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1. 发明公开

EP4446568A1 BOWED ROTOR PREVENTION SYSTEM AND METHOD FOR A GAS TURBINE ENGINE 审中-公开
公开(公告)号：EP4446568A1
公开(公告)日：2024-10-16
申请号：EP24170101.0
申请日：2024-04-12
申请人： RTX Corporation
发明人： SCHAFER, Bradley C. , WINEBRENNER, Brian V. , SOLOMONIDES, Jason B. , MULDOON, Marc J. , VIRTUE, Jr., John P.
IPC分类号： F01D15/10 , F01D21/04 , F01D25/36 , F01D21/00
CPC分类号： F01D25/36 , F01D21/04 , F01D21/00 , F01D15/10 , F05D2220/7620130101 , F05D2260/8520130101 , F05D2270/30420130101
摘要： A bowed rotor prevention system (100) includes a gas turbine engine (20), an electric motor (102), and a core turning controller (150). The gas turbine engine (20) includes a rotor that is rotatably coupled to a drive shaft (50). The electric motor (102) is rotatably coupled to a motor shaft (108), which is mechanically coupled to the drive shaft (50) so as to rotate therewith. The core turning controller (150) is in signal communication with the electric motor (102). The core turning controller (150) determines whether a rotor bow is present in the rotor based on an operating time of the gas turbine engine (20), determines a motoring time based on the operating time, and invokes an anti-rotor bowing mode configured to control the electric motor (102) to rotate the rotor according to the motoring time.

2. 发明授权

EP2599969B1 Method of detecting shaft break and system 有权转让
公开(公告)号：EP2599969B1
公开(公告)日：2018-05-30
申请号：EP12191015.2
申请日：2012-11-02
申请人： Rolls-Royce plc
发明人： Bacic, Marko
IPC分类号： F01D21/04
CPC分类号： F01D21/04 , F01D17/04 , F01D17/06 , F01D17/08 , F01D17/085 , F01D21/003 , F01D21/045
摘要： The present invention provides a method of detecting shaft break in a shaft system comprising a shaft coupled between two masses. The method comprises a number of steps. Firstly, to define a time-dependent rotational speed equation for the shaft in terms of system inertia for an engine transient event. Then to discretize the rotational speed equation in terms of a discrete time constant in the discrete domain. Then to recursively define the discretized equation to give a recursive equation and to solve the recursive equation to determine the discrete time constant. Then to define a threshold as a function of engine power and then to set a shaft break signal to TRUE if the discrete time constant is greater than the threshold. A shaft break detection system is also provided by the present invention.

3. 发明公开

EP3263846A1 ROTOR BLADE DAMAGE DETECTION 审中-公开
标题翻译：转子叶片损伤检测
公开(公告)号：EP3263846A1
公开(公告)日：2018-01-03
申请号：EP17175498.9
申请日：2017-06-12
申请人： Rolls-Royce plc
发明人： Rowe, Arthur , Binnington, Mark , Woodward, Colin , Thornton, Paul
IPC分类号： F01D21/00 , G01H1/00 , F01D21/04
CPC分类号： F01D21/003 , F01D21/04 , F02C9/00 , F04D27/001 , F05D2220/32 , F05D2240/20 , F05D2260/83 , F05D2270/304 , G01H1/006 , G01P3/46
摘要： A rotor assembly (30) comprising a rotor (32) having an annular array of rotor blades (34), the rotor mounted to a shaft (38). A phonic wheel (40) coupled to the shaft. A speed sensor (44) axially aligned with the phonic wheel and configured to measure voltage (V), amplitude of the voltage being proportional to clearance (46) between the sensor and phonic wheel. A processor (48) configured to: receive the voltage measurement; derive shaft speed (ω) from the voltage measurement; identify modulation of the voltage amplitude at a frequency which is an integer multiple of the shaft speed; compare voltage amplitude to a threshold; and output a rotor damage signal based on the comparison.
摘要翻译：一种转子组件（30），包括具有转子叶片（34）的环形阵列的转子（32），转子安装在轴（38）上。发音轮（40）耦合到轴。速度传感器（44）与发音轮轴向对齐并被配置为测量电压（V），电压的幅度与传感器和发音轮之间的间隙（46）成比例。处理器（48），被配置为：接收电压测量结果; 从电压测量中导出轴速度（ω）; 识别电压振幅在轴转速整数倍频率下的调制; 将电压幅度与阈值进行比较; 并基于该比较输出转子损坏信号。

