Negative pressure booster

Details Negative pressure booster Negative pressure booster

1981-01-22

1982-11-16

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91369A, 92 132, 92 138, F15B 910, F15B 1524

Patent

active

043589901

ABSTRACT:
A negative pressure booster wherein a brake master cylinder of an automobile is boosted and operated under negative pressure. The booster comprises a booster shell, a booster piston to divide the interior of the booster shell into a first and second actuator chambers, a valve cylinder, a valve piston received in the valve cylinder and a resilient valve body. During the retraction of the valve piston, the retracting force thereof is supported on the resilient valve body so that as the retracting force increases, the gap between the first valve seat and the valve portion increases.

REFERENCES:
patent: 3312147 (1967-04-01), Reichard
patent: 3452646 (1969-07-01), Abbot et al.
patent: 3977299 (1976-08-01), Gardner

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