专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08688245B2 System control 有权
标题翻译：系统控制
公开(公告)号：US08688245B2
公开(公告)日：2014-04-01
申请号：US13176423
申请日：2011-07-05
申请人： Marko Bacic , Leo V Lewis
发明人： Marko Bacic , Leo V Lewis
IPC分类号： G05B13/02 , G05B13/04
CPC分类号： G05B13/041 , G05B13/048
摘要： A method of controlling a system that has a finite execution time in the optimization of a cost function: J = ∑ i = 1 N ⁢ F ⁡ ( u ⁡ ( k + i | k ) , y ⁡ ( k + i | k ) ) , where N is selected such that J is convergent; k+i is the time in the future after the passage of i time increments; u(k+i|k) and y(k+i|k) are restricted to values of the respective control variables u and performance variables y that are compatible with predetermined system operational constraints; and for each time increment i=1 . . . N, values for F(u(k+i|k), y(k+i|k)) are calculated using a system model M to determine y(k+i|k) for a plurality of respective discrete values of u(k+i|k) that are limited to and representatively sampling the range of possible values of u that are compatible with the predetermined system operational constraints, J being optimised by identifying the combination {u(k+1|k),u(k+2|k), . . . u(k+N|k)} of respective discrete values u(k+i|k) over N time increments that combination yields an optimised value for J.
摘要翻译：一种控制在成本函数优化中具有有限执行时间的系统的方法：J =Σi = 1 N F⁡（u⁡（k + i | k），y⁡（k + i | k）），其中N被选择使得J是收敛的; k + i是i时间增量通过后的时间; u（k + i | k）和y（k + i | k）被限制为与预定系统操作约束兼容的各个控制变量u和性能变量y的值; 并且对于每次增量i = 1。。。使用系统模型M来计算F（u（k + i | k），y（k + i | k），y（k + i | k））的值，以对于u的多个相应的离散值来确定y（k + i | （k + i | k），其被限制并且代表性地对与预定系统操作约束兼容的u的可能值的范围进行采样，J通过识别组合{u（k + 1 | k），u（ k + 2 | k），。。。 u（k + N | k）}的N个时间增量相应的离散值u（k + i | k），该组合产生了J.

2. 发明授权

US08721257B2 Rotor blade tip clearance control 有权
标题翻译：转子叶片顶端间隙控制
公开(公告)号：US08721257B2
公开(公告)日：2014-05-13
申请号：US13050367
申请日：2011-03-17
申请人： Leo V. Lewis , Marko Bacic
发明人： Leo V. Lewis , Marko Bacic
IPC分类号： F04D29/58
CPC分类号： F01D11/24 , F05D2240/11 , F05D2260/201 , Y02T50/676
摘要： A gas turbine engine has a row of circumferentially spaced rotor blades and a plurality of seal segments circumscribing the rotor blade tips and attached to a radially inward side of a casing of the engine. The seal segments are spaced from the casing by a spacing cavity. A flow of relatively hot cooling air is routed to the spacing cavity to cool the seal segments. The engine has an external cooling arrangement for impinging relatively cold cooling air on a radially outward side of the casing. The engine has a wall containing a plurality of through-holes which is attached to a radially inward side of the casing adjacent the seal segments. The wall is spaced from the casing to define a heating control chamber between the wall and the casing. The engine has one or more closable ducts which allow air to be exhausted from the heating control chamber.
摘要翻译：燃气涡轮发动机具有一排周向间隔开的转子叶片和围绕转子叶片尖端并附接到发动机壳体的径向内侧的多个密封段。密封段通过间隔腔与壳体间隔开。相对热的冷却空气的流动被引导到间隔空腔以冷却密封段。发动机具有外部冷却装置，用于在壳体的径向向外侧上冲击相对冷的冷却空气。发动机具有包含多个通孔的壁，其邻近密封段附接到壳体的径向向内侧。壁与壳体间隔开以在壁和壳体之间限定加热控制室。发动机具有允许空气从加热控制室排出的一个或多个可关闭的管道。

