EP2310268A1 - Avion pourvu d'au moins deux systèmes de propulsion à hélice espacés dans le sens de l'envergure des ailes - Google Patents

Avion pourvu d'au moins deux systèmes de propulsion à hélice espacés dans le sens de l'envergure des ailes

Info

Publication number
EP2310268A1
EP2310268A1 EP09777158A EP09777158A EP2310268A1 EP 2310268 A1 EP2310268 A1 EP 2310268A1 EP 09777158 A EP09777158 A EP 09777158A EP 09777158 A EP09777158 A EP 09777158A EP 2310268 A1 EP2310268 A1 EP 2310268A1
Authority
EP
European Patent Office
Prior art keywords
propeller
aircraft
rotation
drives
axis
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Withdrawn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
EP09777158A
Other languages
German (de)
English (en)
Inventor
Daniel Reckzeh
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.)
Airbus Operations GmbH
Original Assignee
Airbus Operations GmbH
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 Airbus Operations GmbH filed Critical Airbus Operations GmbH
Publication of EP2310268A1 publication Critical patent/EP2310268A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/02—Aircraft characterised by the type or position of power plants
    • B64D27/10—Aircraft characterised by the type or position of power plants of gas-turbine type 
    • B64D27/12—Aircraft characterised by the type or position of power plants of gas-turbine type  within, or attached to, wings
    • 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
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/305—Blade pitch-changing mechanisms characterised by being influenced by other control systems, e.g. fuel supply
    • 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
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D31/00—Power plant control systems; Arrangement of power plant control systems in aircraft

