公开(公告)号：US20110268556A1

公开(公告)日：2011-11-03

申请号：US12770932

申请日：2010-04-30

申请人： Matthew D. Montgomery ,  Chander Prakash

发明人： Matthew D. Montgomery ,  Chander Prakash

IPC分类号： F04D29/58

CPC分类号： F01D5/186 ,  F05D2260/202 ,  F05D2270/172

摘要： A film cooling apparatus with a cooling hole (46) in a component wall (40). A first surface (42) of the wall is subject to a hot gas flow (48). A second surface (44) receives a coolant gas (50). The coolant flows through the hole, then downstream over the first surface (42). One or more pairs of cooperating electrodes (60-61, 62-63, 80-81) generates and accelerates a plasma (70) that creates a body force acceleration (71, 82) in the coolant flow that urges the coolant flow to turn around the entry edge (57) and/or the exit edge (58) of the cooling hole without separating from the adjacent surface (47, 42). The electrodes may have a geometry that spreads the coolant into a fan shape over the hot surface (42) of the component wall (40).

摘要翻译： 一种在组件壁（40）中具有冷却孔（46）的薄膜冷却装置。 壁的第一表面（42）经受热气流（48）。 第二表面（44）接收冷却剂气体（50）。 冷却剂流过孔，然后流过第一表面（42）的下游。 一对或多对配合电极（60-61,62-63,80-81）产生并加速等离子体（70），其产生在促使冷却剂流转向的冷却剂流中的体力加速度（71,82） 围绕冷却孔的入口边缘（57）和/或出口边缘（58），而不与相邻表面（47,42）分离。 电极可以具有将冷却剂扩散到组件壁（40）的热表面（42）上的扇形形状的几何形状。

公开(公告)号：US07870720B2

公开(公告)日：2011-01-18

申请号：US11564384

申请日：2006-11-29

申请人： Paul E. Hagseth ,  Paul D. McClure

发明人： Paul E. Hagseth ,  Paul D. McClure

IPC分类号： B63H11/00 ,  B64D33/02

CPC分类号： H05H1/54 ,  B64C23/005 ,  B64C2230/12 ,  B64D27/20 ,  B64D33/02 ,  B64D2033/0226 ,  F02C7/04 ,  F03H1/00 ,  F05D2270/172 ,  Y02T50/166 ,  Y02T50/44 ,  Y10T137/206

摘要： A method to manipulate boundary layer conditions within a ducted fluid flow is provided. This method may be used to attach fluid flow to ducted surfaces bounding the fluid flow. This involves flowing a fluid over the surface wherein the fluid contains positively charged ions and electrons. An electric field accelerates ions and electrons in directions parallel to the electric field. The accelerated positively charged ions accelerate low energy air within lower regions of a boundary layer over the ducted surfaces bounding the ducted fluid flow. A magnetic field at the surface redirects ions and electrons based on their velocity and charge. The magnetic field imparts little force on the relatively heavy and slow moving positive ions but has a significant impact on the relatively fast moving, light weight electrons.

摘要翻译： 提供了一种在管道流体流中操纵边界层条件的方法。 该方法可以用于将流体流附接到围绕流体流动的管道表面。 这涉及使流体流过表面，其中流体包含带正电荷的离子和电子。 电场在平行于电场的方向加速离子和电子。 加速的带正电荷的离子加速边界层的下部区域内的低能量空气，该边界层围绕管道流体流动的管道表面。 表面上的磁场根据其速度和电荷重新定向离子和电子。 磁场对相对较重和缓慢移动的正离子施加很小的力，但对相对快速移动的轻质电子具有显着的影响。

公开(公告)号：US20100290906A1

公开(公告)日：2010-11-18

申请号：US12766432

申请日：2010-04-23

申请人： Curtis W. Moeckel ,  Aspi Wadia ,  David S. Clark ,  Andrew Breeze-Stringfellow

发明人： Curtis W. Moeckel ,  Aspi Wadia ,  David S. Clark ,  Andrew Breeze-Stringfellow

