公开(公告)号：US20240209778A1

公开(公告)日：2024-06-27

申请号：US18167723

申请日：2023-02-10

Applicant: General Electric Company

Inventor： Mohan Kannaiah Raju ,  Kudum Shinde ,  Ravindra Shankar Ganiger ,  Narendra Hardikar ,  Michael Joseph Murray

IPC: F02C7/06 ,  F01D25/20 ,  F02C9/00

CPC classification number: F02C7/06 ,  F01D25/20 ,  F02C9/00 ,  F05D2220/323 ,  F05D2260/205

Abstract: Methods, systems, and apparatus are disclosed to provide a pressurized fluid to components of a fluid pump. An example flow control system to provide a pressurized lubricant to a secondary flow network disposed within a fluid pump includes sensors to measure parameters of a fluid corresponding to fluid flow; a recirculation loop fluidly coupled to a secondary inlet of the pump, the recirculation loop to provide a first flowpath, wherein the secondary inlet is an inlet to the secondary flow network; a bypass circuit fluidly coupled to the secondary inlet to provide a second flowpath; and a controller to direct the fluid flow to the first flowpath or the second flowpath based on sensor data from the sensor, the sensor data indicative of a state of the fluid.

公开(公告)号：US12012859B2

公开(公告)日：2024-06-18

申请号：US17894881

申请日：2022-08-24

Applicant: General Electric Company

Inventor： Raghuveer Chinta ,  Abhijit Roy ,  Vaishnav Raghuvaran ,  Srinivas Nuthi ,  Ravindra Shankar Ganiger

IPC: F01D11/22

CPC classification number: F01D11/22 ,  F05D2220/32 ,  F05D2240/55

Abstract: Disclosed herein are example variable flowpath casings for blade tip clearance control. An example casing for a turbine engine includes a first annular substrate extending along an axial direction; a second annular substrate positioned radially inward relative to the first annular substrate, the second annular substrate movably coupled to the first annular substrate; and an actuator coupled to the second annular substrate such that a force applied by the actuator moves the second annular substrate relative to the first annular substrate to adjust a tip clearance.

公开(公告)号：US11994291B2

公开(公告)日：2024-05-28

申请号：US18060808

申请日：2022-12-01

Applicant: General Electric Company

Inventor： Hiranya Nath ,  Ravindra Shankar Ganiger ,  Ajoy Patra ,  Rajendra Wankhade

IPC: F23R3/00 ,  F23R3/16 ,  F23R3/46

CPC classification number: F23R3/002 ,  F23R3/16 ,  F23R3/46 ,  F05D2220/32 ,  F05D2240/35

Abstract: An annular combustor includes a combustion liner defining a combustion chamber, the combustion liner having an outer liner and an inner liner and a plurality of dimples in the combustion liner. The combustion liner is characterized by a performance factor greater than or equal to one and less than or equal to seven. An engine includes the annular combustor.

公开(公告)号：US11988096B2

公开(公告)日：2024-05-21

申请号：US17841847

申请日：2022-06-16

Applicant: General Electric Company ,  General Electric Deutschland Holding GmbH

Inventor： Ravindra Shankar Ganiger ,  Neelesh Nandkumar Sarawate ,  Rahul Anil Bidkar ,  Narendra Anand Hardikar ,  Kevin Randall McManus ,  Steven Douglas Johnson ,  Prateek Jalan ,  Antonio Guijarro Valencia ,  Julius John Montgomery ,  Rodrigo Rodriguez Erdmenger ,  Jose Maria Rey Villazon

IPC: F01D11/00 ,  F01D11/02

CPC classification number: F01D11/003 ,  F01D11/001 ,  F01D11/02 ,  F05D2220/323 ,  F05D2240/56

Abstract: A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.

公开(公告)号：US20240141800A1

公开(公告)日：2024-05-02

申请号：US18148530

申请日：2022-12-30

Applicant: General Electric Company

Inventor： Vishnu Das K ,  Vinaykumar Shrimantrao Patil ,  Manish Singhal ,  Ravindra Shankar Ganiger

IPC: F01D15/10 ,  F01D11/24 ,  H10N10/01 ,  H10N10/17

CPC classification number: F01D15/10 ,  F01D11/24 ,  H10N10/01 ,  H10N10/17 ,  B33Y80/00

Abstract: A thermoelectric generator for a turbine engine is provided. The turbine engine can include a core having a casing surrounded by an engine cowl. The thermoelectric generator is attached to or formed integrally with the casing. The thermoelectric generator includes a power generation module formed by a plurality of thermocouples that utilize a temperature differential between a hot side and a cold side of the casing to generate electrical power. In one aspect, an electrically insulative layer is positioned between the casing and the power generation module. In another aspect, the thermoelectric generator includes a phase change material pack that includes an inner layer and an outer layer, the power generation module being positioned between the inner layer and the outer layer. In other aspects, the thermoelectric generator can be additively manufactured on the casing or another structural component of the turbine engine.

公开(公告)号：US20240133347A1

公开(公告)日：2024-04-25

申请号：US18400762

申请日：2023-12-29

Applicant: General Electric Company ,  GE Avio S.r.I.

