公开(公告)号：US11808161B2

公开(公告)日：2023-11-07

申请号：US17717387

申请日：2022-04-11

Applicant: General Electric Company

Inventor： Jixian Yao ,  Kishore Ramakrishnan ,  Trevor Howard Wood ,  Mustafa Dindar

IPC: F01D25/24 ,  B64C21/06 ,  B64C21/02

CPC classification number: F01D25/24 ,  B64C21/02 ,  B64C21/06 ,  F05D2220/323 ,  F05D2240/14 ,  F05D2260/60

Abstract: A turbofan engine is provided. The turbofan engine includes a fan comprising a plurality of fan blades; and a nacelle that circumferentially surrounds the fan, the nacelle comprising an annular wall having an exterior surface and an interior surface, the exterior surface comprising a first exterior portion, and the interior surface comprising a first interior portion, wherein a first exterior portion is formed of a first structure defining an exterior surface porosity, and wherein a first interior portion is formed of a second structure defining an interior surface porosity.

公开(公告)号：US20230323834A1

公开(公告)日：2023-10-12

申请号：US17841868

申请日：2022-06-16

Applicant: General Electric Company

Inventor： Ravish Karve ,  Vishnu Vardhan Venkata Tatiparthi ,  Trevor Howard Wood

IPC: F02K3/00 ,  F02C7/04

CPC classification number: F02K3/00 ,  F02C7/04

Abstract: A gas turbine engine defining an axial direction and a radial direction, the gas turbine engine including: a turbomachine; a fan rotatable by the turbomachine, the fan including a plurality of fan blades; a plurality of outlet guide vanes located downstream of the plurality of fan blades of the fan; a casing surrounding the plurality of fan blades or surrounding at least in part the turbomachine, the casing defining an opening at a location upstream of the plurality of outlet guide vanes; and a compressed airflow injection assembly positioned at least partially within the casing and configured to provide a flow of compressed airflow through the opening in a repeating pattern during an operating condition of the gas turbine engine.

公开(公告)号：US20230323791A1

公开(公告)日：2023-10-12

申请号：US17717387

申请日：2022-04-11

Applicant: General Electric Company

Inventor： Jixian Yao ,  Kishore Ramakrishnan ,  Trevor Howard Wood ,  Mustafa Dindar

IPC: F01D25/24 ,  B64C21/06

CPC classification number: F01D25/24 ,  B64C21/06 ,  F05D2220/323 ,  F05D2240/14 ,  F05D2260/60

Abstract: A turbofan engine is provided. The turbofan engine includes a fan comprising a plurality of fan blades; and a nacelle that circumferentially surrounds the fan, the nacelle comprising an annular wall having an exterior surface and an interior surface, the exterior surface comprising a first exterior portion, and the interior surface comprising a first interior portion, wherein a first exterior portion is formed of a first structure defining an exterior surface porosity, and wherein a first interior portion is formed of a second structure defining an interior surface porosity.

公开(公告)号：US20230313754A1

公开(公告)日：2023-10-05

申请号：US17713597

申请日：2022-04-05

Applicant: General Electric Company

Inventor： Trevor Howard Wood ,  Kishore Ramakrishnan ,  Justin John Gambone, JR. ,  Darren Lee Hallman ,  Thomas Malkus ,  Jixian Yao ,  Keith Edward James Blodgett

IPC: F02K1/72 ,  F02K1/76

CPC classification number: F02K1/72 ,  F02K1/766 ,  F05D2220/323 ,  F05D2240/14 ,  F05D2260/606 ,  F05D2240/129

Abstract: A cascade thrust reverser assembly for a gas turbine engine includes a nacelle assembly defining a bypass passage. The cascade thrust reverser assembly includes a cascade assembly configured to be at least partially enclosed by the nacelle assembly, the cascade assembly comprising one or more cascade members, the one or more cascade members movable between a stowed configuration wherein the one or more cascade members define a first radial extent and a deployed configuration wherein the one or more cascade members define a second radial extent, wherein the one or more cascade members form a cascade segment in the deployed configuration, and wherein the second radial extent is greater than the first radial extent.

公开(公告)号：US20230150681A1

公开(公告)日：2023-05-18

申请号：US17526383

申请日：2021-11-15

Applicant: General Electric Company

Inventor： Kishore Ramakrishnan ,  Trevor Howard Wood ,  Stefan Joseph Cafaro ,  Robert Jon McQuiston ,  David Marion Ostdiek ,  Timothy Richard DePuy ,  Trevor Goerig ,  Eric Richard Westervelt

IPC: B64D31/06 ,  B64D27/12

CPC classification number: B64D31/06 ,  B64D27/12 ,  B64C2220/00

Abstract: Systems and methods for controlling an unducted turbofan engine to limit noise. The unducted turbofan engine may include an unducted fan drivingly coupled with a low-pressure turbine and a plurality of unducted outlet guide vanes. The unducted fan may include a plurality of fan blades and a pitch angle of the fan blades may be variable. A pitch angle of the unducted outlet guide vanes may be variable. A controller is configured to control the engine to limit noise based on a noise sensitive condition.

