Diesel fuel supply system for preventing fuel pressure loss

Details Diesel fuel supply system for preventing fuel pressure loss Diesel fuel supply system for preventing fuel pressure loss

2005-11-15

2005-11-15

Lo, Weilun (Department: 3747)

Internal-combustion engines

Charge forming device

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

C123S446000, C123S557000, C123S179170

Reexamination Certificate

active

06964267

ABSTRACT:
Diesel engine fuel supply systems are provided that are preferably adapted to reduce fuel pressure loss. Preferred fuel supply systems comprise a fuel supply line for providing fuel from a fuel tank to a fuel injector through a prime pump and fuel filter. A first fuel return line is configured to return the residual fuel in the fuel injector to the fuel tank. A second fuel return line is configured to return the residual fuel in the fuel injector to the fuel filter. A heater heats up the fuel passing through the second fuel return line. A bypass line is suitably equipped to directly provide the fuel to the fuel injector through the fuel filter without passing through the prime pump.

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patent: 6615806 (2003-09-01), Schueler
Patent Abstracts of Japan, Publication No. 07-127515, May 1995.

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