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1. 发明申请

US20050144955A1 METHOD AND APPARATUS FOR REDUCTION OF COMBUSTOR DYNAMIC PRESSURE DURING OPERATION OF GAS TURBINE ENGINES 有权
标题翻译：用于减少燃气轮机发动机运行时的燃烧器动态压力的方法和装置
公开(公告)号：US20050144955A1
公开(公告)日：2005-07-07
申请号：US10748360
申请日：2003-12-30
申请人： Steven Handelsman , Michael Durling , James Rackmales , Mark Lipton , William Barrow , Robert Pearson , Ravi Rajamani
发明人： Steven Handelsman , Michael Durling , James Rackmales , Mark Lipton , William Barrow , Robert Pearson , Ravi Rajamani
IPC分类号： F02C9/24 , F02C9/00 , F23N5/16 , F23R3/20 , F23R3/34
CPC分类号： F23N5/16 , F23R2900/00013
摘要： Methods and apparatus for operating a gas turbine engine without sustained detrimental levels of dynamic pressure are provided. The engine includes a combustor. The method includes determining the combustor acoustic level amplitude, comparing the acoustic level to a predetermined upper acoustic limit, and adjusting a fuel flow distribution to the combustor using a closed loop controller to facilitate reducing the acoustic level to a predetermined lower acoustic limit that is less than the upper acoustic limit.
摘要翻译：提供了在没有持续不利的动态压力水平的情况下操作燃气涡轮发动机的方法和装置。发动机包括燃烧器。该方法包括确定燃烧器声级幅度，将声级与预定的上限极限进行比较，以及使用闭环控制器调节燃烧器的燃料流量分布，以便于将声级降低到较小的声学极限高于声音上限。

2. 发明授权

US08256277B2 Gas turbine engine debris monitoring arrangement 有权
标题翻译：燃气轮机发动机碎片监测安排
公开(公告)号：US08256277B2
公开(公告)日：2012-09-04
申请号：US12482605
申请日：2009-06-11
申请人： Alexander I. Khibnik , Ravi Rajamani , Rajendra K. Agrawal , Coy Bruce Wood
发明人： Alexander I. Khibnik , Ravi Rajamani , Rajendra K. Agrawal , Coy Bruce Wood
IPC分类号： G01M15/14
CPC分类号： F02C7/052 , F01D17/24 , F01D21/10 , F05D2260/607 , G01M15/14 , G01N15/1031 , G01N2015/0046 , G01N2015/1075 , G01N2015/1087 , Y02T50/675
摘要： An example method of controlling gas turbine engine debris monitoring sensors includes detecting debris carried by air moving through an engine using at least first and second debris sensors, and processing signals from both the first and second debris sensors using a common signal conditioning unit. Another example method of monitoring gas turbine engine debris includes configuring at least one first debris sensor to detect debris carried by airflow moving through a first portion of an engine and configuring at least one second debris sensor to detect debris carried by airflow moving though a second portion of the engine. The method alternates between using the first debris sensor to detect debris and using the second debris sensor to detect debris.
摘要翻译：控制燃气涡轮发动机碎片监测传感器的示例性方法包括使用至少第一和第二碎屑传感器检测通过发动机移动的空气携带的碎片，以及使用公共信号调节单元处理来自第一和第二碎片传感器的信号。监测燃气涡轮发动机碎片的另一示例性方法包括配置至少一个第一碎屑传感器以检测由气流移动通过发动机的第一部分携带的碎屑，并且配置至少一个第二碎屑传感器以检测通过第二部分移动的气流携带的碎屑的发动机。该方法在使用第一碎片传感器以检测碎片并使用第二碎屑传感器来检测碎屑之间进行交替。

