US 12,130,088 B2
Heat exchanger
Jung Wook Son, Daejeon (KR); and Hyeon Geun Chae, Daejeon (KR)
Assigned to Hanon Systems, Daejeon (KR)
Appl. No. 17/298,254
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Dec. 3, 2019, PCT No. PCT/KR2019/016946
§ 371(c)(1), (2) Date May 28, 2021,
PCT Pub. No. WO2020/116903, PCT Pub. Date Nov. 6, 2020.
Claims priority of application No. 10-2018-0155641 (KR), filed on Dec. 6, 2018.
Prior Publication US 2022/0120507 A1, Apr. 21, 2022
Int. Cl. F28D 9/00 (2006.01); F28F 9/02 (2006.01)
CPC F28D 9/0031 (2013.01) [F28F 9/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A heat exchanger comprising a plurality of flow channel plates laminated on each other to respectively form a cooling water flow channel through which cooling water flows and an air flow channel through which air flows,
wherein a cooling water inlet hole through which the cooling water is introduced and a cooling water outlet hole through which the cooling water is discharged are formed in the flow channel plate while being spaced apart from each other, and beads blocking the cooling water from flowing between the cooling water inlet hole and the cooling water outlet hole protrude from the flow channel plate,
and the beads are arranged to surround each periphery of the cooling water inlet hole and the cooling water outlet hole, and spaced apart from each other for flow resistance of the cooling water to decrease as a flow length of the cooling water increases,
wherein the beads are arranged along the periphery of the cooling water inlet hole or cooling water outlet hole,
wherein the gap between adjacent beads becomes wider as the coolant inlet hole and the coolant discharge hole go outward in the direction away from each other,
wherein the gap between neighboring beads is the shortest distance between beads at a location adjacent to the cooling water inlet hole or the cooling water outlet hole,
wherein the gap between neighboring beads is the distance in the direction in which the beads are adjacent to each other along the circumference of the cooling water inlet hole or the cooling water outlet hole.