| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solenoid valve that effectively reduces raspy noise to be generated when a movable iron core is magnetically attracted to a fixed iron core without hindering reduction in size and power consumption of the solenoid valve. <P>SOLUTION: The solenoid valve includes: a magnet coil 2; a fixed iron core 3 which is exited by supplying power to the magnet coil 2; a movable iron core 4 which is exited by supplying power to the magnet coil 2 and is magnetically attracted to the fixed iron core 3; a valve body 41 which moves integrally with the movable core 4 close to or away from a valve seat 15; and a spring 5 biased in the direction of separating the movable iron core 4 from the fixed iron core 3. The fixed iron core 3 comprises a first post 31 which is arranged on the side of an end opposite the movable iron core 4 on the inner periphery of the magnet coil 2, and a second post 32 which is arranged on the side of the movable iron core 4 of the first post 31 on the inner periphery of the magnet coil 2. A buffer body 34 is interposed between the first post 31 and the second post 32 in the non-sealed state with respect to gaps G1 to G3 between the first post 31 and the second post 32. <P>COPYRIGHT: (C)2013,JPO&INPIT |
