Heat pipe

Details Heat pipe Heat pipe

1993-06-17

1994-05-24

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

122366, F28D 1502

Patent

active

053140117

ABSTRACT:
A heat pipe is divided longitudinally by a divider wall into a vapor channel and into a liquid channel. The divider wall is provided, preferably at uniform axial spacings with bulges that form a restriction in the flow cross-sectional area of the vapor channel and an increase in the flow cross-sectional area of the liquid channel. A small diameter through bore is positioned at the peak of each bulge to connect the liquid channel with the vapor channel at this point. The reduced pressure at the restriction in the vapor channel is sufficient to suck gas or vapor bubbles collected under the bulge into the vapor channel, but insufficient to pull liquid into the vapor channel. The cross-sectional flow area of the liquid channel increases steadily toward each bulge, either from a point centrally between two bulges or from a point directly downstream of a bulge toward the next bulge as viewed in the flow direction of the liquid.

REFERENCES:
patent: 3844342 (1974-10-01), Eninger et al.
patent: 4058159 (1977-11-01), Iriarte
patent: 4854379 (1989-08-01), Shaubach et al.
Heat Pipe Design Handbook, vol. 1, by B&K Engineering Inc. pp. 149 & 152.

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