US 12,123,665 B2
Heat exchanger
Yosuke Taniguchi, Tokyo (JP); and Ryosuke Maeda, Tokyo (JP)
Assigned to T.RAD CO., LTD., Tokyo (JP)
Appl. No. 17/613,488
Filed by T.RAD CO., LTD., Tokyo (JP)
PCT Filed Jun. 26, 2020, PCT No. PCT/IB2020/020032
§ 371(c)(1), (2) Date May 5, 2022,
PCT Pub. No. WO2020/250041, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 2019-107977 (JP), filed on Jun. 10, 2019.
Prior Publication US 2022/0268533 A1, Aug. 25, 2022
Int. Cl. F28F 9/02 (2006.01); F28D 21/00 (2006.01)
CPC F28F 9/0246 (2013.01) [F28D 2021/0091 (2013.01); F28F 2275/04 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A heat exchanger, comprising:
a header plate, in which major axis directions of a plurality of flat holes are disposed along a shorter side direction of the header plate, respective flat holes are arranged in parallel separately at regular intervals in a longer side direction of the header plate, an opening end portion of a flat tube is inserted into the respective flat holes while positioning a longer side direction thereof in a shorter side direction of the header plate, and the insertion portion is brazed; and
a tank main body with which a peripheral border of the header plate is connected, and the tank main body supplying a high temperature fluid into the respective flat tubes, wherein:
an end portion cover body that covers at least one end portion in a longer side direction of the opening end portion of the flat tube is constituted integrally with the tank main body and lies only at one end portion or both end portions in a longer side direction of the header plate, in which direction the flat tubes are stacked in the header plate, the end portion cover body being configured so as to constrict the opening of each of the opening end portions which it covers so as to decrease flow of fluid through each of the tubes the opening end portion of which is covered by the end portion cover body.