IPC分类号： F01D7/00

CPC分类号： F01D21/003 ,  F01D17/06 ,  F05D2270/101 ,  F05D2270/172

摘要： A system for detecting onset of a stall in a rotor is disclosed, the system comprising a plasma sensor spaced radially outwardly and apart from tips of a circumferential row of blades at a location on a static component that is between a first location and a second location wherein the first location is at a first distance of about 25% blade tip-chord length axially forward from the leading edge of a blade and the second location is at a second distance of about 25% blade tip-chord length axially aft from the trailing edge of a blade and wherein the plasma sensor is capable of generating an input signal corresponding to a flow parameter at a location near the tip of a blade and indicative of the onset of a stall and a correlation processor that generates a stability correlation signal.

摘要翻译： 公开了一种用于检测转子中的失速开始的系统，该系统包括等离子体传感器，该等离子体传感器在位于第一位置和第二位置之间的静态部件上的位置处径向向外并与周向行叶片的尖端分开 其中所述第一位置与从叶片的前缘轴向向前的约25％的叶片尖端弦弦长度的第一距离处，并且所述第二位置距离所述拖尾的轴向后方约25％的叶片尖端弦弦长度的第二距离 叶片的边缘，并且其中等离子体传感器能够产生对应于在叶片尖端附近的位置处的流动参数的输入信号，并指示失速的开始以及产生稳定性相关信号的相关处理器。

公开(公告)号：US07819626B2

公开(公告)日：2010-10-26

申请号：US11580789

申请日：2006-10-13

申请人： Ching-Pang Lee ,  Aspi Rustom Wadia ,  David Glenn Cherry ,  Scott Michael Carson

发明人： Ching-Pang Lee ,  Aspi Rustom Wadia ,  David Glenn Cherry ,  Scott Michael Carson

IPC分类号： F01D11/20 ,  F01D11/24

CPC分类号： F01D11/20 ,  F05D2270/172 ,  Y02T50/671 ,  Y10S415/914

摘要： A gas turbine engine plasma blade tip clearance control system includes an annular shroud surrounding rotatable blade tips and an annular plasma generator spaced radially outwardly and apart from the blade tips. An exemplary embodiment of the annular plasma generator is mounted to the annular shroud and includes radially inner and outer electrodes separated by a dielectric material disposed within an annular groove in a radially inwardly facing surface of the annular shroud. The plasma generator is operable for producing an annular plasma between the annular shroud and blade tips and an effective clearance produced by the annular plasma between the annular shroud and blade tips that is smaller than a clearance between the annular shroud and blade tips.

摘要翻译： 燃气涡轮发动机等离子体叶片顶端间隙控制系统包括围绕可旋转叶片尖端的环形护罩和沿径向向外并与叶片尖端分开的环形等离子体发生器。 环形等离子体发生器的示例性实施例安装到环形护罩，并且包括径向内部和外部电极，该电极由设置在环形护罩的径向向内的表面中的环形槽内的电介质材料隔开。 等离子体发生器可操作用于在环形护罩和叶片尖端之间产生环形等离子体，以及由环形护罩和叶片尖端之间的环形等离子体产生的有效间隙小于环形罩和叶片尖端之间的间隙。

公开(公告)号：US07669404B2

公开(公告)日：2010-03-02

申请号：US12020019

申请日：2008-01-25

申请人： Mohammad Samimy ,  Igor Adamovich

发明人： Mohammad Samimy ,  Igor Adamovich

IPC分类号： F02K1/46 ,  F01D25/30

CPC分类号： F02K1/827 ,  F02C7/24 ,  F02K1/46 ,  F05D2260/96 ,  F05D2270/172 ,  Y02T50/672

摘要： A device for controlling fluid flow. The device includes an arc generator coupled to electrodes. The electrodes are placed adjacent a fluid flowpath such that upon being energized by the arc generator, an arc filament plasma adjacent the electrodes is formed. In turn, this plasma forms a localized high temperature, high pressure perturbation in the adjacent fluid flowpath. The perturbations can be arranged to produce vortices, such as streamwise vortices, in the flowing fluid to control mixing and noise in such flows. The electrodes can further be arranged within a conduit configured to contain the flowing fluid such that when energized in a particular frequency and sequence, can excite flow instabilities in the flowing fluid. The placement of the electrodes is such that they are unobtrusive relative to the fluid flowpath being controlled.

