Brake booster for vehicles

Details Brake booster for vehicles Brake booster for vehicles

1996-12-24

1998-09-08

Nguyen, Hoang

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

F15B 910

Patent

active

058029508

ABSTRACT:
A brake booster for vehicles prevents suction noise that is generated from a rapid inflow of air from being emitted to the outside. The brake booster includes a casing, a diaphragm mounted in the casing by which a constant-pressure chamber and a varying-pressure chamber are isolated from each other, a valve body one end of which is fixed to the inner surface of the diaphragm and the other end of which includes an air suction area, a poppet valve mounted in the valve body to connect or disconnect the varying-pressure chamber to the outside, an input shaft one end of which is arranged in the valve body to operate the poppet valve, an output shaft transmitting to a master cylinder the force boosted by the pressure difference between the constant-pressure chamber and the varying-pressure chamber, and a noise barrier mounted in the valve body.

REFERENCES:
patent: 4716814 (1988-01-01), Yamakoshi
patent: 5031507 (1991-07-01), Bornemann et al.
patent: 5235897 (1993-08-01), Watanabe
patent: 5249505 (1993-10-01), Hewitt
patent: 5558001 (1996-09-01), Osaka et al.
patent: 5630350 (1997-05-01), Verbo et al.
patent: 5664475 (1997-09-01), Gautier et al.

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