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14 条记录 (耗时 0.032 秒)

    Inter-rotor bearing assembly
    2.
    发明授权
    Inter-rotor bearing assembly 失效
    转子间轴承总成

    公开(公告)号：US5971706A

    公开(公告)日：1999-10-26

    申请号：US984627

    申请日：1997-12-03

    申请人： David G. Glista ,  David W. Crall ,  Christopher C. Glynn

    发明人： David G. Glista ,  David W. Crall ,  Christopher C. Glynn

    IPC分类号： F01D5/06 ,  F01D11/00 ,  F01D25/16 ,  F16C15/00 ,  F16C33/62 ,  F16C35/067 ,  F01D25/00 ,  F03B11/00 ,  F03B11/06

    CPC分类号： F16C35/067 ,  F01D25/16 ,  F16C15/00 ,  Y02T50/672 ,  Y10S384/911 ,  Y10S384/912

    摘要： An inter-rotor bearing assembly includes a first annular member having a circumferential inner surface and a second annular member having a circumferential outer surface. The outer surface is concentric to and disposed radially inward of the inner surface and a bearing is disposed between the surfaces. The bearing has an outer race fixedly attached to the first annular member along the inner surface, an inner race fixedly attached to the second annular member along the outer surface, and rolling elements disposed between the races. A low density high circumferential strength support ring is fixedly attached to the first annular member disposed concentrically outside of the inner race and is preferably made of a titanium matrix composite. The rolling elements may be cylindrical rollers having cylindrical rolling surfaces. The support ring may be fixedly attached around or integral with the first annular member.

    摘要翻译： 转子间轴承组件包括具有周向内表面的第一环形构件和具有周向外表面的第二环形构件。 外表面与内表面同心于并且设置在径向内侧，并且轴承设置在表面之间。 轴承具有沿着内表面固定地连接到第一环形构件的外圈，沿着外表面固定地附接到第二环形构件的内座圈和设置在座圈之间的滚动元件。 低密度高周向强度支撑环固定地附接到同心地设置在内圈外部的第一环形构件，并且优选地由钛基复合材料制成。 滚动元件可以是具有圆柱形滚动表面的圆柱滚子。 支撑环可以固定地附接在第一环形构件周围或与第一环形构件成一体。

    Blade assembly with splitter shroud
    4.
    发明授权
    Blade assembly with splitter shroud 失效
    带分流器护罩的叶片组件

    公开(公告)号：US5988980A

    公开(公告)日：1999-11-23

    申请号：US925345

    申请日：1997-09-08

    申请人： Bruce C. Busbey ,  David W. Crall ,  Michael D. Toye

    发明人： Bruce C. Busbey ,  David W. Crall ,  Michael D. Toye

    IPC分类号： F01D5/20 ,  F01D5/14 ,  F01D5/22 ,  F01D5/34 ,  F01D11/00

    CPC分类号： F01D5/34 ,  F01D11/001 ,  F01D5/143 ,  F01D5/225 ,  Y02T50/673

    摘要： A blade assembly, which may have blisk for a gas turbine engine, includes an annular rim disposed about a rotor axis and a blade assembly disposed around the rim. The blade assembly has circumferentially disposed and radially extending inner and outer rows of inner and outer airfoils, respectively and each airfoil has axially spaced apart leading and trailing airfoil edges. An annular shroud is disposed between and connecting the inner and outer rows of inner and outer airfoils and has axially spaced apart annular leading and trailing shroud edges corresponding to the leading and trailing airfoil edges, respectively. An axially extending cavity is provided in each of the leading and trailing shroud edges for reducing stresses in leading and trailing airfoil edges, respectively and the corresponding airfoil edges are located near the cavities. The cavities preferably extend axially under the corresponding airfoil edges. The cavities may be 360 degree circumferentially extending annular grooves in one embodiment.

    摘要翻译： 可以具有用于燃气涡轮发动机的叶片的叶片组件包括围绕转子轴线设置的环形边缘和围绕边缘设置的叶片组件。 叶片组件分别具有周向设置和径向延伸的内部和外部排的内部和外部翼型件，并且每个翼型件具有轴向间隔开的前部和后部翼型边缘。 环形护罩设置在内翼片和外翼片的内排和外排之间，并且分别具有与前和后翼型边缘相对应的轴向隔开的环形前和后护罩边缘。 每个前后护罩边缘都有一个轴向延伸的空腔，用于分别减小前翼和后翼面的应力，相应的翼型边缘位于空腔附近。 空腔优选地在对应的翼型边缘下轴向延伸。 在一个实施例中，空腔可以是360度的周向延伸的环形凹槽。

    Turbofan engine with a core driven supercharged bypass duct
    8.
    发明授权
    Turbofan engine with a core driven supercharged bypass duct 失效
    Turbofan发动机带有核心驱动的增压旁路管道

