Boost-failure responsive fluid tapping valve in tandem master cy

Details Boost-failure responsive fluid tapping valve in tandem master cy Boost-failure responsive fluid tapping valve in tandem master cy

1987-08-05

1990-01-09

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Pulsator

60562, 60568, 60593, B60T 1314

Patent

active

048919454

ABSTRACT:
The brake pressure generator (1) includes a tandem master cylinder (2) actuable by two booster pistons (19, 32) to which a hydraulic auxiliary pressure is applied and by a pedal actuating mechanism (17,18). A control valve (14, 20) controls the auxiliary boost pressure. The control valve, through an actuator (16), cooperates with the pedal actuating mechanism (17,18). One booster piston (32) is disposed on the bottom of the tandem master cylinder (2) adjacent the push rod (22). Normally-open valve (37) closes when brake pressure exceeds boost pressure to trap fluid in chamber (34).

REFERENCES:
patent: 3815364 (1974-06-01), Belart et al.
patent: 3827242 (1974-08-01), Belart
patent: 3855797 (1974-12-01), Papiau
patent: 4114376 (1978-09-01), Cattaneo
patent: 4467700 (1984-08-01), Udono
patent: 4586591 (1986-05-01), Belart
patent: 4687259 (1987-08-01), Reinartz et al.
patent: 4702530 (1987-10-01), Belart
patent: 4708405 (1987-11-01), Belart
patent: 4729609 (1988-03-01), Seibert et al.
patent: 4754605 (1988-07-01), Seibert et al.

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