Evaporator
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United States of America Patent
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N/A
Issued Date -
Apr 8, 2010
app pub date -
Oct 6, 2009
filing date -
Oct 7, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Each heat exchange tube of an evaporator is composed of two press-worked rectangular metal plates joined together in a stacked condition. The metal plates of the heat exchange tube are swelled outward whereby at least one refrigerant flow space extending in the vertical direction and having opened upper and lower ends is provided in the heat exchange tube. Insertion portions to be inserted into header sections of header tanks of the evaporator via tube insertion holes are provided on upper and lower end portions of each heat exchange tube at positions corresponding to the refrigerant flow space. A concave portion is formed in each of the insertion portions, excluding opposite ends thereof with respect to the front-rear direction, of the upper and lower end portions of each heat exchange tube, the concave portion being concaved inward with respect to a longitudinal direction of the heat exchange tube.
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