METHOD AND SYSTEM FOR CONTROLLING CLEARANCE

    公开(公告)号:JP2003214114A

    公开(公告)日:2003-07-30

    申请号:JP2002337345

    申请日:2002-11-21

    Abstract: PROBLEM TO BE SOLVED: To improve a clearance control in a turbomachine. SOLUTION: A system and method for controlling a clearance of the turbomachine 10 includes adjusting machine case cooling air 33 in accordance with a difference between a desired clearance and a actual clearance. An accurate estimate of the actual clearance is performed by a real time mathematical model of an on-board engine controller 40. The model computes each thermal growth of the turbomachine components 41, 43 and 50 with a difference equation derived from a closed form solution of a 1st order differential equation obtained through the application of a 1st law of thermodynamics. The resulting equation is conveniently formulated in terms of equivalent time constant and steady state growth both of which are correlated with thermo-physical characteristics of multiple fluid streams 48 exchanging heat with the components 41, 43 and 50. COPYRIGHT: (C)2003,JPO

    COOLABLE STATOR VANE FOR ROTATING MACHINE

    公开(公告)号:JP2001065306A

    公开(公告)日:2001-03-13

    申请号:JP2000233872

    申请日:2000-08-02

    Abstract: PROBLEM TO BE SOLVED: To provide a comparatively simple cooling flow passage for rear end area of a stator vane. SOLUTION: A platform for the stator vane includes a meandering flow passage 168 for cooling fluid including two paths 169, 170 provided in the rear end area of the vane. The meandering flow passage 168 extends to a side, folds back and makes flow flowing backward. An endmost part of the meandering flow passage 168 is adjacent to the rear end 134 so as to accept at least the half flow flowing into the flow passage 168 and to discharge the flow through a gas flow passage surface and the rear end 134 of the platform.

    STATOR ASSEMBLY
    3.
    发明申请
    STATOR ASSEMBLY 审中-公开
    定子组装

    公开(公告)号:WO2007016220A8

    公开(公告)日:2007-08-16

    申请号:PCT/US2006029143

    申请日:2006-07-28

    Abstract: A stator assembly (16) for a rotary machine (10) having an array of wall segments (48) for bounding a working medium flow path is disclosed. Various construction details which provide a sealing structure for the segments are developed. In one detailed embodiment, a removable seal retainer (42) for a seal chamber (98) bounded by wall segments traps a resilient seal member (44) in the seal chamber. In one particular embodiment, a modular subassembly (172) for the engine is an outer air assembly disposed in a fixture (174) as the subassembly is assembled.

    Abstract translation: 公开了一种用于旋转机器(10)的定子组件(16),其具有用于界定工作介质流动路径的壁段(48)的阵列。 开发了各种结构细节,为细分市场提供密封结构。 在一个详细的实施例中,用于由壁段限定的密封室(98)的可移除密封保持器(42)将密封室中的弹性密封构件(44)捕获。 在一个特定实施例中,用于发动机的模块化子组件(172)是当子组件被组装时布置在固定件(174)中的外部空气组件。

    STATOR ASSEMBLY
    4.
    发明申请
    STATOR ASSEMBLY 审中-公开
    定期装配

    公开(公告)号:WO2007016220A3

    公开(公告)日:2007-05-18

    申请号:PCT/US2006029143

    申请日:2006-07-28

    Abstract: A stator assembly (16) for a rotary machine (10) having an array of wall segments (48) for bounding a working medium flow path is disclosed. Various construction details which provide a sealing structure for the segments are developed. In one detailed embodiment, a removable seal retainer (42) for a seal chamber (98) bounded by wall segments traps a resilient seal member (44) in the seal chamber. In one particular embodiment, a modular subassembly (172) for the engine is an outer air assembly disposed in a fixture (174) as the subassembly is assembled.

