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1. 发明授权

US10500640B2 Systems and methods of volumetric 3D printing 有权
公开(公告)号：US10500640B2
公开(公告)日：2019-12-10
申请号：US15446275
申请日：2017-03-01
申请人： SIEMENS ENERGY, INC.
发明人： Heiko Claussen , Livio Dalloro , Joshua S. McConkey
IPC分类号： B33Y10/00 , B22F3/105 , B33Y30/00 , B33Y80/00 , B33Y50/02 , B29K105/00
CPC分类号： B22F3/1055 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y80/00 , B22F2003/1056 , B22F2003/1057 , B29K2105/0055 , B29K2105/0058 , B29K2105/251
摘要： Systems and methods for volumetrically fabricating 3D objects. The system includes at least a controller operably connected to a build volume and one or more energy sources. The build volume defines a volumetric buildable size of the object to be fabricated and includes media for fabricating the object therein. The energy source(s) is configured to emit at least a first and second energy beam therefrom. The controller is configured to direct the first and second emitted energy beams towards an intersecting point in the build volume to begin fabricating the media therein. The energy from each of the first and second beams is not sufficient to fabricate the object out of the media. The object is fabricated once multiple beams intersect, as collectively, the energy of the intersecting beams is sufficient to fabricate the object.

2. 发明授权

US10240988B2 Fully automated calibration for acoustic pyrometry 有权
公开(公告)号：US10240988B2
公开(公告)日：2019-03-26
申请号：US14894010
申请日：2014-05-29
申请人： Siemens Energy, Inc.
发明人： Michelle xiaohong Yan , Heiko Claussen , Upul P. DeSilva , Justinian Rosca , Tong Fang , Nancy H. Ulerich
IPC分类号： G01N29/024 , G01K11/24 , G01K15/00 , G01K13/02
摘要： A method of calibrating transceiver positions inside an acoustic pyrometry measuring vessel that contains a plurality of transceivers, includes determining (40) a speed of sound in the acoustic pyrometry measuring vessel from a temperature and gas composition of a gas inside the acoustic pyrometry measuring vessel, acquiring (41) time-of-flight (TOFs) Δti,j measurements from a plurality of pairs i,j of transceivers inside the acoustic pyrometry measuring vessel, estimating (42) a radius of the acoustic pyrometry measuring vessel from an average of the acquired TOF measurements, and using (43) an estimated radius of the acoustic pyrometry measuring vessel to estimate errors Δθj of displacement angles of the transceivers.

3. 发明申请

US20150027211A1 FLAME MONITORING OF A GAS TURBINE COMBUSTOR USING A CHARACTERISTIC SPECTRAL PATTERN FROM A DYNAMIC PRESSURE SENSOR IN THE COMBUSTOR 有权
标题翻译：使用来自动力传感器在燃烧器中的特征谱图的燃气涡轮机燃烧器的火焰监测
公开(公告)号：US20150027211A1
公开(公告)日：2015-01-29
申请号：US14513457
申请日：2014-10-14
申请人： SIEMENS ENERGY, INC.
发明人： Heiko Claussen , Nancy H. Ulerich , Zainul Momin , Patrick Ronald Flohr
IPC分类号： G01L19/06 , G01N29/36 , G01N29/44 , G01M15/14
CPC分类号： F23M11/045 , F23N5/16 , F23N5/242 , F23N2025/04 , F23N2029/16 , F23N2031/06 , F23N2041/20 , G01H17/00 , G01K11/22 , G01L19/0663 , G01M15/14 , G01N29/00 , G01N29/36 , G01N29/44 , G01N2291/0217 , G01N2291/0254 , Y02T50/677
摘要： The state of a flame in a gas turbine engine combustor is acoustically monitored using a dynamic pressure sensor within the combustor. A spectral pattern of a dynamic pressure sensor output signal from the sensor is compared with a characteristic frequency pattern that includes information about an acoustic pattern of the flame and information about acoustic signal canceling due to reflections within the combustor. The spectral pattern may also be compared with a characteristic frequency pattern including information about a flame-out condition in the combustor.
摘要翻译：使用燃烧器内的动态压力传感器对燃气涡轮发动机燃烧器中的火焰的状态进行声学监测。将来自传感器的动态压力传感器输出信号的光谱图与包括关于火焰的声学图案的信息和由于燃烧器内的反射引起的声信号消除的信息的特征频率图案进行比较。光谱图也可以与包括关于燃烧器中的熄火状态的信息的特征频率模式进行比较。

