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81. 发明授权

US3657881A Gas turbine control with prewhirl of air entering the compressor 失效
标题翻译：具有进口压缩机空气的燃气涡轮机控制
公开(公告)号：US3657881A
公开(公告)日：1972-04-25
申请号：US3657881D
申请日：1969-09-02
申请人： GEN MOTORS CORP
发明人： AMANN CHARLES A , RUCINS ERIK H
IPC分类号： F02C9/20 , F02C9/54 , F02C9/56 , F02C9/14
CPC分类号： F02C9/54 , F02C9/20 , F02C9/56 , Y10T477/40
摘要： A vehicle turbine of the gas-coupled type propels the vehicle through a change-speed transmission. To reduce vehicle acceleration time with an acceptable penalty with respect to fuel consumption, the compressor of the engine has variable inlet guide vanes which are shifted into a positive prewhirl angle at idling speeds when the transmission is shifted into a drive condition. Thus the engine gas generator has a low speed idle, with axially oriented guide vanes and normal air entrance, when the transmission is in neutral, and a high speed idle with positive prewhirl when the transmission is in drive condition. Also, the vanes are shifted at full speed of the gas generator to provide negative prewhirl and thus reduce the engine speed corresponding to maximum power output. Because of the higher idle and lower maximum speeds, the acceleration time of the gas generator, and thus of the power turbine, is reduced. Because positive prewhirl reduces compressor pressure ratio at the high speed idle, the power turbine does not have an undue tendency to cause creep of the vehicle in the high speed idle.
摘要翻译：气体联接式的车辆涡轮通过变速传动推动车辆。为了以相对于燃料消耗的可接受的惩罚来减少车辆加速时间，发动机的压缩机具有可变的入口导向叶片，当变速器转换到驱动条件时，它们以空转速度偏移到正的预旋转角度。因此，发动机气体发生器具有低速怠速，当变速器处于空档状态时，具有轴向定向的导向叶片和正常空气入口，以及当变速器处于驱动状态时具有正向预热的高速怠速。此外，叶片以气体发生器的全速移动以提供负的前翅，并因此降低对应于最大功率输出的发动机转速。由于较高的怠速和较低的最大速度，所以气体发生器和动力涡轮机的加速时间减小。因为正偏压在高速怠速时降低了压缩机压力比，所以动力涡轮机不会在高速怠速时引起车辆蠕变的不适当倾向。

82. 发明公开

US20230265751A1 SYSTEMS AND METHODS TO OPERATE A DUAL-SHAFT GAS TURBINE ENGINE FOR HYDRAULIC FRACTURING 审中-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
申请人： BJ Energy Solutions, LLC
发明人： Tony Yeung , Ricardo Rodriguez-Ramon , Diankui Fu , Warren Zemlak , Caleb Barclay
IPC分类号： E21B43/26 , F02C9/20 , F02C7/32 , F04B17/05 , F04B49/10 , F04B49/20 , F02C7/36 , F02C3/10 , F02C7/268 , F04B49/08
CPC分类号： E21B43/2607 , F02C9/20 , F02C7/32 , F04B17/05 , F04B49/103 , F04B49/20 , F02C7/36 , F02C3/10 , F02C7/268 , F04B49/08 , F05D2270/052 , F05D2270/02
摘要： 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.

83. 发明授权

US11732565B2 Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing 有权
$Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing$
公开(公告)号：US11732565B2
公开(公告)日：2023-08-22
申请号：US18064699
申请日：2022-12-12
申请人： BJ Energy Solutions, LLC
发明人： Tony Yeung , Ricardo Rodriguez-Ramon , Diankui Fu , Warren Zemlak , Caleb Barclay
IPC分类号： E21B43/26 , F02C9/20 , F02C7/32 , F04B17/05 , F04B49/10 , F04B49/20 , F02C7/36 , F02C3/10 , F02C7/268 , F04B49/08
CPC分类号： E21B43/2607 , F02C3/10 , F02C7/268 , F02C7/32 , F02C7/36 , F02C9/20 , F04B17/05 , F04B49/08 , F04B49/103 , F04B49/20 , F05D2270/02 , F05D2270/052
摘要： 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.

84. 发明授权

US11731773B2 Engine mount system for a gas turbine engine 有权
公开(公告)号：US11731773B2
公开(公告)日：2023-08-22
申请号：US17395553
申请日：2021-08-06
申请人： RAYTHEON TECHNOLOGIES CORPORATION
发明人： Gabriel L. Suciu , Brian D. Merry , Christopher M. Dye , Steven B. Johnson , Frederick M. Schwarz
IPC分类号： 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分类号： 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
摘要： 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.

85. 发明授权

US11661895B2 Autonomous safety mode for distributed control of turbomachines 有权
公开(公告)号：US11661895B2
公开(公告)日：2023-05-30
申请号：US16798961
申请日：2020-02-24
申请人： General Electric Company
发明人： Jessie Thorup
IPC分类号： F02C9/18 , B64D27/10 , B64D31/06 , F02C9/26 , F02C9/20 , G05D1/00
CPC分类号： F02C9/18 , B64D27/10 , B64D31/06 , F02C9/20 , F02C9/26 , G05D1/0077 , F05D2270/304 , F05D2270/44
摘要： 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.

