公开(公告)号：US20210063091A1

公开(公告)日：2021-03-04

申请号：US16928372

申请日：2020-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Sukyoung LEE ,  Sanghoon YOO ,  Hanchoon LEE ,  Jiwon CHOI

IPC: F28D9/00 ,  F28F3/08

Abstract: In a plate type heat exchanger, a radius of curvature R1 of the protrusions formed in first plates is greater than a radius of curvature R2 of the depressions formed in the first plates to provide a plurality of asymmetrical flow paths.

公开(公告)号：US20220349658A1

公开(公告)日：2022-11-03

申请号：US17621450

申请日：2020-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon CHOI ,  Sukyoung LEE ,  Hanchoon LEE

IPC: F28D7/16 ,  F28D7/12

Abstract: A heat exchanger according to an embodiment of the present disclosure includes a housing, a gas inflow pipe configured to flow exhaust gas in the housing and a gas exhaust pipe configured to discharge the exhaust gas to the outside of the housing, a cooling water inflow pipe configured to flow cooling water in the housing and a cooling water outflow pipe configured to flow out the cooling water heat-exchanged with the exhaust gas to the outside of the housing, a plurality of tubes extending in the housing in the longitudinal direction of the housing and through which the cooling water flowing therein through the cooling water inflow pipe flows, and a plurality of baffles which are installed in the housing to insert the plurality of tubes thereinto and which are spaced apart from each other by a predetermined distance and are disposed, in which the baffle may be a first curved part configured to extend to be rounded with a first curvature, a first straight part configured to extend linearly from one end part of the first curved part, a second straight part configured to extend linearly from the other end part of the first curved part, and a second curved part positioned between the first and second straight parts and configured to extend to be rounded with a second curvature, and the first straight part and the second straight part may be formed in a direction crossing each other.

公开(公告)号：US20240247881A1

公开(公告)日：2024-07-25

申请号：US18414060

申请日：2024-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Jaeyoung KIM ,  Sukyoung LEE ,  Sangyeul LEE ,  Eungyul LEE

IPC: F28F1/32 ,  F24F1/0059 ,  F28F1/12

CPC classification number: F28F1/325 ,  F24F1/0059 ,  F28F1/126

Abstract: A heat exchanger includes: a heat transfer pipe to guide a refrigerant; and a plurality of fins spaced apart from each other to allow air to pass in a first direction, the plurality of fins each having a through-hole through which the heat transfer pipe is installed, each of the plurality of fins includes a corrugated portion formed in a zigzag shape proceeding in the first direction and a sheet portion recessed from the corrugated portion around the through-hole to be parallel with the first direction, and an area of the sheet portion corresponds to 16% or more of an area of one unit among a plurality of units of the fin.