Vacuum brake booster

Details Vacuum brake booster Vacuum brake booster

1980-04-24

1982-09-21

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, F15B 910

Patent

active

043500765

ABSTRACT:
In the brake booster known in the prior art, the partition wall comprises a metal disc supported by a control hub made of a plastic material. The force exerted on the partition wall is transmitted through the hub to a force transmitting member actuating a master brake cylinder. According to the present invention the hub is composed of a metal sleeve transmitting the forces and a guiding neck of plastic material including all air guiding channels of the control valve disposed therein. This guiding neck can be manufactured much easier and can be made of a plastic material of just sufficient strength to meet the reduced force transmitting requirements.

REFERENCES:
patent: 3350882 (1967-11-01), Leising
patent: 3517588 (1970-06-01), Kytta
patent: 3845692 (1974-11-01), Takeuchi

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