Electromagnetic plunger pump

Details Electromagnetic plunger pump Electromagnetic plunger pump

1981-04-24

1983-03-15

Smith, Leonard E.

Pumps

Motor driven

Electric or magnetic motor

417441, F04B 1704

Patent

active

043766188

ABSTRACT:
An electromagnetic plunger pump includes a plunger which is electromagnetically activated. Normally, the plunger is supported in a balanced condition by a pair of opposing springs. Further, the plunger is vertically pierced by a hole extending along an axial line in which the plunger reciprocates in the vertical direction, responsive to an application of an intermittent electromagnetic force. A valve body is loosely fitted into a rod inserted in the vertical hole, reaching a contact portion of a discharge plunger, which interlocks with the electromagnetic plunger. The discharge plunger is forced shut by a spring acting in the valve closing direction. The valve body engages a valve seat to close a discharge passage during a pump shut-down. The valve body is liberated from the valve seat to open the discharge passage during pump operation.

REFERENCES:
patent: 2405143 (1946-08-01), Holthouse
patent: 2474349 (1949-06-01), Dickey et al.
patent: 3874822 (1975-04-01), Nakamura
patent: 4308475 (1981-12-01), Haeck

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