High-speed solenoid valve for a fluid under pressure, e.g. for pneumatic circuits
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United States of America Patent
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Sep 17, 1991
Grant Date -
N/A
app pub date -
May 30, 1990
filing date -
Jun 2, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solenoid valve having an electromagnet arranged in a chamber into which an inlet duct and an outlet duct of the solenoid valve open, whereby the coil is constantly ventilated by the compressed air itself. The armature of the electromagnetic has a disc for shutting off the outlet duct and is formed by a plate which is urged into the closed position of the solenoid valve by the compressed air. The plate rotates about a beading of elastomeric material and exhibits extremely low inertia, whereby the solenoid valve can be operated at high frequency. The chamber can house a plurality of electromagnets, each of which controls a shut-off member for a corresponding outlet duct. The body also comprises an interchangeable shell which has funnel-shaped chambers for directing the air of at least one set of ducts to a common outlet aperture.
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