US 12,173,970 B2
Heat exchanger core with improved heat exchange efficiency
Shunsaku Eguchi, Tokyo (JP); Nobuhide Hara, Tokyo (JP); Hiroyuki Nakaharai, Tokyo (JP); Yoichi Uefuji, Tokyo (JP); Masaya Hatanaka, Tokyo (JP); Takuo Oda, Tokyo (JP); and Koichi Tanimoto, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/801,402
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Feb. 24, 2021, PCT No. PCT/JP2021/006736
§ 371(c)(1), (2) Date Aug. 22, 2022,
PCT Pub. No. WO2021/172310, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 2020-031240 (JP), filed on Feb. 27, 2020.
Prior Publication US 2023/0087617 A1, Mar. 23, 2023
Int. Cl. F28D 7/00 (2006.01); F28F 7/02 (2006.01)
CPC F28D 7/0008 (2013.01) [F28F 7/02 (2013.01); F28F 2225/04 (2013.01); F28F 2270/02 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A heat exchanger core, comprising
a core formed such that a pair of adjacent passages are folded on top of one another while being adjacent,
wherein at least one passage of the pair of adjacent passages has a pair of adjacent passage portions between which the other passage is not interposed in a direction in which the passages lie on top of one another,
wherein the core has a heat insulation layer between the pair of adjacent passage portions,
wherein overlying portions of the pair of adjacent passages are composed of a combination of portions that are linear when viewed from a direction perpendicular to the pair of adjacent passages,
wherein the heat insulation layer is a void,
wherein the core has a strut portion at least at an end of the void for supporting the void, and
wherein the strut portion is made of the same metal or resin material as the core.