Hydraulic

or pneumatic

motors

or related fluid control means

therefor

F16H2061/301

for power assistance, i.e. servos with follow up action

F16H2061/302

with variable force amplification, e.g. force is depending on selected gear or on actuator force (non-linear amplification)

F16H2061/304

using telemotors, i.e. systems with master cylinder and linked shift actuator without external pressure source

F16H2061/305

Accumulators for fluid supply to the servo motors, or control thereof

F16H2061/307

Actuators with three or more defined positions, e.g. three position servos

F16H2061/308

Modular hydraulic shift units, i.e. preassembled actuator units for select and shift movements adapted for being mounted on transmission casing

F16H61/32

Electric motors

actuators or related electrical control means

therefor

F16H2061/323

for power assistance, i.e. servos with follow up action

F16H2061/326

Actuators for range selection, i.e. actuators for controlling the range selector or the manual range valve in the transmission

F16H61/34

comprising two mechanisms, one for the preselection movement, and one for the shifting movement F16H61/36 takes precedence

F16H61/36

with at least one movement being transmitted by a cable

F16H61/38

Control of exclusively fluid gearing

F16H61/40

hydrostatic

F16H61/4008

Control of circuit pressure

F16H61/4017

Control of high pressure, e.g. avoiding excess pressure by a relief valve

F16H61/4026

Control of low pressure

F16H61/4035

Control of circuit flow

F16H61/4043

Control of a bypass valve

F16H61/4052

by using a variable restriction, e.g. an orifice valve

F16H61/4061

Control related to directional control valves, e.g. change-over valves, for crossing the feeding conduits

F16H61/4069

Valves related to the control of neutral, e.g. shut off valves

F16H61/4078

Fluid exchange between hydrostatic circuits and external sources or consumers

F16H61/4096

with pressure accumulators

F16H61/4104

Flushing, e.g. by using flushing valves or by connection to exhaust

F16H61/4131

Fluid exchange by aspiration from reservoirs, e.g. sump

F16H61/4139

Replenishing or scavenging pumps, e.g. auxiliary charge pumps

F16H61/4148

Open loop circuits

F16H61/4157

Control of braking, e.g. preventing pump over-speeding when motor acts as a pump

F16H61/4165

Control of cooling or lubricating

F16H61/4174

Control of venting, e.g. removing trapped air

F16H61/4183

Preventing or reducing vibrations or noise, e.g. avoiding cavitations

F16H61/4192

Detecting malfunction or potential malfunction, e.g. fail safe

F16H61/42

involving adjustment of a pump or motor with adjustable output or capacity

F16H61/46 takes precedence

F16H61/421

Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves

F16H61/423

Motor capacity control by fluid pressure control means

F16H61/425

Motor capacity control by electric actuators

F16H61/427

Motor capacity control by mechanical control means, e.g. by levers or pedals

F16H61/431

Pump capacity control by electro-hydraulic control means, e.g. using solenoid valves

F16H61/433

Pump capacity control by fluid pressure control means

F16H61/435

Pump capacity control by electric actuators

F16H61/437

Pump capacity control by mechanical control means, e.g. by levers or pedals

F16H61/438

Control of forward-reverse switching, e.g. control of the swash plate causing discharge in two directions

F16H61/439

Control of the neutral position, e.g. by zero tilt rotation holding means

F16H61/44

with more than one pump or motor in operation

F16H61/444

by changing the number of pump or motor units in operation

F16H61/448

Control circuits for tandem pumps or motors

F16H61/452

Selectively controlling multiple pumps or motors, e.g. switching between series or parallel

F16H61/456

Control of the balance of torque or speed between pumps or motors

F16H61/46

Automatic regulation in accordance with output requirements

F16H61/461

not involving a variation of the output capacity of the main pumps or motors

F16H61/462

for achieving a target speed ratio

F16H61/465

for achieving a target input speed

F16H61/468

for achieving a target input torque

F16H61/47

for achieving a target output speed

F16H61/472

for achieving a target output torque

F16H61/475

for achieving a target power, e.g. input power or output power

F16H61/478

for preventing overload, e.g. high pressure limitation

F16H61/48

hydrodynamic

F16H61/50

controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit

F16H61/52

by altering the position of blades

F16H61/54

by means of axially-shiftable blade runners

F16H61/56

to change the blade angle

F16H61/58

by change of the mechanical connection of, or between, the runners

F16H61/60

exclusively by the use of freewheel clutches

F16H61/62

involving use of a speed-changing gearing or of a clutch in the connection between runners F16H61/60 takes precedence; combinations of fluid gearings for conveying rotary motion with mechanical clutches for bridging a fluid gearing of the hydrokinetic type F16H45/02

