Liner assembly and method of turbulator fabrication

Patent metadata

Field	Value
Publication number	US-9989255-B2
Application number	US-201414341152-A
Country	US
Kind code	B2
Filing date	Jul 25, 2014
Priority date	Jul 25, 2014
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

A method of turbulator fabrication is provided and includes additively disposing an elongate flexible member in tension onto a liner body, dispensing braze paste at an elongate flexible member-liner body interface and conducting a brazing process with respect to the braze paste to attach the elongate flexible member to the liner body.

First claim

The invention claimed is:

1. A method of turbulator fabrication, the method comprising:
arranging a liner body in a standing position with a longitudinal axis of the liner body oriented in a vertical direction;
additively disposing an elongate flexible member in tension from a spool onto the liner body by welding an end of the elongate flexible member to the liner body and wrapping the elongate flexible member onto the liner body while maintaining tension in the elongate flexible member;
dispensing braze paste at an elongate flexible member-liner body interface; and
conducting a brazing process with respect to the braze paste to attach the elongate flexible member to the liner body.

2. The method according to claim 1 , wherein the arranging the liner body in the standing position comprises disposing the liner body on a rotatable jig; and
wherein the method further comprises rotating the jig.

3. The method according to claim 1 , further comprising:
additively disposing a wire in tension onto the liner body proximate to the previously disposed elongate flexible member or onto the previously disposed elongate flexible member; and
dispensing braze paste at an interface between the previously disposed elongated flexible member, the wire, and, optionally, the liner body.

4. The method according to claim 1 , wherein the dispensing is conducted during or following the wrapping.

5. The method according to claim 4 , wherein the conducting of the brazing process is completed in a vacuum.

6. A method of turbulator fabrication, the method comprising:
arranging a liner body in a standing position with a longitudinal axis of the liner body oriented in a vertical direction;
spirally wrapping an elongate flexible member in tension onto the liner body by moving along the longitudinal axis an elongate flexible member spool in which the elongate flexible member is partially contained and from which the elongate flexible member is dispensable;
dispensing braze paste at an upper corner of an interface between the elongate flexible member and the liner body; and
conducting a brazing process with respect to the braze paste to attach the elongate flexible member to the liner body.

7. The method according to claim 6 , wherein the arranging of the liner body comprises disposing the liner body on a rotatable jig; and wherein the spirally wrapping of the elongate flexible member comprises rotating the jig.

8. The method according to claim 6 , further comprising:
wrapping a second elongate flexible member in tension onto the liner body proximate to the previously wrapped elongate flexible member; and
dispensing braze paste on an interface of the previously wrapped elongate flexible member, the second elongate flexible member, and, optionally, the liner.

9. The method according to claim 8 , further comprising:
wrapping a third elongate flexible member in tension onto one or more of the previously wrapped elongate flexible member and the second elongate flexible member; and
dispensing braze paste on an interface of the third elongate flexible member and at least one of the previously wrapped elongate flexible member and the second elongate flexible member.

10. The method according to claim 6 , wherein the spirally wrapping of the elongate flexible member comprises welding opposite ends of the elongate flexible member onto the liner body.

11. The method according to claim 6 , wherein the dispensing is conducted during or following the wrapping.

12. The method according to claim 6 , wherein the conducting of the brazing process is completed in a vacuum.

13. The method according to claim 6 , wherein the elongate flexible member is hollow.

Assignees

• Gen Electric

Inventors

• Lin Dechao
• Tollison Brian Lee
• Kottilingam Srikanth Chandrudu
• Cui Yan

Classifications

• B23K2203/26

  Operations & Transport · mapped topic

• F23R3/002 Primary

  Wall structures (F23R3/02 and F23R3/007 take precedence) · CPC title

• B23K2201/001

  Operations & Transport · mapped topic

• B23K1/008

  Soldering within a furnace (B23K1/012 takes precedence) · CPC title

• B23K2203/04

  Operations & Transport · mapped topic