Wavy tube heat pumping

Details Wavy tube heat pumping Wavy tube heat pumping

1983-04-18

1985-12-03

Cline, William R.

Heat exchange

Geographical

165163, 606412, 62260, F28D 1500

Patent

active

045561010

ABSTRACT:
A PVC conduit about 4" in diameter and a little more than 40 feet long is adapted for being seated in a hole in the earth and surrounds a coaxial copper tube along its length that carries Freon between a heat pump and a distributor at the bottom. A number of wavy conducting tubes located between the central conducting tube and the wall of the conduit interconnect the distributor with a Freon distributor at the top arranged for connection to the heat pump. The wavy conducting tubing is made by passing straight soft copper tubing between a pair of like opposed meshing gears each having four convex points in space quadrature separated by four convex recesses with the radius of curvature of each point slightly less than that of each concave recess.

REFERENCES:
patent: 2031551 (1936-02-01), Sorensen
patent: 4042012 (1977-08-01), Perry et al.
patent: 4089373 (1978-05-01), Reynolds et al.
patent: 4094356 (1978-06-01), Ash et al.
patent: 4375831 (1983-03-01), Downing
patent: 4388966 (1983-06-01), Spiegel

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