Invention Grant
US08640985B2 Co-rotating stacked rotor disks for improved hover performance 有权
共同旋转的堆叠转子盘,以提高悬停性能

  • Patent Title: Co-rotating stacked rotor disks for improved hover performance
  • Patent Title (中): 共同旋转的堆叠转子盘,以提高悬停性能
  • Application No.: US13321429
    Application Date: 2009-05-22
  • Publication No.: US08640985B2
    Publication Date: 2014-02-04
  • Inventor: John E. Brunken, Jr.
  • Applicant: John E. Brunken, Jr.
  • Applicant Address: US RI Providence
  • Assignee: Textron Innovations Inc.
  • Current Assignee: Textron Innovations Inc.
  • Current Assignee Address: US RI Providence
  • Agent James E. Walton
  • International Application: PCT/US2009/044963 WO 20090522
  • International Announcement: WO2010/134924 WO 20101125
  • Main IPC: B64C27/00
  • IPC: B64C27/00
Co-rotating stacked rotor disks for improved hover performance
Abstract:
The system of the present application represents a rotor hub for a rotorcraft and a rotorcraft incorporating the rotor hub. The rotor hub is represented as having multiple rotor disk assemblies, each rotor disk assembly rotating in the same direction about the same mast axis of rotation. In the preferred embodiment, each rotor disk assembly has three rotor blades. The upper rotor disc assembly and the lower rotor disk assembly are separated by approximately 2.5% of the rotor disk diameter, at least to take advantage of “wake contraction”.
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