System for automatically changing fuel passages

Details System for automatically changing fuel passages System for automatically changing fuel passages

2008-07-29

2008-07-29

Miller, Carl S (Department: 3747)

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

C123S510000, C123S514000

Reexamination Certificate

active

11904852

ABSTRACT:
The present invention provides a system which can automatically switch passages of a fuel supply line and a fuel return line when the pressure in a fuel return line becomes higher than a predetermined pressure. Even when the fuel supply and return lines are incorrectly connected, the present system can prevent the problem of damage to a fuel supply system and fuel leakage which may be caused by an increased fuel pressure.

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patent: 7128054 (2006-10-01), Koehler et al.
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patent: 9032662 (1997-02-01), None
patent: 2002-180924 (2002-06-01), None
patent: 2004-027855 (2004-01-01), None
patent: 1020040069605 (2004-08-01), None

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