发明名称 |
Positive crankcase ventilation device and system |
摘要 |
A PCV device for recirculation of crankcase air has a structural member with a tubular, substantially linear internal flow passage characterized by a length and diameter with a ratio of length to diameter that attenuates noise and acts as a restrictive orifice to at least partially control flow volume therethrough. A PCV system for an engine includes a structural member as described above placed in fluid communication with a passage member to partially form a flow path between an interior portion of an engine crankcase and an air intake portion of the engine. The flow path has an absence of any flow restriction with a diameter smaller than the diameter of the structural member.
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申请公布号 |
US7513246(B2) |
申请公布日期 |
2009.04.07 |
申请号 |
US20060432097 |
申请日期 |
2006.05.11 |
申请人 |
GM GLOBAL TECHNOLOY OPERATIONS, INC. |
发明人 |
HAZELTON GARY J.;GRIFFITHS LEONARD BARRY |
分类号 |
F02B25/06 |
主分类号 |
F02B25/06 |
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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