| 摘要 |
PCT No. PCT/NL93/00037 Sec. 371 Date Aug. 19, 1994 Sec. 102(e) Date Aug. 19, 1994 PCT Filed Feb. 18, 1993 PCT Pub. No. WO93/17273 PCT Pub. Date Sep. 2, 1993A silencer for silencing outlet pulses of compressed air, comprises an elongated housing provided with an inlet and an outlet. Fitted in the housing between the inlet and outlet, are at least two sound-absorbent elements each comprising a transverse member which extends from the longitudinal center line of the housing perpendicularly thereto and at least on two sides terminates at a distance from the housing, the transverse member has, at the end of those sides, a plate which is air impermeable and which extends essentially parallel to the longitudinal center line of the housing. The part of the baffle between the two sides extends up to the wall of the housing. The inlet and outlet open into the housing at locations spaced from the area defined between the plates, and the free cross-sectional surface area between the plates and the housing is less than 15% of the total cross-sectional surface area of the housing at the location of the plates.
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