公开(公告)号：US5168747A

公开(公告)日：1992-12-08

申请号：US618121

申请日：1990-11-26

Applicant: Karen L. Weaver ,  Michael Twerdochlib

Inventor： Karen L. Weaver ,  Michael Twerdochlib

IPC: G01M3/20

CPC classification number: G01M3/202

Abstract: Both a system and method are provided for detecting and locating a leak in the housing of the steam turbine components of an electric generator of the type that are connected to a vacuum pump that generates a negative pressure to remove air from the steam system, comprising a source of tracer gas for releasing a quantity of gas at potential leak locations on the exterior of the housings, a saturatable tracer gas detector having an inlet port in fluid communication with an outlet of the vacuum pump for detecting a flow of tracer gas associated with a selected minimum leak condition and for generating an electrical signal corresponding to this condition, an electrically controllable butterfly valve located upstream of the inlet port of the tracer gas detector for regulating the amount of tracer gas that flows into the detector, and a control assembly including a microprocessor that is electrically connected to both the tracer gas detector and to the valve for preventing a saturating flow of tracer gas from entering the inlet port of the detector. The system greatly expedites air inleakage inspections of such turbine systems since the tracer gas detector is prevented from becoming saturated with tracer gas, which in the prior art frequently caused the detector to become inoperative for significant periods of time.

Abstract translation: 提供了一种系统和方法，用于检测和定位在与产生负压以从蒸汽系统中除去空气的真空泵连接的类型的发电机的蒸汽轮机部件的壳体中的泄漏，所述真空泵包括 示踪气体源，用于在壳体外部的潜在泄漏位置处释放一定量的气体，可饱和示踪气体检测器，其具有与真空泵的出口流体连通的入口端口，用于检测与一个或多个气体相关联的示踪气体的流动 选择的最小泄漏条件和用于产生对应于该条件的电信号;位于示踪气体检测器的入口端的上游的电可控蝶阀，用于调节流入检测器的示踪气体的量;以及控制组件， 与示踪气体检测器和阀电连接以防止饱和流动的微处理器 的示踪气体进入检测器的入口。 由于示踪气体检测器被示踪气体饱和，该系统大大加速了对这种涡轮机系统的空气泄漏检查，这在现有技术中频繁地使检测器不能工作在相当长的一段时间内。

公开(公告)号：US5056986A

公开(公告)日：1991-10-15

申请号：US440070

申请日：1989-11-22

Applicant: George J. Silvestri, Jr. ,  Alvin L. Stock ,  Michael Twerdochlib

Inventor： George J. Silvestri, Jr. ,  Alvin L. Stock ,  Michael Twerdochlib

IPC: F01D11/08 ,  F01D9/02 ,  F01D11/22 ,  F01D11/24 ,  F01D21/08 ,  F01D25/00

CPC classification number: F01D5/225 ,  F01D11/22 ,  F01D11/24

Abstract: A positioning system for a steam turbine element includes a plurality of flex plates which support an inner cylinder of a steam turbine element with the rotating blades of a rotor and the stationary blades of the inner cylinder at a predetermined position. Sensors detect shifting of the rotor within the inner cylinder and provide control signals to a motor which drives the inner cylinder in an axial direction to account for shifting of the rotor.

Abstract translation: 用于汽轮机元件的定位系统包括多个柔性板，其将蒸汽涡轮机元件的内圆筒与转子的旋转叶片和内筒的固定叶片支撑在预定位置。 传感器检测转子在内筒内的移位，并且向轴向驱动内筒的马达提供控制信号以解决转子的移动。

公开(公告)号：US4900919A

公开(公告)日：1990-02-13

申请号：US209124

申请日：1988-06-20

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H9/00 ,  G01P15/093

CPC classification number: G01P15/093

Abstract: A vibration sensor 24 is disclosed which uses a piezoelectric crystal 26 to electrically modulate the phase of a laser beam using a phase modulator 28 producing a linearly phase modulated light beam. A DC bias can be provided by a battery 60 while a photocell 64 can provide the DC bias along with a calibration signal. The sensitivity of the sensor 24 can be doubled by passing the light beam through the sensor 24 twice using a reflector 74. By routing optical fibers 20, 22 and 31 carrying a reference beam and a sensing beam along the same physical path mechanical stress effect noise can be removed.

