公开(公告)号：US06302649B1

公开(公告)日：2001-10-16

申请号：US09411103

申请日：1999-10-04

申请人： Charles Gitahi Mukira ,  Melvin Robert Jackson ,  Aaron Todd Frost ,  Adrian Maurice Beltran

发明人： Charles Gitahi Mukira ,  Melvin Robert Jackson ,  Aaron Todd Frost ,  Adrian Maurice Beltran

IPC分类号： F01D900

CPC分类号： C22C19/055 ,  B23K35/304 ,  C22C19/056 ,  F01D5/28 ,  F01D5/3061 ,  F05C2201/90 ,  F05D2200/11 ,  F05D2230/23 ,  F05D2230/80 ,  Y02T50/67 ,  Y02T50/671 ,  Y02T50/673 ,  Y10T29/49318 ,  Y10T29/49337 ,  Y10T428/12944

摘要： A solid-solution strengthened superalloy weld composition, includes: about 0 to about 10 wt % Co; about 18 to about 22 wt % Cr; about 0.2 to about 0.7 wt % Al; about 15 to about 28 wt % of the sum of refractory elements; up to about 0.09 wt % C; up to about 0.06 wt % Zr; up to about 0.015 wt % B; about 0.4 to about 1.2 wt % Mn; about 0.2 to about 0.45 wt % Si; and balance Ni.

摘要翻译： 固溶强化的超合金焊接组合物包括：约0至约10重量％的Co;约18至约22重量％的Cr;约0.2至约0.7重量％的Al;约15至约28重量％的耐火材料之和 元素;至多约0.09重量％C;至多约0.06重量％的Zr;至多约0.015重量％的B;约0.4至约1.2重量％的Mn;约0.2至约0.45重量％的Si; 平衡Ni。

公开(公告)号：US06233917B1

公开(公告)日：2001-05-22

申请号：US09288752

申请日：1999-04-08

申请人： Siegfried Bähr ,  Thomas Pfuff

发明人： Siegfried Bähr ,  Thomas Pfuff

IPC分类号： B01F302

CPC分类号： G05D23/1902 ,  F02C7/047 ,  F02M31/04 ,  F05D2200/11 ,  Y02T10/126

摘要： A method of controlling the temperature of intake air provided from outside air passing through an air-feed system only utilizes an especially low heating of the intake air while at the same time safely avoiding the formation of ice in the intake air, in order to avoid efficiency losses. A temperature setpoint formed by the sum of the dew point of the outside air and an additive margin of safety is preselected for the intake air. A temperature setpoint of not more than the sum of 0° C. and the margin of safety is advantageously preselected. A temperature-control device for carrying out the method and a gas turbine having the temperature-control device are also provided.

摘要翻译： 控制从通过供气系统的外部空气提供的进气的温度的方法仅利用进气特别低的加热，同时安全地避免进气中的冰的形成，以避免 效率损失。 对于进气，预先选定由外部空气的露点和安全附加余量之和构成的温度设定点。 有利地预先选择不超过0℃和安全边缘的温度设定点。 还提供了一种用于执行该方法的温度控制装置和具有温度控制装置的燃气轮机。

公开(公告)号：US6065451A

公开(公告)日：2000-05-23

申请号：US920088

申请日：1997-08-26

申请人： Ivan Pierre Lebrun

发明人： Ivan Pierre Lebrun

IPC分类号： F02C9/26 ,  F02C9/38 ,  H01F7/13 ,  F02M37/04

CPC分类号： H01F7/13 ,  F02C9/263 ,  F02C9/38 ,  F05D2200/11

摘要： A control arrangement for a fuel system having a fuel pump (13) for supplying fuel through a variable orifice flow metering valve (15) to an engine main fuel control (45), the control (45) controlling the fuel pressure differential across the orifice of the metering valve (15). A head sensor includes a movable diaphragm (51), a bypass valve (47) for diverting fuel from the fuel pump away from the metering valve (15), and a coupling between the diaphragm (51) and the bypass valve (47) whereby the bypass valve (47) opens and closes in response to diaphragm (51) motion. The metering valve orifice fuel pressure differential is applied across the diaphragm (51) so that a valve spool (55) may open and close to maintain the pressure differential across the metering valve (15) substantially constant. A bias spring (54) normally biases the spool (55) closed. An electrically variable bias force may be applied to the diaphragm (51) to selectively increase or decrease the normally maintained pressure differential across the metering valve (15) and, therefore, also selectively increase or decrease the fuel flow to the engine. The electrically variable bias force is applied by a linear actuator (50, 80) which includes a helical actuating coil (61, 77), a rod (63; 79a,b,c) extending through the helical coil (61, 77) and a permanent magnet (59;73, 75) fixed to the rod (63; 79a,b,c) and spaced axially from the coil (61, 77). When an energizing current is supplied to the coil (61, 77), force is applied to the magnet (59;73, 75) which is generally proportional to the distance between the coil (61, 77) and the magnet (59;73, 75). A second force is also applied to the rod (63; 79a,b,c) and is generally proportional to rod position. The resultant of the two forces is substantially independent of the spacing between the coil (61, 77) and the permanent magnet (59;73, 75). When two magnets (73, 75) are used, the sum of the two distances from the coil (77) to the magnets (73, 75) is maintained constant.

