| 摘要 |
PROBLEM TO BE SOLVED: To provide an evaporative cooler which allows the forming of a refrigerant circulation flow in one direction by preventing the reversed flow of a vapor refrigerant. SOLUTION: Link pipes 8 provided on respective plate members 3 are interconnected to form two paths which make the inside of a refrigerant tank 2 communicate with refrigerant paths 10 and one path thereof is provided as vapor path 11 to send a vapor refrigerant evaporated by absorbing heat of a heating element 7 in a refrigerant tank 2 to refrigerant paths 10 while the other path is provided as liquid return path 12 to return a condensed liquid liquefied in the refrigerant paths 10 into the refrigerant tank 2. A refrigerant holding member 6 is arranged inside the two link pipes 8 the nearest the refrigerant tank 2 among the link pipes 8 forming the liquid return path 12 and held closely on the internal surfaces of the link pipes 8 (press fitted). The refrigerant holding member 6 is a porous member (e.g. sintered metal, foaming metal or forming resin) molded into a specified shape and has numerous clearances less than a Laplace length enough to hold the condensed liquid.
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