Electromagnetically actuatable valve, in particular a fuel injec

Details Electromagnetically actuatable valve, in particular a fuel injec Electromagnetically actuatable valve, in particular a fuel injec

1983-12-06

1985-03-05

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With system fluid relief or return to supply

Recirculation within nozzle

239585, F02M 6904, F02M 5108, F16K 3106

Patent

active

045026327

ABSTRACT:
An electromagnetically actuatable valve is proposed which serves in particular to inject fuel into the intake tube of internal combustion engine operating with fuel injection systems. The fuel injection valve includes a valve housing, a shell core having a magnetic coil and a flat armature, which is positively connected to a valve element comprising a ball which protrudes through a central opening in a guide diaphragm to cooperate with a fixed valve seat. The guide diaphragm guides the ball in the radial direction relative to the valve seat. Under spring tension, the flat armature, having a guide crown, contacts the guide diaphragm and is thus guided in a plane parallel to the end face of the shell core. A first fuel fitting comprises a portion of a valve housing preshaped by a non-cutting manufacturing method; a second fuel fitting is fixed inside the first fuel fitting in such a manner that a flow conduit is defined between the first and the second fuel fittings. The fuel flowing in via the second fuel fitting proceeds to the valve seat; when the valve is open, a portion of the fuel is delivered there to a nozzle bore in order to be metered. The non-metered fuel flows around the magnetic element and proceeds via the flow conduit into a fuel return flow line.

REFERENCES:
patent: 3001757 (1961-09-01), Ball
patent: 3567135 (1971-03-01), Gerbert
patent: 4040569 (1977-08-01), Knapp
patent: 4201172 (1980-05-01), J/a/ ggle et al.
patent: 4264040 (1981-04-01), Saito
patent: 4310123 (1982-01-01), TePastte
patent: 4313571 (1982-02-01), Bellicardi et al.
patent: 4365747 (1962-12-01), Krauss et al.

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