公开(公告)号：US20220389882A1

公开(公告)日：2022-12-08

申请号：US17338073

申请日：2021-06-03

Applicant: General Electric Company

Inventor： Wendy Wenling Lin ,  David Herman ,  Trevor Howard Wood ,  Nikolai N. Pastouchenko ,  Kishore Ramakrishnan ,  Timothy Richard DePuy ,  Robert William Davidoff

IPC: F02K1/82 ,  G10K11/172 ,  F03D80/00 ,  G10K11/16

Abstract: An acoustic core may include an array of resonant cells configured as a plurality of resonant cell groups. The resonant cell groups may include a plurality of resonant cells configured as a partitioned resonant cell that include a converging resonant cell and a diverging resonant cell. The converging resonant cell and the diverging resonant cell may be defined by a plurality of cell walls integrally formed with one another and a partition integrally formed with the plurality of cell walls. The partition may at least partially delimit the converging resonant cell from the diverging resonant cell. The converging resonant cell may define an upper resonant space delimited by the partition and a top face of the array of resonant cells. The diverging resonant cell may define a lower resonant space delimited by the partition and a bottom face of the array of resonant cells.

公开(公告)号：US11136109B2

公开(公告)日：2021-10-05

申请号：US16550868

申请日：2019-08-26

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Trevor Howard Wood ,  Kishore Ramakrishnan

IPC: F01D5/14 ,  B64C11/18 ,  F04D29/32 ,  B64D27/00

Abstract: In some embodiments, an airfoil comprises a proximal end; a distal end opposite said proximal end; a distal portion extending adjacent said distal end; an edge extending between said proximal end and said distal end; and a surface extending between said proximal end and said distal end, said edge and said surface defining a sweep and a cahedral through said distal portion, wherein the distal portion extends over an acoustically active portion of the airfoil.

公开(公告)号：US10829206B2

公开(公告)日：2020-11-10

申请号：US15429829

申请日：2017-02-10

Applicant: General Electric Company

Inventor： Trevor Howard Wood ,  Kishore Ramakrishnan ,  Davide Giacché

IPC: B64C21/10 ,  B64D27/12 ,  B64C3/10 ,  B64C3/16

Abstract: An apparatus configured to reduce acoustic interactions between a propeller and a surface of an aircraft positioned downstream of the propeller includes a surface modification element of the surface of the aircraft. The surface modification element defines a modified contour of the surface. The modified contour is configured to decorrelate a phase distribution of a plurality of sound sources within a source field positioned on at least a portion of the surface.

公开(公告)号：US10677163B2

公开(公告)日：2020-06-09

申请号：US15833390

申请日：2017-12-06

Applicant: General Electric Company

Inventor： Nikolai N. Pastouchenko ,  Lawrence Chih-hui Cheung ,  Umesh Paliath ,  Trevor Howard Wood ,  Hongbin Ju

IPC: F02C7/045 ,  B64D33/02 ,  F02K1/82

Abstract: Noise attenuation structures, such as acoustic liners for gas turbine engines, are provided. For example, an acoustic liner comprises a face sheet, a backing sheet spaced apart from the face sheet, and a plurality of cavities defined between the face and backing sheets. The cavities are defined by cavity walls. A plurality of backing sheet walls extends from the backing sheet toward the face sheet. The backing sheet walls extend adjacent the cavity walls, and the backing sheet is movable with respect to the face sheet such that the cavities have a variable depth. Other embodiments of noise attenuation structures also are provided.

公开(公告)号：US20170152019A1

公开(公告)日：2017-06-01

申请号：US15092255

申请日：2016-04-06

Applicant: General Electric Company

Inventor： Trevor Howard Wood ,  Kishore Ramakrishnan

IPC: B64C11/18 ,  F04D29/66 ,  F04D29/38

CPC classification number: B64C11/18 ,  F04D29/324

Abstract: An airfoil includes a proximal end and a distal end opposite the proximal end. The airfoil also includes a distal portion extending adjacent the distal end and an edge extending between the proximal end and the distal end. The airfoil further includes a surface extending between the proximal end and the distal end. The edge and the surface define a sweep and a cahedral through the distal portion and at least a portion of the intermediate portion.