Variable stator vane assembly for an axial flow compressor of a gas turbine engine
AssigneeGeneral Electric Company
InventorsSrinivasan Venkatasubbu, Stephen R. Payling
Life of this patent
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Abstract
A variable angle stator vane assembly for an axial flow gas turbine engine compressor. The compressor casing has a bore surrounded by a boss at the position of each assembly. A housing having a central bore and a bushing assembly is located in the casing bore and is bolted to the boss. The stator vane spindle extends through the housing bore and busing assembly. The housing and bushing assembly can be removed from the casing bore, to be rotated 180.degree. or replaced, without removing the casing from the compressor or the stator vane spindle from the casing bore.
Claims13
A variable angle stator vane assembly for use in an axial flow compressor of a gas turbine engine having a compressor casing with a bore formed therein at the position of said variable angle stator vane assembly, said variable angle stator vane assembly comprising:
- an upstanding external boss integrally formed on said casing and surrounding said casing bore, a housing having a central bore, a bushing assembly in said housing, said housing having a body mounted in said casing bore and an integrally formed lateral flange overlying and removably affixed to said external casing boss, said variable angle stator vane having a base terminating in a spindle rotatively mounted in said bushing assembly, said housing and bushing assembly thereof being removable and replaceable from the exterior of said casing without removing said casing from said compressor or said stator vane spindle from said casing bore.
Dependencies are inferred from the claim text.