Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tomohiro Shimazu0
Yasuhiro Mizuno0
Yuki Suzuki0
Date of Patent
October 29, 2019
Patent Application Number
15516915
Date Filed
August 18, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A heat exchanger has a tube and an inner fin. A heat medium exchanging heat with a heat exchange target flows in the tube, and the tube has a flat shape in cross section perpendicular to a flow direction of the heat medium. The inner fin has first fins and second fins. The second fins are formed parallel to the flow direction in at least one of an upstream end portion located on an upstream side of an area, in which the first fins are formed, in the flow direction or a downstream end portion located on a downstream side of the area in the flow direction. Fin pitches between the first fins are all identical with each other. At least one of fin pitches between the second fins is different from other fin pitches between the second fins.
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