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Matches 1 - 50 out of 1,618

Document Document Title
WO/2019/056892A9
A pitch control system characterized by a hub (12) with at least two blade-housings (2) on the hub (12) that are disposed around the hub axis (40). The blade-housings (2) have corresponding blades (1) that engage with them. The blades (1...  
WO/2019/093913A1
The solution according to the present invention is a drive unit for air vehicle, which allows building the vertical take-off and landing vehicles, intended for application, for instance, in the production of flying taxis, as well as in t...  
WO/2019/089839A1
A bladeless unmanned aerial vehicle includes a body and two or more thruster assemblies coupled to the body. The thruster assemblies each includes a ducted fan compressor and a discharge frame. The discharge frames may be bladeless fans ...  
WO/2019/087175A1
A blade is provided for the cycloidal marine propellers or cycloidal aerial rotors which is given the capabilities, in response to control system commands, to dynamically and in real time flex itself along its chord in any required way, ...  
WO/2019/090191A1
A vertical landing and take-off aircraft VTOL transitions from a vertical takeoff state to a cruise state where the vertical takeoff state uses propellers to generate lift and the cruise state uses wings to generate lift. The aircraft ha...  
WO/2019/085150A1
A foldable propeller, and an unmanned aerial vehicle. The foldable propeller comprises: a propeller holding base (1) used for installation of a propeller blade (3), the propeller blade (3) being foldable and expandable with respect to th...  
WO/2019/083639A1
Features for a tail-sitter aircraft having efficiently designed propulsive elements are disclosed. The aircraft may have a tail with landing mounts to support the aircraft in a vertical position for takeoff and landing. The aircraft may ...  
WO/2019/082044A1
A quick propeller mounting and dismounting mechanism that enables single-handed dismounting is disclosed. The mechanism comprises a propeller mount, a set of two or more locking levers 102 pivotally fixed to propeller mount. One or more ...  
WO/2017/160656A3
A system and method for conducting electronic warfare on a target site includes the use of a small unmanned aircraft system (SUAS) having a fuselage and a Prandtl wing, wherein at least two electric ducted fans are positioned on the fuse...  
WO/2019/074349A1
The invention relates to aviation equipment. An object of this invention is to develop a new non-conventional aerodynamic apparatus that can increase the efficiency of the air flow power use to generate lifting force, control moments and...  
WO/2019/069591A1
[Problem] To maximize the static thrust of a ducted fan. [Solution] This ducted fan 1 has a duct 10, a propeller 20, a motor 30, a housing 40, and a stator 50. The propeller 20 has a hub 21 disposed concentrically with respect to the duc...  
WO/2019/060933A1
The invention relates to a spokeless and hubless wheel (52) inside which at least one electrically driveable propeller (44) is integrated in such a way that the risks associated with propeller rotation are kept as low as possible. The wh...  
WO/2019/066484A1
The present invention relates to a vertical takeoff and landing aircraft. According to one embodiment of the present invention, the vertical takeoff and landing aircraft comprises: a flight fuselage (F) on which a main wing (3) and auxil...  
WO/2019/056558A1
A propeller, a power assembly and an aircraft. The propeller comprises: a propeller fastener (10) and propeller blades (20), the propeller blades (20) being connected on the propeller fastener (10), wherein when measured at a distance of...  
WO/2019/056892A1
A pitch control system characterized by a hub (12) with at least two blade-housings (2) on the hub (12) that are disposed around the hub axis (40). The blade-housings (2) have corresponding blades (1) that engage with them. The blades (1...  
WO/2019/060214A1
The present disclosure describes a propeller control unit (100) for controlling the blade pitch of a propeller. The unit includes an electrohydraulic servo valve (106) ("EHSV") and is connected to a propeller actuator (102) that adjusts ...  
