US 5,575,364 A · Apparatus for transmitting force between rotary driving and driven units

Abstract

An apparatus which serves to transmit force between the crankshaft of an internal combustion engine and the input shaft of a variable-speed transmission in a motor vehicle has a hydraulic clutch with one or more pumps, stators and turbines. The casing of the hydraulic clutch is driven by the crankshaft, and the turbine(s) drives or drive a hub which transmits torque to the input shaft. One or more elastic dampers are installed in the casing to permit pronounced angular movements (within preselected limits) of the casing and the hub relative to each other. Each damper comprises energy storing elements, e.g., arcuate coil springs, acting at least in the circumferential direction of the casing. A lock-up clutch can be installed in the casing in series with the damper or dampers.

Claims60

Dependent claims

Hydraulic clutch for transmitting force from a driving unit to a driven unit comprising:

a pump and a turbine being disposed in a clutch casing having a substantially radial wall;
at least one elastic damper having input means driven by said casing and output means;
and
a lock-up clutch receiving torque from said elastic damper output means, said lock-up clutch and said elastic damper being disposed axially between said wall and said turbine, said lock-up clutch receiving torque from said elastic damper output means as it is driven by said casing.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

08/287,233Filed 8 Aug 1994 · division

Priority

DE 41 14 3212 May 1991

Granted

19 Nov 1996

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

F16F 15/13476
Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations: resulting in a staged spring…
F16F 15/13423
Characterised by the dimension or shape of spring-containing windows: disposition of material for damping or avoiding wear
F16H 45/02
Combinations of fluid gearings for conveying rotary motion with couplings or clutches: with mechanical clutches for bridging a fluid gearing of…
F16F 15/129
Using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon: characterised by…

Apparatus for transmitting force between rotary driving and driven units

Life of this patent

Apparatus for transmitting force between rotary driving and driven units

Life of this patent

Abstract

Claims60