Method and apparatus for balancing gas turbine engines

Details Method and apparatus for balancing gas turbine engines Method and apparatus for balancing gas turbine engines

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 25/04 (2006.01) F02C 7/00 (2006.01)

Patent

CA 2529530

A method is provided for field balancing an assembly including a power turbine (24). The method includes coupling the power turbine to a load (12), identifying a first balancing plane that is aft of the power turbine, and identifying a second balancing plane that is forward of the power turbine. A balancing correction is determined at each of the first and second balancing planes. A balance weight (200) is mounted at the first balancing plane based on the balancing correction determined for the first balancing plane, and a balance weight is mounted at the second balancing plane based on the balancing correction determined for the second balancing plane, wherein each balance weight is coupled to at least two respective bolt heads (106) without removing the bolts.

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