Patent
Method of manufacturing heat pipe wicks and arteries
John F. Leonard,Jerry E. Beam +1 more
TLDR
In this article, a new method for making a heat pipe wick and arteries includes drilling radial holes around the circumference of the heat pipe container at its ends and stringing monofilament polymer lines inside the container between corresponding holes.Abstract:
A new method for making a heat pipe wick and arteries includes drilling. Radial holes around the circumference of the heat pipe container at its ends and stringing monofilament polymer lines inside the container between corresponding holes. The container is rotated at a slow rate while a slurry of nickel powder mixed into a viscous binder of water, Polyox and Methocel is injected inside the container to cover the inside surface of the container and the lines. The rotational rate of the container is then increased to force the slurry to level out to an uniform depth set by the thickness of sleeves attached at each end of the container. Forced air is blown through the inside of the rotating pipe to dry the slurry and form a green wick. After stopping rotation of the pipe, it is then heated inside a sintering oven in a reducing atmosphere to disintegrate the binder and polymer lines and to leave a sintered metal wick having hollow longitudinal arteries.read more
Citations
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Patent
Integrated circuit heat pipe heat spreader with through mounting holes
TL;DR: In this article, a heat pipe with superior heat transfer between the heat pipe and the heat source and heat sink is presented, which is similar to the one we use in this paper.
Patent
Vapor chamber with sintered grooved wick
TL;DR: In this paper, a method for making a grooved heat pipe wick on an inside surface of a heat pipe container a layer of sintered powder between adjacent grooves that comprises no more than about six average particle diameters.
Patent
Heat transfer device and method of making same
TL;DR: In this paper, a capillary structure for a heat transfer device, such as a heat pipe, is provided having a plurality of particles joined together by a brazing compound such that fillets of the basting compound are formed between adjacent ones of the plurality and one or more vapor vents in the capillary structer.
Patent
Brazed wick for a heat transfer device and method of making same
TL;DR: In this article, a capillary structure for a heat transfer device, such as a heat pipe, is provided having a plurality of particles (27) joined together by a brazing compound (30) such that fillets (33) of the basting compound are formed between adjacent ones of the plurality.
Patent
Sintered grooved wick with particle web
TL;DR: In this paper, a heat pipe wick consisting of a plurality of individual particles having an average diameter is presented. But it does not specify the diameter of the individual particles in the wick.
References
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Patent
Sintered grooved wicks
TL;DR: In this article, a heat pipe capillary wick constructed from a sintered metal cylinder formed in close contact with the inner diameter of the heat pipe casing, and containing longitudinal grooves on the wick's inner surface, adjacent to the vapor space, is described.
Patent
Process for fabricating parts from particulate material
TL;DR: In this article, a method of manufacturing sintered parts from particulate material, e.g. metal or ceramic parts, is presented, in which a binder comprises at least a lower melting point component and a higher one, with the lower component remaining in a liquid state, becoming semi-solid or relatively soft upon cooling to ambient temperatures.
Patent
Tunnel wick heat pipes
TL;DR: In this article, a high performance heat pipe and a method for constructing it is described. Butler et al. describe a wick structure of sintered metal, which is formed directly into the heat pipe casing and contains simultaneously formed tunnels which permit the flow of large quantities of liquid with low pressure loss.
Patent
Method for removing binder from a green body
TL;DR: In this paper, a method and system whereby binder can be removed from a green body much more rapidly than in prior art systems without interfering with the integrity or aesthetics of the final part by providing a binder system having at least two components having differing melting points.
Patent
Heat pipe wick fabrication
Frank G. Arcella,Russell E Brumm +1 more
TL;DR: In this article, an economical heat pipe wick fabrication technique that yields wicks with fine pores at the liquid/vapor interface and unrestricted fluid flow beneath this interface is presented, which may be employed with either high or low thermal conductivity fluids.