Electromagnetic pump

Details Electromagnetic pump Electromagnetic pump

1992-12-30

1994-08-23

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

F04B 1704

Patent

active

053402880

ABSTRACT:
The inside-outside positional relationship between a field core of an electromagnet and an armature provided on a piston in an electromagnetic pump is reversed as compared with the prior art pump, that is, an annular armature is placed outside and a field core is placed inside the armature. The annular armature attached to the piston reciprocates in the axial direction thereof and the inside surface of the armature is opposed to the outside circumference of the field core of an electromagnet having formed thereon a plurality of outwardly and radially projecting magnetic poles, and being fixed to a part of a casing.

REFERENCES:
patent: 3542495 (1970-11-01), Barthalon
patent: 4116591 (1978-09-01), Mardell
patent: 5100304 (1992-03-01), Osada et al.

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