F16H61/64

controlled by changing the amount of liquid in the working circuit

F16H61/66

specially adapted for continuously variable gearings control of exclusively fluid gearing F16H61/38

F16H2061/6601

with arrangements for dividing torque and shifting between different ranges

F16H2061/6602

with at least two dynamo-electric machines for creating an electric power path inside the transmission device, e.g. using generator and motor for a variable power torque path

F16H2061/6603

characterised by changing ratio in the mechanical gearing

F16H2061/6604

Special control features generally applicable to continuously variable gearings

F16H2061/6605

Control for completing downshift at hard braking

F16H2061/6607

Controls concerning lubrication or cooling lubrication features of friction gearings F16H57/0487

F16H2061/6608

Control of clutches, or brakes for forward-reverse shift

F16H2061/6609

Control of clutches or brakes in torque split transmissions

F16H2061/661

Conjoint control of CVT and drive clutch

F16H2061/6611

Control to achieve a particular driver perception, e.g. for generating a shift shock sensation

F16H2061/6612

for engine braking

F16H2061/6614

Control of ratio during dual or multiple pass shifting for enlarged ration coverage

F16H2061/6615

Imitating a stepped transmissions

F16H2061/6616

the shifting of the transmission being manually controlled

F16H2061/6617

Manual control of CVTs while continuously varying the ratio

F16H2061/6618

Protecting CVTs against overload by limiting clutch capacity, e.g. torque fuse

F16H61/662

with endless flexible members

F16H2061/66204

Control for modifying the ratio control characteristic

F16H2061/66209

dependent on ambient conditions

F16H2061/66213

dependent on driver's choice

F16H2061/66218

dependent on control input parameters other than ambient conditions or driver's choice

F16H2061/66222

the ratio is varied in order to reduce surface wear of belt or pulley

F16H61/66227

controlling shifting exclusively as a function of speed and torque

F16H61/66231

controlling shifting exclusively as a function of speed

F16H61/66236

using electrical or electronical sensing or control means

F16H61/6624

using only hydraulical and mechanical sensing or control means

F16H61/66245

using purely mechanical sensing or control means

F16H61/6625

controlling shifting exclusively as a function of torque

F16H61/66254

controlling of shifting being influenced by a signal derived from the engine and the main coupling

F16H61/66259

using electrical or electronical sensing or control means

F16H61/66263

using only hydraulical and mechanical sensing or control means

F16H61/66268

using purely mechanical sensing or control means

F16H61/66272

characterised by means for controlling the torque transmitting capability of the gearing

F16H2061/66277

by optimising the clamping force exerted on the endless flexible member

F16H2061/66281

by increasing the line pressure at the occurrence of input torque peak

F16H2061/66286

Control for optimising pump efficiency

F16H2061/6629

Detection of slip for determining level of wear

F16H2061/66295

F16H61/664

Friction gearings

F16H2061/6641

Control for modifying the ratio control characteristic

F16H2061/6642

dependent on ambient conditions

F16H2061/6643

dependent on driver's choice

F16H2061/6644

dependent on control input parameters other than ambient conditions or driver's choice

F16H61/6645

controlling shifting exclusively as a function of speed and torque

F16H61/6646

controlling shifting exclusively as a function of speed

F16H61/6647

controlling shifting exclusively as a function of torque

F16H61/6648

controlling of shifting being influenced by a signal derived from the engine and the main coupling

F16H61/6649

characterised by the means for controlling the torque transmitting capability of the gearing

F16H61/68

specially adapted for stepped gearings

F16H61/682

with interruption of drive

F16H61/684

without interruption of drive

F16H61/686

with orbital gears

F16H61/688

with two inputs, e.g. selection of one of two torque-flow paths by clutches

F16H61/70

specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements

F16H61/702

using electric or electrohydraulic control means

F16H61/705

using hydraulic and mechanical control means

F16H61/707

using only mechanical control means

F16H63/00

Control outputs

from the control unit

to change-speed- or reversing-gearings for conveying rotary motion

or to other devices than the final output mechanism

F16H2063/005

Preassembled gear shift units for mounting on gear case for hydraulic shift units F16H2061/308

