Brake booster

Details Brake booster Brake booster

1989-09-28

1990-12-11

Capossela, Ronald C.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, 92 48, F15B 910

Patent

active

049761889

ABSTRACT:
A brake booster includes at least two pairs of constant pressure chambers and variable pressure chambers defined within a shell. A clearance is defined between a stepped end face of a valve body which is disposed within the shell and a power piston which is mounted on the valve body at a location rearward of the stepped end face. The clearance is utilized to provide a communication between the constant pressure chambers, thereby allowing a reduction in the axial size of the valve body.

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patent: 4718326 (1988-01-01), Sugiura et al.
patent: 4738186 (1988-04-01), Rossigno et al.
patent: 4787292 (1988-11-01), Tsuyuki et al.
patent: 4813337 (1989-03-01), Endo

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