DE3100800A1 - Hubschrauberrotorblatt - Google Patents

Hubschrauberrotorblatt

Info

Publication number
DE3100800A1
DE3100800A1 DE19813100800 DE3100800A DE3100800A1 DE 3100800 A1 DE3100800 A1 DE 3100800A1 DE 19813100800 DE19813100800 DE 19813100800 DE 3100800 A DE3100800 A DE 3100800A DE 3100800 A1 DE3100800 A1 DE 3100800A1
Authority
DE
Germany
Prior art keywords
blade
blade tip
rotor
tip
rotor blade
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Withdrawn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
DE19813100800
Other languages
German (de)
English (en)
Inventor
Evan Albern 06430 Fairfield Conn. Fradenburgh
William Donald 06484 Huntington Conn. Jepson
Robert Carlisle 06483 Seymour Conn. Moffitt
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.)
RTX Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of DE3100800A1 publication Critical patent/DE3100800A1/de
Withdrawn legal-status Critical Current

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
    • B64C27/463—Blade tips

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Toys (AREA)
DE19813100800 1980-01-21 1981-01-13 Hubschrauberrotorblatt Withdrawn DE3100800A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/114,131 US4324530A (en) 1980-01-21 1980-01-21 Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency

Publications (1)

Publication Number Publication Date
DE3100800A1 true DE3100800A1 (de) 1982-01-07

Family

ID=22353519

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813100800 Withdrawn DE3100800A1 (de) 1980-01-21 1981-01-13 Hubschrauberrotorblatt

Country Status (11)

Country Link
US (1) US4324530A (enExample)
JP (1) JPS56167599A (enExample)
AU (1) AU536734B2 (enExample)
CA (1) CA1143354A (enExample)
CH (1) CH652980A5 (enExample)
DE (1) DE3100800A1 (enExample)
ES (1) ES8203288A1 (enExample)
FR (1) FR2473983A1 (enExample)
GB (1) GB2067493B (enExample)
IL (1) IL61879A (enExample)
IT (1) IT1135095B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400806A1 (de) * 1994-01-13 1995-07-20 Bernd Stolz Propeller
DE29602559U1 (de) * 1996-02-14 1996-04-18 Kähler, Kai, 20355 Hamburg Drehflügelluftfahrzeug
CN109789924A (zh) * 2016-09-07 2019-05-21 列奥纳多股份公司 能够悬停的飞行器的旋翼及相关的控制方法