F16H63/02

Final output mechanisms therefor

Actuating means for the final output mechanisms

F16H2063/025

Final output mechanisms for double clutch transmissions

F16H63/04

a single final output mechanism being moved by a single final actuating mechanism

constructional features of the final output mechanisms F16H63/30

F16H63/06

the final output mechanism having an indefinite number of positions

F16H63/062

electric or electro-mechanical actuating means

F16H63/065

hydraulic actuating means

F16H63/067

mechanical actuating means

F16H63/08

Multiple final output mechanisms being moved by a single common final actuating mechanism

constructional features of the final output mechanisms F16H63/30

F16H63/10

the final actuating mechanism having a series of independent ways of movement, each way of movement being associated with only one final output mechanism

F16H63/12

two or more ways of movement occurring simultaneously

F16H63/14

the final output mechanisms being successively actuated by repeated movement of the final actuating mechanism

F16H63/16

the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism

F16H63/18

the final actuating mechanism comprising cams

F16H63/20

with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate

F16H2063/202

using cam plates for selection or shifting, e.g. shift plates with recesses or groves moved by a selector extension

F16H2063/204

the gear shift lever being the immediate final actuating mechanism, e.g. the shift finger being a part of the gear shift lever

F16H63/206

the final output mechanisms being mounted coaxially on a single shaft, e.g. mono rail shift mechanism

F16H2063/208

using two or more selecting fingers

F16H63/22

the final output mechanisms being simultaneously moved by the final actuating mechanism

F16H63/24

each of the final output mechanisms being moved by only one of the various final actuating mechanisms

constructional features of the final output mechanisms F16H63/30

F16H63/26

some of the movements of the final output mechanisms being caused by another final output mechanism

F16H63/28

two or more final actuating mechanisms moving the same final output mechanism

constructional features of the final output mechanisms F16H63/30

F16H63/285

with a first final actuating member applying a force to two or more final output members and a second final actuating member locking in position another final output member

F16H63/30

Constructional features of the final output mechanisms

F16H63/3003

Band brake actuating mechanisms

F16H2063/3006

moved by a non-mechanical force

F16H63/3009

the final output mechanisms having elements remote from the gearbox

F16H63/3013

the final output mechanism being characterised by linkages converting movement, e.g. into opposite direction by a pivoting lever linking two shift rods

F16H63/3016

Final output mechanisms varying the leverage or force ratio

F16H63/302

Final output mechanisms for reversing

F16H63/3023

the final output mechanisms comprising elements moved by fluid pressure band brake actuating mechanisms F16H63/3003

F16H63/3026

comprising friction clutches or brakes band brake actuating mechanisms F16H63/3003

F16H2063/303

the friction member is actuated and released by applying pressure to different fluid chambers

F16H2063/3033

the brake is actuated by springs and released by a fluid pressure

F16H2063/3036

the clutch is actuated by springs and released by a fluid pressure

F16H63/304

the final output mechanisms comprising elements moved by electrical or magnetic force band brake actuating mechanisms F16H63/3003

F16H63/3043

comprising friction clutches or brakes

F16H2063/3046

using electromagnetic clutch for coupling gear wheel to shaft friction clutches F16H63/3043

F16H2063/305

using electromagnetic solenoids

F16H2063/3053

using linear motors

F16H2063/3056

using cam or crank gearing

F16H2063/3059

using racks

F16H2063/3063

using screw devices

F16H2063/3066

using worm gears

F16H63/3069

Interrelationship between two or more final output mechanisms interlocking devices F16H63/36

F16H2063/3073

final output mechanisms mounted on a single shaft

F16H2063/3076

Selector shaft assembly, e.g. supporting, assembly or manufacturing of selector or shift shafts; Special details thereof

F16H2063/3079

Shift rod assembly, e.g. supporting, assembly or manufacturing of shift rails or rods; Special details thereof

F16H2063/3083

Shift finger arrangements, e.g. shape or attachment of shift fingers

F16H2063/3086

Shift head arrangements, e.g. forms or arrangements of shift heads for preselection or shifting

F16H2063/3089

Spring assisted shift, e.g. springs for accumulating energy of shift movement and release it when clutch teeth are aligned

F16H2063/3093

Final output elements, i.e. the final elements to establish gear ratio, e.g. dog clutches or other means establishing coupling to shaft fluid actuated clutches F16H63/3026; electromagnetic clutches F16H2063/3046

