Abstract:
An aircraft includes a fuselage, a forward wing assembly, and aft wing assembly, and a propulsion system. The propulsion system includes a first primary thrust propulsor and a first secondary thrust propulsor, the first primary thrust propulsor being different than the first secondary thrust propulsor. Both the first primary thrust propulsor and the first secondary thrust propulsor are mounted to the same one of: a starboard side of the aft wing assembly, a port side of the aft wing assembly, a starboard side of the forward wing assembly, or a port side of the forward wing assembly.
Abstract:
A propeller includes a hub coaxially surrounding a longitudinal axis. A ring shroud coaxially surrounds the longitudinal axis and is spaced radially from the hub. The ring shroud includes an inner ring surface and a radially spaced, oppositely facing outer ring surface. At least one propeller blade is fixedly attached to both the hub and the inner ring surface and extends radially therebetween for mutual rotation therewith. At least one extending blade has a first extending blade end radially spaced from a second extending blade end. The first extending blade end is fixedly attached to the outer ring surface. The second extending blade end is cantilevered from the first extending blade end and is radially spaced from the ring shroud.
Abstract:
Die Erfindung ist ein Tragflächenflugzeug (10) mit einer Rumpfsektion (12) und einem ersten und zweiten Tragflächenabschnitt (14, 16) beidseitig der Rumpfsektion (12), wobei unterhalb und/oder oberhalb des ersten und zweiten Tragflächenabschnitts (14, 16) jeweils zumindest eine Antriebseinheit (24) angeordnet ist, welche zumindest einen Elektromotor in Form eines Doppelspulenaktormotors (34) und eine mittels des Doppelspulenaktormotors (34) angetriebene Luftschaufeleinheit (36) umfasst, sowie ein Verfahren zum Betrieb eines Tragflächenflugzeugs (10) mit zumindest zwei derartigen Antriebseinheiten (24).
Abstract:
A combined flying-driving vehicle having a unique hybrid propulsion system architecture that provides a very high level of reliability and functionality to the user.
Abstract:
An unmanned air module includes one or more rotors, engines, a transmission and avionics. Any of several different ground modules may be attached to the air module. The air module may fly with and without the ground module attached. The ground module may be a vehicle ground module and may be manned. The vehicle ground module may transport the attached air module across the ground. The air module may have two rotors, which may be ducted fans, and three different configurations: a tandem rotor configuration, a side-by-side configuration, and a tilted-rotor configuration.
Abstract:
The invention relates to a system providing vertical take off and landing for military aircrafts or civilian airplanes, unmanned aerial vehicles and so on. The rotating fans working with electric motor taking electricity from the very powerful generator integrated with the main motor, provides balance and take off-landing of aerial vehicle. The rotors, which haven't axis shafts, belonging to special designed electric motors, rotates with the spiral fan blades integrated with the rotor in the magnetic shell supporting with bearings. The system uses the advantages of direct driver technology and brushless electric motor together. This system doesn't cause an environmental pollution and a noise pollution and works with high efficiency for years. Both production and also maintenance of this system are very easy. The project relates to a system providing a feature of vertical take off and landing as well as to remain in the air without motion for hours at the point determined beforehand. This feature enables all aerial vehicles used for search and rescue operations and also special military missions successfully.
Abstract:
A system for augmenting ducted fan thrust is provided, the system including a peripheral ejector comprised of an inner cowling member (107) and an outer cowling member (101). With the addition of actuators (111) mounted between the trailing edges of the inner and outer cowling members, the system may be used to generate control moments in the ducted fan. The peripheral ejector may be segmented to form discrete ejector control sections.
Abstract:
Packaging (10) for consumer goods having a discontinuous tactile coating (16) is provided. The discontinuous tactile coating (16) is formed by applying one or more varnishes (18) to the outer surface of the packaging (10) in a pattern comprising a plurality of raised features having a height of at least about 10 microns and a separation of at least about 20 microns. In a preferred embodiment, the discontinuous tactile coating is formed by applying one or more tinted varnishes to the outer surface of the packaging.
Abstract:
A ducted fan for a VTOL vehicle includes a substantially cylindrical duct having an inlet at an upper end and an outlet at a lower end, a propulsion unit inside the duct, between the inlet and the outlet, and at least one group of control vanes located above the inlet a distance equal to at least one-quarter vane chord length, while a related method includes the steps of (a) shaping the inlet of the duct to have a diameter equal to or less than a diameter of the duct proximate the outlet, and (b) locating a first group of inlet vanes a distance above the inlet as a function of duct inlet diameter, and still another method creates side forces and rolling moments through the use of cambered vanes.
Abstract:
A system for cooling a ducted fan aircraft engine includes a first nacelle surrounding the engine and a second nacelle substantially concentrically surrounding the first nacelle. The system includes a first spinner coupled around a base of a rotor of the ducted fan and a second spinner substantially concentrically surrounding the first spinner and forming a duct between first and second spinners. The second spinner includes an opening to allow air to flow into the duct. The rotor includes a plurality of airfoils penetrating through the first and second spinners. Each of the airfoils includes a first portion located in the duct, and a second portion located between the second spinner and a fuselage of the ducted fan. The first portions of the airfoils provide cooling airflow over the engine and structural support for the second portions. The second portions of the airfoils provide thrust for the aircraft.