Vacuum brake booster

Details Vacuum brake booster Vacuum brake booster

1984-04-19

1986-05-06

Hershkovitz, Abraham

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

92 99, 92128, 92169, F15B 910

Patent

active

045864276

ABSTRACT:
In prior art vacuum brake boosters the partition wall is supported by a control hub. The boosting force is transmitted through the hub to a force transmitting serving to actuate the master cylinder. According to the present invention the partition wall includes a central sleeve of a stepped configuration which serves to transmit the boosting force without loading the hub. As a result the hub can be produced from a thermoplastic material of just sufficient strength to meet the reduced force transmitting requirements and which is easier to mold.

REFERENCES:
patent: 3096689 (1963-07-01), Kytta
patent: 3143927 (1964-08-01), French
patent: 3289547 (1966-12-01), Kytta
patent: 3517588 (1970-06-01), Kytta
patent: 3688647 (1972-09-01), Kytta
patent: 4005639 (1977-01-01), Welsh
patent: 4257312 (1981-03-01), Ohmi
patent: 4270353 (1981-06-01), Thomas
patent: 4271670 (1981-06-01), Ohmi
patent: 4279193 (1981-07-01), Satoh
patent: 4286501 (1981-09-01), Thomas

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