Fuel injection pump for internal combustion engines

Details Fuel injection pump for internal combustion engines Fuel injection pump for internal combustion engines

1985-02-22

1986-10-28

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123449, F02M 3900

Patent

active

046192387

ABSTRACT:
In a fuel injection pump for an internal combustion chamber a device for an "early" adjustment of a fuel injection onset includes a check valve for controlling the fuel injection onset, for example in case of a cold start or low atmospheric temperatures. An unloading bypass conduit with an adjustable flow valve is connected to the check valve in parallel so that the adjustment makes possible the control of the beginning of the characteristic line of the pump relative to the characteristic line of the internal combustion engine. The device includes a pressure control valve which has an outlet opening controlled by a control piston. The cross-section of the outlet opening defines the adjustment of the characteristic line of the pump to the characteristic line of the engine.

REFERENCES:
patent: 4359994 (1982-11-01), Hofer
patent: 4378002 (1983-03-01), Konrath
patent: 4395990 (1983-08-01), Hofer
patent: 4430974 (1984-02-01), Bofinger
patent: 4475521 (1984-09-01), Greiner
patent: 4495916 (1985-01-01), Shinoda

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