公开(公告)号：US20180320706A1

公开(公告)日：2018-11-08

申请号：US15586662

申请日：2017-05-04

Applicant: General Electric Company

Inventor： Nitesh Jain ,  Sujana Chandrasekar ,  Ramkrishna Maripalli ,  Nicholas Joseph Kray ,  Wendy Wenling Lin

IPC: F04D29/38 ,  B32B5/02 ,  B32B37/14 ,  F02C3/04 ,  F04D29/32

CPC classification number: F04D29/388 ,  B32B5/02 ,  B32B37/14 ,  B32B2262/103 ,  B32B2262/106 ,  B32B2305/076 ,  B32B2605/18 ,  F02C3/04 ,  F04D29/325 ,  F05D2220/32 ,  F05D2300/171 ,  F05D2300/174 ,  F05D2300/177 ,  F05D2300/6032

Abstract: A laminated composite airfoil assembly includes a first lamina formed of a pre-preg material including metal fibers, and at least a second lamina formed of a pre-preg material including at least one of metal fibers intermixed with carbon fibers, only metal fibers, only carbon fibers, a substrate including metal fibers, a substrate including carbon fibers, and combinations thereof.

公开(公告)号：US20180298780A1

公开(公告)日：2018-10-18

申请号：US15486789

申请日：2017-04-13

Applicant: General Electric Company

Inventor： Nicholas Joseph Kray ,  Thomas Chadwick Waldman ,  Manoj Kumar Jain ,  Mojibur Rahman ,  Nitesh Jain ,  Nagamohan Govinahalli Prabhakar ,  Scott Roger Finn ,  Apostolos Pavlos Karafillis

IPC: F01D21/04 ,  F01D25/24 ,  F04D29/52

CPC classification number: F01D21/045 ,  F01D25/24 ,  F04D29/526 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2240/14 ,  F05D2250/292 ,  F05D2300/603

Abstract: A backsheet for use in a turbine engine fan case includes a first portion including a first portion first end and an opposing first portion second end. The first portion is tapered between the first portion first end and the first portion second end. The backsheet also includes a second portion coupled to the first portion. The second portion includes a second portion first end and an opposing second portion second end. The second portion defines a constant thickness between the second portion first end and the second portion second end.

公开(公告)号：US12253005B2

公开(公告)日：2025-03-18

申请号：US18046657

申请日：2022-10-14

Applicant: General Electric Company

Inventor： Abhijeet Yadav ,  Nicholas J. Kray ,  Nitesh Jain

IPC: F01D5/16

Abstract: An airfoil structure including an airfoil and a spring and damper system. The airfoil including a longitudinal axis. The spring and damper system is connected to the airfoil to rotate the airfoil about the longitudinal axis to change airfoil pitch in response to a load applied to the airfoil.

公开(公告)号：US12173616B2

公开(公告)日：2024-12-24

申请号：US18154556

申请日：2023-01-13

Applicant: General Electric Company

Inventor： Abhijeet Yadav ,  Kishore Budumuru ,  Nitesh Jain

IPC: F01D5/14 ,  F01D5/28 ,  F02C7/20

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for passive fan blade tip clearance control. A fan blade for a gas turbine engine, the fan blade comprising a fan blade body including a tip region at a blade tip of the fan blade body and a blade tip insert disposed within the tip region of the fan blade body, the blade tip insert is formed from a material that passively adjusts a shape of the blade tip insert to maintain a blade tip clearance between the blade tip and an engine casing or nacelle by at least one of expanding or contracting based on temperature.

公开(公告)号：US20240384665A1

公开(公告)日：2024-11-21

申请号：US18789153

申请日：2024-07-30

Applicant: General Electric Company

Inventor： Nitesh Jain ,  Nicholas J. Kray ,  Veeraraju V ,  Deepak Ghiya ,  Sreekanth Kumar Dorbala ,  Kishore Budumuru ,  Apostolos Karafillis ,  Thomas Chadwick Waldman ,  Theodore E. Anderson ,  Joel F. Kirk ,  Edward A. Rainous ,  Michael E. Eriksen ,  Mojibur Rahman

IPC: F01D21/04 ,  F01D25/24

Abstract: Light weight fan casing configurations for energy absorption are disclosed herein. A casing apparatus for an aircraft engine includes a containment casing including a ridge on an exterior surface of the containment casing, and a deflector plate including a first end and a second end, the first end coupled to the ridge, the second end uncoupled to the containment casing.

