DE3261125D1 - Tip for a rotor craft blade - Google Patents

Tip for a rotor craft blade

Info

Publication number
DE3261125D1
DE3261125D1 DE8282400927T DE3261125T DE3261125D1 DE 3261125 D1 DE3261125 D1 DE 3261125D1 DE 8282400927 T DE8282400927 T DE 8282400927T DE 3261125 T DE3261125 T DE 3261125T DE 3261125 D1 DE3261125 D1 DE 3261125D1
Authority
DE
Germany
Prior art keywords
tip
rotor craft
craft blade
blade
rotor
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.)
Expired
Application number
DE8282400927T
Other languages
English (en)
Inventor
Jean-Jaques Philippe
Robert Marius Claude Lyothier
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Airbus Group SAS
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
Airbus Group SAS
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=9259263&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3261125(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Office National dEtudes et de Recherches Aerospatiales ONERA, Airbus Group SAS filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Application granted granted Critical
Publication of DE3261125D1 publication Critical patent/DE3261125D1/de
Expired 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)
  • Wind Motors (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
DE8282400927T 1981-06-05 1982-05-19 Tip for a rotor craft blade Expired DE3261125D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8111232A FR2507149A1 (fr) 1981-06-05 1981-06-05 Extremite de pale pour voilure tournante d'aeronef et voilure tournante pourvue de telles extremites de pale

Publications (1)

Publication Number Publication Date
DE3261125D1 true DE3261125D1 (en) 1984-12-06

Family

ID=9259263

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282400927T Expired DE3261125D1 (en) 1981-06-05 1982-05-19 Tip for a rotor craft blade

Country Status (7)

Country Link
US (1) US4451206A (de)
EP (1) EP0067097B1 (de)
JP (1) JPS57209499A (de)
BR (1) BR8203434A (de)
DE (1) DE3261125D1 (de)
FR (1) FR2507149A1 (de)
IN (1) IN156598B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5161953A (en) * 1991-01-28 1992-11-10 Burtis Wilson A Aircraft propeller and blade element
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
CA2291275C (en) * 1997-06-13 2007-11-06 The Boeing Company Blunt-leading-edge raked wingtips
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
FR2793766B1 (fr) * 1999-05-21 2001-07-13 Eurocopter France Pale pour voilure tournante d'aeronef
US6301868B1 (en) 1999-08-26 2001-10-16 James D. Siplinger Vortex reducing mower blade
US6497385B1 (en) 2000-11-08 2002-12-24 Continuum Dynamics, Inc. Rotor blade with optimized twist distribution
US7344360B2 (en) 2004-09-29 2008-03-18 General Electric Company Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same
US7513750B2 (en) * 2006-03-08 2009-04-07 Sikorsky Aircraft Corporation Rotor blade tip planform
ATE490914T1 (de) * 2008-05-22 2010-12-15 Agusta Spa Drehmomentausgleichs-heckrotorblatt für hubschrauber
US7854595B2 (en) * 2008-07-30 2010-12-21 General Electric Company Wind turbine blade tip shapes
AT507091B1 (de) * 2008-09-22 2010-02-15 Walter Enthammer Strömungsmaschine
US10899440B2 (en) 2017-03-09 2021-01-26 Sikorsky Aircraft Corporation Rotor blade tip design for improved hover and cruise performance
RU2734154C1 (ru) * 2019-12-24 2020-10-13 Общество с ограниченной ответственностью "ОКБ АВИАРЕШЕНИЯ" (ООО "ОКБ АВИАРЕШЕНИЯ") Лопасть винта летательного аппарата вертолетного типа (варианты)

Family Cites Families (11)

* 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
US3467197A (en) * 1968-05-07 1969-09-16 Bell Aerospace Corp Rotor blade
US3721507A (en) * 1971-09-22 1973-03-20 United Aircraft Corp Blade for high speed helicopter
CA1016524A (en) * 1974-01-03 1977-08-30 Textron Inc. Helicopter rotor blade
GB1538055A (en) * 1975-05-19 1979-01-10 Westland Aircraft Ltd Helicopter rotor blades
US3999888A (en) * 1975-06-25 1976-12-28 United Technologies Corporation Composite tip weight attachment
US4130377A (en) * 1977-07-13 1978-12-19 United Technologies Corporation Helicopter blade and rotor
US4142837A (en) * 1977-11-11 1979-03-06 United Technologies Corporation Helicopter blade
US4248572A (en) * 1978-12-11 1981-02-03 United Technologies Corporation Helicopter blade
US4334828A (en) * 1980-01-21 1982-06-15 United Technologies Corporation Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency
US4324530A (en) * 1980-01-21 1982-04-13 United Technologies Corp. Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency

Also Published As

Publication number Publication date
EP0067097B1 (de) 1984-10-31
FR2507149B1 (de) 1983-10-21
FR2507149A1 (fr) 1982-12-10
BR8203434A (pt) 1983-06-07
EP0067097A1 (de) 1982-12-15
US4451206A (en) 1984-05-29
JPS57209499A (en) 1982-12-22
IN156598B (de) 1985-09-14
JPH0366198B2 (de) 1991-10-16

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee