发明名称 |
Environmental noise pollution reduction device of running road vehicle |
摘要 |
Engine noises directed to the bottom portion of an engine compartment are reflected from the surface of an under-cover partly closing the engine compartment bottom opening and thereafter absorbed by sound-absorbent material attached to the inner surface of the hood of the engine compartment.
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申请公布号 |
US4060142(A) |
申请公布日期 |
1977.11.29 |
申请号 |
US19750633419 |
申请日期 |
1975.11.19 |
申请人 |
NISSAN MOTOR COMPANY, LIMITED |
发明人 |
ABE, EIICHI |
分类号 |
B60R13/08;(IPC1-7):B62D25/08 |
主分类号 |
B60R13/08 |
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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