Diesel reservoir ice bypass valve

Details Diesel reservoir ice bypass valve Diesel reservoir ice bypass valve

2006-10-10

2006-10-10

Miller, Carl S. (Department: 3747)

Internal-combustion engines

Charge forming device

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

C123S1980DA, C123S509000, C210S416400, C137S113000, C137S590000

Reexamination Certificate

active

07117855

ABSTRACT:
A diesel fuel delivery system that maintains optimum fuel delivery to the engine despite the presence of an ice blockage at the fuel strainer. Ice formation in diesel fuel can cause fuel blockage at the fuel strainer and generate high vacuum conditions as the engine tries to draw fuel from the tank. A normally closed bypass valve automatically opens in response to an engine vacuum condition higher than normal engine vacuum levels. Upon the bypass valve opening, fuel is drawn through an auxiliary inlet port and line located above the ice formation in the tank.

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