ATE556929T1 - Rotorblatt und hubschrauber mit einem solchem blatt - Google Patents

Rotorblatt und hubschrauber mit einem solchem blatt

Info

Publication number
ATE556929T1
ATE556929T1 AT11001288T AT11001288T ATE556929T1 AT E556929 T1 ATE556929 T1 AT E556929T1 AT 11001288 T AT11001288 T AT 11001288T AT 11001288 T AT11001288 T AT 11001288T AT E556929 T1 ATE556929 T1 AT E556929T1
Authority
AT
Austria
Prior art keywords
blade
twist
swept
back segment
unit
Prior art date
Application number
AT11001288T
Other languages
English (en)
Inventor
Jean-Francois Hirsch
Jacques Gaffiero
Original Assignee
Eurocopter France
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43012470&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE556929(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eurocopter France filed Critical Eurocopter France
Application granted granted Critical
Publication of ATE556929T1 publication Critical patent/ATE556929T1/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/467—Aerodynamic features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/463—Blade tips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
    • B64C13/24—Transmitting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
    • B64C23/06—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • 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
    • 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
    • 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)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Toys (AREA)
  • Hinges (AREA)
AT11001288T 2010-03-23 2011-02-17 Rotorblatt und hubschrauber mit einem solchem blatt ATE556929T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1001141A FR2957893B1 (fr) 2010-03-23 2010-03-23 Pale de voilure tournante, aeronef a voilure tournante muni d'une telle pale

Publications (1)

Publication Number Publication Date
ATE556929T1 true ATE556929T1 (de) 2012-05-15

Family

ID=43012470

Family Applications (1)

Application Number Title Priority Date Filing Date
AT11001288T ATE556929T1 (de) 2010-03-23 2011-02-17 Rotorblatt und hubschrauber mit einem solchem blatt

Country Status (6)

Country Link
US (1) US20110236208A1 (de)
EP (1) EP2371711B1 (de)
KR (1) KR20110106818A (de)
CN (1) CN102198858B (de)
AT (1) ATE556929T1 (de)
FR (1) FR2957893B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105366047A (zh) * 2014-08-19 2016-03-02 刘祖学 直升机新旋翼
US9592910B1 (en) 2015-12-18 2017-03-14 Amazon Technologies, Inc. Geometrically reconfigurable propellers
US10287006B1 (en) * 2015-12-18 2019-05-14 Amazon Technologies, Inc. Adjustable propeller blades for sound control
US10370098B1 (en) * 2015-12-18 2019-08-06 Amazon Technologies, Inc. Adjustable propeller blade with sound flaps
CN105923155B (zh) * 2016-06-08 2018-11-23 南京航空航天大学 一种用于旋翼飞行器的低噪声桨叶
CN106218886B (zh) * 2016-08-18 2024-08-20 上海未来伙伴机器人有限公司 多旋翼机桨叶以及多旋翼机
US20180127085A1 (en) * 2016-11-07 2018-05-10 Troy Churchill Propeller
US10899440B2 (en) * 2017-03-09 2021-01-26 Sikorsky Aircraft Corporation Rotor blade tip design for improved hover and cruise performance
US20190136868A1 (en) * 2017-11-07 2019-05-09 Troy Churchill Propeller
CN112173075B (zh) * 2020-09-25 2022-12-30 中国直升机设计研究所 一种直升机低噪声旋翼桨叶气动外形
IT202100032258A1 (it) * 2021-12-22 2023-06-22 Cofimco Srl Pala di ventilatore assiale industriale

