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公开(公告)号：US11952950B2
公开(公告)日：2024-04-09
申请号：US17628608
申请日：2020-07-23
Applicant: SAFRAN AIRCRAFT ENGINES SAS
CPC classification number: F02C9/20 , F01D17/162 , F02C6/08 , F02C9/18 , F04D27/023 , F04D29/563
Abstract: An axial turbomachine comprising a compression device with a variable-orientation vane rectifier stage; a combustion chamber downstream of the compression device; a turbine device downstream of the combustion chamber; and a leak passage of air compressed by the compression device, between the compression device and the turbine device for cooling the turbine device; and where the rectifier stage is configured to modulate the section of the leak passage according to the orientation of the vanes of the stage.
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公开(公告)号：US11952943B2
公开(公告)日：2024-04-09
申请号：US18213823
申请日：2023-06-24
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Karan Anand , Hong Yu
CPC classification number: F02C7/042 , F01D17/141 , F02C3/04 , F02C9/20 , F02C9/54
Abstract: Assemblies and methods for directing a flow of air through a compressor section of a gas turbine engine are disclosed. A method includes receiving the flow of air over a strut extending radially across a substantially annular gas path of the gas turbine engine, and at least partially confining and modifying a strut wake generated in the flow of air by the strut using one or more variable orientation guide vanes.
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3.发明公开
公开(公告)号：US20230265751A1
公开(公告)日：2023-08-24
申请号：US18138319
申请日：2023-04-24
Applicant: BJ Energy Solutions, LLC
Inventor： Tony Yeung , Ricardo Rodriguez-Ramon , Diankui Fu , Warren Zemlak , Caleb Barclay
IPC: E21B43/26 , F02C9/20 , F02C7/32 , F04B17/05 , F04B49/10 , F04B49/20 , F02C7/36 , F02C3/10 , F02C7/268 , F04B49/08
CPC classification number: E21B43/2607 , F02C9/20 , F02C7/32 , F04B17/05 , F04B49/103 , F04B49/20 , F02C7/36 , F02C3/10 , F02C7/268 , F04B49/08 , F05D2270/052 , F05D2270/02
Abstract: Systems and methods to pump fracturing fluid into a wellhead may include a gas turbine engine including a compressor turbine shaft connected to a compressor, and a power turbine output shaft connected to a power turbine. The compressor turbine shaft and the power turbine output shaft may be rotatable at different rotational speeds. The systems may also include a transmission including a transmission input shaft connected to the power turbine output shaft and a transmission output shaft connected to a hydraulic fracturing pump. The systems may also include a fracturing unit controller configured to control one or more of the rotational speeds of the compressor turbine shaft, the power turbine output shaft, or the transmission output shaft based at least in part on target signals and fluid flow signals indicative of one or more of pressure or flow rate associated with fracturing fluid pumped into the wellhead.
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公开(公告)号：US11732565B2
公开(公告)日：2023-08-22
申请号：US18064699
申请日：2022-12-12
Applicant: BJ Energy Solutions, LLC
Inventor： Tony Yeung , Ricardo Rodriguez-Ramon , Diankui Fu , Warren Zemlak , Caleb Barclay
IPC: E21B43/26 , F02C9/20 , F02C7/32 , F04B17/05 , F04B49/10 , F04B49/20 , F02C7/36 , F02C3/10 , F02C7/268 , F04B49/08
CPC classification number: E21B43/2607 , F02C3/10 , F02C7/268 , F02C7/32 , F02C7/36 , F02C9/20 , F04B17/05 , F04B49/08 , F04B49/103 , F04B49/20 , F05D2270/02 , F05D2270/052
Abstract: Systems and methods to pump fracturing fluid into a wellhead may include a gas turbine engine including a compressor turbine shaft connected to a compressor, and a power turbine output shaft connected to a power turbine. The compressor turbine shaft and the power turbine output shaft may be rotatable at different rotational speeds. The systems may also include a transmission including a transmission input shaft connected to the power turbine output shaft and a transmission output shaft connected to a hydraulic fracturing pump. The systems may also include a fracturing unit controller configured to control one or more of the rotational speeds of the compressor turbine shaft, the power turbine output shaft, or the transmission output shaft based at least in part on target signals and fluid flow signals indicative of one or more of pressure or flow rate associated with fracturing fluid pumped into the wellhead.
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公开(公告)号：US11731773B2
公开(公告)日：2023-08-22
申请号：US17395553
申请日：2021-08-06
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor： Gabriel L. Suciu , Brian D. Merry , Christopher M. Dye , Steven B. Johnson , Frederick M. Schwarz
IPC: B64D27/26 , F01D25/28 , F02C7/20 , F02K3/06 , F02C9/20 , F02C9/18 , F02C7/36 , F02C3/107 , F01D5/06 , F01D9/02 , F01D15/12 , F01D25/24 , F02K1/15
CPC classification number: B64D27/26 , F01D5/06 , F01D9/02 , F01D15/12 , F01D25/24 , F01D25/28 , F02C3/107 , F02C7/20 , F02C7/36 , F02C9/18 , F02C9/20 , F02K1/15 , F02K3/06 , B64D2027/266 , B64D2027/268 , F05D2220/32 , F05D2220/36 , F05D2260/4031 , F05D2260/40311 , F05D2270/42
Abstract: A gas turbine engine includes, among other things, a propulsor section including a rotor, a gear train, a low spool and a high spool. A static structure includes a first case and a second case. A mount system includes a forward mount and an aft mount arranged in a plane containing an engine axis of rotation. The forward mount is secured to the first case. The aft mount is secured to the second case.