Abstract translation: 公开了使用压电晶体26使用产生线性相位调制光束的相位调制器28对激光束的相位进行电调制的振动传感器24。 DC电池可以由电池60提供，而光电池64可以提供DC偏置以及校准信号。 传感器24的灵敏度可以通过使用反射器74使光束通过传感器24两倍而被加倍。通过沿着相同的物理路径机械应力效应噪声路由携带参考光束和感测光束的光纤20,22和31 可以删除

公开(公告)号：US4817417A

公开(公告)日：1989-04-04

申请号：US46334

申请日：1987-05-06

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: F01D5/16 ,  F01D21/00 ,  F16B19/02 ,  G01H1/00 ,  G01H17/00 ,  G01H11/00

CPC classification number: G01H1/006 ,  F01D21/003 ,  F16B19/02

Abstract: Apparatus and method for aligning and securing a blade vibration sensor about a selectable position along an inner surface of a turbomachine. The apparatus comprises a first rotatable member adapted to eccentrically secure the sensor, a second rotatable member eccentrically coupled to the first member and a ring clamp for mounting the rotatable members on the inner surface. The method includes the steps of securing the sensor to the first member, mounting the rotatable members on the inner surface, rotating the first and second members until the sensor is in a selected position and securing the first and second members against rotation.

Abstract translation: 用于沿着涡轮机的内表面围绕可选位置对准和固定叶片振动传感器的装置和方法。 该装置包括适于偏心地固定传感器的第一可旋转构件，偏心联接到第一构件的第二可旋转构件和用于将可旋转构件安装在内表面上的环形夹具。 该方法包括以下步骤：将传感器固定到第一构件上，将可旋转构件安装在内表面上，使第一和第二构件旋转，直到传感器处于选定位置并固定第一和第二构件以避免旋转。

公开(公告)号：US4787408A

公开(公告)日：1988-11-29

申请号：US49493

申请日：1987-05-14

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: F16K7/10 ,  F16K31/126

CPC classification number: F16K7/10 ,  Y10T137/0396 ,  Y10T137/7888

Abstract: A normally closed valve system for sealing off low pressure gas flow through a pipe. The valve comprises an inflatable bladder which blocks relatively low pressure flow through the pipe and permits relatively high pressure flow through the pipe. In one form, the invention comprises a fail-safe bypass monitor and method for measuring air inleakage in a steam turbine. The monitor selectably bypasses low volumetric flow rates from a pipe for measurement and admits flow through the pipe whenever the flow rate exceeds a predetermined value.

Abstract translation: 一种常闭阀系统，用于密封低压气体流过管道。 该阀包括一个可膨胀的气囊，其阻挡通过管道的相对较低的压力流，并允许相对较高的压力流过管道。 在一种形式中，本发明包括故障安全旁路监视器和用于测量蒸汽涡轮机中的空气泄漏的方法。 监测器可选地绕过用于测量的管道的低体积流量，并且每当流量超过预定值时允许流过管道。

公开(公告)号：US4766557A

公开(公告)日：1988-08-23

申请号：US876562

申请日：1986-06-20

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: H02K9/24 ,  H02K9/00

CPC classification number: H02K9/24

Abstract: Apparatus which provides an indication of gas leakage from the interior of an electric generator into a closed circuit water-cooling system for the generator's stator coils. The closed circuit water-cooling system includes a water tank for degasification with the closed volume above the water level being occupied by a gas of the same type as the generator interior. Sensors are provided for obtaining indications of pressure, temperature and volume of the gas, and from these indications the number of moles of gas in the tank are calculated in periodic time increments. The gas is maintained within certain pressure limits by the addition or venting of gas, and if an addition or venting has taken place from one calculation to a next, a projected value for the number of moles is calculated after the change, had the change not occurred. The difference between the actual and projected value is then added onto subsequent calculated values to obtain a history of gas leakage.

Abstract translation: 提供从发电机内部到用于发电机定子线圈的闭路水冷却系统的气体泄漏指示的装置。 闭路水冷系统包括用于脱气的水箱，水位以上的封闭容积由与发电机内部相同类型的气体占据。 提供传感器以获得气体的压力，温度和体积的指示，并且根据这些指示，以周期时间增量计算罐中气体的摩尔数。 通过添加或排放气体，气体保持在一定的压力范围内，如果从一个计算到下一个计算发生添加或排放，则在更改之后计算痣数的预计值，如果没有更改 发生。 然后将实际值和预计值之间的差值加到随后的计算值上，以获得气体泄漏历史。

公开(公告)号：US09014460B2

公开(公告)日：2015-04-21

申请号：US13290297

申请日：2011-11-07

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G06K9/00 ,  F01D21/14 ,  G06T7/00 ,  G01H1/00 ,  G01M13/02 ,  G01H9/00 ,  G06T7/20 ,  F01D5/26

CPC classification number: F01D21/14 ,  F01D5/26 ,  G01H1/003 ,  G01H1/006 ,  G01H9/004 ,  G01M13/028 ,  G06T7/0002 ,  G06T7/20

Abstract: Apparatus (12) to measure blade vibration in a gas turbine engine (8). An illumination source (20) generates a sequence of illumination bursts in a field of view capturing a passing rotating blade (10) of the gas turbine engine. An imager (22) generates image data including a series of images capturing views of the passing rotating blade. The images are exposed in response to respective illumination bursts. A controller (30) is configured to process the series of images to identify one or more vibration modes of the rotating blade.

