UNMANNED AIRCRAFT HAVING REDUCED ACOUSTIC SIGNATURES

    公开(公告)号:WO2021030888A1

    公开(公告)日:2021-02-25

    申请号:PCT/BR2020/050304

    申请日:2020-08-06

    Applicant: EMBRAER S.A.

    Abstract: Unmanned aircraft have aligned forward and aft propulsion systems possessing different performance and/or noise characteristics. According to some embodiments, unmanned aircraft have a forward engine and a forward tractor propeller and an aft engine and an aft pusher propeller. Selected ones of forward and aft propulsion systems will thus be provided to have greater and lesser operational flight performance characteristics and greater and lesser noise signature characteristics, respectively, as compared to the other. For example, the forward propulsion system may be provided with the greater operational flight performance and/or noise signature characteristics as compared to the aft propulsion system, while conversely the aft propulsion system may be provided with a lesser flight performance and/or noise signature characteristics as compared to the forward propulsion system.

    一种供电方法及设备
    3.
    发明申请

    公开(公告)号:WO2020034148A1

    公开(公告)日:2020-02-20

    申请号:PCT/CN2018/100829

    申请日:2018-08-16

    Inventor: 王童 林涛

    Abstract: 一种供电方法及设备,该供电方法应用于主机设备(100),该主机设备包括供电电路,供电电路包括第一供电电路(130)和第二供电电路(140),当检测到主机设备(100)用于通过连接器(110)与外部设备(200)相连接时,确定外部设备能够支持的最高电压值;根据最高电压值从供电电路中选择第一供电电路或者第二供电电路用于为外部设备供电;第一供电电路的供电电压值大于第二供电电路的供电电压值。可见,本方案能够对各种功率需求的外部设备供电,并能保证供电的安全性。以及一种无人机和一种计算机可读存储介质。

    TURBOMACHINE AÉRONAUTIQUE À HÉLICE NON CARÉNÉE MUNIE DE PALES AYANT UN ÉLÉMENT RAPPORTE EN MATÉRIAU COMPOSITE COLLE SUR LEUR BORD D'ATTAQUE
    4.
    发明申请
    TURBOMACHINE AÉRONAUTIQUE À HÉLICE NON CARÉNÉE MUNIE DE PALES AYANT UN ÉLÉMENT RAPPORTE EN MATÉRIAU COMPOSITE COLLE SUR LEUR BORD D'ATTAQUE 审中-公开
    涡轮螺桨飞机非涵道与叶素EQUIPPED报告]复合水泥自己的优势

    公开(公告)号:WO2017162964A1

    公开(公告)日:2017-09-28

    申请号:PCT/FR2017/050624

    申请日:2017-03-17

    Abstract: L'invention concerne une turbomachine aéronautique comprenant au moins une hélice rotative non carénée munie d'une pluralité de paies (6), chaque pale (6) comprenant : un corps de paie (8) en matériau composite ayant un renfort fibreux densifié par une matrice, te renfort fibreux du corps de pale (8) présentent un tissage tridimensionnel, ledit corps s'étendant entre un bord d'attaque (12) et un bord de fuite (14),- et un élément rapporté (16) de protection du bord d'attaque (12) en matériau composite ayant un renfort fibreux densifié par une matrice, ledit élément rapporté (16) étant collé sur le bord d'attaque (12) du corps de pale (8), ledit élément rapporte (16) étant formé à partir d'une préforme fibreuse sèche moulée par Injection d'une résine de densification, et un film de poiyuréthane (20) de protection contre l'érosion recouvrant le corps de pale (8) et l'élément rapporté (16). L'invention concerne aussi un procédé de fabrication associé.

    Abstract translation: 本发明涉及一种航空涡轮机,其包括至少一个设有多个至少一个转子单元的非旋转式旋转式发动机。 (6),每个刀片(6)包括:具有致密纤维增强件的复合材料的支承体(8) 由矩阵,叶片体的纤维增强你(8)PRé感觉到三维编织,所述物体S'E的前缘(12)和后缘(14),趋向之间 - 和去 该报告被报道 (16),用于保护具有致密化纤维增强材料的复合材料的前缘(12); 通过矩阵表示所述报告 (16)粘在一起 在叶片体(8)的前缘(12)上形成所述轴承(16); À 从通过注入致密化树脂模制而成的模制纤维预制件和防止覆盖所述刀身(8)的侵蚀的蚀刻保护膜(20)。 )和相关报告 (16)。 本发明还涉及一种方法 相关制造业。

    PULSED LOCOMOTOR
    5.
    发明申请
    PULSED LOCOMOTOR 审中-公开
    脉冲位置传感器

    公开(公告)号:WO2015196276A1

    公开(公告)日:2015-12-30

    申请号:PCT/CA2015/050015

    申请日:2015-01-12

    Abstract: A Pulsed Locomotor (120), for propelling media, fluids and crafts, in fluids and on land, comprising a blade (124) securely connected to a drive shaft (122). Upon reciprocation, the ambient medium is forced towards the trailing edge of the blade (124) thereby causing a reactive locomotion of the apparatus, substantially along the plane of the blade. Apparatus is secured to motor M by fastening through aperture (130). The apparatus can be operated directly by motor M, and indirectly by the reaction momentum imparted to a supporting platform P. Thrust is directed by steering handle (128) about a bearing (126), rotatably coupling to platform P and base C. Lubricant L is supplied to outlets (134) via conduit (136) and inlet (132), to coat the apparatus with a lubricant cavity, for drag reduction. The blade (124) planes along a figure 8 reciprocation path s1e1s2e2s1. Crafts are embodied.

