Ferrofluid piston pump for use with heat pipes or the like

Details Ferrofluid piston pump for use with heat pipes or the like Ferrofluid piston pump for use with heat pipes or the like

1988-03-24

1990-11-06

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

16510423, 417418, 384 12, 384 42, 384133, E28D 1502

Patent

active

049678310

ABSTRACT:
A long life, very low friction pump for use in a heat pipe pump or the like s disclosed. A first pump uses magnetically confined ferrofluid rings are both sealer and lubricant for a sliding pump piston in a two sided piston pump that minimizes the seal pressures on both sides of the ferrofluid seals. A second pump uses a magnetically confined ferrofluid slug as a self-sealing and self-repairing pump piston.

REFERENCES:
patent: 4531846 (1985-07-01), Raj
patent: 4628384 (1986-12-01), Raj et al.
patent: 4630943 (1986-12-01), Stahl et al.
patent: 4645960 (1987-02-01), Hoffman
patent: 4717266 (1988-01-01), Hart et al.
What are Ferrofluids?, Ferrofluids Corporation, 1986.

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