Fuel injection device for internal combustion engines, in partic

Details Fuel injection device for internal combustion engines, in partic Fuel injection device for internal combustion engines, in partic

1982-09-28

1984-08-07

Moy, Magdalen Y. C.

Internal-combustion engines

Charge forming device

Fuel injection system

239 88, 239 95, F02M 5702

Patent

active

044637250

ABSTRACT:
A fuel injection device is proposed which has a free piston hydraulically driven by a pump piston and controlling the relieving of the pump work chamber. To this end, the free piston is embodied in two parts, comprising a control piston and a relief piston displaceable relative thereto and oriented toward the pump work chamber. The two pistons enclose between them a relief chamber, which at the end of supply can be made to communicate via a relief conduit with a chamber of lower pressure. This free piston is also usable with fuel injection pumps which supply the injection quantity via a long pressure line to the injection nozzles located on the engine; however, it is particularly advantageously usable with a pump
ozzle, in which the injection pump and the injection nozzle are combined into a single component.

REFERENCES:
patent: 2424943 (1947-07-01), Nicolls
patent: 4092964 (1978-06-01), Hofer et al.
patent: 4134549 (1979-01-01), Perr
patent: 4250857 (1981-02-01), Taplin
patent: 4279385 (1981-07-01), Straubel et al.
patent: 4378774 (1983-04-01), Kato
patent: 4385609 (1983-05-01), Kato
patent: 4396151 (1983-08-01), Kato et al.
patent: 4399793 (1983-08-01), Poore et al.

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