Solenoid valve and oil pump
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 10, 2020
Grant Date -
Dec 7, 2017
app pub date -
Jun 1, 2017
filing date -
Jun 1, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A solenoid valve includes: a cylindrical spool that has an annular groove in an outer surface and moves along an axial direction under a driving force generated by a current being applied to a solenoid part; a cylindrical sleeve that has a through-hole capable of communicating with the annular groove and houses the spool; and an urging member that urges the spool by an urging force acting in a direction opposite from a direction in which the driving force is generated. When no current is applied to the solenoid part, a part of the through-hole communicates with the annular groove. When a current is applied to the solenoid part, an area of communication between the through-hole and the annular groove increases as the spool moves under the driving force acting against the urging force.
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Family
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