Fuel injection valve with variable lifting amount of the nozzle

Details Fuel injection valve with variable lifting amount of the nozzle Fuel injection valve with variable lifting amount of the nozzle

1984-03-20

1985-02-26

Moy, Magdalen Y. C.

Internal-combustion engines

Charge forming device

Fuel injection system

123504, 2395333, F02M 3900

Patent

active

045012458

ABSTRACT:
A piston is rotatably received within a piston chamber formed in the nozzle holder for lifting together with the nozzle needle. An oil passage opens in the piston chamber in a manner closable by the lifting piston. After the closure of the oil passage, the lifting piston cooperates with the piston chamber to define a confined space whereby further lifting of the piston is prohibited. The piston remote from the nozzle needle has an end face thereof so configurated that the piston lifts through a stroke variable as the piston varies in circumferential position, from the time the nozzle needle starts lifting to the time the piston closes the oil passage. Preferably, the circumferential position of the piston is controlled by rotating means which rotates the piston in response to at least one parameter indicative of the operation of the engine.

REFERENCES:
patent: 3425635 (1969-02-01), Guertler
patent: 3430866 (1969-03-01), Guertler
patent: 3820723 (1974-06-01), Shipinski
patent: 4249499 (1981-02-01), Perr
patent: 4285471 (1981-08-01), Eklen et al.

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