4. 发明授权

EP2588718B1 DETECTION DE SURVITESSE D'UNE TURBINE LIBRE PAR MESURE SUR COUPLEMETRE 有权转让
标题翻译：通过测量耦合器检测汽轮机超速
公开(公告)号：EP2588718B1
公开(公告)日：2017-11-22
申请号：EP11741633.9
申请日：2011-07-01
申请人： Safran Helicopter Engines
发明人： FREALLE, Jean-Luc, Charles, Gilbert , PERBOS, Alain, Michel
IPC分类号： F01D21/00 , F01D21/02 , F01D21/04 , F02C3/10 , B64C27/12 , G01L3/04
CPC分类号： F02C9/28 , B64C27/04 , B64D2045/0085 , F01D21/003 , F01D21/02 , F01D21/04 , F02C3/10 , F05D2220/329 , F05D2270/021 , F05D2270/052 , Y02T50/671

5. 发明授权

EP2746541B1 A method of detecting and localizing partial rotor-stator rubbing during the operation of a turbine 有权
标题翻译：一种在涡轮机运行期间检测和定位局部转子 - 定子摩擦的方法
公开(公告)号：EP2746541B1
公开(公告)日：2017-07-19
申请号：EP13196683.0
申请日：2013-12-11
申请人： Doosan Skoda Power S.r.o. , Západoceská univerzita v Plzni
发明人： Cerný, Václav, Ing. , Liska, Jindrich
IPC分类号： F01D25/04 , F01D25/16 , F01D19/00 , F01D21/00 , F01D21/04 , F01D11/20 , F02C9/28 , G01M15/14 , G01H1/00 , G01M13/04
CPC分类号： G01M13/045 , F01D11/20 , F01D19/00 , F01D21/003 , F01D21/04 , F01D25/04 , F01D25/164 , F02C9/28 , G01H1/006 , G01M15/14
摘要： The invention relates to a method of detecting and localizing partial rotor-stator rubbing during the operation of a turbine, in which the rotor (1) of the turbine is monitored by means of at least one pair of sensors (3, 30, 4, 40) of the rotor vibrations arranged in one plane of measuring (330, 440) perpendicular to the axis of the rotor (1) and by at least one pair of sensors of the absolute vibrations of the bearings (2, 20). When using this method of processing, synchronically digitalized signals of the sensors (3, 30, 4, 40) of rotor vibrations, first the arithmetic mean of the individual harmonic bands in full spectrum in the frequency domain is calculated, by which means the information about the subharmonic components and their multiples in the full spectrum of these signals is transfered into the frequency band -1 X to 1 X (where X indicates the rotational frequency of the rotor (1)), at the same time is by the calculation of the median estimated the level of the signal noise, with which individual frequency bands of the full spectrum are encumbered, and which is subtracted from the amplitudes in the individual frequency bands of full spectrum of the signals of the sensors. Thus normalized accumulated full spectrum of the signals of the sensors of rotor vibrations is created, in which, subsequently, the amplitude of the predetermined subharmonic component/components of the signals of rotor vibrations is compared with the amplitudes of the frequency components in its proximity determined by the Fourier transform or by approximation with the Fourier series. Simultaneously, the presence of the monitored subharmonic component of the signals of the rotor vibrations in the spectrum of these signals is deduced, on the basis of which subsequently the occurrence of rotor-stator rubbing is deduced. In case of the rubbing occurrence the place/places of the turbine where it takes place is further localized.
摘要翻译：本发明涉及一种在涡轮机运行期间检测和定位部分转子 - 定子摩擦的方法，其中涡轮机的转子（1）借助于至少一对传感器（3,30,4， 40）布置在垂直于转子（1）的轴线的测量（330,440）的一个平面中的转子振动以及通过轴承（2,20）的绝对振动的至少一对传感器。当使用这种处理方法时，转子振动的传感器（3,30,4,40）的同步数字化信号首先计算频域全频谱中各个谐波带的算术平均值，通过该方法，信息关于这些信号的全频谱中的次谐波分量及其倍数被转移到频带-1X至1X（其中X表示转子（1）的旋转频率），同时通过计算估计信号噪声的水平的中值，利用该信号噪声的全频谱的各个频带被阻塞，并且从传感器信号的全频谱的各个频带中的幅度中减去该信号噪声的水平。由此产生转子振动的传感器的信号的归一化积累的全频谱，其中随后将转子振动的信号的预定分谐波分量/分量的幅度与在其附近确定的频率分量的幅度进行比较通过傅立叶变换或通过与傅里叶级数近似。同时，推导出这些信号频谱中转子振动信号的监测分谐波分量的存在，据此推导出转子 - 定子摩擦的发生。在摩擦发生的情况下，发生涡轮的地方/位置进一步局部化。

