ROTOR BLADE FOR AXIAL FLOW ROTARY MACHINE

    公开(公告)号:JP2002188406A

    公开(公告)日:2002-07-05

    申请号:JP2000366583

    申请日:2000-12-01

    Abstract: PROBLEM TO BE SOLVED: To provide a cooling structure for a trailing edge region of a rotor blade, having an acceptable level of capability of being cast for its manufacture, as well as blade stress and metal temperature at an acceptable level under the running conditions. SOLUTION: An airfoil has heat transfer parts (106, 108, 112) at its rearmost part of the trailing edge region, and these heat transfer parts include a row of flow dividers (112) that extend in the direction of the vane chord. At least one of these flow dividers (112) includes a sidewall (144) that radially faces inward and a sidewall (142) that radially faces outward, with a diffusion angle αof the sidewall (144) radially facing inward being greater than diffusion angel βof the sidewall (142) radially facing outward.

    COOLABLE AIRFOIL
    2.
    发明专利

    公开(公告)号:JPH11107702A

    公开(公告)日:1999-04-20

    申请号:JP22391698

    申请日:1998-08-07

    Abstract: PROBLEM TO BE SOLVED: To provide a coolable airfoil or vane, which can operate at a high temperature for a long time but requires a minimal amount of coolant. SOLUTION: A blade or vane for a gas turbine engine includes a main cooling system 42 having a series of intermediate passages 44, 46a, 46b, 46c, and 48, and a subordinate cooling system 92 having a series of cooling ducts 94 (94a to 94h). The ducts of subordinate cooling system 92, being parallel to and having the same radial extent with the intermediate passages, are installed between the intermediate passages 44, etc., and outer surface 28 of the airfoil and within a surrounding wall 16. The ducts are installed within high temperature load regions 104 and 106 in the direction of a chord so as to maximize efficiency. The ducts are recommended to have the same extent in the direction of a chord in several intermediate passages in order to avoid an excessive rise in coolant temperature within the intermediate passages. The length of the duct in the direction of a chord is limited so as not to generate a temperature gradient, with could lead to failure, at airfoil wall 16.

    FANNED TRAILING EDGE TEARDROP ARRAY
    3.
    发明申请

    公开(公告)号:WO2006025847A3

    公开(公告)日:2006-05-26

    申请号:PCT/US2005000784

    申请日:2005-01-07

    Abstract: A component for use in a gas turbine engine is provided. The component has an airfoil portion with a plurality of internal cooling passages and a non-linear trailing edge. The component further has a non-linear array of teardrop shaped assemblies which form a plurality of injection slots for injecting a coolant fluid into a fluid passing over the airfoil portion. The teardrop shaped assemblies are designed to maximize thermal performance of the component by reducing a relative diffusion angle between the injected coolant flow and the streamline direction of the fluid passing over the airfoil portion.

    Abstract translation: 提供了用于燃气涡轮发动机的部件。 该部件具有带有多个内部冷却通道和非线性后缘的翼型部分。 该部件还具有泪珠形组件的非线性阵列,其形成多个注入槽,用于将冷却剂流体注入到流过翼型部分的流体中。 泪滴状组件被设计成通过减小喷射的冷却剂流与经过翼型部分的流体的流线方向之间的相对扩散角来使部件的热性能最大化。

    TRAILING EDGE OR TIP FLAG ANTIFLOW SEPARATION
    4.
    发明申请
    TRAILING EDGE OR TIP FLAG ANTIFLOW SEPARATION 审中-公开
    跟踪边缘或提示标签防流动分离

    公开(公告)号:WO2013141949A2

    公开(公告)日:2013-09-26

    申请号:PCT/US2013020973

    申请日:2013-01-10

    Abstract: An airfoil includes a leading edge, a trailing edge region, a suction surface, a pressure surface, a cooling passageway, and a column of flow separators. The trailing edge region is located axially downstream from the leading edge and terminates in a trailing edge. The suction surface and the pressure surface both extend axially between the leading edge and the trailing edge region, as well as radially from a root section of the airfoil to a tip section of the airfoil to define a central cavity of the airfoil. The cooling passageway is located within the central cavity at the trailing edge region. The column of flow separators are located in the cooling passageway adjacent the trailing edge. The column of flow separators includes a first flow separator having a first longitudinal axis and a second flow separator having a second longitudinal axis. The first longitudinal axis is offset at an angle with respect to the first longitudinal axis.

    Abstract translation: 翼型件包括前缘,后缘区域,吸力表面,压力表面,冷却通道和流动隔板柱。 后缘区域位于前缘的轴向下游并终止于后缘。 吸力表面和压力表面都在前缘和后缘区域之间轴向延伸,并且从翼型的根部径向延伸到翼型的尖端部分,以限定翼型的中心腔。 冷却通道位于后缘区域的中心腔内。 流分离器柱位于靠近后缘的冷却通道中。 流分离器的柱包括具有第一纵向轴线的第一流动分离器和具有第二纵向轴线的第二流动分离器。 第一纵向轴线相对于第一纵向轴线以一定角度偏移。

    Cooled rotor blade with vibration damping device

    公开(公告)号:AU2004240221B2

    公开(公告)日:2007-02-08

    申请号:AU2004240221

    申请日:2004-12-17

    Abstract: A rotor blade (14) for a rotor assembly (10) is provided that includes a root (180, an airfoil (20), and a damper (24). The airfoil (20) includes a base (28), a tip (30), a pressure side wall (36), a suction side wall (38), and a cavity (40) disposed therebetween. The cavity (40) extends substantially between the base (28) and the tip (30), and includes a first cavity portion (44), a second cavity portion (46), and a channel (42) disposed between the first cavity portion (44) and the second cavity portion (46). A plurality of first pedestals (48) are disposed within the first cavity portion (44) adjacent the channel (42), and a plurality of second pedestals (48) are disposed within the second cavity portion (46) adjacent the channel (42). The damper (24) is selectively received within the channel (42).

    SPANWISELY VARIABLE DENSITY PEDESTAL ARRAY

    公开(公告)号:CA2481351A1

    公开(公告)日:2005-05-19

    申请号:CA2481351

    申请日:2004-09-13

    Abstract: A turbine engine component, such as a blade or vane, has a system for coolin g a trailing edge portion thereof. The system includes a plurality of rows of pedestals which vary in density along a span of the component. In a preferred embodiment of the present invention, the number of rows of pedestals increases as one moves along the span of the component from an inner diameter region to an outer diameter region.

    8.
    发明专利
    未知

    公开(公告)号:DE602004026814D1

    公开(公告)日:2010-06-10

    申请号:DE602004026814

    申请日:2004-09-17

    Abstract: A turbine engine component 10, such as a blade or vane, has a system for cooling a trailing edge portion thereof. The system includes a plurality of rows 24 of pedestals 26 which vary in density along a span of the component 10. In a preferred embodiment of the present invention, the number of rows 24 of pedestals 26 increases as one moves along the span of the component 10 from an inner diameter region 32 to an outer diameter region (30).

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