Richard B Krause

US Patent:

58394133, Nov 24, 1998

Filed:

Apr 28, 1997

Appl. No.:

8/846242

Inventors:

Richard K. Krause - Wooster OH
Eric D. Ramseyer - Orrville OH

Assignee:

The Rexroth Corporation - Wooster OH

International Classification:

F02M 700

US Classification:

123447

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.