WO/2019/051993A1
Provided is a foldable propeller, comprising a propeller assembly (100) and a rotary driving assembly (200), wherein the propeller assembly (100) comprises a first blade (1), a propeller upper bracket (2), a second blade (3) and a propel...  
WO/2019/037037A1
A propeller, comprising at least one blade (1, 2, 3), the blade (1, 2, 3) comprising a rigid body (11) and a soft edge (12) connected to the rigid body (11), the soft edge (12) extending outwards from the rigid body (11). Due to the pres...  
WO/2019/040490A1
A vehicle is provided having at least one control motor that includes a drive motor having a stationary portion and a rotatable portion, where the drive motor rotatable portion is coupled to a rotor shaft, where the drive motor is config...  
WO/2019/033768A1
A propeller, a power system, and an unmanned aerial vehicle, the propeller (111, 112) being used for connection to a power unit (50) and comprising a hub (150) and at least two blades (100). The at least two blades (100) may be foldably ...  
WO/2019/033769A1
Disclosed in the present application are a folding propeller, a power assembly, and an unmanned aerial vehicle. The folding propeller comprises: a propeller hub, at least two blade assemblies, and a connector for pivoting the propeller h...  
WO/2019/029026A1
A propeller, comprising a propeller hub (10) and propeller blades (20). The propeller blades (20) are connected to the propeller hub (10); at a position whereof the distance to the center of the propeller hub (10) is 40% of the radius of...  
WO/2019/033080A1
An intentional fluid manipulation apparatus assembly with a first thrust apparatus that imparts a first induced velocity to a local free stream flow during a nominal operation requirement. The first thrust apparatus creates a streamtube....  
WO/2019/022618A1
A shroud for an aircraft configured to at least partially surround a noise source including a propeller. The shroud includes an outer layer and two or more sound absorbing materials located inside the shroud. The outer layer is configure...  
WO/2019/019161A1
Disclosed are an airscrew, a power assembly and an air vehicle. The airscrew comprises blades, wherein each of the blades comprises a blade root (110) and a blade tip (120) facing away from the blade root (110); the blade has a blade sur...  
WO/2019/019332A1
Disclosed are a propeller, a power assembly and an aircraft.A propeller (100) comprises a propeller hub (10) and a propeller blade (20), the propeller blade (20) being connected on the propeller hub (10). At a distance of 40% of the radi...  
WO/2019/019343A1
Disclosed is a propeller comprising a propeller hub (10) and a propeller blade (20), the propeller blade (20) being connected on the propeller hub (10). At a distance of 40% of the radius of the propeller from the centre of the propeller...  
WO/2019/017833A1
An aerial vehicle including a first wing structure and a second wing structure which intersects the first wing structure perpendicularly at a position offset from a midpoint of a transverse axis of the first wing structure in a direction...  
WO/2019/012191A1
The present invention relates to a device for directly controlling a blade which comprises a stator (1), at least one blade support (7) composed of at least one curved magnet (6), the blade support (7) being secured to at least one blade...  
WO/2019/000560A1
A propeller, a power assembly, and an aircraft. The propeller comprises a propeller seat (6) and propeller blades (1) connected to the propeller seat; an attack angle of the propeller blade (1) at a position being 45.8% of the radius of ...  
WO/2019/004807A1
The invention relates to designs of rotating-blade cycloidal propulsive elements. A dual-rotation rotor for a cycloidal propeller comprises a primary rotor which rotates about its own axis and is kinematically connected to a drive shaft....  
WO/2018/232429A1
The invention relates to a protective propeller frame, in the interior of which at least one electrically driven propeller (12) is integrated and a protective device (9, 10, 16) of which surrounds the propeller to such a degree that the ...  
WO/2018/232430A1
The invention relates to a protective propeller frame, in the interior of which at least one electrically driven propeller (12) is integrated and a protective device (9, 10, 16) of which surrounds the propeller to such a degree that the ...  
