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WO2011015880A3 - Rotor drive assembly for a rotorcraft - Google Patents

Rotor drive assembly for a rotorcraft Download PDF

Info

Publication number
WO2011015880A3
WO2011015880A3 PCT/GB2010/051307 GB2010051307W WO2011015880A3 WO 2011015880 A3 WO2011015880 A3 WO 2011015880A3 GB 2010051307 W GB2010051307 W GB 2010051307W WO 2011015880 A3 WO2011015880 A3 WO 2011015880A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotorcraft
hub
drive assembly
rotor drive
rotors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2010/051307
Other languages
French (fr)
Other versions
WO2011015880A2 (en
Inventor
Christopher Patrick Jarvis
Guy Jonathan James Rackham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2011015880A2 publication Critical patent/WO2011015880A2/en
Publication of WO2011015880A3 publication Critical patent/WO2011015880A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B64C27/14—Direct drive between power plant and rotor hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C27/48—Root attachment to rotor head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
    • B64C27/59—Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Toys (AREA)
  • Retarders (AREA)

Abstract

A rotor assembly (5) for a rotorcraft, such as a helicopter, comprises a plurality of rotors (7) rotatable about a hub (17), and a drive means arranged to drive the rotors (7) at a radial distance away from the hub (17).Each rotor (7) may be mounted on the hub (17) via a mounting (29) and the drive means may be arranged to drive the rotors (7) at a location radially outward of the mounting (29). The mounting may be slideably moveable around the circumference of the hub (17).
PCT/GB2010/051307 2009-08-07 2010-08-06 Rotor drive assembly for a rotorcraft Ceased WO2011015880A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0913835A GB2472452A (en) 2009-08-07 2009-08-07 A rotor drive assembly for a rotorcraft
GB0913835.5 2009-08-07

Publications (2)

Publication Number Publication Date
WO2011015880A2 WO2011015880A2 (en) 2011-02-10
WO2011015880A3 true WO2011015880A3 (en) 2011-04-07

Family

ID=41129811

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/051307 Ceased WO2011015880A2 (en) 2009-08-07 2010-08-06 Rotor drive assembly for a rotorcraft

Country Status (2)

Country Link
GB (1) GB2472452A (en)
WO (1) WO2011015880A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113086181B (en) * 2021-04-11 2022-08-19 燕山大学 One-rotation three-movement parallel driving device for helicopter umbrella stand rotor wing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1879323A (en) * 1931-07-16 1932-09-27 Koch Emery Aircraft
US2273303A (en) * 1939-11-28 1942-02-17 Francoise J De Bouchelle Helicopter type airship
FR2620106A1 (en) * 1987-09-07 1989-03-10 Bourquardez Gaston Light helicopter with two contrarotating rotors
US20070181741A1 (en) * 2005-05-26 2007-08-09 Sikorsky Aircraft Corporation De-rotation system for a counter-rotating, coaxial rotor hub shaft fairing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10356231A1 (en) * 2003-12-02 2005-06-30 Zf Friedrichshafen Ag Helicopter main gearbox has a driven collector wheel that can be used with any of at least two exchangeable rotor masts of different diameters
WO2005100154A1 (en) * 2004-04-13 2005-10-27 Wavefront Technology Pty Ltd System for rotor head and rotor blade
US7434764B2 (en) * 2005-12-02 2008-10-14 Sikorsky Aircraft Corporation Variable speed gearbox with an independently variable speed tail rotor system for a rotary wing aircraft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1879323A (en) * 1931-07-16 1932-09-27 Koch Emery Aircraft
US2273303A (en) * 1939-11-28 1942-02-17 Francoise J De Bouchelle Helicopter type airship
FR2620106A1 (en) * 1987-09-07 1989-03-10 Bourquardez Gaston Light helicopter with two contrarotating rotors
US20070181741A1 (en) * 2005-05-26 2007-08-09 Sikorsky Aircraft Corporation De-rotation system for a counter-rotating, coaxial rotor hub shaft fairing

Also Published As

Publication number Publication date
WO2011015880A2 (en) 2011-02-10
GB0913835D0 (en) 2009-09-16
GB2472452A (en) 2011-02-09

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