3. 发明授权

US08894358B2 Clearance control arrangement 有权
标题翻译：清关控制安排
公开(公告)号：US08894358B2
公开(公告)日：2014-11-25
申请号：US13312319
申请日：2011-12-06
申请人： Marko Bacic
发明人： Marko Bacic
IPC分类号： F01D11/20
CPC分类号： F01D11/20 , F05D2260/407
摘要： A clearance control arrangement includes first and second components defining a clearance therebetween. The first component includes a surface portion having at least a layer of material that changes thickness when actuated. The clearance control arrangement also includes an actuator to actuate the layer of material.
摘要翻译：间隙控制装置包括限定其间的间隙的第一和第二部件。第一部件包括具有至少一层材料的表面部分，其在致动时改变厚度。间隙控制装置还包括用于致动材料层的致动器。

4. 发明授权

US08794920B2 Controlling blade pitch angle 有权
标题翻译：控制叶片桨距角
公开(公告)号：US08794920B2
公开(公告)日：2014-08-05
申请号：US13034312
申请日：2011-02-24
申请人： Marko Bacic , Jonathan E. Holt
发明人： Marko Bacic , Jonathan E. Holt
IPC分类号： F01D7/02 , B64C11/30 , B64C11/44 , B64D27/00
CPC分类号： B64C11/306 , B64C11/44 , B64D2027/005 , Y02T50/66
摘要： A method and arrangement of controlling blade pitch angle of a set of rotor blades. The method comprises providing a target blade pitch angle to a controller mounted on the rotor; measuring the speed of rotation of the rotor using a rate gyro mounted on the rotor; calculating the blade pitch angle required to match the target blade pitch angle by summing the target blade pitch angle and the measured rotational speed; and actuating the blades to the calculated blade pitch angle.
摘要翻译：控制一组转子叶片叶片桨距角的方法和装置。该方法包括向安装在转子上的控制器提供目标叶片桨距角; 使用安装在转子上的速率陀螺仪来测量转子的转速; 通过将目标叶片桨距角和测量的旋转速度相加来计算与目标叶片俯仰角匹配所需的叶片桨距角; 并且将叶片致动到所计算的叶片俯仰角。

5. 发明授权

US08191409B2 Valve failure detection 有权
标题翻译：阀故障检测
公开(公告)号：US08191409B2
公开(公告)日：2012-06-05
申请号：US12822391
申请日：2010-06-24
申请人： Marko Bacic
发明人： Marko Bacic
IPC分类号： G01M15/14
CPC分类号： F16K37/0083 , F04D27/001 , F04D27/0215
摘要： A method and arrangement for detecting failure of an actuated component, particularly a valve. The method comprises determining a calibration step response and an in-use step response for the actuated component, determining any difference between the responses and comparing the difference to a pre-determined threshold indicating failure.
摘要翻译：一种用于检测致动部件，特别是阀的故障的方法和装置。该方法包括确定校准步骤响应和激活组件的使用阶段响应，确定响应之间的任何差异，并将差值与预先确定的指示故障的阈值进行比较。

6. 发明授权

US09506401B2 Method of detecting shaft break 有权
标题翻译：轴断裂检测方法
公开(公告)号：US09506401B2
公开(公告)日：2016-11-29
申请号：US13984639
申请日：2012-02-24
申请人： Marko Bacic , Stephen Granville Garner
发明人： Marko Bacic , Stephen Granville Garner
IPC分类号： F02C7/00 , F01D21/00 , F01D21/04 , F01D21/06 , G01M13/02 , G01M15/04 , G01M15/14 , G01H1/00
CPC分类号： F02C7/00 , F01D21/003 , F01D21/045 , F01D21/06 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/304 , F05D2270/335 , G01H1/006 , G01M13/02 , G01M15/046 , G01M15/14
摘要： A method of detecting shaft break in a gas turbine engine having a shaft system. The shaft system including a shaft that couples a compressor and a turbine. First construct a frequency model of the shaft system. Then determine a notch frequency and a first torsional frequency for the shaft system from the model. Then in real time measure a rotational speed of the shaft; detect the presence or absence of a feature at least one of the notch frequency and the first torsional frequency in the measured speed; and generate a shaft break signal in response to the absence of at least one of the features.
摘要翻译：一种在具有轴系的燃气轮机中检测轴断裂的方法。该轴系统包括连接压缩机和涡轮机的轴。首先构造轴系的频率模型。然后从模型中确定轴系的陷波频率和第一扭转频率。然后实时测量轴的转速; 以测量速度检测陷波频率和第一扭转频率中的至少一个的特征的存在或不存在; 并且响应于不存在至少一个特征而产生轴断裂信号。

