Electromagnetically actuatable fuel injection valve

Details Electromagnetically actuatable fuel injection valve Electromagnetically actuatable fuel injection valve

1986-09-29

1987-10-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With heating or cooling means for the system or system fluid

In terminal element

239585, 25112921, F02M 5106

Patent

active

047008911

ABSTRACT:
A magnetic injection valve for injecting fuel into the intake tract of internal combustion machines, which is distinguished by particularly good internal cooling. A magnetic coil wound onto a coil carrier is located in the valve, being introduced into a valve housing and surrounds a ferromagnetic core. The core acts upon an armature which is connected to a movable valve needle. A bushing in the core and a sleeve located outside the core are arranged such that the fuel, emerging from an inflow tract of a supply device flows via the sleeve serving as a fuel line and reaches the interior of the valve housing that receives the magnetic coil; after flowing virtually completely around the magnetic coil, the fuel leaves this interior via a bore and flows back between the bushing and the core as far as the end of the bushing, and then flows on through the bushing to reach the armature to flow on to the valve seat. For better cooling of the magnetic coil, flow conduits are machined into the coil holder such that the fuel flow virtually surrounds the coil.

REFERENCES:
patent: 4116389 (1978-09-01), Furtah et al.
patent: 4483484 (1984-11-01), Hafner et al.
patent: 4625919 (1986-12-01), Soma et al.

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