Electromagnetic proportional actuator

Details Electromagnetic proportional actuator Electromagnetic proportional actuator

1986-04-01

1987-09-15

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335262, H01F 708

Patent

active

046942700

ABSTRACT:
An electromagnetic proportional actuator comprises a plunger axially movably received in a cylindrical housing. An actuating member has one end thereof abutting against or connected to one axial end of the plunger. The plunger is displaced in response to electric current passing through a solenoid wound around an outer peripheral surface of the housing. A tubular member formed of a non-magnetic material is disposed between an outer peripheral surface of the plunger and an inner peripheral surface of the housing in such a manner that the plunger is axially slidable within the tubular member, to prevent the plunger from being attracted to the inner peripheral surface of the housing.

REFERENCES:
patent: 3331042 (1967-07-01), Erickson et al.
patent: 4468647 (1984-08-01), Gibas

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