公开(公告)号：US20220055763A1

公开(公告)日：2022-02-24

申请号：US17517936

申请日：2021-11-03

Applicant: Raytheon Technologies Corporation

Inventor： Neil Terwilliger ,  Sorin Bengea

IPC: B64D31/00 ,  B64D41/00 ,  F01D15/10 ,  F01D17/16

Abstract: An aspect includes a method of variable cycle compensation in a gas turbine engine. An electric component can be adjusted to compensate for a power change induced by an actuation system by operating the electric component as an electric motor to compensate for an increase in power absorption or a decrease in power production of a turbomachinery of the gas turbine engine. The actuation system is configured to adjust a variable cycle of the turbomachinery by adjusting power absorption or power production, and the electric component can be configured to add or subtract torque to a shaft of the gas turbine engine. The electric component can be operated as an electric generator to compensate for an increase in power production or a decrease in power absorption of the turbomachinery.

公开(公告)号：US20230136475A1

公开(公告)日：2023-05-04

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：US20230160347A1

公开(公告)日：2023-05-25

申请号：US18153487

申请日：2023-01-12

Applicant: Raytheon Technologies Corporation

Inventor： Timothy J. Crowley ,  Sorin Bengea ,  Manuj Dhingra ,  David Gelwan ,  Kevin Hendricks ,  Joshua Adams ,  Martin Richard Amari ,  Richard P. Meisner ,  David Lei Ma

IPC: F02C9/00 ,  B64D27/02

CPC classification number: F02C9/00 ,  B64D27/02 ,  B64D2027/026 ,  F05D2220/76 ,  F05D2220/323 ,  F05D2240/60 ,  F05D2260/80 ,  F05D2270/09 ,  F05D2270/20 ,  F05D2270/44 ,  F05D2270/80

Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.

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.

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.