发明名称 |
Variably tuned Helmholtz resonator with linear response controller |
摘要 |
A variably tuned Helmholtz resonator which has a connection establishing fluid communication between fixed volume chamber and a duct of an induction system for an internal combustion engine. The tubular connection has a special configuration which affects changes in open area and length of the tubular connection so as to create a linear relationship between the resonant frequency and the angular position of the tuning plate. The tuning plate is positioned correspondingly to engine speed to provide noise attenuation over a wide range of engine speeds.
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申请公布号 |
US5771851(A) |
申请公布日期 |
1998.06.30 |
申请号 |
US19970902454 |
申请日期 |
1997.07.29 |
申请人 |
SIEMENS ELECTRIC LIMITED |
发明人 |
MCLEAN, IAN R. |
分类号 |
F02B27/02;F02M35/12;(IPC1-7):F02M35/10 |
主分类号 |
F02B27/02 |
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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