Electronically controlled distributor type fuel injection pump f

Details Electronically controlled distributor type fuel injection pump f Electronically controlled distributor type fuel injection pump f

1985-04-02

1986-08-12

Moy, Magdalen Y. C.

Internal-combustion engines

Charge forming device

Fuel injection system

123458, 123459, 123460, 123179G, F02M 5920

Patent

active

046049797

ABSTRACT:
A suction space is disposed to selectively communicate with a pump working chamber defined at one end of a plunger via a first communication passageway in which a solenoid valve is arranged, or with suction ports formed in the plunger and communicating with the pump working chamber via a second communication passageway having a restriction therein. The solenoid valve alternately opens and closes for ordinary fuel injection during operation of the engine other than at the start thereof. A selector valve keeps the first communication passageway closed and simultaneously keeps the second communication passageway opened for fuel injection through collaboration of the suction ports with the second communication passageway, in place of the alternate opening and closing of the solenoid valve.

REFERENCES:
patent: 4475507 (1984-10-01), Miyaki et al.
patent: 4502445 (1985-03-01), Roca-Nierga et al.
patent: 4519353 (1985-05-01), Ito et al.

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