Heat exchange – Intermediate fluent heat exchange material receiving and... – Liquid fluent heat exchange material
Reexamination Certificate
2007-05-02
2011-10-25
Walberg, Teresa J (Department: 3785)
Heat exchange
Intermediate fluent heat exchange material receiving and...
Liquid fluent heat exchange material
C165S104330
Reexamination Certificate
active
08042606
ABSTRACT:
A substrate formed of a suitable conductive-heat-transfer material is formed with small channels of a size selected to provide surface tension forces dominating a motion of a liquid-phase working fluid. A space above the channels of the substrate provides comparatively unobstructed space for the transport motion of a vapor phase of the working fluid effecting a heat-pipe effect in a multi-dimensional device. Channels may typically be formed in an orthogonal grid providing capillary return of liquids from a comparatively cooler condensation region to a comparatively warmer evaporation region, without any wicks other that the adhesion of the liquid phase working fluid to the vertices of the channels. Interference between the boundary layers of the liquid phase and the vapor phase of the working fluid are minimized by the depth of the channels, and the pedestals formed by the channel walls. Extremely small temperature differentials are thereby achieved between an outer surface of the substrate and an inner surface of the substrate when the liquid phase floods the substrate.
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Batty J. Clair
Jensen Scott M.
Utah State University Research Foundation
Walberg Teresa J
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