| 摘要 |
PURPOSE:To embody the injection of gas fuel after reducing the wear and slide resistance of a movable body. CONSTITUTION:At a housing 1 having a valve hole 9 at its tip, a movable body 22, equipped, at its tip, with a valve body 11 capable of opening/closing the valve hole 9 is housed so as to be able to be moved axially, and magnetic fluids 15 retained by means of magnets 16, 17 provided at the housing 1 are filled between the movable body 22, and the housing 1. |
