PURPOSE: To simplify the connecting structure of the fuel leading-through pipe of a solenoid pump with its fuel discharging part and to facilitate the mount- removal operation of the fuel leading-through pipe.
CONSTITUTION: In a solenoid pump, it is driven by the feeding of an electric power, and in its fuel discharging part 8 for discharging the fixed quantity of the fluid sucked by this driving, an engagement-inserting room 82 is formed, and further, on this engagement-inserting room 82, a fuel leading-through pipe 801 is mounted removably. In this solenoid pump, an annular spring 63 for pressing the outer peripheral surface of the fuel leading-though pipe 801 from the oblique upside thereof in the state wherein it is engagement-inserted into the fuel discharging part 8 is provided. Further, in this solenoid pump, an ejection releasing ring 66 is provided inside the fuel discharging part 8. The ejection releasing ring 66 is in the state of the protruding of its head part engagement- inserted in an interposed way and in an axially-slidable way into the part present between the engagement-inserting room 82 and the fuel leading-through pipe 801. By the pressing of this head part, the pressing of the annular ring 63 on the outer peripheral surface of the fuel leading-through pipe 801 is released.
IWAMOTO TADASHI
KAWANISHI KEIJI
HIRAMATSU SHUICHI
