CN1062224C - 带导管式旋翼和整流定子及叶片的相位调制的反力矩装置 - Google Patents
带导管式旋翼和整流定子及叶片的相位调制的反力矩装置 Download PDFInfo
- Publication number
- CN1062224C CN1062224C CN95105361A CN95105361A CN1062224C CN 1062224 C CN1062224 C CN 1062224C CN 95105361 A CN95105361 A CN 95105361A CN 95105361 A CN95105361 A CN 95105361A CN 1062224 C CN1062224 C CN 1062224C
- Authority
- CN
- China
- Prior art keywords
- rotor
- blade
- conduit
- counter torque
- angle
- 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 - Lifetime
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
- B64C2027/8254—Shrouded tail rotors, e.g. "Fenestron" fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
b | 6 | 8 | 9 | 10 | 12 |
Δθmin | 14.34° | 10.75° | 9.55° | 8.60° | 7.17° |
n | 1 | 2 | 3 | 4 |
θn | 55° | 92° | 128° | 180° |
n | 5 | 6 | 7 | 8 |
θn | 235° | 272° | 308° | 360° |
n | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
θn | 56° | 93° | 131° | 180° | 236° | 273° | 311° | 360° |
n | 1 | 2 | 3 | 4 | 5 |
θn | 44.9° | 77.5° | 102.5° | 135.1° | 180° |
n | 6 | 7 | 8 | 9 | 10 |
θn | 224.9° | 257.5° | 282.5° | 315.1° | 360° |
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9405478 | 1994-05-04 | ||
FR9405478A FR2719550B1 (fr) | 1994-05-04 | 1994-05-04 | Dispositif anti-couple à rotor et stator redresseur carénés, et modulation de phase des pales du rotor, pour hélicoptère. |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1126157A CN1126157A (zh) | 1996-07-10 |
CN1062224C true CN1062224C (zh) | 2001-02-21 |
Family
ID=9462871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN95105361A Expired - Lifetime CN1062224C (zh) | 1994-05-04 | 1995-05-03 | 带导管式旋翼和整流定子及叶片的相位调制的反力矩装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5588618A (zh) |
EP (1) | EP0680872B1 (zh) |
JP (1) | JP3043593B2 (zh) |
CN (1) | CN1062224C (zh) |
DE (1) | DE69501975T2 (zh) |
FR (1) | FR2719550B1 (zh) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3051357B2 (ja) * | 1997-03-26 | 2000-06-12 | 株式会社コミュータヘリコプタ先進技術研究所 | 主ロータトルク補正装置 |
US7234914B2 (en) * | 2002-11-12 | 2007-06-26 | Continum Dynamics, Inc. | Apparatus and method for enhancing lift produced by an airfoil |
US20040187475A1 (en) * | 2002-11-12 | 2004-09-30 | Usab William J. | Apparatus and method for reducing radiated sound produced by a rotating impeller |
DE602005017793D1 (de) * | 2004-07-16 | 2009-12-31 | Bell Helicopter Textron Inc | Gegendrehmomentvorrichtung für hubschrauber |
US7607607B2 (en) * | 2005-05-26 | 2009-10-27 | Sikorsky Aircraft Corporation | De-rotation system suitable for use with a shaft fairing system |
US7621480B2 (en) * | 2005-05-26 | 2009-11-24 | Sikorsky Aircraft Corporation | De-rotation system for a counter-rotating, coaxial rotor hub shaft fairing |
US7229251B2 (en) * | 2005-05-31 | 2007-06-12 | Sikorsky Aircraft Corporation | Rotor hub fairing system for a counter-rotating, coaxial rotor system |
US20070022196A1 (en) * | 2005-06-29 | 2007-01-25 | Subodh Agrawal | Single token multifactor authentication system and method |
FR2923456B1 (fr) | 2007-11-08 | 2009-12-18 | Eurocopter France | Aeronef muni d'un rotor carene silencieux |
EP2227641B1 (en) * | 2007-12-03 | 2016-07-20 | Sikorsky Aircraft Corporation | Magnetic de-rotation system for a shaft fairing system |
US8534596B2 (en) * | 2008-01-02 | 2013-09-17 | Sikorsky Aircraft Corporation | Planetary de-rotation system for a shaft fairing system |
FR2926786B1 (fr) | 2008-01-30 | 2010-02-19 | Eurocopter France | Procede d'optimisation d'un rotor anti-couple carene a gene acoustique minimale pour un giravion, notamment un helicoptere, et rotor anti-couple carene ainsi obtenu |
DE102008058029B3 (de) * | 2008-11-18 | 2010-01-07 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Hubschrauber |
