Sound damping device, preferably for reducing the noise of blow-

Details Sound damping device, preferably for reducing the noise of blow- Sound damping device, preferably for reducing the noise of blow-

1985-05-16

1987-04-07

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181258, F01N 124

Patent

active

046553177

ABSTRACT:
A sound damping device for suppressing the noise generated by a gas stream emitted by a blow-off valve includes a body of a porous, resiliently readily compressible material traversed by the gas stream and a nipple projecting into the body and having a passage oriented coaxially with the axis of the body. The passage has an inlet opening adapted to receive the gas stream from the valve and a sound suppressing outlet being spaced from the inlet opening and being situated within the body. There is further provided a deformable outer layer which substantially entirely surrounds the body and is bonded thereto. The outer layer, similarly to the body, is permeable to air.

REFERENCES:
patent: 1326647 (1919-12-01), Kehan
patent: 1627324 (1927-05-01), Green
patent: 2600236 (1952-06-01), Gibel
patent: 3826281 (1974-07-01), Clark

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