    Abstract translation: 一种用于在流体和陆地上推进介质,流体和工艺的脉冲机车(120),包括牢固地连接到驱动轴(122)的叶片(124)。 在往复运动时,环境介质被迫朝向叶片(124)的后缘,从而基本上沿叶片的平面引起装置的反应性运动。 装置通过紧固通孔(130)固定到马达M上。 该装置可以由电动机M直接操作,并且间接地通过施加到支撑平台P的反作用力。推力由转向手柄(128)围绕轴承(126)引导,可旋转地联接到平台P和基座C.润滑剂L 经由导管(136)和入口(132)供应到出口(134),以用润滑剂腔涂覆该装置,用于减阻。 刀片(124)沿着图8往复运动路径s1e1s2e2s1平面。 工艺是体现的。

    OSCILLATING PROPULSOR
    6.
    发明申请
    OSCILLATING PROPULSOR 审中-公开
    振荡推测器

    公开(公告)号:WO2015003261A1

    公开(公告)日:2015-01-15

    申请号:PCT/CA2014/050605

    申请日:2014-06-25

    Abstract: A curved body (830), for propelling fluids, crafts and harvesting fluid power, comprises a convex outer leading surface securely connected to a concave inner trailing surface to define an open vessel. Upon oscillation, ambient fluids are accelerated and ejected from the vessel to propel the vessel and the ambient fluids in opposite directions. Apparatus is secured to a motive power source directly or via actuating member (832), by fastening through aperture (834). The oscillating propulsor can be operated directly by a reciprocating motive power source, and indirectly by the reaction momentum imparted to a supporting base. Thrust may be vectored by rotation of the curved body (830) about the supporting base. Drag reduction using fluid dynamic shapes, intake openings, a fore fin (844), an aft fin (846), and a lubricant cavity, are embodied. Enhanced propulsion using multistage oscillating propulsors is embodied.

    Abstract translation: 用于推进流体,工艺和收获液体动力的弯曲体(830)包括牢固地连接到凹形内部后表面以限定开放容器的凸形外部前导表面。 在振荡时,环境流体被加速并从容器喷出以推动容器和环境流体相反的方向。 装置通过紧固通孔(834)直接地或通过致动构件(832)固定到动力源。 振荡推进器可以通过往复运动动力源直接操作,并且间接地通过赋予支撑基座的反作用动力来操作。 推力可以通过弯曲体(830)围绕支撑底座的旋转来支撑。 实现了使用流体动态形状,进气口,前翅(844),后翅(846)和润滑剂腔的减阻。 实现了使用多级摆动推进器的增强型推进器。

    VARIABALE STIFFNESS LIQUID INERTIA VIBRATION ELIMINATOR
    7.
    发明申请
    VARIABALE STIFFNESS LIQUID INERTIA VIBRATION ELIMINATOR 审中-公开
    VARIABALE柔性液体动力学振动消除器

    公开(公告)号:WO2011103078A1

    公开(公告)日:2011-08-25

    申请号:PCT/US2011/024858

    申请日:2011-02-15

    Abstract: A variable stiffness liquid inertia vibration isolation device includes a liquid inertia vibration elimination isolator and a variable stiffness spring operably associated with the liquid inertia vibration elimination isolator for varying the stiffness of the liquid inertia vibration isolator. The variable stiffness spring may include an elastomeric pad exhibiting a first stiffness along a first axis and a second stiffness, significantly greater than the first stiffness, along a second axis that is perpendicular to the first axis.

    Abstract translation: 可变刚度液体惯性隔振装置包括液体惯性消振隔离器和可变刚度弹簧,可变刚度弹簧与液体惯性消除隔振器可操作地相关联,用于改变液体惯性隔振器的刚度。 可变刚度弹簧可以包括沿着垂直于第一轴线的第二轴线呈现沿着第一轴线的第一刚度和显着大于第一刚度的第二刚度的弹性体垫片。

    HOVER DELIVERY OF CABIN PAYLOAD IN TILT-ROTOR AND TILT-WING AIRCRAFT
    8.
    发明申请
    HOVER DELIVERY OF CABIN PAYLOAD IN TILT-ROTOR AND TILT-WING AIRCRAFT 审中-公开
    HOVER在倾斜旋翼和倾斜翼飞机中提供舱内有效载荷

    公开(公告)号:WO2010059303A1

    公开(公告)日:2010-05-27

    申请号:PCT/US2009060127

    申请日:2009-10-09

    Applicant: KAREM ABE

    Inventor: KAREM ABE

    CPC classification number: B64D1/08 B64C29/0033 B64D1/10

    Abstract: A payload or cargo is delivered from a cargo hold of an aircraft during flight, by orienting the fuselage into a nose-up and tail-down position of at least 30 degrees off horizontal, and lowering the cargo from a cargo hold in the fuselage by means of one or more lines. Preferred vertical takeoff and landing (VTOL) aircraft include tilt-rotor or tilt-wing aircraft, and especially preferred aircraft are capable of generating control moments with their rotors to assist in orientating the fuselage of the aircraft into a nose-up and tail-down position.