7. 发明授权

US08943876B2 Shaft break detection 有权
标题翻译：轴断裂检测
公开(公告)号：US08943876B2
公开(公告)日：2015-02-03
申请号：US13984571
申请日：2012-02-24
申请人： Arthur Laurence Rowe , Stephen Granville Garner , Marko Bacic
发明人： Arthur Laurence Rowe , Stephen Granville Garner , Marko Bacic
IPC分类号： G01M15/14 , F02C7/00 , F01D21/00 , F01D21/04 , F01D21/06 , G01M13/02 , G01M15/04 , G01H1/00
CPC分类号： F02C7/00 , F01D21/003 , F01D21/045 , F01D21/06 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/304 , F05D2270/335 , G01H1/006 , G01M13/02 , G01M15/046 , G01M15/14
摘要： A shaft break detection system and a method of detecting shaft break for a gas turbine engine. A first indication is calculated from measured rotational speed of a shaft. A second indication is calculated from the rotational speed. A shaft break signal is generated if both indications are true.
摘要翻译：一种轴断裂检测系统和用于检测燃气涡轮发动机的轴断裂的方法。从测量的轴的转速计算第一指示。从转速计算第二指示。如果两个指示都为真，则产生轴断裂信号。

8. 发明申请

US20130319092A1 SHAFT BREAK DETECTION 有权
标题翻译：轴检测
公开(公告)号：US20130319092A1
公开(公告)日：2013-12-05
申请号：US13984571
申请日：2012-02-24
申请人： Arthur Laurence Rowe , Stephen Granville Garner , Marko Bacic
发明人： Arthur Laurence Rowe , Stephen Granville Garner , Marko Bacic
IPC分类号： G01M15/14
CPC分类号： F02C7/00 , F01D21/003 , F01D21/045 , F01D21/06 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/304 , F05D2270/335 , G01H1/006 , G01M13/02 , G01M15/046 , G01M15/14
摘要： A shaft break detection system and a method of detecting shaft break for a gas turbine engine. A first indication is calculated from measured rotational speed of a shaft. A second indication is calculated from the rotational speed. A shaft break signal is generated if both indications are true.
摘要翻译：一种轴断裂检测系统和用于检测燃气涡轮发动机的轴断裂的方法。从测量的轴的转速计算第一指示。从转速计算第二指示。如果两个指示都为真，则产生轴断裂信号。

9. 发明申请

US20130312423A1 METHOD OF DETECTING SHAFT BREAK 有权
标题翻译：检测轴的方法
公开(公告)号：US20130312423A1
公开(公告)日：2013-11-28
申请号：US13984639
申请日：2012-02-24
申请人： Marko Bacic , Stephen Granville Garner
发明人： Marko Bacic , Stephen Granville Garner
IPC分类号： F02C7/00
CPC分类号： F02C7/00 , F01D21/003 , F01D21/045 , F01D21/06 , F05D2270/021 , F05D2270/09 , F05D2270/091 , F05D2270/304 , F05D2270/335 , G01H1/006 , G01M13/02 , G01M15/046 , G01M15/14
摘要： A method of detecting shaft break in a gas turbine engine having a shaft system. The shaft system including a shaft that couples a compressor and a turbine. First construct a frequency model of the shaft system. Then determine a notch frequency and a first torsional frequency for the shaft system from the model. Then in real time measure a rotational speed of the shaft; detect the presence or absence of a feature at at least one of the notch frequency and the first torsional frequency in the measured speed; and generate a shaft break signal in response to the absence of at least one of the features.
摘要翻译：一种在具有轴系的燃气轮机中检测轴断裂的方法。该轴系统包括连接压缩机和涡轮机的轴。首先构造轴系的频率模型。然后从模型中确定轴系的陷波频率和第一扭转频率。然后实时测量轴的转速; 在所测量的速度中，以所述陷波频率和所述第一扭转频率中的至少一个来检测特征的存在或不存在; 并且响应于不存在所述特征中的至少一个而产生轴断裂信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式