US9046108B2 (en) | 2009-09-02 | 2015-06-02 | Apple Inc. | Centrifugal blower with asymmetric blade spacing |
US8398380B2 (en) * | 2009-09-02 | 2013-03-19 | Apple Inc. | Centrifugal blower with non-uniform blade spacing |
US9046109B2 (en) | 2009-09-02 | 2015-06-02 | Apple Inc. | Centrifugal blower with asymmetric blade spacing |
US9039393B2 (en) | 2009-09-02 | 2015-05-26 | Apple Inc. | Centrifugal blower with asymmetric blade spacing |
FR2968272B1 (fr) * | 2010-12-06 | 2013-07-12 | Eurocopter France | Element de structure ameliore d'un giravion pour diminuer la trainee aerodynamique. |
TWM462303U (zh) * | 2012-08-29 | 2013-09-21 | Apple Inc | 具非對稱葉片間隔之離心鼓風機 |
TWM460172U (zh) * | 2012-08-29 | 2013-08-21 | Apple Inc | 具有非對稱葉片間隔之離心式鼓風機 |
EP2706009B1 (en) | 2012-09-07 | 2016-04-27 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | An empennage of a helicopter |
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 |
CN103438024A (zh) * | 2013-07-03 | 2013-12-11 | 浙江理工大学 | 一种叶片非均匀分布的小型轴流风扇 |
EP2883791B1 (en) | 2013-12-10 | 2016-04-06 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Helicopter with a Tail shroud |
EP2913271A1 (en) | 2014-02-28 | 2015-09-02 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Rotorcraft with at least one main rotor and at least one counter-torque rotor |
EP2913270B1 (en) | 2014-02-28 | 2016-02-24 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Rotorcraft with at least one main rotor and at least one counter-torque rotor |
EP2913269B1 (en) | 2014-02-28 | 2019-01-16 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Rotorcraft with at least one main rotor and at least one counter-torque rotor |
EP3031720B1 (en) * | 2014-12-09 | 2019-07-24 | Sikorsky Aircraft Corporation | Guide vanes for a pusher propeller for rotary wing aircraft |
US9944388B2 (en) * | 2015-08-27 | 2018-04-17 | Sikorsky Aircraft Corporation | Rotorcraft state control |
US10377479B2 (en) | 2016-06-03 | 2019-08-13 | Bell Helicopter Textron Inc. | Variable directional thrust for helicopter tail anti-torque system |
US10526085B2 (en) | 2016-06-03 | 2020-01-07 | Bell Textron Inc. | Electric distributed propulsion anti-torque redundant power and control system |
US10703471B2 (en) | 2016-06-03 | 2020-07-07 | Bell Helicopter Textron Inc. | Anti-torque control using matrix of fixed blade pitch motor modules |
WO2018002818A1 (en) * | 2016-06-27 | 2018-01-04 | University Of Pretoria | A method and system for monitoring rotor blades of a turbomachine using blade tip timing (btt) |
US10648486B2 (en) | 2017-05-08 | 2020-05-12 | Microsoft Technology Licensing, Llc | Fan with impeller based on an audio spread-spectrum |
DE202017104316U1 (de) * | 2017-07-19 | 2018-10-24 | SBM Development GmbH | Heckrotoranordnung |
CN108045571A (zh) * | 2017-12-01 | 2018-05-18 | 中国直升机设计研究所 | 一种涵道垂尾 |
US10889366B2 (en) * | 2018-09-21 | 2021-01-12 | Textron Innovations Inc. | Ducted thrusters |
US11772785B2 (en) * | 2020-12-01 | 2023-10-03 | Textron Innovations Inc. | Tail rotor configurations for rotorcraft yaw control systems |
US11827344B2 (en) * | 2020-12-09 | 2023-11-28 | Textron Innovations Inc. | Low noise ducted fan |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5131604A (en) * | 1991-04-11 | 1992-07-21 | United Technologies Corporation | Helicopter antitorque device |
EP0562527A1 (en) * | 1992-03-24 | 1993-09-29 | Kawasaki Jukogyo Kabushiki Kaisha | Tail rotor for rotor craft |
EP1017543A1 (en) * | 1998-07-20 | 2000-07-12 | Snap-On Tools Company | Ratchet head electronic torque wrench |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2962260A (en) * | 1954-12-13 | 1960-11-29 | United Aircraft Corp | Sweep back in blading |
