Jeffrey C Moree

US Patent:

20110299977, Dec 8, 2011

Filed:

Jun 3, 2010

Appl. No.:

12/793191

Inventors:

John David Memmer - Simpsonville SC, US
Jeffrey Craig Moree - Greer SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 11/08
B23P 6/00

US Classification:

4151734, 29888021

Abstract:

A turbomachine includes a compressor provided with a casing having an inner surface defining a flow path. At least one blade is rotatable within the flow path. The at least one blade includes a tip portion that is spaced from the inner surface. At least one patch ring segment is mounted to the inner surface of the casing. The at least one patch ring segment includes a body having a first end that extends to a second end through a surface portion. A first wall member extends from the first end and a second wall member extends from the second end. The first and second wall members include in-turned sections that define a C-shaped cross-section of the at least one patch ring segment.