Electromagnetic pump

Details Electromagnetic pump Electromagnetic pump

1988-07-14

1989-12-12

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

417418, 310 15, F04B 3504, F04B 4304, F04B 4504

Patent

active

048864293

ABSTRACT:
An electromagnetic pump comprising fluid operation chambers for discharging fluid to the outside; and electromagnet connected to an AC power source device for polarity switching for every half cycle of AC when energized; a permanent magent which moves together with the electromagnets; and a reciprocative shaft holding the permanent magnet, which reciprocates in the shaft direction when the electromagnet is energized. The width of a securement portion for the permanent magnet of the reciprocative shaft is relatively narrow compared to the other portions, and the permanent magnet consists of a pair of permanent magnet pieces bonded together by sandwiching the securement portion therebetween. The electromagnetic pump further comprises a fluid operation member for expanding or contracting the volume in the fluid operation chamber by the reciprocation movement of the reciprocative shaft so as to guide fluid out.

REFERENCES:
patent: 4500827 (1985-02-01), Merritt et al.
patent: 4608000 (1986-08-01), Tominaga
patent: 4626720 (1986-12-01), Fukasaku et al.

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