Invention Grant
US08398360B2 Method and device for resisting wear from particle containing water on an impeller 有权
用于抵抗叶轮上含水颗粒的磨损的方法和装置

  • Patent Title: Method and device for resisting wear from particle containing water on an impeller
  • Patent Title (中): 用于抵抗叶轮上含水颗粒的磨损的方法和装置
  • Application No.: US13384151
    Application Date: 2010-07-12
  • Publication No.: US08398360B2
    Publication Date: 2013-03-19
  • Inventor: Ole Gunnar Dahlhaug
  • Applicant: Ole Gunnar Dahlhaug
  • Applicant Address: NO
  • Assignee: Dynavec AS
  • Current Assignee: Dynavec AS
  • Current Assignee Address: NO
  • Agency: Akerman Senterfitt
  • Priority: NO20092682 20090715
  • International Application: PCT/NO2010/000282 WO 20100712
  • International Announcement: WO2011/008107 WO 20110120
  • Main IPC: F04D27/00
  • IPC: F04D27/00
Method and device for resisting wear from particle containing water on an impeller
Abstract:
A method and a device for counteracting wear from particle bearing drive water in a runner (4) in a water turbine (1), the runner (4) comprising a runner hub (16) and a vane (18), or a runner hub (16), a vane (18) and a runner band (20), the vane (18) being attached to the runner hub (16) in a first attachment area (22) and to the runner band (20) in a second attachment area (24), and where the method comprises: —routing a supply channel (40) for water cleaner than the drive water to at least the first attachment area (22) or the second attachment area (24) and—leading water cleaner than the drive water to flow over at least a portion of the vane (18) surface.
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