Brake booster

Details Brake booster Brake booster

1984-12-03

1986-08-12

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Pulsator

60553, 60581, B60T 1320

Patent

active

046048707

ABSTRACT:
A brake booster (16) includes a pair of pistons (50, 56) and a valve assembly (74) operable to communicate fluid pressure to the pair of pistons (50, 56). An input assembly (90) moves in response to an input force to control the operation of the valve assembly (74). Movement of the valve assembly (74) allows fluid to be supplied to working chambers (52, 58). Resilient means (133, 135) acts on and holds pins (130, 132) against the pistons (50, 56). When the fluid pressure in the working chambers (52, 58) acting on the pins (130, 132) is sufficient to overcome the resilient means (133, 135) an increase in the fluid pressure in chamber (52, 58) moves the pins (130, 132) into engagement with the input assembly (90) to oppose movement of the input assembly (90) since a desired brake force has been generated.

REFERENCES:
patent: 3408815 (1968-11-01), Stelzer
patent: 3907375 (1975-09-01), Lewis
patent: 3979153 (1976-09-01), Ingram
patent: 4464899 (1984-08-01), Myers
patent: 4534171 (1985-08-01), Leiber

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