Patent Number: 7,761,990

Title: Method of repairing a stationary airfoil array directing three-dimensional flow

Abstract: A method of replacing an individual damaged compressor stator airfoil includes machining an oversized slot through the stator casing, removing the damaged airfoil, and joining a sleeve to the replacement airfoil and stator casing. The oversized slot creates sufficient clearance for removal of a three-dimensional airfoil, while the sleeve creates a sufficiently tight fit to allow the pieces to be brazed together.

Inventors: Ellis; Wes L. (Leesburg, OH), Greene; Mark (Winchester, OH)

Assignee: PAS Technologies, Inc.

International Classification: B23P 6/00 (20060101); B21K 25/00 (20060101); F03D 5/00 (20060101)

Expiration Date: 7/27/12018