Heat pipe with hydrophilic layer and/or protective layer
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United States of America Patent
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-
Jan 25, 2011
Grant Date -
Dec 8, 2005
app pub date -
May 31, 2005
filing date -
Jun 7, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A heat pipe (1) includes a shell (20), a protective layer (10) formed on an outer surface of the shell, a wick (30) and a hydrophilic layer (40) sequentially formed on an inner surface of the shell, and a working fluid contained in the shell. A material of the shell is metal, such as copper, aluminum, or a copper-aluminum alloy. The protective layer is formed of nanomaterials, such as carbon nanotubes, nano-sized copper particles, nano-sized aluminum particles, or nano-sized particles of a copper-aluminum alloy. The wick is made from a mixture of carbon fibers and carbon nanocapsules. The hydrophilic layer is made from nanomaterials, for example, titanium dioxide, zinc oxide, alumina, or any mixture thereof.
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