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    • 52. 发明授权
    • Gas turbine engine blade tip clearance apparatus and method
    • 燃气轮机发动机叶片间隙装置及方法
    • US08011883B2
    • 2011-09-06
    • US12166720
    • 2008-07-02
    • Frederick M. SchwarzJ. Walter Smith
    • Frederick M. SchwarzJ. Walter Smith
    • F01D11/08
    • F01D11/22F01D11/20F01D11/24F04D29/052Y02T50/671
    • A method for controlling blade tip clearance within a gas turbine engine includes a compressor having at least one first rotor assembly, wherein the blade tips in each of at least one first rotor assembly has a mating geometry with at least one of at least one blade seal surfaces, and a clearance distance extending between the blade tips and the blade seal surfaces; a turbine having at least one second rotor assembly, wherein the blade tips in each of at least one second rotor assembly has a mating geometry with at least one of at least one blade seal surfaces, and a clearance distance extending between the blade tips and the blade seal surfaces; providing an actuator selectively operable to move at least one rotor assembly relative to the shroud; providing an electronic engine controller having a control logic for operating the actuator; and moving at least one first rotor assemblies and at least one second rotor assembly relative to the shroud using the actuator at a response rate according to the control logic to alter the clearance distance.
    • 用于控制燃气涡轮发动机内的叶片顶端间隙的方法包括具有至少一个第一转子组件的压缩机,其中至少一个第一转子组件中的每一个中的叶片尖端具有与至少一个叶片密封件 表面和在叶片尖端和叶片密封表面之间延伸的间隙距离; 具有至少一个第二转子组件的涡轮机,其中至少一个第二转子组件中的每个中的叶片尖端具有与至少一个叶片密封表面中的至少一个的配合几何形状,以及在叶片尖端和 叶片密封面; 提供选择性地可操作以相对于护罩移动至少一个转子组件的致动器; 提供具有用于操作致动器的控制逻辑的电子发动机控制器; 以及使用致动器以根据控制逻辑的响应速率相对于护罩移动至少一个第一转子组件和至少一个第二转子组件以改变间隙距离。
    • 54. 发明申请
    • COOLING EXCHANGER DUCT
    • 冷却交换机
    • US20100275578A1
    • 2010-11-04
    • US12820335
    • 2010-06-22
    • Frederick M. Schwarz
    • Frederick M. Schwarz
    • F02K99/00
    • F02C7/14F02K3/115Y02T50/675
    • A method for using a heat exchange system in operating equipment in which a working fluid is utilized in providing selected operations thereof, including for use in lubricating systems for aircraft turbofan engine equipment, the heat exchange system for providing air and working fluid heat exchanges to cool the working fluid at selectively variable rates in the operating equipment developed airstreams. A heat exchanger core is provided in a controlled air flow duct system opening at its entrance to those airstreams and having its outlet end opening downstream in those airstreams.
    • 一种在操作设备中使用热交换系统的方法,其中使用工作流体来提供其选择的操作,包括用于飞行器涡扇发动机设备的润滑系统,用于提供空气和工作流体热交换以冷却的热交换系统 在操作设备中选择性变化的工作流体产生气流。 热交换器芯设置在受控的空气流动管道系统中,在其入口处开口,并且其出口端在这些气流中向下游开口。
    • 56. 发明授权
    • Gas turbine engine blade tip clearance apparatus and method
    • 燃气轮机发动机叶片间隙装置及方法
    • US07407369B2
    • 2008-08-05
    • US11253235
    • 2005-10-17
    • Frederick M. SchwarzJ. Walter Smith
    • Frederick M. SchwarzJ. Walter Smith
    • F01D11/08
    • F01D11/122F01D11/22F01D21/04F04D29/052F05D2260/403F16C23/06F16C2360/23Y02T50/671
    • A zero running clearance system for gas turbine engines includes a gas turbine engine compressor having one or more first rotor assemblies and one or more first stator assemblies disposed adjacent the one or more first rotor assemblies; a gas turbine engine turbine having one or more second rotor assemblies and one or more second stator assemblies disposed adjacent the one or more second rotor assemblies; one or more shroud segments having blade seal surfaces disposed radially outside of the tips of blades of both the first and second rotor assemblies and a clearance distance extending between the blade tips and blade seal surfaces; and, an actuator selectively operable to axially move the first and said second rotor assemblies to alter the clearance distance.
    • 用于燃气涡轮发动机的零运行间隙系统包括具有一个或多个第一转子组件和邻近一个或多个第一转子组件设置的一个或多个第一定子组件的燃气涡轮发动机压缩机; 具有一个或多个第二转子组件和邻近所述一个或多个第二转子组件设置的一个或多个第二定子组件的燃气涡轮发动机涡轮机; 一个或多个护罩段具有设置在第一和第二转子组件的叶片的尖端的径向外侧的叶片密封表面和在叶片尖端和叶片密封表面之间延伸的间隙距离; 以及致动器,其选择性地可操作以轴向移动所述第一和所述第二转子组件以改变所述间隙距离。
    • 58. 发明授权
    • Gas turbine engine blade tip clearance apparatus and method
    • 燃气轮机发动机叶片间隙装置及方法
    • US07341426B2
    • 2008-03-11
    • US11025435
    • 2004-12-29
    • Frederick M. SchwarzRobert H. PerkinsonJesse Walter Smith
    • Frederick M. SchwarzRobert H. PerkinsonJesse Walter Smith
    • F01D11/08
    • F01D11/22F01D11/122F04D29/052F05D2260/403F16C23/06F16C2360/23
    • A gas turbine engine is provided that includes one or more rotor assemblies, one or more shroud segments, and an actuator. The rotor assemblies are rotatable around an axially extending rotational axis, and each rotor assembly has a plurality of blades. Each blade has a blade tip. The one or more shroud segments each has a blade seal surface disposed radially outside of the one or more rotor assemblies. The blade tips and blade seal surfaces (collectively referred to as the blade seal surface) have mating conical geometries and a clearance distance extending between the blade tips and blade seal surface. The blade tips and blade seal surface are disposed at an angle relative to the axial centerline of the engine, which angle is greater than zero. The actuator is selectively operable to axially move one or both of the shroud segments and rotor assemblies relative to the other of the shroud segments and rotor assemblies to alter the clearance distance.
    • 提供了一种燃气涡轮发动机,其包括一个或多个转子组件,一个或多个护罩段和致动器。 转子组件可围绕轴向延伸的旋转轴线旋转,并且每个转子组件具有多个叶片。 每个叶片都有一个叶片尖端。 一个或多个护罩段各自具有设置在一个或多个转子组件的径向外侧的叶片密封表面。 叶片尖端和叶片密封表面(统称为叶片密封表面)具有匹配的圆锥形几何形状和在叶片尖端和叶片密封表面之间延伸的间隙距离。 叶片尖端和叶片密封表面相对于发动机的轴向中心线成角度设置,该角度大于零。 致动器可选择性地可操作以相对于护罩段和转子组件中的另一个轴向移动护罩段和转子组件中的一个或两个,以改变间隙距离。