Quick start HEUI system

Details Quick start HEUI system Quick start HEUI system

1997-04-28

1998-11-24

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Fuel injection system

12317917, F02M 700

Patent

active

058394133

ABSTRACT:
A priming system for a hydraulically actuated, electronically controlled unit injector fuel systems used on diesel engines and the like includes an accumulator charged at low pressure and in fluid communication with the manifold/rail passages leading to the individual fuel injectors, which passages are pressurized upon engine startup by the system's high pressure pump to actuate the injectors. The accumulator is plumbed into the hydraulic system by one way check valves which isolate the accumulator from the high pressure pump to permit the high pressure pump and the priming system to be located at any convenient position within the vehicle's engine compartment irrespective of their position relative to the manifold/rail passages.

REFERENCES:
patent: 5121730 (1992-06-01), Ausman et al.
patent: 5213083 (1993-05-01), Glassey
patent: 5245970 (1993-09-01), Iwaszkiewicz et al.
patent: 5456233 (1995-10-01), Felhofer
patent: 5471959 (1995-12-01), Sturman
patent: 5546912 (1996-08-01), Yamada et al.
patent: 5711263 (1998-01-01), Brown

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