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    • 3. 发明申请
    • SEAL
    • 密封
    • US20080267770A1
    • 2008-10-30
    • US10806277
    • 2004-03-23
    • John R. WebsterAnthony G. RazzellPhilip D. Brown
    • John R. WebsterAnthony G. RazzellPhilip D. Brown
    • F01D11/08
    • F16J15/0887F01D11/005F01D11/22F05D2250/61F05D2250/611F05D2300/505
    • A turbofan gas turbine engine (10) comprises a compressor rotor (24) carrying a plurality of circumferentially spaced radially extending rotor blades (26) and a casing (28) surrounding the compressor rotor (24) and compressor rotor blades (26). A compressor rotor blade tip seal (48) comprises an annular member (30) secured to and arranged within the casing (28). The annular member (40) has a plurality of circumferentially spaced axially extending corrugations (32) and a plurality of radially spaced circumferentially extending corrugations (34). A lining (40) is secured to and arranged within the annular member (30). The lining (40) is spaced radially from the tips (27) of the compressor rotor blades (26) to form a clearance (29). An actuator (56) is provided to move the annular member (30) and lining (40) radially to control the size of the clearance (29).
    • 涡轮风扇燃气涡轮发动机(10)包括承载多个周向间隔开的径向延伸的转子叶片(26)和围绕压缩机转子(24)的壳体(28)和压缩机转子叶片(26)的压缩机转子(24)。 压缩机转子叶片尖端密封件(48)包括固定到壳体(28)中并布置在壳体(28)内的环形构件(30)。 环形构件(40)具有多个周向间隔开的轴向延伸的波纹(32)和多个径向隔开的周向延伸的波纹(34)。 衬套(40)固定到环形构件(30)内并布置在环形构件(30)内。 衬套(40)与压缩机转子叶片(26)的尖端(27)径向间隔开以形成间隙(29)。 提供致动器(56)以径向移动环形构件(30)和衬里(40)以控制间隙(29)的尺寸。
    • 7. 发明授权
    • Sensor
    • 传感器
    • US08002517B2
    • 2011-08-23
    • US11905589
    • 2007-10-02
    • Anthony G. RazzellLee MansfieldLeo V. Lewis
    • Anthony G. RazzellLee MansfieldLeo V. Lewis
    • F04D29/08
    • G01D5/241F01D11/20F05D2270/821G01B7/14
    • Sensors (32, 52, 72) for determining a gap between a conductive member (34, 54, 74) such as a blade in a gas turbine engine and a seal segment (31, 51) are known to use capacitive variants in order to create an electrical signal indicative of the gap width. Thermal disparities can create problems with regard to sensor aging and accuracy. By creating a sensor incorporating a metal rod (33, 53, 74) typically integrally formed or associated with the seal segment (31, 51) and coupled through inductive coupling loops (35, 36; 55, 56; 75) it is possible to create a tuned circuit with a Q value which is more stable and therefore acceptable with regard to producing more accurate results at elevated temperatures with less problems with regard to thermal disparities.
    • 已知用于确定诸如燃气涡轮发动机中的叶片的导电构件(34,54,74)和密封段(31,51)之间的间隙的传感器(32,52,72)使用电容变型,以便 产生指示间隙宽度的电信号。 热差异可能会对传感器老化和精度造成问题。 通过产生一个传感器,该传感器包括通常与密封段(31,51)整体形成或相连的金属杆(33,53,74),并通过电感耦合回路(35,36; 55,56; 75)耦合, 创建具有更稳定的Q值的调谐电路,因此在高温下产生更准确的结果是可接受的,而在热差异方面较少的问题。
    • 8. 发明申请
    • Blade clearance arrangement
    • 刀片间隙安排
    • US20090297330A1
    • 2009-12-03
    • US11890520
    • 2007-08-07
    • Anthony G. RazzellJohn R. WebsterGeraint W. Jewell
    • Anthony G. RazzellJohn R. WebsterGeraint W. Jewell
    • F01D11/16
    • F01D11/22F05D2270/62Y02T50/671
    • Control of blade clearance gaps between rotating turbine blades and an associated casing in a gas turbine engine is important in order to maintain operational efficiency. It is desirable to achieve accurate gap control but previous passive and scheduled thermal gap adjustment systems have been relatively course. By provision of a winding through which a specific electrical current is passed in order to create electro-magnetic force for displacement of an armature associated with a seal forming part of the casing it is possible to adjust the gap between that seal and a tip part of a rotating blade assembly. Normally a blade gap monitoring technique is used in association with specific operational requirements with respect to the gap by the control in order to determine the electrical current presented to the winding. As a fail-safe measure a permanent magnet or bias or some other form can be provided to ensure displacement to a fail-safe position with an adequate blade gap clearance for continued operation should there be power failure or an excess electrical current presented to the winding.
