Solenoid operated unit fuel injector with supply line backflow p

Details Solenoid operated unit fuel injector with supply line backflow p Solenoid operated unit fuel injector with supply line backflow p

1994-01-21

1995-02-21

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

239126, F02M 4702

Patent

active

053908511

ABSTRACT:
In accordance with a preferred embodiment of the invention, a solenoid operated unit fuel injector, for internal combustion engines of the type which are capable of having distinct timing, metering and injection periods, and in which the same supply line serves for the delivery of fuel to both a timing chamber and a metering chamber, is improved by providing a drilling in the injector barrel which leads directly from the timing fluid flow portion of the fuel supply circuit to an injector fuel drain path, and mounting a C-shaped spring valve on the injector body for controlling dumping of fuel through the drilling at a location above that of the timing and metering spill ports.

REFERENCES:
patent: 233432 (1980-10-01), Pitchford
patent: 2551053 (1951-05-01), Rogers
patent: 2590575 (1952-03-01), Rogers
patent: 4095617 (1978-06-01), Hodgson
patent: 4531672 (1985-07-01), Smith
patent: 4565320 (1986-01-01), Taniguchi et al.
patent: 5014918 (1991-05-01), Halvorsen

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