Resonator type silencer having plural resonance chambers

Details Resonator type silencer having plural resonance chambers Resonator type silencer having plural resonance chambers

1993-08-25

1994-09-20

Gellner, Michael L.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181227, 181229, 181250, 181273, 181276, E04F 1704

Patent

active

053491416

ABSTRACT:
A resonator type silencer installed in an intake system of an automotive internal combustion engine. The resonator type silencer comprises a generally cup-shaped base member integrally connected with an air duct through which intake air to be inducted into the engine passes. The air duct is formed with an opening through which the inside of the base member is in communication with the inside of the air duct. The base member is formed at its opened end with a peripheral flange. A cover member is formed at its opened end with a peripheral flange which is bonded to the peripheral flange of the base member to define a sealed chamber. A partition plate is fixedly disposed inside the sealed chamber to divide the sealed chamber into a first resonance chamber defined by the base member, and a second resonance chamber defined by the cover member. The partition plate has a central section which is axially separate from a peripheral section which is fixedly put between the peripheral flanges of the base and cover members. The partition plate is formed at its central section with an opening through which the first and second resonance chambers are in communication with each other.

REFERENCES:
patent: 1179075 (1916-04-01), Collins
patent: 4539947 (1985-09-01), Sawada et al.

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