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    Turbine stator, steam turbine, and partition plate
    1.
    发明授权
    Turbine stator, steam turbine, and partition plate 有权

    公开(公告)号：US11655733B2

    公开(公告)日：2023-05-23

    申请号：US17274681

    申请日：2019-09-27

    申请人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION

    发明人： Katsumi Terada ,  Yuzo Tsurusaki

    IPC分类号： F01D25/24 ,  F01D9/04 ,  F01D11/02

    CPC分类号： F01D25/246 ,  F01D9/047 ,  F01D9/048 ,  F01D11/02 ,  F05D2220/31 ,  F05D2240/128 ,  F05D2240/14

    摘要： A turbine stator includes a partition plate including an inner ring that extends along a circumferential direction, an outer ring that is disposed on an outer side of the inner ring in a radial direction, and extends in the circumferential direction, a plurality of nozzles that are disposed in the circumferential direction between the inner ring and the outer ring, and are configured to guide a fluid from an upstream side toward a downstream side in an axial direction, and an annular protruding portion, protrudes from the outer ring to the downstream side in the axial direction, and extends along the outer ring in the circumferential direction, and a casing surrounding the partition plate from the outer side in the radial direction, and having a contact support surface that is in contact with the annular protruding portion from the downstream side in the axial direction.

    Discrete passage diffuser
    7.
    发明授权
    Discrete passage diffuser 有权
    离散通道扩散器

    公开(公告)号：US06589015B1

    公开(公告)日：2003-07-08

    申请号：US10140101

    申请日：2002-05-08

    申请人： Douglas Allan Roberts ,  André Denis LeBlanc ,  Suresh Chandra Kacker ,  Peter Ralph Townsend ,  Ioan Sasu

    发明人： Douglas Allan Roberts ,  André Denis LeBlanc ,  Suresh Chandra Kacker ,  Peter Ralph Townsend ,  Ioan Sasu

    IPC分类号： F01D904

    CPC分类号： F01D9/045 ,  F01D9/048 ,  F04D29/441 ,  F04D29/444 ,  F05D2250/52

    摘要： A centrifugal compressor includes an impeller and a diffuser. The impeller has an inner integral hub with vanes thereon, is adapted to rotate within an outer shroud about a central longitudinal axis, and has a defined hub-to-shroud distribution of fluid exit angles. The diffuser, downstream from the impeller, comprises a plurality of circumferentially spaced discrete passages at least partially defining fluid paths through the diffuser, and angled such that adjacent discrete passages intersect each other to form an annular semi-vaneless diffuser inlet space. The discrete passages downstream of the semi-vaneless space each have an inlet therefrom and an outlet with a greater cross-sectional area than the inlet. The intersection of the annular semi-vaneless space and each discrete passage defines a leading edge thereof. Each discrete passage is defined by a wall bounding a cross-sectional area, the wall comprising at least a first substantially rectilinear portion and a second opposed convexly curved portion; the first substantially rectilinear portion is adjacent the hub of the impeller and the second opposed convexly curved portion is adjacent the outer shroud. The leading edge of each discrete diffuser passage provides a close incidence angle match with the fluid exit angles of the impeller.

    摘要翻译： 离心压缩机包括叶轮和扩散器。 叶轮具有内部具有叶片的内部整体式轮毂，其适于围绕中心纵向轴线在外部护罩内旋转，并且具有限定的流体出口角度的轮毂对护罩分布。 在叶轮下游的扩散器包括多个周向间隔开的离散通道，其至少部分地限定通过扩散器的流体路径，并且成角度使得相邻的离散通道彼此相交以形成环形半无叶扩散器入口空间。 半无叶空间下游的离散通道各自具有入口和与入口相比更大的横截面面积的出口。 环形半无空间空间和每个离散通道的交点限定其前缘。 每个离散的通道由限定横截面积的壁限定，所述壁包括至少第一基本直线部分和第二相对的凸形弯曲部分; 第一大致直线部分邻近叶轮的轮毂并且第二相对的凸形弯曲部分邻近外护罩。 每个离散扩散通道的前缘提供与叶轮的流体出口角度的近似入射角度。

    Flow divider for radial-axial inlet housings
    8.
    发明授权
    Flow divider for radial-axial inlet housings 失效
    用于径向轴向入口外壳的分流器

    公开(公告)号：US5397216A

    公开(公告)日：1995-03-14

    申请号：US138095

    申请日：1993-10-20

    申请人： Franz Kreitmeier

    发明人： Franz Kreitmeier

    IPC分类号： F01D9/02 ,  F01D9/04 ,  F04D29/52

    CPC分类号： F01D9/023 ,  F01D9/048 ,  F04D29/522

    摘要： In a radial-axial inlet housing of rotating thermal machines, a flow divider is disposed in the turbine or compressor inlet, in front of the inlet and opposite the first turbine guide vane row or the compressor ribs. The flow divider in this case is disposed in the central lower stagnation point of the housing flow. It has a thick-headed profile with a straight median line. The rear side of the flow divider, seen in the direction of flow, is disposed perpendicularly to the rotary shaft at a distance from the first guide vane row or the ribs. There is a gap between the radially inner side of the flow divider and the housing wall, and the chord length of the flow divider decreases radially outwardly. The leading edge of the flow divider, seen in the direction of flow, is inclined like a straightened potential line relative to the housing wall.

    摘要翻译： 在旋转热机器的径向轴向入口壳体中，分流器设置在涡轮机或压缩机入口中，在入口前方并与第一涡轮机导叶叶片排或压缩机肋对置。 在这种情况下，分流器设置在壳体流动的中心下部停滞点。 它有一个粗直的轮廓，直线中线。 在流动方向上看到的分流器的后侧与第一导向叶片排或肋一定距离地垂直于旋转轴设置。 在分流器的径向内侧和壳体壁之间存在间隙，并且分流器的弦长径向向外减小。 在流动方向上看到的分流器的前缘相对于壳体壁倾斜成一个拉直的电位线。

    Twin scroll turbine housing
    10.
    发明授权
    Twin scroll turbine housing 有权

    公开(公告)号：US12116902B2

    公开(公告)日：2024-10-15

    申请号：US17692534

    申请日：2022-03-11

    申请人： Garrett Transportation I Inc.

    发明人： Tomas Hebnar ,  Jakub Vymyslicky ,  Michal Planka

    IPC分类号： F01D25/24 ,  F01D9/02 ,  F01D9/04

    CPC分类号： F01D25/246 ,  F01D9/026 ,  F01D9/047 ,  F01D25/24 ,  F01D9/045 ,  F01D9/048

    摘要： A turbine assembly can include a turbine housing that defines a longitudinal axis and that includes a first scroll and a first tongue at a first angle about the longitudinal axis and a second scroll and a second tongue at a second angle about the longitudinal axis, where an angular span between the first angle and the second angle is greater than 1 degree and less than 180 degrees; and a first set of vanes and a second set of vanes disposed in the turbine housing, where a vane of the first set of vanes is aligned with the first tongue and a vane of the second set of vanes is aligned with the second tongue.