Hydraulic power transmission unit

Details Hydraulic power transmission unit Hydraulic power transmission unit

1996-10-24

1998-06-09

Bonck, Rodney H.

Button making

192212, F16H 4502

Patent

active

057621721

ABSTRACT:
A hydraulic power transmission unit includes a casing connected to an engine, a pump member fixed to the interior of the casing and a turbine mounted within the casing and connected to an output shaft, whereby the output torque of the engine is transmitted to the output shaft through fluid in the casing. A damper mechanism includes damper springs mounted directly on the inner face of the casing at its outer circumference. A damper disc serves to transmit the power of the engine to the output shaft through the damper springs. A lock-up clutch mechanism is also housed within the casing and includes a frictional engagement element arranged between the damper disc and the output shaft. The lock-up clutch mechanism is operated, i.e. frictional engagement element selectively applied and released, by a clutch piston slidably mounted within a cylinder defined by the damper disc.

REFERENCES:
patent: 4002228 (1977-01-01), Borman
patent: 4949822 (1990-08-01), Martin
patent: 5377796 (1995-01-01), Friedmann et al.
patent: 5441135 (1995-08-01), Woner et al.
patent: 5590750 (1997-01-01), Graton et al.
patent: 5662194 (1997-09-01), Jackel
patent: 5669475 (1997-09-01), Matsuoka

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