BR8900623A - Secao para pa de helice reforcada - Google Patents

Secao para pa de helice reforcada

Info

Publication number
BR8900623A
BR8900623A BR898900623A BR8900623A BR8900623A BR 8900623 A BR8900623 A BR 8900623A BR 898900623 A BR898900623 A BR 898900623A BR 8900623 A BR8900623 A BR 8900623A BR 8900623 A BR8900623 A BR 8900623A
Authority
BR
Brazil
Prior art keywords
helice
reinforced
section
reinforced helice
Prior art date
Application number
BR898900623A
Other languages
English (en)
Inventor
Anne-Marie Rodde
Joel Reneaux
Jean-Jacques Thibert
Alain Eric Vuillet
Original Assignee
Onera (Off Nat Aerospatiale)
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 Onera (Off Nat Aerospatiale) filed Critical Onera (Off Nat Aerospatiale)
Publication of BR8900623A publication Critical patent/BR8900623A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/18—Aerodynamic features
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/02—Formulas of curves

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Special Spraying Apparatus (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Lubricants (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Electrophotography Configuration And Component (AREA)
BR898900623A 1988-02-05 1989-02-03 Secao para pa de helice reforcada BR8900623A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8801381A FR2626841B1 (fr) 1988-02-05 1988-02-05 Profils pour pale d'helice aerienne carenee

Publications (1)

Publication Number Publication Date
BR8900623A true BR8900623A (pt) 1989-10-10

Family

ID=9362996

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898900623A BR8900623A (pt) 1988-02-05 1989-02-03 Secao para pa de helice reforcada

Country Status (10)

Country Link
US (1) US4911612A (pt)
EP (1) EP0327435B1 (pt)
JP (1) JP2523851B2 (pt)
CN (1) CN1010933B (pt)
AU (1) AU608942B2 (pt)
BR (1) BR8900623A (pt)
CA (1) CA1321382C (pt)
DE (1) DE68900143D1 (pt)
FR (1) FR2626841B1 (pt)
IN (1) IN171009B (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197854A (en) * 1991-09-05 1993-03-30 Industrial Design Laboratories, Inc. Axial flow fan
US5791878A (en) * 1997-03-10 1998-08-11 United Technologies Corporation Airfoiled blade for cargo transport aircraft
FR2765187B1 (fr) * 1997-06-25 1999-08-27 Onera (Off Nat Aerospatiale) Profil de pale pour voilure tournante d'aeronef et pale pour voilure tournante presentant un tel profil
US6565334B1 (en) 1998-07-20 2003-05-20 Phillip James Bradbury Axial flow fan having counter-rotating dual impeller blade arrangement
US6129528A (en) * 1998-07-20 2000-10-10 Nmb Usa Inc. Axial flow fan having a compact circuit board and impeller blade arrangement
US6856941B2 (en) 1998-07-20 2005-02-15 Minebea Co., Ltd. Impeller blade for axial flow fan having counter-rotating impellers
CA2361801A1 (en) * 1999-02-08 2000-08-10 Midwest Research Institute Cooling-tower fan airfoils
US6899524B1 (en) * 1999-02-08 2005-05-31 Midwest Research Institute Cooling-tower fan airfoils
CN100406347C (zh) * 2006-01-23 2008-07-30 李如忠 船用节能螺旋桨
ITMI20060340A1 (it) * 2006-02-27 2007-08-28 Nuovo Pignone Spa Pala di un rotore di un secondo stadio di un compressore
JP2009008014A (ja) * 2007-06-28 2009-01-15 Mitsubishi Electric Corp 軸流ファン
JP5067104B2 (ja) * 2007-10-03 2012-11-07 トヨタ自動車株式会社 車両下部構造
CN101988522B (zh) * 2010-12-01 2012-08-29 鑫贺精密电子(东莞)有限公司 散热风扇
JP6030853B2 (ja) * 2011-06-29 2016-11-24 三菱日立パワーシステムズ株式会社 タービン動翼及び軸流タービン
CN103818545B (zh) * 2012-11-16 2016-04-20 哈尔滨飞机工业集团有限责任公司 一种高升阻比的亚音速翼型
EP2799334B1 (en) 2013-04-29 2016-09-07 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Blade rotary assembly with aerodynamic outer toroid spoiler for a shrouded propulsion rotary assembly
CN103482054B (zh) * 2013-08-14 2015-07-01 西北工业大学 一种匹配全翼太阳能无人机的低雷诺数翼型
US10414482B2 (en) * 2014-08-21 2019-09-17 Juan Gerardo Narvaez Tijerina Airfoils for stunt flights
CN105564632A (zh) * 2014-10-11 2016-05-11 中国航空工业集团公司西安飞机设计研究所 一种高升力自然层流翼型
EP3112258B1 (en) * 2015-07-03 2017-09-13 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Airfoils for rotor blades of rotary wing aircrafts
GB201702822D0 (en) * 2017-02-22 2017-04-05 Rolls Royce Plc A propulsor
US10358926B2 (en) * 2017-08-11 2019-07-23 General Electric Company Low-noise airfoil for an open rotor
FR3075757B1 (fr) 2017-12-22 2019-11-15 Airbus Helicopters Enveloppes aerodynamiques epaisses pour cols de pales et carenages de manchons de pales d'un rotor d'un aeronef
FR3077802B1 (fr) 2018-02-15 2020-09-11 Airbus Helicopters Methode de determination d'un cercle initial de bord d'attaque des profils aerodynamiques d'une pale et d'amelioration de la pale afin d'augmenter son incidence negative de decrochage
FR3077803B1 (fr) 2018-02-15 2020-07-31 Airbus Helicopters Methode d'amelioration d'une pale afin d'augmenter son incidence negative de decrochage
CN208947584U (zh) * 2018-07-06 2019-06-07 深圳市道通智能航空技术有限公司 螺旋桨、动力组件及无人机
FR3110893B1 (fr) 2020-05-29 2022-07-01 Airbus Helicopters Méthode de construction d’une pale de rotor destinée à un giravion, pales et giravion
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
FR3115012B1 (fr) 2020-10-13 2022-08-26 Airbus Helicopters Méthode d’amélioration du comportement aérodynamique de pales d’un giravion en vol stationnaire par un déplacement du bord d’attaque des profils aérodynamiques de ces pales