86. 发明授权

US11572774B2 Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing 有权
$Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing$
公开(公告)号：US11572774B2
公开(公告)日：2023-02-07
申请号：US17396914
申请日：2021-08-09
申请人： BJ Energy Solutions, LLC
发明人： Tony Yeung , Ricardo Rodriguez-Ramon , Diankui Fu , Warren Zemlak , Caleb Barclay
IPC分类号： E21B43/26 , F02C9/20 , F02C7/32 , F04B17/05 , F04B49/10 , F04B49/20 , F02C7/36 , F02C3/10 , F02C7/268 , F04B49/08
摘要： 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.

87. 发明授权

US11554874B2 Method and system for governing an engine at low power 有权
公开(公告)号：US11554874B2
公开(公告)日：2023-01-17
申请号：US17061657
申请日：2020-10-02
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Martin Drolet , Frederic Fortin
IPC分类号： B64D31/00 , B64D27/10 , F02C9/20 , F02C6/02 , B64D35/08 , F02C9/16 , F02C6/18
摘要： There are described methods and systems for operating an aircraft having two or more engines. One method comprises operating the two or more engines of the aircraft in an asymmetric operating regime, wherein a first of the engines is in an active mode to provide motive power to the aircraft and a second of the engines is in a standby mode to provide substantially no motive power to the aircraft; governing the first engine in the active mode using a first governing logic; and governing the second engine in the standby mode using a second governing logic, the second governing logic based on a target compressor speed and variable geometry mechanism (VGM) settings that are adjusted using trim values dependent on at least one parameter of the second engine in the standby mode.

88. 发明授权

US11506067B2 Gas turbine engine with clutch assembly 有权
公开(公告)号：US11506067B2
公开(公告)日：2022-11-22
申请号：US16904035
申请日：2020-06-17
申请人： General Electric Company
发明人： Brian Lewis Devendorf
IPC分类号： F01D7/00 , F02C7/36 , F02C7/32 , F01D15/12 , F01D15/10 , F02C9/00 , F02C9/22 , F02K1/76 , F01D5/18 , F01D5/30 , F02C7/264 , F01D9/04 , F01D17/16 , B64D27/12 , F01D25/12 , B32B7/022 , B64C1/12 , B64D7/00 , B64C1/38 , F01D5/14 , F02K1/66 , F02C9/48 , F02C9/20 , B64D45/00 , F02C6/20 , B64C1/00 , F02C3/113
摘要： A gas turbine engine is provided. The gas turbine engine includes a turbomachine having a low speed spool and a high speed spool; a rotor assembly coupled to the low speed spool; an electric machine rotatable with the low speed spool for extracting power from the low speed spool, for adding power to the low speed spool, or both; and an inter-spool clutch positioned between the low speed spool and the high speed spool for selectively coupling the low speed spool to the high speed spool.

89. 发明授权

US11466627B2 Systems and methods for controlling a power plant 有权
公开(公告)号：US11466627B2
公开(公告)日：2022-10-11
申请号：US16917385
申请日：2020-06-30
申请人： 8 Rivers Capital, LLC
发明人： Jeremy Eron Fetvedt
IPC分类号： F02C9/26 , F02C3/34 , F02C9/32 , F02C9/54 , F02C7/057 , F02C9/20 , F02C9/34 , F02C9/16
摘要： The present disclosure relates to systems and methods that are useful in control of one or more aspects of a power production plant. More particularly, the disclosure relates to power production plants, methods of starting power production plants, and methods of generating power with a power production plant wherein one or more control paths are utilized for automated control of at least one action. The present disclosure more particularly relates to power production plants, control systems for power production plants, and methods for startup of a power production plant.

90. 发明授权

US11448088B2 Temperature inversion detection and mitigation strategies to avoid compressor surge 有权
公开(公告)号：US11448088B2
公开(公告)日：2022-09-20
申请号：US16841882
申请日：2020-04-07
申请人： HONEYWELL INTERNATIONAL INC.
发明人： Ronnie Haugland , Gregory J. Chapman , Mohamad Hanif Vhora , Jeffrey J. Aitchison
IPC分类号： F01D21/00 , F02C9/16 , G01K13/02 , F02C9/20
摘要： A system and method for controlling compressor inlet guide vanes of a gas turbine engine in an aircraft includes supplying, to a compressor inlet guide vane control algorithm, an inlet temperature value that is at least representative of sensed engine inlet total temperature. One or more gas turbine engine parameters are sensed with one or more sensors during operation of the gas turbine engine. The one or more gas turbine engine parameters are processed in the engine control unit to determine an inlet temperature modifier value that is an estimate of a difference between the sensed engine inlet total temperature and actual engine inlet total temperature. The inlet temperature modifier value is added to the inlet temperature value to derive a modified engine inlet total temperature. The modified engine inlet total temperature is used in the compressor inlet guide vane control algorithm, which controls the compressor inlet guide vanes.

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