| 摘要 |
A heat exchanger of the tube and fin type in which either straight or U-shaped elongated heat pipes are employed as the tube members. The radiating fin members are arranged in parallel fashion in a direction transverse to the heat pipe members and are spaced in either a uniform or non-uniform manner. The heat pipes are filled with a working fluid and further may contain a porous sleeve whereby the liquid, upon boiling is driven to a first end of the tube, condensed and returned to the opposite end of the tube by capillary action so as to maintain a highly uniform temperature level along the length of the heat pipes. The porous return medium may be omitted where tubes are oriented with condensing section above evaporating section. The tube and fin structure is provided with an isolating barrier between at least two of the fins which are located intermediate the ends of the structure, which isolating barrier is then arranged substantially coplanar with a barrier wall separating the region of elevated temperature from a region of reduced temperature level. The isolating barrier may be formed of an insulating or conductive material. Blower means are preferably provided in each of the aforesaid regions for moving air contained within its specific region over the radiating fins. The heat pipe members transfer the heat from the region of elevated temperature level to the region of reduced temperature level in a highly efficient manner so as to yield a heat exchange member of high efficiency while eliminating the need for separate pump and fluid transport means normally employed in heat exchange units of equivalent cooling capacity.
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