Interlocking dovetail geometry joint

Patent metadata

Field	Value
Publication number	US-12044488-B2
Application number	US-202117449747-A
Country	US
Kind code	B2
Filing date	Oct 1, 2021
Priority date	Oct 1, 2021
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

A method of manufacturing a heat exchanger. The method includes additively manufacturing a first body with a first plurality of passages extending through the first body. Additively manufacturing a second body with a second plurality of passages extending through the second body. The method also includes, interlocking the first body with the second body such that the first plurality of passages is aligned with the second plurality of passages and fluidically connected with the second plurality of passages.

First claim

The invention claimed is:

1. An assembly extending in a lengthwise direction, a widthwise direction, and a height-wise direction comprising:
a first body, wherein the first body comprises:
a height in the height-wise direction;
a width in the widthwise direction extended between a first side and a second side;
a length in the lengthwise direction;
a first surface extending the length of the first body in the lengthwise direction, wherein the first surface faces the first side of the first body;
a second surface opposite the first surface and extending the length of the first body in the lengthwise direction, wherein the second surface faces the second side of the first body;
a mating surface between the first surface and the second surface, wherein the mating surface includes a first plurality of passages extending through the mating surface in a height-wise direction; and
a groove extending the length of the first body in the lengthwise direction between the first surface of the first body and the second surface of the first body and

a second body comprising:
a height in the height-wise direction;
a width in the widthwise direction extending between a first side and a second side;
a length in the lengthwise direction;
a second groove, wherein the second groove comprises:
a first side extending in the lengthwise direction and the height-wise direction, wherein the first side of the second groove faces the first side of the second body;
a second side extending in the lengthwise direction and the height-wise direction, wherein the second side is opposite the first side, and wherein the second side of the second groove faces the second side of the second body;
a second plurality of passages extending through the second groove in a height-wise direction; and
a rail in the second groove and extending the length of the second body in the lengthwise direction between the first side of the second groove and the second side of the second groove,

wherein the first surface of the first body faces the first side of the second groove, and wherein the second surface of the first body faces the second side of the second groove, and wherein the rail of the second body fits within the groove;
wherein when the first body and the second body are assembled to make an assembly, the first plurality of passages are aligned with the second plurality of passages so that a fluid can pass through the first body and the second body in a height-wise direction through the first plurality of passages and the second plurality of passages.

2. The assembly of claim 1 , wherein the groove comprises:
a first angled side;
a connecting side; and
a second angled side, wherein the second angled side is opposite the first angled side, and
wherein the connecting side extends in the widthwise direction between the first angled side and the second angled side to form a dovetail groove profile, and
wherein the rail of the second groove comprises:
a first angled side;
a connecting side; and
a second angled side, wherein the second angled side of the rail is opposite the first angled side of the rail, and wherein the connecting side of the rail extends in the widthwise direction from the first angled side of the rail to the second angled side of the rail to form a dovetail rail profile.

3. The assembly of claim 2 , wherein the first angled side of the rail faces the first angled side of the groove, wherein the connecting side of the rail faces the connecting side of the groove, and wherein the second angled side of the rail faces the second angled side of the groove.

4. The assembly of claim 3 , further comprising:
a locking member extending in the widthwise direction, wherein the locking member is configured to be attached to the first body and the second body, and wherein the locking member is configured to keep the rail of the second body within the groove of the first body.

5. The assembly of claim 4 , wherein the first body is brazed to the second body, and wherein the locking member is welded to the first body and the second body.

6. The assembly of claim 5 , wherein the first body is a first heat exchanger, and wherein the second body is a second heat exchanger.

7. The assembly of claim 6 , wherein the first heat exchanger comprises:
a first plurality of passages extending through the first heat exchanger in the height-wise direction.

8. The assembly of claim 7 , wherein the second heat exchanger comprises:
a second plurality of passages extending through the second heat exchanger in the height-wise direction.

9. The assembly of claim 8 , wherein the first plurality of passages of the first heat exchanger is aligned with and fluidically connected to the second plurality of passages of the second heat exchanger.

10. The assembly of claim 5 , wherein the first body is a first pressure vessel, and wherein the second body is a second pressure vessel.

11. The assembly of claim 10 , wherein the first pressure vessel comprises:
a first plurality of passages extending within the first pressure vessel in the height-wise direction.

12. The assembly of claim 11 , wherein the second pressure vessel comprises:
a second plurality of passages extending within the second pressure vessel in the height-wise direction, wherein the first plurality of passages of the first pressure vessel extends through the mating surface of the first body, and wherein the second plurality of passages of the second pressure vessel extends in the height-wise direction through the second groove of the second body.

13. The assembly of claim 12 , wherein the first plurality of passages of the first pressure vessel is aligned with and fluidically connected to the second plurality of passages of the second pressure vessel.

14. An assembly extending in a lengthwise direction, a widthwise direction, and a height-wise direction comprising:
a first body comprising:
a height in the height-wise direction;
a width in the widthwise direction;
a length in the lengthwise direction;
a first tapered surface tapered at a first angle extending in the lengthwise direction and in the height-wise direction;
a second tapered surface tapered at a second angle extending in the lengthwise direction and extending in the height-wise direction, wherein the second tapered surface is opposite the first tapered surface; and
a mating surface between the first tapered surface and the second tapered surface; and
a groove extending on the mating surface and the length of the first body in the lengthwise direction between the first tapered surface and the second tapered surface, wherein the groove of the mating surface comprises:
a first angled side;
a connecting side; and
a second angled side, wherein the second angled side is opposite the first angled side, and wherein the connecting side extends in the widthwise direction between the first angled side and the second angled side; and

a second body comprising:
a height in the height-wise direction;
a width in the widthwise direction extending between a first side and a second side;
a length in the lengthwise direction;
a second groove comprising:
a first tapered surface tapered at the first angle and extending in the lengthwise direction and extending in the height-wise direction;
a second tapered surface tapered at the second angle and extending in the lengthwise direction and extending in the height-wise direction, wherein the second tapered surface of the second body is opposite the first tapered surface of the second body; and
a rail in the second groove and extending the length of the second body in the lengthwise

Assignees

• Hamilton Sundstrand Corp

Inventors

• Benson Callie
• Muntges Daniel E
• Sypek John
• Brooky Keith J
• Colson Paul M
• Doe Michael

Classifications

• F28F2280/00

  Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts · CPC title

• F28F7/02

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

• Y02P10/25

  Process efficiency · CPC title

• F16B2200/30

  Dovetail-like connections · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title