Abstract translation: 用于测量燃气涡轮发动机（8）中的叶片振动的装置（12）。 照明源（20）在捕获燃气涡轮发动机的经过的旋转叶片（10）的视野中产生一系列照明脉冲串。 成像器（22）生成图像数据，其包括捕获经过的旋转叶片的视图的一系列图像。 响应于相应的照明脉冲，曝光图像。 控制器（30）被配置为处理该系列图像以识别旋转叶片的一个或多个振动模式。

公开(公告)号：US20120279313A1

公开(公告)日：2012-11-08

申请号：US13101350

申请日：2011-05-05

Applicant: Evangelos V. Diatzikis ,  Edward D. Thompson ,  Michael Twerdochlib

Inventor： Evangelos V. Diatzikis ,  Edward D. Thompson ,  Michael Twerdochlib

IPC: G01F1/00

CPC classification number: G01F1/661 ,  G01F1/28 ,  G01P5/02

Abstract: A method is provided for monitoring velocity of a fluid flow through a predetermined fluid flow space. A fiber optic conductor includes a flow measurement portion defining an elongated dimension extending across a portion of the fluid flow space. The fluid flow in the fluid flow space causes the measurement portion of the fiber optic conductor to flex in a direction transverse to the elongated dimension. Optical radiation is supplied to the fiber optic conductor, and optical radiation is received from the fiber optic conductor after the supplied optical radiation has passed through the measurement portion. The received optical radiation is analyzed to effect a determination of a flow velocity of the fluid flow.

Abstract translation: 提供了一种用于监测流过预定流体流动空间的流体流速的方法。 光纤导体包括限定延伸穿过流体流动空间的一部分的细长尺寸的流量测量部分。 流体流动空间中的流体流动导致光纤导体的测量部分沿横向于细长尺寸的方向弯曲。 向光纤导体提供光辐射，并且在所提供的光辐射已经通过测量部分之后从光纤导体接收光辐射。 分析所接收的光辐射以确定流体流动的流速。

公开(公告)号：US20120209545A1

公开(公告)日：2012-08-16

申请号：US13024496

申请日：2011-02-10

Applicant: Benjamin T. Humphries ,  Evangelos V. Diatzikis ,  Michael Twerdochlib ,  James F. Lau ,  Edward D. Thompson

Inventor： Benjamin T. Humphries ,  Evangelos V. Diatzikis ,  Michael Twerdochlib ,  James F. Lau ,  Edward D. Thompson

IPC: G01H11/00 ,  G06F19/00

CPC classification number: G01H13/00

Abstract: A system and method for monitoring the condition of a vibration sensor in a system. Vibrations are received in the system at one or more vibration sensors. Sensor data is output by the vibration sensor(s). The sensor data includes data representative of the vibrations in the system and data representative of a natural frequency of the corresponding vibration sensor. The sensor data output from the vibration sensor(s) is monitored, and upon a change in the data representative of the natural frequency of a vibration sensor, that vibration sensor is flagged.

Abstract translation: 一种用于监测系统中的振动传感器的状态的系统和方法。 在一个或多个振动传感器的系统中接收振动。 传感器数据由振动传感器输出。 传感器数据包括表示系统中的振动的数据和表示相应的振动传感器的固有频率的数据。 监测从振动传感器输出的传感器数据，并且在代表振动传感器的固有频率的数据改变时，该振动传感器被标记。

公开(公告)号：US08076909B2

公开(公告)日：2011-12-13

申请号：US12209333

申请日：2008-09-12

Applicant: Evangelos Diatzikis ,  Hans-Gerd Brummel ,  Michael Twerdochlib ,  Lutz Intichar ,  Matthias Humer ,  Detlef Frerichs

Inventor： Evangelos Diatzikis ,  Hans-Gerd Brummel ,  Michael Twerdochlib ,  Lutz Intichar ,  Matthias Humer ,  Detlef Frerichs

IPC: H02K11/00

CPC classification number: H02K11/25 ,  H02K11/20

Abstract: A method and system for monitoring the operating conditions of an electric generator. The system includes a triad sensor array formed within a predetermined section of a fiber optic conductor. The triad sensor array is formed of a group of sensors including a first sensor including a Bragg grating for producing a first signal representative of strain in a stator bar of the generator, a second sensor including a Bragg grating for producing a second signal representative of temperature in the stator bar, and a third sensor including a Bragg grating for producing a third signal representative of vibration amplitude in the stator bar.

Abstract translation: 一种用于监测发电机运行状况的方法和系统。 该系统包括形成在光纤导体的预定部分内的三元组传感器阵列。 三元组传感器阵列由一组传感器组成，包括第一传感器，其包括布拉格光栅，用于产生表示发生器的定子条中的应变的第一信号;第二传感器，包括用于产生代表温度的第二信号的布拉格光栅 以及包括布拉格光栅的第三传感器，用于产生代表定子条中振动振幅的第三信号。