    公开(公告)号：US5809772A

    公开(公告)日：1998-09-22

    申请号：US625498

    申请日：1996-03-29

    申请人： Rollin G. Giffin, III ,  James E. Johnson ,  David W. Crall ,  John W. Salvage ,  Peter N. Szucs

    发明人： Rollin G. Giffin, III ,  James E. Johnson ,  David W. Crall ,  John W. Salvage ,  Peter N. Szucs

    IPC分类号： F02K3/075 ,  F02K3/02 ,  F02K3/07

    CPC分类号： F02K3/075

    摘要： A multiple bypass turbofan engine including a core engine assembly has a fan bypass duct radially outward of the core engine assembly and has first and second inlets disposed between forward and aft fans driven by a low pressure turbine and a core engine turbine respectively. An inlet duct having an annular duct wall is disposed radially inward of the bypass duct and connects the second inlet to the bypass duct and has disposed within a supercharger means for compressing air which is drivingly connected to the core turbine. One embodiment of the aft fan may have radially inner and outer rows of aft fan vane airfoils separated by a non-rotatable portion of the annular duct wall such that the outer row of aft fan vane airfoils are disposed in the inlet duct and at least one of the aft fan vane airfoils is and, preferably, all of which are, independently variable. Radially inner and outer rows of aft fan rotor blade airfoils separated by a rotatable portion of the annular duct wall such that the outer row of aft fan rotor blade airfoils are disposed in the inlet duct adjacent to and longitudinally aft of radially inner and outer rows of aft fan vane airfoils, respectively. The radially outer rows of aft fan vane and rotor blade airfoils provide the supercharger means.

    摘要翻译： 包括核心发动机组件的多旁路涡扇发动机发动机具有在核心发动机组件的径向外侧的风扇旁通管道，并且分别设置有由低压涡轮机和核心发动机涡轮机驱动的前后风扇之间的第一和第二入口。 具有环形管道壁的入口管路设置在旁路管道的径向内侧，并将第二入口连接到旁路管道，并且设置在增压器装置中，用于压缩驱动地连接到核心涡轮机的空气。 后风扇的一个实施例可以具有由环形管道壁的不可旋转部分分开的后排风扇叶片翼片的径向内部和外部排，使得外部行的后部风扇叶片翼型件设置在入口管道中，并且至少一个 后翼形叶片翼型件，并且优选地，所有这些都是独立可变的。 前后风扇转子叶片翼片的内排和外排由环形管道壁的可旋转部分分开，使得外排风扇转子叶片翼型件的外排设置在入口管道中，并且沿径向的内排和外排 后扇叶片翼型。 后风扇叶片和转子叶片翼型件的径向外排提供增压装置。

    Methods and systems for assembling rotatable machines
    10.
    发明授权
    Methods and systems for assembling rotatable machines 有权
    组装旋转机器的方法和系统

    公开(公告)号：US07497662B2

    公开(公告)日：2009-03-03

    申请号：US11461123

    申请日：2006-07-31

    申请人： Daniel E. Mollmann ,  Thomas R. Henning ,  David W. Crall ,  Matthew A. Oakland ,  Todd M. Dahling

    发明人： Daniel E. Mollmann ,  Thomas R. Henning ,  David W. Crall ,  Matthew A. Oakland ,  Todd M. Dahling

    IPC分类号： F01D5/26

    CPC分类号： F01D5/027 ,  F01D5/26 ,  F01D5/3007 ,  F04D29/322 ,  F04D29/34 ,  F05D2230/60 ,  F05D2260/96 ,  Y02T50/672 ,  Y02T50/673 ,  Y10S416/50

    摘要： A method of ordering blades in a rotatable machine that includes a plurality of blades that extend radially outwardly from a rotor is provided. The method includes receiving at least one geometric parameter measurement of each blade in a row of blades, determining a maximum difference of at least one of the received geometric parameter measurements between adjacent blades in the row of blades, determining a vector sum of at least one of the received geometric parameter measurements, determining a plurality of moment weight vector sums of the rotor, and determining, using a computer, a sequence map of each blade using the maximum difference of the at least one geometric parameter measurement between adjacent blades in the row of blades, the vector sum of the at least one received geometric parameter measurement, and the plurality of moment weight vector sums.

    摘要翻译： 提供了一种在包括从转子径向向外延伸的多个叶片的可旋转机器中订购叶片的方法。 该方法包括：接收一行叶片中的每个叶片的至少一个几何参数测量，确定叶片行中相邻叶片之间接收的几何参数测量值中的至少一个的最大差异，确定至少一个 确定所接收的几何参数测量值，确定所述转子的多个力矩权重矢量和，以及使用计算机使用所述行中的相邻刀片之间的所述至少一个几何参数测量的最大差来确定每个刀片的序列图 的刀片，所述至少一个接收的几何参数测量的矢量和和所述多个力矩权重向量和。