Liquid helium pump

Details Liquid helium pump Liquid helium pump

1980-04-11

1983-12-20

Gluck, Richard E.

Pumps

Motor driven

Electric or magnetic motor

417417, 417418, 417472, 310 27, F04B 1704, F04B 4502

Patent

active

044214642

ABSTRACT:
A pump for driving a liquid, particularly liquid helium, has an electromatic drive contained in its entirety in the pump housing for generating an axially oriented force to reciprocate the pumping member. The electromagnetic drive has a stationary electromagnet supported in the pump housing and including an annular air gap and an energizing solenoid for generating a magnetic flux in the air gap. The electromagnetic drive further has a coil carrier attached to the pumping member to move therewith as a unit; the coil carrier has a travelling path passing through the air gap and being parallel to the pump axis. Further, a moving coil is mounted on the coil carrier for traversing the magnetic flux in the air gap, whereby an electromagnetic force parallel to the pump axis is exerted on the moving coil for displacing the moving coil, the coil carrier and the pumping member as a unit.

REFERENCES:
patent: 2669937 (1954-02-01), Presentey
patent: 2926615 (1960-03-01), Coffey

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