发明名称 Resonator type passive noise damping element for e.g. combustion engines, fans or compressors
摘要 The resonator has a bent cone shape with rigid walls enclosing a gas volume which has a destructive interference effect on sound entering the resonator inlet. MECHANICAL ENGINEERING - The cross-sectional area (A) of the resonator reduces by a power of two over a distance x measured from the resonator inlet, according to the equation A=(1-x)2, where 1 is the length of the resonator from the inlet. A spiral or screw shaped resonator is used.
申请公布号 SE518146(C2) 申请公布日期 2002.09.03
申请号 SE19970002935 申请日期 1997.08.14
申请人 RAGNAR GLAV 发明人 RAGNAR *GLAV
分类号 F01N;F01N1/02;F01N1/06;(IPC1-7):F01N1/02 主分类号 F01N
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