发明授权
- 专利标题： Sound attenuation system and related method
- 专利标题（中）： 声衰减系统及相关方法
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申请号： US60070申请日： 1998-04-15
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公开(公告)号： US5952621A公开(公告)日： 1999-09-14
- 发明人: Alan R. D. Curtis , Richard Madden , Paul J. Remington
- 申请人： Alan R. D. Curtis , Richard Madden , Paul J. Remington
- 申请人地址： MA Cambridge
- 专利权人： GTE Internetworking Incorporated
- 当前专利权人： GTE Internetworking Incorporated
- 当前专利权人地址： MA Cambridge
- 主分类号： B64D33/02
- IPC分类号： B64D33/02 ; F02C7/045
摘要：
The present invention is noise attenuation system and related method for suppressing noise generated by a noise source, such as a jet engine, contained in a housing. An impedance device is positioned in the housing to attenuate the amplitude of sound waves generated by the noise source propagating in one direction and to create a reflected sound wave. The reflected sound wave is out of phase with the sound waves propagating from the noise source away from the impedance device. The reflected sound wave destructively interferes with this sound wave to attenuate the amplitude.
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