公开(公告)号：US5984631A

公开(公告)日：1999-11-16

申请号：US983361

申请日：1998-04-10

申请人： Sokrates Tolgos

发明人： Sokrates Tolgos

IPC分类号： F01D5/14 ,  F01D9/04

CPC分类号： F01D5/142 ,  F01D5/146 ,  F05D2200/11 ,  Y02T50/671 ,  Y02T50/673

摘要： A tandem turbine-blade cascade for a turbine, turbo-engine or power engine includes at least two rows of blades disposed substantially directly in line with one another in the rotor or stator. The second row of blades has a larger number of blades than the first row of blades and the second row of blades are distributed nonuniformly. The spacing (s.sub.1) between two blades of the first row of blades is substantially equal to the sum (s.sub.2) of two successive blade spacings (s.sub.12, s.sub.22) in the second row of blades and the distribution quotient (s.sub.12 /s.sub.22) of the blade spacings in the second row is in the range between 0.4 and 1.0.

摘要翻译： PCT No.PCT / EP96 / 03039 Sec。 371日期：1998年4月10日 102（e）1998年4月10日PCT PCT 1996年7月11日PCT公布。 出版物WO97 / 04217 日期1997年2月6日用于涡轮机，涡轮发动机或动力发动机的串联涡轮叶片级联包括在转子或定子中基本上直接彼此成直线设置的至少两排叶片。 第二排叶片具有比第一排叶片更多的叶片数量，并且第二排叶片分布不均匀。 第一排叶片的两个叶片之间的间隔（s1）基本上等于第二排叶片中两个连续叶片间隔（s12，s22）的和（s2）和第二排叶片的分布商（s12 / s22） 第二排的叶片间距在0.4和1.0之间的范围内。

公开(公告)号：US5456425A

公开(公告)日：1995-10-10

申请号：US147591

申请日：1993-11-04

申请人： Joseph W. Morris ,  Russell W. Carlson ,  Kevin L. Peterson ,  Edward M. Reich

发明人： Joseph W. Morris ,  Russell W. Carlson ,  Kevin L. Peterson ,  Edward M. Reich

IPC分类号： F02K9/80 ,  F02K9/86 ,  F02K9/88 ,  F02K9/97 ,  F42B15/00

CPC分类号： F02K9/86 ,  F02K9/805 ,  F02K9/88 ,  F02K9/97 ,  F05D2200/11 ,  F05D2220/00 ,  F05D2260/99

摘要： A rocket motor assembly is provided with multiple pintle nozzles and a controller for adjusting the pintle position in the nozzles to generate a thrust differential, while maintaining the combustion pressure at equilibrium pressure by maintaining the sum of the throat areas of all of the pintle nozzles constant, for example. In this manner, proportional thrust control and very high response times are achieved. The controller also includes a pressure correction circuit that senses any difference between the actual combustion chamber pressure and the selected equilibrium pressure upon which the thrust differential was based, converts that to an error value, and sends a command signal to each pintle actuator so that each pintle position is adjusted an equal amount to compensate for the sensed pressure difference and maintain the combustion chamber pressure at the selected equilibrium pressure.

