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

1990-04-02

1991-04-09

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

16510423, 417418, 417417, 384 12, 384 42, 384133, F28D 1502

Patent

active

050056395

ABSTRACT:
A long life, very low friction pump for use in a heat pipe pump or the like is disclosed. A first pump uses magnetically confined ferrofluid rings as 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: 4572285 (1986-02-01), Botts et al.
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, Jr. et al.
What are Ferrofluids?, pamphlet copyrighted in 1986, by Ferrofluids Corporation.

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