192 clutches and power-stop control – Clutches – Automatic
Patent
1998-04-23
1999-10-19
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Automatic
192103F, F16D 43284
Patent
active
059672757
ABSTRACT:
A coupling has two parts supported one inside the other, which are rotatable relative to one another around a common longitudinal axis. Together, the parts form a chamber filled with a highly viscous fluid and which is sealed by an axially movable piston. The coupling also includes a friction coupling with friction elements, having a spring assembly which is supported on a stop part and acting on a pressure plate. When the piston is in a position of rest, the friction elements of the friction coupling are held against a further stop part under pretension generated when the relative rotation begins. In the case of axial displacement, the piston displaces the pressure plate against the force of the spring assembly towards the first stop part, with there being provided an axial gap between the piston in a position of rest and a further stop part which is displaceable towards the first stop part. An axial gap is also provided between the pressure plate and the friction elements on the one hand and the first stop part on the other hand when the piston is in a position of rest.
REFERENCES:
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patent: 4966268 (1990-10-01), Asano
patent: 5526912 (1996-06-01), Gassmann
patent: 5556343 (1996-09-01), Gassmann et al.
patent: 5690201 (1997-11-01), Gassmann
Bonck Rodney H.
GKN Viscodrive GmbH
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