IP Library Granted Patent US 12669069
Granted Patent B2
US 12669069 · App. 18/387,564 · Granted Jun 30, 2026

Bearing chamber with mapped thermal heat exchange fins

Inventors: Lawrence A. Binek (Glastonbury, CT); Christopher D. Ramsey (Glastonbury, CT); Gen Satoh (Cheshire, CT); Benjamin G. Gardell (Bristol, CT)
Assignee: RTX CORPORATION
F01D25/125B33Y50/00B33Y80/00F01D25/162F16C37/00F05D2230/31F05D2260/22141F16C2360/23
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Quick Facts
Patent No.
US 12669069
App. No.
18/387,564
Granted
Jun 30, 2026
Kind
B2
Abstract

A method of additively manufacturing a component is provided. The method includes generating a three-dimensional (3D) model of the component, generating a first heat map of the 3D model which is illustrative of first thermal effects the component is expected to experience during additive manufacturing, generating a second heat map of the 3D model which is illustrative of second thermal effects the component is expected to experience during operational use, updating the 3D model to include 3D heat exchange fin models for reducing each of the first and second thermal effects and updating the 3D model with the 3D heat exchange fin models to include 3D weight reduction cavity models for weight-neutralizing the 3D heat exchange fin models.

Claims (51)

1 . A method of additively manufacturing a component, the method comprising:

generating a three-dimensional (3D) model of the component;

generating a first heat map of the 3D model which is illustrative of first thermal effects the component is expected to experience during additive manufacturing;

generating a second heat map of the 3D model which is illustrative of second thermal effects the component is expected to experience during operational use;

updating the 3D model to include 3D heat exchange fin models for reducing each of the first and second thermal effects;

updating the 3D model with the 3D heat exchange fin models to include 3D weight reduction cavity models for weight-neutralizing the 3D heat exchange fin models; and

additively manufacturing the component according to the 3D model, the 3D heat exchange fin models and the 3D weight reduction cavity models such that the component comprises:

a body comprising a portion of the body defining weight reduction cavities;

a surface extending off the body; and

heat exchange fins integrally formed with the surface to be disposed at a distance from and to face inwardly toward the portion of the body.

2 . The method according to claim 1 , wherein the component comprises a bearing chamber.

3 . The method according to claim 1 , further comprising:

determining whether the 3D heat exchange fin models are effective at reducing the first and second thermal effects;

refining the 3D heat exchange fin models based on a result of the determining; and

repeating the determining and the refining until the determining indicates that the 3D heat exchange fin models are effective at reducing the first and second thermal effects.

4 . The method according to claim 1 , further comprising:

determining whether the 3D weight reduction cavity models are associated with an increased stress;

refining the 3D weight reduction cavity models based on a result of the determining; and

repeating the determining and the refining until the determining indicates that the 3D weight reduction cavity models are not associated with the increased stress.

5 . The method according to claim 1 , wherein the 3D heat exchange fin models are representative of the heat exchange fins integrally built on the surface.

6 . The method according to claim 1 , wherein the 3D heat exchange fin models are representative of the heat exchange fins provided as an array of surface features integrally built on the surface.

7 . The method according to claim 1 , wherein the 3D heat exchange fin models are representative of the heat exchange fins provided as an array of surface features integrally built on the surface and configured to channel oil thereon.

8 . A method of additively manufacturing a bearing chamber, the method comprising:

generating a three-dimensional (3D) model of the bearing chamber;

generating a heat map of the 3D model which is illustrative of first thermal effects the bearing chamber is expected to experience during additive manufacturing;

generating a heat map of the 3D model which is illustrative of second thermal effects the bearing chamber is expected to experience during operational use;

updating the 3D model to include 3D heat exchange fin models for reducing the first and second thermal effects;

updating the 3D model with the 3D heat exchange fin models to include 3D weight reduction cavity models for weight-neutralizing the 3D heat exchange fin models; and

additively manufacturing the bearing chamber according to the 3D model, the 3D heat exchange fin models and the 3D weight reduction cavity models such that the bearing chamber comprises:

a bearing chamber body comprising a portion of the bearing chamber body defining weight reduction cavities;

a surface extending off the bearing chamber body; and

heat exchange fins integrally formed with the surface to be disposed at a distance from and to face inwardly toward the portion of the bearing chamber body.

9 . The method according to claim 8 , further comprising:

determining whether the 3D heat exchange fin models are effective at reducing the first and second thermal effects;

refining the 3D heat exchange fin models based on a result of the determining; and

repeating the determining and the refining until the determining indicates that the 3D heat exchange fin models are effective at reducing the first and second thermal effects.

10 . The method according to claim 8 , further comprising:

determining whether the 3D weight reduction cavity models are associated with an increased stress;

refining the 3D weight reduction cavity models based on a result of the determining; and

repeating the determining and the refining until the determining indicates that the 3D weight reduction cavity models are not associated with the increased stress.

11 . The method according to claim 8 , wherein the 3D heat exchange fin models are representative of the heat exchange fins integrally built on the surface.

12 . The method according to claim 8 , wherein the 3D heat exchange fin models are representative of the heat exchange fins provided as an array of surface features integrally built on the surface.

13 . The method according to claim 8 , wherein the 3D heat exchange fin models are representative of the heat exchange fins provided as an array of surface features integrally built on the surface and configured to channel oil thereon.

14 . A bearing chamber, comprising:

a bearing chamber body comprising a portion of the bearing chamber body defining weight reduction cavities;

a surface extending off the bearing chamber body; and

heat exchange fins integrally formed with the surface to be disposed at a distance from and to face inwardly toward the portion of the bearing chamber body,

the heat exchange fins being configured to reduce first thermal effects the bearing chamber is expected to experience during additive manufacturing thereof and to reduce second thermal effects the bearing chamber is expected to experience during operational use thereof, and

the portion of the bearing chamber body toward which the heat exchange fins face defining the weight reduction cavities for weight-neutralizing the heat exchange fins.

15 . The bearing chamber according to claim 14 , wherein the heat exchange fins are provided as an array of surface features integrally built on the surface.

16 . The bearing chamber according to claim 14 , wherein the heat exchange fins are provided as an array of surface features integrally built on the surface and configured to channel oil thereon.