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    • 2. 发明授权
    • Multi-stage centrifugal pump (axial face seal)
    • 多级离心泵(轴面密封)
    • US08366388B2
    • 2013-02-05
    • US12720735
    • 2010-03-10
    • Aage BruhnLars Ostergaard
    • Aage BruhnLars Ostergaard
    • F04D29/12
    • F04D29/126
    • An axial face seal (13), which seals a pump housing in the region of the pump shaft (12), is constructed in an axially compact manner. Spring holders (24, 25), which transmit the required pressing force of a compression spring (23), are connected to one another with a positive fit in a rotation direction, and hold a rotating axial face seal ring (19) in a rotationally fixed manner to the pump shaft (12). The spring holders (24, 25) are compact and enclose an abutment ring (33) for pump impellers as well as the compression spring (23). A motor-side spring (24) engages over the rotating axial face seal ring (19), by which an axially extremely short constructional length is achieved.
    • 在泵轴(12)的区域中密封泵壳体的轴向面密封件(13)以轴向紧凑的方式构造。 传递压缩弹簧(23)所需的按压力的弹簧保持器(24,25)在旋转方向上以正配合彼此连接,并且旋转地保持旋转的轴向面密封环(19) 固定到泵轴(12)。 弹簧保持器(24,25)是紧凑的并且包围用于泵叶轮以及压缩弹簧(23)的抵接环(33)。 电动机侧弹簧(24)接合在旋转的轴向面密封环(19)上方,由此实现轴向极短的结构长度。
    • 5. 发明申请
    • ROTATIONAL DIRECTION INDICATOR
    • 旋转方向指示器
    • US20110123375A1
    • 2011-05-26
    • US12994549
    • 2009-04-27
    • Lars OstergaardCarsten Norgard
    • Lars OstergaardCarsten Norgard
    • F04D29/58H02K9/06G01D13/00
    • F04D29/584F04B2205/05G01F1/28H02K9/06H02K11/21
    • The inventive rotational direction indicator for an electric motor having a cooling fan has a baffle element which can be moved between two positions and which can be arranged on an electric motor with a cooling fan in such a way that the baffle element is positioned in an airstream of the cooling fan whose direction depends on the rotational direction of the electric motor, and said baffle element is respectively moved into one of its two positions by said electric motor as a function of the direction of the airstream. The rotational direction indicator has a display unit which is designed to visually indicate the position of the baffle element and can be arranged on an outer side of the electric motor. In addition, the rotational direction indicator has a display actuating unit which connects the display unit and baffle element to one another, and transmits the position of the baffle element to the display unit.
    • 具有冷却风扇的电动机的本发明旋转方向指示器具有挡板元件,该挡板元件可以在两个位置之间移动,并且其可以布置在具有冷却风扇的电动机上,使得挡板元件位于气流中 所述冷却风扇的方向取决于所述电动机的旋转方向,并且所述挡板元件根据所述气流的方向被所述电动机分别移动到其两个位置中的一个位置。 旋转方向指示器具有显示单元,该显示单元设计成可视地指示挡板元件的位置,并且可以布置在电动机的外侧。 此外,旋转方向指示器具有显示致动单元,其将显示单元和挡板元件彼此连接,并且将挡板元件的位置传递到显示单元。