Definitions

  • the invention relates to an aircraft, on the aerodynamic vanes of which at least two drive motors spaced apart from each other in their spanwise direction are arranged, each with a propeller rotation axis.
  • twin-engine aircraft In such aircraft having at least two spaced in their spanwise drive motors each having a propeller axis of rotation, the special design criteria for twin-engine aircraft are not considered due to the complexity of the aerodynamic effects generated by the individual engines as well as from aircraft-related aspects.
  • Transport aircraft with a total of at least two propeller drives on each wing are known from the general state of the art, in which, according to FIG. 2, the propeller drives 11, 12, 13, 14 are set up such that the propulsion of the aircraft 1 is generated whose propeller axes of rotation 11a, 12a, 13a, 14a rotate in the same direction of rotation.
  • the arrows indicate the direction of rotation of the propeller axes of rotation 11a, 12a, 13a, 14a for propulsion generation of the aircraft 1 schematically.
  • the directions of rotation of the propeller axes of rotation 11a, 12a, 13a, 14a provided for the propulsion are not aerodynamically and control-technically optimal, since the propellers generate asymmetric aerodynamic effects in these directions of rotation with respect to the longitudinal axis of the fuselage, which compensates by corresponding adjusting movements of the flaps and these adjusting movements must be applied in addition to the control movements required for the control.
  • the propeller drives are usually realized with the propulsion directions of rotation shown in Figure 2, since all drives on the wings 5a, 5b can be realized with the same components and subsystems such as the same engine, the same gear and the same propellers and thus by this Solution results in great logistical and therefore cost benefits. Because of these logistical advantages The manufacturing costs for the drives as a whole and the maintenance and spare parts inventory of components and subsystems can be reduced.
  • the determination of the directions of rotation of the propeller for a propeller-driven aircraft 1 can continue to be made according to the design for cruising, while dispense with the aforementioned logistical advantages.
  • the two directions of propeller rotation shown in FIGS. 3 and 4 are also suitable for the propulsion of the aircraft 1.
  • the symmetrical arrangement of the propeller rotation directions shown in FIG. 3 with respect to the longitudinal direction of the fuselage is provided, since this configuration is favorable in terms of aerodynamic design for cruising flight and, due to the symmetrical arrangement of the propeller rotation directions, also favorable in terms of control engineering because the flap movements no additional compensatory movements must be performed to compensate for asymmetrically occurring aerodynamic effects.
  • the arrangement of the propeller directions of rotation according to FIG. 4 can also be considered.
  • the commonality of the construction of the four propeller drives is also not given.
  • the aerodynamic design with regard to the cruise is less favorable than the arrangement according to FIG. 3, however, this arrangement results in more favorable slow flight characteristics for the aircraft 1 than in the arrangement according to FIG Arrangement of the propeller rotation directions because of the symmetrical arrangement of the propeller rotation directions control technology advantageous.
  • a further advantage of the arrangement of the propeller rotation directions according to the figure 4 over the arrangement of Figure 3 is that the noise input into the hull interior is low, since with an upward movement of the propeller end parts of the propellers of the inside, ie lying next to the fuselage propeller Actuators 12, 13 in the area between these propeller drives 12, 13 and the fuselage 3 less vortex depart from the propeller than if the arrangement of the propeller rotational directions, as shown for example in Figure 2, such that the propeller end pieces of the internal propeller drives 12, 13 in the area between them and the hull to be moved down.
  • These advantages may, in particular cases, be weighted such that the configuration of FIG. 4 is preferred over the other configurations that provide a commonality of the drives.
  • the object of the invention is to find alternative aircraft configurations, whereby an optimal overall aircraft can be realized.
  • the aircraft provided according to the invention has at least two spaced apart spanwise propeller drives on both wings, each with a propeller axis of rotation, wherein the control device is designed such that it actuates the propeller drives for propulsion generation such that the outer portion of a Propeller mounted on the respective propeller axis of rotation is moved on the side facing the fuselage from top to bottom.
  • each wing of the aircraft can be provided in particular such that on each wing of the first, closer to the fuselage propeller drive in the range of 15-40% and the outer propeller drive is located in the range of between 40 and 80% with the span direction defined from the fuselage and the outer wingtip located at the location defined by 100% of the span.
  • each propeller drive has a single propeller circuit on one and the same propeller rotation axis. According to a further embodiment it can be provided that at least 30% of the wing span are covered by the propeller circuits.
  • the wings of the aircraft form a sweep angle between +10 degrees and +40 degrees.
  • the aircraft may be designed so that the propeller circuits at the point where they come closest to the wing leading edge, a local distance of at least 5% of the local, i. at this point occurring chord depth to the wing leading edge.
  • the aircraft may be configured such that the distance or offset of the propeller axis of rotation at the propeller hub or the offset of the propeller axis of rotation at the point where they intersect the plane defined by the propeller circles to the airfoil leading edge in the vertical plane of the aircraft is up or down at most 30% of the propeller diameter.
  • FIG. 1 which shows schematically an aircraft with the configuration of the propeller rotation directions according to the invention
  • FIG. 2 schematically shows an aircraft with a configuration of the propeller rotation directions known from the general state of the art
  • FIG. 3 which schematically shows an aircraft with a known from the general state of the art configuration of the propeller rotation directions
  • FIG 4 which schematically shows an aircraft with another possible configuration of the propeller rotation directions.
  • the respective intended direction of rotation of the propeller is represented by arrows.
  • the figures are components or parts of the aircraft shown have the same or similar function with the same reference numerals.
  • FIG. 1 shows an aircraft 1 with a fuselage 3 and two aerodynamic vanes 5a, 5b, on each of which at least two spaced spanwise propeller drives 11, 12, 13, 14, each with a propeller axis of rotation 11a, 12a, 13a, 14a are arranged. On the axes of rotation 11a, 12a, 13a, 14a, a non-illustrated propeller is mounted in each case.
  • the propeller drives 11, 12, 13, 14 are controlled by a control device for driving the propeller drive motors.
  • the control device and the propeller drives 11, 12, 13, 14 are designed such that in an operating mode of the control device for generating propulsion, the propeller drive motors are actuated such that the outer portion of a respective propeller mounted on the respective propeller rotation axis is moved on the fuselage side from top to bottom ( Figure 1).
  • the mode of operation of the propulsion control device is the mode in which the aircraft is driven in the air.
  • an aircraft 1 with a fuselage 3 and two aerodynamic vanes is provided, on each of which at least two propeller drives 11, 12, 13, 14 spaced apart in the spanwise direction are arranged, each with a propeller rotation axis 11a, 12a, 13a, 14a wherein the aircraft 1 comprises a control device for controlling the propeller drives 11, 12, 13, 14.
  • the propeller drives 11, 12, 13, 14 are actuated such that the outer portion of a propeller mounted on the respective propeller rotation axis moves from top to bottom on the side facing the fuselage 3 becomes.
  • This can be in particular a fixed-wing aircraft.
  • the aircraft according to the invention can be designed as a high-decker.
  • the control device and the propeller drives 11, 12, 13, 14 are arranged such that each propeller rotation axis 11a, 12a, 13a, 14a can be moved in addition in a rotational direction, in which on the respective propeller rotation axis 11a, 12a, 13a, 14a mounted propeller on the fuselage 3 side facing is moved from bottom to top.
  • control device and the propeller drives 11, 12, 13, 14 are set up in such a way that two propeller drives 11, 12, respectively symmetrical to each other with respect to the longitudinal axis of the fuselage. 13, 14 can be moved in a direction of rotation in which a respective propeller mounted on the respective propeller rotation axis on the fuselage 3 side facing is moved from bottom to top, while other propeller drives 11, 12, 13, 14 so operated be that the outer portion of a respective propeller on the respective rotational axis mounted propeller is moved on the fuselage 3 side facing from top to bottom.
  • the arrangement of the propeller rotation directions according to the figure 1 is unfavorable in terms of cruise configuration of the aircraft 1, since this configuration generates a greater flow resistance, due to a superposition of the trailing currents of the propeller of the internal propeller drives 12, 13 and the wing 5a, 5b results. Furthermore, the propeller drives 11, 12, 13, 14 in an arrangement of the propeller rotation directions according to the figure 1 and no Gayun Ches- advantages. Also, this configuration of propeller rotational directions is unfavorable with respect to the noise input to the aircraft fuselage, whereafter a configuration of the propeller rotational directions according to FIG. 2 or 4 would be advantageous.
  • the configuration of the propeller rotation directions according to the figure 1 is achieved contrary to expectations that a separation of the flow at the wing in the wake of the propeller of the internal propeller drive 12, 13 due to interference between this propeller and the wing only at larger angles of attack as at the configuration of the propeller directions of rotation according to the figure 3.
  • a larger maximum lift for the aircraft 1 can be achieved.
  • the configuration of the propeller rotation directions according to FIG. 1 is provided that with this configuration for the aircraft 1, a simpler high-lift system and also a smaller wing 5a, 5b can be provided to fulfill a corresponding power spectrum.
  • the wings can be realized with the associated high-lift system at a lower cost.
  • the wing can be realized with the associated high-lift system with less weight, so that the aircraft 1 can also be realized cheaper in terms of its performance.
  • the solution according to the invention is aerodynamically particularly advantageous in cruise flight as well as in take-off and landing, ie also in slow motion, compared with those of the prior art the technology known solutions.
  • the configuration of the propeller rotation directions according to FIG. 1 can be provided according to the invention for high-wing aircraft as well as for medium or low-wing aircraft and, in particular, for transport aircraft.
  • the propeller thrusters are realized with a single propeller circle on the propeller axis of rotation 11a, 12a, 13a, 14a, i. there is no multiple arrangement of propeller circuits on one of the propeller rotation axis 11a, 12a, 13a, 14a one behind the other ("contra-rotating props").
  • the wing 5a, 5b may basically have a sweep angle in the range of -40 ° to + 40 °.
  • the configuration according to the invention of the propeller rotation directions according to FIG. 1 is particularly advantageous with a blade angle of the blade between +10 degrees and +40 degrees.
  • the aircraft's cruise range can lie in a higher airspeed range.
  • This sweep angle range is inventively provided in particular with a single propeller circuit or single or multiple propeller on one and the same propeller rotation axis 11a, 12a, 13a, 14a.
  • sweep angle is based on conventional definitions and may, in particular, be the angle, seen in plan view, between the leading edge of the vanes 5a, 5b relative to the intended flow or the transverse axis of the aircraft 1.
  • the effect according to the invention already occurs when, in the front view, at least 30% of the wing span is swept by the propeller jets or if at least 30% of the wing span is covered by the propeller circles.
  • the configuration according to the invention can be carried out particularly favorably. This overlap of the wing can advantageously be provided to 70% of the span and in particular cases beyond.
  • the propeller circuits are arranged according to the invention in front of the wing 5a, 5b.
  • the propeller drives 11, 12, 13, 14 are designed in an embodiment according to the invention such that the propeller circles at the point where they come closest to the wing leading edge, a local distance of at least 5% of the blade depth occurring at this point Wing leading edge have. This local distance can amount to a maximum of 70% of the local wing depth at the wing leading edge occurring at this point.
  • the propeller axes of rotation 11a, 12a, 13a, 14a may be above or below the wing.
  • the distance or offset of the propeller axis of rotation at the propeller hub or the offset of the propeller axis of rotation at the point where they intersect the plane defined by the propeller circles to the airfoil leading edge seen in the vertical plane of the aircraft up or down maximum 30% of the propeller diameter.
  • the distance between the propeller tips of the propeller circuits of the engines to each other is at least 5% of the wing span. This prevents the edge vortices, which depart from propellers, from producing disturbing interferences.
  • the distance of the propeller tips of the inner engine to the hull exterior is at least 10% and a maximum of 80% of the propeller diameter.
  • the aircraft according to the invention in the mentioned embodiments preferably operates with cruise velocities in the subsonic range above 0.6 Mach and up to a maximum of 0.85 Mach.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Toys (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un avion (1) présentant un fuselage (3) et deux ailes aérodynamiques sur chacune desquelles sont disposés au moins deux systèmes de propulsion à hélice (11, 12, 13, 14) qui sont espacés dans le sens de l'envergure des ailes et qui présentent chacun un axe de rotation d'hélice (11a, 12a, 13a, 14a), cet avion (1) comprenant un dispositif de commande pour commander les systèmes de propulsion à hélice (11, 12, 13, 14). Dans un mode de fonctionnement du dispositif de commande pour générer une propulsion, les systèmes de propulsion à hélice (11, 12, 13, 14) sont actionnés de sorte que la section extérieure d'une hélice montée sur l'axe de rotation d'hélice correspondant soit déplacée de haut en bas sur le côté faisant face au fuselage (3).
EP09777158A 2008-07-11 2009-07-13 Avion pourvu d'au moins deux systèmes de propulsion à hélice espacés dans le sens de l'envergure des ailes Withdrawn EP2310268A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8002608P 2008-07-11 2008-07-11
DE102008032789A DE102008032789A1 (de) 2008-07-11 2008-07-11 Flugzeug mit zumindest zwei in Spannweitenrichtung der Flügel voneinander beabstandeten Antriebsmotoren
PCT/EP2009/005083 WO2010003698A1 (fr) 2008-07-11 2009-07-13 Avion pourvu d'au moins deux systèmes de propulsion à hélice espacés dans le sens de l'envergure des ailes

