GAS TURBINE ENGINE COMPRESSORS HAVING OPTIMIZED STALL ENHANCEMENT FEATURE CONFIGURATIONS AND METHODS FOR THE PRODUCTION THEREOF
    81.
    发明申请
    GAS TURBINE ENGINE COMPRESSORS HAVING OPTIMIZED STALL ENHANCEMENT FEATURE CONFIGURATIONS AND METHODS FOR THE PRODUCTION THEREOF 有权
    具有优化强化特征的燃气发动机发动机压缩机特征及其生产方法

    公开(公告)号:US20160222973A1

    公开(公告)日:2016-08-04

    申请号:US14612404

    申请日:2015-02-03

    摘要: Multistage gas turbine engine (GTE) compressors having optimized stall enhancement feature (SEF) configurations are provided, as are methods for the production thereof. The multistage GTE compressor includes a series of axial compressor stages each containing a rotor mounted to a shaft of a gas turbine engine. In one embodiment, the method includes the steps or processes of selecting a plurality of engine speeds distributed across an operational speed range of the gas turbine engine, identifying one or more stall limiting rotors at each of the selected engine speeds, establishing an SEF configuration in which SEFs are integrated into the multistage GTE compressor at selected locations corresponding to the stall limiting rotors, and producing the multistage GTE compressor in accordance with the optimized SEF configuration.

    摘要翻译: 提供具有优化的失速增强特征(SEF)构造的多级燃气轮机(GTE)压缩机,以及用于生产它的方法。 多级GTE压缩机包括一系列轴向压缩机级,每个轴向压缩机级包含安装在燃气涡轮发动机的轴上的转子。 在一个实施例中,该方法包括选择分布在燃气涡轮发动机的运行速度范围内的多个发动机转速的步骤或过程,在每个所选择的发动机转速下识别一个或多个失速限制转子,建立SEF配置 在对应于失速限制转子的选定位置将多个SEF集成到多级GTE压缩机中,并根据优化的SEF配置生产多级GTE压缩机。

    Method for controlling a turbocompressor
    82.
    发明授权
    Method for controlling a turbocompressor 有权
    用于控制涡轮压缩机的方法

    公开(公告)号:US09347454B2

    公开(公告)日:2016-05-24

    申请号:US12522695

    申请日:2008-05-07

    IPC分类号: F04B49/02 F04D27/02

    CPC分类号: F04D27/0292 F04D27/0261

    摘要: Method for controlling a turbocompressor, whereby a compressed air line (5) is connected to this turbocompressor (1) with a non-return valve (6) provided therein, characterised in that, when one or several process parameters exceed a predetermined limit, the rotational speed of the turbocompressor (1) will be reduced very suddenly to a predetermined minimum rotational speed and the above-mentioned non-return valve (6) will be closed and in that, after the above-mentioned reduction of the rotational speed, when one or several gear-down conditions are fulfilled, the rotational speed of the compressor (1) will be increased again and the non-return valve (6) will be opened.

    摘要翻译: 一种用于控制涡轮压缩机的方法,其中压缩空气管线(5)通过设置在其中的止回阀(6)连接到该涡轮压缩机(1),其特征在于,当一个或几个过程参数超过预定极限时, 涡轮压缩机(1)的转速将非常突然地降低到预定的最小转速,并且上述止回阀(6)将被关闭,并且在上述转速降低之后,当 一个或几个减速条件被满足,压缩机(1)的转速将再次增加,止回阀(6)将被打开。

    Compressor surge control system and method
    84.
    发明授权
    Compressor surge control system and method 有权
    压缩机浪涌控制系统及方法

    公开(公告)号:US09328949B2

    公开(公告)日:2016-05-03

    申请号:US13255932

    申请日:2010-03-29

    IPC分类号: F04D27/02 F25B49/02 F04D27/00

    摘要: A system and method for controlling gas surges in compressors powered by electric motors. An adjustable speed drive (ASD) incorporating a microprocessor powered by a three-phase source of electricity controls the electric motor which drives the compressor. A bypass valve is inserted between the gas input of the compressor and the gas discharge. The bypass valve opens in response to signals from the ASD which detects gas surges by analyzing a stored surge map which plots a surge line and a related discretionary control line based on the power and speed of the motor. When the operating point of the motor crosses the control line, the ASD causes the bypass valve to open.

    摘要翻译: 一种用于控制由电动机驱动的压缩机中的气体浪涌的系统和方法。 包含由三相电源供电的微处理器的可调节速度驱动器(ASD)控制驱动压缩机的电动机。 旁通阀插入在压缩机的气体输入端和气体放电之间。 旁路阀响应来自ASD的信号而打开,该信号通过分析基于马达的功率和速度来绘制喘振线和相关的自由控制线的存储的喘振图来检测气体浪涌。 当电机的工作点越过控制线时,ASD使旁通阀打开。

    Model-Based Optimal Control For Stall Margin Limit Protection in an Aircraft Engine
    87.
    发明申请
    Model-Based Optimal Control For Stall Margin Limit Protection in an Aircraft Engine 有权
    基于模型的最优控制飞机发动机失速保护限制

    公开(公告)号:US20150345403A1

    公开(公告)日:2015-12-03

    申请号:US14623063

    申请日:2015-02-16

    IPC分类号: F02C9/00 F01D17/00

    摘要: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a hybrid model predictive control (HMPC) module, the HMPC module receiving power goals and operability limits and determining a multi-variable control command for the gas turbine engine, the multi-variable control command determined using the power goals, the operability limits, actuator goals, sensor signals, and synthesis signals. The control system may further include system sensors for determining the sensor signals and a non-linear engine model for estimating corrected speed signals and synthesis signals using the sensor signals, the synthesis signals including an estimated stall margin remaining. The control system may further include a goal generation module for determining actuator goals for the HMPC module using the corrected speed signals and an actuator for controlling the gas turbine engine based on the multivariable control command.

