BR0317808A - Palheta de rotor de propulsão com fenda de borda principal - Google Patents

Palheta de rotor de propulsão com fenda de borda principal

Info

Publication number
BR0317808A
BR0317808A BR0317808-0A BR0317808A BR0317808A BR 0317808 A BR0317808 A BR 0317808A BR 0317808 A BR0317808 A BR 0317808A BR 0317808 A BR0317808 A BR 0317808A
Authority
BR
Brazil
Prior art keywords
vane
rotor
propeller
slot
edge
Prior art date
Application number
BR0317808-0A
Other languages
English (en)
Inventor
Daniel B Robertson
Duddley E Smith
Charles L Hollimon
Jimmy C Narramore
Robert B Mullins
Original Assignee
Bell Helicopter Textron 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 Bell Helicopter Textron Inc filed Critical Bell Helicopter Textron Inc
Publication of BR0317808A publication Critical patent/BR0317808A/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
    • 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
    • B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
    • B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
    • B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
    • B64C29/0033—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being tiltable relative to the fuselage

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Tires In General (AREA)

Abstract

"PALHETA DE ROTOR DE PROPULSãO COM FENDA DE BORDA PRINCIPAL". Uma palheta de rotor de propulsão (27a, 27b, 127a, 127b) tendo uma fenda de borda principal de extensão fixa (215) localizada em pelo menos a porção de bordo do rotor de propulsão é revelada. A fenda (215) é formada por uma palheta (217), seletivamente formada disposta em uma área recessada seletivamente moldada (219) localizada na borda principal (202) da porção principal da palheta de rotor de propulsão. A fenda (215) é seletivamente moldada de modo que uma porção do fluxo de ar sobre a superfície de plano aerodinâmico inferior da palheta de rotor de propulsão é desviada entre a porção principal da palheta de rotor de propulsão e a palheta (217), e sai na superfície de plano aerodinâmico superior da palheta de rotor de propulsão. A presente invenção pode ser usada em ambas aeronave de rotor de inclinação tipo militar (11), e aeronave de rotor de inclinação tipo civil (111), com somente pequenas variações para acomodar as formas diferentes das palhetas de rotor de propulsão.
BR0317808-0A 2003-01-23 2003-01-23 Palheta de rotor de propulsão com fenda de borda principal BR0317808A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/002049 WO2004067380A1 (en) 2003-01-23 2003-01-23 Proprotor blade with leading edge slot

Publications (1)

Publication Number Publication Date
BR0317808A true BR0317808A (pt) 2005-11-29

Family

ID=32823163

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0317808-0A BR0317808A (pt) 2003-01-23 2003-01-23 Palheta de rotor de propulsão com fenda de borda principal

Country Status (8)

Country Link
US (1) US7594625B2 (pt)
EP (1) EP1585665B1 (pt)
CN (1) CN100372735C (pt)
AU (1) AU2003210634A1 (pt)
BR (1) BR0317808A (pt)
CA (1) CA2505007C (pt)
DE (2) DE03815629T1 (pt)
WO (1) WO2004067380A1 (pt)

