Browse Prior Art Database

Metallic Wick for a Heat Pipe

IP.com Disclosure Number: IPCOM000073977D
Original Publication Date: 1971-Feb-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 77K

Publishing Venue

IBM

Related People

Carbone, S: AUTHOR [+3]

Abstract

In a heat pipe, vapor heat transfer moves heat energy from the evaporator region at one end of the pipe to the condensor region at the other end. Capillary action returns the condensed vapor back to the evaporator region to complete the cycle of operation. The capillary action is provided by a wick-type material which lines the interior of the heat pipe.

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Metallic Wick for a Heat Pipe

In a heat pipe, vapor heat transfer moves heat energy from the evaporator region at one end of the pipe to the condensor region at the other end. Capillary action returns the condensed vapor back to the evaporator region to complete the cycle of operation. The capillary action is provided by a wick-type material which lines the interior of the heat pipe.

This process forms and firmly attaches a wick to the interior of a heat pipe so that the heat released upon the condensation of the vapor is readily transferred from the wick to the heat pipe walls by conduction. The heat pipe is formed from a flat sheet of heat conductive nonferromagnetic material 1 which is positioned within an electroless plating bath 2 over a specially formed electromagnet pole piece 3, as shown in the simplified exploded view of drawing A. A uniform dispersion of fine magnetic particles is placed within bath 2 and allowed to settle over the surface of plate 1 while the plating action is inhibited, for example, by lowering the temperature of the bath below that at which plating takes place. After a uniform distribution of magnetic particles covers plate 1, pole piece 3 is magnetically energized to produce slightly divergent flux along parallel lines which cause the erection of bristle-like formations 4 of magnetic particles, as shown in drawing B. Plating action then is initiated to place a conformal coating over the bristles, as well as over the surface of plate...