Fuel injection pump

Details Fuel injection pump Fuel injection pump

1995-08-31

1996-08-20

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Fuel injection system

123450, 123506, F02M 3704

Patent

active

055469060

ABSTRACT:
A fuel injection pump of the kind including a pumping plunger movable inwardly in a bore to displace fuel to an outlet. A spill valve member coupled to a piston slidable in a cylinder is moved to the open position to spill fuel from the bore when a control valve is opened to supply a pulse of fuel under pressure to one end of the cylinder. The fuel spilled from the bore also flows into the one end of the cylinder. A restricted flow path is provided to allow fuel to escape from said one end of the cylinder and a further restricted flow path may be provided to allow fuel from a low pressure source to flow into said one end of the cylinder.

REFERENCES:
patent: 4313464 (1982-02-01), Major
patent: 5027776 (1991-07-01), Nicol
patent: 5035587 (1991-07-01), Collingborn et al.
patent: 5203303 (1993-04-01), Collingborn et al.
patent: 5207202 (1993-05-01), Collingborn
patent: 5213481 (1993-05-01), Stringfellow et al.
patent: 5413081 (1991-05-01), Collingborn

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