Subfreezing heat exchanger with separate melt fluid

Patent metadata

Field	Value
Publication number	US-2022178621-A1
Application number	US-202017112087-A
Country	US
Kind code	A1
Filing date	Dec 4, 2020
Priority date	Dec 4, 2020
Publication date	Jun 9, 2022
Grant date	—

Abstract

A heat exchanger includes a first side opposite a second side and a third side opposite a fourth side and a cold layer with an inlet at the first side of the heat exchanger, an outlet at the second side of the heat exchanger, and a cold passage extending from the inlet to the outlet. The heat exchanger also includes a hot layer with an inlet manifold at the third side of the heat exchanger extending between the first side and the second side, an outlet manifold at the fourth side of the heat exchanger opposite the inlet manifold and extending between the first side and the second side, a hot passage extending from the inlet manifold to the outlet manifold, and a tube on the first side of the heat exchanger extending from the third side to the fourth side.

First claim

1 . A heat exchanger comprising:
a first side opposite a second side; a third side opposite a fourth side, wherein the third side and the fourth side extend from the first side to the second side; a cold layer comprising:
an inlet at the first side of the heat exchanger;
an outlet at the second side of the heat exchanger; and
a cold passage extending from the inlet to the outlet; and
a hot layer comprising:
an inlet manifold at the third side of the heat exchanger extending between the first side and the second side;
an outlet manifold at the fourth side of the heat exchanger opposite the inlet manifold and extending between the first side and the second side;
a hot passage extending from the inlet manifold to the outlet manifold; and
a tube on the first side of the heat exchanger extending from the third side to the fourth side.

2 . The heat exchanger of claim 1 , wherein the cold layer further comprises:
a first closure bar on the third side extending from the first side to the second side; a second closure bar on the fourth side extending from the first side to the second side; a plurality of fins between the first closure bar and the second closure bar extending from the first side to the second side; and a plurality of cold passages defined by the first closure bar, the second closure bar, and the plurality of fins of the cold layer.

3 . The heat exchanger of claim 2 , wherein the hot layer further comprises:
a third closure bar on the second side of the heat exchanger extending from the third side to the fourth side; a plurality of fins between the tube and the third closure bar extending from the third side to the fourth side; a plurality of passages defined by the tube, the third closure bar, and the plurality of fins of the hot layer.

4 . The heat exchanger of claim 3 further comprising:
a second cold layer; and
a second hot layer,
wherein:
the second cold layer is stacked between the hot layer and the second hot layer;
the second hot layer is stacked between the cold layer and the second cold layer; and
the second hot layer comprises a second tube on the first side of the heat exchanger and extending from the third side to the fourth side.

5 . The heat exchanger of claim 4 , further comprising:
a first fluid supply line configured to contain a first fluid; a second fluid supply line configured to contain a second fluid; and a control valve, wherein the control valve is fluidically connected to the first fluid supply line and the second fluid supply line, and wherein the control valve determines a quantity of the first fluid and a quantity of the second fluid that flows into the tube of the hot layer and the tube of the second hot layer.

6 . The heat exchanger of claim 5 , wherein the tube of the hot layer comprises:
a tube inlet manifold on the third side of the heat exchanger; and a tube outlet manifold on the fourth side of the heat exchanger, wherein the tube of the hot layer fluidically connects the tube inlet manifold and the tube outlet manifold.

7 . The heat exchanger of claim 6 , wherein the tube inlet manifold and the inlet manifold of the hot layer are a unitary, monolithic component, and wherein the tube inlet manifold and the inlet manifold of the hot layer are additively manufactured.

8 . The heat exchanger of claim 6 , wherein the tube outlet manifold and the outlet manifold of the hot layer are one unitary, monolithic component, and wherein the tube outlet manifold and the outlet manifold of the hot layer are additively manufactured.

9 . The heat exchanger of claim 2 , wherein the hot layer further comprises:
a third closure bar on the second side of the heat exchanger extending from the third side to the fourth side; a fourth closure bar on the first side of the heat exchanger extending from the third side to the fourth side, wherein the tube is attached to the fourth closure bar; a plurality of fins between the third closure bar and the fourth closure bar extending from the third side to the fourth side; and a plurality of passages defined by the third closure bar, the fourth closure bar, and the plurality of fins of the hot layer extending from the third side to the fourth side.

10 . The heat exchanger of claim 9 , further comprising:
a first fluid supply line configured to contain a first fluid; a second fluid supply line configured to contain a second fluid; and a control valve, wherein the control valve is fluidically connected to the first fluid supply line and the second fluid supply line, and wherein the control valve determines a quantity of the first fluid and a quantity of the second fluid that flows into the tube of the hot layer.

11 . The heat exchanger of claim 9 , wherein the tube of the hot layer comprises:
a tube inlet manifold on the third side of the heat exchanger; and a tube outlet manifold on the fourth side of the heat exchanger, wherein the tube of the hot layer fluidically connects the tube inlet manifold and the tube outlet manifold.

12 . The heat exchanger of claim 11 , wherein the tube inlet manifold and the inlet manifold of the hot layer are a unitary, monolithic component, and wherein the tube inlet manifold and the inlet manifold of the hot layer are additively manufactured.

13 . The heat exchanger of claim 6 , wherein the tube outlet manifold and the outlet manifold of the hot layer are one unitary, monolithic component, and wherein the tube outlet manifold and the outlet manifold of the hot layer are additively manufactured.

14 . A heat exchanger comprising:
a first side opposite a second side; a third side opposite a fourth side, wherein the third side and the fourth side extend from the first side to the second side; a cold layer comprising:
a first closure bar on the third side extending from the first side to the second side;
a second closure bar on the fourth side extending from the first side to the second side; and
a cold passage between the first closure bar and the second closure bar, wherein the cold passage comprises an inlet on the first side;
a hot layer adjacent the cold layer, the hot layer comprising:
a third closure bar on the second side extending from the third side to the fourth side;
a closure tube on the first side extending from the third side to the fourth side, wherein the closure tube comprises a heating fluid passage extending from the third side to the fourth side; and
a hot passage between the third closure bar and the closure tube, wherein the hot passage comprises an inlet on the third side and an outlet on the fourth side.

15 . The heat exchanger of claim 14 , wherein the heat exchanger further comprises:
an inlet manifold on the third side of the heat exchanger; and an outlet manifold on the fourth side of the heat exchanger, wherein the closure tube fluidically connects the inlet manifold and the outlet manifold.

16 . The heat exchanger of claim 15 , wherein the hot layer further comprises:
an inlet manifold on the third side; and an outlet manifold on the fourth side, wherein the inlet manifold and the outlet manifold extend between the first side and the second side.

17 . The heat exchanger of claim 16 , wherein the inlet manifold of the hot layer and the inlet manifold of the closure tube are one unitary, monolithic component, and wherein the inlet manifold of the hot layer and the inlet manifold of the closure tube are additively manufactured.

18 . The heat exchanger of claim 16 , wherein the outlet manifold of the hot layer and the outlet manifold of

Assignees

• Hamilton Sundstrand Corp

Inventors

• Retersdorf Alan
• Doe Michael

Classifications

• F28D1/05308

  Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators (F28D1/05358 takes precedence) · CPC title

• F28D1/05358

  Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators · CPC title

• F28F9/0234

  having a second heat exchanger disposed there within, e.g. oil cooler · CPC title

• F28D1/0408

  Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids (F28F9/0234 takes precedence) · CPC title

• F28F2009/0287

  having passages for different heat exchange media · CPC title