IP Library Granted Patent US 12,173,613
Granted Patent B2
US 12,173,613 · App. 18/631,497 · Granted Dec 24, 2024

Airfoil tip cleaning and assessment systems and methods

Inventors: Ron I. Prihar (West Hartford, CT); Tracy A. Propheter-Hinckley (Rocky Hill, CT)
Assignee: RTX CORPORATION
F01D5/14F01D11/122F05D2230/72
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Quick Facts
Patent No.
US 12,173,613
App. No.
18/631,497
Granted
Dec 24, 2024
Kind
B2
Abstract

A method comprises: flowing a potted component in a liquid state over a tip of an airfoil, the tip of the airfoil having a coating disposed thereon, the coating comprising a metal plating and a plurality of protrusions, each protrusion in the plurality of protrusions extending from the metal plating; allowing the potted component to harden to form a hardened potted component; and removing the hardened potted component from the tip of the airfoil.

Claims (14)

1. A method, comprising:

flowing a potted component in a liquid state over a tip of an airfoil, the tip of the airfoil having a coating disposed thereon, the coating comprising a metal plating and a plurality of protrusions, each protrusion in the plurality of protrusions extending from the metal plating;

allowing the potted component to harden to form a hardened potted component; and

removing the hardened potted component from the tip of the airfoil.

2. The method of claim 1 , wherein loose particles are coupled to the potted component in response to allowing the potted component to harden.

3. The method of claim 2 , further comprising creating a mold of the tip of the airfoil with a second potted component.

4. The method of claim 3 , further comprising analyzing a mold surface of the mold to determine whether the plurality of protrusions of the coating contain sufficient coverage of the tip of the airfoil.

5. The method of claim 4 , further comprising replacing the coating in response to determining the coating does not maintain sufficient coverage.

6. The method of claim 1 , wherein the hardened potted component defines a mold of the tip of the airfoil, the mold including a mold surface having a plurality of recesses.

7. The method of claim 6 , further comprising:

scanning the mold; and

comparing a recess density for each local area of the mold surface to a recess density threshold corresponding to a protrusion density threshold of the plurality of protrusions.

8. The method of claim 7 , further comprising determining, based on the comparing, whether the coating maintains sufficient coverage for the airfoil to be placed back in service.

9. The method of claim 8 , further comprising replacing the coating in response to determining the coating does not maintain sufficient coverage.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2024
From: PRIHAR, RON I.; PROPHETER-HINCKLEY, TRACY A.
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 067066/0442 →
CHANGE OF NAME Recorded Apr 10, 2024
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 067070/0258 →
Continuity (3)
Division 18339839 · Jun 22, 2023
Division 17744530 · May 13, 2022
Related Publication 20240271532A1 · Aug 15, 2024