Compressor vane control for gas turbine engines
    71.
    发明授权
    Compressor vane control for gas turbine engines 失效
    燃气轮机发动机的压缩机叶片控制

    公开(公告)号:US5357748A

    公开(公告)日:1994-10-25

    申请号:US973440

    申请日:1992-11-09

    申请人: Syed J. Khalid

    发明人: Syed J. Khalid

    IPC分类号: F02C9/54 F04D27/02 F02C9/20

    摘要: In a gas turbine engine a method for thrust variation with reduced compressor RPM excursion is provided in two modes which includes adjusting pivotable compressor vanes mounted upstream of compressor rotor blades, ahead of the conventional vane schedule therefor in a closed loop fashion, responsive to compressor corrected RPM, so as to adjust the fuel demand and engine thrust thereof while maintaining relatively high scheduled compressor corrected RPM scheduled as a function of fan corrected RPM while retaining the conventional method of fuel flow scheduling. Thus mode 1 of the invention adjusts the compressor vanes in advance of the conventional schedule therefor, e.g. pre-closes them on the deceleration side of the Bodie transient and appropriately opens them on the acceleration side of such transient subject to closed loop monitoring of the corrected compressor RPM and being guided thereby so as to result in reduced excursion in such RPM, during both legs of such transient. Because of such reduced RPM excursion, fast changes in engine thrust are possible. In mode 2 of the invention, snap accelerations of a gas turbine engine and its compressor, are assisted by opening the compressor vanes ahead of the conventional schedule therefor in an open loop fashion, not so much for compressor corrected RPM excursion advantage as for improved compressor stall margin. The methods of the invention thus emphasize the primacy of vane control over fuel flow control for reduced compressor RPM excursion in the first mode and increased stall margin in the second mode.

    摘要翻译: 在燃气涡轮发动机中,具有减小的压缩机RPM偏移的推力变化的方法被提供在两种模式中,其包括调节安装在压缩机转子叶片上游的可枢转的压缩机叶片,在常规叶片计划之前以闭环方式响应于压缩机校正 以便调整燃料需求和发动机推力,同时保持作为风扇校正RPM的函数的相对高的预定压缩机校正RPM,同时保持常规的燃料流调度方法。 因此,本发明的模式1可以按照常规的日程安排来调节压缩机叶片,例如。 在Bodie瞬态的减速侧预先关闭它们,并在这种瞬态的加速侧上适当地打开它们,以对已校正的压缩机RPM进行闭环监测并由其引导,以便在两者期间在这种RPM中导致减小的偏移 这种短暂的腿。 由于这种减小的RPM偏移,发动机推力的快速变化是可能的。 在本发明的模式2中,燃气涡轮发动机及其压缩机的卡扣加速度通过以开环方式打开压缩机叶片,而不是以压缩机校正的RPM偏移优点为前提,以改进压缩机 摊位边缘。 因此,本发明的方法强调了叶片控制对燃料流量控制的优先性,用于在第一模式中降低的压缩机RPM偏移,并且在第二模式中增加了失速裕度。

    Active geometry control system for gas turbine engines
    73.
    发明授权
    Active geometry control system for gas turbine engines 失效
    燃气轮机发动机主动几何控制系统

    公开(公告)号:US4947643A

    公开(公告)日:1990-08-14

    申请号:US246765

    申请日:1988-09-20

    摘要: An active control system for use in gas turbine engines synchronizes exhaust nozzle area and burner fuel flow together with pas path variable engine parameters, such as fan variable vane and high compressor variable vane positions. As a result, extremely fast thrust transients are possible with optimized compression system stability, since fan and compressor rotor speeds are held high, allowing total engine power to be controlled by air flow and fuel flows directly.

