Electromagnetically actuatable fuel injection valve

Details Electromagnetically actuatable fuel injection valve Electromagnetically actuatable fuel injection valve

1987-06-17

1989-03-21

Butler, Douglas C.

Fluid sprinkling, spraying, and diffusing

Terminal outlet formed between parts mounted for relative...

Axially movable outlet part

239585, 25112918, B05B 130, F16K 3110

Patent

active

048135992

ABSTRACT:
The invention relates to an electromagnetically actuatable fuel injection valve which is used to supply fuel to a mixture compressing internal combustion engine. The fuel injection valve comprises a valve housing provided with an extension in which a valve seat body is disposed. A magnetic coil is mounted on each of the pole parts and a permanent magnet is disposed between the poles of the pole parts. The valve seat body is connected to a guide via a collet. The guide, collet and valve seat body are penetrated by a valve needle which is connected at its one end to an armature and which, at its other end, ends in a closing end. In the guide is a guide bore which is adapted to radially guide a spherical head portion of the valve needle and which then tapers into an abutment face, against which face the valve needle rests by way of the head when the injection valve is open. To open the valve, the valve needle is moved outwardly, thereby uncovering an ejection opening between a valve seat and the closing head. The valve seat body and collet may be screwed together for the purpose of adjusting the valve stroke.

REFERENCES:
patent: 2602703 (1952-07-01), Camner
patent: 4373671 (1983-02-01), Giardini
patent: 4394971 (1983-07-01), Gaskell
patent: 4653720 (1987-03-01), Knapp et al.
patent: 4704591 (1987-11-01), Hafner
patent: 4708289 (1987-11-01), Szablewski et al.

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