Abstract:
UAV configurations and battery augmentation for UAV internal combustion engines, and associated systems and methods are disclosed. A representative configuration includes a fuselage, first and second wings coupled to and pivotable relative to the fuselage, and a plurality of lift rotors carried by the fuselage. A representative battery augmentation arrangement includes a DC-powered motor, an electronic speed controller, and a genset subsystem coupled to the electronic speed controller. The genset subsystem can include a battery set, an alternator, and a motor-gen controller having a phase control circuit configurable to rectify multiphase AC output from the alternator to produce rectified DC feed to the DC-powered motor. The motor-gen controller is configurable to draw DC power from the battery set to produce the rectified DC feed.
Abstract:
Vertical Take Off and Landing Unmanned Aerial Vehicle (VTOL UAV) with Twin Yaw Control System (TYCS). TYCS consists of auxiliary rotors (6) which are connected to the main rotor head frame. They acquire rotational forces from a gearbox (3) and control the movement of VTOL UAV to left- and right-directions as well as produce an anti-torque to counter the torque induced from the rotation of the main rotor (5) around the main rotor head (4) at certain rotational velocity until sufficient lift is created in vertical direction to lift VTOL UAV up and down in the air vertically. Apart from this, TYCS also helps balance the torque around the vertical axis created by the rotation of the main rotor (5). This results in the upright alignment of VTOL UAV parallel to the vertical axis at all times and therefore there is no need for a trim from external pilot or automatic flight control system while flying.
Abstract:
Die Erfindung betrifft ein Hybridflugzeug (F). Hierbei wird für eine Energieerzeugungseinheit (14), die eine Verbrennungskraftmaschine (34) und einen mit dieser über eine Welle gekoppelten elektrischen Generator (30) umfasst, eine geeignete Position für einen Einbau ins Flugzeug ermittelt. Für eine Schuberzeugungseinheit (12), die einen Elektromotor (24) und einen mit diesem über eine Welle (22) gekoppelten Propeller (20) umfasst, wird unabhängig von der Position der Energieerzeugungseinheit (14) ebenfalls eine Position ermittelt. Die Schuberzeugungseinheit (12) und die Energieerzeugungseinheit (14) werden dann beim Herstellen des Flugzeugs (F) an der jeweils für sie ermittelten Position angeordnet. Der Generator (30) wird anschließend mit dem Elektromotor (24) mittels einer elektrischen Übertragungseinrichtung (16) gekoppelt.
Abstract:
An air cooling system for an unmanned aerial vehicle including a propeller (14) driven by an engine (12) has at least one cooling air duct (22) to direct cooling air to cool a vehicle component e.g. a cylinder head. The duct has at least one air inlet and at least one air outlet. Operation of the propeller causes a pressure differential between the air outlet (24,124) and the air inlet (23,123) which draws air through said cooling air duct (22). A cowling (16) can cover at least part of the engine, and can form a plenum and have the supply of cooling air through a front face aperture (164) or side walls (17) of the engine cowl (16).
Abstract:
El dispositivo comprende al menos una cámara (3) inflable y plegable, al menos un patín (4) de amerizaje, acoplado a la aeronave (3) por medio de la cámara (3), y al menos una toma (6) de aire conectada a la cámara. La toma (6) permite la entrada de aire incidente en la cámara (3) para inflar y desplegar la cámara (3) extendiendo el patín (4) desde una posición de patín retraído hasta una posición de patín extendido.
Abstract:
Provided are alternative hybrid transmission systems for aeronautical, marine, and/or two wheeled land vehicles, as well as propulsion systems and vehicles comprising such transmission systems, to improve various propulsion systems using a combination of at least two power sources with the option for simultaneous or alternating power input from two or more power sources, while providing desired characteristics or components. Such characteristics or components can include, but are not limited to: power, torque, acceleration, cruising speed or power, fuel efficiency, battery charging, endurance, power sizing, weight, capacity, efficiency, speed, mechanically and/or electrically added system requirements, design, fuel selection, functional design, structural design, lift to drag ratio, weight, and/or other desired characteristic or component.
Abstract:
An aerial vehicle is described which comprises: a first compartment for holding a lighter than air gas; a second compartment for holding atmospheric air and having an inlet and an outlet; a solar panel for converting sunlight into electricity; a compressor for pumping atmospheric air through the inlet into the second compartment; control means for controlling the pitch and yaw of the vehicle; and a controller for controlling the buoyancy of the vehicle via the compressor and the outlet such that the vehicle is either lighter than the surrounding air and rising or heavier than the surrounding air and falling, and for controlling the control means such that the rising and falling motion includes a horizontal component. In another embodiment the solar panel is replaced by an engine and a fuel tank for storing fuel for the engine is also provided. The aerial vehicle can remain airborne for extended periods by using buoyancy propulsion. In the embodiments including a solar panel, a system including a light transmission station may be provided to supply energy to the solar panel from the light transmission station rather than relying on the incident sunlight alone. A method of flight using buoyancy propulsion is also described.
Abstract:
Methods and apparatuses provide surveillance of a convoy (12). At least one unmanned aerial vehicle (UAV) (10) obtains images around the convoy's position to provide information about potential hostile activity while th UAV follows a generally curvilinear path around the convoy as instructed by one of the convoy vehicles. Path planner algorithm software is executed by the controlling convoy vehicle in which position and velocity information regarding the unmanned aerial vehicle and the convoy are processed to determine values of control variables. The determined values are sent to the unmanned aerial vehicle over a wireless communications channel. The path of the surveillance vehicle may be changed in order to provide evasive measures to avoid an attack on the surveillance vehicle by an adversary.
Abstract:
An unmanned aerial vehicle (UAV) having a design for optimum stowability and low cost. The UAV having a collapsible wing section which can be easily removed from the fuselage, allowing for quick assembly and disassembly and ease of portability. The unmanned aerial vehicle includes a primary wing assembly, a fuselage, a means for propelling the unmanned aerial vehicle , and means for remotely controlling the unmanned aerial vehicle. The primary wing assembly includes a wing having a center spar and two outwardly diverging side spars. The wing also has a pliable flexible material supported by the center spar and the at least two outwardly diverging side spars. The pylon is connected to the wing and supports the wing. The fuselage is connected to the pylon such that the pylon extends away from the fuselage and spaces the wing a distance from the fuselage. The fuselage includes a tail having a rudder located along a trailing edge and elevators located along the trailing edge.