Fuel injection pump

Details Fuel injection pump Fuel injection pump

1991-06-17

1992-07-14

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123506, 123516, 417462, F02M 3400

Patent

active

051293803

ABSTRACT:
A fuel injection pump for supplying fuel to an internal combustion engine includes a bore containing a cam actuated pumping plunger. The bore is connected to an outlet during inward movement of the plunger and a spill valve including a spill valve member is operable to spill fuel from the bore to prevent delivery of fuel to the associated engine. The spill valve member includes a piston portion slidable in a cylinder to which fuel under pressure from the bore can be admitted to move the spill valve member to the open position against the action of a spring. The admission of fuel under pressure to the cylinder can be effected by an electromagnetically operable valve or by the use of a control sleeve, recesses on the internal surface of which in conjunction with porting in a rotary part of the pump, form a control valve.

REFERENCES:
patent: 4572137 (1986-02-01), Nakatsuka
patent: 4624233 (1986-11-01), Phillips
patent: 4705006 (1987-11-01), Bastenhof
patent: 4759694 (1988-07-01), Thornwaite
patent: 4763873 (1988-08-01), Phillips
patent: 4779599 (1988-10-01), Phillips
patent: 4831991 (1989-05-01), Cayot
patent: 4879984 (1989-11-01), Rembold

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