公开(公告)号：US12180846B2

公开(公告)日：2024-12-31

申请号：US17866841

申请日：2022-07-18

Applicant: Raytheon Technologies Corporation

Inventor： Neil Terwilliger ,  Christopher J Hanlon ,  Sorin Bengea ,  Zubair Ahmed Baig

IPC: F01D11/24

Abstract: A method for active bi-directional control of an outer structure of a gas turbine engine comprises sending, by a controller, a first control signal to a power electronics for varying an electric current supplied to a heating element to cause the outer structure to move in a first radial direction, and sending, by the controller, a second control signal to a valve assembly for varying a cooling air flow supplied to the outer structure to cause the outer structure to move in a second radial direction. The first radial direction is opposite the second radial direction.

公开(公告)号：US11421545B2

公开(公告)日：2022-08-23

申请号：US16938579

申请日：2020-07-24

Applicant: Raytheon Technologies Corporation

Inventor： Neil Terwilliger ,  Christopher J Hanlon ,  Sorin Bengea ,  Zubair Ahmed Baig

IPC: F01D11/24

Abstract: A clearance control system for a gas turbine engine may include a rotor blade, an outer structure disposed radially outward from the rotor blade, a heating element, a hybrid electric power source, and a controller. The heating element is configured to cause the outer structure to be heated in response to electric current being supplied to the heating element. A gap between the rotor blade and the outer structure is at least one of increased, decreased, and maintained in response to the outer structure being heated. The hybrid electric power source is configured to supply the electric current to the heating element. The controller is configured to regulate the electric current being supplied to the heating element.