Balancer for multistage centrifugal pumps

    公开(公告)号:US06568901B2

    公开(公告)日:2003-05-27

    申请号:US10014836

    申请日:2001-12-14

    IPC分类号: F04D2900

    CPC分类号: F04D29/0413 F04D29/0416

    摘要: A balancing arrangement which is used to relieve or take up axial thrust in a multistage centrifugal pump, having a balancing device with at least one axial gap (8) and at least one radial gap (6,7) and in which a balancing flow is conducted through the gaps, and having an axial bearing which receives remaining axial thrust. Associated with the axial bearing is a cardanic ring (10) which serves to offset alignment errors. Highly reliable operation with only low leakage losses is achieved by configuring the balancing device such that a residual thrust in the direction of the suction side of the pump exists in all operating conditons and the cardanic ring is designed such that it is elastically deformed by the residual thrust and has a spring constant such that the axial gap (s) will close from a maximum width position when the pump is at rest to a minimum width position during operation while still avoiding contact between the surfaces which define the axial gap.

    SOLAR CELL AND MANUFACTURING METHOD THEREOF
    6.
    发明申请
    SOLAR CELL AND MANUFACTURING METHOD THEREOF 审中-公开
    太阳能电池及其制造方法

    公开(公告)号:US20120298199A1

    公开(公告)日:2012-11-29

    申请号:US13116779

    申请日:2011-05-26

    IPC分类号: H01L31/0296 H01L31/18

    摘要: A solar cell includes a cathode component, an anode component, sealant for assembling the cathode component and the anode component to form a closed space, and electrolyte accommodated in the closed space, in which the cathode component contains a lower transparent conductive substrate, a nano-oxide semiconductor thin film formed on the lower transparent conductive substrate, and dye attached to a nano-particle surface of the nano-oxide semiconductor thin film; and the anode component contains an upper transparent conductive substrate, and an anode electrode layer formed on the upper transparent conductive substrate, the nano-oxide semiconductor thin film and the anode electrode layer being arranged opposite to each other and contacting with the electrolyte, in which the anode component further contains a CdTe layer which is patterned to have an opening, and the anode electrode layer is located in the opening of the CdTe layer.

    摘要翻译: 太阳能电池包括阴极部件,阳极部件,用于组装阴极部件和阳极部件以形成封闭空间的密封剂和容纳在封闭空间中的电解质,其中阴极部件包含下部透明导电基板,纳米 形成在下部透明导电性基板上的氧化物半导体薄膜和附着在纳米氧化物半导体薄膜的纳米粒子表面的染料; 并且所述阳极部件包含上部透明导电性基板,形成在所述上部透明导电性基板上的所述阳极电极层,所述纳米氧化物半导体薄膜和所述阳极电极层相对配置并与所述电解液接触, 阳极部件还包含被图案化以具有开口的CdTe层,并且阳极电极层位于CdTe层的开口中。