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455866A (en) * 1946-08-19 1948-12-07 Kaman Aircraft Corp Aircraft of rotary wing type
US3002711A (en) * 1956-09-05 1961-10-03 Fairchild Stratos Corp Helicopter
US2994384A (en) * 1957-12-09 1961-08-01 Kaman Aircraft Corp Helicopter with jet driven rotor
US3589831A (en) * 1969-11-10 1971-06-29 Kaman Corp Control system for rotary wing vehicle
US5387083A (en) 1992-12-23 1995-02-07 Alliedsignal Inc. Helicopter servoflap actuator having mechanical stop and oil pump
GB2280412A (en) * 1993-07-15 1995-02-01 Nigel Howard Mckrill Helicopter rotor controlled by light signals.
US5626312A (en) 1994-07-06 1997-05-06 Mcdonnell Douglas Corporation Piezoelectric actuator
US5508589A (en) * 1994-12-14 1996-04-16 Archdekin; James M. Power saving voltage reduction system for high intensity discharge lighting systems
US5505589A (en) * 1994-12-28 1996-04-09 Bergey; Karl H. Controllable variable twist rotor blade assembly
GB2298624A (en) * 1995-03-04 1996-09-11 Nigel Howard Mckrill Light controlled helicopter rotor blade
JPH09254894A (ja) * 1996-03-26 1997-09-30 Commuter Herikoputa Senshin Gijutsu Kenkyusho:Kk フラップ付ヘリコプタブレードおよびこれを用いたロータ制御装置
FR2784351B1 (fr) * 1998-10-12 2000-12-08 Eurocopter France Dispositif et procede pour reduire les vibrations engendrees sur la structure d'un aeronef a voilure tournante, notamment un helicoptere
US6135713A (en) 1999-01-19 2000-10-24 The Mcdonnell Douglas Helicopter Company Helicopter rotor blade flap actuator government interest
JP2000255495A (ja) * 1999-03-04 2000-09-19 Mitsubishi Heavy Ind Ltd メインロータ用ブレード
US6513762B2 (en) 1999-05-18 2003-02-04 Diversified Technologies, Inc. Flap actuator system
JP3644497B2 (ja) * 2001-04-16 2005-04-27 防衛庁技術研究本部長 回転翼航空機のロータ・ブレード
US7424988B2 (en) 2001-05-24 2008-09-16 Mcdonnell Helicopter Company Llc Use of aerodynamic forces to assist in the control and positioning of aircraft control surfaces and variable geometry systems
US7165945B2 (en) * 2003-08-22 2007-01-23 Sikorsky Aircraft Corporation Braided spar for a rotor blade and method of manufacture thereof
EP1666355B1 (de) 2003-08-29 2012-10-24 Kawada Industries, Inc. Verfahren und vorrichtung zur verringerung des lärms von hubschrauberblattwirbeln
US6984109B2 (en) * 2003-12-04 2006-01-10 Sikorsky Aircraft Corporation Rotor blade pitch control assembly
FR2865189B1 (fr) * 2004-01-21 2007-02-16 Eurocopter France Pale de voilure tournante a double fleche et effilement limites.
FR2892382B1 (fr) * 2005-10-26 2007-12-07 Eurocopter France Pale de giravion munie d'un volet orientable a l'aide d'au moins une rotule principale dont le premier arbre est solidaire de ladite pale.
US20070131820A1 (en) * 2005-12-09 2007-06-14 Sikorsky Aircraft Corporation Rotorcraft control system and method of using
US7857598B2 (en) * 2006-06-26 2010-12-28 Aerovel Corporation Variable-twist rotor blade controlled by hub pitch angle and rotational speed
FR2912990B1 (fr) * 2007-02-23 2009-04-24 Eurocopter France Pale de giravion pourvue d'un troncon radial et d'au moins un troncon en fleche avant et/ou arriere

Also Published As

Publication number Publication date
EP2371711A1 (de) 2011-10-05
FR2957893A1 (fr) 2011-09-30
US20110236208A1 (en) 2011-09-29
CN102198858A (zh) 2011-09-28
FR2957893B1 (fr) 2013-04-05
EP2371711B1 (de) 2012-05-09
KR20110106818A (ko) 2011-09-29
CN102198858B (zh) 2015-05-20

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