    • 为了保持运行效率,控制旋转涡轮机叶片与燃气涡轮发动机中相关联的壳体之间的叶片间隙的重要性是重要的。 期望实现精确的间隙控制,但是先前的被动和调度的热间隙调节系统已经相对过程。 通过设置通过该绕组的绕组,以便产生电磁力,用于移动与形成壳体的一部分的密封件相关联的电枢,可以调节该密封件与顶盖部分之间的间隙 旋转叶片组件。 通常,刀片间隙监测技术与通过控制的间隙相关的特定操作要求结合使用,以确定呈现给绕组的电流。 作为故障安全措施,可以提供永磁体或偏压或其他形式,以确保在故障安全位置具有足够的叶片间隙以进行连续运行的位移,如果出现电源故障或过多的电流提供给绕组 。
    • 9. 发明授权
    • Electrical conductor winding and a method of manufacturing an electrical conductor winding
    • 电导体绕组和制造电导体绕组的方法
    • US06888439B2
    • 2005-05-03
    • US10690598
    • 2003-10-23
    • Anthony G. RazzellJohn J A CullenDiane Holland
    • Anthony G. RazzellJohn J A CullenDiane Holland
    • H01F27/28H01F41/04H02K3/18H02K3/26H02K3/30H02K3/52
    • H02K3/522H01F27/2804H01F41/041H02K3/18H02K3/26H02K3/30Y10T29/4902Y10T29/49071
    • An electrical conductor winding (70) comprises a plurality of laminates of electrical insulation (72). Each laminate of electrical insulation (72) has a slot (78) on one surface (76). Each laminate of electrical insulation (70) has an electrical conductor (82) arranged in the slot (78). An electrical connector (84) connects the electrical conductor (82) in one laminate of electrical insulation (78) with the electrical conductor (82) in an adjacent laminate of electrical insulation (72). The laminates of electrical insulation (72) are arranged such that the surface (74) of one laminate of electrical insulation (72) abuts and is bonded to the surface (76) of an adjacent laminate of electrical insulation (12). The laminates of electrical insulation (12) comprise a glass-ceramic material. The electrical conductor windings allow active magnetic bearings, electric motors and electric generators to be used at temperatures up to 500° C. for example in gas turbine engines.
    • 电导体绕组(70)包括多个电绝缘层叠体(72)。 电绝缘体(72)的每个层压体在一个表面(76)上具有狭槽(78)。 电气绝缘层(70)的每个层叠体具有布置在槽(78)中的电导体(82)。 电连接器(84)将一个电绝缘层(78)中的电导体(82)与电绝缘层(72)的相邻层压体中的电导体(82)连接。 电绝缘层叠体(72)被布置成使得电绝缘层(72)的一个层压体的表面(74)邻接并结合到相邻的电绝缘层压板(12)的表面(76)上。 电绝缘层压板(12)包括玻璃陶瓷材料。 电导体绕组允许主动磁轴承,电动机和发电机在高达500℃的温度下使用,例如在燃气涡轮发动机中。
    • 10. 发明授权
    • Compact electrical machine
    • 紧凑型电机
    • US06794781B2
    • 2004-09-21
    • US10406504
    • 2003-04-04
    • Anthony G. RazzellJohn J A Cullen
    • Anthony G. RazzellJohn J A Cullen
    • H02K1600
    • H02K7/11H02K7/1838H02K49/102Y02E10/725
    • An electrical machine comprises a combined magnetic gearbox and electrical generator. A first set of permanent magnets (30) are arranged on a rotor (16) to produce a spatially variable first magnetic field. A second set of permanent magnets (32) are arranged on a rotor (40,41,43), stationary pole pieces (36) are positioned between the first set of permanent magnets (30) and the second set of permanent magnets (32) to interfere with the first magnetic field. Rotation of the rotor (16) relative to the pole pieces (36) produces a second magnetic field which rotates the second set of permanent magnets (32). A stator (42) has windings (46) to transduce a changing second magnetic field produced by the rotation of the second set of permanent magnets (32) into an electrical voltage. The electrical machine is useful for a wind turbine generator. Alternatively the arrangement may be modified to produce an electrical motor.
    • 电机包括组合磁齿轮箱和发电机。 第一组永磁体(30)布置在转子(16)上以产生空间上可变的第一磁场。 第二组永磁体(32)设置在转子(40,41,43)上,固定极片(36)位于第一组永磁体(30)和第二组永磁体(32)之间, 以干扰第一磁场。 转子(16)相对于极片(36)的旋转产生使第二组永磁体(32)旋转的第二磁场。 定子(42)具有用于将由第二组永磁体(32)的旋转产生的变化的第二磁场转换成电压的绕组(46)。 电机对于风力发电机是有用的。 或者,可以修改该布置以产生电动马达。