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    TURBO-MOLECULAR PUMP
    1.
    发明申请
    TURBO-MOLECULAR PUMP 审中-公开

    公开(公告)号：US20180238334A1

    公开(公告)日：2018-08-23

    申请号：US15440061

    申请日：2017-02-23

    申请人： Shimadzu Corporation

    发明人： Nobuhiko MORIYAMA

    IPC分类号： F04D27/00 ,  F04D19/04 ,  F04D29/32 ,  F04D29/58 ,  F04D29/54

    CPC分类号： F04D29/542 ,  F04D19/042 ,  F04D27/0261 ,  F04D27/0292 ,  F04D29/584

    摘要： A turbo-molecular pump comprises a cylindrical rotor to be rotatably driven by a motor; a cylindrical stator provided corresponding to the rotor; a heater configured to elevate a temperature of the stator to a target temperature; a temperature sensor configured to detect the temperature of the stator; and a control section. A rotation start command is input after start of energization of the heater, the control section stops rotary driving of the rotor at a rated rotation speed until the temperature of the stator reaches a predetermined temperature set lower than the target temperature and begins the rotary driving at the rated rotation speed when the temperature of the stator exceeds the predetermined temperature.

    ENHANCED TURBOCOMPRESSOR STARUP
    2.
    发明申请
    ENHANCED TURBOCOMPRESSOR STARUP 审中-公开

    公开(公告)号：US20180149163A1

    公开(公告)日：2018-05-31

    申请号：US15880820

    申请日：2018-01-26

    申请人： Compressor Controls Corporation

    发明人： Saul Mirsky ,  Wayne Jacobson ,  Jeff McWhirter

    IPC分类号： F04D27/02

    CPC分类号： F04D27/0261 ,  F04D27/0292

    摘要： A control method and apparatus for startup of turbocompressors to avoid overpowering a driver of the turbocompressor. In a first embodiment, the control system monitors input signals from transmitters of various control inputs. When the input signals exceed threshold values, the control system begins to close the antisurge valve. In a second embodiment, the antisurge valve begins to close after a predetermined time measured from the time startup is initiated. In both embodiments, the antisurge valve continues to ramp closed until the compressor has reached its operating zone, or until the compressor's operating point reaches a surge control line, at which point the antisurge valve is manipulated to keep the compressor from surging.

    VARIABLE PITCH FAN PITCH RANGE LIMITER
    6.
    发明申请
    VARIABLE PITCH FAN PITCH RANGE LIMITER 审中-公开
    可变的风扇风扇斜坡限制器

    公开(公告)号：US20170058683A1

    公开(公告)日：2017-03-02

    申请号：US14838405

    申请日：2015-08-28

    申请人： General Electric Company

    发明人： Daniel Alan NIERGARTH ,  Brandon Wayne MILLER

    IPC分类号： F01D7/00

    CPC分类号： F01D7/00 ,  B64C11/38 ,  F02C9/58 ,  F02K1/66 ,  F04D27/0292 ,  F04D29/323 ,  F05D2220/36 ,  F05D2240/30 ,  F05D2260/72 ,  F05D2260/74 ,  F05D2260/76 ,  F05D2270/46 ,  F05D2270/56 ,  F05D2270/62 ,  F05D2270/64 ,  Y02T50/673

    摘要： A variable pitch fan for gas turbine engine is provided. The variable pitch fan includes a plurality of fan blades rotatably coupled to a disk and an actuation assembly for changing a pitch of each of the plurality of fan blades. The actuation assembly generally includes an actuation member operably connected to at least one of the plurality of fan blades and a pin. The pin is movable between a first position in which the pin is positioned at least partially in a channel defined in the actuation member, and a second position. The pin blocks movement of the actuation member relative to the pin past a range defined by the channel when in the first position. The actuation assembly further includes a retraction system for selectively engaging the pin in moving the pin from the first position to the second position.

    摘要翻译： 提供了一种用于燃气轮机的变桨距风机。 可变间距风扇包括可旋转地联接到盘的多个风扇叶片和用于改变多个风扇叶片中的每一个的间距的致动组件。 致动组件通常包括可操作地连接到多个风扇叶片和销中的至少一个的致动构件。 销可在第一位置和第二位置之间移动，在第一位置，销至少部分地位于限定在致动构件中的通道中。 当处于第一位置时，销阻止致动构件相对于销的移动超过由通道限定的范围。 致动组件还包括退回系统，用于在将销从第一位置移动到第二位置时选择性地接合销。

    COMPRESSOR MONITORING METHOD
    9.
    发明申请
    COMPRESSOR MONITORING METHOD 有权
    压缩机监控方法

    公开(公告)号：US20160130974A1

    公开(公告)日：2016-05-12

    申请号：US14924042

    申请日：2015-10-27

    申请人： ROLLS-ROYCE PLC

    发明人： David Andre ELYSEE

    IPC分类号： F01D21/00 ,  F02C9/26

    CPC分类号： F01D21/003 ,  F01D19/00 ,  F01D21/14 ,  F02C9/26 ,  F04D27/001 ,  F04D27/0292 ,  F05D2200/12 ,  F05D2220/3216 ,  F05D2260/821 ,  F05D2270/101 ,  F05D2270/3013 ,  F05D2270/44

    摘要： A method of predicting the condition of a compressor with respect to rotating stall is disclosed. The method comprises the steps of: i) comparing the difference between the largest and smallest values of a variable occurring during a time period with a difference threshold, the variable at any given time being dependent on the compressor exit pressure at that time, and ii) predicting either that the compressor is in rotating stall or that the compressor is not in rotating stall in dependence upon the result of the comparison.

    摘要翻译： 公开了一种预测压缩机相对于转动档位的状态的方法。 该方法包括以下步骤：i）将在一段时间内发生的变量的最大值与最小值之差与差值阈值进行比较，任何给定时间的变量取决于当时的压缩机出口压力，ii ）根据比较结果预测压缩机处于旋转失速或压缩机未处于转动状态。

    Rotating catcher for impeller containment
    10.
    发明授权
    Rotating catcher for impeller containment 有权
    旋转捕集器用于叶轮收容

    公开(公告)号：US08807918B2

    公开(公告)日：2014-08-19

    申请号：US12818409

    申请日：2010-06-18

    申请人： Behzad Hagshenas

    发明人： Behzad Hagshenas

    IPC分类号： F01B25/16

    CPC分类号： F04D27/0292 ,  F01D5/048 ,  F01D21/045 ,  F04D29/284 ,  F05D2220/50 ,  F05D2300/702

    摘要： An impeller for use in a containment structure has a hub, a blade attaching to the hub for compressing air as the blade rotates with the hub, and an annulus disposed about the hub whereby the annulus reduces an effect of the hub breaking apart such that a weight of the containment structure is reduced.

    摘要翻译： 用于容纳结构的叶轮具有轮毂，叶片附接到轮毂，用于当叶片随轮毂旋转时压缩空气，以及围绕轮毂设置的环形空间，由此环形物减小轮毂破裂的影响，使得 容重结构的重量减少。