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WO/2004/078465A1 |
A wind turbine blade comprising a spar and a method of preparing these are provided. The spar comprises a laminated member having a surface to be connected to the surface shells of the blade reinforced by oriented first type fibres and t...
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WO/2004/078462A1 |
A method for preparing a more reliable connection between two members (2, 4) is provided. The method involves the use of a gas-removal layer (6), which allows for gas transport in a number of overall directions in a plane of the gas-remo...
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WO/2004/078442A1 |
A pre-consolidated pre-form and a method of pre-consolidating pre-forms are provided. Pre-consolidation is a process, whereby gas inside a pre-form is removed and a low porosity is produced. It involves redistribution of resin and option...
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WO/2004/078461A1 |
A connection between composites (10, 12) with non-compatible properties and a method of preparing of such connections are provided. The composites comprise first and second type fibres, respectively, as well as resin. The connection comp...
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WO/2004/067380A1 |
A proprotor blade (27a, 27b, 127a, 127b) having a fixed, spanwise, leading edge slot (215) located in at least the inboard portion of the proprotor is disclosed. The slot (215) is formed by a selectively shaped slat (217) disposed in a s...
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WO/2004/065210A1 |
The inventive propelling device for moving in an air or water environment comprises a power plate in the form of a flattened downwardly extendable cone which is provided with a lid having a suction hole and a disc. Said disk is arranged ...
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WO/2004/065211A1 |
The inventive propelling device can be used for moving in an air or water medium. The inventive propelling device consists of a cylindrical body provided with flat lids having a section which is radially cut out away from the axis of rot...
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WO/2004/063571A2 |
A circulator device comprising a large diameter fan having reinforced fan blades with a tapered airfoil shape is disclosed. The fan blades may be formed using an extrusion method of fabrication, wherein each fan blade (316) may comprise ...
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WO/2004/045948A1 |
A rotary blade comprising a hollow elongate blade envelope (2) having a desired aerodynamic cross section, said blade envelope (2) accommodating a single unitary elongate blade spar (1) which is of an axially strong material having some ...
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WO/2004/033295A1 |
The present invention discloses an aircraft capable of vertical take-off and landing. The aircraft comprises a single constant speed variable pitch propeller (3), a fuselage (2), an empennage (21, 22) and main wings (6) fixed to the fuse...
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WO/2004/020279A1 |
The invention relates to a propeller comprising a base (2, 15) and numerous blades (1, 14) which extend out from said base and which are inclined upstream, i.e. in the direction of movement (D1), towards the front of the vessel. The afor...
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WO/2004/020278A1 |
The invention relates to a propeller comprising a base (2, 15) and numerous blades (1, 14) which extend out from said base and which are inclined upstream, i.e. in the direction of movement (D1), towards the front of the vessel. The afor...
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WO/2004/020280A1 |
The invention relates to a propeller comprising a base (2, 15) and numerous blades (1, 14) which extend out from said base and which are inclined upstream, i.e. in the direction of movement (D1), towards the front of the vessel. The afor...
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WO/2004/011330A1 |
A novel concept for a propeller blade configuration incorporates the model of the natural wave behavior. The leading edge (3) of the propeller blade has a convex segment (8) followed by a concave segment (6), as seen in a plan view. The ...
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WO/2004/009723A2 |
Low light level illumination is applied to rotary blades (102, 202) of vehicles to increase visibility to minimize ground injuries. Either photoluminescent paint (208) or photoluminescent film (104) may be affixed to rotary blades (102, ...
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WO/2004/002821A1 |
A ducted air power plant, comprising a motor driven fan (7) situated in a duct (4), the fan (7) having an air intake side and in operation providing a high pressure air stream in the duct, and the fan being located adjacent air splitter ...
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WO/2003/104821A1 |
The invention concerns a device for detecting and recording impacts along several axes on an aeronautic propeller blade comprising an accelerometer (1) integrated inside an aeronautic propeller blade root end (10) and an electronic modul...
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WO/2003/102599A1 |
The invention concerns a device for detecting and recording impacts along several axes on an aeronautic propeller assembly consisting of a hub (13) and two blades (14), characterized in that it comprises a plurality of accelerometers (1)...
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WO/2003/099653A1 |
The inventive aircraft for vertical take-of and landing is provided with a propeller which comprises two discs (said discs have an orifice in the center thereof) which are connected to each other by means of blades. Said discs and blades...
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WO/2003/097452A1 |
The inventive wing (1) comprises an axisymmetrical plate, whose edges are embodied such that they are sharp. Said plate is provided with two rounded bosses arranged symmetrically with respect to the center thereof. Each boss is twisted w...
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WO/2003/091570A1 |
The device for adjusting a rotor blade of a wind energy turbine is provided with a driving device (12) for driving an adjusting element (24) for selectably rotating the rotor blade (26) in both directions about its longitudinal axis (28)...
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WO/2003/091100A1 |
The invention concerns a propeller with interactive blades which brings an improvement to prior art propellers. In prior art, each blade braces individually the fluid (air, water, or other fluids) without any interaction between the blad...
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WO/2003/080430A1 |
A propeller control system (20) provides for actuation through supply pressure only. A transfer bearing (38) thereby requires only a single land. The supply pressure is metered at a pitch change valve (40) within the rotating propeller s...
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WO/2003/078248A1 |
A permanent magnet alternator (PMA) (34) includes a stator (36) which rotates with a propeller shaft (28) and a rotor (38) which is mounted within the stator (36) and rotates with a gas turbine engine output shaft (24). The rotor (38) is...
