利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

55 条记录 (耗时 0.03 秒)

    DETERMINING THE DETERIORATION OF A GAS TURBINE ENGINE IN USE
    2.
    发明申请
    DETERMINING THE DETERIORATION OF A GAS TURBINE ENGINE IN USE 有权
    确定使用燃气涡轮发动机的检测

    公开(公告)号：US20140236450A1

    公开(公告)日：2014-08-21

    申请号：US14173289

    申请日：2014-02-05

    申请人： ROLLS-ROYCE PLC

    发明人： Ian Colin Deuchar CARE

    IPC分类号： F02C9/00

    CPC分类号： F02C9/00 ,  F01D5/027 ,  F01D21/04 ,  F01D21/045 ,  F01D21/08 ,  F01D21/14 ,  F02C9/28 ,  F05D2270/11

    摘要： This invention relates to the operation of gas turbine engines, and in particular to determining deterioration of components during operation. In a specific embodiment, the invention is concerned with determining the actions to be taken when a foreign body impact has been detected, for example on a fan blade.Accordingly, the invention provides a method to take one or more FOD detection apparatus, analyse the likely (probabilistic) outcome, and provide a system to determine subsequent action that assures safety whilst minimising operational disruption.This invention provides a method and apparatus to identify FOD or bird impact to gas turbine fan blades, assessing the damage that may have occurred whist still in flight and determining post impact actions, including replacement parts.

    摘要翻译： 本发明涉及燃气涡轮发动机的操作，特别涉及确定操作期间部件的劣化。 在具体实施例中，本发明涉及确定在检测到异物撞击时所采取的动作，例如在风扇叶片上。 因此，本发明提供了一种采用一个或多个FOD检测装置，分析可能（概率）结果的方法，并且提供一种系统来确定确保安全性的后续动作，同时最小化操作中断。 本发明提供了一种用于识别对燃气涡轮风扇叶片的FOD或鸟类影响的方法和装置，评估可能在飞行中发生的损坏以及确定后冲击动作（包括更换部件）。

    System for controlling thrust in steam turbine
    4.
    发明授权
    System for controlling thrust in steam turbine 有权
    用于控制汽轮机推力的系统

    公开(公告)号：US08568084B2

    公开(公告)日：2013-10-29

    申请号：US12821391

    申请日：2010-06-23

    申请人： Xiaoqing Zheng ,  Bernard Arthur Couture, Jr. ,  Casey William Jones ,  Binayak Roy

    发明人： Xiaoqing Zheng ,  Bernard Arthur Couture, Jr. ,  Casey William Jones ,  Binayak Roy

    IPC分类号： F01D3/00 ,  F04D29/041

    CPC分类号： F01D11/025 ,  F01D3/04 ,  F01D17/08 ,  F01D17/10 ,  F01D17/20 ,  F01D19/00 ,  F01D21/06 ,  F01D21/08 ,  F01D21/14 ,  F05D2240/52

    摘要： A system controls net thrust of a steam turbine having a stepped rotating shaft. A first leak off line fluidly couples a first stage of a turbine section to a packing near a stepped portion on the rotating shaft. A second leak off line fluidly couples a second stage of the turbine section that has a pressure different from the first stage to a step area immediately adjacent to the stepped portion, and a connection line fluidly couples the first leak off line to the second leak off line. The lines include control valves such that a controller can actively control the net thrust by regulating thrust pressure on the stepped portion using steam from the first and second stages of the turbine section. The controller may also prevent damage to an active retractable seal using the control valves.

    摘要翻译： 系统控制具有阶梯式旋转轴的汽轮机的净推力。 第一泄漏线将涡轮机部分的第一级与旋转轴上的台阶部分附近的填料流体连接。 第二泄漏线将具有不同于第一级的压力的涡轮部分的第二级流体地耦合到与台阶部分紧邻的台阶区域，并且连接线将第一泄漏线与第二泄漏流体耦合 线。 这些管线包括控制阀，使得控制器可以通过使用来自涡轮部分的第一和第二级的蒸汽来调节阶梯部分上的推力来主动地控制净推力。 控制器还可以使用控制阀防止对活动的可缩回密封件的损坏。