CH399643A (it) * | 1962-03-09 | 1965-09-30 | A De Jong N V | Ventilateur axial |
US3270953A (en) * | 1963-05-21 | 1966-09-06 | Jerie Jan | Axial flow compressor, blower or ventilator with reduced noise production |
US3285502A (en) * | 1965-01-25 | 1966-11-15 | Brookside Corp | Balanced fan construction |
US3346174A (en) * | 1966-07-05 | 1967-10-10 | Trane Co | Compact axial flow fan |
FR1531536A (fr) * | 1967-05-22 | 1968-07-05 | Sud Aviation | Hélice ou rotor à pas variable |
FR1593008A (zh) * | 1968-07-11 | 1970-05-25 | ||
US3883268A (en) * | 1971-11-01 | 1975-05-13 | Gen Electric | Blunted leading edge fan blade for noise reduction |
US3747343A (en) * | 1972-02-10 | 1973-07-24 | United Aircraft Corp | Low noise prop-fan |
JPS5524399Y2 (zh) * | 1974-09-10 | 1980-06-11 | ||
SU726358A1 (ru) * | 1978-06-29 | 1980-04-05 | Институт Горной Механики И Технической Кибернетики Им. М.М.Федорова | Направл ющий аппарат осевой турбомашины |
FR2534222A1 (fr) * | 1982-10-06 | 1984-04-13 | Aerospatiale | Agencement de rotor de queue a poussee accrue pour aeronef a voilure tournante et dispositif pour accroitre la poussee d'un tel agencement |
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 |
FR2600036B1 (fr) * | 1986-06-16 | 1988-09-16 | Aerospatiale | Dispositif directionnel et stabilisateur a rotor anti-couple carene et incline et a empennage en " v " dissymetrique, et helicoptere equipe d'un tel dispositif. |
DE3736141A1 (de) * | 1987-10-26 | 1989-05-11 | Deutsche Forsch Luft Raumfahrt | Flugzeugpropeller |
US5169286A (en) * | 1989-03-09 | 1992-12-08 | Yutaka Yamada | Variable capacity centrifugal water pump with movable pressure chamber formed by impeller |
-
1994
- 1994-05-04 FR FR9405478A patent/FR2719550B1/fr not_active Expired - Lifetime
- 1994-08-30 US US08/298,080 patent/US5588618A/en not_active Expired - Lifetime
-
1995
- 1995-04-27 JP JP7104302A patent/JP3043593B2/ja not_active Expired - Fee Related
- 1995-05-02 DE DE69501975T patent/DE69501975T2/de not_active Expired - Lifetime
- 1995-05-02 EP EP95400997A patent/EP0680872B1/fr not_active Expired - Lifetime
- 1995-05-03 CN CN95105361A patent/CN1062224C/zh not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5131604A (en) * | 1991-04-11 | 1992-07-21 | United Technologies Corporation | Helicopter antitorque device |
EP0562527A1 (en) * | 1992-03-24 | 1993-09-29 | Kawasaki Jukogyo Kabushiki Kaisha | Tail rotor for rotor craft |
EP1017543A1 (en) * | 1998-07-20 | 2000-07-12 | Snap-On Tools Company | Ratchet head electronic torque wrench |
Also Published As
Publication number | Publication date |
---|---|
DE69501975T2 (de) | 1998-11-19 |
FR2719550B1 (fr) | 1996-07-26 |
DE69501975D1 (de) | 1998-05-14 |
JP3043593B2 (ja) | 2000-05-22 |
CN1126157A (zh) | 1996-07-10 |
FR2719550A1 (fr) | 1995-11-10 |
EP0680872B1 (fr) | 1998-04-08 |
JPH08133191A (ja) | 1996-05-28 |
US5588618A (en) | 1996-12-31 |
EP0680872A1 (fr) | 1995-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: ULOCOPT S.A. Free format text: FORMER OWNER: EUROCOPTER FRANCE S.A. Effective date: 20150407 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee |
Owner name: AIRBUS HELICOPTER Free format text: FORMER NAME: ULOCOPT S.A. |
|
CP01 | Change in the name or title of a patent holder |
Address after: France, Anna Patentee after: Kong Kezhishengji Address before: France, Anna Patentee before: EUROCOPTER |
|
TR01 | Transfer of patent right |
Effective date of registration: 20150407 Address after: France, Anna Patentee after: EUROCOPTER Address before: France Marseille Patentee before: Eurocopter France |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20150503 Granted publication date: 20010221 |