Abstract:
A VTOL aircraft (10) (or other vehicle such as a sea vehicle) includes a pair of elongated ducts on opposite sides of the vehicle body, and a plurality of powered propellers (or other propulsion units such as jet engines) mounted within and enclosed by each of the elongated ducts (134a, 13b), such as to produce an upward lift force to the vehicle. Each of the elongated ducts has a short transverse dimension slightly larger than the diameter of the blades of each propeller (14, 15) enclosed thereby, and a large transverse dimension slightly larger than the sum of the diameters of the blades of all the propellers enclosed thereby.
Abstract:
The present invention relates to a power unit for transportation which is fitted with an energetic module (3) in the form of one or more rotor units (6). Each unit (6) includes a shaft (7) onto which a rotating frame (8) is mounted, while blades (9) are attached to said rotating frame in order to generate drag forces. Each unit (6) also includes a main drive (10) connected at least to the engine (5) of the power unit of a vehicle (1), wherein said engine is used as a power source to rotate the blades (9) of the rotor units (6).
Abstract:
Propulsion unit for slow light aircraft, especially of the microlight type. Said unit comprises a multiple blade propeller (10) surrounded by an annular shroud (11). The shroud forms an upstream convex lip (12a), a substantially cylindrical neck (12b) located facing the swept area of the blade end, and a substantially truncated downstream diffusor (12c), having a half-apex angle less than 12 DEG . The propeller blades (10) have, between the blade end and the balde tip, a twist of 30 DEG to 80 DEG , especially 45 DEG to 60 DEG . The play between the blade end and the shroud neck is less than 10 mm. The propulsion unit according to the invention results, in slow flight applications, in considerable weight gain in relation to known propulsion units producing comparable thrusts and in a significant reduction in the noise level.
Abstract:
The present invention relates to a vertical take-off and landing ("VTOL") aircraft and especially to this having hybrid or electric drive, used to transport people or goods from one point to the other without the necessity of airport runways. An aircraft (1), with vertical take-off and landing, comprises a fuselage (2) and some wings (3), extensible, located side by side from the fuselage (2). The fuselage (2) contains a cockpit (4) which has an aerodynamic shape and is extended with two members (5), distanced by an opening (6). The aircraft (1) uses a modular propulsion system (7) which contains two multiple propellers (8), rotatable mounted on the cockpit (4) in the front of the wings (3), side by side from the fuselage (2), and another multiple propeller (9) located in the opening (6) and which is rotatable mounted between the two members (5).
Abstract:
Die Erfindung betrifft ein Fluggerät mit einer Tragstruktur (12) und einer von der Tragstruktur (12) aufgespannten, mit einem Gas befüllbaren Hülle (10). Erfindungsgemäß ist vorgesehen, dass die Tragstruktur (12) eine Mehrzahl von Stab- oder Rohrabschnitten (24-30) aufweist, die eine kreisförmige, ovale oder polygonale Hauptspannebene für die Hülle (10) definieren.
Abstract:
Die Erfindung betrifft einen Mantelpropeller (100) mit einem Gehäuse (102) mit einer Einlassöffnung (104) und einer Auslassöffnung (106), wenigstens einem in dem Gehäuse (102) um eine Rotationsachse (R) drehbar gelagerten Propeller (108) und einem Antrieb für den Propeller (108), wobei der Antrieb dazu ausgebildet ist, den Propeller (108) in Rotation um die Rotationsachse (R) zu versetzen, sodass durch den Propeller (108) ein Luftstrom von der Einlassöffnung (104) durch das Gehäuse (102) zur Auslassöffnung (106) erzeugt wird. Erfindungsgemäß ist dabei vorgesehen, dass der Mantelpropeller (100) ferner Steuermittel (116, 118) zur Veränderung der freien Querschnittsfläche der Auslassöffnung (106) aufweist.
Abstract:
Erfindungsgemäß ist eine Antriebsvorrichtung für ein Flugzeug vorgesehen, mit einer Wellenturbine, die über eine Welle mit einem Impeller gekoppelt ist. Der Impeller weist eine Ansaugseite und eine Schubseite auf. Die Wellenturbine ist im Bereich der Ansaugseite des Impellers angeordnet. Die Antriebsvorrichtung ist weiterhin zur Anordnung an einem Flugzeugrumpf und/oder im Inneren eines Flugzeugrumpfes und/oder in einem Gehäuse an einer Tragfläche ausgebildet.
Abstract:
Die Erfindung ist eine Antriebseinheit (20) für ein Luftfahrzeug (10), welche zumindest einen Elektromotor und einen mittels des Elektromotors angetriebenen Propeller (14) umfasst, wobei als Elektromotor ein Elektromotor (22) in Form eines Doppelspulenaktormotors (22) fungiert, sowie ein Luftfahrzeug (10) mit einer solchen Antriebseinheit (20) und schließlich die Verwendung eines Doppelspulenaktormotors (22) in einer solchen Antriebseinheit (20).
Abstract:
In accordance with the present invention, an embodiment of a rotational ducted fan motor comprises a monolithic rotational ducted fan rotor, an electric propulsion system, a static aft-shroud comprising electrochemical-energy-storage, and an engagement system. The rotational ducted fan rotor is the portion of a ducted fan motor comprising a propeller, a duct, and a center hub, and having the effect of increasing the pressure difference from upstream to downstream of the propeller. The electric propulsion system comprises permanent magnets affixed to the rotational ducted fan rotor, repelling magnetic coils affixed to the static aft-shroud and electrical power provided by the electrochemical-energy-storage comprised within the aft-shroud.
Abstract:
A rotary device comprises a frame with a guide for flowing medium, a rotor with a number of blades, whereby a relation is obtained between the flowing medium and the rotation of the rotor, and energy converting means, the one part of which is connected to the frame and the other part to the rotor. The device has the feature that the end zones of the blades are connected to a ring, the ring has a radial section with the shape of an isosceles triangle or trapezium, the medium guide has an encircling recess, the form of which corresponds to the form of the ring and the ring fits with clearance into the recess, permanent magnets are added to the truncated conical surfaces, electromagnets debouch on both the corresponding surfaces of the recess, this such that the ring and the frame together form an annular induction motor or an electric generator.