Fluid pressure ram provided with a sliding intermediate chamber

Details Fluid pressure ram provided with a sliding intermediate chamber Fluid pressure ram provided with a sliding intermediate chamber

1996-09-17

1998-09-15

Hannon, Thomas R.

192 clutches and power-stop control

Clutches

Operators

92 51, 92107, F16D 2506, F15B 1524

Patent

active

058066489

ABSTRACT:
The invention concerns a fluid pressure ram having a fixed cylindrical control chamber defined radially by inner and outer partitions, in which one axial end of the chamber is closed off by a piston which has a cylindrical housing and in which, in the retracted position of the piston, the inner partition of the chamber is received in the housing. The piston, in the protruding position, is fully disengaged axially from the fixed chamber. Two cylindrical shells provided axially in line with the chamber are provided when the piston is in the retracted position. The shells are able to slide axially with respect to the piston and with respect to the chamber so as to define, in the protruding position of the piston, an intermediate annular chamber which axially extends the fixed chamber and which is closed axially by the piston.

REFERENCES:
patent: 4249458 (1981-02-01), Massing
patent: 4587888 (1986-05-01), Anderson et al.
patent: 4869355 (1989-09-01), Corral et al.
patent: 5480017 (1996-01-01), Uenohara et al.

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