3. 发明授权

US07853441B2 Systems and methods involving engine models 有权
标题翻译：涉及发动机型号的系统和方法
公开(公告)号：US07853441B2
公开(公告)日：2010-12-14
申请号：US11843193
申请日：2007-08-22
申请人： Allan J. Volponi , Ravi Rajamani , Frederick A. Just-Agosto , David Serrano
发明人： Allan J. Volponi , Ravi Rajamani , Frederick A. Just-Agosto , David Serrano
IPC分类号： G06G7/48
CPC分类号： G05B17/02
摘要： Systems and methods involving engine models are provided. A representative method for updating a gas turbine engine reference model includes: determining whether an absolute difference between a dominant time constant of a sensor and an assumed sensor model time constant is outside a tolerance value; and responsive to determining that the absolute difference is outside the tolerance value, updating the assumed sensor model time constant with the dominant time constant of the sensor.
摘要翻译：提供涉及发动机型号的系统和方法。用于更新燃气涡轮发动机参考模型的代表性方法包括：确定传感器的主要时间常数与假定的传感器模型时间常数之间的绝对差是否在公差值之外; 并且响应于确定所述绝对差异超出所述公差值，用所述传感器的所述主要时间常数来更新所述假设的传感器模型时间常数。

4. 发明申请

US20100292905A1 SYSTEM AND METHOD OF ESTIMATING GAS TURBINE ENGINE PERFORMANCE 有权
标题翻译：气体涡轮发动机性能评估系统及方法
公开(公告)号：US20100292905A1
公开(公告)日：2010-11-18
申请号：US12467992
申请日：2009-05-18
申请人： Rajendra K. Agrawal , Ravi Rajamani , William F. Schneider , Coy Bruce Wood
发明人： Rajendra K. Agrawal , Ravi Rajamani , William F. Schneider , Coy Bruce Wood
IPC分类号： F02C9/00 , G01M15/14
CPC分类号： F02C9/00 , F05D2260/607 , F05D2260/80 , G01M15/14 , Y02T50/675
摘要： An example method of estimating gas turbine engine performance deterioration includes monitoring debris in at least a portion of an engine and estimating performance deterioration of at least one component of the engine using information from the monitoring. The method may use gas path parameters, such as pressures, temperatures, and speeds to establish the estimated performance deterioration. An example gas turbine engine performance assessment system includes a debris monitoring system configured to monitor debris moving through a portion of an engine and a controller programmed to estimate performance deterioration of at least one component of the engine based on information from the debris monitoring system.
摘要翻译：估计燃气涡轮发动机性能恶化的示例性方法包括在发动机的至少一部分中监测碎屑并使用来自监测的信息估计发动机的至少一个部件的性能劣化。该方法可以使用气体路径参数，例如压力，温度和速度来建立估计的性能劣化。示例性燃气涡轮发动机性能评估系统包括碎片监测系统，其被配置为监测通过发动机的一部分移动的碎屑和被编程为基于来自碎片监测系统的信息来估计发动机的至少一个部件的性能劣化的控制器。

5. 发明申请

US20080273965A1 System and method for controlling stator assemblies 有权
标题翻译：用于控制定子总成的系统和方法
公开(公告)号：US20080273965A1
公开(公告)日：2008-11-06
申请号：US11799251
申请日：2007-05-01
申请人： Ravi Rajamani , Peter E. Chenard , Coy Bruce Wood
发明人： Ravi Rajamani , Peter E. Chenard , Coy Bruce Wood
IPC分类号： F01D7/00
CPC分类号： F01D17/162 , F01D17/02 , F01D21/003 , F04D27/0246 , F04D29/563
摘要： A variable vane control system for use with a gas turbine engine includes a plurality of vanes, an actuation assembly, a mechanical linkage assembly, and a sensor. Each of the plurality of vanes has an airfoil portion disposed in a gas flowpath of the gas turbine engine, and a position of each of the vanes is adjustable with respect to an angle of attack of the airfoil portion of each vane. The actuation assembly is configured for generating actuation force to position the plurality of vanes. The mechanical linkage assembly operably connects the actuation assembly to at least one of the plurality of vanes. The sensor is configured to sense at least one of the position of the airfoil portions of the plurality of vanes and the mechanical linkage assembly, and to generate a position output signal.
摘要翻译：用于燃气涡轮发动机的可变叶片控制系统包括多个叶片，致动组件，机械连杆组件和传感器。多个叶片中的每一个具有设置在燃气涡轮发动机的气体流路中的翼型部分，并且每个叶片的位置相对于每个叶片的翼型部分的迎角可调节。致动组件构造成用于产生致动力以定位多个叶片。机械联动装置将致动组件可操作地连接到多个叶片中的至少一个。传感器构造成感测多个叶片和机械连杆组件的翼型部分的位置中的至少一个，并且产生位置输出信号。

