| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electromagnetic pump solving either one or both the noise prevention in an oil pipe for connecting an oil tank to a device body, or/and the constant provision of stable combustion by preventing pulse combustion. <P>SOLUTION: This electromagnetic pump is provided with an electromagnetic coil 34 repeating excitation/non-excitation by turning ON/OFF an excitation current to be fed, a plunger 5 reciprocating in a cylinder 2 by the excitation/non- excitation of the electromagnetic coil 34, and sucks/delivers fuel oil by closing a suction check valve 10 and opening a delivery check valve 28 in the one- directional movement of the plunger 5, and opening the suction check valve 10 and closing the delivery check valve 28 in its reverse-directional movement. This pump is also provided with a bellows-tube type elastic accumulator 20 having its outer circumferential surface closely stuck to the pipe part inside and formed with an air layer 22 partitioned into a plurality of parts in either one side or both sides of the suction check valve 10 or/and the delivery check valve 28. This constitution can prevent noise and provide the stable combustion. <P>COPYRIGHT: (C)2003,JPO</p> |
