EP3672869A4 - A drive mechanism - Google Patents

A drive mechanism Download PDF

Info

Publication number
EP3672869A4
EP3672869A4 EP18848216.0A EP18848216A EP3672869A4 EP 3672869 A4 EP3672869 A4 EP 3672869A4 EP 18848216 A EP18848216 A EP 18848216A EP 3672869 A4 EP3672869 A4 EP 3672869A4
Authority
EP
European Patent Office
Prior art keywords
drive mechanism
drive
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.)
Withdrawn
Application number
EP18848216.0A
Other languages
German (de)
French (fr)
Other versions
EP3672869A1 (en
Inventor
Michael Andrew STEARNS
Marc Mignard
Srinivasan K. Ganapathi
W. James MCKEEFERY
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.)
Vimaan Robotics Inc
Original Assignee
Vimaan Robotics Inc
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 Vimaan Robotics Inc filed Critical Vimaan Robotics Inc
Publication of EP3672869A1 publication Critical patent/EP3672869A1/en
Publication of EP3672869A4 publication Critical patent/EP3672869A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary
    • 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
    • B64C27/54—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
    • B64C27/68—Transmitting means, e.g. interrelated with initiating means or means acting on blades using electrical energy, e.g. having electrical power amplification
    • 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
    • B64C27/72—Means acting on blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • B64U10/13—Flying platforms
    • B64U10/14—Flying platforms with four distinct rotor axes, e.g. quadcopters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00—Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20—Rotors; Rotor supports
    • B64U30/21—Rotary wings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/10—Propulsion
    • B64U50/11—Propulsion using internal combustion piston engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/10—Propulsion
    • B64U50/19—Propulsion using electrically powered motors
    • 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
    • B64C27/72—Means acting on blades
    • B64C2027/7205—Means acting on blades on each blade individually, e.g. individual blade control [IBC]
    • B64C2027/7211—Means acting on blades on each blade individually, e.g. individual blade control [IBC] without flaps
    • B64C2027/7216—Means acting on blades on each blade individually, e.g. individual blade control [IBC] without flaps using one actuator per blade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/30—Wing lift efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Remote Sensing (AREA)
  • Ocean & Marine Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP18848216.0A 2017-08-23 2018-08-21 A drive mechanism Withdrawn EP3672869A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762549238P 2017-08-23 2017-08-23
US201762549250P 2017-08-23 2017-08-23
PCT/US2018/047322 WO2019040490A1 (en) 2017-08-23 2018-08-21 A drive mechanism

Publications (2)

Publication Number Publication Date
EP3672869A1 EP3672869A1 (en) 2020-07-01
EP3672869A4 true EP3672869A4 (en) 2021-05-26

Family

ID=65440155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18848216.0A Withdrawn EP3672869A4 (en) 2017-08-23 2018-08-21 A drive mechanism

Country Status (4)