6. 发明授权

EP3000986B1 PROCÉDÉ POUR ARRÊTER UN MOTEUR DE GIRAVION EN SURVITESSE ET GIRAVION ASSOCIÉ 有权
标题翻译： PROCÉDÉPOUR ARRESTER UN MOTEUR DE GIRAVION EN SURVITESSE ET GIRAVIONASSOCIÉE
公开(公告)号：EP3000986B1
公开(公告)日：2017-07-05
申请号：EP15182636.9
申请日：2015-08-27
申请人： Airbus Helicopters
发明人： CERTAIN, Bernard
IPC分类号： F01D21/02 , F02C3/10 , F02C9/28 , F02C9/46
CPC分类号： F02C9/28 , F01D21/00 , F01D21/003 , F01D21/02 , F01D21/04 , F01D21/06 , F01D21/14 , F02C3/04 , F02C3/10 , F02C7/22 , F02C9/26 , F02C9/46 , F05D2220/323 , F05D2220/329 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/093 , F05D2270/304 , F05D2270/331 , F05D2270/335

7. 发明公开

EP2602434A3 Dynamic load reduction system 有权
标题翻译：动态负载减少系统
公开(公告)号：EP2602434A3
公开(公告)日：2017-06-07
申请号：EP12194798.0
申请日：2012-11-29
申请人： General Electric Company
发明人： Wallace, Thomas Tracy , Simpson, William Joseph , List, John Howard , Tao, Jason Jianxin , Steen, Tod Robert
IPC分类号： F01D5/02 , F01D21/04 , F01D25/04
CPC分类号： F01D5/026 , F01D21/04 , F01D21/045 , F01D25/04 , F05D2260/31 , Y10T403/645
摘要： Bolted together first and second flanges (146, 147) include bolts (160) disposed through first bolt holes (158) in the first flange (146). The bolts extend at least partially through second holes (168) in the second flange (147). Bolt (160) include bolt heads (170), threads (174), and shanks (172) therebetween. Crushable spacers (182) disposed around the shanks (172) of a first plurality (180) of the bolts (160) and contacting and axially extending between the bolt heads (170) and the first flange (146). Bushings (192) disposed around a second plurality (194) of the bolts (160) and contacting and axially extending between the bolt heads (170) and the second flange (147). A shank outer diameter (SD) may be smaller than a thread diameter (TD) and heat shrink tubing (185) may be disposed around the bolt shanks (172) of at least some of the spacers (182). First bolt holes (158) may extend into an open annular slot (154) on first flange (146) and second holes (168) may extend partially through a forward extending annular rail (152) of second flange (147) with rail (152) received within slot (154).
摘要翻译：螺栓连接在一起的第一和第二凸缘（146,147）包括穿过第一凸缘（146）中的第一螺栓孔（158）设置的螺栓（160）。螺栓至少部分地延伸穿过第二凸缘（147）中的第二孔（168）。螺栓（160）包括螺栓头（170），螺纹（174）和其间的柄（172）。在第一组多个（180）螺栓（160）的柄（172）周围设置可压缩间隔件（182），并且在螺栓头（170）和第一法兰（146）之间接触并轴向延伸。布置在螺栓（160）的第二多个（194）周围并且在螺栓头（170）和第二法兰（147）之间接触并轴向延伸的衬套（192）。柄外径（SD）可以小于螺纹直径（TD），并且热收缩管（185）可以设置在至少一些间隔件（182）的螺栓柄（172）周围。第一螺栓孔158可以延伸到第一凸缘146上的开口环形槽154中，并且第二孔168可以部分地延伸穿过第二凸缘147的向前延伸的环形轨道152，）在时隙（154）内收到。

