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34 条记录 (耗时 0.025 秒)

    Clearance distribution to reduce the leakage area
    2.
    发明授权
    Clearance distribution to reduce the leakage area 有权
    间隙分布减少泄漏面积

    公开(公告)号：US06167771A

    公开(公告)日：2001-01-02

    申请号：US09208866

    申请日：1998-12-10

    申请人： Keshava B. Kumar ,  James W. Bush

    发明人： Keshava B. Kumar ,  James W. Bush

    IPC分类号： F16H5517

    CPC分类号： F04C18/084 ,  Y10T74/19953

    摘要： Zero clearance screw rotor profiles are modified by determining clearance requirements at spaced points on the profiles and varying the clearance distribution between adjacent points using a non-linear distribution. Additionally, when the clearances are put in the rotors, zero clearance is maintained between the rotors in the contact band which is maintained near the pitch circle.

    摘要翻译： 通过确定轮廓上间隔点处的间隙要求并使用非线性分布改变相邻点之间的间隙分布，来修改零间隙螺杆转子轮廓。 此外，当间隙放置在转子中时，在保持在节圆附近的接触带中的转子之间保持零间隙。

    Conjugate screw rotor profile
    3.
    发明授权
    Conjugate screw rotor profile 失效
    共轭螺杆转子轮廓

    公开(公告)号：US6139299A

    公开(公告)日：2000-10-31

    申请号：US87576

    申请日：1998-05-29

    申请人： Keshava B. Kumar ,  James W. Bush

    发明人： Keshava B. Kumar ,  James W. Bush

    IPC分类号： F04C18/16 ,  F01C1/08 ,  F04C18/08 ,  F01C1/16

    CPC分类号： F01C1/084

    摘要： The point of tangency of the tip circle of the male rotor and the root circle of the female rotor is used as a starting point in generating the series of curves defining the male and female conjugate rotor profiles. The present invention provides: reduced viscous drag through the use of a departure angle; strengthened female lobes by controlling thickness along the pitch circle; opened root of male rotor to enhance manufacturability and tool life; a tortuous leakage path for gas traveling from a high pressure thread to a low pressure thread; better control of root diameter; and control of the pressure angle independently of the other variables.

    摘要翻译： 将阳转子的尖端圆和母转子的根圆的切线点用作产生限定公和母共轭转子轮廓的一系列曲线的起始点。 本发明提供：通过使用离开角减小粘性阻力; 通过控制节圆的厚度加强雌花瓣; 打开雄性转子根，提高生产性和刀具寿命; 用于从高压螺纹向低压螺纹行进的气体的曲折泄漏路径; 更好地控制根直径; 并独立于其他变量控制压力角。

    Integrated strut design for mid-turbine frames with U-base
    5.
    发明授权
    Integrated strut design for mid-turbine frames with U-base 有权
    具有U型底座的中型涡轮机框架的集成支柱设计

    公开(公告)号：US07775049B2

    公开(公告)日：2010-08-17

    申请号：US11397157

    申请日：2006-04-04

    申请人： Keshava B. Kumar ,  Nagendra Somanath ,  William A. Sowa

    发明人： Keshava B. Kumar ,  Nagendra Somanath ,  William A. Sowa

    IPC分类号： F02C7/20 ,  F03D11/00

    CPC分类号： F01D25/162 ,  F01D25/24

    摘要： A mid-turbine frame connected to at least one mount of a gas turbine engine transfers a first load from a first bearing and a second load from a second bearing to the mount. The mid-turbine frame includes a single point load structure and a plurality of struts. The single point load structure combines the first load and the second load into a combined load. The plurality of struts is connected to the single point load structure and transfers the combined load from the single point load structure to the mount.