F16H2063/3096

Sliding keys as final output elements; Details thereof

F16H63/32

Gear shift yokes,

e.g. shift forks

F16H2063/321

characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins

F16H2063/322

characterised by catches or notches for moving the fork

F16H2063/324

characterised by slide shoes, or similar means to transfer shift force to sleeve

F16H2063/325

Rocker or swiveling forks, i.e. the forks are pivoted in the gear case when moving the sleeve

F16H2063/327

essentially made of sheet metal

F16H2063/328

essentially made of plastics, e.g. injection molded

F16H63/34

Locking or disabling mechanisms

F16H63/3408

the locking mechanism being moved by the final actuating mechanism

F16H63/3416

Parking lock mechanisms or brakes in the transmission

F16H63/3425

characterised by pawls or wheels

F16H63/3433

Details of latch mechanisms, e.g. for keeping pawls out of engagement

F16H63/3441

Parking locks engaging axially

F16H63/345

using friction brakes, e.g. a band brakes

F16H63/3458

with electric actuating means, e.g. shift by wire

F16H63/3466

using electric motors

F16H63/3475

using solenoids

F16H63/3483

with hydraulic actuating means

F16H63/3491

Emergency release or engagement of parking locks or brakes

F16H63/36

Interlocking devices

F16H63/38

Detents

spring-loaded ball units for holding levers in a limited number of positions G05G5/065

F16H63/40

comprising signals other than signals for actuating the final output mechanisms

F16H63/42

Ratio indicator devices

F16H2063/423

Range indicators for automatic transmissions, e.g. showing selected range or mode

F16H2063/426

with means for advising the driver for proper shift action, e.g. prompting the driver with allowable selection range of ratios

F16H63/44

Signals to the control unit of auxiliary gearing

F16H63/46

Signals to a clutch outside the gearbox

F16H63/48

Signals to a parking brake

or parking lock; Control of parking locks or brakes being part of the transmission

F16H63/483

Circuits for controlling engagement of parking locks or brakes

F16H63/486

Common control of parking locks or brakes in the transmission and other parking brakes, e.g. wheel brakes

F16H63/50

Signals to an engine or motor

F16H63/502

for smoothing gear shifts

F16H2063/504

for bringing engine into special condition by transmission control, e.g. by changing torque converter characteristic to modify engine set point to higher engine speed for better acceleration performance

F16H2063/506

for engine torque resume after shift transition, e.g. a resume adapted to the driving style

F16H2063/508

for limiting transmission input torque, e.g. to prevent damage of transmission parts

F16H2200/00

Transmissions for multiple ratios

F16H2200/0004

comprising a power take off shaft

F16H2200/0008

specially adapted for front-wheel-driven vehicles

F16H2200/0013

specially adapted for rear-wheel-driven vehicles

F16H2200/0017

specially adapted for four-wheel-driven vehicles

F16H2200/0021

specially adapted for electric vehicles

F16H2200/0026

comprising at least one creep low gear, e.g. additional gear for extra low speed or creeping

