Fuel injection system for internal combustion engines

Details Fuel injection system for internal combustion engines Fuel injection system for internal combustion engines

1985-06-18

1986-10-28

Greenlief, Magdalen Y. C.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123500, F02D 3100

Patent

active

046192336

ABSTRACT:
An improved fuel injection system of the type in which the fuel injection timing and the fuel injection rate vary with the plunger pre-stroke which is regulated by displacing a control sleeve slidably fitted on a plunger reciprocating at a non-uniform speed and in which the actual injection quantity varies with the pre-stroke. The fuel injection system comprise an engine operating condition sensor, a pre-stroke control means, and a control sleeve driving means that cooperate to adjust the plunger pre-stroke. The amount of pre-stroke is detected by a position sensor. The position sensor and the engine operating condition sensor deliver respective outputs to a correction arithmetic means which computes the amount of deviation and thereby the amount of correction based on the outputs delivered. The arithmetic means sends an output signal indicative of the amount of correction to an injection quantity control means which in turn corrects the object injection quantity and then delivers a control signal to a plunger driving means by means of which the plunger is rotated, thereby adjusting the effective stroke of the plunger according to the amount of pre-stroke.

REFERENCES:
patent: 2147390 (1939-02-01), Vaudet
patent: 4497294 (1985-02-01), Izumi et al.

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