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2712717A1 (de) * 1977-03-23 1978-09-28 Ver Flugtechnische Werke Ueberkritisches tragfluegelprofil
FR2427249A1 (fr) * 1978-05-29 1979-12-28 Aerospatiale Profil de voilure pour aeronef
JPS6021518Y2 (ja) * 1980-03-07 1985-06-26 アイシン精機株式会社 内燃機関の冷却装置用フアン
GB2072600B (en) * 1980-03-13 1983-11-09 Secr Defence Supercritical aerofoil section
US4519746A (en) * 1981-07-24 1985-05-28 United Technologies Corporation Airfoil blade
FR2542695B1 (fr) * 1983-03-18 1985-07-26 Aerospatiale Helice multipale a pas variable a pale s en materiaux composites demontables individuellement, procede de fabrication de telles pales et pales ainsi realisees
FR2590229B1 (fr) * 1985-11-19 1988-01-29 Onera (Off Nat Aerospatiale) Perfectionnements apportes aux helices aeriennes en ce qui concerne le profil de leurs pales
US4834617A (en) * 1987-09-03 1989-05-30 United Technologies Corporation Airfoiled blade

Also Published As

Publication number Publication date
US4911612A (en) 1990-03-27
EP0327435B1 (fr) 1991-07-17
FR2626841A1 (fr) 1989-08-11
FR2626841B1 (fr) 1995-07-28
JP2523851B2 (ja) 1996-08-14
IN171009B (pt) 1992-06-27
CN1036537A (zh) 1989-10-25
DE68900143D1 (de) 1991-08-22
JPH01240400A (ja) 1989-09-25
AU2885189A (en) 1989-08-10
CN1010933B (zh) 1990-12-26
EP0327435A1 (fr) 1989-08-09
AU608942B2 (en) 1991-04-18
CA1321382C (fr) 1993-08-17

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Legal Events

Date Code Title Description
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 03/02/2004