利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

64 条记录 (耗时 0.012 秒)

    LOW-POWER BOWED ROTOR PREVENTION SYSTEM
    12.
    发明申请
    LOW-POWER BOWED ROTOR PREVENTION SYSTEM 审中-公开

    公开(公告)号：US20180355764A1

    公开(公告)日：2018-12-13

    申请号：US15444942

    申请日：2017-02-28

    申请人： United Technologies Corporation

    发明人： Jesse W. Clauson ,  Frederick M. Schwarz

    IPC分类号： F01D25/36 ,  F02C7/32 ,  F02C3/073 ,  F01D21/20

    摘要： A bowed rotor prevention system for a gas turbine engine includes a core turning motor operable to drive rotation of an engine core of the gas turbine engine. The bowed rotor prevention system also includes an auxiliary electric motor control operable to control the core turning motor to drive rotation of the engine core using electric power while a full authority digital engine control that controls operation of the gas turbine engine is either depowered or in a power state that is less than a power level used by the full authority digital engine control in flight operation.

    Connecting valve and hydraulic oil safety and power system in which the connecting valve is used
    13.
    发明授权
    Connecting valve and hydraulic oil safety and power system in which the connecting valve is used 失效
    使用连接阀的连接阀和液压油安全和动力系统

    公开(公告)号：US5217199A

    公开(公告)日：1993-06-08

    申请号：US820145

    申请日：1992-01-13

    申请人： Heinz Frey

    发明人： Heinz Frey

    IPC分类号： F01D17/26 ,  F01D21/00 ,  F01D21/20 ,  F15B11/00 ,  F16K37/00

    CPC分类号： F01D21/20 ,  F16K37/0083 ,  F16K37/0091

    摘要： Connecting valve and hydraulic oil safety and power system in which the connecting valve is used.This connecting valve (1) has at least one sealing location (5) which is actuated by means of a piston/cylinder arrangement. A piston (3) is subjected to a pressure fluid and moved against the force of a spring (7).A connecting valve (1) is created which can be inspected for freedom of movement without influencing operation. The hydraulic oil safety and power system should be particularly operationally reliable by means of the connecting valve (1) in accordance with the invention. This is achieved by at least two pipes (17, 18) entering the drive volume (2) offset in the axial direction, of which pipes only one first pipe (17) is initially effective.

    摘要翻译： 使用连接阀的连接阀和液压油安全和电力系统。 该连接阀（1）具有至少一个通过活塞/气缸装置致动的密封位置（5）。 活塞（3）经受压力流体并抵抗弹簧（7）的力移动。 产生连接阀（1），可以检查运动的自由度，而不会影响运行。 通过根据本发明的连接阀（1），液压油安全和动力系统应特别可操作地可靠。 这通过至少两个进入驱动体积（2）的管道（17,18）来实现，该管道沿轴向偏移，其中管道仅一个第一管道（17）最初是有效的。

    Method of diagnostic valve testing
    14.
    发明授权
    Method of diagnostic valve testing 失效
    诊断阀测试方法

    公开(公告)号：US4274438A

    公开(公告)日：1981-06-23

    申请号：US13701

    申请日：1979-02-21

    申请人： Bernard L. La Coste

    发明人： Bernard L. La Coste

    IPC分类号： F01D21/20 ,  F16K37/00 ,  G01L5/00 ,  G01M13/00 ,  G01D9/28

    CPC分类号： F01D21/20 ,  F16K37/0083 ,  G01L5/0061 ,  Y10T137/8158

    摘要： A method for testing steam turbine admission valve assemblies for determining the operational force margins present therein which are used to diagnose the likelihood of valve inoperativeness due to the build-up of frictional forces in the valve assembly is disclosed.

    摘要翻译： 公开了一种用于测量汽轮机进气阀组件的方法，用于确定其中存在的操作力余量，其用于诊断由于阀组件中的摩擦力的积聚引起的阀不操作性的可能性。