Heat exchanger systems and devices for reduced pressure loss

Patent metadata

Field	Value
Publication number	US-12405071-B2
Application number	US-202318153936-A
Country	US
Kind code	B2
Filing date	Jan 12, 2023
Priority date	Jan 12, 2023
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

A heat exchanger can comprise: a housing; a heat transfer region disposed within the housing; and an inlet manifold or an inlet conduit defined at least partially by an interior surface extending axially from a first end of the heat exchanger to an inlet defined by the heat transfer region, the inlet manifold or the inlet conduit comprising a dimple configuration disposed in the interior surface. The heat exchanger can further comprise an outlet manifold or an outlet conduit including a dimple configuration disposed on an interior surface of the outlet manifold or outlet conduit.

First claim

What is claimed is:

1. A heat exchanger, comprising:
a housing;
a heat transfer region disposed within the housing; and
an inlet manifold defined at least partially by an interior surface recessed from a first edge to a second edge, the second edge extending axially from a first end of the heat exchanger to an inlet defined by the heat transfer region and disposed transversely with respect to the inlet manifold, the inlet manifold comprising a dimple configuration disposed in the interior surface.

2. The heat exchanger of claim 1 , wherein the dimple configuration comprises a plurality of dimples spaced apart axially along the interior surface.

3. The heat exchanger of claim 2 , wherein the dimple configuration comprises rows of the plurality of dimples spaced apart laterally along the interior surface.

4. The heat exchanger of claim 2 , wherein each dimple in the plurality of dimples comprises a first diameter in a X-direction, a second diameter in a Y-direction, and a depth of dimple, the depth of dimple measured from the interior surface to a max depth of the dimple.

5. The heat exchanger of claim 4 , wherein the first diameter in the X-direction and the second diameter in the Y-direction are each between 0.007 inches (0.18 cm) and 2.9 inches (7.4 cm), and the depth of dimple is between 0.001 inches (0.0025 cm) and 1.5 inches (3.81 cm).

6. The heat exchanger of claim 1 , further comprising:
an outlet manifold recessed axially from a second end of the heat exchanger opposing the first end and in fluid communication with the inlet manifold through the heat transfer region, the outlet manifold comprising the dimple configuration; and
an inlet fluid conduit and an outlet fluid conduit, the inlet fluid conduit in fluid communication with the outlet fluid conduit through the heat transfer region.

7. The heat exchanger of claim 6 , wherein the inlet fluid conduit and the outlet fluid conduit each comprise the heat transfer region and extend transversely with respect to the inlet manifold and the outlet manifold.

8. A heat exchanger, comprising:
a housing;
a heat transfer region disposed within the housing;
an inlet fluid conduit extending from a first end to an inlet of the housing, the inlet defined by the heat transfer region, the inlet fluid conduit defining an interior surface and comprising a dimple configuration disposed in the interior surface; and
an inlet manifold and an outlet manifold, the inlet manifold in fluid communication with the outlet manifold through the heat transfer region.

9. The heat exchanger of claim 8 , wherein the interior surface is a cylindrical surface.

10. The heat exchanger of claim 9 , wherein the dimple configuration comprises a plurality of dimples spaced apart axially along the interior surface.

11. The heat exchanger of claim 10 , wherein the dimple configuration comprises rows of the plurality of dimples spaced apart circumferentially along the cylindrical surface.

12. The heat exchanger of claim 10 , wherein each dimple in the plurality of dimples comprises a first diameter in a X-direction, a second diameter in a Y-direction, and a depth of dimple, the depth of dimple measured from the interior surface to a max depth of the dimple.

13. The heat exchanger of claim 4 , wherein the first diameter in the X-direction and the second diameter in the Y-direction are each between 0.007 inches (0.18 cm) and 2.9 inches (7.4 cm), and the depth of dimple is between 0.001 inches (0.0025 cm) and 1.5 inches (3.81 cm).

14. The heat exchanger of claim 8 , further comprising an outlet fluid conduit in fluid communication with the inlet fluid conduit through a fluid conduit in the heat transfer region, the outlet fluid conduit comprising the dimple configuration, wherein the fluid conduit in the heat transfer region is without dimples.

15. A gas turbine engine comprising the heat exchanger of claim 1 , the gas turbine engine further comprising:
a supply conduit; and
a return conduit in fluid communication with the supply conduit through the heat transfer region of the heat exchanger.

16. A gas turbine engine comprising the heat exchanger of claim 8 , the gas turbine engine further comprising:
a supply conduit; and
a return conduit in fluid communication with the supply conduit through the heat transfer region of the heat exchanger.

Assignees

• Raytheon Tech Corp
• Rtx Corp

Inventors

• Avidane Orin G
• Cue Javier A
• Hunter Ryan William

Classifications

• Y02T50/60

  Efficient propulsion technologies, e.g. for aircraft · CPC title

• F28D9/0056

  with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates · CPC title

• F28D9/005

  the plates having openings therein for both heat-exchange media · CPC title

• F02K3/115

  by means of indirect heat exchange · CPC title

• F05D2260/213

  by the provision of a heat exchanger within the cooling circuit · CPC title