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WO/2003/066429A2 |
A VTOL vehicle with tiltable nacelles (14 and 16), with counter rotating fans which are directly driven by two included rotary engines. In an alternate embodiment there are two additional nacelles with additional thrusters. A redundant c...
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WO/2003/056139A1 |
A rotor comprising a hub (112) supporting a blade (111), the blade (111) having an axial extent and extending transversely outwardly from the hub to define a first (114) and second surface (115) of substantially corresponding configurati...
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WO/2003/033344A2 |
A disclosed vertical lift flying craft (10) includes a lift unit (20) that, during operation, develops a force including an upward component. A payload unit (50) suspends from the lift unit (20). The payload unit (50) suspends from the l...
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WO/2003/016134A1 |
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 ...
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WO/2003/014853A1 |
A fluid flow control mechanism is provided for linearizing a fluid flow. The mechanism includes a frame having a cylindrical outer baffle which rotatably supports a plurality of propeller elements thereon. Each propeller element defines ...
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WO/2002/094656A1 |
Maintenance requirements on a variable pitch propeller control system are minimized by eliminating the need for mechanical elements, such as a flyweight, mechanism in a secondary control for the variable pitch propeller. The system inclu...
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WO/2002/072420A1 |
To protect an article with an aerodynamic surface, such as an aeroplane propeller or helicotper rotor, from erosive damage caused by flying particulate matter, a thin elastomeric protective covering is provided. This layer covers approxi...
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WO/2002/051702A2 |
The expense of a bearing employed at the interface of a yoke (22) and a propeller blade pin (14) in a variable pitch propeller assembly is reduced in a bearing construction (16) wherein a bearing race (48) includes a crowned surface (50)...
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WO/2002/026560A1 |
A lift generator by a continuously rotating impeller, wherein a cover is installed closely to the outer peripheral surface of the impeller having an axis parallel with a ground surface in an area of half the outer peripheral surface ther...
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WO/2002/020349A1 |
A two piece spinner assembly comprises an inner structure and an outer structure. The inner structure is configured to provide structural support to the assembly, while axially retaining the fan blades of the engine in position. The oute...
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WO/2002/016778A1 |
The invention relates to a covered propeller for conveying gases and liquids, for operating land, air and water vehicles and operating in a reverse mode as a water or wind generator. Conveyor blades (21, 24) are disposed around a rotatio...
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WO/2002/016739A2 |
An aircraft control system includes a propeller governor (100) in which a stepper motor (170) is used to apply a compression force on a speeder spring, and a turbocharger in which a stepper motor (260) is used to actuate a needle valve (...
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WO/2002/012061A1 |
There is provided a combined pressure and thrust fan consisting of a solid circular disk (50) with a plurality of radially spaced airfoil-shaped blades (52). The selective direction or airflow over an aft sector of the fan provides net t...
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WO/2002/008054A1 |
A method and system for developing a propulsive force for driving different types of water, air or land vehicles. Four blades (32, 33, 34 and 35) having preferably airfoil sections are rotated around the axis of the driving shaft (11) an...
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WO/2001/098745A1 |
A method of adaptively balancing a rotating mass comprises using a mass arranged in at least one circumferential region about the axis of rotation. Vibrations generated by the rotating mass are detected and used to generate control signa...
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WO/2001/064510A1 |
A high performance propeller comprises a hub and a plurality of blades, characterized in that on the tip of each blade is formed an extension that is substantially perpendicular to the blade and extends from the tip either to one side of...
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WO/2001/058759A1 |
An engine arrangement (14) comprises a gas turbine engine unit (16) and first and second support members (18, 20). The support members (18, 20) extend from a structural component (24) of the engine casing (22) to support the engine unit ...
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WO/2001/033084A1 |
A vortex generating apparatus (60) has the capability of attracting and removably adhering one or more solid objects. The apparatus (60) comprises an impeller housed within a shell. The vortex attractor generates a vortical fluid flow (6...
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WO/2001/029414A1 |
The invention relates to a rotor blade of a wind power installation and to a wind power installation containing a rotor blade of this type. Rotor blades with various configurations have been known for a long time. Known rotor blades can ...
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WO/2001/014206A1 |
A wiring system for an electrothermal propeller deicer (252) for both left and right hand rotating propellers (251), where the deicer (252) has leads extending therefrom and terminating in a connector (302) which mates with a connector (...
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WO/2001/002742A2 |
The invention relates to a rotor (1) through which a fluid flows in a main direction of flow (H) and which is provided with at least one rotor blade (4), said rotor blade being arranged in such a way that it can rotate about a rotor axis...
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WO/2000/068569A1 |
The invention relates to a wind power facility with a vertical rotor for generating energy, wherein a three-blade rotor (5) operates according to the cross-flow principle. The outer admission surface construction (11) and the facility ha...
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WO/2000/066429A1 |
A propeller blade (10) for attachement to a receiving member (101) of a hub (100) of a propeller, is disclosed. The blade comprises a composite spar (12) having an elongated portion (14) formed in the shape of an airfoil. The elongated p...
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WO/2000/066428A1 |
A pressure relief device (10) for preventing over pressurization of a propeller hub is disclosed. The pressure relief device is designed to fit within a ball hole opening (42) in the hub arm of the hub. The pressure relief device include...
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WO/2000/051700A1 |
The invention relates to a propeller, especially for driving model airplanes, comprising a blade hub (20) mounted on the drive shaft of a motor, wherein the blade hub (20) has an axle (82) on the side opposite the drive shaft and the ext...
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WO/2000/050779A1 |
Blades, including helicopter rotor blades, gas turbine engine fan blades, air moving machinery fan blades, and the like, have an air inlet near the hub of the blade, which may be on the pressure side of the blade and/or near the leading ...
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