High-speed three-way solenoid valve for pressurized fluid, such as compressed air circuits
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United States of America Patent
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Jun 7, 1994
Grant Date -
N/A
app pub date -
Dec 2, 1991
filing date -
Nov 30, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A solenoid valve comprising an inlet conduit coaxial with an exhaust conduit; and an on-off element supported on the anchor of an electromagnet and moving substantially along the common axis of the two conduits for alternately connecting the inlet conduit and the exhaust conduit to an outlet conduit via a connecting compartment. The anchor normally closes the inlet conduit via flexible means, such as a permanent magnet in the magnetic circuit of the electromagnet, magnetized the opposite way to when the electromagnet is energized. The action of the electromagnet is such as to substantially eliminate that of the magnet on the anchor, which is thus set rapidly to the closed position over the exhaust conduit.
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