6. 发明申请

US20080234979A1 Process and system for multi-objective global optimization of maintenance schedules 有权
标题翻译：维护计划的多目标全局优化过程和系统
公开(公告)号：US20080234979A1
公开(公告)日：2008-09-25
申请号：US11725934
申请日：2007-03-19
申请人： Sorin Costiner , Howard A. Winston , Jihua Wang , Alexander I. Khibnik , Ravi Rajamani , Thomas R. Matthis , Ricardo A. Benitez , Julie A. Ireland , Robert M. Cohen , Ellen Cohen
发明人： Sorin Costiner , Howard A. Winston , Jihua Wang , Alexander I. Khibnik , Ravi Rajamani , Thomas R. Matthis , Ricardo A. Benitez , Julie A. Ireland , Robert M. Cohen , Ellen Cohen
IPC分类号： G21C17/00
CPC分类号： G06Q10/06 , G06Q10/04
摘要： A process for optimizing maintenance work schedules for at least one engine includes the steps of retrieving at least one set of data for an engine from a computer readable storage medium; selecting at least one scheduling parameter for the engine; selecting a set of maintenance rules for the engine; selecting at least one maintenance work decision; selecting at least one objective for the engine; optimizing the at least one objective to generate at least one optimal maintenance work decision; and generating at least one optimal maintenance work schedule for the engine.
摘要翻译：用于优化至少一个引擎的维护工作计划的过程包括以下步骤：从计算机可读存储介质检索用于引擎的至少一组数据; 为引擎选择至少一个调度参数; 为引擎选择一套维护规则; 选择至少一个维护工作决定; 为发动机选择至少一个物镜; 优化所述至少一个目标以产生至少一个最佳维护工作决定; 并为发动机生成至少一个最佳维护工作进度。

7. 发明授权

US08424279B2 Particle separator and debris control system 有权
标题翻译：颗粒分离器和碎屑控制系统
公开(公告)号：US08424279B2
公开(公告)日：2013-04-23
申请号：US11729117
申请日：2007-03-28
申请人： Ravi Rajamani , Rajendra K. Agrawal , Coy Bruce Wood
发明人： Ravi Rajamani , Rajendra K. Agrawal , Coy Bruce Wood
IPC分类号： F02G3/00 , F01D15/12
CPC分类号： F02C7/052 , B01D45/14 , B64D33/02 , B64D2033/0246 , F02C7/057 , F04D29/701 , F05D2270/01 , F05D2270/30
摘要： A gas turbine engine system includes an air inlet, an inlet particle separator located at the air inlet and having a blower selectively driven by a variable output motor, and a controller for dynamically controlling the variable output motor that selectively drives the blower of the inlet particle separator.
摘要翻译：燃气涡轮发动机系统包括空气入口，位于空气入口处的入口颗粒分离器，并且具有由可变输出电动机选择性地驱动的鼓风机;以及控制器，用于动态地控制可选择地驱动入口颗粒的鼓风机的可变输出电动机分隔器。