    摘要翻译： 连接到燃气涡轮发动机的至少一个安装座的中涡轮机框架将第一负载从第一轴承和第二负载从第二轴承传递到安装件。 中涡轮机架包括单点负载结构和多个支柱。 单点负载结构将第一负载和第二负载组合成组合负载。 多个支柱连接到单点负载结构，并将组合的负载从单点负载结构传递到安装座。

    Inverted stiffened shell panel torque transmission for loaded struts and mid-turbine frames
    6.
    发明授权
    Inverted stiffened shell panel torque transmission for loaded struts and mid-turbine frames 有权
    负载支柱和中型涡轮机框架的倒置加强壳板扭矩传递

    公开(公告)号：US07677047B2

    公开(公告)日：2010-03-16

    申请号：US11392167

    申请日：2006-03-29

    申请人： Nagendra Somanath ,  Keshava B. Kumar ,  Joseph James Sedor

    发明人： Nagendra Somanath ,  Keshava B. Kumar ,  Joseph James Sedor

    IPC分类号： F02C7/20

    CPC分类号： F01D25/162 ,  Y02T50/671

    摘要： A mid-turbine frame connected to at least one mount of a gas turbine engine transfers a first load from a first bearing and a second load from a second bearing to the mount. The mid-turbine frame includes a plurality of inverted panels and a plurality of struts. The inverted panels convert the first and second loads to a shear flow. The struts are connected to the inverted panels and transfer the shear flow to the mount.

    摘要翻译： 连接到燃气涡轮发动机的至少一个安装座的中涡轮机框架将第一负载从第一轴承和第二负载从第二轴承传递到安装件。 中涡轮机架包括多个倒置的面板和多个支柱。 倒置的面板将第一和第二负载转换成剪切流。 支柱连接到倒置的面板，并将剪切流传递到底座。

    Embedded mount for mid-turbine frame
    7.
    发明授权
    Embedded mount for mid-turbine frame 有权
    中型涡轮机架的嵌入式安装

    公开(公告)号：US07594404B2

    公开(公告)日：2009-09-29

    申请号：US11494032

    申请日：2006-07-27

    申请人： Nagendra Somanath ,  Keshava B. Kumar ,  William A. Sowa

    发明人： Nagendra Somanath ,  Keshava B. Kumar ,  William A. Sowa

    IPC分类号： F02C7/20

    CPC分类号： F01D25/162 ,  F05D2250/241 ,  F05D2250/60 ,  Y02T50/671

    摘要： An engine casing for a mid-turbine frame having a plurality of radially extending struts includes a ring structure and at least one mount. The ring structure has an interior surface, an exterior surface, and a plurality of equally spaced dimples along the exterior surface and protruding from the interior surface. The ring structure is connected to each of the plurality of struts at the interior surface at the dimples. The mount is positioned within each of the dimples and transfers load to the engine casing.

    摘要翻译： 用于具有多个径向延伸的支柱的中涡轮机框架的发动机壳体包括环形结构和至少一个支架。 环形结构具有内表面，外表面和沿着外表面并从内表面突出的多个等间隔的凹坑。 环形结构在凹坑的内表面处连接到多个支柱中的每一个。 安装座位于每个凹坑内，并将负载传递到发动机外壳。

    Tailorable design configuration topologies for aircraft engine mid-turbine frames
    9.
    发明授权
    Tailorable design configuration topologies for aircraft engine mid-turbine frames 有权
    飞机发动机中涡轮机架可靠的设计配置拓扑

    公开(公告)号：US08707710B2

    公开(公告)日：2014-04-29

    申请号：US12562776

    申请日：2009-09-18

    申请人： Nagendra Somanath ,  Keshava B. Kumar

    发明人： Nagendra Somanath ,  Keshava B. Kumar

    IPC分类号： F02C7/20

    CPC分类号： F01D25/162 ,  F01D25/24 ,  F01D25/28 ,  F05D2250/22

    摘要： An expandable mid-turbine frame assembly includes a first bearing cone, a second bearing cone and a mid-turbine frame. The mid-turbine frame assembly connects to a gas turbine engine casing and transfers a first load from a first bearing and a second load from a second bearing towards the engine casing. The first bearing cone transfers the first load from the first bearing. The second bearing cone transfers the second load from the second bearing. The mid-turbine frame is connected to the first and second bearing cones and includes segments. Each segment includes a pre-stressed support for equilibrating the first and second loads.

    摘要翻译： 可膨胀的中涡轮机架组件包括第一轴承锥，第二轴承锥和中涡轮机架。 中间涡轮机框架组件连接到燃气涡轮发动机壳体并且将第一负载从第一轴承和第二负载从第二轴承传递到发动机壳体。 第一个轴承锥从第一个轴承传送第一个负载。 第二轴承锥从第二轴承传递第二负载。 中涡轮机架连接到第一和第二轴承锥并且包括段。 每个部分包括用于平衡第一和第二负载的预应力支撑件。