Force transmitting assembly

Details Force transmitting assembly Force transmitting assembly

1998-01-07

2000-11-21

Marmor, Charles A.

192 clutches and power-stop control

Clutches

Progressive engagement

192 85AA, F16D 1106

Patent

active

061489808

ABSTRACT:
A force transmitting assembly is operable between a plurality of engaged conditions and a disengaged condition in which the force transmitting assembly is ineffective to transmit force. The force transmitting assembly includes a primary piston assembly having annular radially inner and outer piston areas against which fluid pressure is applied to vary the magnitude of the force which can be transmitted by the force transmitting assembly. The force transmitting assembly also includes a secondary piston assembly having radially inner and outer piston areas against which fluid pressure is applied to vary the magnitude of the force which can be transmitted by the force transmitting assembly. In one embodiment of the invention, the secondary piston assembly includes two separate pistons. In another embodiment of the embodiment of the invention, the secondary piston assembly includes a single piston having annular radially inner, radially outer, and intermediate piston areas against which fluid pressure is applied.

REFERENCES:
patent: 2890777 (1959-06-01), Weiland
patent: 3537556 (1970-11-01), Pfeffer
patent: 3858698 (1975-01-01), Hause
patent: 4609076 (1986-09-01), Collins et al.
patent: 4907683 (1990-03-01), Patel
patent: 5383544 (1995-01-01), Patel
patent: 5586635 (1996-12-01), Nelson et al.

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