8. 发明申请

US20110179763A1 Particle separator and debris control system 有权
标题翻译：颗粒分离器和碎屑控制系统
公开(公告)号：US20110179763A1
公开(公告)日：2011-07-28
申请号：US11729117
申请日：2007-03-28
申请人： Ravi Rajamani , Rajendra K. Agrawal , Coy Bruce Wood
发明人： Ravi Rajamani , Rajendra K. Agrawal , Coy Bruce Wood
IPC分类号： F02G3/00
CPC分类号： F02C7/052 , B01D45/14 , B64D33/02 , B64D2033/0246 , F02C7/057 , F04D29/701 , F05D2270/01 , F05D2270/30
摘要： A gas turbine engine system includes an air inlet, an inlet particle separator located at the air inlet and having a blower selectively driven by a variable output motor, and a controller for dynamically controlling the variable output motor that selectively drives the blower of the inlet particle separator.
摘要翻译：燃气涡轮发动机系统包括空气入口，位于空气入口处的入口颗粒分离器，并且具有由可变输出电动机选择性地驱动的鼓风机;以及控制器，用于动态地控制可选择地驱动入口颗粒的鼓风机的可变输出电动机分隔器。

9. 发明授权

US07927067B2 System and method for controlling stator assemblies 有权
标题翻译：用于控制定子总成的系统和方法
公开(公告)号：US07927067B2
公开(公告)日：2011-04-19
申请号：US11799251
申请日：2007-05-01
申请人： Ravi Rajamani , Peter E. Chenard , Coy Bruce Wood
发明人： Ravi Rajamani , Peter E. Chenard , Coy Bruce Wood
IPC分类号： F01D17/16
CPC分类号： F01D17/162 , F01D17/02 , F01D21/003 , F04D27/0246 , F04D29/563
摘要： A variable vane control system for use with a gas turbine engine includes a plurality of vanes, an actuation assembly, a mechanical linkage assembly, and a sensor. Each of the plurality of vanes has an airfoil portion disposed in a gas flowpath of the gas turbine engine, and a position of each of the vanes is adjustable with respect to an angle of attack of the airfoil portion of each vane. The actuation assembly is configured for generating actuation force to position the plurality of vanes. The mechanical linkage assembly operably connects the actuation assembly to at least one of the plurality of vanes. The sensor is configured to sense at least one of the position of the airfoil portions of the plurality of vanes and the mechanical linkage assembly, and to generate a position output signal.
摘要翻译：用于燃气涡轮发动机的可变叶片控制系统包括多个叶片，致动组件，机械连杆组件和传感器。多个叶片中的每一个具有设置在燃气涡轮发动机的气体流路中的翼型部分，并且每个叶片的位置相对于每个叶片的翼型部分的迎角可调节。致动组件构造成用于产生致动力以定位多个叶片。机械联动装置将致动组件可操作地连接到多个叶片中的至少一个。传感器构造成感测多个叶片和机械连杆组件的翼型部分的位置中的至少一个，并且产生位置输出信号。

10. 发明授权

US07788209B2 Hybrid fault reasoning and guided troubleshooting system that uses case-based reasoning and model-based reasoning 有权
标题翻译：基于案例推理和模型推理的混合故障推理和引导故障排除系统
公开(公告)号：US07788209B2
公开(公告)日：2010-08-31
申请号：US12114896
申请日：2008-05-05
申请人： Michel D. Paquet , Baban V. Baliga , Ravi Rajamani , Andrew Paul Gagnon
发明人： Michel D. Paquet , Baban V. Baliga , Ravi Rajamani , Andrew Paul Gagnon
IPC分类号： G06F9/44
CPC分类号： G06N5/045
摘要： A fault reasoning system combines both a model-based reasoning approach based upon predicted root causes of a plurality of fault signals, and a case-based reasoner that looks at the actual root cause of actual cases.
摘要翻译：故障推理系统结合了基于多个故障信号的预测根本原因的基于模型的推理方法，以及查看实际情况的实际根本原因的基于案例的推理者。

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