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507149A1 (fr) * 1981-06-05 1982-12-10 Onera (Off Nat Aerospatiale) Extremite de pale pour voilure tournante d'aeronef et voilure tournante pourvue de telles extremites de pale
US4722608A (en) * 1985-07-30 1988-02-02 General Signal Corp. Mixing apparatus
FR2617118B1 (fr) * 1987-06-29 1992-08-21 Aerospatiale Pale a extremite courbe pour voilure tournante d'aeronef
GB8815955D0 (en) * 1988-07-05 1988-11-16 Westland Helicopters Helicopter rotor blades
JP2525836Y2 (ja) * 1989-03-29 1997-02-12 川崎重工業株式会社 回転翼用ブレードの先端部形状
US5190441A (en) * 1990-08-13 1993-03-02 General Electric Company Noise reduction in aircraft propellers
GB9022281D0 (en) * 1990-10-13 1991-02-20 Westland Helicopters Helicopter rotor blades
GB9023141D0 (en) * 1990-10-24 1991-07-10 Westland Helicopters Helicopter rotor blades
US5137427A (en) * 1990-12-20 1992-08-11 United Technologies Corporation Quiet tail rotor
US5320494A (en) * 1992-12-22 1994-06-14 United Technologies Corporation Helicopter rotor blade having a replaceable anhedral tip
AUPN163795A0 (en) * 1995-03-10 1995-04-06 DIPNALL, David A device for extracting energy from moving water particles
GB9600123D0 (en) * 1996-01-04 1996-03-06 Westland Helicopters Aerofoil
FR2755941B1 (fr) 1996-11-19 1999-01-15 Eurocopter France Pale a extremite en fleche pour voilure tournante d'aeronef
US5885059A (en) * 1996-12-23 1999-03-23 Sikorsky Aircraft Corporation Composite tip cap assembly for a helicopter main rotor blade
JP3916723B2 (ja) * 1997-05-15 2007-05-23 富士重工業株式会社 回転翼航空機の回転翼羽根
JP3189251B2 (ja) * 1999-03-12 2001-07-16 株式会社コミュータヘリコプタ先進技術研究所 回転翼機のロータブレード
US6200096B1 (en) 1999-04-16 2001-03-13 Sikorsky Aircraft Corporation Actuation system for an active rotor control system
US6295006B1 (en) 1999-04-16 2001-09-25 Sikorsky Aircraft Corporation Flap angle measurement system for an active rotor control system
US6196796B1 (en) 1999-04-22 2001-03-06 Sikorsky Aircraft Corporation High torque actuation system for an active rotor control system
US6354536B1 (en) 2000-08-08 2002-03-12 Sikorsky Aircraft Corporation Rotor hub mounted actuator for controlling a blade on a rotorcraft
US6497385B1 (en) 2000-11-08 2002-12-24 Continuum Dynamics, Inc. Rotor blade with optimized twist distribution
KR20050088325A (ko) * 2003-01-02 2005-09-05 알로이즈 우벤 풍력 발전 플랜트를 위한 회전자 날개
DE10300284A1 (de) * 2003-01-02 2004-07-15 Aloys Wobben Rotorblatt für eine Windenergieanlage
DE20301445U1 (de) * 2003-01-30 2004-06-09 Moser, Josef Rotorblatt
DE10332875B4 (de) * 2003-07-19 2016-11-24 Windreich GmbH Rotorflügelblatt
RU2253506C1 (ru) * 2003-10-22 2005-06-10 Орловский государственный технический университет (ОрелГТУ) Пропеллерная мешалка конструкции землякова н.в. для перемешивания жидких сред
JP2005335621A (ja) * 2004-05-28 2005-12-08 Fuji Heavy Ind Ltd ヘリコプタのロータブレード
JP4740580B2 (ja) * 2004-11-30 2011-08-03 株式会社ベルシオン 横軸風車のブレード並びに横軸風車
JP5348822B2 (ja) * 2005-09-15 2013-11-20 株式会社ベルシオン 横軸プロペラ
WO2006059472A1 (ja) * 2004-11-30 2006-06-08 Global Energy Co., Ltd. プロペラ並びに横軸風車
US7513750B2 (en) * 2006-03-08 2009-04-07 Sikorsky Aircraft Corporation Rotor blade tip planform
MX2009009244A (es) 2007-03-01 2009-09-08 Delta T Corp Extension angular de plano aerodinamico para aspa de ventilador.
US7762785B2 (en) * 2007-12-10 2010-07-27 Sikorsky Aircraft Corporation Main rotor blade with integral tip section
DE102007062490B4 (de) * 2007-12-20 2011-07-28 Eurocopter Deutschland GmbH, 86609 Rotorblatt für ein Drehflügelflugzeug
