Coupling assembly with reservoir for highly viscous fluid

Details Coupling assembly with reservoir for highly viscous fluid Coupling assembly with reservoir for highly viscous fluid

1997-08-18

1999-03-23

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Automatic

192 57, 192 85AA, 192103F, F16D 250638

Patent

active

058847391

ABSTRACT:
A coupling assembly has a friction coupling with friction plates alternately connected to respective ones of first and second coaxial parts which are rotatable relative to one another. A hydraulic actuating device for actuating the friction coupling has an annular chamber formed in one of the first and second parts. The annular chamber is defined by an axially movable piston which acts on the friction plates and containing a conveyor member for effecting fluid shear. The conveying member is connected to the other of the first and second parts. The annular chamber receives a highly viscous fluid, such that a pressure build up is generated to increase torque transmission between the first and second parts. The annular chamber is connected to a compensating chamber with a variable volume force for the highly viscous fluid. The compensating chamber is formed by an axially open annular groove and an axially movable annular element sealing said annular groove. The annular element includes a plate-spring-like conical end wall and annular sealing elements adjoining the plate-spring-like conical end wall.

REFERENCES:
patent: 4905808 (1990-03-01), Tomita et al.
patent: 5346043 (1994-09-01), Haka
patent: 5526912 (1996-06-01), Gassmann
patent: 5556343 (1996-09-01), Gassmann
patent: 5632185 (1997-05-01), Gassmann
patent: 5690201 (1997-11-01), Gassmann

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