General Electric Company

Timothy M Kasberg

David Marion Ostdiek

Syed J Khalid

Kevin Richard Graziano

Tyler Frederick Hooper

Timothy Leo Schelfaut

Michael Scott McCambridge

Brendon Matthew Leeker

Massimo Rufo

Logan Daniel Fritz

Jason Holden

A method for reducing a clearance gap between a plurality of rotor blades and a shroud assembly of an engine includes determining, with a flight control system, that an airplane is in a first flight condition. The method also includes adjusting the clearance gap to a first clearance gap distance associated with the first flight condition. Further, the method includes receiving, with the flight control system, a demand for a second flight condition. During the second flight condition, the method includes adjusting at least two independently controllable parameters, the at least two independently controllable parameters comprising, at least, a first parameter for optimizing the clearance gap and a second parameter for satisfying a thrust demand of the engine, the first parameter having a first impact on the clearance gap, the second parameter having a second impact on the clearance gap, the first impact being greater than the second impact.

System and method for reducing a clearance gap in an engine

A hybrid-electric gas turbine engine and method of operating includes independently controlling a first electric machine providing torque to a first shaft to maintain a desired clearance between a first set of blades rotatably coupled to the first shaft, and a casing.

Hybrid-electric gas turbine engine and method of operating

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Liberty Township, OH, United States of America

Timothy M Kasberg