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    Method and arrangement for sealing off a separating gap, formed between a rotor and a stator, in a non-contacting manner
    2.
    发明授权
    Method and arrangement for sealing off a separating gap, formed between a rotor and a stator, in a non-contacting manner 有权
    用于以不接触的方式密封形成在转子和定子之间的分离间隙的方法和装置

    公开(公告)号：US6164655A

    公开(公告)日：2000-12-26

    申请号：US213429

    申请日：1998-12-17

    Applicant: Mihajlo Bothien ,  Joachim Bremer ,  Jurg Greber ,  Markus Loos ,  Ulf Christian Muller ,  Dirk Wunderwald

    Inventor： Mihajlo Bothien ,  Joachim Bremer ,  Jurg Greber ,  Markus Loos ,  Ulf Christian Muller ,  Dirk Wunderwald

    IPC: F01D11/02 ,  F16J15/447

    CPC classification number: F01D11/02 ,  F16J15/447

    Abstract: The object of the invention is to provide an improved method for sealing off the separating gap, formed between a rotor and a stator, in a non-contacting manner, with which method the service life of the components involved can be increased. In addition, an arrangement for carrying out the method is to be shown. According to the invention, this is achieved in that the flow layers (35, 36), having different circumferential velocities, of the working fluid (18) are divided after the choking action into a first partial flow (35') having a high circumferential velocity and a second partial flow (36') having a low circumferential velocity, the first partial flow (35') is merely deflected, only the second partial flow (36') is swirled and is finally directed parallel to the deflected first partial flow (35') into the latter. To this end, the opposing surface (24) of the choke point (22) is designed as a flow divider for the working fluid (18). The vortex chamber (23) adjoins the flow divider (24) and is arranged further upstream than the feed duct (29) for the next sealing element (21).

    Abstract translation: 本发明的目的是提供一种用于以非接触的方式密封形成在转子和定子之间的分离间隙的改进方法，通过该方法可以增加所涉及部件的使用寿命。 此外，将示出用于执行该方法的装置。 根据本发明，这是因为具有不同周向速度的工作流体（18）的流动层（35,36）在窒息作用之后被分割成具有高周向的第一部分流（35'） 速度和具有低圆周速度的第二部分流（36'），第一部分流（35'）仅被偏转，仅第二部分流（36'）旋转并且最终平行于偏转的第一部分流 （35'）进入后者。 为此，阻塞点（22）的相对表面（24）被设计为工作流体（18）的分流器。 涡流室（23）毗邻分流器（24）并且被布置在用于下一个密封元件（21）的进料管道（29）的上游。

    Method and arrangement for cooling the flow in radial gaps formed between rotors and stators of turbomachines
    4.
    发明授权
    Method and arrangement for cooling the flow in radial gaps formed between rotors and stators of turbomachines 失效
    用于冷却在涡轮机的转子和定子之间形成的径向间隙中的流动的方法和装置

    公开(公告)号：US06416281B1

    公开(公告)日：2002-07-09

    申请号：US09404466

    申请日：1999-09-24

    Applicant: Joachim Bremer ,  Michajlo Bothien ,  Jürg Greber ,  Ulf Christian Müller ,  Dirk Wunderwald ,  Helmut Gieszauf

    Inventor： Joachim Bremer ,  Michajlo Bothien ,  Jürg Greber ,  Ulf Christian Müller ,  Dirk Wunderwald ,  Helmut Gieszauf

    IPC: B63H114

    CPC classification number: F02C7/12 ,  F01D25/12 ,  F04D29/284 ,  F04D29/584

    Abstract: A method for cooling the flow in radial gaps formed between rotors and stators of turbomachines, which method is improved with regard to its cooling effect. In addition, a simple, cost-effective and robust arrangement for realizing the method is to be specified. According to the invention, this is achieved in that a first cooling fluid is admitted to a stator part adjacent to the radial gap and a second, gaseous cooling fluid is introduced into the radial gap. To this end, either at least one recess is formed in the interior of the stator part adjacent to the radial gap or at least one cavity is arranged at the stator part. The recess or the cavity is connected to both a feed line and a discharge line for the first cooling fluid. In addition, at least one feed passage as well as a discharge device for the second cooling fluid are arranged at the radial gap.

    Abstract translation: 一种在涡轮机的转子和定子之间形成的径向间隙中的流动的冷却方法，其冷却效果得到改善。 此外，要指定用于实现该方法的简单，成本有效和鲁棒的布置。 根据本发明，这是通过使第一冷却流体进入与径向间隙相邻的定子部分，并且将第二气态冷却流体引入到径向间隙中。 为此，至少一个凹部形成在与径向间隙相邻的定子部分的内部中，或者至少一个空腔布置在定子部分处。 凹部或空腔连接到用于第一冷却流体的进料管线和排出管线。 此外，至少一个进料通道以及用于第二冷却流体的排出装置布置在径向间隙处。

    Centrifugal compressor
    5.
    发明授权
    Centrifugal compressor 有权
    离心式压缩机

    公开(公告)号：US06190123B1

    公开(公告)日：2001-02-20

    申请号：US09316066

    申请日：1999-05-21

    Applicant: Dirk Wunderwald ,  Martin Thiele

    Inventor： Dirk Wunderwald ,  Martin Thiele

    IPC: F01D1100

    CPC classification number: F04D29/584 ,  F02M39/00 ,  F02M55/025 ,  F04D29/0516 ,  F04D29/284 ,  F05D2220/40

    Abstract: The object of the invention is to provide a method of operating a simply constructed centrifugal compressor equipped, in the region of the rear wall of the compressor impeller, with no sealing elements in the separating gap between the compressor impeller and the compressor casing, which method increases the service life of the centrifugal compressor. An appliance for carrying out the method is also to be made available. In accordance with the invention, this is achieved by introducing a cooling medium into the separating gap downstream of the leakage flow of the working medium and by finally removing this again after the cooling process has taken place. For this purpose, at least one supply duct for a gaseous cooling medium, the duct penetrating the compressor casing, opening into the separating gap in the region of the rear wall of the compressor impeller and directed onto the rear wall, and at least one removal duct for the cooling medium are arranged in the compressor casing.

    Abstract translation: 本发明的目的是提供一种操作简单构造的离心压缩机的方法，所述离心压缩机在压缩机叶轮的后壁区域中没有在压缩机叶轮和压缩机壳体之间的分离间隙中没有密封元件，该方法 提高离心式压缩机的使用寿命。 也可以使用用于执行该方法的设备。 根据本发明，这是通过将冷却介质引入到工作介质的泄漏流下游的分离间隙中，并且在冷却过程发生之后再次将其再次除去来实现的。 为此目的，用于气态冷却介质的至少一个供应管道，穿过压缩机壳体的管道，在压缩机叶轮的后壁的区域中的分离间隙中并且被引导到后壁上，并且至少一个移除 用于冷却介质的管道布置在压缩机壳体中。

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