4. 发明申请

US20180172555A1 METHOD FOR OPTIMIZING BASE POINTS USED IN TEMPERATURE MAPPING OF A TURBINE HOT GAS FLOW PATH BY DETERMINING ACOUSTIC SIGNAL INTERSECTION POINTS 审中-公开
公开(公告)号：US20180172555A1
公开(公告)日：2018-06-21
申请号：US15128283
申请日：2015-04-22
申请人： Siemens Energy, Inc.
发明人： Upul P. DeSilva , Heiko Claussen , Karthik Ragunathan
IPC分类号： G01M15/14 , G01K13/02 , G01K11/24 , G01F1/66
CPC分类号： G01M15/14 , G01F1/668 , G01K11/24 , G01K13/02 , G01K2013/024 , G01K2213/00
摘要： A method for optimizing base points each used in a corresponding basis function utilized in generating a parameter map for a hot gas flow path constrained by a boundary. The method includes providing a plurality of transceivers, wherein each transceiver generates an acoustic signal that travels through a measurement space in the hot gas flow path and wherein each acoustic signal defines an acoustic path. The method also includes locating the transceivers such that the acoustic paths travel through a region of interest in the measurement space. In addition, an average temperature for each acoustic path is determined. Next, at least one base point in the measurement space is determined. Further, the method includes providing a basis function for each base point and generating a weight of each basis function.

5. 发明授权

US09945737B2 Method for determining waveguide temperature for acoustic transceiver used in a gas turbine engine 有权
公开(公告)号：US09945737B2
公开(公告)日：2018-04-17
申请号：US15128417
申请日：2015-04-21
申请人： Siemens Energy, Inc.
发明人： Upul P. DeSilva , Heiko Claussen , Karthik Ragunathan
IPC分类号： G01K11/22 , G01K13/02 , G01K11/24 , G01K3/14 , G01F1/66 , G01P5/24
CPC分类号： G01K11/24 , G01F1/668 , G01K1/20 , G01K3/14 , G01K7/427 , G01K13/02 , G01K2013/024 , G01K2213/00 , G01P5/245
摘要： A method for determining waveguide temperature for at least one waveguide of a transceiver utilized for generating a temperature map. The transceiver generates an acoustic signal that travels through a measurement space in a hot gas flow path defined by a wall such as in a combustor. The method includes calculating a total time of flight for the acoustic signal and subtracting a waveguide travel time from the total time of flight to obtain a measurement space travel time. A temperature map is calculated based on the measurement space travel time. An estimated wall temperature is obtained from the temperature map. An estimated waveguide temperature is then calculated based on the estimated wall temperature wherein the estimated waveguide temperature is determined without the use of a temperature sensing device.

6. 发明申请

US20170238101A1 OPTICAL FIBER BASED MICROPHONE ARRAY FOR DETECTING ACOUSTIC EMISSIONS GENERATED BY AN AREA OF INTEREST 有权
公开(公告)号：US20170238101A1
公开(公告)日：2017-08-17
申请号：US15045303
申请日：2016-02-17
申请人： Siemens Energy, Inc.
发明人： Christine P. Spiegelberg , Heiko Claussen
IPC分类号： H04R23/00 , H04R29/00 , H04R1/40
CPC分类号： H04R23/008 , H04R1/406 , H04R29/00
摘要： A microphone array for detecting acoustic emissions generated by equipment. The array includes at least one grid having a plurality of sensors each including a compact arrangement of optical fiber having first and second optical fiber ends wherein the first optical fiber end of a first sensor is terminated. The array also includes an optoelectronic device coupled to a second optical fiber end of a second sensor, wherein the optoelectronic device generates laser light that is transmitted through the plurality of sensors in the grid and is reflected back to the optoelectronic device to enable detection of acoustic emissions.