US8066219B2 (en) * 2008-04-25 2011-11-29 Karem Aircraft, Inc. Anhedral tip blades for tiltrotor aircraft
US8419371B2 (en) * 2008-05-30 2013-04-16 General Electric Company Wind turbine blades with twisted and tapered tips
US8858183B2 (en) * 2010-02-26 2014-10-14 Sikorsky Aircraft Corporation Rotor blade for a rotary-wing aircraft
US20120128501A1 (en) * 2010-11-23 2012-05-24 4Front Engineered Solutions, Inc. Fan blade tips
GB2486021B (en) * 2010-12-02 2017-07-19 Agustawestland Ltd Aerofoil
JP5602060B2 (ja) * 2011-02-28 2014-10-08 三菱重工業株式会社 風車翼およびこれを備えた風力発電装置ならびに風車翼の設計方法
US8842000B2 (en) 2012-07-17 2014-09-23 4Front Engineered Solutions, Inc. Fire control systems
FR3005301B1 (fr) * 2013-05-03 2015-05-29 Eurocopter France Rotor carene d'aeronef, et giravion
EP2821634A1 (en) * 2013-07-05 2015-01-07 youWINenergy GmbH Mountable wing tip device for mounting on a rotor blade of a wind turbine arrangement
US9874214B2 (en) 2014-01-28 2018-01-23 4Front Engineered Solutions, Inc. Fan with fan blade mounting structure
US9726192B2 (en) 2015-03-31 2017-08-08 Assa Abloy Entrance Systems Ab Fan blades and associated blade tips
US10414486B2 (en) 2015-11-30 2019-09-17 General Electric Company Airfoil for a rotary machine including a propellor assembly
US10207793B2 (en) 2016-11-30 2019-02-19 Bell Helicopter Textron Inc. Rotor blade having variable twist
US10899440B2 (en) 2017-03-09 2021-01-26 Sikorsky Aircraft Corporation Rotor blade tip design for improved hover and cruise performance
US11498671B2 (en) * 2019-05-13 2022-11-15 Lockheed Martin Corporation Replacement tip section for a rotor blade and method of replacing a rotor blade tip section
CN115343003B (zh) * 2022-04-29 2025-08-29 南京航空航天大学 基于桨叶剖面测量弯矩的直升机桨叶动载荷识别方法
FR3137136B1 (fr) * 2022-06-28 2025-07-11 Sas Flexeole Pale d'éolienne ayant une forme d'extrémité optimisée
JP7793500B2 (ja) * 2022-09-30 2026-01-05 本田技研工業株式会社 ブレード及びロータ
US12448111B1 (en) * 2024-04-17 2025-10-21 Textron Innovations Inc. Method and system for inverse-tapered high-speed rotors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399731A (en) * 1967-07-18 1968-09-03 Algy F. Giles Jr. Rotor-blade
US3558081A (en) * 1969-02-20 1971-01-26 Airmarine Corp Airborne vehicles
US3721507A (en) * 1971-09-22 1973-03-20 United Aircraft Corp Blade for high speed helicopter
GB1538055A (en) * 1975-05-19 1979-01-10 Westland Aircraft Ltd Helicopter rotor blades
US4130377A (en) * 1977-07-13 1978-12-19 United Technologies Corporation Helicopter blade and rotor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400806A1 (de) * 1994-01-13 1995-07-20 Bernd Stolz Propeller
DE29602559U1 (de) * 1996-02-14 1996-04-18 Kähler, Kai, 20355 Hamburg Drehflügelluftfahrzeug
CN109789924A (zh) * 2016-09-07 2019-05-21 列奥纳多股份公司 能够悬停的飞行器的旋翼及相关的控制方法
US11618558B2 (en) 2016-09-07 2023-04-04 Leonardo S.P.A. Rotor for a hover-capable aircraft and related method of control
US11623744B2 (en) 2016-09-07 2023-04-11 Leonardo S.P.A. Rotor for a hover-capable aircraft and related method of control

Also Published As

Publication number Publication date
ES498662A0 (es) 1982-04-01
GB2067493A (en) 1981-07-30
IT1135095B (it) 1986-08-20
IT8119222A0 (it) 1981-01-21
GB2067493B (en) 1983-07-06
CH652980A5 (de) 1985-12-13
FR2473983B1 (enExample) 1984-04-20
JPS56167599A (en) 1981-12-23
IL61879A (en) 1985-07-31
AU6615381A (en) 1981-07-30
CA1143354A (en) 1983-03-22
US4324530A (en) 1982-04-13
ES8203288A1 (es) 1982-04-01
AU536734B2 (en) 1984-05-24
FR2473983A1 (fr) 1981-07-24

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee