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    • 1. 发明授权
    • Fan case design with metal foam between Kevlar
    • 凯夫拉尔风扇外壳采用金属泡沫设计
    • US06652222B1
    • 2003-11-25
    • US10200460
    • 2002-09-03
    • Czeslaw WojtyczkaSamy Amin
    • Czeslaw WojtyczkaSamy Amin
    • F01D2100
    • F01D21/045B32B3/12B32B5/18F05D2220/326F05D2220/327F05D2300/433F05D2300/601F05D2300/612F05D2300/614
    • A fan blade fragment containment assembly for a gas turbine engine having a fan case surrounding the fan and having a circumferential axially extending blade fragment impact zone. An inner relatively slack or low tension deformable layer of Kevlar™ or Zylon™ fabric is mounted to the fan case outer surface and envelopes the impact zone. A compressible (ex. metal foam or honeycomb) layer is mounted on an outer surface of the deformable layer. A friction reduction layer of Teflon™ is mounted on an outer surface of the compressible layer and an outer relatively taut higher tension containment layer of Kevlar™ or Zylon™ fabric is mounted on an outer surface of the friction reduction layer. The friction reduction layer enhances the distribution of impact forces about the circumference of the compressible layer by reducing local shear stresses between the compressible layer and the containment layer.
    • 一种用于燃气涡轮发动机的风扇叶片碎片容纳组件,其具有围绕所述风扇且具有周向轴向延伸的叶片碎片冲击区的风扇壳体。 Kevlar TM或Zylon TM织物的内部相对松弛或低张力可变形层被安装到风扇壳体外表面并且包围冲击区域。 可压缩(例如金属泡沫或蜂窝)层安装在可变形层的外表面上。 Teflon TM的摩擦减小层安装在可压缩层的外表面上,Kevlar TM或Zylon TM织物的外部较紧张的较高张力的容纳层安装在摩擦减小层的外表面上 。 摩擦减小层通过减小可压缩层和容纳层之间的局部剪切应力来增强围绕可压缩层的圆周的冲击力的分布。
    • 7. 发明授权
    • Gas turbine engine blade containment assembly
    • 燃气轮机发动机叶片安全壳组件
    • US06497550B2
    • 2002-12-24
    • US09804298
    • 2001-03-13
    • Stephen J Booth
    • Stephen J Booth
    • F01D2100
    • F01D21/045Y02T50/671
    • A gas turbine engine fan blade containment assembly (38) comprising a generally cylindrical, or frustoconical, metal casing (40) has an upstream portion (56), a blade containment portion (54) and a transition portion (58). The upstream portion (56) has a flange (52) connecting the metal containment casing (40) to an axially adjacent casing. The upstream portion (56) of the casing (40) has a greater diameter (D1) than the diameter (D2) of the blade containment portion (54) and the blade containment portion (54) has a greater thickness (T2) than the thickness (T1) of the upstream portion (54). The transition portion (58) connects the blade containment portion (54) and the upstream portion (56) to transmit loads from the blade containment portion (54) to the upstream flange (42). The transition portion (58) has a smoothly curved increase in diameter between the blade containment portion (54) and the upstream portion (56) whereby the transition portion (58) is allowed to flex to reduce impact loads transmitted to the upstream flange (42).
    • 包括大致圆柱形或截头圆锥形的金属壳体(40)的燃气涡轮发动机风扇叶片容纳组件(38)具有上游部分(56),叶片容纳部分(54)和过渡部分(58)。 上游部分(56)具有将金属容纳壳体(40)连接到轴向相邻壳体的凸缘(52)。 壳体(40)的上游部分(56)具有比叶片容纳部分(54)的直径(D2)更大的直径(D1),并且叶片容纳部分(54)的厚度(T2)比 上游部分(54)的厚度(T1)。 过渡部分(58)连接叶片容纳部分(54)和上游部分(56),以将载荷从叶片容纳部分(54)传递到上游凸缘(42)。 过渡部分(58)在叶片容纳部分(54)和上游部分(56)之间具有平滑弯曲的直径增加,从而允许过渡部分(58)弯曲以减少传递到上游凸缘(42)的冲击载荷 )。
    • 9. 发明授权
    • Relating to compressors and turbines
    • 关于压缩机和涡轮机
    • US06264424B1
    • 2001-07-24
    • US09168953
    • 1998-10-09
    • John Fuller
    • John Fuller
    • F01D2100
    • F04D25/04F01D21/045F04D29/023F04D29/4206F05B2260/3011F05D2220/40F05D2300/133
    • A centripetal compressor includes a compressor housing, a compressor wheel mounted within the housing and having compressor blades. The compressor housing comprises a cover plate and a diffuser flange that is fixed to both the cover plate and to a bearing housing. The diffuser member has an outer peripheral portion attached to the cover plate and a radially inner portion attached to the bearing housing. A frangible groove or weakened section is defined in the diffuser at a position intermediate the outer peripheral and the radially inner portions so as to enable predictable fracture of the diffuser flange during failure of the compressor wheel. The same principle is applied to the turbine of a turbocharger.
    • 向心式压缩机包括压缩机壳体,安装在壳体内并具有压缩机叶片的压缩机叶轮。 压缩机壳体包括盖板和固定到盖板和轴承壳体的扩散器凸缘。 扩散器构件具有附接到盖板的外周部分和附接到轴承壳体的径向内部。 在扩散器中在外周和径向内部中间的位置处限定易碎的凹槽或弱化部分,以便在压缩机叶轮故障期间能够预测到扩散器凸缘的断裂。 相同的原理应用于涡轮增压器的涡轮机。
    • 10. 发明授权
    • Gas turbine containment casing
    • 燃气轮机安全壳
    • US06179551B2
    • 2001-01-30
    • US09324942
    • 1999-06-03
    • Sivasubramaniam K SathianathanMichael R LawsonSunil V Charadva
    • Sivasubramaniam K SathianathanMichael R LawsonSunil V Charadva
    • F01D2100
    • F01D21/045Y02T50/671
    • A containment casing for a gas turbine engine comprising a substantially rigid casing shell arranged in operation coaxially with an axis of rotation of the gas turbine engine. The casing extending circumferentially around an array of fan rotor blades which are arranged to rotate about the engine axis. In the region of the casing where it is predicted blade impact in the event of a fan blade failure, there is at least one reinforcing rib extending substantially radially from the casing and circumscribing the outer periphery of the casing shell. The ribs providing improved strengthening of the casing. Preferably a first rib is positioned about the casing between the operational position of the trailing edge and the mid chord point of the fan blade. A second rib is axially positioned between the operational position of the mid chord point and the leading edge of the fan blade. A third rib may also be positioned axially forward of the operational position of the leading edge of the fan blade. Also described are various ratios of the reinforcing ribs and the casing shell thickness to provide and improved lightweight casing.
    • 一种用于燃气涡轮发动机的容纳壳体,包括与燃气涡轮发动机的旋转轴线同轴地布置的基本上刚性的壳体壳体。 围绕围绕发动机轴线旋转的风扇转子叶片阵列周向延伸的壳体。 在壳体的在风扇叶片故障的情况下被预测的叶片冲击的区域中,存在至少一个从壳体径向延伸并且限制壳体外周的加强肋。 这些肋骨提供了改进的套管强化。 优选地,第一肋围绕壳体定位在后缘的操作位置和风扇叶片的中间弦点之间。 第二肋轴向地定位在中和点的操作位置和风扇叶片的前缘之间。 第三肋也可以轴向位于风扇叶片的前缘的操作位置的前方。 还描述了加强肋和壳体壳体厚度的各种比例,以提供和改进的轻质外壳。