Internal-combustion engines – Charge forming device – With fuel pump
Patent
1997-12-08
2000-11-28
Miller, Carl S.
Internal-combustion engines
Charge forming device
With fuel pump
417466, 92 605, F02M 3704
Patent
active
061521132
ABSTRACT:
A high-pressure fuel injector of a diesel engine includes a nozzle body, a pressure chamber body and a pressure piston. The nozzle body has a cavity in a central region thereof and a closed top end formed integrally thereon, the nozzle body includes a solenoid assembly integrally mounted at an upper side; a fuel feeding passage formed through the nozzle body at a side, the fuel feeding passage having a fuel feeding port communicating with the cavity; and at least one of injection passages formed through the nozzle body at a side, the injection passage having fuel outlet ports communicating with the cavity. The pressure chamber body is able to move up and down in the nozzle body to increase secondly the pressure of a trapped fuel therein, which includes an inlet port formed at a side thereof for selectively communicating with the fuel feeding port; and at least one of outlet ports formed at a side thereof for selectively communicating with the fuel outlet ports. The pressure piston disposed within the moving means and fixed on the closed top end of the nozzle body through a pressure rod.
REFERENCES:
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patent: 3380387 (1968-04-01), Kofink
patent: 3387562 (1968-06-01), Voit
patent: 4308475 (1981-12-01), Haeck
patent: 4919102 (1990-04-01), Iwabuchi
patent: 5044900 (1991-09-01), Cavallaro
patent: 5630401 (1997-05-01), Binversie
patent: 5779454 (1998-07-01), Binversie
Hyundai Motor Company
Miller Carl S.
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