Invention Grant
- Patent Title: Sound attenuation system and related method
- Patent Title (中): 声衰减系统及相关方法
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Application No.: US60070Application Date: 1998-04-15
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Publication No.: US5952621APublication Date: 1999-09-14
- Inventor: Alan R. D. Curtis , Richard Madden , Paul J. Remington
- Applicant: Alan R. D. Curtis , Richard Madden , Paul J. Remington
- Applicant Address: MA Cambridge
- Assignee: GTE Internetworking Incorporated
- Current Assignee: GTE Internetworking Incorporated
- Current Assignee Address: MA Cambridge
- Main IPC: B64D33/02
- IPC: B64D33/02 ; F02C7/045
Abstract:
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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