公开(公告)号：US12275532B2

公开(公告)日：2025-04-15

申请号：US17887872

申请日：2022-08-15

Applicant: General Electric Company

Inventor： Kishore Ramakrishnan ,  Trevor Howard Wood ,  Harry Kirk Mathews, Jr. ,  Eric Richard Westervelt ,  Honggang Wang ,  Timothy Richard DePuy

IPC: B64D31/06 ,  B64D27/10 ,  B64D27/24 ,  B64D27/02

Abstract: An aircraft engine includes a low pressure spool, a high pressure spool, and an alternative power source. The alternative power source is configured to add power to the high pressure spool. A controller is configured to determine a noise sensitive condition; and control, in response to determining the noise sensitive condition, the alternative power source to add power to the high pressure spool.

公开(公告)号：US20240426316A1

公开(公告)日：2024-12-26

申请号：US18826903

申请日：2024-09-06

Applicant: General Electric Company

Inventor： Jixian Yao ,  Trevor H. Wood ,  Kishore Ramakrishnan ,  William J. Solomon ,  Giridhar Jothiprasad ,  Aaron J. King

IPC: F04D29/38 ,  F04D19/00

Abstract: A turbomachine includes an annular casing and a fan disposed inside the annular casing and mounted for rotation about an axial centerline. The fan includes fan blades that extend radially outwardly toward the annular casing. The fan has an average chord fan width according to a first performance factor. The fan has a quantity of fan blades according to a second performance factor.

公开(公告)号：US12116932B2

公开(公告)日：2024-10-15

申请号：US17819426

申请日：2022-08-12

Applicant: General Electric Company

Inventor： Nikolai Pastouchenko ,  Kishore Ramakrishnan ,  Trevor H. Wood ,  Timothy Richard DePuy

IPC: F02C7/045 ,  F01D25/04

CPC classification number: F02C7/045 ,  F01D25/04 ,  F05D2220/32 ,  F05D2260/96

Abstract: An inlet duct for a nacelle of a ducted fan engine includes an inlet portion at an upstream end of the inlet duct, an acoustic liner arranged downstream of the inlet portion, and a fan section arranged downstream of the acoustic liner. The inlet portion and the acoustic liner are coupled together at an inlet-acoustic liner interface extending circumferentially about the inner surface of the inlet duct, and the acoustic liner and the fan section are coupled together at a fan section hardwall-acoustic liner interface extending circumferentially about the inner surface of the inlet duct. At least one of the acoustic liner, the inlet-acoustic liner interface, and the fan section hardwall-acoustic liner interface having a structure that circumferentially alters a magnitude and a phase of an acoustic wave reflection of the inlet duct to attenuate flutter bite of a fan.

公开(公告)号：US20240280067A1

公开(公告)日：2024-08-22

申请号：US18639511

申请日：2024-04-18

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 ,  B33Y80/00 ,  F03D80/00 ,  G10K11/16 ,  G10K11/172

CPC classification number: F02K1/827 ,  F03D80/00 ,  G10K11/161 ,  G10K11/172 ,  B33Y80/00 ,  F05B2260/96 ,  F05D2260/963

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：US20240209746A1

公开(公告)日：2024-06-27

申请号：US18086112

申请日：2022-12-21

Applicant: General Electric Company

Inventor： Kishore Ramakrishnan ,  Ravish Karve ,  Sara Elizabeth Carle ,  Trevor Howard Wood

IPC: F01D9/04 ,  F01D25/28

CPC classification number: F01D9/041 ,  F01D25/28 ,  F05D2220/323 ,  F05D2250/37 ,  F05D2260/961

Abstract: A turbofan engine defining a circumferential direction is provided. The turbofan engine includes: a turbomachine, the turbomachine defining a pylon attachment location along the circumferential direction; an unducted rotor assembly drivingly coupled to the turbomachine, the unducted rotor assembly including a plurality of unducted rotor blades; and a plurality of outlet guide vanes positioned downstream of the plurality of unducted rotor blades, the plurality of outlet guide vanes including NOGV number of outlet guide vanes, the plurality of outlet guide vanes including a first outlet guide vane and a second outlet guide vane adjacent the first outlet guide vane, the first and second outlet guide vanes defining a gap spacing greater than 360 degrees divided by NOGV, and the pylon attachment location positioned outside of between the first and second outlet guide vanes along the circumferential direction.

