| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure equivalent to a one-directional pilot type solenoid valve wherein a main valve element is opened and closed as a pilot type one only in the forward direction flow and the main valve element works as a check valve for the reverse direction flow so as to make backward follow possible. SOLUTION: The fluid pressure of a first inlet-outlet port 14 and a second inlet-outlet port 15 acts on the valve opening direction with respect to the main valve element 20, and the check valve 37 permits flow of the fluid from a pressure chamber 21 to the second inlet-outlet port 15 in a pilot fluid flow passage, and forbids the reverse flow. COPYRIGHT: (C)2007,JPO&INPIT
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