Publications (1)

Publication Number Publication Date
EP2310268A1 true EP2310268A1 (fr) 2011-04-20

Family

ID=41412797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09777158A Withdrawn EP2310268A1 (fr) 2008-07-11 2009-07-13 Avion pourvu d'au moins deux systèmes de propulsion à hélice espacés dans le sens de l'envergure des ailes

Country Status (9)

Country Link
US (1) US20110186679A1 (fr)
EP (1) EP2310268A1 (fr)
JP (1) JP2011527253A (fr)
CN (1) CN102089209A (fr)
BR (1) BRPI0915902A2 (fr)
CA (1) CA2730460A1 (fr)
DE (1) DE102008032789A1 (fr)
RU (1) RU2011104794A (fr)
WO (1) WO2010003698A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105059542B (zh) * 2015-08-10 2017-09-19 成都纵横自动化技术有限公司 一种垂直起降的固定翼长航时飞行器
CN105857579A (zh) * 2016-05-12 2016-08-17 中国航空工业集团公司西安飞机设计研究所 一种螺旋桨飞机
US11130568B2 (en) * 2018-11-08 2021-09-28 Textron Innovations Inc. Autonomous thrust vectoring ring wing pod
JP1658121S (fr) 2019-03-11 2020-04-20
JP7385254B2 (ja) * 2019-10-04 2023-11-22 国立研究開発法人宇宙航空研究開発機構 電動化航空機及びその姿勢制御方法
CN112572785A (zh) * 2020-12-09 2021-03-30 中国空气动力研究与发展中心 一种高效前缘分布式螺旋桨飞行器动力布局