摘要翻译： 用于控制流体流动的装置。 该装置包括耦合到电极的电弧发生器。 电极被放置在流体流动路径附近，使得在被电弧发生器激励时，形成与电极相邻的电弧丝等离子体。 反过来，这种等离子体在相邻的流体流动路径中形成局部高温，高压扰动。 扰动可以被​​布置成在流动的流体中产生涡流，例如流向旋涡，以控制这种流动中的混合和噪声。 电极可以进一步布置在配置成容纳流动流体的导管中，使得当以特定频率和顺序通电时，可以激发流动流体中的流动不稳定性。 电极的放置使得它们相对于被控制的流体流路是不显眼的。

公开(公告)号：US20100040453A1

公开(公告)日：2010-02-18

申请号：US12261151

申请日：2008-10-30

申请人： Huu Duc VO

发明人： Huu Duc VO

IPC分类号： F01D11/14

CPC分类号： F01D11/20 ,  F04D27/02 ,  F04D29/522 ,  F04D29/687 ,  F05D2270/101 ,  F05D2270/102 ,  F05D2270/1022 ,  F05D2270/1024 ,  F05D2270/172

摘要： A compressor comprises a casing having an inner surface surrounding a rotor assembly, the rotor assembly having a plurality of circumferentially spaced radially outwardly extending rotor blades, each blade having leading and trailing edges and a tip, the compressor further comprising at least one plasma actuator for suppressing rotating stall inception of the compressor, the at least one plasma actuator being mounted adjacent to the blade tips.

摘要翻译： 压缩机包括壳体，其具有包围转子组件的内表面，转子组件具有多个周向间隔开的径向向外延伸的转子叶片，每个叶片具有前缘和后缘以及尖端，压缩机还包括至少一个等离子体致动器， 抑制压缩机的旋转失速开始，至少一个等离子体致动器被安装成与叶片尖端相邻。

公开(公告)号：US20090169367A1

公开(公告)日：2009-07-02

申请号：US11966532

申请日：2007-12-28

申请人： Aspi Rustom Wadia ,  Seyed Gholamali Saddoughi ,  Clark Leonard Applegate

发明人： Aspi Rustom Wadia ,  Seyed Gholamali Saddoughi ,  Clark Leonard Applegate

IPC分类号： F01D17/08 ,  F01D5/16

CPC分类号： F02K3/06 ,  F04D29/687 ,  F05D2270/172

摘要： An instability mitigation system is disclosed, comprising a stator stage located axially proximate to a rotor, the stator stage having a row of a plurality of stator vanes arranged around a centerline axis, and a mitigation system comprising at least one plasma actuator mounted on the stator vane that facilitates the improvement of the stability of the rotor, and a control system for controlling the operation of the mitigation system. An instability mitigation system further comprising a detection system for detecting an onset of an instability in a rotor and a control system for controlling the detection system and the mitigation system are disclosed.

摘要翻译： 公开了一种不稳定性缓解系统，其包括定位在轴向上靠近转子的台阶，定子台具有围绕中心线轴线布置的多排定子叶片的排，以及包括至少一个安装在定子上的等离子体致动器 有助于提高转子稳定性的叶片，以及用于控制缓解系统运行的控制系统。 公开了一种不稳定性缓解系统，还包括用于检测转子不稳定性的检测系统和用于控制检测系统和缓解系统的控制系统。

公开(公告)号：US20090169363A1

公开(公告)日：2009-07-02

申请号：US11966503

申请日：2007-12-28

申请人： Aspi Rustom Wadia ,  Seyed Gholamali Saddoughi ,  Clark Leonard Applegate

发明人： Aspi Rustom Wadia ,  Seyed Gholamali Saddoughi ,  Clark Leonard Applegate

IPC分类号： F01B25/16 ,  F02C7/00 ,  F02C9/16

CPC分类号： F04D27/001 ,  F04D27/02 ,  F04D29/526 ,  F05D2270/101 ,  F05D2270/172

摘要： A compression system is disclosed, the compression system comprising a stator stage having a row of a plurality of stator vanes arranged around a centerline axis, each stator vane having a vane airfoil and at least one plasma actuator located on the stator stage. Exemplary embodiments of a detection system for detecting an instability in a compression system rotor and a mitigation system that facilitates the improvement of the stability of the rotor are disclosed.

