Negative pressure booster

Details Negative pressure booster Negative pressure booster

1979-10-10

1981-08-11

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

60554, F15B 910

Patent

active

042827990

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 operating chambers, a valve cylinder, a valve piston received in the valve cylinder and a reaction piston. The sliding stroke of the reaction piston is regulated to be smaller than the sliding stroke of the valve piston so that even if the valve piston is largely retracted, the amount of inflation and deformation of the resilient piston may be minimized.

REFERENCES:
patent: 3110031 (1963-11-01), Price
patent: 3132567 (1964-05-01), Ingres et al.
patent: 4069742 (1978-01-01), Gephert et al.

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