公开(公告)号：US20240418448A1

公开(公告)日：2024-12-19

申请号：US18702850

申请日：2022-01-26

Applicant: UACJ Corporation

Inventor： Hikaru EDA ,  Tomoaki TOYAMA ,  Sayo FUKADA

IPC: F28D1/02 ,  F28F1/02 ,  F28F9/02

Abstract: A parallel-flow-type heat exchanger (1) includes a core (11) having flat, multi-hole pipes (2) arrayed in parallel with fins (3) interposed therebetween, the flat, multi-hole pipes and the fins being alternately stacked in an up-down direction. A first header (4) is disposed at one end of the core in a longitudinal direction of the flat, multi-hole pipes and a second header is disposed at the other end of the core in the longitudinal direction. The plurality of flat, multi-hole pipes is divided into at least a first group (21) having a first number of the flat, multi-hole pipes, which group is located most upward of the core, and a second group (22) having a second number of the flat, multi-hole pipes, which group is downward of and adjacent to the first group. The first number is 14 or more, and the second number is less than the first number.