Natural vacuum leak detection device using diaphragm-seal...

Details Natural vacuum leak detection device using diaphragm-seal... Natural vacuum leak detection device using diaphragm-seal...

2008-05-02

2010-12-28

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

C123S518000

Reexamination Certificate

active

07856965

ABSTRACT:
A system and method are provided for detecting a leak in an automotive fuel system. The functions of vacuum sensing, vacuum relief (high vacuum relief level) and pressure relief (high pressure relief level) are all performed by a single self-actuated diaphragm-seal valve mechanism.

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patent: 2004/0237944 (2004-12-01), Veinotte et al.
patent: 2005/0005917 (2005-01-01), Veinotte
International Search Report and Written Opinion mailed on Oct. 14, 2008.

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