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US 5,701,794 AGranted
Brake booster provided with a noise shielding member
AssigneeMando Machinery Corporation
InventorHang-Byong Cha
Life of this patent
Estimating the term…
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.
Claims4
A brake booster comprising:
- a valve housing;
- an input rod movably mounted in the valve housing;
- an air valve mounted in the valve housing, the air valve being opened by the input rod;
- a main filter fixed on the input rod;
- a noise absorbing member fixed on the input rod;
- a spring seat fixed on the input rod;
- a return spring for biasing the input rod, the return spring contacting the spring seat;
- and
- a noise shielding member fixed on the input rod, the noise shielding member spaced apart from the noise absorbing member toward the air valve, wherein the main filter, the noise absorbing member, the spring seat, the noise shielding member move integrally with the input rod.
6 more elements
Dependencies are inferred from the claim text.