7. 发明申请

US20170082032A1 METHOD AND SYSTEM FOR THERMAL EXPANSION COMPENSATION IN HEATED FLOW CHARACTERIZATION 有权
公开(公告)号：US20170082032A1
公开(公告)日：2017-03-23
申请号：US14856728
申请日：2015-09-17
申请人： Siemens Energy, Inc.
发明人： Upul P. DeSilva , Heiko Claussen
IPC分类号： F02C9/00 , G01M15/14
CPC分类号： F02C9/00 , F05D2260/80 , G01K1/20 , G01K11/24 , G01K13/02 , G01M15/14 , G01P5/245
摘要： Techniques for a chamber, such as gas turbine engine (100), surrounding a heated fluid include a sensor (150) mounted in a first wall (228b, 229b) of the chamber to detect phenomenon inside the chamber and a processor (702). The processor is in electrical communication with the sensor and is configured to receive first data, determine a first temperature of the first wall, determine a current path length, determine properties of the fluid flow, and operate a device based on the properties. First data indicates a value of the phenomenon along a path between the first wall and a different wall of the chamber. The current path length (268b) is based on a nominal path length (268a) and thermal expansion of the first wall due to the first temperature. The property of fluid flow in the chamber is based on the first data and the current path length.

8. 发明申请

US20160299225A1 METHOD FOR ESTIMATING TIME OF FLIGHT FOR ACOUSTIC PYROMETRY 审中-公开
标题翻译：估计飞行时间用于声学色谱的方法
公开(公告)号：US20160299225A1
公开(公告)日：2016-10-13
申请号：US15057520
申请日：2016-03-01
申请人： Siemens Energy, Inc.
发明人： UPUL P. DeSilva , Heiko Claussen , Karthik Ragunathan
IPC分类号： G01S15/58 , G01K11/24 , G01M15/14
CPC分类号： G01S15/586 , F02C9/26 , G01F1/668 , G01K11/24 , G01K13/02 , G01K2013/024 , G01K2213/00 , G01M15/14
摘要： A method for estimating a time of flight of an acoustic signal in a hot gas flow path having background noise wherein a plurality of transceivers each generate an acoustic signal. The method includes providing an acoustic signal of interest that travels in a direction opposite a reference acoustic signal on a first acoustic path between a pair of transceivers. The method also includes identifying at least one minimum peak height in the acoustic signal of interest having a peak height that is greater than the background noise. Further, the method includes obtaining time of flight information of other acoustic paths having substantially the same path length as the first path to provide a range of time of flights wherein a time of flight that falls within the time of flight range and is associated with a minimum peak height forms the estimated time of flight.
摘要翻译：一种用于估计具有背景噪声的热气流路径中的声信号的飞行时间的方法，其中多个收发器各自产生声信号。该方法包括提供在一对收发器之间的第一声路上与参考声信号相反的方向行进的感兴趣的声信号。该方法还包括识别感兴趣的声学信号中具有大于背景噪声的峰值高度的至少一个最小峰值高度。此外，该方法包括获得具有与第一路径基本相同的路径长度的其他声学路径的飞行时间信息，以提供飞行时间的范围，其中飞行时间落在飞行范围内并与之相关联最小峰高形成了估计的飞行时间。

