| 摘要 |
PURPOSE:To improve operational response of switching by providing a magnetism intercepting member so as to intercept magnetism from a solenoid. CONSTITUTION:The middle part in the axial direction of a movable iron core 3 is cut to remove the predetermined width of the middle part while the removed part is replaced by a magnetism intercepting distance piece 10 to connect the movable cores. A valve mechanism is provided at the inside of the movable core 3. When the solenoid 1 is excited, magnetic housings 5, 5', a valve casing 4 and a solenoid inner tube 7 form a magnetic path and the movable core 3 is attracted to the direction of the valve casing. At the same time, valve plates 18, 18', a spring 19, a spherical valve 16 and the like are moved and the spherical valve 16 adhered to the valve seat at the inside end of a valve seat nozzle 12 with a predetermined surface pressure. |
