Title:
HEAT PIPE
Document Type and Number:
WIPO Patent Application WO1997008483
Kind Code:
A3
Abstract:
An improved heat pipe construction includes an evaporator for evaporating a low-temperature boiling fluid so as to generate vapors thereof, and a condenser for condensing the vapors so as to provide a condensate; wherein a predetermined one of the evaporator and the condenser includes a first heat transfer arrangement and the other one of the evaporator and the condenser comprises a second heat transfer arrangement, and wherein the first heat transfer arrangement includes a generally tubular housing; a plurality of substantially flat heat transfer portions having heat transfer surfaces operative to exchange thermal energy with the fluid in contact therewith, thereby to convert the fluid from a first fluid form to a second fluid form, wherein the heat transfer portions also have fluid flow ports provided therein for permitting fluid circulation transversely through the plurality of heat transfer portions between the first and second heat transfer arrangements, and the heat transfer portions are arranged within the housing so as to be in thermally conductive touching contact with the wall surfaces and such that the heat transfer surfaces are oriented transversely with respect to the wall surfaces; apparatus for causing capillary wetting of either the inner housing surface or the heat transfer surfaces of the heat transfer portions; and apparatus for thermally coupling the housing with an external mass having a temperature in a known range, wherein the other one of the evaporator and the condenser is the second heat transfer arrangement which includes tubular apparatus having an inward-facing surface for receiving the fluid in the second fluid form from the first heat transfer arrangement and for thermally coupling the fluid with an external mass having a temperature in a known range, thereby to convert the fluid back to the first fluid form.
Inventors:
LEVIN ALEXANDER (IL)
Application Number:
PCT/IL1996/000093
Publication Date:
May 15, 1997
Filing Date:
August 30, 1996
Export Citation:
Assignee:
REFMED CRYO MEDICAL PRODUCTS L (IL)
LEVIN ALEXANDER (IL)
LEVIN ALEXANDER (IL)
International Classes:
F24H3/00; F28D15/02; F28F1/40; H01L23/427; (IPC1-7): F16L/
Foreign References:
| US3414475A | 1968-12-03 | |||
| US4880053A | 1989-11-14 | |||
| US5335720A | 1994-08-09 | |||
| US3603382A | 1971-09-07 |
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