Clutch-purpose hydraulic servo

Details Clutch-purpose hydraulic servo Clutch-purpose hydraulic servo

2007-06-19

2007-06-19

Lorence, Richard M. (Department: 3681)

192 clutches and power-stop control

Clutches

Operators

C192S085060, C192S083000

Reexamination Certificate

active

11584585

ABSTRACT:
In a hydraulic servo for a clutch, a cancel plate is disposed on a second clutch drum that undergoes the same rotation as a second clutch drum provided with a cylinder portion, in such a fashion that the cancel plate is restricted from moving to a side opposite from a return spring in an axial direction. The first clutch drum is disposed, as a separate member, on the second clutch drum. A step portion of the second clutch drum prevents the first clutch drum from moving to a side opposite from the cancel plate. Due to the spring force of the return spring, the oil pressure in the cancel oil chamber and the oil pressure in the operating oil chamber, the force that presses the first clutch drum to the step portion is always greater than the force that presses the first clutch drum to the cancel plate side.

REFERENCES:
patent: 4957195 (1990-09-01), Kano et al.
patent: 2001/0017251 (2001-08-01), Han et al.
patent: 2003/0224900 (2003-12-01), Sugiura et al.
patent: 2003/0232675 (2003-12-01), Miyazaki et al.
patent: A 2003-247612 (2003-09-01), None
patent: A 2004-019830 (2004-01-01), None

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