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公开(公告)号:US6073439A
公开(公告)日:2000-06-13
申请号:US34908
申请日:1998-03-04
申请人: David M Beaven , Kenneth F Udall
发明人: David M Beaven , Kenneth F Udall
CPC分类号: F16C27/04 , F01D21/045 , F05B2260/3011 , F16C19/26
摘要: A ducted fan gas turbine engine is provided with a fan which is carried by a shaft. Frangible fuse pins maintain the shaft carrying the fan coaxial with the engine longitudinal axis. In the event of severe fan damage, the fuse pins fracture and the fan shaft orbits about the engine longitudinal axis. An annular resilient member is provided to exert a radially inward restoration force upon the fan shaft following such an event in order to reduce vibration.
摘要翻译: 风管式燃气涡轮发动机配备有由轴承载的风扇。 易碎的保险丝销保持轴承与风扇与发动机纵轴同轴的轴。 在严重风扇损坏的情况下,保险丝销断裂,风扇轴围绕发动机纵向轴线运动。 提供环形弹性构件以在这种事件之后在风扇轴上施加径向向内的恢复力,以减少振动。
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公开(公告)号:US06098399A
公开(公告)日:2000-08-08
申请号:US20964
申请日:1998-02-10
申请人: Martyn Richards , John W Allen , Kenneth F Udall , David M Beaven
发明人: Martyn Richards , John W Allen , Kenneth F Udall , David M Beaven
CPC分类号: F16C19/52 , F01D21/045 , F01D25/16 , F16C35/077 , F05B2260/3011 , F16C19/26
摘要: A ducted fan gas turbine has a fan shaft which is supported at its upstream end by a bearing. In the event of damage to the engine's fan, frangible bolts fracture to permit radial movement of the shaft. That movement is limited by the sequential engagement of the outer race of the bearing with first and second movement limiting portions on fixed structure of the engine. This alters the natural frequency of vibration of the fan, so permitting the fan to windmill without excessive vibration.
摘要翻译: 风扇式燃气涡轮机具有风扇轴,其在其上游端由轴承支撑。 在发动机风扇损坏的情况下,易碎的螺栓破裂以允许轴的径向移动。 该运动受到轴承的外圈与发动机的固定结构上的第一和第二运动限制部分的顺序啮合的限制。 这改变了风扇的固有振动频率,从而允许风扇无风扇的振动。
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公开(公告)号:US6009701A
公开(公告)日:2000-01-04
申请号:US994652
申请日:1997-12-19
申请人: Christopher Freeman , Peter G G Farrar , Martyn Richards , John W Allen , Kenneth F Udall , David M Beaven
发明人: Christopher Freeman , Peter G G Farrar , Martyn Richards , John W Allen , Kenneth F Udall , David M Beaven
IPC分类号: F01D21/04 , F01D25/16 , F02C7/06 , F04D29/04 , F04D29/056 , F16C19/26 , F16C19/52 , F16C35/077 , F01D5/02
CPC分类号: F04D29/056 , F01D21/045 , F01D25/164 , F02C7/06 , F16C19/26 , F16C19/52 , F16C35/077 , F05B2260/3011 , F05D2220/327
摘要: A ducted fan gas turbine engine is provided with a fan which is carried by a shaft. A frangible fuse ring maintains the shaft carrying the fan coaxial with the engine longitudinal axis. In the event of severe fan damage, the fuse ring (28) fractures and the fan shaft orbits about the engine longitudinal axis. A pair of threaded members (39, 41), one of which is of generally frusto-conical configuration, cooperate as a result of the orbiting motion to restore the coaxial relationship between the fan shaft and the engine longitudinal axis.
摘要翻译: 风管式燃气涡轮发动机配备有由轴承载的风扇。 易碎的保险丝圈保持承载与发动机纵向轴线同轴的风扇的轴。 在严重的风扇损坏的情况下,熔断器环(28)断裂,风扇轴绕发动机纵向轴线运动。 其中一个具有大致截头圆锥形构造的一对螺纹构件(39,41)作为轨道运动的结果协作,以恢复风扇轴和发动机纵向轴线之间的同轴关系。
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公开(公告)号:US09145776B2
公开(公告)日:2015-09-29
申请号:US13483460
申请日:2012-05-30
申请人: Kenneth J Mackie , David M Beaven
发明人: Kenneth J Mackie , David M Beaven
CPC分类号: F01D5/30 , B64C11/06 , B64D2027/005 , F01D7/00 , F01D21/045 , F02C6/206 , F02K3/072 , F05D2260/36 , Y02T50/66 , Y02T50/672 , Y02T50/673 , Y10T29/49321
摘要: A blade assembly including: a hub which is rotatable about an axis; at least one blade having an aerofoil portion and a root, wherein the root is coupled to the hub using a primary retention device which prevents radial separation of the root and hub in normal use; and, a secondary retention device having a root part and a hub part, the root part being located radially inwards of the hub part in a retention cavity in use, wherein at least a portion of the root part enters the retention cavity via an interlock which prevents radial separation of the root and hub in the event of a primary retention device failure.
摘要翻译: 一种刀片组件,包括:可围绕轴线旋转的轮毂; 至少一个叶片具有机翼部分和根部,其中所述根部使用主保持装置联接到所述轮毂,所述主保持装置在正常使用中防止所述根部和轮毂的径向分离; 以及具有根部和轮毂部分的次要保持装置,所述根部在使用中位于保持腔中的所述轮毂部分的径向内侧,其中所述根部的至少一部分经由互锁件进入所述保持腔 在主保持装置发生故障的情况下防止根部和集线器的径向分离。
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公开(公告)号:US08453458B2
公开(公告)日:2013-06-04
申请号:US12087778
申请日:2007-01-23
CPC分类号: F02K3/06 , F02K1/08 , Y02T50/671
摘要: Variation in the available mixing plane areas in an exhaust arrangement of a gas turbine engine enables alteration and configuration for better thermal cycle performance of that engine. A shaped centre fairing is associated with an exit nozzle and a bypass duct such that channels between the fairing, nozzle exit and duct can be adjusted to change the available areas. Such variation is achieved by relative axial displacement, typically of the exit nozzle using an appropriate mechanism.
摘要翻译: 在燃气涡轮发动机的排气装置中的可用混合平面区域的变化使得能够改变和构造以获得该发动机的更好的热循环性能。 成形中心整流罩与出口喷嘴和旁路管道相关联,使得整流罩,喷嘴出口和管道之间的通道可以被调节以改变可用区域。 这种变化通过相对的轴向位移来实现,通常使用合适的机构来排出出口。
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公开(公告)号:US07296414B2
公开(公告)日:2007-11-20
申请号:US10954277
申请日:2004-10-01
CPC分类号: B64D27/16 , B64D27/26 , B64D2033/0286
摘要: A mounting assembly (10) for mounting a gas turbine engine on an aircraft. The assembly (10) comprising four equispaced hydraulic piston and cylinder thrust links (16) connecting between the engine fan case (12) and the air intake (14), which intake (14) is mounted to the airframe.
摘要翻译: 一种用于将燃气涡轮发动机安装在飞机上的安装组件(10)。 组件(10)包括连接在发动机风扇壳体(12)和进气口(14)之间的四个等间距的液压活塞和气缸推力连杆(16),该进气口(14)安装到机身上。
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