Electromagnetically actuatable fuel injection valve

Details Electromagnetically actuatable fuel injection valve Electromagnetically actuatable fuel injection valve

1987-10-30

1989-01-03

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

239456, 25112915, F16K 3102, B05B 132

Patent

active

047950978

ABSTRACT:
An electromagnetically actuatable fuel injection valve, which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece, in which a valve seat body is disposed, included are two magnet coils, two cores and one armature, which has a spherical guide section and is connected to a valve needle. The spherical guide section is slidably supported with its circumference in a guide bore of the valve seat body and in its stroke movement away from the core is limited by a tapered stop opening which adjoins the guide bore. Radially extending grooves are machined into the wall of the stop opening and are coextensive in the wall of the guide bore, so that the area of contact between the spherical guide section and the stop opening is decreased.

REFERENCES:
patent: 4142683 (1979-03-01), Casey et al.
patent: 4394971 (1983-07-01), Gaskell
patent: 4454990 (1984-06-01), Lewis
patent: 4494701 (1985-01-01), Hensley et al.
patent: 4653720 (1987-03-01), Knapp et al.
patent: 4708289 (1987-11-01), Szablewski et al.

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