Wet clutch or friction plate brake

Details Wet clutch or friction plate brake Wet clutch or friction plate brake

2005-09-20

2005-09-20

Schwartz, Chris (Department: 3683)

Brakes

Wheel

Axially movable brake element or housing therefor

C188S26400E, C192S070120

Reexamination Certificate

active

06945371

ABSTRACT:
Wet clutch (100) or friction plate brake has an essentially hollow cylindrical shaped balance piston (14) that is coaxial to a clutch hub (2) and is rigidly connected with an apply piston support device (12), an essentially ring shaped spring support (14.1), and an essentially cylinder shaped wall (14.3) that has an essentially cylinder shaped contact surface (14.4). The cylinder shaped contact surface (14.4) is axially (ax) displaceable and is bordered by an essentially cylinder shaped contact surface (8.5) of an apply piston (8) so as to form an equalizing space (16). The contact or support surfaces (14.4, 8.5) of the balance piston (14) and the apply piston (8) are provided coaxial between the clutch hub (2) and the apply piston support device (12).

REFERENCES:
patent: 4732253 (1988-03-01), Hiramatsu et al.
patent: 5281190 (1994-01-01), Koivunen
patent: 5439088 (1995-08-01), Michioka et al.
patent: 5887690 (1999-03-01), Haupt
patent: 2004/0154894 (2004-08-01), Braford et al.
European Search Report; Jan. 2, 2003 # 020159620.

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