192 clutches and power-stop control – Clutches – Automatic
Patent
1999-03-12
2000-09-12
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Automatic
192 57, 192 85AA, 192103F, F16D 2502, F16D 250638
Patent
active
061163929
ABSTRACT:
A coupling device for transmitting torque between a first part and a second part which are rotatable relative to one another is disclosed. The coupling device comprises a multi-plate coupling unit with axially alternating arranged first plates and second plates. The first plates are each connected in a rotationally fixed manner to one of the first part or the second part and the second plates are each connected in a rotationally fixed manner to the other of the first part or the second part. The coupling device further comprises an actuating assembly for axially loading the multi-plate coupling unit by means of a setting piston. The multi-plate coupling unit also comprises a first annular chamber filled with a highly viscous fluid and delimited by the setting piston, and a rotational member arranged in the annular chamber. The first annular chamber is formed in one of the first or second parts with the rotational member being connected in a rotationally fixed manner to the other of the first or second part. A relative rotation between the first and second parts causes pressure-loading and displacement of the setting piston towards the multi-plate coupling unit as a result of the shear of the highly viscous fluid in the first annular chamber. A pressure plate is positioned between the setting piston and the multi-plate coupling. The faces of the pressure plate and the setting piston together form a radially outwardly tapering gap in which there are arranged radially freely movable wedge elements in a play-free manner.
REFERENCES:
patent: 3612237 (1971-10-01), Honda
patent: 4664242 (1987-05-01), Downs
patent: 4848506 (1989-07-01), Shimada et al.
patent: 4924991 (1990-05-01), Takeuchi
patent: 5070975 (1991-12-01), Tanaka et al.
patent: 5556343 (1996-09-01), Gassmann et al.
patent: 5884739 (1999-03-01), Constantin
Bonck Rodney H.
Carten Francis N.
GKN Viscodrive GmbH
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