    Method and system for controlling distortion of turbine case due to thermal variations
    6.
    发明授权
    Method and system for controlling distortion of turbine case due to thermal variations 有权
    用于控制由于热变化引起的涡轮机壳失真的方法和系统

    公开(公告)号：US06691019B2

    公开(公告)日：2004-02-10

    申请号：US09683403

    申请日：2001-12-21

    申请人： Charles Erklin Seeley ,  Ramanath Iyer Ramakrishnan ,  James Patrick Claeys ,  Martel Alexander McCallum ,  Anthony Constantine Thermos ,  Hsin-Pang Wang ,  Weiping Wang

    发明人： Charles Erklin Seeley ,  Ramanath Iyer Ramakrishnan ,  James Patrick Claeys ,  Martel Alexander McCallum ,  Anthony Constantine Thermos ,  Hsin-Pang Wang ,  Weiping Wang

    IPC分类号： G06F1900

    CPC分类号： F01D21/04 ,  F01D17/085 ,  F01D21/08 ,  F01D25/24 ,  F01D25/26 ,  F05D2270/303 ,  F05D2270/44

    摘要： A method for controlling distortion of a turbine case (“case”) includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index (“index”) resulting from the thermal stresses, and comparing the index with at least one distortion limit to determine whether the case has a satisfactory or an unsatisfactory index. The temperature distribution is controlled for an unsatisfactory index to produce the satisfactory index. A system for controlling distortion of the turbine case includes a thermal measurement system, for measuring the temperature distribution, and a computer configured for modeling the thermal stresses, calculating and comparing the index with the distortion limit, and controlling the temperature distribution for an unsatisfactory index to produce the satisfactory index.

    摘要翻译： 一种用于控制涡轮壳体的变形的方法（“情况”）包括测量包括热梯度的情况的温度分布。 该方法还包括对由热梯度引起的壳体上的热应力进行建模，计算由热应力产生的圆度指数（“指标”），并将该指数与至少一个失真极限进行比较，以确定该情况是否具有 令人满意或令人不满意的指标。 控制温度分布为不令人满意的指标，以产生令人满意的指标。 用于控制涡轮壳体的变形的系统包括用于测量温度分布的热测量系统，以及用于对热应力建模，计算和比较指数与失真极限的计算机，以及控制不满意指数的温度分布 产生令人满意的指标。

    COLLAPSIBLE SUPPORT STRUCTURE FOR A GAS TURBINE ENGINE
    8.
    发明申请
    COLLAPSIBLE SUPPORT STRUCTURE FOR A GAS TURBINE ENGINE 有权
    一种气体涡轮发动机的不可支撑结构

    公开(公告)号：US20160130975A1

    公开(公告)日：2016-05-12

    申请号：US14881471

    申请日：2015-10-13

    申请人： ROLLS-ROYCE PLC

    发明人： Nicholas Edward CHILTON ,  Michael John BARKER

    IPC分类号： F01D25/16 ,  F01D25/24

    CPC分类号： F01D25/162 ,  F01D21/045 ,  F01D21/08 ,  F01D25/24 ,  F05D2220/32 ,  F05D2240/50 ,  F05D2240/60 ,  F05D2260/311

    摘要： Described is a shaft support system for a gas turbine engine comprising: a rotatable fan shaft; first and second support structures extending in parallel from the shaft to a load bearing structure to provide radial location of the shaft within an engine casing, wherein the first support and second support structures include first and second respective mechanical fusible joints; wherein the first fusible joint is a two-stage fuse which partially fails within a first predetermined load range, the second fusible joint fails within a second predetermined load range which is different to the first load range, and the first fusible joint fully fails only when the second fusible joint has failed.

    摘要翻译： 描述了一种用于燃气涡轮发动机的轴支撑系统，包括：可旋转的风扇轴; 第一和第二支撑结构从轴平行延伸到承载结构以提供轴在发动机壳体内的径向位置，其中第一支撑件和第二支撑结构包括第一和第二相应的机械可熔接头; 其中所述第一可熔接头是在第一预定负载范围内部分失效的第二可熔接头，所述第二熔断器在与所述第一负载范围不同的第二预定负载范围内失效，并且所述第一可熔接头仅在 第二个可熔接头失败了。

