Fluid sprinkling – spraying – and diffusing – Flow deflecting or rotation controlling means – Fluid rotation inducing means upstream of outlet
Patent
1988-05-20
1990-03-13
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Flow deflecting or rotation controlling means
Fluid rotation inducing means upstream of outlet
239585, F02M 5106
Patent
active
049077457
ABSTRACT:
A fuel injection valve and a method for adjusting its fuel quantity are proposed. The fuel injection valve is used to inject fuel into the intake system of a mixture-compressing internal combustion engine having externally supplied ignition. It has a valve needle, which when a magnet coil is excited is attracted toward a core by an armature connected to the valve needle, whereupon the valve needle with a sealing seat formed on it, lifts away from a valve seat face embodied on a nozzle body. According to the invention, the nozzle body is closed off by a bottom embodied in the form of a small plate, which is part of the nozzle body and in which a plurality of calibrated injection ports are located. The closure of the valve needle is embodied by a tang, which extends as far as the immediate vicinity of the bottom. The injection ports are produced by erosion thereof, while their calibration for the sake of static fuel quantity adaptation is performed by hydraulic grinding with a flowable grinding medium.
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Forman Michael J.
Greigg Edwin E.
Kashnikow Andres
Robert & Bosch GmbH
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