Brake booster of tandem type

Chemistry: fertilizers – Processes and products – Forms or conditioning

Patent

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92 48, F15B 910

Patent

active

052478688

ABSTRACT:
An enclosed shell is divided by a center plate and a pair of front and rear diaphragms which are disposed on the opposite sides of the center plate into four chambers. A center body is fitted over a valve body which internally houses a valve mechanism. The center body slides relative to the central portion of the center plate with a seal member interposed therebetween. The inner periphery of the front diaphragm is inserted inside the center body, and is held between the valve body and the center body at a location rearward of the seal member, whereby the overall length of the brake booster is reduced.

REFERENCES:
patent: 4069742 (1978-01-01), Gephart et al.
patent: 4512237 (1985-04-01), Endoh et al.
patent: 4587884 (1986-05-01), Tsubouchi
patent: 4658704 (1987-04-01), Mori et al.
patent: 4718326 (1988-01-01), Sugiura et al.

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