Fuel injection nozzle with integral solenoid valve

Details Fuel injection nozzle with integral solenoid valve Fuel injection nozzle with integral solenoid valve

1994-10-19

1996-08-06

Weldon, Kevin P.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395851, 239600, F02M 5102

Patent

active

055426107

ABSTRACT:
A fuel injection nozzle with integral solenoid valve for internal combustion engines, with an injection nozzle body having a nozzle needle movably disposed therein and being spring-biased to a normally closed position comprises a multipart solenoid valve housing including a first housing part receiving an annular magnetic coil and a second housing part disposed between the first housing part and the fuel nozzle body and having a disc-shaped magnetic armature mounted on an armature shaft movably supported therein, wherein the armature shaft is slightly shorter than the second housing part and has valve seating surfaces at its opposite ends for closing, in its upper end position, an opening of a pressurized fuel passage in the first housing part and, in its lower end position, an opening of a pressure relief channel in the nozzle body, the openings being formed in the planar faces of the first housing part and the nozzle body between which the second housing part, which includes the armature shaft, is sandwiched.

REFERENCES:
patent: 3640466 (1972-02-01), Steiger
patent: 3997117 (1976-12-01), Kohler et al.
patent: 4460015 (1984-07-01), Burl et al.
patent: 4899935 (1990-02-01), Yoshida et al.
patent: 5263695 (1993-11-01), Paul et al.

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