Country Link
EP (1) EP3672869A4 (en)
JP (1) JP2020531366A (en)
CN (1) CN111065577A (en)
WO (1) WO2019040490A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11975829B2 (en) * 2019-07-23 2024-05-07 Panasonic Intellectual Property Management Co., Ltd. Motor unit and aircraft
JP7475895B2 (en) 2020-02-26 2024-04-30 Ｂｏｙｌｅ株式会社 Electrically controlled pitch aircraft
US11472544B2 (en) 2020-03-04 2022-10-18 Textron Innovations Inc. Electric drive system line replaceable unit with integrated collective actuation
US11565803B2 (en) 2020-03-04 2023-01-31 Textron Innovations Inc. Electric drive system line replaceable unit with integrated cyclic actuation
US11554859B2 (en) 2020-03-04 2023-01-17 Textron Innovations Inc. Electric drive system line replaceable unit with integrated thermal cooling
CN111516443B (en) * 2020-05-08 2021-07-13 中国人民解放军陆军炮兵防空兵学院 Hollow wheel multi-rotor aerocar
US11831220B2 (en) 2020-06-22 2023-11-28 Textron Innovations Inc. Electric motor stack with integral one-piece gearbox input shaft
US11390395B2 (en) 2020-06-25 2022-07-19 Textron Innovations Inc. Aircraft rotor assembly with segmented input shaft for electric motor stack and gearbox unit
CN112644703A (en) * 2020-12-01 2021-04-13 上海航天控制技术研究所 Magnetic variable-pitch main rotor system
US11814163B2 (en) 2021-01-13 2023-11-14 Textron Innovations Inc. Electric tiltrotor aircraft with tilting coaxial motors and gearbox
CN113232850B (en) * 2021-05-11 2022-06-03 重庆大学 Main transmission system of coaxial double-rotor helicopter
CN113928540B (en) * 2021-11-19 2023-10-27 中国直升机设计研究所 Helicopter inertia displacement rotor wing
CN114148507B (en) * 2021-12-31 2023-11-03 广东汇天航空航天科技有限公司 Pitch control device and aircraft
WO2023246424A1 (en) * 2022-06-22 2023-12-28 亿航智能设备（广州）有限公司 Electrically controlled variable pitch propeller, and multirotor and control method therefor
CN117022641B (en) * 2023-10-09 2023-12-08 安徽羲禾航空科技有限公司 Pitch-variable propeller based on electric control adjustment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149372A (en) * 1983-11-09 1985-06-12 Gec Avionics System for producing angular displacement
JPS621690A (en) * 1985-06-27 1987-01-07 Fukashi Uragami Variable pitch propeller
US5281094A (en) * 1991-05-13 1994-01-25 Alliedsignal Inc Electromechanical apparatus for varying blade of variable-pitch fan blades
EP0652154A1 (en) * 1993-11-10 1995-05-10 Hispano-Suiza Control method and device of the variable pitch of rotor blades

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282719A (en) * 1991-05-13 1994-02-01 Alliedsignal Inc. Quad mode fan pitch actuation system for a gas turbine engine
US5249924A (en) * 1992-02-21 1993-10-05 Southwest Aerospace Corporation RAM air turbine
US6499952B1 (en) * 1997-02-28 2002-12-31 The Boeing Company Shape memory alloy device and control method
WO2005100154A1 (en) * 2004-04-13 2005-10-27 Wavefront Technology Pty Ltd System for rotor head and rotor blade
EP2028099B1 (en) * 2007-08-22 2010-09-15 Ingo Bader Propulsion system with a controllable pitch propeller
FR2923456B1 (en) * 2007-11-08 2009-12-18 Eurocopter France AIRCRAFT WITH SILENT CARE ROTOR
US8197205B2 (en) * 2008-04-24 2012-06-12 The Boeing Company Swashplateless helicopter blade actuation system
CN101376433B (en) * 2008-10-10 2010-11-10 南京航空航天大学 Helicopter rotor operation method and system
PL2551198T3 (en) * 2011-07-29 2014-03-31 Agustawestland Spa Convertiplane
EP2821344B1 (en) * 2013-07-02 2015-10-14 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Rotor drive system
CN203623961U (en) * 2013-12-24 2014-06-04 深圳市大疆创新科技有限公司 Screw pitch varying device, as well as rotor wing suite and multi-rotor-wing aircraft using same
EP2990332A1 (en) * 2014-08-19 2016-03-02 Tau Emerald Rotors Inc. Controlling rotary wing aircraft
NO342415B1 (en) * 2016-08-31 2018-05-22 FLIR Unmanned Aerial Systems AS Controlling blade pitch by a plurality of electric motors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149372A (en) * 1983-11-09 1985-06-12 Gec Avionics System for producing angular displacement
JPS621690A (en) * 1985-06-27 1987-01-07 Fukashi Uragami Variable pitch propeller
US5281094A (en) * 1991-05-13 1994-01-25 Alliedsignal Inc Electromechanical apparatus for varying blade of variable-pitch fan blades
EP0652154A1 (en) * 1993-11-10 1995-05-10 Hispano-Suiza Control method and device of the variable pitch of rotor blades

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019040490A1 *

Also Published As

Publication number Publication date
CN111065577A (en) 2020-04-24
JP2020531366A (en) 2020-11-05
EP3672869A1 (en) 2020-07-01
WO2019040490A1 (en) 2019-02-28

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