| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve device that reduces power consumption with a simple structure. SOLUTION: The solenoid valve device 10 includes: a solenoid 15; a body 12; a fluid pressure passage which exists from an introducing port 16 to a lead port 18 leading hydraulic fluid; a valve chamber 24 which is formed further on a lead port 18 side than a valve seat 22; a valve opening/closing shaft 26 of which one end side is inserted in the valve seat 24 and an abutment part allows the fluid pressure passage to open/close; a driving chamber 28 which is configured to move the valve opening/closing shaft 26 toward an axial direction when the other end side of the valve opening/closing shaft 26 is inserted to flow current to the solenoid 15; an introducing flow passage 38 which is formed between the solenoid 15 and the valve chamber 24, and introduces a fluid pressure to the driving chamber 28 so as to generate force on the valve opening/closing shaft 26, the fluid pressure being equivalent to that of the hydraulic fluid introduced from the introducing port 16, and the force acting in a direction toward the valve seat 22; and an O-ring 100 which is arranged between the valve chamber 24 and the driving chamber 28 so as to adhere to the circumference of the valve opening/closing shaft 26, and separates the sides of the valve chamber 24 and the driving chamber 28 from one another. COPYRIGHT: (C)2011,JPO&INPIT |
