Brake booster

Details Brake booster Brake booster

1989-02-22

1991-04-09

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, F15B 910

Patent

active

050054651

ABSTRACT:
In order to enable a brake booster to operate both with a pressure above atmospheric and with atmospheric pressure without any negative mutual influences of the two energy types and without any change in the responding behavior of the device in case of failure of either energy type, the invention provides a pneumatic system which, during the operation of the brake booster with pressure above atmospheric, causes a force constituent to become active so as to counteract the forces caused by the increased pressure difference and acting on the control valve piston as well as on the control valve housing.

REFERENCES:
patent: 4283911 (1981-08-01), Makamura et al.
patent: 4854220 (1989-08-01), Imayoshi

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