Fuel injection pump for internal combustion engine

Details Fuel injection pump for internal combustion engine Fuel injection pump for internal combustion engine

1980-07-30

1983-01-04

Lazarus, Ira S.

Internal-combustion engines

Charge forming device

With fuel pump

F02M 5920

Patent

active

043667953

ABSTRACT:
A fuel injection pump having a hydraulic injection onset adjustment apparatus is proposed in which a supplementary variation of the injection onset is obtained by means of the variation of the pressure deviating from proportionality. The pressure control valve used has a throttle connection between the pressure chamber and the spring chamber. The variation of the pressure is obtained by means of controlling the discharge channel of the spring chamber, by means of a control slide exposed to the pump pressure, whose restoring spring is variable in accordance with engine characteristics.

REFERENCES:
patent: 3447520 (1969-06-01), Drori
patent: 3552366 (1971-01-01), Kemp
patent: 3910724 (1975-10-01), Okamoto
patent: 4074667 (1978-02-01), Skinner
patent: 4169444 (1979-10-01), Kaibara et al.
patent: 4202303 (1980-05-01), Mowbray
patent: 4228773 (1980-10-01), Stumpp et al.
patent: 4273090 (1981-06-01), Hofer et al.

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