公开(公告)号：US20240376824A1

公开(公告)日：2024-11-14

申请号：US18314244

申请日：2023-05-09

Applicant: General Electric Company

Inventor： Balaraju Suresh ,  Guru Venkata Dattu Jonnalagadda ,  Trevor Howard Wood ,  Nicholas Joseph Kray ,  Vishnu Vardhan Venkata Tatiparthi ,  Nitesh Jain

IPC: F01D5/14

Abstract: An airfoil for a turbofan engine includes a first contoured sidewall, a second contoured sidewall, a leading edge, and a trailing edge with each extending in a spanwise direction defined between a root and a tip portion of the airfoil. The first contoured sidewall and the second contoured sidewall define an outer surface of the airfoil. The airfoil further includes a plurality of protrusions where each protrusion of the plurality of protrusions has a curvilinear shape and extends outwardly from the outer surface along at least one of the first contoured sidewall or the second contoured sidewall. The plurality of protrusions is defined downstream from a mid-point of a chord length of the airfoil and terminates upstream of the trailing edge.

公开(公告)号：US20240271539A1

公开(公告)日：2024-08-15

申请号：US18644467

申请日：2024-04-24

Applicant: General Electric Company

Inventor： Abhijeet Jayshingrao Yadav ,  Nicholas Joseph Kray ,  Nitesh Jain ,  Ricardo Hernandez Pandeli

IPC: F01D7/00

CPC classification number: F01D7/00

Abstract: A gas turbine engine including: a turbomachine having a compressor section, a combustion section, and a turbine section arranged in serial flow order; a fan defining a fan axis and comprising a plurality of fan blades rotatable about the fan axis; and a pitch change mechanism operable with the plurality of fan blades, the pitch change mechanism including a plurality of linkages, the plurality of linkages including a first linkage coupled to a first fan blade of the plurality of fan blades and a second linkage coupled to a second fan blade of the plurality of fan blades; and a non-uniform blade actuator system operable with one or more of the plurality of linkages to control a pitch of the first fan blade relative to a pitch of the second fan blade.

公开(公告)号：US20240218797A1

公开(公告)日：2024-07-04

申请号：US18317310

申请日：2023-05-15

Applicant: General Electric Company

Inventor： Balaraju Suresh ,  Guru Venkata Dattu Jonnalagadda ,  Sandeep Kumar ,  Nitesh Jain ,  Abhijeet Jayshingrao Yadav ,  Nicholas Joseph Kray

IPC: F01D5/28

CPC classification number: F01D5/28 ,  F05D2220/32 ,  F05D2230/31 ,  F05D2300/17

Abstract: Methods of manufacturing airfoil assemblies include forming an airfoil core comprising a foam to define an airfoil shape extending in a first direction and having a pressure side and a suction side extending in a second direction, the second direction being perpendicular to the first direction, between a leading edge and a trailing edge; and electroforming a metal alloy onto an exterior surface of the airfoil core to define an external airfoil shell.

公开(公告)号：US20240133301A1

公开(公告)日：2024-04-25

申请号：US17970687

申请日：2022-10-20

Applicant: General Electric Company

Inventor： Abhijeet Jayshingrao Yadav ,  Nicholas Joseph Kray ,  Nicholas M. Daggett ,  Nitesh Jain ,  Matthew Mark Weaver ,  Srinivas Addagatla

IPC: F01D7/00

CPC classification number: F01D7/00 ,  F05D2220/323 ,  F05D2240/30

Abstract: A gas turbine engine includes a turbomachine comprising a compressor section, a combustion section, and a turbine section arranged in serial flow order. A fan defining a fan axis and comprising a plurality of fan blades is rotatable about the fan axis. A pitch change mechanism is operable with the plurality of fan blades to control a pitch of the plurality of fan blades. A counterweight is connected to each respective fan blade. A spring mechanism is operably associated with each fan blade of the plurality of fan blades to create a spring twisting moment on the respective fan blade that is counter to a centrifugal twisting moment of the respective fan blade.

公开(公告)号：US11898464B2

公开(公告)日：2024-02-13

申请号：US17232822

申请日：2021-04-16

Applicant: General Electric Company

Inventor： Nicholas Joseph Kray ,  Nitesh Jain

IPC: F01D5/28 ,  F01D5/14

CPC classification number: F01D5/282 ,  F01D5/147 ,  F05D2220/36 ,  F05D2300/603

Abstract: In one exemplary embodiment of the present disclosure an airfoil is provided. The airfoil defines a spanwise direction, a root end, and a tip end. The airfoil includes: a body defining a pressure side and a suction side and extending along the spanwise direction between the root end and the tip end, the body formed of a composite material; and a spar enclosed in the body of the airfoil extending along the spanwise direction, the spar comprising a plurality of spar segments arranged in an overlapping configuration along the spanwise direction.