Selective thermal coating of cooling holes with air flow

Patent metadata

Field	Value
Publication number	US-10829845-B2
Application number	US-201715400381-A
Country	US
Kind code	B2
Filing date	Jan 6, 2017
Priority date	Jan 6, 2017
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A system according to various embodiments can include: a coating system configured to apply a thermal coating material to a component, the component having a plurality of cooling holes; an airflow system coupled with the coating system, the airflow system configured to force air through the component; and a control system coupled with the airflow system and the coating system, the control system configured to: detect coating instructions for the coating system, the coating instructions instructing the coating system to apply the thermal coating material to a subset of the plurality of cooling holes; and instruct the airflow system to force air through the subset of the plurality of cooling holes during application of the thermal coating material to the component in response to detecting the coating instructions.

First claim

We claim:

1. A system comprising:
a coating system configured to apply a thermal coating material to a component, the component having a plurality of cooling holes having distinct flow paths within the component such that fluid will flow through a first distinct subset of cooling holes and will not flow through a second distinct subset of cooling holes;
an airflow system coupled with the coating system, the airflow system configured to force air through the component, wherein the air flow system includes a plurality of independent cooling channels, each of the plurality of independent cooling channels selectively coupled to a distinct subset of the plurality of cooling holes; and
a control system coupled with the airflow system and the coating system, the control system configured to:
detect coating instructions for the coating system, the coating instructions instructing the coating system to apply the thermal coating material to a surface of the first distinct subset of the plurality of cooling holes; and
instruct the airflow system to force air only through the first distinct subset of the plurality of cooling holes during application of the thermal coating material to the component in response to detecting the coating instructions.

2. The system of claim 1 , wherein the airflow system further includes a rotary air slip ring for forcing the air through the component.

3. The system of claim 2 , wherein the rotary air slip ring permits the component to rotate greater than 360 degrees about a primary axis of the airflow system without limiting air flow to the component.

4. The system of claim 3 , wherein the coating system includes a coating robot.

5. The system of claim 4 , wherein the coating robot is configured to remain stationary during application of the thermal coating material.

6. The system of claim 1 , wherein the thermal coating material includes a thermal barrier coating (TBC).

7. The system of claim 1 , wherein the control system detects the coating instructions prior to the application of the thermal coating material by the coating system.

8. The system of claim 1 , wherein each distinct subset of the plurality of cooling holes includes cooling holes within a single region of the component.

9. The system of claim 1 , wherein the component includes a gas turbine (GT) component.

Assignees

• Gen Electric

Inventors

• Hanson Gerhart Lamoyne
• Lajeunesse Eugene Vincent
• Pezant Michael Bryan
• Scorza Jr Paul Michael
• Smith Martin Lewis
• Wiesner Gary Edward

Classifications

• B05B13/06

  specially designed for treating the inside of hollow bodies (spray heads B05B1/00 - B05B7/00; {devices for covering leaks in pipes or hoses, e.g. hose-menders, from inside the pipe F16L55/162; sprayed layers of rubber or plastics for internal protection of pipes or pipe fittings against corrosion or incrustation F16L58/1027}) · CPC title

• F01D5/005

  Repairing methods or devices · CPC title

• B05B13/0431

  with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to three-dimensional [3D] surfaces · CPC title

• F01D5/28

  Selecting particular materials; {Particular measures relating thereto;} Measures against erosion or corrosion · CPC title

• F05D2300/611

  Coating · CPC title