Control valve
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United States of America Patent
Stats
-
Jan 31, 2017
Grant Date -
Mar 5, 2015
app pub date -
Aug 27, 2014
filing date -
Aug 27, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control valve includes a valve case, a spool accommodated in the valve case, an electromagnetic solenoid operating the spool along a spool axis extending in a longitudinal direction, the valve case including a pump port, an advanced angle port, a retarded angle port, and an unlocking port, the spool being operated to at least five positions, and a lock control fluid passage formed inside the spool in an attitude along the spool axis, the lock control fluid passage allowing the fluid from the pump port to be supplied only to the unlocking port irrespective of the position of the spool when the spool is operated to any one of the positions at which the fluid is supplied from the pump port to the unlocking port.
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