Heat exchanger

Patent metadata

Field	Value
Publication number	US-12449203-B2
Application number	US-202117152789-A
Country	US
Kind code	B2
Filing date	Jan 19, 2021
Priority date	Sep 3, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A heat exchanger includes a first fluid carrying conduit extending along a first conduit axis and configured to convey a first fluid at a first temperature, and a second fluid carrying conduit extending along a second conduit axis and configured to convey a second fluid at a cooler, second temperature. The heat exchanger also includes at least one fin having a first opening for coupling to the first fluid carrying conduit and a second opening for coupling to the second fluid carrying conduit. The at least one fin extends along a fin axis that subtends an acute angle or obtuse angle with at least one of the first conduit axis or the second conduit axis.

First claim

What is claimed is:

1. A heat exchanger comprising:
a first fluid carrying conduit of a gas turbine extending along a first conduit axis and configured to convey a first fluid at a first temperature;
a second fluid carrying conduit of the gas turbine extending along a second conduit axis and configured to convey a second fluid at a cooler, second temperature;
a first fin having a first opening for coupling to the first fluid carrying conduit and a second opening for coupling to the second fluid carrying conduit, the first fin extending along a first fin axis that subtends an acute angle or obtuse angle with at least one of the first conduit axis or the second conduit axis to transfer heat from the first fluid carrying conduit to the second fluid carrying conduit that exits the heat exchanger; and
a second fin having a first opening for coupling to the first fluid carrying conduit and a second opening for coupling to the second fluid carrying conduit, the second fin extending along a second fin axis that subtends an acute angle or obtuse angle with at least one of the first conduit axis or the second conduit axis and positioned adjacent to and aligned with the first fin along the first conduit axis and the second conduit axis to transfer heat from the first fluid carrying conduit to the second fluid carrying conduit that exits the heat exchanger.

2. The heat exchanger of claim 1 , wherein the first fluid carrying conduit has at least one of a circular cross-section, a rectangular cross-section, or a triangular cross-section.

3. The heat exchanger of claim 1 , wherein the first conduit axis is parallel to the second conduit axis.

4. The heat exchanger of claim 1 , wherein the first fin is positioned in parallel to the second fin.

5. The heat exchanger of claim 1 , wherein the acute angle formed between the first fin axis and the at least one of the first conduit axis or the second conduit axis is in a range between 15° and 75° or the obtuse angle formed between the first fin axis and the at least one of the first conduit axis or the second conduit axis is in a range between 105° and 175°.

6. The heat exchanger of claim 1 , wherein the first fluid carrying conduit is configured to convey at least one of water, oil, air, or refrigerant as the first fluid.

7. The heat exchanger of claim 1 , wherein the first fin axis forms a first acute angle with the first conduit axis and forms a second acute angle with the second conduit axis, or the first fin axis forms a first obtuse angle with the first conduit axis and forms a second obtuse angle with the second conduit axis.

8. The heat exchanger of claim 7 , wherein the first acute angle and the second acute angle are equivalent, or the first obtuse angle and the second obtuse angle are equivalent.

9. The heat exchanger of claim 1 , wherein a metal material surrounds the first opening or the second opening to transfer thermal energy between (a) the first fluid carrying conduit or the second fluid carrying conduit and (b) the first fin.

10. The heat exchanger of claim 1 , wherein first fin includes plural slots disposed therein.

11. A heat exchanger comprising:
a fluid carrying conduit of a gas turbine extending along an axis; and
a first fin having a first opening for receiving the fluid carrying conduit, the first fin having a front surface and a back surface, the front surface and the back surface each intersecting the axis to form a first acute or a first obtuse angle with the axis;
wherein the fluid carrying conduit is a first fluid carrying conduit, and the axis is a first axis, the heat exchanger further comprising: a second fluid carrying conduit having a second axis and that exits the heat exchanger, wherein the front surface and the back surface of the first fin each intersect the second axis to form a second acute or a second obtuse angle with the second axis.

12. The heat exchanger of claim 11 , further comprising a second fin positioned in parallel to the first fin.

13. The heat exchanger of claim 11 , wherein the first acute or the first obtuse angle is an acute angle that is in a range between 15° and 75° or an obtuse angle that is in a range between 105° and 175°.

14. A heat exchanger comprising:
a first fluid carrying conduit of a gas turbine extending along a first axis and configured to convey a first fluid at a first temperature;
a second fluid carrying conduit of the gas turbine extending along a second conduit axis and configured to convey a second fluid at a cooler, second temperature;
a first fin having a first opening for receiving the first fluid carrying conduit and a second opening for receiving the second fluid carrying conduit, the first fin extending between the first fluid carrying conduit and the second fluid carrying conduit; and
a second fin having a first opening for receiving the first fluid carrying conduit and a second opening for receiving the second fluid carrying conduit, the second fin spaced from the first fin and extending between the first fluid carrying conduit and the second fluid carrying conduit;
wherein the first fluid carrying conduit, the second fluid carrying conduit, the first fin, and the second fin form a rhomboid.

15. The heat exchanger of claim 14 , wherein the first fluid carrying conduit has at least one of a circular cross-section, a rectangular cross-section, or a triangular cross-section.

16. The heat exchanger of claim 14 , wherein the first fluid carrying conduit forms an angle in a range between, 15° and 75° or between 105° and 175° with the first fin.

17. The heat exchanger of claim 16 , wherein the first fluid carrying conduit forms an angle in a range between, 15° and 75° or between 105° and 175° with the second fin.

18. The heat exchanger of claim 14 , wherein copper provides a seal between the first fluid carrying conduit and the first fin.

Assignees

• Transp Ip Holdings Llc

Inventors

• Ravindranath Balaji Hosadurgam

Classifications

• F28F1/20

  the means being attachable to the element (F28F1/22 takes precedence) · CPC title

• F28F2215/08

  with openings, e.g. louvers · CPC title

• F24F13/30

  Arrangement or mounting of heat-exchangers · CPC title

• F24F1/0059

  characterised by heat exchangers · CPC title

• F28F2215/02

  Arrangements of fins common to different heat exchange sections, the fins being in contact with different heat exchange media · CPC title