| 摘要 |
PROBLEM TO BE SOLVED: To prevent wear caused by reducing a lateral direction attraction force in an axial core direction by keeping a clearance between a reciprocating member and a guide member larger than a clearance between two bobbin members and the reciprocating member. SOLUTION: An electromagnetic pump 10 includes a cylindrical guide 12 liquid-tightly inserted in an inner hole of a body 11. The bobbins 13, 14 are fitted in the inner hole 11a of the body 11 while abutting on both side surfaces of the guide 12. A plunger 24 is fitted in the guide 12 and the inner holes 21 of the bobbins 13, 14, and delivery side main bodies 38, 39 are provided so as to be adjacent to end surfaces of the plunger 24. Suction check valves 60, 61 are provided at both end surfaces of the plunger 24, and delivery check valves 57, 58 are provided at delivery side main bodies 38, 39. COPYRIGHT: (C)2009,JPO&INPIT
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