公开(公告)号：US20240198425A1

公开(公告)日：2024-06-20

申请号：US18590325

申请日：2024-02-28

Applicant: General Electric Company ,  Concept Laser GmbH

Inventor： Eric Edward Halla ,  Ramakrishna Venkata Mallina ,  Kishore Ramakrishnan ,  Shashwat Swami Jaiswal ,  Mohammed Mounir Shalaby ,  Peter Pontiller-Schymura

IPC: B22F10/77 ,  B22F10/28 ,  B22F12/33 ,  B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B22F10/77 ,  B22F10/28 ,  B22F12/33 ,  B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F2201/10

Abstract: A build unit for additively manufacturing three-dimensional objects may include an energy beam system, an irradiation chamber, an inertization system having a return manifold configured to evacuate a process gas from the irradiation chamber. The return manifold includes a plurality of return manifold bodies and return manifold inlet disposed at a bottom of the irradiation chamber. The plurality of return manifold bodies includes one or more return manifold pathways downstream of the return manifold inlet. The plurality of return manifold bodies also includes one or more recapture pathways positioned to receive the process gas into the one or more return manifold pathways that flows past the return manifold inlet.

公开(公告)号：US11970992B2

公开(公告)日：2024-04-30

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 ,  B33Y80/00 ,  F03D80/00 ,  G10K11/16 ,  G10K11/172

CPC classification number: F02K1/827 ,  F03D80/00 ,  G10K11/161 ,  G10K11/172 ,  B33Y80/00 ,  F05B2260/96 ,  F05D2260/963

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：US11873738B2

公开(公告)日：2024-01-16

申请号：US17561422

申请日：2021-12-23

Applicant: General Electric Company

Inventor： Kishore Ramakrishnan ,  Li Zheng ,  Nicholas J. Kray ,  Trevor H. Wood ,  Bugra H. Ertas

IPC: F01D9/04 ,  F01D25/24

CPC classification number: F01D9/041 ,  F01D9/042 ,  F01D25/24 ,  F05D2230/23 ,  F05D2240/121 ,  F05D2240/122 ,  F05D2240/14 ,  F05D2260/36

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to implement an integrated stator-fan frame assembly. An integrated fan exit stator-fan frame strut assembly for a gas turbine engine includes a fan exit stator portion having an airfoil including a leading edge and a trailing edge, and a fan frame strut portion including a leading edge and a trailing edge, the leading edge of the fan frame strut portion aerodynamically integrated with the trailing edge of the fan exit stator portion.

公开(公告)号：US20230203957A1

公开(公告)日：2023-06-29

申请号：US17561422

申请日：2021-12-23

Applicant: General Electric Company

Inventor： Kishore Ramakrishnan ,  Li Zheng ,  Nicholas J. Kray ,  Trevor H. Wood ,  Bugra H. Ertas

IPC: F01D9/04 ,  F01D25/24

CPC classification number: F01D9/041 ,  F01D25/24 ,  F01D9/042 ,  F05D2230/23 ,  F05D2240/121 ,  F05D2240/122 ,  F05D2260/36 ,  F05D2240/14

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to implement an integrated stator-fan frame assembly. An integrated fan exit stator-fan frame strut assembly for a gas turbine engine includes a fan exit stator portion having an airfoil including a leading edge and a trailing edge, and a fan frame strut portion including a leading edge and a trailing edge, the leading edge of the fan frame strut portion aerodynamically integrated with the trailing edge of the fan exit stator portion.

公开(公告)号：US11668236B2

公开(公告)日：2023-06-06

申请号：US16938150

申请日：2020-07-24

Applicant: General Electric Company

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

IPC: F02C7/045 ,  F02K1/82 ,  B32B3/12 ,  G10K11/172

CPC classification number: F02C7/045 ,  B32B3/12 ,  F02K1/827 ,  G10K11/172 ,  F05D2250/282

Abstract: An acoustic core includes an array of resonant cells. The array may include a plurality of coupled resonant cells respectively defining an antecedent resonant space and a subsequent resonant space, with at least one cell wall having one or more wall-apertures defining a pathway between the antecedent resonant space and the subsequent resonant space. The array may include a plurality of high-frequency resonant cells respectively defining a high-frequency resonant space and being matched with respective ones of the plurality of coupled resonant cells. A cross-sectional dimension of the one or more wall-apertures defining the pathway between the antecedent resonant space and the subsequent resonant space may be less than a cross-sectional dimension of the antecedent resonant space and/or a cross-sectional dimension of the subsequent resonant space. The array may include a plurality of partitioned resonant cells that have a partition integrally formed with at least one of a corresponding one or more cell walls and transecting the corresponding resonant space with at least one surface of the partition having an interface angle that is oblique or perpendicular relative to a plane parallel to a top face and/or a bottom face of the array of resonant cells.