A SILENCER

WIPO Patent Application WO2001027445

A3

A silencer that comprises a casing, one or more pipes or passages leading a flow of gas to said casing and means for leading gas from said casing. The silencer further comprises at least one internal chamber, one or more flow inlets to said chamber and one or more flow outlets from said chamber, and one or more flow distributing means connected to said flow inlet(s) and/or to said flow outlet(s). The flow distributing means comprises one or more walls or profiles extending on a geometrical surface that defines a boundary between an inner volume of said flow distributing means and said chamber. The silencer further comprises one or more apertures for a flow of gas through said apertures and for leading gas either out of said inner volume into said chamber, or into said inner volume from said chamber. The apertures have a smallest cross-sectional transverse dimension s and a length L, said dimension s being at the maximum 0.2 times the smallest cross-sectional dimension D of the inlet or outlet. The length L is at least the same as said dimension s.

FREDERIKSEN SVEND (DK)
FREDERIKSEN LARS (DK)
MIKKELSEN SOEREN AERENDAL (DK)

PCT/DK2000/000576

October 18, 2001

October 11, 2000

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SILENTOR HOLDING AS (DK)
FREDERIKSEN SVEND (DK)
FREDERIKSEN LARS (DK)
MIKKELSEN SOEREN AERENDAL (DK)

F01N1/08; F01N1/12; F01N13/08; (IPC1-7): F01N1/08; F01N1/12

US4685534A	1987-08-11
FR807035A	1936-12-31
FR2622632A1	1989-05-05
GB481172A	1938-03-07
CH308988A	1955-08-15

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