Electromagnetic valve
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United States of America Patent
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-
Aug 13, 1985
Grant Date -
N/A
app pub date -
Dec 16, 1983
filing date -
Dec 30, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electromagnetic valve including an electromagnetic unit having a magnetic core, a coil bobbin arranged around the core, an electromagnetic coil wound around the bobbin, a stationary yoke and a first valve seat formed in a flange of the coil bobbin and a valve unit having a movable yoke, a valve stopper provided at an end of the movable yoke whose other end is rotatably coupled with the stationary yoke and a second valve seat provided in opposition to the valve stopper. When the coil is not energized, the valve stopper is resiliently urged against the second valve seat and a first fluid passage connected to the first valve seat is communicated with a valve chamber in the valve unit, but when the coil is energized, the movable yoke is attracted to the core to urge the valve stopper against the first valve seat and a second fluid passage connected to the second valve seat is communicated with the valve chamber.
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