초록 ▼

A system includes a gas turbine engine having a shroud and a rotor with one or more blades. The rotor rotates within the shroud to pressurize a fluid during operation of the engine. An electromagnetic actuator is also included that is operable to move the shroud relative to the rotor to adjust clear

A system includes a gas turbine engine having a shroud and a rotor with one or more blades. The rotor rotates within the shroud to pressurize a fluid during operation of the engine. An electromagnetic actuator is also included that is operable to move the shroud relative to the rotor to adjust clearance between the shroud and blades. In addition, a controller is included in this system to determine a desired amount of clearance in accordance with an operating mode of the engine. The controller generates an actuation signal to change the clearance in correspondence with the desired amount. The electromagnetic actuator responds to the actuation signal to provide the desired amount of clearance.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method, comprising:providing a gas turbine engine including a shroud and an impeller;rotating the impeller within the shroud to provide a pressurized fluid to operate the engine; andmoving the shroud relative to the impeller by electromagnetic actuation to adjust clea

[ What is claimed is:] [1.]1. A method, comprising:providing a gas turbine engine including a shroud and an impeller;rotating the impeller within the shroud to provide a pressurized fluid to operate the engine; andmoving the shroud relative to the impeller by electromagnetic actuation to adjust clearance between the shroud and the impeller.