WO/2018/223089A2
Systems and methods are contemplated for favorably improving flight dynamics of aircraft, including enhanced aerodynamic braking and improved flight maneuverability. Air braking systems selectively position a first set of blades at a neg...  
WO/2018/223089A3
Systems and methods are contemplated for favorably improving flight dynamics of aircraft, including enhanced aerodynamic braking and improved flight maneuverability. Air braking systems selectively position a first set of blades at a neg...  
WO/2018/217667A1
Apparatus, systems, and methods are contemplated for electric powered vertical takeoff and landing (eVTOL) aircraft. Such are craft are engineered to carry safely carry at least 500 pounds (approx. 227 kg) using a few (e.g., 2-4) rotors,...  
WO/2018/212831A1
A lift fan includes a stator which is configured to output a magnetic field. The lift fan also includes a first housing which in turn includes a blade, a second housing, and a magnet array. The magnet array is coupled to either the first...  
WO/2018/208889A1
A system and method of noise mitigation for hybrid and electric aircraft, the aircraft having a controllable pitch propeller or rotor(s) with a plurality of blades. The propeller or rotor(s) are driven by a drive system to provide thrust...  
WO/2018/208220A1
An aerial vehicle may include a first wing structure. The aerial vehicle may further include a first propeller and a second propeller disposed along the first wing structure. The aerial vehicle may further include a second wing structure...  
WO/2018/206860A1
Translational flight is provided by a propeller or rotor. There are single propellers or rotors and contra-rotating double propellers or rotors. The first propeller or rotor evacuates the depression in front of the propeller or rotor for...  
WO/2018/196123A1
A propeller (20), a power system (100) comprising the propeller (20), and an unmanned aerial vehicle comprising the power system (100). The propeller (20) is configured to be connected to a drive device (10) and can be driven by the driv...  
WO/2018/194214A1
A fixed-wing drone using a variable pitch propeller, according to an embodiment of the present invention, comprises: a body section formed in a lengthwise direction from a front end to a rear end; wing sections formed on both sides of th...  
WO/2018/190670A1
The present invention relates to a blade tip rotary vane which, unlike an existing propeller, is formed by attaching a vane to a blade tip portion at which the rotational speed of the vane is fast, wherein the blade tip rotary vane is ch...  
WO/2018/191083A1
A propulsion system for an aircraft may include two coaxial propellers to operate in two different flight conditions. Each propeller may be attached to a driveshaft via corresponding one-way devices that allow each propeller to be driven...  
WO/2018/190922A1
In one embodiment, an aircraft includes a number of propellers N prop , wherein each propeller comprises a diameter d prov , has a propeller efficiency η ρτορ , and is configured to absorb power p prop to rotate at a rate RPM to gen...  
WO/2018/189249A1
The invention relates to a device (1) for measuring rotor blade movements of an aircraft over the entire rotor rotation in flight, having at least one rotatably arranged rotor blade (2) and an image recording unit (4) for recording image...  
WO/2018/184291A1
A blade (100) for use in a propeller (300). At where the distance on the blade (100) to the center of gyration of the propeller (300) is 58.33% of the radius of gyration of the propeller (300), the angle of attack of the blade (100) is 1...  
WO/2018/184635A1
The invention relates to a self-adhesive plastic film (10) for application to surfaces (1) over which a fluid flows, e.g. the outer skin of aircraft. The self-adhesive plastic film (10) for application to surfaces (1) over which a fluid ...  
WO/2018/183535A1
An unmanned aerial vehicle with deployable components (UAVDC) is disclosed. The UAVDC may comprise a fuselage, at least one wing, and at least one control surface. In some embodiments, the UAVDC may further comprise a propulsion means an...  
WO/2018/172754A1
A propeller assembly (200) comprising a propeller hub (201) which can be driven about an axis and at least two propeller blades (203) each mounted to the hub at a point distal from the axis by pivoting means (203, 211, 212) alloying the ...  

Matches 1 - 50 out of 1,618