Solar Turbines Inc.

Garrett P Prins

John Francis Lorentzen

Scott L Stafford

Philip J Cederwall

James Maleski

Matthew Novaresi

Vern V Leuven

Manuel Iribe-Moreno

Michael Theodore Austin

Keith Levon Harrell

This disclosure provides a seal strip assembly for a sealing strip slot to reduce air leakage between gas turbine nozzle segments. The seal strip assembly includes a bimetal element and a backing plate. The bimetal element includes a first layer with a first thermal coefficient of thermal expansion and a second layer with a second coefficient of thermal expansion. The second coefficient of thermal expansion is lower than the first coefficient of thermal expansion allowing the bimetal element to expand with an increase in surrounding temperature.

Nozzle segment air seal

Trim balancing of rotating components in the past has increased manufacturing cost. In many past applications, the time and energy required to trim balance rotating components required partial disassembly of an outer case or structure member. The present trim balancing system allows the gas turbine engine to be balanced with the outer case in situ. Access to a rotating component from the exterior of the case is made possible by a compressor air flow path and a pair of holes. The balancing can be accomplished by adding or removing weights or plugs to a band assembled on the rotating component.

Method and apparatus for trim balancing a gas turbine engine

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San Diego, CA, United States of America

Garrett P Prins