Device for deadening sound in pipelines

Details Device for deadening sound in pipelines Device for deadening sound in pipelines

1995-11-13

1997-10-14

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181255, 181256, 181258, 181265, 181272, F01N 108

Patent

active

056775180

ABSTRACT:
A device for deadening sound in pipelines comprising a chamber (1) positioned on the pipeline (2, 7) with a discontinuous pipeline section (3) projecting inwards at the chamber inlet and a discontinuous section (7) of the pipeline connected at the chamber outlet. Disposed within the chamber (1) opposite the opening of the pipeline section (3) there is a cover cap (4), in the form of a pipe resonator, whose side wall encloses the pipeline section (3) on one part of its length so that an annular channel (5) remains between the side wall and the pipe section (3). This permits the attainment of a very efficient sound deadening under certain geometric conditions.

REFERENCES:
patent: 1514441 (1924-11-01), Culp
patent: 1665005 (1928-04-01), Culp
patent: 2043030 (1936-04-01), Bourne
patent: 2100655 (1937-11-01), Bourne
patent: 2218959 (1940-02-01), Palmer
patent: 3498406 (1970-03-01), Heath
patent: 4022291 (1977-05-01), Stephenson
patent: 4172508 (1979-10-01), Moss et al.

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