Fuel injection control apparatus for diesel engines

Details Fuel injection control apparatus for diesel engines Fuel injection control apparatus for diesel engines

1984-04-10

1986-01-28

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123480, 123357, F02D 502

Patent

active

045664170

ABSTRACT:
A fuel injection arrangement for a diesel engine. An overflow passage for high pressure fuel is provided in the engine's fuel injection pump. A solenoid valve is disposed in the overflow passage for controlling the fuel injection amount through its on-off operation. The time when the fuel injection pump starts injecting fuel is detected by an injection start detector. To this injection starting time point is added a target injection period to determine an injection end time. At this injection end time the solenoid valve is opened to discontinue the fuel injection. The target injection period is determined according to operating conditions of the engine. Since this apparatus detects the actual injection start point and controls the injection period on the basis of the result of the detection, the fuel injection amount can be controlled extremely accurately.

REFERENCES:
patent: 3724436 (1973-04-01), Nagata et al.
patent: 3742918 (1973-07-01), Martin et al.
patent: 4359032 (1982-11-01), Ohie
patent: 4426981 (1984-01-01), Greiner et al.
patent: 4438496 (1984-03-01), Ohie

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