    Abstract translation: 公开了一种用于旋转机器(10)的定子组件(16),其具有用于限定工作介质流动路径的壁段(48)阵列。 开发了提供用于段的密封结构的各种构造细节。 在一个详细的实施例中,用于由壁段限定的密封室(98)的可拆卸的密封保持器(42)将密封室中的弹性密封构件(44)捕获。 在一个特定实施例中,用于发动机的模块化子组件(172)是当组件组装时设置在固定装置(174)中的外部空气组件。

    TIP CLEARANCE CONTROL SYSTEM
    5.
    发明申请
    TIP CLEARANCE CONTROL SYSTEM 审中-公开
    提示间隙控制系统

    公开(公告)号:WO2007086893A3

    公开(公告)日:2009-04-16

    申请号:PCT/US2006010013

    申请日:2006-03-17

    Inventor: KANE DANIEL E

    CPC classification number: F01D11/20 F01D11/24 F05D2270/301 F05D2270/702

    Abstract: The invention is a method for controlling blade tip clearance in a turbine engine having a flowpath extending therethrough, and a system for carrying out the method. The method includes acquiring a first nonpulsating pressure signal Pc representative of tip clearance, sensing a second pressure PB substantially unaffected by tip clearance, forming an actual ratio of the acquired pressure and the sensed pressure, determining an error E having an actual component and a desired component, the actual component being a function of the actual ratio; and commanding a clearance control system to reduce the error.

    Abstract translation: 本发明是一种用于控制具有延伸穿过其中的流路的涡轮发动机中的叶片顶端间隙的方法,以及用于执行该方法的系统。 该方法包括获取代表尖端间隙的第一非脉动压力信号Pc,感测基本上不受尖端间隙影响的第二压力PB,形成获得的压力和感测压力的实际比例,确定具有实际部件和期望 组件,实际组件是实际比例的函数; 并指挥清关控制系统减少误差。

    6.
    发明专利
    未知

    公开(公告)号:FR2626622B1

    公开(公告)日:1993-02-12

    申请号:FR8901183

    申请日:1989-01-31

    Abstract: The cooling air duct for a clearance control system has spacers which abut the surface to be cooled. Critical spacing for proper cooling is obtained and is easily inspected. Ajustable supports facilitate adjustment.

    7.
    发明专利
    未知

    公开(公告)号:DE60215602T2

    公开(公告)日:2007-08-23

    申请号:DE60215602

    申请日:2002-11-21

    Abstract: A system and method of controlling clearance in a turbomachine (10) includes adjusting the machine case cooling (33) air in response to the difference between the desired clearance and the actual clearance. An accurate estimate of the actual clearance is made with a real time mathematical model on-board engine controller (40). The model computes thermal growth of the turbomachine components (41, 43, 50) each with a difference equation derived from a closed form solution to the 1 order differential equation obtained through the application of 1 law of thermodynamics. The resulting equation is conveniently formulated in terms of equivalent time constant and steady state growth both correlated with thermo-physical characteristics of multiple fluid streams (48) exchanging heat with the component (41, 43, 50). The solution is applied over a time step of the control software. Approximating coefficients are strategicay placed in the model to allow calibration of the model to a particular version of the engine hardware.

    8.
    发明专利
    未知

    公开(公告)号:DE60215602D1

    公开(公告)日:2006-12-07

    申请号:DE60215602

    申请日:2002-11-21

    Abstract: A system and method of controlling clearance in a turbomachine (10) includes adjusting the machine case cooling (33) air in response to the difference between the desired clearance and the actual clearance. An accurate estimate of the actual clearance is made with a real time mathematical model on-board engine controller (40). The model computes thermal growth of the turbomachine components (41, 43, 50) each with a difference equation derived from a closed form solution to the 1 order differential equation obtained through the application of 1 law of thermodynamics. The resulting equation is conveniently formulated in terms of equivalent time constant and steady state growth both correlated with thermo-physical characteristics of multiple fluid streams (48) exchanging heat with the component (41, 43, 50). The solution is applied over a time step of the control software. Approximating coefficients are strategicay placed in the model to allow calibration of the model to a particular version of the engine hardware.

    10.
    发明专利
    未知

    公开(公告)号:FR2626622A1

    公开(公告)日:1989-08-04

    申请号:FR8901183

    申请日:1989-01-31

    Abstract: The cooling air duct for a clearance control system has spacers which abut the surface to be cooled. Critical spacing for proper cooling is obtained and is easily inspected. Ajustable supports facilitate adjustment.

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