Twin coil apparatus and energizing structure therefor

Details Twin coil apparatus and energizing structure therefor Twin coil apparatus and energizing structure therefor

1982-01-25

1989-12-05

Freeh, William L.

Pumps

Motor driven

Electric or magnetic motor

318135, 318122, 318134, F04B 1704, H02K 3300

Patent

active

048849545

ABSTRACT:
An electrical device which includes axially aligned solenoids and a plunger with two cores, each of which is located at least partially in a respective one of the solenoids. A controller, operated by synchronism with the plunger, is used to energize the solenoids alternately so that the plunger is reciprocated relatively to the solenoids by the action of the resulting magnetic field on the cores. The device may be combined with a pump, particularly a piston pump, to provide a compact, efficient pumping unit which may be submersible.

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