Raymond E Ward

US Patent:

20080095590, Apr 24, 2008

Filed:

Oct 19, 2006

Appl. No.:

11/583566

Inventors:

Mark W. Costa - Storrs CT, US
James E. Tracy - Cromwell CT, US
David E. Valentine - East Hampton CT, US
Raymond C. Ward - Ivoryton CT, US
Dana H. Lewis - East Haddam CT, US

International Classification:

B23C 3/00

US Classification:

409132, 409178

Abstract:

An in situ fan case rub strip machining tool mounts to a LPT/fan rotor shaft assembly of a gas turbine engine. After a fan is removed therefrom such that the machining tool is rotatable about an engine axis of rotation in conjunction with rotation of the LPT/fan rotor shaft assembly. The machining tool permits machining of a rub strip within the fan case of the gas turbine engine without disassembly of the fan case from the core engine as heretofore required. As the machining tool is mounted to the LPT/fan rotor shaft assembly, the cutting tool is accurately locatable relative the engine axis of rotation such that the rub strip is evenly and precisely machined to be concentric with the engine axis to assure proper fan blade tip to rub strip interface.