Annular hydraulic clutch release cylinder device

Details Annular hydraulic clutch release cylinder device Annular hydraulic clutch release cylinder device

1994-04-15

1996-01-02

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Operators

192 91A, 92107, F16D 2314, F16D 2506

Patent

active

054800170

ABSTRACT:
In a clutch release cylinder device, comprising an annular cylinder defining an annular recess, an annular piston slidably received in the annular recess; and an annular clutch release bearing assembly including a release bearing, the annular cylinder is constructed by a pair of cylinder members each formed by drawing sheet metal, and provided with a flange and a tubular portion, the tubular portion of one of the cylinder members being larger than that of the tubular portion of the other cylinder member, the annular recess being defined between the tubular portions which are coaxially nested with each other. Because the cylinder members may be made of metallic material, such as steel and other materials of high rigidity and mechanical strength, a sufficient rigidity and mechanical strength can be ensured with a substantially smaller wall thickness as compared to a cylinder formed by a molded plastic member, and substantially more economically as compared with a cylinder formed by machining a metallic block.

REFERENCES:
patent: 4456111 (1984-06-01), Limbacher
patent: 4708228 (1987-11-01), Leigh-Monstevens
patent: 4938332 (1990-07-01), Thomas et al.
patent: 4960193 (1990-10-01), Hodge
patent: 5083649 (1992-01-01), Baer
patent: 5113991 (1992-05-01), Kajitani et al.
patent: 5267637 (1993-12-01), Wilbur et al.

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