Heat exchanger
AssigneeShowa Denko K.K.
InventorsHideo Ohhashi, Kouta Arino
Life of this patent
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Abstract
A heat exchanger employed as an evaporator includes a heat exchange core section and first to fourth headers 5, 6, 9, 11. The headers 5, 6 include hollow header bodies 10, 20 having opposite ends opened, and caps 18a, 18b, 19a, 19b fixed to the corresponding opposite end openings. The caps 18a, 18b have flat wall portions 32a, 33a, 34a which close the corresponding end openings of the header bodies 10, 20. A reinforcement projection portion 30 projecting toward the interior of the header 5 is formed on the flat wall portion 32a of the cap 18a. In the heat exchanger, the header 5 exhibits enhanced withstand pressure.
Claims16
A heat exchanger comprising two headers spaced apart from each other and a plurality of heat exchange tubes which are disposed between the two headers at predetermined intervals along a longitudinal direction of the headers and whose opposite end portions are connected to the corresponding headers,
- wherein the two headers each comprise a hollow header body having opposite ends opened, and caps each having a flat wall portion and fixed to the corresponding opposite ends of the header body, the flat wall portions closing the corresponding opposite end openings of the header body;
- and a reinforcement projection portion projecting toward the interior of the header is formed on the flat wall portion of at least one of the caps.
A heat exchanger comprising a heat exchange core section configured such that heat exchange tube groups are arranged in a plurality of rows in an air flow direction, each heat exchange tube group consisting of a plurality of heat exchange tubes arranged at predetermined intervals, a first header which is disposed on a first-end side of the heat exchange tubes and to which the heat exchange tubes of at least one heat exchange tube group are connected, a second header which is disposed on the first-end side of the heat exchange tubes and upstream of the first header with respect to the air flow direction and to which the heat exchange tubes of the remaining heat exchange tube groups are connected, a third header which is disposed on a second-end side of the heat exchange tubes and to which the heat exchange tubes connected to the first header are connected, and a fourth header which is disposed on the second-end side of the heat exchange tubes and to which the heat exchange tubes connected to the second header are connected,
- wherein the headers each comprise a hollow header body having opposite ends opened, and caps each having a flat wall portion and fixed to the corresponding opposite ends of the header body, the flat wall portions closing the corresponding opposite end openings of the header body;
- and a reinforcement projection portion projecting toward the interior of the header is formed on the flat wall portion of at least one of the caps.
Dependencies are inferred from the claim text.