Multi-scale heat exchanger core

Patent metadata

Field	Value
Publication number	US-11555659-B2
Application number	US-202017127034-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Dec 18, 2020
Publication date	Jan 17, 2023
Grant date	Jan 17, 2023

Abstract

A heat exchanger core includes a first side, a second side, a third side, and a fourth side. A first layer includes a first width extending in a first direction, a first length extending in a second direction, a first height extending in a third direction, and a first plurality of passages, which extend from an inlet to an outlet. A second layer includes a second width extending in the first direction, a second length extending in the second direction, a second height extending in the third direction, and a second plurality of passages extending from the first side to the second side. The first and second plurality of passages are adjacent to one another. The first and second plurality of passages include a sinusoidal profile in the third direction and a sinusoidal profile in the first direction.

First claim

The invention claimed is:

1. A heat exchanger core comprising:
a first side;
a second side, opposite the first side;
a third side;
a fourth side, opposite third side, wherein the third and fourth side extend from the first side to the second side;
a first layer comprising:
a first width extending in a first direction, a first length extending in a second direction, and a first height extending in a third direction; and
a first plurality of passages, wherein each passage of the first plurality of passages comprises an inlet on the first side and an outlet on the second side, wherein each passage of the plurality of passages extends from the inlet to the outlet, and wherein each passage of the first plurality of passages comprises a hexagonal profile;

a second layer comprising:
a second width extending in the first direction, a second length extending in the second direction, and a second height extending in the third direction; and
a second plurality of passages extending from the first side to the second side, wherein each passage of the second plurality of passages comprises a hexagonal profile;
wherein:
the first and second plurality of passages are adjacent to one another;
the first and second plurality of passages comprise a sinusoidal profile in the third direction; and
the first and second plurality of passages comprise a sinusoidal profile in the first direction;
wherein at least one of the passages of the first plurality of passages and at least one of the passages of the second plurality of passages each have a plurality of columns located therein, the columns spaced apart from one another and extending along the length of their respective passages, and the columns extending across their respective passages.

2. The heat exchanger core of claim 1 , wherein the sinusoidal profile in the third direction comprises a first amplitude.

3. The heat exchanger core of claim 2 , wherein the sinusoidal profile in the first direction comprises a second amplitude.

4. The heat exchanger core of claim 3 , wherein the first amplitude comprises a magnitude that is different from a magnitude of the second amplitude.

5. The heat exchanger core of claim 1 , wherein at least one column of the plurality of columns comprises a bend in the at least one column between a first portion of the at least one column and a second portion of the at least one column, wherein the first portion extends from a wall of the first or second plurality of passages at a first angle, and wherein the second portion extends from the wall of the first or second plurality of passages at a second angle.

6. The heat exchanger core of claim 5 , wherein the first angle is between 5 degrees and 55 degrees, and wherein the second angle is between 5 degrees and 55 degrees.

7. The heat exchanger core of claim 1 , wherein at least one column of the plurality of columns is a fin, wherein the fin extends from a leading edge to a trailing edge in the second direction.

8. The heat exchanger core of claim 1 , wherein the heat exchanger core further comprises a form factor comprising a sinusoidal profile.

9. The heat exchanger core of claim 8 , wherein the sinusoidal profile comprises an amplitude in the third direction.

10. The heat exchanger core of claim 1 , wherein the heat exchanger core further comprises a form factor comprising a logistic sigmoid curve.

11. A heat exchanger core comprising:
a first side;
a second side opposite the first side;
a third side;
a fourth side opposite the third side, wherein the third and fourth sides each extend from the first side to the second side;
a first layer comprising:
a first width extending in a first direction, a first length extending in a second direction, and a first height extending in a third direction;
a first plurality of passages, wherein each passage of the first plurality of passages comprises an inlet on the first side and an outlet on the second side, wherein each passage of the first plurality of passages extends from the inlet to the outlet, and wherein each passage of the first plurality of passages comprises a hexagonal cross-sectional profile;

a second layer comprising:
a second width extending in the first direction, a second length extending in the second direction, and a second height extending in the third direction;
a second plurality of passages extending from the first side to the second side, wherein each passage of the second plurality of passages comprises a hexagonal cross-sectional profile;
wherein:
the first and second plurality of passages are adjacent to one another;
the first and second plurality of passages each comprise a first profile in the third direction defined by:

y
1

=

y

0
1

+

A
y

⁢

sin
(

2
⁢
π
⁢

z
1

d

z
,
y

)

;

where y 1 is the first profile in the third direction, y 0 1 is a first origination point, A y is a first amplitude, z 1 is a position in the second direction, and d z,y is a first wavelength; and

the first and second plurality of passages each comprise a second profile in the first direction defined by:

x
1

=

x
0

+

A
x

⁢

sin
⁡
(

2
⁢
π
⁢

z
1

d

z
,
x

)

where x 1 is the second profile in the first direction, x 0 is a second origination point, A x is a second amplitude, z 1 is a position in the second direction, and d z,x is a second wavelength;

Assignees

• Hamilton Sundstrand Corp

Inventors

• Lynch Matthew E
• Butcher Evan J
• Binek Lawrence A

Classifications

• F28D2021/0026

  for combustion engines, e.g. for gas turbines or for Stirling engines · CPC title

• F28F1/022 Primary

  with multiple channels · CPC title

• F28F7/02

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

• F28D7/08

  the conduits being otherwise bent, e.g. in a serpentine or zig-zag (F28D7/10 takes precedence){(F28D7/0016 and F28D7/0033 take precedence)} · CPC title

• F28D2021/0021

  for aircrafts or cosmonautics · CPC title