Heat exchanger core and heat exchanger

Patent metadata

Field	Value
Publication number	US-11874076-B2
Application number	US-202117801214-A
Country	US
Kind code	B2
Filing date	Feb 24, 2021
Priority date	Feb 27, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A heat exchanger core according to an embodiment includes: a first header space; a plurality of first layered header passages; a plurality of first communication port rows; and a plurality of first passages. The plurality of first layered header passages are stacked in a perpendicular direction to a reference plane so as to each extend along the reference plane. 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. The plurality of first communication port rows are arranged in the perpendicular direction so as to correspond to the plurality of first layered header passages, respectively. Each first communication port row is formed by a plurality of first communication ports arranged along the reference plane. The plurality of first passages communicate with any of the first layered header passages through the plurality of first communication ports.

First claim

The invention claimed is:

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.

2. The heat exchanger core according to claim 1 ,
wherein the plurality of first layered header passages and the plurality of second layered header passages are alternately stacked in the perpendicular direction, and
wherein the plurality of first communication port rows and the plurality of second communication port rows are alternately arranged in the perpendicular direction.

3. The heat exchanger core according to claim 2 ,
wherein the plurality of first layered header passages and the plurality of second layered header passages are disposed so as to overlap each other in plan view as viewed from the perpendicular direction, and
wherein the first header space is disposed outside an arrangement region of the second header space in the plan view.

4. The heat exchanger core according to claim 1 ,
wherein the first header space has a polyhedral shape including the first edge as one face, and
wherein the second header space has a polyhedral shape including the second edge as one face.

5. The heat exchanger core according to claim 1 ,
wherein the plurality of first layered header passages is disposed in an arrangement area of the plurality of first passages when viewed along an extension direction of the plurality of first passages, and
wherein the plurality of second layered header passages is disposed in an arrangement area of the plurality of second passages when viewed along an extension direction of the plurality of second passages.

6. The heat exchanger core according to claim 1 ,
wherein the first header space overlaps at least a portion of an arrangement area of the plurality of first passages when viewed along an extension direction of the plurality of first passages, and
wherein the second header space overlaps at least a portion of an arrangement area of the plurality of second passages when viewed along an extension direction of the plurality of second passages.

7. The heat exchanger core according to claim 1 ,
wherein the first header space overlaps at least a portion of a range occupied by the plurality of first layered header passages when viewed along an extension direction of the plurality of first passages, and
wherein the second header space overlaps at least a portion of a range occupied by the plurality of second layered header passages when viewed along an extension direction of the plurality of second passages.

8. The heat exchanger core according to claim 1 ,
wherein at least part of the plurality of first passages overlaps along the perpendicular direction the second passage that is disposed on at least one of one side or another side along an arrangement direction of the plurality of first communication ports in each first communication port row.

9. The heat exchanger core according to claim 8 ,
wherein at least part of the plurality of first passages is substantially in the same arrangement position along the perpendicular direction as the second passage that is disposed on at least one of the one side or the another side.

10. The heat exchanger core according to claim 9 ,
wherein at least part of the plurality of first passages is sandwiched between two second passages disposed on the one side and the another side and is sandwiched between two second passages disposed on one side and another side of the first passage in the perpendicular direction.

11. The heat exchanger core according to claim 8 ,
wherein, in each first communication port row, the first passage that is disposed at substantially the same position as the first communication port and the first passage that is disposed at a position displaced in the perpendicular direction from the first communication port are alternately arranged one after another when viewed along an extension direction of the first passages, and
wherein, in each second communication port row, the second passage that is disposed at substantially the same position as the second communication port and the second passage that is disposed at a position displaced in the perpendicular direction from the second communication port are alternately arranged one after another when viewed along an extension direction of the second passages.

12. The heat exchanger core according to claim 11 ,
wherein, among the plurality of first passages, the first passage that is connected to the first communication port and disposed at a position displaced in the perpendicular direction from the first communication port has a first transition section formed such tha

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Eguchi Shunsaku
• Omura Minemasa
• Uefuji Yoichi
• Nakaharai Hiroyuki
• Tanimoto Koichi
• Hatanaka Masaya
• Hara Nobuhide
• Oda Takuo

Classifications

• F28F9/0268 Primary

  in the form of multiple deflectors for channeling the heat exchange medium · CPC title

• B33Y80/00 Primary

  Products made by additive manufacturing · CPC title

• F28D9/0031

  the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence) · CPC title

• F28F7/02

  Blocks traversed by passages for heat-exchange media {(F28D7/0008 takes precedence)} · CPC title