9. 发明申请

US20160103039A1 SINGLE DYNAMIC PRESSURE SENSOR BASED FLAME MONITORING OF A GAS TURBINE COMBUSTOR 有权
标题翻译：单动态压力传感器基于燃气轮机燃烧器的火焰监测
公开(公告)号：US20160103039A1
公开(公告)日：2016-04-14
申请号：US14513316
申请日：2014-10-14
申请人： SIEMENS ENERGY, INC.
发明人： Heiko Claussen , Nancy H. Ulerich , Zainul Momin , Patrick Ronald Flohr
IPC分类号： G01M15/14 , G01L11/04
CPC分类号： G01M15/14 , F23N5/16 , F23N2025/04 , F23R2900/00013 , G01L11/04
摘要： The state of a flame in a gas turbine combustor is acoustically monitored using a single dynamic pressure sensor within the combustor. A dynamic pressure sensor output signal is received from the single sensor and is processed to determine a flame status. The signal is processed by performing an autocorrelation operation to identify time-separated portions of the signal and to determine that the time-separated portions of the signal include portions indicative of acoustic oscillations emitted by the flame in the gas turbine engine combustor and received directly by the single acoustic sensor, and portions indicative of reflections.
摘要翻译：使用燃烧器内的单个动态压力传感器对燃气轮机燃烧器中的火焰的状态进行声学监测。从单个传感器接收动态压力传感器输出信号，并被处理以确定火焰状态。通过执行自相关操作来识别信号来处理信号，以识别信号的时间分离部分，并确定信号的时间分隔部分包括表示燃气涡轮发动机燃烧器中的火焰发出的声振荡的部分，并直接由单个声学传感器和指示反射的部分。

10. 发明申请

US20150168190A1 ACTIVE MEASUREMENT OF GAS FLOW VELOCITY OR SIMULTANEOUS MEASUREMENT OF VELOCITY AND TEMPERATURE, INCLUDING IN GAS TURBINE COMBUSTORS 有权
标题翻译：气体流量速率或同时测量速度和温度的主要测量，包括气体涡轮机
公开(公告)号：US20150168190A1
公开(公告)日：2015-06-18
申请号：US14207803
申请日：2014-03-13
申请人： Siemens Energy, Inc.
发明人： Upul P. DeSilva , Heiko Claussen
IPC分类号： G01F1/66 , F02C7/22 , F02C3/04 , G01M15/14
CPC分类号： F02C3/04 , F02C7/22 , F05D2270/303 , G01F1/66 , G01F1/668 , G01K11/24 , G01K13/02 , G01K2013/024 , G01K2213/00 , G01M15/14
摘要： Active acoustic velocity and pyrometry-based gas flow velocity and temperature measurement, such as for monitoring of gas turbine combustors, including industrial gas turbine (IGT) combustors is incorporated into the combustion monitoring and control system by addition of an acoustic transmitter or acoustic transceiver that transmits a sound wave in a line-of-sight with a plurality of acoustic sensors, such as dynamic pressure sensors. For velocity measurement, sound transmission time-of-flight that is directed generally along the gas flow path is measured by the controller and correlated with gas flow velocity along the line-of-sight. Similarly, sound transmission time-of-flight is correlated with temperature along the line-of-sight. Path(s) of acoustic transmission serve as velocity or velocity/absolute temperature measurement. In an integrated thermoacoustic pressure-based sensor and monitoring/control system embodiment, the controller correlates velocity and, if desired, absolute active path temperatures with acoustic transmission and time-of-flight analysis techniques.
摘要翻译：主要的声速和基于高温测量的气体流速和温度测量，例如用于监测燃气轮机燃烧器（包括工业燃气轮机（IGT））的燃烧器，通过添加声发射器或声收发器而被并入燃烧监测和控制系统在诸如动态压力传感器之类的多个声学传感器的视线中发射声波。对于速度测量，通常沿着气体流动路径引导的声音传播时间是通过控制器测量的，并且沿着视线与气体流速相关联。类似地，声音传输的飞行时间与沿着视线的温度相关。声学传播的路径用作速度或速度/绝对温度测量。在基于集成的基于热声压力的传感器和监视/控制系统实施例中，控制器将速度与绝对有效路径温度（如果需要）相关联，具有声学传播和飞行时间分析技术。

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