公开(公告)号：US11897022B2

公开(公告)日：2024-02-13

申请号：US16513923

申请日：2019-07-17

Applicant: DENSO CORPORATION

Inventor： Kenichi Kachi ,  Hisashi Kobayashi ,  Sachi Onaga ,  Kazuhiro Mitsukawa ,  Yoshinori Sakimoto ,  Taichi Asano ,  Kazutaka Suzuki

IPC: B21D53/02 ,  B21D13/04 ,  F28F1/12

CPC classification number: B21D53/022 ,  B21D13/04 ,  F28F1/126

Abstract: A fin according to the present disclosure is a corrugated fin formed of a metal plate by bending into a corrugated shape, and the corrugated fin includes peak portions extending in a first direction, valley portions extending in the first direction, and inclined portions connecting the peak portions and the valley portions adjacent to each other. The peak portions and the valley portions are alternately arranged in a second direction perpendicular to the first direction, and a thickness of the metal plate at each apex of the peak portions and the valley portions is larger than a thickness of the inclined portions of the metal plate.

公开(公告)号：US11466936B2

公开(公告)日：2022-10-11

申请号：US17140889

申请日：2021-01-04

Applicant: DENSO CORPORATION

Inventor： Shinya Kitagawa ,  Takahiro Uno ,  Kenichi Kachi

IPC: F28D1/053 ,  F28F1/30

Abstract: A heat exchanger includes multiple tubes and multiple fins. Each of the tubes has a tubular shape extending in a horizontal direction. Each of the fins is disposed between adjacent ones of the tubes in a vertical direction vertical to the horizontal direction. Each of the fins is corrugated and includes bent portions located near the adjacent ones of the tubes and flat plate portions each of which extends in the vertical direction to connect between two of the bent portions. Each of the fins includes a pair of slits and an offset portion. At least a portion of the pair of slits extends to one of the bent portions. The offset portion is formed by having a portion of each of the fins between the pair of slits recessed inward of the one of the bent portions.