Annular clutch release cylinder assembly and clutch device

192 clutches and power-stop control – Clutches – Operators

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192 98, F16D 2508

Patent

active

056410492

ABSTRACT:
In an annular clutch release cylinder assembly comprising an annular piston and a cylinder housing formed by nesting a pair of cylinder members, each comprising a tubular portion and a radial flange, with each other. The annular piston is guided and reinforced by the cylindrical extension of one of the cylinder members so that the annular piston is made highly rigid against bending deformation. Therefore, the annular piston can be made of plastic material so that the weight and the fabrication cost of the release cylinder assembly may be reduced. By placing the flanges of the cylinder members directly one over the other, and forming at least a part of the passage leading to the annular slot by forming a recess in one of the flanges of the cylinder members, it is possible to reduce the axial dimension of the clutch release cylinder assembly.

REFERENCES:
patent: 4186828 (1980-02-01), Renaud
patent: 4585106 (1986-04-01), Shirley
patent: 4869355 (1989-09-01), Corral et al.
patent: 4938332 (1990-07-01), Thomas et al.
patent: 4960193 (1990-10-01), Hodge
patent: 4993529 (1991-02-01), Leigh-Monstevens et al.
patent: 5480017 (1996-01-01), Uenohara et al.

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