Brake booster provided with a noise shielding member

Details Brake booster provided with a noise shielding member Brake booster provided with a noise shielding member

1996-08-20

1997-12-30

Lopez, F. Daniel

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

181230, 181258, F15B 910

Patent

active

057017948

ABSTRACT:
A brake booster includes a valve housing, an input rod movably mounted in the valve housing, a main filter, a noise absorbing member, a spring seat, a return spring for biasing the input rod, and a noise shielding member. The main filter, the noise absorbing member, the spring seat, the noise shielding member are fixed on the input rod and move integrally with the latter. The noise shielding member spaced apart from the noise absorbing member reduces the air suction noise.

REFERENCES:
patent: 4716814 (1988-01-01), Yamakoshi
patent: 4885979 (1989-12-01), Macht et al.
patent: 5090294 (1992-02-01), Endou

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