Patent ID: 6808364
Filing Date: 2004-10-26
Classification: F01D,F05D

Abstract:
A method for assembling a variable vane assembly for a gas turbine engine including a casing, the variable vane assembly including a seal assembly and at least one variable vane that includes a platform and a trunnion, wherein the platform extends radially outwardly from the trunnion, said method comprising:coupling a seal assembly journal bushing to the variable vane such that the journal bushing is against the trunnion to prevent contact between the trunnion and the engine casing, and wherein the journal bushing has a substantially constant diameter extending between a first end and a second end of the journal bushing; positioning a first washer on the platform to prevent contact between the variable vane assembly and the engine casing, wherein the first washer is substantially flat and contacts the seal assembly journal bushing; positioning a second washer in contact with the trunnion and adjacent the journal bushing second end such that the second washer and the journal bushing are separated by a substantially uniform gap defined therebetween: and positioning the variable vane assembly within an opening extending through the engine casing, and such that variable vane assembly trunnion extends through the opening.