| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve equipped with a valve scarcely with erroneous movements during the circulation of fluid.SOLUTION: The solenoid valve includes: a solenoid part for controlling a plunger 3 in reciprocating movements by applying electricity; a cylindrical sleeve 7 mounted in a state of insertion to a target object 1 for mounting and having a plurality of fluid communication holes 72 in a peripheral wall part 71; a plurality of lands L formed at a peripheral part in an annularly protruded shape; and a cylindrical valve 6 capable of sliding along the inner peripheral face of the sleeve 7 along the movement of the plunger 3. Further as for a plurality of openings 72 of the sleeve 7, there are provided a flow receiving port 72a for receiving a fluid from a fluid supply source; a plurality of fluid supply and discharge ports 72b for supplying and discharging the fluid to a specific part to be supplied with the fluid according to the sliding movement of the valve 6; and a drain port 73 for discharging the fluid returned from the part to which the fluid is supplied to the fluid supply and discharge port 72b to the outside of the sleeve 7. There is also provided a groove part 74 at an outside surface of the sleeve 7, for circulating the fluid discharged from the drain port 73, in a state separated from the fluid receiving port 72a and the plurality of the fluid supply and discharge port 72b. |
