发明名称 |
Air filter status evaluator |
摘要 |
An air filter system for an internal combustion engine of a vehicle can have an indicator for signaling restricted flow of air through a replaceable air filter member mounted to a filter assembly. At least one sidewall can be associated with the replaceable air filter member to be positioned with an air stream passing through the air filter member. A resettable air filter status indicator can provide a visually perceivable signal external of the filter assembly. The resettable air filter status indicator can be integrally formed in the sidewall for indicating if a mounted air filter member requires replacement in response to air intake differential pressure with respect to atmospheric pressure on a downstream side of air flow through the replaceable filter member being above a predetermined threshold value.
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申请公布号 |
US7635402(B2) |
申请公布日期 |
2009.12.22 |
申请号 |
US20060615356 |
申请日期 |
2006.12.22 |
申请人 |
NISSAN TECHNICAL CENTER NORTH AMERICA, INC. |
发明人 |
HOFFMAN DAN |
分类号 |
B01D46/00 |
主分类号 |
B01D46/00 |
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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