US 11,874,076 B2
Heat exchanger core and heat exchanger
Shunsaku Eguchi, Tokyo (JP); Minemasa Omura, Tokyo (JP); Yoichi Uefuji, Tokyo (JP); Hiroyuki Nakaharai, Tokyo (JP); Koichi Tanimoto, Tokyo (JP); Masaya Hatanaka, Tokyo (JP); Nobuhide Hara, Tokyo (JP); and Takuo Oda, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/801,214
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Feb. 24, 2021, PCT No. PCT/JP2021/006810
§ 371(c)(1), (2) Date Aug. 19, 2022,
PCT Pub. No. WO2021/172340, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 2020-031552 (JP), filed on Feb. 27, 2020.
Prior Publication US 2022/0412674 A1, Dec. 29, 2022
Int. Cl. F28F 9/02 (2006.01)
CPC F28F 9/0268 (2013.01) 13 Claims
OG exemplary drawing
 
1. A heat exchanger core, comprising:
a first header space;
a plurality of first layered header passages stacked in a first direction which is a perpendicular direction to a reference plane such that each first layered header passage extends along the reference plane, wherein each first layered header passage has an open end at a first edge adjacent to the first header space and communicates with the first header space through the open end;
a plurality of first communication port rows arranged in the first direction so as to correspond to the plurality of first layered header passages, respectively, wherein each first communication port row is formed by a plurality of first communication ports arranged along the reference plane;
a plurality of first passages communicating with any of the first layered header passages through the plurality of first communication ports;
a second header space which does not communicate with the first header space;
a plurality of second layered header passages stacked in the first direction such that each second layered header passage extends along the reference plane, wherein each second layered header passage has an open end at a second edge adjacent to the second header space and communicates with the second header space through the open end;
a plurality of second communication port rows arranged in the first direction so as to correspond to the plurality of second layered header passages, respectively, wherein each second communication port row is formed by a plurality of second communication ports arranged along the reference plane; and
a plurality of second passages communicating with any of the second layered header passages through the plurality of second communication ports,
wherein the first passage has a first transition section configured to be displaced from the first communication port to one side along the first direction as the first passage extends in a second direction perpendicular to the first direction,
wherein the second passage has a second transition section configured to be displaced from the second communication port to one side along the first direction as the second passage extends in the second direction,
wherein the first passage has an offset first passage that is displaced from the first communication port to one side of the first direction and a non-offset first passage that is not displaced from the first communication port,
wherein the second passage has an offset second passage that is displaced from the second communication port to one side of the first direction and a non-offset second passage that is not displaced from the second communication port,
wherein the first passage that is composed of only the non-offset first passage and the second passage that is composed of only the non-offset second passage are stacked alternately in the first direction at the same position in a third direction perpendicular to the first and second directions, and
wherein the first passage that has the offset first passage and the second passage that has the offset second passage are stacked alternately in the first direction at the same position in the third direction.