    Abstract translation: 有效载荷或货物在飞行期间通过将飞机的货舱定向成与机身中的货舱相距至少30度的机头和尾部位置,并通过机身上的货舱降低货物 一条或多条线的手段。 优选的垂直起飞和降落(VTOL)飞机包括倾斜转子或倾斜翼飞机,并且特别优选的飞机能够利用它们的转子产生控制时刻,以协助将飞机的机身定向成俯仰和尾翼 位置。

    ICING PROTECTION FOR AIRCRAFT AIR INLET SCOOPS
    9.
    发明申请
    ICING PROTECTION FOR AIRCRAFT AIR INLET SCOOPS 审中-公开
    飞机空气入口喷射器的保护

    公开(公告)号:WO2009097668A2

    公开(公告)日:2009-08-13

    申请号:PCT/BR2008/000381

    申请日:2008-12-05

    CPC classification number: B64D15/04 B64D33/10 B64D2033/0233 B64D2033/0286

    Abstract: Aircraft air scoop icing protection systems and methods include an air duct having air inlet and outlet openings and a fairing which covers the air duct and defines an interior fairing space in which at least a forward portion of the air duct is positioned. The fairing has a forward end which surrounds the air inlet of the air duct. At least one tube is provided having an inlet end in communication with a heated air chamber associated with an airframe structure of the aircraft, and an outlet end in communication with the interior fairing space. Heated air in the heated chamber is directed through the tube to the interior fairing space so as to provide icing protection to the air duct. The air scoop icing protection systems may advantageously be employed so as to provide icing protection to air scoops associated with an aircraft engine nacelle using the residual heat from the nacelle's inlet lip primary bleed air system.

    Abstract translation: 飞机空气铲结冰保护系统和方法包括具有空气入口和出口开口的空气管道和覆盖空气管道的整流罩,并限定内部整流空间,其中至少空气管道的前部位于该内部整流空间中。 整流罩具有围绕空气管道进气口的前端。 提供至少一个管,其具有与与飞行器的机体结构相关联的加热空气室连通的入口端和与内部整流罩空间连通的出口端。 加热室中的加热空气通过管引导到内部整流罩空间,以便为空气管道提供结冰保护。 可以有利地使用空气铲结冰保护系统,以便使用来自机舱的入口唇口初级排气系统的剩余热量来提供与飞行器发动机机舱相关联的空气铲斗的结冰保护。

    NON-PLANAR ADAPTIVE WING SOLAR AIRCRAFT
    10.
    发明申请
    NON-PLANAR ADAPTIVE WING SOLAR AIRCRAFT 审中-公开
    非平面自适应太阳能飞机

    公开(公告)号:WO2009036465A1

    公开(公告)日:2009-03-19

    申请号:PCT/US2008/076462

    申请日:2008-09-15

    Inventor: PARKS, Robert

    CPC classification number: B64C3/16 B64D27/24 Y02T50/12 Y02T50/44 Y02T50/62

    Abstract: A system and method for assembling and operating a solar powered aircraft, composed of one or more modular constituent wing panels. Each wing panel includes at least one hinge interface that is configured to rotationally interface with a complementary hinge interface on another wing panel. When a first and second wing panel are coupled together via the rotational interface, they can rotate with respect to each other within a predetermined angular range. The aircraft further comprises a control system that is configured to acquire aircraft operating information and atmospheric information and use the same alter the angle between the wing panels, even if there are multiple wing panels. One or more of the wing panels can include photovoltaic cells and/or solar thermal cells to convert sol radiation energy or solar heat energy into electricity, that can be used to power electric motors.

    Abstract translation: 一种用于组装和操作太阳能飞行器的系统和方法,由一个或多个模块化组件翼板组成。 每个翼板包括至少一个铰链接口,其被配置为与另一翼板上的互补铰链接口旋转地接合。 当第一和第二翼板通过旋转接口联接在一起时,它们可以在预定角度范围内相对于彼此旋转。 飞机还包括控制系统,其被配置为获取飞行器操作信息和大气信息,并且使用该控制系统改变翼板之间的角度,即使存在多个翼板。 一个或多个翼板可以包括光电池和/或太阳能热电池,以将溶胶辐射能量或太阳能热能转换成电能,其可用于为电动机提供动力。

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