HEAT EXCHANGER
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United States of America Patent
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N/A
Issued Date -
Jun 25, 2015
app pub date -
May 8, 2013
filing date -
Sep 19, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A heat exchanger includes a communication flow path 31 which communicates a first lower tank provided in a plurality of laminated flat tubes with a second lower tank provided adjacent to the first lower tank, the communication flow path 31 includes a throttle portion 34 formed in the center in a width direction, the throttle portion 34 has a curved surface formed in a protruded shape inside the communication flow path 31 with a predetermined radius of curvature R, when the length, in which an outer dimension in a height direction is the maximum, of the communication flow path 31 is set to be H, and the length, in which an outer dimension in the width direction is the maximum, of the communication flow path 31 is set to be W, the radius of curvature R of the throttle portion 34 is R≧0.2 H.
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