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB425870A (en) * 1933-08-11 1935-03-22 Luca Bongiovanni Device for reversing the propeller of aircraft
FR796031A (fr) * 1934-10-09 1936-03-27 Perfectionnement à la disposition des hélices dans les aéroplanes multimoteurs
US2178725A (en) * 1938-10-03 1939-11-07 Lawrence Frank Airplane propulsion
US2699304A (en) * 1950-12-26 1955-01-11 Gen Motors Corp Control for a plurality of variable pitch counterrotating propellers
US3096043A (en) * 1960-05-10 1963-07-02 Aviation Louis Breguet Sa Aerodynes having a slipstream-assisted wing system
US3141633A (en) * 1962-11-05 1964-07-21 North American Aviation Inc Tilt-wing aircraft
GB2264907A (en) * 1992-02-10 1993-09-15 Peter Antony Hulmes Multi-engined aircraft.
US5645250A (en) * 1993-08-26 1997-07-08 Gevers; David E. Multi-purpose aircraft
US5374010A (en) * 1993-09-23 1994-12-20 E.G.R. Company Deflected slipstream vertical lift airplane structure
FR2793470B3 (fr) * 1999-05-12 2001-07-13 Gerard Esnault Bimoteur tractif a helices supraconvergentes rapprochees
US6513752B2 (en) * 2000-05-22 2003-02-04 Cartercopters, L.L.C. Hovering gyro aircraft
US6659394B1 (en) * 2000-05-31 2003-12-09 The United States Of America As Represented By The Secretary Of The Air Force Compound tilting wing for high lift stability and control of aircraft
FR2871137B1 (fr) * 2004-06-03 2006-09-08 Airbus France Sas Systeme de propulsion pour avion comportant quatre moteurs a helice propulsive

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010003698A1 *

Also Published As

Publication number Publication date
JP2011527253A (ja) 2011-10-27
CA2730460A1 (fr) 2010-01-14
WO2010003698A1 (fr) 2010-01-14
RU2011104794A (ru) 2012-08-20
US20110186679A1 (en) 2011-08-04
BRPI0915902A2 (pt) 2017-05-30
DE102008032789A1 (de) 2010-01-14
CN102089209A (zh) 2011-06-08

Similar Documents

Publication Publication Date Title
EP2064116B1 (fr) Corps aérodynamique et aile portante présentant un corps aérodynamique d'influence de post-turbulences
EP2439138B1 (fr) Aéronef à géométrie variable
EP2274200B1 (fr) Cinématique de volet d'atterrissage à entraînement par pignon
DE3219159C2 (fr)
EP2293978B1 (fr) Dispositif pour créer des tourbillons aérodynamiques, et volet de réglage et aile comprenant un dispositif pour créer des tourbillons aérodynamiques
DE69432523T2 (de) Ultraschall flügel mit laminarströmung
DE102012100102B4 (de) Hubschrauberkonfiguration
DE60208898T2 (de) Flugzeuganordnung mit verbesserter aerodynamik
EP0553490A1 (fr) Appareil volant
EP3715249B1 (fr) Dispositif d'entrainement pour un aéronef
EP2310268A1 (fr) Avion pourvu d'au moins deux systèmes de propulsion à hélice espacés dans le sens de l'envergure des ailes
EP2391536A2 (fr) Groupe de propulsion, en particulier moteur à rotor ouvert contrarotatif (cror) pour aéronef
WO2019034765A1 (fr) Aéronef à décollage vertical
EP2473404A2 (fr) Élément aérodynamique, clapet de réglage, aile principale ou aileron d'un aéronef, ainsi qu'élément de structure muni d'un tel élément aérodynamique
WO2014108125A1 (fr) Aéronef à rendement élevé et à faible bruit
DE29916203U1 (de) Senkrechtstart- und landefähiges Fluggerät
DE102021124376A1 (de) Flugzeug zum vertikalen starten und landen sowie flügelvorrichtung
EP1714869B1 (fr) Surface de sustentation avec comportement de séparation amélioré sous angle d'incidence fortement variable
DE102010047643A1 (de) Vorrichtung und ein Verfahren zum Erhöhen des aerodynamischen Auftriebs an einem Flugzeug
EP2536626A1 (fr) Système de surfaces aérodynamiques auxiliaires pour un aéronef
EP2223853A1 (fr) Surface à écoulement dynamique dotée d'une turbine entraînée par un écoulement induit à l'aide de la surface d'écoulement
DE202016000269U1 (de) Tragflügel mit integrierten Triebwerksgondeln
DE102011117542A1 (de) Propeller zum Antrieb eines Luftfahreuges
DE112020007562T5 (de) Flügelkonsole eines vertikal startenden und landenden Flugzeugs sowie Flugzeug mit einem solchen Flügel
DE102013104695A1 (de) Aerodynamischer Profilkörper

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110127

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20120808

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20130219