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公开(公告)号：US11661895B2
公开(公告)日：2023-05-30
申请号：US16798961
申请日：2020-02-24
Applicant: General Electric Company
Inventor： Jessie Thorup
CPC classification number: F02C9/18 , B64D27/10 , B64D31/06 , F02C9/20 , F02C9/26 , G05D1/0077 , F05D2270/304 , F05D2270/44
Abstract: A distributed control system for a turbomachine and method of operating the distributed control system are provided. In one aspect, a distributed control system includes a central controller and a distributed controller communicatively coupled thereto. The distributed controller has one or more associated local actuators and one or more associated local sensors. The actuators and the sensors are communicatively coupled with the distributed controller. If a communication link between the central controller and the distributed controller becomes faulty, the distributed controller enters an autonomous safety mode. In this mode, the distributed controller uses a combination of its own associated local sensors and past commands received from the central controller to autonomously govern its associated local actuators to maintain safe operation of the turbomachine.
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公开(公告)号：US20190112940A1
公开(公告)日：2019-04-18
申请号：US15786367
申请日：2017-10-17
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： William S. Pratt , Anand Nagaraj , Diane C. Kjelby
CPC classification number: F01D17/162 , F01D9/041 , F01D17/165 , F02C9/20 , F05D2220/32 , F05D2230/60 , F05D2240/12 , F05D2260/79
Abstract: A vane arm may comprise a first end having a first surface and a second surface opposite the first surface. A vane stem aperture may be formed through the first end of the vane arm. The first surface may define a first perimeter of the vane stem aperture. The second surface may defines a second perimeter of the vane stem aperture. The second perimeter may comprise a circular or elliptical shape. A first wedge face and second wedge face may define a portion of the vane stem aperture.
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公开(公告)号：US20180306124A1
公开(公告)日：2018-10-25
申请号：US15953408
申请日：2018-04-14
Inventor： Byung Hee Choi
CPC classification number: F02C9/28 , F02C3/04 , F02C9/20 , F05D2270/08 , F05D2270/112 , F05D2270/304 , F05D2270/3061 , F05D2270/313 , F05D2270/54
Abstract: A gas turbine system can estimate an amount of compressed air supplied to a combustor and limit a fuel amount according to the estimated compressed air amount. A control apparatus of the system includes a sensing unit to measure the turbine rotor speed; a compressed air amount estimation unit to estimate a change rate MR of an amount of compressed air produced by the compressor and supplied to the combustor, based on the measured turbine rotor speed; and a fuel amount control unit to control a fuel amount FC supplied to the combustor, based on the estimated change rate MR. The control apparatus can preemptively control the fuel amount in response to variations in the compressed air amount by a momentarily changing turbine rotor speed and can limit the turbine inlet temperature to below the maximum allowable temperature, to protect the turbine and/or combustor against fluctuations in compressed air amount.
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公开(公告)号：US20180306122A1
公开(公告)日：2018-10-25
申请号：US15939277
申请日：2018-03-29
Inventor： Byung Hee Choi , Seong Jin Hong
CPC classification number: F02C9/18 , F02C3/06 , F02C9/20 , F05D2220/32 , F05D2270/08 , F05D2270/303 , F05D2270/3032 , F05D2270/304
Abstract: In a gas turbine system which includes a compressor for sucking and compressing air and an air supplying means for supplying the compressed air from the compressor to a combustor and a turbine and which drives a power generator through rotation of the turbine, a control apparatus includes a sensing unit and a compressed air control unit. The sensing unit measures a turbine inlet temperature indicating a temperature of combustion gas introduced into the turbine and measures an exhaust gas temperature indicating a temperature of exhaust gas discharged from the turbine. The compressed air control unit control the air supplying means to adjust the amount of compressed air supplied to the turbine, based on the measured turbine inlet temperature and the measured exhaust gas temperature. The control apparatus allows the combustor to completely combust fuel even in a low load state, thereby reducing the amount of harmful exhaust gas discharged to the atmosphere.
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公开(公告)号：US20180187568A1
公开(公告)日：2018-07-05
申请号：US15908756
申请日：2018-02-28
Applicant: Rolls-Royce North America, Inc.
Inventor： Michael P. Dougherty
CPC classification number: F01D17/162 , F01D9/041 , F02C9/20 , F04D27/0246 , F04D29/563 , F05D2240/12 , F05D2260/407 , F05D2260/57 , F05D2270/44 , F05D2270/62 , F05D2270/66 , F05D2270/808 , F05D2300/505
Abstract: An improved system, apparatus and method for controlling vane angles in a gas turbine engine, and more specifically, for correcting vane angle error in a gas turbine engine. An active synchronization ring comprises a plurality of micro-actuators coupled to the synchronization ring to correct distortion in the synchronization ring. The micro-actuators apply a bending moment to the synchronization ring to cancel or compensate for synchronization ring distortion. The micro-actuators may be controlled open loop or closed loop. Strain sensors measure ring distortion and provide signals to the controller for closed loop control.