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PL2123556T3 (pl) * 2008-05-22 2011-04-29 Agusta Spa Łopatka śmigła ogonowego śmigłowca
PL2123557T3 (pl) * 2008-05-22 2011-10-31 Agustawestland Spa Łopatka wirnika ogonowego równoważącego moment obrotowy śmigłowca
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ES2330500B1 (es) * 2008-05-30 2010-09-13 GAMESA INNOVATION & TECHNOLOGY, S.L. UNIPERSONAL Pala de aerogenerador con elementos hipersustentadores.
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PT2626298E (pt) * 2012-02-09 2014-09-22 Agustawestland Spa Lâmina de rotor aeronáutico e método de fabrico relativo
US9446843B2 (en) * 2012-03-27 2016-09-20 The Boeing Company Enhanced performance rotorcraft rotor blade
US9211950B2 (en) * 2012-05-04 2015-12-15 Sikorsky Aircraft Corporation Multi-element rotor blade
RU2013128924A (ru) * 2013-06-25 2014-12-27 Геворг Сережаевич Нороян Ветряная турбина для электромобиля
CN103708029A (zh) * 2014-01-06 2014-04-09 姚昊 轻型飞行器
CN103754363B (zh) * 2014-02-11 2015-10-14 谷梦若 旋翼翼梢不变距且增升的直升机旋翼系统
US20150316025A1 (en) * 2014-05-01 2015-11-05 Siemens Energy, Inc. Aerodynamic device for a rotor blade of a wind turbine
FR3031082B1 (fr) * 2014-12-30 2017-02-10 Airbus Operations Sas Ensemble de jonction raccordant un carenage ventral d'aeronef au fuselage pourvu d'un raidisseur en position particuliere
US20160244147A1 (en) 2015-02-20 2016-08-25 Northrop Grumman Systems Corporation Quiet slat propeller
US9981736B2 (en) 2016-05-16 2018-05-29 Bell Helicopter Textron Inc. Folding proprotor blade assembly having integral tang assembly
US10239604B2 (en) 2016-05-21 2019-03-26 Bell Helicopter Textron Inc. Structurally biased proprotor blade assembly
US10377480B2 (en) 2016-08-10 2019-08-13 Bell Helicopter Textron Inc. Apparatus and method for directing thrust from tilting cross-flow fan wings on an aircraft
US10479495B2 (en) 2016-08-10 2019-11-19 Bell Helicopter Textron Inc. Aircraft tail with cross-flow fan systems
US10279900B2 (en) 2016-08-10 2019-05-07 Bell Helicopter Textron Inc. Rotorcraft variable thrust cross-flow fan systems
US10421541B2 (en) 2016-08-10 2019-09-24 Bell Helicopter Textron Inc. Aircraft with tilting cross-flow fan wings
US10106253B2 (en) 2016-08-31 2018-10-23 Bell Helicopter Textron Inc. Tilting ducted fan aircraft generating a pitch control moment
US10293931B2 (en) 2016-08-31 2019-05-21 Bell Helicopter Textron Inc. Aircraft generating a triaxial dynamic thrust matrix
US10207793B2 (en) * 2016-11-30 2019-02-19 Bell Helicopter Textron Inc. Rotor blade having variable twist
US10618632B2 (en) * 2017-02-13 2020-04-14 Bell Helicopter Textron Inc. Foldable rotor blade assembly
US10384776B2 (en) 2017-02-22 2019-08-20 Bell Helicopter Textron Inc. Tiltrotor aircraft having vertical lift and hover augmentation
CN106986005B (zh) * 2017-03-29 2024-02-13 北京华信智航科技有限公司 一种油动倾转旋翼飞机的倾转结构
US10604234B2 (en) * 2017-06-17 2020-03-31 Bell Helicopter Textron Inc. Method and apparatus to improve lift to drag ratio of a rotor blade
CN109071005A (zh) 2017-07-28 2018-12-21 深圳市大疆创新科技有限公司 螺旋桨、动力组件及飞行器
US10814967B2 (en) 2017-08-28 2020-10-27 Textron Innovations Inc. Cargo transportation system having perimeter propulsion
US10836481B2 (en) * 2017-11-09 2020-11-17 Bell Helicopter Textron Inc. Biplane tiltrotor aircraft
USD891351S1 (en) 2017-12-15 2020-07-28 Bell Helicopter Textron Inc. Rotor blade
EP3674211B1 (en) * 2018-12-28 2021-02-17 LEONARDO S.p.A. Convertiplane and related control method
CN109747818B (zh) * 2018-12-30 2021-09-03 南京航空航天大学 基于桨尖质量射流的直升机旋翼气动干扰控制方法
MX2019003715A (es) * 2019-03-29 2020-09-30 Rosado Rodrigo Gallardo Ala rotativa de autorotacion inducida.
CN110789709B (zh) * 2019-10-12 2022-10-11 哈尔滨飞机工业集团有限责任公司 一种具有前缘缝翼的复合材料水平尾翼
CN110683033B (zh) * 2019-10-31 2023-03-21 哈尔滨工程大学 一种可调距式旋翼

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Also Published As

Publication number Publication date
EP1585665B1 (en) 2008-05-28
DE60321390D1 (de) 2008-07-10
CA2505007A1 (en) 2004-08-12
US7594625B2 (en) 2009-09-29
US20060239824A1 (en) 2006-10-26
CN100372735C (zh) 2008-03-05
WO2004067380A1 (en) 2004-08-12
DE03815629T1 (de) 2006-04-13
AU2003210634A1 (en) 2004-08-23
CA2505007C (en) 2010-05-11
EP1585665A1 (en) 2005-10-19
EP1585665A4 (en) 2007-09-12
CN1714022A (zh) 2005-12-28

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements