Fuel injector electromagnetic metering valve

Details Fuel injector electromagnetic metering valve Fuel injector electromagnetic metering valve

1993-12-28

1995-03-07

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Injection nozzle opened by relieving supply

2395338, 25112916, B05B 130

Patent

active

053950488

ABSTRACT:
The valve comprises a shutter for the drain conduit of the control chamber f the injector; and an electromagnet having a fixed core with a seat for a coil which is energized to operate the armature controlling the shutter. The core presents two coaxial annular pole pieces, the outer one of which is shorter than the inner one and fitted with a ring of magnetic material partially closing the seat and enabling a substantial reduction in the diameter of the armature. The smaller diameter of the armature enables it to be fitted to the body of the injector by means of a larger-diameter threaded ring nut. The armature, together with a return spring, is fitted to a plate having a sleeve for guiding the stem; and the assembly is then fitted to the body independently of the electromagnet by screwing the ring nut inside a seat in the body.

REFERENCES:
patent: 1664612 (1928-04-01), French
patent: 1944113 (1934-01-01), Shenton
patent: 4778112 (1988-10-01), De Concini et al.
patent: 4946106 (1990-08-01), Turchi et al.
patent: 5046472 (1991-09-01), Linder
patent: 5183209 (1993-02-01), Ricco et al.
patent: 5188336 (1993-02-01), Graner et al.
patent: 5238224 (1993-08-01), Horsting
patent: 5246165 (1993-09-01), De Matthaeis et al.

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