Brake booster with compression spring extension limiting links

Details Brake booster with compression spring extension limiting links Brake booster with compression spring extension limiting links

1992-06-15

1993-12-28

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91374, 92128, 92130R, F15B 910, F01B 2900

Patent

active

052729583

ABSTRACT:
The invention relates to a vacuum-operated servo-brake comprising, in a casing consisting of a shell (10) and a cover (12), a piston (20) separating leaktightly two inner chambers (22, 24), a valve means controlled by a rod (32) projecting from the casing in order to ensure the operation of the servo-brake, and a prestressed spring (34) for returning the piston (20) to its rest position substantially abutting the cover (12), the spring (34) bearing on the shell (10). According to the invention, the spring (34) comprises a mechanism enabling its extension to be limited when the shell (10) and the cover (12) are not fixed to each other.

REFERENCES:
patent: 2308889 (1943-01-01), McCune
patent: 4186650 (1980-02-01), Kytta
patent: 4354425 (1982-10-01), Bruton et al.
patent: 4393749 (1983-07-01), Miyazaki
patent: 4480526 (1984-11-01), Carre
patent: 4630525 (1986-12-01), Nishii

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