摘要翻译： 火箭发动机组件设置有多个枢轴喷嘴和控制器，用于调节喷嘴中的枢轴位置以产生推力差，同时通过保持所有枢轴喷嘴的喉部面积的总和恒定，将燃烧压力保持在平衡压力 ， 例如。 以这种方式，实现了比例推力控制和非常高的响应时间。 该控制器还包括压力校正电路，该电压检测实际燃烧室压力与推力差异所基于的所选择的平衡压力之间的任何差异，将其转换为误差值，并将命令信号发送到每个枢轴致动器，使得每个 枢转位置被调整为相等的量以补偿感测到的压差，并将燃烧室压力保持在选定的平衡压力。

公开(公告)号：US5252860A

公开(公告)日：1993-10-12

申请号：US886294

申请日：1992-05-21

申请人： William L. McCarty ,  Kermit R. Wescott

发明人： William L. McCarty ,  Kermit R. Wescott

IPC分类号： F02C9/28 ,  H02J3/46 ,  F02C9/16

CPC分类号： F02C9/28 ,  H02J3/46 ,  F05D2200/11 ,  F05D2270/042 ,  F05D2270/044

摘要： Method and apparatus for controlling fuel flow in a combustion turbine, wherein a load signal representative of the load on the combustion turbine is given, are shown to include fuel flow device for regulating the flow of fuel in the combustion turbine in response to a control signal, a controller for generating a control signal representative of the difference between the load signal and a limit signal and for providing the control signal to the fuel flow device and a limit signal generator for generating the limit signal so that the limit signal is representative of the sum of the load signal and a maximum instantaneous load value, wherein the limiting means varies the limit signal over time from a first value to the sum.

摘要翻译： 用于控制燃气轮机中的燃料流量的方法和装置，其中给出了表示燃气轮机上的负载的负载信号，其包括用于响应于控制信号调节燃烧涡轮机中的燃料流的燃料流量装置 控制器，用于产生表示负载信号和极限信号之间的差异的控制信号，并用于向燃料流动装置提供控制信号;以及限制信号发生器，用于产生限制信号，使得限制信号代表 负载信号和最大瞬时负载值之和，其中限制装置随时间将限制信号从第一值改变到和。

公开(公告)号：US4655034A

公开(公告)日：1987-04-07

申请号：US683886

申请日：1984-12-20

申请人： David F. Kenison ,  David G. Lynn

发明人： David F. Kenison ,  David G. Lynn

IPC分类号： F02C9/18 ,  F04D27/02

CPC分类号： F02C9/18 ,  F04D27/0223 ,  F04D27/023 ,  F05D2200/11

摘要： Flexibility in the control of the compressor bleed valve is of the type utilized in a twin spool axial flow engine for preventing compressor surge is manifested by electronically summing an approximated rate of change of burner pressure that has a first order time constant introduced to actual burner pressure and a burner pressure limit that is scheduled as a function of corrected high pressure compressor speed and the altitude of the aircraft. The signal may be treated by a hysteresis circuit to stabilize the bleed valve.

摘要翻译： 压缩机放气阀的控制灵活性是用于防止压缩机喘振的双轴流轴流引擎中的类型，通过电子求和将燃烧器压力变化的近似速率与导入实际燃烧器压力的一阶时间常数 以及作为校正的高压压缩机速度和飞机高度的函数的燃烧器压力极限。 该信号可以被滞后电路处理以稳定放气阀。

公开(公告)号：US4640093A

公开(公告)日：1987-02-03

申请号：US771756

申请日：1985-09-03

申请人： James M. Eastman

发明人： James M. Eastman

IPC分类号： F02C9/26 ,  G05D7/06

CPC分类号： G05D7/0635 ,  F02C9/263 ,  F05D2200/11

摘要： A metering valve (20) for supplying a turbine engine with a fuel at a substantially constant flow rate in response to operational conditions evaluated by a computer (28). A signal from the computer (28) in the form of voltage pulses is supplied to a solenoid (30). The solenoid (30) regulates the flow of fuel from a control chamber (54) to produce a fuel pressure P.sub.x therein. The fuel enters a supply chamber (46) and the fuel pressure P.sub.1 thereof acts on the effective area of a first diaphragm (42) to move face (70) on plunger (68) away from seat (38) in opposition to a closing force generated by the fluid pressure P.sub.x acting on a second diaphragm (48). A feedback valve (90) regulates the flow of fuel from supply chamber (46) to control chamber (54). By making the size of the first diaphragm (42) one half the size of the second diaphragm (48) when P.sub.x is equal to one half of the sum of fuel pressures P.sub.1 and P.sub.2, an equilibrium condition exists and fuel is supplied to the outlet conduit (40) at a substantially constant rate for distribution to a turbine engine.