摘要翻译： 公开了一种压缩系统，该压缩系统包括定子级，该定子级具有围绕中心线轴线布置的多列定子叶片的排，每个定子叶片具有叶片翼型件和位于定子平台上的至少一个等离子体致动器。 公开了一种用于检测压缩系统转子中的不稳定性的检测系统的示例性实施例和有助于提高转子稳定性的缓解系统。

公开(公告)号：US07413149B2

公开(公告)日：2008-08-19

申请号：US10895774

申请日：2004-07-21

申请人： Alan B. Minick ,  Benjamin Goldberg ,  Larry Knauer

发明人： Alan B. Minick ,  Benjamin Goldberg ,  Larry Knauer

IPC分类号： B64C21/00

CPC分类号： B64C23/005 ,  B64C2230/12 ,  F05D2270/172 ,  F15D1/10 ,  Y02T50/166

摘要： A system for augmenting the apparent velocity and effectiveness of an airfoil, such as a wing, on a vehicle includes at least one ionizer or emitter positioned relative to the airfoil to ionize a fluid media in which the airfoil travels and at least one attractor/receiver for accelerating the flow of ionized fluid media over the airfoil. The system further includes a voltage source to which each ionizer and each attractor is electrically connected.

摘要翻译： 一种用于增强车辆上的翼面（如机翼）的表观速度和有效性的系统包括至少一个相对于翼型件定位的离子发生器或发射器，以离子化其中翼型件行进的流体介质和至少一个吸引子/接收器 用于加速翼型上的电离流体介质的流动。 该系统还包括每个电离器和每个吸引子电连接的电压源。

公开(公告)号：US20080145233A1

公开(公告)日：2008-06-19

申请号：US11639878

申请日：2006-12-15

申请人： Ching-Pang Lee ,  Aspi Rustom Wadia ,  David Glenn Cherry ,  Je-Chin Han

发明人： Ching-Pang Lee ,  Aspi Rustom Wadia ,  David Glenn Cherry ,  Je-Chin Han

IPC分类号： F01D5/12 ,  F01D17/00

CPC分类号： F01D5/147 ,  F01D5/145 ,  F01D9/041 ,  F05D2240/122 ,  F05D2240/304 ,  F05D2270/172 ,  Y02T50/673 ,  Y10S415/914

摘要： A trailing edge vortex reducing system includes a gas turbine engine airfoil extending in a spanwise direction, one or more spanwise extending plasma generators in a trailing edge region around a trailing edge of the airfoil. The plasma generators may be mounted on an outer wall of the airfoil with first and second pluralities of the plasma generators on pressure and suction sides of the airfoil respectively. The plasma generators may include inner and outer electrodes separated by a dielectric material disposed within a grooves in an outer hot surface of the outer wall of the airfoil. The plasma generators may be located at an aft end of the airfoil and the inner electrodes flush with the trailing edge base. A method for operating the system includes energizing one or more of plasma generators in steady state or unsteady modes.

摘要翻译： 后缘涡流减少系统包括在翼展方向上延伸的燃气涡轮发动机翼型件，在翼型件的后缘周围的后缘区域中的一个或多个翼展方向延伸的等离子体发生器。 等离子体发生器可以分别安装在机翼的外壁上，其中第一和第二多个等离子体发生器分别在翼型的压力和吸力侧。 等离子体发生器可以包括由设置在翼型件的外壁的外部热表面中的凹槽内的介电材料隔开的内部和外部电极。 等离子体发生器可以位于翼型的后端，并且内部电极与后缘基座齐平。 用于操作该系统的方法包括给稳态或不稳定模式中的一个或多个等离子体发生器通电。