Motor operated valve
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United States of America Patent
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-
Mar 16, 2021
Grant Date -
Aug 20, 2020
app pub date -
Feb 4, 2020
filing date -
Feb 14, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A motor operated valve includes a feed screw mechanism and a stopper mechanism. The feed screw mechanism includes a guiding part including an external thread portion on an outer surface thereof, and a guided part that is a cylindrical member constituting a rotation shaft of a rotor, and including an internal thread portion, which is engaged with the external thread portion, on an inner surface thereof. The stopper mechanism includes a stopper portion provided on the guided part, and a stopping face formed integrally with the guiding part. When a valve element is driven by the motor to move in a valve closing direction, the stopping face stops the stopper portion to restrict the movement of the rotor in the valve closing direction.
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