摘要翻译： 一种计量阀（20），用于响应于由计算机（28）评估的操作条件，以基本恒定的流量向涡轮发动机供应燃料。 来自计算机（28）的以电压脉冲形式的信号被提供给螺线管（30）。 螺线管（30）调节来自控制室（54）的燃料流，以在其中产生燃料压力Px。 燃料进入供应室（46），其燃料压力P1作用在第一隔膜（42）的有效区域上，以使活塞（68）上的面（70）远离座位（38），与封闭力 由作用在第二隔膜（48）上的流体压力Px产生。 反馈阀（90）调节从供应室（46）到控制室（54）的燃料流。 当Px等于燃料压力P1和P2的总和的一半时，通过使第一隔膜（42）的尺寸成为第二隔膜（48）的尺寸的一半，存在平衡条件并且燃料被供应到出口 导管（40）以基本上恒定的速率分配到涡轮发动机。

公开(公告)号：US4577281A

公开(公告)日：1986-03-18

申请号：US562378

申请日：1983-12-16

申请人： James M. Bukowski ,  Gary E. Midock ,  Ronald J. Walko

发明人： James M. Bukowski ,  Gary E. Midock ,  Ronald J. Walko

IPC分类号： F01D17/24 ,  F01D17/02

CPC分类号： F01D17/24 ,  F05D2200/11

摘要： A microprocessor-based controller for an extraction type steam turbine-generator unit capable of selecting from a variety of predetermined control strategies and implementing corresponding valve position control loops by generating appropriate valve position control signals in accordance with operator-chosen setpoint signals and turbine operating level signals. In a particular control strategy, automatic compensation of megawatt output is achieved during the extraction mode of turbine operation by summing a megawatt setpoint signal from a feedback loop with a feedforward extraction valve setpoint signal and a megawatt reference signal, which sum is then applied to the turbine control valves to enable tight megawatt control during the extraction operation.

摘要翻译： 一种用于提取型蒸汽轮机 - 发电机单元的基于微处理器的控制器，其能够根据各种预定的控制策略进行选择并通过根据操作者选择的设定点信号和涡轮机运行等级产生适当的阀位控制信号来实现相应的阀位控制回路 信号。 在特定的控制策略中，通过将来自反馈回路的兆瓦设定点信号与前馈提取阀设定点信号和兆瓦参考信号相加，在涡轮机运行的提取模式期间实现兆瓦输出的自动补偿，然后该和应用于 涡轮控制阀，以在提取操作期间实现严格的兆瓦控制。

公开(公告)号：US4556956A

公开(公告)日：1985-12-03

申请号：US533644

申请日：1983-09-16

申请人： Royston J. Dickenson ,  Vijay C. Jaswa

发明人： Royston J. Dickenson ,  Vijay C. Jaswa

IPC分类号： F01D17/00 ,  F01D17/24 ,  G05B11/42 ,  G05B13/00 ,  G05B13/02 ,  G05D7/06 ,  G05B13/04

CPC分类号： G05D7/0635 ,  F01D17/24 ,  G05B11/42 ,  F05D2200/11

摘要： An adjustable gain controller for a steam turbine valve position control loop includes an electronic operator, a proportional controller, a derivative controller and an integral controller. A steam flow condition error signal is amplified by the reciprocal of the valve's regulation value. The amplified error signal is supplied to the electronic operator and to the integral controller. The electronic operator includes means for initially selecting a value of A and n and generating a gain factor from a nonlinear gain characteristic function utilizing those values in combination with the valve's regulation value and the normalized error signal. The electronic operator multiplies the amplified error signal by the gain factor and applies the resultant signal to the proportional controller and the derivative controller. The output signals from the proportional, derivative and integral controllers are summed together and that sum is input into an electrohydraulic valve actuator system. The electrohydraulic valve actuator directly positions the steam valve. Hydraulic and mechanical jitter is reduced by adjusting the values of A and n to reduce the jitter in the electrohydraulic valve actuator system.

摘要翻译： 用于蒸汽涡轮阀位置控制回路的可调增益控制器包括电子操作器，比例控制器，微分控制器和积分控制器。 蒸汽流量状态误差信号通过阀门调节值的倒数放大。 放大的误差信号被提供给电子操作器和积分控制器。 电子操作员包括用于初始选择A和n的值的装置，并且利用这些值结合阀的调节值和归一化误差信号从非线性增益特征函数产生增益因子。 电子操作者将放大的误差信号乘以增益因子，并将结果信号施加到比例控制器和微分控制器。 比例，微分和积分控制器的输出信号相加在一起，并将该和信号输入到电液阀执行器系统中。 电动液压阀执行器直接定位蒸汽阀。 通过调节A和n的值来降低液压和机械抖动，以减少电动液压阀执行器系统的抖动。