Method and apparatus for reducing eccentricity in a...

Details Method and apparatus for reducing eccentricity in a... Method and apparatus for reducing eccentricity in a...

F - Mech Eng,Light,Heat,Weapons

01

D

170/62

F01D 25/28 (2006.01) F02C 7/20 (2006.01)

Patent

CA 1119521

13DV-7260 METHOD AND APPARATUS FOR REDUCING ECCENTRICITY IN A TURBOMACHINE Abstract An inherent eccentricity between the rotor bearings and the stator shroud is reduced by intentionally fabricating into each of a pair of frame annuluses, outer and inner surfaces which are relatively eccentric, and then rotating the annuluses with respect to each other until the inherent eccentricity is substantially offset. A method is provided to determine the optimum relative rotational positions as a function of the measured inherent eccentricity, and restrictions in the number of possible rotational positions are considered.

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