F16H2200/003

characterised by the number of forward speeds

F16H2200/0034

the gear ratios comprising two forward speeds

F16H2200/0039

the gear ratios comprising three forward speeds

F16H2200/0043

the gear ratios comprising four forward speeds

F16H2200/0047

the gear ratios comprising five forward speeds

F16H2200/0052

the gear ratios comprising six forward speeds

F16H2200/0056

the gear ratios comprising seven forward speeds

F16H2200/006

the gear ratios comprising eight forward speeds

F16H2200/0065

the gear ratios comprising nine forward speeds

F16H2200/0069

the gear ratios comprising ten forward speeds

F16H2200/0073

the gear ratios comprising eleven forward speeds

F16H2200/0078

the gear ratio comprising twelve or more forward speeds

F16H2200/0082

characterised by the number of reverse speeds

F16H2200/0086

the gear ratios comprising two reverse speeds

F16H2200/0091

the gear ratios comprising three reverse speeds

F16H2200/0095

the gear ratios comprising four reverse speeds

F16H2200/20

Transmissions using gears with orbital motion

F16H2200/2002

characterised by the number of sets of orbital gears

F16H2200/2005

with one sets of orbital gears

F16H2200/2007

with two sets of orbital gears

F16H2200/201

with three sets of orbital gears

F16H2200/2012

with four sets of orbital gears

F16H2200/2015

with five sets of orbital gears

F16H2200/2017

with six sets of orbital gears

F16H2200/202

characterised by the type of Ravigneaux set

F16H2200/2023

using a Ravigneaux set with 4 connections

F16H2200/2025

using a Ravigneaux set with 5 connections

F16H2200/2028

using a Ravigneaux set with 6 connections

F16H2200/203

characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes

F16H2200/2033

with one engaging means

F16H2200/2035

with two engaging means

F16H2200/2038

with three engaging means

F16H2200/2041

with four engaging means

F16H2200/2043

with five engaging means

F16H2200/2046

with six engaging means

F16H2200/2048

with seven engaging means

F16H2200/2051

with eight engaging means

F16H2200/2053

with nine engaging means

F16H2200/2056

with ten engaging means

F16H2200/2058

with eleven engaging means

F16H2200/2061

with twelve engaging means

F16H2200/2064

using at least one positive clutch, e.g. dog clutch

F16H2200/2066

using one freewheel mechanism

F16H2200/2069

using two freewheel mechanism

F16H2200/2071

using three freewheel mechanism

F16H2200/2074

using four freewheel mechanism

F16H2200/2076

using at least five freewheel mechanism

F16H2200/2079

using freewheel type mechanisms, e.g. freewheel clutches

F16H2200/2082

one freewheel mechanisms

F16H2200/2084

two freewheel mechanisms

F16H2200/2087

three freewheel mechanisms

F16H2200/2089

four freewheel mechanisms

F16H2200/2092

at least five freewheel mechanisms

F16H2200/2094

using positive clutches, e.g. dog clutches

F16H2200/2097

comprising an orbital gear set member permanently connected to the housing, e.g. a sun wheel permanently connected to the housing

F16H2300/00

Determining of new ratio

F16H2300/02

Computing a new ratio

F16H2300/14

Selecting a state of operation, e.g. depending on two wheel or four wheel drive mode

F16H2300/18

Determining the range

F16H2302/00

Determining the way or trajectory to new ratio, e.g. by determining speed, torque or time parameters for shift transition

F16H2302/02

Optimizing the way to the new ratio

F16H2302/04

Determining a modus for shifting selection of shift speed modus F16H2059/0226

F16H2302/06

Determining timing parameters of shifting, e.g. start of shifting for smoothing gear shift F16H61/08

F16H2306/00

Shifting

F16H2306/14

Skipping gear shift for smoothing gear shift F16H2061/0444

F16H2306/18

Preparing coupling or engaging of future gear

F16H2306/20

Timing of gear shifts for smoothing gear shift F16H61/08

F16H2306/21

for auxiliary gear shifts for smoothing auxiliary gear shifts F16H2061/085

F16H2306/22

Swap shifting for smoothing gear shift F16H2061/0451

F16H2306/24

Interruption of shift, e.g. if new shift is initiated during ongoing previous shift

F16H2306/30

characterised by the way or trajectory to a new ratio, e.g. by performing shift according to a particular algorithm or function determining the way or trajectory to a new ratio F16H2302/00

F16H2306/32

Preparing the opening or release of the torque transmitting element

F16H2306/36

Filling the dead volume of actuators controlling filling of clutches or brake servos F16H61/62

F16H2306/40

Shifting activities

F16H2306/42

Changing the input torque to the transmission

F16H2306/44

Removing torque from current gears

F16H2306/46

Uncoupling of current gear

F16H2306/48

Synchronising of new gear

F16H2306/50

Coupling of new gear

F16H2306/52

Applying torque to new gears

F16H2306/54

Synchronizing engine speed to transmission input speed

F16H2312/00

Driving activities

F16H2312/02

Driving off

F16H2312/022

Preparing to drive off

F16H2312/04

Holding or hillholding

F16H2312/06

Creeping

F16H2312/08

Rocking

F16H2312/09

Switching between forward and reverse rocking F16H2312/08

F16H2312/10

Inching

F16H2312/12

Parking

F16H2312/14

Going to, or coming from standby operation, e.g. for engine start-stop operation at traffic lights

F16H2312/16

Coming to a halt

F16H2312/18

Strong or emergency braking

F16H2312/20

Start-up or shut-down

F16H2342/00

Calibrating

F16H2342/02

Calibrating shift or range movements

F16H2342/04

Calibrating engagement of friction elements

F16H2342/042

Point of engagement

F16H2342/044

Torque transmitting capability

F16H2342/06

Determining which part to calibrate or timing of calibrations

F16H2342/10

Calibrating valves

F16H2700/00

Transmission housings and mounting of transmission components therein

Cooling

Lubrication

Flexible suspensions, e.g. floating frames

F16H2700/02

Transmissions, specially for working vehicles

F16H2700/04

Starting devices or devices to start turning of shafts

F16H2700/06

Protections for shifting mechanical transmissions

F16H2702/00

Combinations of two or more transmissions

F16H2702/02

Mechanical transmissions with planetary gearing combined with one or more other mechanical transmissions