    VARIABLE-PITCH ROTOR WITH REMOTE COUNTERWEIGHTS
    9.
    发明申请
    VARIABLE-PITCH ROTOR WITH REMOTE COUNTERWEIGHTS 有权
    具有远程计数器的可变式转子转子

    公开(公告)号：US20160032740A1

    公开(公告)日：2016-02-04

    申请号：US14708353

    申请日：2015-05-11

    申请人： General Electric Company

    发明人： Daniel Alan NIERGARTH ,  Brandon Wayne MILLER ,  Donald Albert BRADLEY

    IPC分类号： F01D7/02 ,  F01D5/02 ,  F02C3/04

    CPC分类号： F01D7/02 ,  F01D5/02 ,  F01D21/08 ,  F02C3/04 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2240/30 ,  F05D2260/53 ,  F05D2260/77 ,  F05D2260/79 ,  F05D2270/021 ,  F05D2270/09 ,  F05D2270/58 ,  Y02T50/673

    摘要： A pitch control mechanism includes: a rotor structure configured for rotation about a longitudinal axis; a row of blades carried by the rotor structure, each blade having an airfoil and a trunnion mounted for pivoting movement relative to the rotor structure, about a trunnion axis which is perpendicular to the longitudinal axis; a unison ring interconnecting the blades; an actuator connected to the unison ring and the rotor structure, operable to move the unison ring relative to the rotor structure; at least one moveable counterweight carried by the rotor structure, remote from the blades; and an interconnection between the blades and the counterweight, such that movement of the counterweight causes a change in the pitch angle of the blades.

    摘要翻译： 桨距控制机构包括：转子结构，其构造成围绕纵向轴线旋转; 由转子结构承载的一排叶片，每个叶片具有翼形件和耳轴，其围绕垂直于纵向轴线的耳轴轴线安装成相对于转子结构枢转运动; 互相连接叶片的协调环; 连接到协调环和转子结构的致动器，可操作以相对于转子结构移动协调环; 由转子结构承载的至少一个可移动配重，远离叶片; 以及叶片和配重之间的互连，使得配重的运动导致叶片的桨距角的变化。

    Shaft stabiliser
    10.
    发明授权
    Shaft stabiliser 有权
    轴稳定器

    公开(公告)号：US08371802B2

    公开(公告)日：2013-02-12

    申请号：US12585093

    申请日：2009-09-03

    申请人： Kenneth F. Udall

    发明人： Kenneth F. Udall

    IPC分类号： F01B25/26 ,  F01B25/16 ,  F01B25/14

    CPC分类号： F01D21/045 ,  F01D21/08

    摘要： A load transfer arrangement is provided to act as a stabiliser for utilisation in centring rotational instabilities which may occur in rotor devices such as those within a gas turbine engine. By providing a fixed screw thread path which comprises a groove having channels and having constrictions and which define clearance crowns an acceptable eccentricity range it is possible to slow screw thread driving motion and therefore load transfer only to the positions where the rotational eccentricity enters tapers leading to the constrictions. In such circumstances an orbit thread is then progressively brought into confinement and continuous engagement with a fixed screw thread defined by crowns of channels of the fixed screw thread path defined by the continuous groove through the channels. In such circumstances wide eccentricity is allowed initially but as rotational speed reduces greater and more continuous driving motions are provided whilst avoiding excessive loading during early stage operation. High loads on final rundown contact are controlled by a diaphragm mount, the whole serving to restore the support stiffness of the rotor post fusing.

    摘要翻译： 提供负载传递装置用作稳定器，以用于在诸如燃气涡轮发动机内的转子装置中可能发生的定心旋转不稳定性。 通过提供固定的螺纹路径，其包括具有通道并具有收缩并且限定间隙冠的可接受的偏心范围的凹槽，可以减慢螺纹驱动运动，并且因此可以仅将载荷传递到旋转偏心进入锥形的位置，导致 收缩。 在这种情况下，轨道螺纹随后被逐渐地限制并与由通过通道的连续槽限定的固定螺纹路径的通道的顶部限定的固定螺纹线连续接合。 在这种情况下，最初允许宽的偏心度，但随着旋转速度的降低，提供更大的连续的驱动运动，同时避免在早期操作过程中过度的负载。 最终破坏接触件的高负载由隔膜支架控制，整体用于恢复转子柱固定的支撑刚度。