    摘要翻译: 公开了一种燃气轮机的控制系统,燃气轮机的控制方法和燃气轮机。 控制系统可以包括混合模型预测控制(HMPC)模块,HMPC模块接收功率目标和可操作性限制,并且确定用于燃气涡轮发动机的多变量控制命令,使用功率目标确定的多变量控制命令, 可操作性限制,执行器目标,传感器信号和合成信号。 控制系统还可以包括用于确定传感器信号的系统传感器和用于使用传感器信号估计校正的速度信号和合成信号的非线性发动机模型,所述合成信号包括剩余的估计失速余量。 控制系统还可以包括目标产生模块,用于使用校正的速度信号确定HMPC模块的致动器目标,以及基于多变量控制命令来控制燃气涡轮发动机的致动器。

    Turbomachine
    88.
    发明授权
    Turbomachine 有权
    涡轮机

    公开(公告)号:US09176023B2

    公开(公告)日:2015-11-03

    申请号:US13704594

    申请日:2011-06-16

    IPC分类号: F01B25/00 G01M15/14 F04D27/00

    摘要: A method for obtaining an estimate for a process quantity of a turbomachine comprises measuring (301) first process quantities and calculating (302) an estimate for a second process quantity, for example mass flow, on the basis of the measured first process quantities and a reference table of interrelations between process quantities prevailing in reference inlet conditions corresponding to a pre-defined inlet fluid temperature, a pre-defined inlet fluid pressure, and pre-defined fluid properties at the inlet. The reference table and the measured first process quantities represent such a set of data values that the estimate is obtainable on the basis of different sub-sets of the data values. Hence, the estimation task is over-posed in the sense that there is more data than necessary for obtaining the estimate. In the calculation of the estimate, more weight is given to such a part of the data which has a smaller error contribution.

    摘要翻译: 用于获得涡轮机的处理量的估计的方法包括:测量(301)第一处理量并基于所测量的第一处理量计算(302)第二处理量(例如质量流)的估计,以及 在参考入口条件下对应于预定义的入口流体温度,预定义的入口流体压力和入口处的预定流体特性之间的处理量之间的相互关系的参考表。 参考表和测量的第一处理量表示可以基于数据值的不同子集获得估计的这样一组数据值。 因此,在获得估计所需的数据多于数据的意义上,估计任务是过度提出的。 在估计的计算中,对于具有较小误差贡献的数据的这种部分给予更多的权重。

    Gas compression
    89.
    发明授权
    Gas compression 有权
    气体压缩

    公开(公告)号:US09022747B2

    公开(公告)日:2015-05-05

    申请号:US13505861

    申请日:2010-11-12

    摘要: A method of compressing a gas, which uses a compressor train having a plurality of discrete portions and including at least an upstream portion, a mid-stream portion and a downstream portion arranged successively in flow series. The method includes: (i) performing a first compression step by directing a flow of said gas into the upstream compressor portion and driving the upstream compressor portion to compress the gas; (ii) performing a second compression step by directing the compressed flow from the upstream compressor portion into the mid-stream compressor portion and driving the mid-stream compressor portion to further compress the gas; and (iii) performing a third compression step by directing the compressed flow from the mid-stream compressor portion into the downstream compressor portion and driving the downstream compressor portion to further compress the gas.

    摘要翻译: 一种压缩气体的方法,其使用具有多个离散部分并且包括至少上游部分,中流部分和下游部分的压缩机组,所述中流部分和下游部分依次以流动方式排列。 该方法包括:(i)通过将所述气体的流动引导到上游压缩机部分中并驱动上游压缩机部分来压缩气体来执行第一压缩步骤; (ii)通过将来自上游压缩机部分的压缩流引导到中流压缩机部分中并且驱动中流压缩机部分以进一步压缩气体来执行第二压缩步骤; 和(iii)通过将来自中流压缩机部分的压缩流引导到下游压缩机部分中并且驱动下游压缩机部分进一步压缩气体来执行第三压缩步骤。

    METHOD AND APPARATUS FOR WARMING UP A VACUUM PUMP ARRANGEMENT
    90.
    发明申请
    METHOD AND APPARATUS FOR WARMING UP A VACUUM PUMP ARRANGEMENT 审中-公开
    用于加热真空泵装置的方法和装置

    公开(公告)号:US20150086387A1

    公开(公告)日:2015-03-26

    申请号:US14398119

    申请日:2013-04-24

    申请人: Edwards Limited

    IPC分类号: F04B49/02 F04B23/04 F04B49/20

    摘要: A method for warming up a vacuum pump arrangement having a booster pump and a backing pump downstream of the booster pump for evacuating a process chamber includes setting the booster pump at a first speed higher than an idle speed of the booster pump when the same is in an idle mode; and controlling a backing pressure at an outlet of the booster pump within a range from 0.1 mbar to 10 mbar at least for a period of time from when the vacuum pump arrangement is activated from the idle mode to when the booster pump reaches a temperature equal to or exceeding a first predetermined threshold value. Such method is implemented in system where a controlled is configured to carry out the above-motioned actions.

    摘要翻译: 一种用于升温真空泵装置的方法,其具有在增压泵下游的增压泵和背衬泵,用于抽空处理室包括将增压泵设定为高于增压泵的怠速的第一速度,当相同时 空闲模式; 并且在所述增压泵的出口处控制背压在0.1毫巴至10毫巴的范围内,至少在从所述真空泵装置从空转模式启动到所述增压泵达到等于 或超过第一预定阈值。 这样的方法在被配置为执行上述动作的系统中实现。