| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solenoid control valve capable of generating no leakage flow rate between an equalizing chamber and a secondary chamber, when closing a valve element, in simple constitution. <P>SOLUTION: A primary chamber 11 and the equalizing chamber 15 communicated with an inlet port 1a are communicated through an equalizing introduction passage 16. A through-hole 18 is provided between the secondary chamber 12 and the equalizing chamber 15 communicated with an outlet port 1b. The piston 23 of a valve rod 2 is inserted into the through-hole 18. A diameter of the piston 23 is made same to that of the valve element 21. A tapered face 18b is formed on the periphery of the piston and an opening edge 18a of the through-hole 18. An elastic member 41 is pressed onto the opening edge 18a of the through-hole 18 and the piston 23, with a guide spring 44, under a closed state of the valve element 21. The elastic member 41 is applied with a back pressure from the equalizing chamber 15. <P>COPYRIGHT: (C)2010,JPO&INPIT |