F16H2702/04

Combinations of a speed-change mechanism without planetary gearing with a differential for driving a vehicle drive axle

F16H2702/06

Combinations of transmissions with parallel force splitting paths having same output

F16H2704/00

Control mechanisms and elements applying a mechanical movement

F16H2704/02

Speed-change devices wherein the control lever actuates directly sliding gears pivoting around two non-parallel axis

F16H2704/04

Speed-change devices with an intermediary mechanism placed between control member and actuator

F16H2706/00

Rotary transmissions with mechanical energy accumulation and recovery without means for automatic selfregulation essentially based on spring action or inertia

F16H2708/00

Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes

F16H2708/02

only the toothed wheels remain engaged

F16H2708/04

the control being mechanical

F16H2708/06

the control being hydraulic or pneumatic

F16H2708/08

the control being electric

F16H2708/10

only the toothed wheels may be disengaged

F16H2708/12

the control being mechanical

F16H2708/14

the control being hydraulic or pneumatic

F16H2708/16

wherein the gearing is not described or not essential

F16H2708/18

the control being mechanical

F16H2708/20

the control being hydraulic or pneumatic

F16H2708/22

the control being electric

F16H2708/24

with a preselection system, mainly semi-automatic, e.g. with automatic preselection, but controlled at the intended moment, with force amplification

F16H2708/26

only the toothed wheels remain engaged

F16H2708/28

only the toothed wheels may be disengaged

F16H2710/00

Control devices for speed-change mechanisms, the speed change control is dependent on function parameters of the gearing

F16H2710/02

Control dependent on speed and torque, wherein only the toothed wheels remain engaged, control being mechanical

F16H2710/04

Control dependent on speed

F16H2710/06

only the toothed wheels remain engaged

F16H2710/08

the control being mechanical

F16H2710/10

the control being hydraulic or pneumatic

F16H2710/12

the control being electric

F16H2710/14

Control dependent on speed, wherein only the toothed wheels may be disengaged, control being mechanical

F16H2710/16

the gearing is not described or not essential

F16H2710/18

the control being mechanical

F16H2710/20

the control being hydraulic or pneumatic

F16H2710/22

the control being electric

F16H2710/24

Control dependent on torque

F16H2710/26

wherein only the toothed wheels remain engaged, the control being mechanical

F16H2712/00

Mechanisms for changing direction

F16H2712/02

Automatic control, e.g. for an alternating movement

F16H2712/04

the control being hydraulic or pneumatic

F16H2712/06

only with toothed wheels or friction wheels

F16H2712/08

only the toothed wheels may be disengaged

F16H2712/10

with a combination of engaged and disengageable toothed wheels

F16H2714/00

Different types speed-changing mechanisms for toothed gearing

F16H2714/02

only with toothed wheels remaining engaged

F16H2714/04

with specially adapted devices

F16H2716/00

Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices

F16H2716/02

the control being mechanical

F16H2716/04

the control being hydraulic or pneumatic

F16H2716/06

Circuits thereof

F16H2716/08

the control being electric

F16H2716/10

only the toothed wheels may be disengaged, the control being mechanical

F16H2716/12

with preselection system, mainly semi-automatic, e.g. with automatic preselection, but controlled at the intended moment, with force amplification

F16H2716/14

only with toothed wheels remaining engaged

F16H2718/00

Mechanisms for speed-change of planetary gearing, the speed change control being dependent on function parameters of the gearing

F16H2718/02

Control dependent on speed and torque, wherein only the toothed wheels remain engaged

F16H2718/04

the control being mechanical

F16H2718/06

the control being hydraulic or pneumatic

F16H2718/08

Control dependent on speed

F16H2718/10

only the toothed wheels remain engaged

F16H2718/12

the control being mechanical

F16H2718/14

the control being hydraulic or pneumatic

F16H2718/16

the control being electric

F16H2718/18

Control dependent on torque

F16H2718/20

only the toothed wheels remain engaged

F16H2718/22

the control being mechanical

F16H2718/24

the control being hydraulic or pneumatic

F16H2718/26

the control being electric

F16H2720/00

Different types of speed-change gear mechanisms

F16H2720/02

Gears with a non-circular rolling curve or gears with special teeth

F16H2720/04

Combining a planetary speed-change gearing with a motor vehicle drive axle differential