Inventor： Ravindra Shankar Ganiger ,  Andrea Piazza ,  Gontla Nagashiresha ,  Bugra H. Ertas ,  Sanjeev Jha

IPC: F02C7/36 ,  F01D15/10 ,  F02K3/06

CPC classification number: F02C7/36 ,  F01D15/10 ,  F02K3/06 ,  F05D2220/768 ,  F05D2260/40311

Abstract: A differential gearbox assembly for a turbine engine having a fan shaft and a drive shaft. The differential gearbox assembly includes an epicyclic gear assembly coupling the fan shaft to the drive shaft. The epicyclic gear assembly includes a sun gear, a planet gear constrained by a planet carrier, and a ring gear. The sun gear is coupled to the drive shaft and the planet carrier is coupled to the fan shaft. The sun gear, the planet gear, and the ring gear all rotate about the drive shaft. The differential gearbox assembly includes an electric machine assembly that includes an input coupled to the epicyclic gear assembly. The electric machine assembly provides mechanical power to the fan shaft through the epicyclic gear assembly.

公开(公告)号：US11959643B2

公开(公告)日：2024-04-16

申请号：US17340856

申请日：2021-06-07

Applicant: General Electric Company

Inventor： Karthikeyan Sampath ,  Pradeep Naik ,  Veeraraju Vanapalli ,  Perumallu Vukanti ,  Shai Birmaher ,  Daniel J. Kirtley ,  Deepak Ghiya ,  Rimple Rakeshkumar Rangrej ,  Saket Singh ,  Ravindra Shankar Ganiger ,  Hiranya Kumar Nath ,  Michael Anthony Benjamin ,  Rajendra Mahadeorao Wankhade

IPC: F23R3/60 ,  F23R3/06 ,  B33Y80/00

CPC classification number: F23R3/60 ,  F23R3/06 ,  B33Y80/00 ,  F23R2900/00012 ,  F23R2900/00017 ,  F23R2900/00018

Abstract: A combustor for a gas turbine engine, the gas turbine engine defining a longitudinal centerline extending in a longitudinal direction, a radial direction extending orthogonally outward from the longitudinal centerline, and a circumferential direction extending concentrically around the longitudinal centerline, the combustor including: a forward liner segment; an aft liner segment disposed downstream from the forward liner segment relative to a direction of flow through the combustor, the forward and aft liner segments at least partially defining a combustion chamber; and an intermediate member disposed at least partially between the forward and aft liner segments and extending in the circumferential direction.

公开(公告)号：US20240102653A1

公开(公告)日：2024-03-28

申请号：US18529428

申请日：2023-12-05

Applicant: General Electric Company

Inventor： Saket Singh ,  Ravindra Shankar Ganiger ,  Hiranya Nath ,  Perumallu Vukanti ,  Ajoy Patra ,  Karthikeyan Sampath ,  Pradeep Naik ,  Rimple Rangrej ,  Veera Venkata Amarnath Manem

IPC: F23R3/00 ,  F23R3/60

CPC classification number: F23R3/002 ,  F23R3/60 ,  F23R2900/00017 ,  F23R2900/03043

Abstract: A dome-deflector assembly for a gas turbine includes a dome, a deflector, and at least one dome-deflector connecting assembly that includes a connecting member connecting the dome and the deflector together with a cavity being defined between the dome and the deflector. The connecting member extends through the deflector and has a first end arranged at a hot surface side of the deflector and a second end arranged to connect with the dome. The dome-deflector connecting assembly is configured to provide a flow of cooling air from the cavity to the hot surface side of the deflector to cool the first end of the connecting member on the hot surface side of the deflector.

公开(公告)号：US20240093617A1

公开(公告)日：2024-03-21

申请号：US18066707

申请日：2022-12-15

Applicant: General Electric Company

Inventor： Adam Joseph Wangler ,  David Raju Yamarthi ,  Ravindra Shankar Ganiger ,  Santosh Kumar Pattnaik

IPC: F01D25/16 ,  F01D3/04 ,  F01D15/08

CPC classification number: F01D25/168 ,  F01D3/04 ,  F01D15/08

Abstract: Apparatus, systems, and articles of manufacture are disclosed to dynamically support axial thrust in pumps. Examples disclosed herein include a thrust bearing system including a thrust disc coupled to an impeller shaft; a first thrust pad coupled to a body of the pump, the first thrust pad positioned on a forward side of the thrust disc; a second thrust pad coupled to the body of the pump, the second thrust pad positioned on an aft side of the thrust disc; and a spring-loaded assembly integrated into the first and second thrust pads, the spring-loaded assembly connected to a pump outlet via a first flowline, the first flowline to transmit a working fluid from the pump outlet to the forward side of the thrust disc or the aft side of the thrust disc based on a position of the spring-loaded assembly.

公开(公告)号：US20240084737A1

公开(公告)日：2024-03-14

申请号：US18510848

申请日：2023-11-16

Applicant: General Electric Company

Inventor： Ravindra Shankar Ganiger ,  Kudum Shinde ,  Surender Reddy Bhavanam ,  Weize Kang

IPC: F02C7/32 ,  F01D5/02 ,  F01D25/34

CPC classification number: F02C7/32 ,  F01D5/02 ,  F01D25/34 ,  F05D2220/32 ,  F05D2240/20 ,  F05D2260/941

Abstract: A gas turbine engine includes a compressor rotor shaft assembly, an accessory gearbox, and a bowed-rotor mitigation drive device drivingly coupled with the accessory gearbox. The bowed-rotor mitigation drive device is driven during an engine startup phase so as to induce a mechanical load (mechanical energy) to the bowed-rotor mitigation drive device. The mechanical load (mechanical energy) is retained within the bowed-rotor mitigation drive device during operation of the gas turbine engine. The mechanical load (mechanical energy) retained within the bowed-rotor mitigation drive device is periodically released by the bowed-rotor mitigation drive device in a plurality of periods so as to provide, in each period, a driving force to the accessory gearbox, which provides the driving force to the compressor rotor shaft assembly to periodically rotate the compressor rotor shaft assembly.