发明名称 |
Unidirectional heat pipe and wick |
摘要 |
A predominantly unidirectional wick primarily for use in unidirectional heat pipe wicks is disclosed. The wick is made by supporting magnetically susceptible particles on a wire screen and moving the screen inside a magnetic field until the characteristic cone or point shapes assumed by the particles are aligned in a laid down orientation. The particles are then heat treated to yield a sintered wick. An example of the disclosed wick made with nickel powder demonstrates improved wicking in the direction pointed to by the laid down points. The invention also includes a combination with the spinning pipe-slurry method for making heat pipe wicks. Magnetically susceptible powder is mixed into a viscous binder to make a slurry, then injected inside a rotating cylindrical heat pipe container. A magnetic field is created around the spinning container and varied to align the particles in a desired structure. The slurry is dried while still spinning to retain the desired structure and then heat treated to yield a sintered wick.
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申请公布号 |
US4964457(A) |
申请公布日期 |
1990.10.23 |
申请号 |
US19880261808 |
申请日期 |
1988.10.24 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
发明人 |
LEONARD, JOHN F.;HAGER, BRIAN G. |
分类号 |
F28D15/04 |
主分类号 |
F28D15/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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