Importance

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Abstract

A heat exchanger includes a mounting section on which heat-exchanged object is mounted, and a circulation section in which a plurality of flow paths through which a heating medium flows are formed, wherein the plurality of flow paths include first flow paths in which a flow path width in a third direction vary according to advance in a first direction at a side closer to a first end portion and at a side closer to a second end portion of the first flow path in a second direction, the flow path width of the first flow path at the side closer to the first end portion varies with a decrease tendency according to advance in the first direction, and the flow path width of the first flow path at the side closer to the second end portion varies with an increase tendency according to advance in the first direction.

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First Claim