Supply pump for common rail fuel injection system

Details Supply pump for common rail fuel injection system Supply pump for common rail fuel injection system

1998-08-18

2000-11-07

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123450, F02M 3704

Patent

active

061421251

ABSTRACT:
A supply pump for a common rail fuel injection system applicable to a multi-cylinder engine, that exerts a smaller load on a drive power transmission mechanism connecting the engine to the supply pump. To this end, fuel delivery timing of the supply pump is optimized. The number of engine cylinders may be different from that of fuel delivery of the supply pump. A first fuel delivery end timing is 30.degree..+-.5.degree. after compression top dead center of #1 cylinder, and subsequent fuel delivery end timings come at constant intervals. The constant intervals are obtained by dividing 720.degree. by the number of fuel delivery per two rotations of an engine crankshaft.

REFERENCES:
patent: 4944275 (1990-07-01), Perr
patent: 5285758 (1994-02-01), Fiedler
patent: 5307781 (1994-05-01), Nakada
patent: 5404855 (1995-04-01), Yen
patent: 5558066 (1996-09-01), Zhao
patent: 5697343 (1997-12-01), Isozumi et al.
patent: 5713335 (1998-02-01), Perr
patent: 5860406 (1999-01-01), Schmidt

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