| 摘要 |
PURPOSE:To prevent removal of valve body from valve seat and incorrect returning of valve body by providing a valve seat having a fuel through-hole and a recess, a valve body to be coupled to the recess for opening/closing the fuel through-hole and a member for limiting the maximum displacement of valve body. CONSTITUTION:A board armature 4 is arranged through non-magnetic member or a spacer 3 to the lower end of C-type core 2 wound with a coil 1. While an adjusting spring 6 is provided to a holder 5 for supporting the core 2 to insert a ball 8 through a spring 7 into a screw hole. The ball 8 is secured to the upper end of a stem 9 penetrating through a hole made at the right end of the armature 4 while the lower end of the stem 9 is secured to a valve body having an arched contacting section or a ball 10. Upon power supply to the coil, the armature 4 is attracted to the core 2 to lift the ball 10 thus to open a fuel through-hole 12 made through the valve seat 11. Consequently, the valve body 10 is never removed from the valve seat 11 thus to never cause incorrect returning. |
