Mixed flow pump
    2.
    发明授权
    Mixed flow pump 有权
    混流泵

    公开(公告)号:US06595746B1

    公开(公告)日:2003-07-22

    申请号:US09647531

    申请日:2001-01-30

    IPC分类号: F04D2944

    CPC分类号: F04D29/444 F04D29/448

    摘要: A highly efficient mixed flow pump can prevent flow separation which is likely to occur in a corner portion of a flow passage of a diffuser section. The mixed flow pump includes a casing having an axis and defining an impeller section and a diffuser section disposed downstream of the impeller section with stationary diffuser blades protruding from a hub. The diffuser blades are formed so that an angular difference, between a hub blade angle and a casing blade angle, is chosen to conform to a specific distribution pattern along a flow passage of the diffuser section.

    摘要翻译: 高效混合流量泵可以防止在扩散器部分的流动通道的角部可能发生的流动分离。 混合流量泵包括具有轴线并限定叶轮部分的壳体和设置在叶轮部分下游的扩散器部分,其具有从轮毂突出的固定扩散器叶片。 扩散器叶片形成为使得在轮毂叶片角度和壳体叶片角度之间的角度差被选择成符合沿着扩散器部分的流动通道的特定分布图案。

    Turbomachinery impeller
    3.
    发明授权
    Turbomachinery impeller 有权
    涡轮机叶轮

    公开(公告)号:US06508626B1

    公开(公告)日:2003-01-21

    申请号:US09700842

    申请日:2001-01-04

    IPC分类号: F01D522

    CPC分类号: F04D29/2277 F04D29/284

    摘要: Disclosed is an impeller for a turbomachine. The impeller comprises a hub, full blades equidistantly disposed on the hub in a circumferential direction, and a splitter blade disposed between each adjacent two of the full blades. The splitter blade is shaped in such a way that a spanwise distribution of a pitchwise position of a leading edge of the splitter blade is determined according to a spanwise and pitchwise non-uniformity distribution of fluid velocity of a fluid flowing into the splitter blade, whereby a non-dimensional circumferential position of a leading edge of the splitter blade varies in a spanwise direction.

    摘要翻译: 公开了一种用于涡轮机的叶轮。 叶轮包括轮毂,沿圆周方向等距地设置在轮毂上的全部叶片,以及设置在每个相邻的两个完整叶片之间的分流叶片。 分流叶片成形为使得分流叶片的前缘的俯仰位置的翼展方向分布根据流入分流叶片的流体的流体速度和间距不均匀分布来确定,由此 分流叶片的前缘的无量纲圆周位置在翼展方向上变化。

    Turbomachinery and method of manufacturing the same
    4.
    发明授权
    Turbomachinery and method of manufacturing the same 失效
    涡轮机械及其制造方法

    公开(公告)号:US6062819A

    公开(公告)日:2000-05-16

    申请号:US945368

    申请日:1997-10-23

    摘要: An impeller in a turbomachinery has blades designed such that reduced static pressure difference .DELTA.Cp between the hub and the shroud on the suction surface of the blade shows a remarkably decreasing tendency near the impeller exit as it approaches the impeller exit between the impeller inlet and the impeller exit.

    摘要翻译: PCT No.PCT / GB95 / 02904 Sec。 371日期:1997年10月23日 102(e)日期1997年10月23日PCT 1995年12月7日PCT PCT。 出版物WO97 / 21035 日期1997年6月21日在涡轮机械中的叶轮具有叶片,其设计成使得在桨叶和叶片的吸力表面上的护罩之间减小的静压差DELTA Cp在叶轮出口附近显现出显着降低的趋势, 叶轮入口和叶轮出口。