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公开(公告)号：US08919129B2
公开(公告)日：2014-12-30
申请号：US13852797
申请日：2013-03-28
CPC分类号： F02C9/32
摘要： A method for controlling a gas turbine engine fuel control valve during low flow conditions includes positioning the fuel control valve in an operating position. The method also includes determining a fuel control valve flow sensor flow rate while in the operating position and determining a corrected effective flow area (“Cda”) of the fuel control valve. The method further includes generating Cda versus command data with the corrected Cda and the operating position and inserting the generated Cda versus command data into the nominal Cda versus command data set when nominal Cda versus command data is not known at the operating position.
摘要翻译： 一种用于在低流量条件下控制燃气涡轮发动机燃料控制阀的方法包括将燃料控制阀定位在操作位置。 该方法还包括在操作位置确定燃料控制阀流量传感器流量并确定燃料控制阀的校正有效流动面积（“Cda”）。 该方法还包括：当在操作位置处未知名义Cda对命令数据时，产生具有校正Cda和操作位置的Cda与命令数据，并将生成的Cda与命令数据插入到标称Cda对命令数据集中。
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公开(公告)号：US20140290262A1
公开(公告)日：2014-10-02
申请号：US13852797
申请日：2013-03-28
IPC分类号： F02C9/32
CPC分类号： F02C9/32
摘要： A method for controlling a gas turbine engine fuel control valve during low flow conditions includes positioning the fuel control valve in an operating position. The method also includes determining a fuel control valve flow sensor flow rate while in the operating position and determining a corrected effective flow area (“Cda”) of the fuel control valve. The method further includes generating Cda versus command data with the corrected Cda and the operating position and inserting the generated Cda versus command data into the nominal Cda versus command data set when nominal Cda versus command data is not known at the operating position.
摘要翻译： 一种用于在低流量条件下控制燃气涡轮发动机燃料控制阀的方法包括将燃料控制阀定位在操作位置。 该方法还包括在操作位置确定燃料控制阀流量传感器流量并确定燃料控制阀的校正有效流动面积（“Cda”）。 该方法还包括：当在操作位置处未知名义Cda对命令数据时，产生具有校正Cda和操作位置的Cda与命令数据，并将生成的Cda与命令数据插入到标称Cda对命令数据集中。
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公开(公告)号：US20140290261A1
公开(公告)日：2014-10-02
申请号：US13852691
申请日：2013-03-28
IPC分类号： F02C9/26
CPC分类号： F02C9/263
摘要： A method for operating a gas turbine engine fuel system with a fuel control valve is disclosed. The method includes metering fuel through the fuel control valve with an effective flow area versus command data set. The method also includes detecting that a change in an effective flow area of the fuel control valve has occurred. The method further includes modifying the effective flow area versus command data set to reflect the detected change in the effective flow area of the fuel control valve.
摘要翻译： 公开了一种用于操作具有燃料控制阀的燃气涡轮发动机燃料系统的方法。 该方法包括通过燃料控制阀计量具有有效流动面积与命令数据集合的燃料。 该方法还包括检测燃料控制阀的有效流动面积的变化已经发生。 该方法还包括修改有效流动面积与指令数据组的比较，以反映检测到的燃料控制阀的有效流动面积的变化。
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公开(公告)号：US09732961B2
公开(公告)日：2017-08-15
申请号：US14701413
申请日：2015-04-30
CPC分类号： F23R3/28 , F23N1/002 , F23N2021/10 , F23N2025/06 , F23N2025/20 , F23N2041/20
摘要： A method for determining an estimate of the specific gravity of a fuel for a gas turbine engine is disclosed. The gas turbine engine includes a fuel control valve and one or more fuel injectors. The method includes determining a first estimate of the specific gravity based on an orifice flow model of the fuel control valve. The method also includes determining a second estimate of the specific gravity based on a combined orifice flow model of the one or more fuel injectors. The method further includes recursively filtering the first estimate and the second estimate to determine a third estimate of the specific gravity.
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公开(公告)号：US20160320061A1
公开(公告)日：2016-11-03
申请号：US14701413
申请日：2015-04-30
IPC分类号： F23R3/28
CPC分类号： F23R3/28 , F23N1/002 , F23N2021/10 , F23N2025/06 , F23N2025/20 , F23N2041/20
摘要： A method for determining an estimate of the specific gravity of a fuel for a gas turbine engine is disclosed. The gas turbine engine includes a fuel control valve and one or more fuel injectors. The method includes determining a first estimate of the specific gravity based on an orifice flow model of the fuel control valve. The method also includes determining a second estimate of the specific gravity based on a combined orifice flow model of the one or more fuel injectors. The method further includes recursively filtering the first estimate and the second estimate to determine a third estimate of the specific gravity.
摘要翻译： 公开了一种用于确定燃气涡轮发动机的燃料的比重的估计的方法。 燃气涡轮发动机包括燃料控制阀和一个或多个燃料喷射器。 该方法包括基于燃料控制阀的孔流动模型来确定比重的第一估计。 该方法还包括基于一个或多个燃料喷射器的组合孔流动模型来确定比重的第二估计。 该方法还包括递归过滤第一估计和第二估计以确定比重的第三估计。
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公开(公告)号：US20150276548A1
公开(公告)日：2015-10-01
申请号：US14242583
申请日：2014-04-01
CPC分类号： G01M13/00 , G01M13/026 , G01M15/14
摘要： A method for monitoring a condition of an actuator for a machine using a closed loop Hammerstein model structure is disclosed. The method includes receiving measured data for the machine and determining an actuator command associated with the measured data. The method also includes identifying a current static nonlinearity using one or more linear regression techniques, where the static nonlinearity is modeled between a known actuator and a linear plant of the machine. The method further includes determining whether the condition of the actuator has changed by comparing a resultant from identifying the current static nonlinearity with information of the known actuator.
摘要翻译： 公开了一种使用闭环Hammerstein模型结构监视机器致动器的状态的方法。 该方法包括接收机器的测量数据并确定与测量数据相关联的致动器命令。 该方法还包括使用一种或多种线性回归技术识别当前静态非线性，其中静态非线性在机器的已知致动器和线性工厂之间建模。 该方法还包括通过将从当前静态非线性的识别结果与已知致动器的信息进行比较来确定致动器的状况是否已改变。
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7.发明申请公开(公告)号：US20140294559A1
公开(公告)日：2014-10-02
申请号：US13852292
申请日：2013-03-28
IPC分类号： F02C9/26
摘要： A method for operating a gas turbine engine is disclosed. The method includes determining whether the gas turbine engine fuel system is in a steady state mode or a transient mode. The method also includes modifying the gas turbine engine power output by modifying a pressure set point of the fuel system while maintaining a fuel control valve in a steady state when in the steady state mode. The method further includes modifying the gas turbine engine output by modifying the position of the fuel control valve while maintaining the pressure set point of the fuel system constant when in the transient mode.
摘要翻译： 公开了一种操作燃气涡轮发动机的方法。 该方法包括确定燃气涡轮发动机燃料系统是处于稳态模式还是瞬态模式。 该方法还包括通过在处于稳态模式时将燃料控制阀保持在稳定状态的同时修改燃料系统的压力设定点来修改燃气涡轮发动机功率输出。 该方法还包括通过改变燃料控制阀的位置来改变燃气涡轮发动机输出，同时在瞬态模式下维持燃料系统的压力设定点恒定。
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