    摘要翻译: 用于燃气涡轮发动机的主动控制系统将排气喷嘴区域和燃烧器燃料流与pas路径可变发动机参数(诸如风扇可变叶片和高压缩机可变叶片位置)同步。 因此,由于风机和压缩机的转子转速保持较高,所以压缩系统的稳定性极佳,因此可以实现非常快的推力瞬变,从而允许通过气流和燃料直接控制总发动机功率。

    Control of high compressor vanes and fuel for a gas turbine engine
    74.
    发明授权
    Control of high compressor vanes and fuel for a gas turbine engine 失效
    控制用于燃气轮机的高压缩机叶片和燃料

    公开(公告)号:US4928482A

    公开(公告)日:1990-05-29

    申请号:US246728

    申请日:1988-09-20

    摘要: The time responsiveness and engine stability for an acceleration and deceleration engine transient is enhanced by a control mechanism that synchronously adjusts fuel flow and high pressure compressor vane position as a function of corrected low pressure compressor speed in a twin spool axial flow turbine power plant. The acceleration and deceleration mode is targeted by power lever position and the target is attained by adjusting the vane position at a constant high pressure compressor speed and returned to a fuel efficient and engine stable steady state operating line by concomittantly adjusting fuel flow and vane position.

    摘要翻译: 加速和减速发动机瞬态的时间响应和发动机稳定性通过一个控制机构得到增强,该控制机构可同时调整燃油流量和高压压缩机叶片位置,作为双轴流轴式涡轮发电厂中校正的低压压缩机转速的函数。 加速和减速模式由动力杆位置定位,目标通过以恒定的高压压缩机转速调节叶片位置,并通过调节燃油流量和叶片位置返回到燃油效率和发动机稳定的稳态操作线。

    Demand control of variable geometry gas turbine power plant
    75.
    发明授权
    Demand control of variable geometry gas turbine power plant 失效
    可变几何燃气轮机发电厂的需求控制

    公开(公告)号:US4813226A

    公开(公告)日:1989-03-21

    申请号:US2070

    申请日:1987-01-12

    IPC分类号: F02C9/50 F02C9/54 F02C9/00

    CPC分类号: F02C9/50 F02C9/54

    摘要: In a gas turbine power plant system having an engine of the variable geometry type, the variable geometry is controlled in response to an input demand speed signal rather than a signal representing actual engine speed. The geometry which may be varied may take many forms depending on engine design, including variable compressor guide vanes, variable turbine nozzle area or variable engine exhaust nozzle area.

    摘要翻译: 在具有可变几何类型的发动机的燃气轮机发电厂系统中,响应于输入需求速度信号而不是表示实际发动机转速的信号来控制可变几何形状。 可以变化的几何形状可以取决于发动机设计,包括可变压缩机导向叶片,可变涡轮喷嘴面积或可变的发动机排气喷嘴区域,可以是多种形式。

    Rapid power response turbine
    76.
    发明授权
    Rapid power response turbine 失效
    快速功率响应涡轮机

    公开(公告)号:US4529887A

    公开(公告)日:1985-07-16

    申请号:US506085

    申请日:1983-06-20

    摘要: In one form of the invention, means are provided for sensing changes in electrical power demanded from an electrical generator driven by a gas turbine engine. In response, other means change the rate of fuel and air delivery to the engine in proportion to the demand changes and keep the combustor fuel-air ratio substantially constant.

    摘要翻译: 在本发明的一种形式中,提供了用于感测由燃气涡轮发动机驱动的发电机所要求的电力的变化的装置。 作为响应,其他方式根据需求变化来改变向发动机的燃料和空气输送的速率,并且保持燃烧室燃料 - 空气比基本上恒定。

    Cyclic load duty control for gas turbine
    77.
    发明授权
    Cyclic load duty control for gas turbine 失效
    燃气轮机循环负荷控制

    公开(公告)号:US4406117A

    公开(公告)日:1983-09-27

    申请号:US246689

    申请日:1981-03-23

    IPC分类号: F02C9/54 F02C9/48

    CPC分类号: F02C9/54

    摘要: A gas turbine control for ameliorating the adverse affects of cyclic load applications to both single-shaft and two-shaft gas turbines is disclosed. During cyclic load conditions, air flow is governed to control the output of the gas turbine while fuel flow is controlled to hold the firing or exhaust temperatures substantially constant. Regular fuel flow governing during non-cyclic loading conditions is also provide

    摘要翻译: 公开了一种用于改善单轴和双轴燃气轮机的循环负载应用的不利影响的燃气轮机控制。 在循环负载条件下,控制气流