Fuel injection device

Details Fuel injection device Fuel injection device

1985-02-19

1987-03-31

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123458, 123501, 239 88, F02M 3900

Patent

active

046534482

ABSTRACT:
A fuel injection device is disclosed, which includes a body having first and second bores coupled to each other in series. A delivering plunger is fitted in the first bore, so that it can slide, to define a delivering pump chamber therein. Fuel under a constant pressure is supplied to the delivering pump chamber through a control passage, on which an electromagnetic valve is provided for opening and closing it. An injection plunger is fitted in the second bore, so that it can slide, to define in the second bore a chamber linking the delivering pump chamber and an injection pump chamber. Fuel under a pressure lower than the pressure of fuel in the delivering pump chamber is supplied to the injection pump chamber, which is hydraulically coupled to an injection nozzle.

REFERENCES:
patent: 4378774 (1983-04-01), Kato
patent: 4385609 (1983-05-01), Kato
patent: 4425894 (1984-01-01), Kato
patent: 4485787 (1984-12-01), Kato

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