Granted Patent B2

US 12,352,172 · App. 18/071,070 · Granted Jul 8, 2025

Inventors: Raymond Surace (Newington, CT); Robert A. White, III (Meriden, CT); Howard J. Liles (Newington, CT); Bryan P. Dube (Chepachet, RI)

Assignee: RTX Corporation

F01D11/00F05D2230/90F05D2300/603F05D2300/611

Abstract

Claims (8)

1. A method of coating a seal slot, comprising:

1) Applying a coating to a slot in a first component;

2) machining the coating to provide an open height configured to receive a seal, such that a ratio of a thickness of the coating to the open height is less than or equal to about 2, and wherein after the machining a surface roughness of the coating is less than about 100 ra; and

wherein a ceramic seal is positioned in the slot in the first component;

forming a slot in a second component using steps 1) and 2), and putting the ceramic seal in the slot in the second component;

the first component is formed of a ceramic material and the second component is formed of a metallic material;

wherein the coating has a porosity of less than about 5%; and

wherein the applying of step 1) includes filling in the entirety of the slot with the coating and then machining the coating of step 2) to reach the open height.

Assignments (3)

Continuity (1)

References Cited (24)