8. 发明公开

EP2546460A3 Turbine engine and load reduction device thereof 审中-公开
标题翻译：涡轮发动机和负载降低装置为此
公开(公告)号：EP2546460A3
公开(公告)日：2015-12-23
申请号：EP12165454.5
申请日：2012-04-25
申请人： General Electric Company
发明人： Steen, Tod Robert , Kang, Weize , Adam, David Paul
IPC分类号： F01D5/02 , F01D21/04 , F01D25/16
CPC分类号： F01D5/025 , F01D21/04 , F01D21/045 , F01D25/162
摘要： A fan rotor apparatus includes: a rotatable fan disk defining a central aperture and carrying an array of airfoil-shaped fan blades around its periphery, the disk having a forward end and an aft end; and an annular, generally axially-extending forward fan shaft extending through the aperture and coupled to the fan disk for rotation therewith, where the forward fan shaft joins the fan disk at or near the forward end.

9. 发明授权

EP1775424B1 Gas turbine engine blade tip clearance apparatus and method 有权
标题翻译：装置和方法用于在燃气涡轮机控制叶片尖端间隙
公开(公告)号：EP1775424B1
公开(公告)日：2015-11-04
申请号：EP06253005.0
申请日：2006-06-12
申请人： United Technologies Corporation
发明人： Schwarz, Frederick M. , Smith, Walter J.
IPC分类号： F01D11/22 , F01D21/04
CPC分类号： F01D11/122 , F01D11/22 , F01D21/04 , F04D29/052 , F05D2260/403 , F16C23/06 , F16C2360/23 , Y02T50/671

10. 发明公开

EP2829688A1 Method and device for monitoring an APU turbine 有权
标题翻译： Verfahren und Vorrichtung zurÜberwachungeiner Hilfsgasturbine
公开(公告)号：EP2829688A1
公开(公告)日：2015-01-28
申请号：EP14178425.6
申请日：2014-07-24
申请人： Air China Limited
发明人： DING, Huifeng , GU, Zhuping , YUE, Qihe , CHEN, Lei , WU, Jiaju , ZHANG, Hailong , ZHENG, Fengliang , HUANG, Lei
IPC分类号： F01D21/04 , F02C7/26
CPC分类号： G01M15/14 , B64F5/60 , F01D21/04 , F02C7/26 , F05D2220/50 , F05D2270/44 , G01N25/00 , G05B23/0235
摘要： The present invention relates to a method and device for monitoring APU turbine vane fracture and rotor shaft jam. The method for monitoring APU turbine vane fracture and rotor shaft jam comprises: acquiring APU messages at multiple time points within a period; obtaining the operation parameters of the APU according to the APU messages, the operation parameters including at least the start time STA; calculating the average value AVG and the deviation index δ of the start time STA within the period; and determining the circumstance of the turbine vane fracture and rotation shaft jam of APU is in stable phase, decline phase or malfunction phase according to the deviation index δ.
摘要翻译：本发明涉及一种用于监测APU涡轮叶片断裂和转子轴堵塞的方法和装置。监测APU涡轮叶片断裂和转子轴堵塞的方法包括：在一段时间内在多个时间点获取APU信息; 根据APU消息获取APU的操作参数，操作参数至少包括开始时间STA; 计算周期内的起始时间STA的平均值AVG和偏差指数“ 并根据偏差指标确定APU的涡轮叶片断裂和旋转轴堵塞的情况是稳定相位，衰减相位或故障相位。

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