Abstract:
A propulsion system includes at least one compressor, multiple conduits, a multiple-way valve, and at least one thrust augmentation device. A series of flaps can be retracted, tilted and operated in conjunction with the at least one thrust augmentation device. A converging channel in fluid communication with the valve is configured to allow expansion to ambient of a compressed air stream in a preferred single direction. The at least one thrust augmentation device each contains a mixing section, a throat section and a diffusor. Each said augmentation device receives compressed air from the at least one compressor via at least one of the conduits and valve and uses pressurized air as motive gas to generate thrust by fluidically entraining ambient air, mixing it with the motive gas and ejecting the motive gas at high velocities via the diffusor.
Abstract:
Cet aéronef (10) comporte : une cellule comportant un fuselage (12), une voilure (14), et un empennage (16); un groupe de propulsion principal (20), constitué d'un moteur (22) et d'une hélice (24); un dispositif de commandes de vol (30), comportant des d'actionneurs électriques (35), des surfaces mobiles (31 à34) et des capteurs (36); et un calculateur de pilotage automatique (40) adressant des consignes au groupe de propulsion principal et au dispositif de commande de vol. Cet aéronef sans équipage comporte, en outre, une paire de groupes de propulsion auxiliaires (51, 52), chaque groupe de propulsion auxiliaire comportant un moteur électrique, une hélice entrainée par le moteur électrique, et un moyen d'orientation du plan de l'hélice par rapport à la cellule, le calculateur de pilotage (40) étant programmé pour régler un angle d'orientation et une vitesse de rotation de l'hélice de chaque groupe de propulsion auxiliaire pour pallier un dysfonctionnement du dispositif de commandes de vol et/ou du groupe de propulsion principal, de manière à contrôler la trajectoire dans tous les axes, ledit aéronef sans équipage présentant ainsi une fiabilité accrue.
Abstract:
A fixed-wing aircraft (1) provided with a fuselage (3) which extends along a longitudinal axis (L), a pair of wings, a propulsion system and a vertical stabilizer (5) provided with a vertical drift (6) fixed with respect to the fuselage (3), The drift (6) has a through seat (8) which houses at least one thrust generator (12) adapted to produce in a controllable manner an air flow (F) along a transverse axis (T) from a first side of the drift (6) or from a second side of the drift opposite the first one, producing aerodynamic forces which act on the opposite faces (6a, 6b) of the drift (6) and are used for the directional control of the aircraft (1).
Abstract:
A propulsion system coupled to a vehicle. The system includes an ejector having an outlet structure out of which propulsive fluid flows at a predetermined adjustable velocity. A control surface having a leading edge is located directly downstream of the outlet structure such that propulsive fluid from the ejector flows over the control surface.
Abstract:
L'invention concerne un hélicoptère comprenant une ossature structurelle (5), au moins un rotor (10) principal de sustentation et de propulsion solidaire de ladite ossature structurelle (5) et une chaîne motrice de mise en mouvement dudit rotor (10) principal comprenant une boîte (11) de transmission de puissance et au moins un moteur (12a, 12b) principal, caractérisé en ce qu'il comprend en outre une pluralité de propulseurs (21a, 21b, 21c, 21d) d'appoint fixés à ladite ossature structurelle (5) et configurés pour pouvoir apporter un complément de sustentation de l'hélicoptère en cas de défaillance de la chaîne motrice de l'hélicoptère.
Abstract:
The invention relates to aviation equipment An object of this invention is to develop a new aerodynamic device which can extend the range of aerodynamic devices for aviation, increase the efficiency of the air flow power use, increase the efficiency of the lifting force and improve the efficiency of controlling the wing resultant forces. For this purpose, the aerodynamic device has an aerodynamic wing (2) with a blower (1) of gaseous working fluid (such as air) mounted above the wing (2), in accordance with the invention, the aerodynamic wing (2) has a specific shape it is designed in the form of a double-curved open surface made up by a system of longitudinal grooves (7,8) along the whole wing surface The wing (2) has a convergent segment (4) and a divergent segment (6); between the convergent and the divergent segments there is a smooth transitional segment (5). The wing outlines have end elements (11). In the convergent and the divergent segments of the wing lower surface which is not blown by air, there is a controlled drive system (10) for the wing surface cambering and area changing. The divergent segment tip on the wing trailing edge has a deflectable controlled element (9). The structural parts of the present invention meet special conditions.
Abstract:
The invention relates to a glazing successively comprising: a first rigid substrate (S1); a second rigid substrate (S2); a third rigid substrate (S3); at least one active system (A) including at least one layer and provided between the substrates (S1, S2); the first substrate (S1) being optionally recessed relative to the other substrates (S2, S3); at least one polymer film having a chip-retaining function in case of glazing breakage, provided between the substrate (S1) and the substrate (S2) and between the substrate (S2) and the substrate (S3).
Abstract:
La disposición sustentadora, estabilizadora y propulsora para aeronaves de despegue y aterrizaje vertical, utiliza unas alas giratorias, una turbinas o fanes sustentadores, propulsores y estabilizadores en los bordes de salida de las alas y empenajes, unas turbinas centrifugas o tangenciales aplicadas en los laterales del fuselaje, en los bordes de entrada y de salida de las alas, o unas turbinas centrifugas o tangenciales en los laterales del fuselaje e interior de las alas, las que portan el fuselaje son fijas y producen solo sustentación y las que van en las alas giran con ellas y producen sustentación durante el vuelo vertical y propulsión durante el vuelo horizontal, añade unos fanes estabilizadores horizontales en las puntas de las alas o empenaje horizontal y otros de dirección en el empaje vertical.
Abstract:
본 발명의 실시예에 따른 압축 공기로 제어되는 비행체는, 양쪽에 주익(20)을 갖는 동체(10); 상기 동체(10)의 지붕에 설치되는 제1 노즐(12); 상기 주익(20)의 상면에 설치되는 제2 노즐(22); 상기 동체(10) 또는 상기 주익(20)에 배치되고 압축 공기가 저장된 제1 탱크(31); 및 상기 압축 공기를 상기 제1 노즐(12) 또는 상기 제2 노즐(22)에 제공하도록 제어하는 메인 컨트롤 밸브(40); 를 포함한다. [대표도] 도 1
Abstract:
일 실시예에 따른 드론은, 본체, 상기 본체의 외측에 구비되고, 추력을 발생시키는 추진부, 상기 본체의 내측 또는 상기 본체의 상면 상에 배치되어 상기 본체의 요축(Yaw)에 대한 각속도를 발생시키는 제1 회전안정화부 및 상기 제1 회전안정화부의 구동을 제어하는 제어부를 포함하고, 상기 제어부는 상기 추진부에 고장이 발생한 경우 상기 제1 회전안정화부를 구동시켜 상기 본체의 자세를 안정화시킴으로써 텀블링 현상을 방지할 수 있다.