摘要:
An unmanned aerial system (UAS) may comprise an unmanned aerial vehicle (UAV), a portable power source, and a tether connecting a UAV to a portable power source. The tether may transmit power from the portable power source to the UAV. The UAS may be controlled by a remote control, which may command the UAV to surveil a location and transmit images back to the controller. The UAV may further include one or more components attached to the UAV, such as a camera, surveillance equipment, a Taser®, a LED strobe light, laser, or a claw. A remote control may control the flight of the UAV as well as the functionality of the one or more components. The UAS may be configured to, for example, surveil a location, intercept an intruder, inspect a building, and/or perform crowd control.
摘要:
L'invention vise une récupération optimisée d'énergie d'un aéronef, en altitude mais également au sol, à l'aide d'une même architecture. A cette fin, l'invention prévoit de récupérer l'énergie thermique à l'échappement. Une architecture de récupération d'énergie comporte un groupe auxiliaire de puissance APU (20) équipé d'une tuyère d'échappement (14) et d'un générateur de gaz (2a) équipé d'un arbre (21) de transmission de puissance à un compresseur de charge (22). Ce compresseur fournit, via une veine d'alimentation(C1), de l'air comprimé au système de conditionnement d'air ECS (30) de la cabine passagers(40). De plus, un turbocompresseur de récupération (10) est accouplé directement, ou via une boite de transmission, à l'arbre (21) du groupe APU (20). Ce turbocompresseur (10) comporte une turbine de récupération (11) alimentée par une branche aval (C3b) d'un conduit (C3) monté sur un échangeur thermique (1) équipant la tuyère (14). Ce conduit (C3) présente une branche amont (C3a) couplée à des canaux (41, 42) reliant les sorties d'air de la cabine (40) et du compresseur (12). Un deuxième échangeur (2) peut être monté entre la veine d'alimentation(C1) et le canal de sortie cabine (41).
摘要:
Disclosed are methods, systems and apparatuses for harvesting vibrational energy from vehicles, as well as methods for locating vibrational energy on a vehicle. One harvesting apparatus comprises a vibrational energy harvester coupled to a substantially maximal vibrational displacement node of the structural element of a vehicle, and tuned to a frequency of vibration of the maximal vibrational displacement node. The harvester may be one of a variety of harvesting devices, such as piezoelectric devices. Methods are also provided to locate structural elements which are appropriate for vibrational energy harvesting.
摘要:
A heat recovery system for an engine having an exhaust nozzle whereby exhaust gas is expelled, the heat recovery system comprising a heat exchanger disposed within the exhaust nozzle, heat exchanger containing a fluid, heat exchanger is further positioned to utilize heat energy from exhaust gas to vaporize fluid a turboexpander fluidly connected to heat exchanger and located downstream from heat exchanger, turboexpander further operatively connected to a utility a condenser fluidly connected to turboexpander and located downstream of turboexpander, and a pump fluidly connected to condenser and located between condenser and heat exchanger, pump is configured to direct fluid from condenser to heat exchanger; whereby operation of engine will generate heat energy in exhaust nozzle, vaporize fluid, and create a pressurized vapor which will drive turboexpander.
摘要:
Methods and apparatus are provided to control flow separation of an ambient flow along a surface and about a turret (12), such as by reducing flow separation aft of the turret. By reducing flow separation, the resulting turbulence may be similarly reduced such that the performance of a system, such as a laser system, housed by the turret may be improved. To reduce flow separation, a motive flow may be provided by ejector nozzles (32) that open through the surface and are positioned proximate to and aft of the turret relative to the ambient flow. The motive flow has a greater velocity than the ambient flow to thereby create a region aft of the turret of reduced pressure relative to an ambient pressure. Within this region of reduced pressure aft of the turret, a portion of the ambient flow mixes with the motive flow, thereby reducing or eliminating flow separation.
摘要:
A stand-alone power generation device (10) that provides power to an auxiliary- system on an airborne platform, includes a piezoelectric energy harvesting device (11) and an energy storage unit (60), including a battery (62) and a power conditioner (61). The device extracts energy generated by turbulent airflow around the platform and stores the energy to meet future power requirements. The piezoelectric energy harvesting device is located on a portion of an inner surface of an outward shell of the platform. The stand-alone power generation device is electrically connected to the auxiliary system. The stand-alone power generation device also includes a router that connects the power generation unit to the platform electrical distribution system. Excess power generated by the device may be delivered to the platform electrical distribution system for use by other platform systems.
摘要:
Methods and systems for providing secondary power to aircraft systems. In one embodiment, an aircraft system architecture for providing power to an environmental control system includes an electric generator operably coupled to a jet engine. The jet engine can be configured to provide propulsive thrust to the aircraft, and the electric generator can be configured to receive shaft power from the jet engine. The environmental control system can be configured to provide outside air to a passenger cabin of the aircraft in the absence of bleed air from the jet engine.
摘要:
An auxiliary power unit for an aircraft, having a compressor, an intercooler including first conduit(s) having an inlet in fluid communication with the compressor outlet and second conduit(s) configured for circulation of a coolant therethrough, an engine core having an inlet in fluid communication with an outlet of the first conduit(s), and a bleed conduit in fluid communication with the outlet of the first conduit(s) through a bleed air valve. The auxiliary power unit may include a generator in driving engagement with the shaft of the engine core to provide electrical power for the aircraft. A method of providing compressed air and electrical power to an aircraft is also discussed.
摘要:
Methods and apparatus to harvest renewable energy are provided herein. In some embodiments, a wind-powered aircraft (100) includes an airframe (110, 120, 130) suitable for untethered flight in an open airspace; and an airborne kinetic energy conversion system (200) attached to the airframe, the airborne kinetic energy conversion system comprising a turbine (202), a generator (204) connected to the turbine, and an electrical storage means (206) connected to the generator.
摘要:
With a view to optimizing the resources needed to continue the flight upon the loss of at least one main engine, the invention seeks to unburden the propulsion system that has remained operative of all or some of the non-propulsive energy tappings through a continuously-operating additional generation of non-propulsive power. More specifically the method involves, using the power production unit GPP, constantly in operation during flight and taking over some (PGA) of the nominal total non-propulsive power (PTA) of the aircraft, to supply, almost instantaneously, increased non-propulsive powers (PSU, PMU, PIU) according to at least three respective emergency settings (RS, RM, RI) upon said engine failure. The GPP control and monitoring function assesses the time elapsed for each emergency setting (RS, RM, RI), and informs the data processing unit of this time with an alarm being emitted if the operating times (Xmax, Ymax, Zmax) allocated to each emergency setting (RS, RM, RI) are exceeded, and the emergency function adjusts the aircraft's non-propulsive power tappings between the main engines and the unit GPP either automatically or on the orders of the pilot.