发明名称 |
Modular active silencer with port dish |
摘要 |
A modular Active Noise Control exhaust silencing system is provided including a housing defining an acoustic enclosure having an acoustic outlet port. A speaker is disposed within the acoustic enclosure and an amplifier is disposed within the housing and connected to the speaker. A microphone is associated with the housing for detecting the exhaust noise. A control unit is disposed within the housing in communication with the microphone for receiving signals therefrom. The control unit determines an anti-noise signal for the amplifier for creating an anti-noise responsive to a detected noise source. A port dish is disposed adjacent to the acoustic outlet port which serves as a noise cancellation aid.
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申请公布号 |
US6072880(A) |
申请公布日期 |
2000.06.06 |
申请号 |
US19980032326 |
申请日期 |
1998.02.27 |
申请人 |
TENNECO AUTOMOTIVE INC. |
发明人 |
SHIPPS, J. CLAY;RENZ, CHARLES J. |
分类号 |
F01N1/06;G10K11/178;(IPC1-7):H03B29/00;A61F11/06;F01N7/08 |
主分类号 |
F01N1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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