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Matches 1 - 50 out of 1,672

Document Document Title
WO/2019/175213A1
The present invention involves a method for manufacturing a blade (1) for a propeller, which blade (1) has a leading edge (2) and a trailing edge, the method comprising the steps of : forming a conduit in the blade (1), making a pluralit...  
WO/2019/173831A1
The present invention relates to a method, system, and apparatus of flight system for individual users using electric ducted fans. The flight system comprises a modular unit, which comprises a plurality of electric ducted fans, means for...  
WO/2019/166703A1
An electrical generator (9) is housed in an annular cavity (14) between the casing (15) and the propeller shaft (3) of a turboprop, while imposing little or no additional space requirement and with lightweight ancillary equipment (16) an...  
WO/2019/165930A1
A double-ring rotating wing spherical cabin aircraft, comprising a spherical cabin (1), an upper protective cover (2), a lower protective cover (3), a rotating wing fixed ring (4), an upper rotating wing rotor (5), a lower rotating wing ...  
WO/2019/164565A1
An aircraft includes a main wing (where the main wing is a fixed wing) and a main wing rotor that extends outward on a trailing edge side of the main wing (where the aircraft is kept at least partially airborne at least some of the time ...  
WO/2019/158876A1
The invention relates to a profiled air flow structure comprising a body (62) and acoustically absorbent porous regions (52), having an upstream, a downstream, a leading edge (164) upstream and/or a profiled trailing edge downstream, and...  
WO/2019/158875A1
An aircraft turbine engine comprises an annular wall (160) for splitting a flow of air, downstream of an upstream fan (14), first stationary blades (24) for guiding a primary flow and the second stationary guidance blades (26) attached t...  
WO/2019/155656A1
[Problem] To provide a propeller which is configured to be lightweight, maintains a loop shape during rotation, and has low noise, a propeller designing method, a propeller designing method program, and an information storage medium. [So...  
WO/2019/156724A1
Toroidal propeller. The propeller includes a hub supporting a plurality of elongate propeller elements in which a tip of a leading propeller element curves into contact with a trailing propeller element to form a closed structure with in...  
WO/2019/148879A1
A propeller, a power component and an aircraft. The angle of attack of a blade (20) is 24.60°±2.5° at 42.9% of the radius of the propeller (100) from the center of a hub (10); the angle of attack of the blade (20) is 23.50°±2.5 at 5...  
WO/2019/148878A1
A propeller (100), a power assembly (200), and an aircraft (1000); at a distance of 41.9% of the radius of the propeller (100) from the center of the hub (10), the angle of the propeller blade (20) is 25.65°±2.5°; at a distance of 53....  
WO/2019/148088A1
Systems, devices, and methods that may include: determining one or more take-off variables (700) for a vertical take-off and landing (VTOL) aerial vehicle (300); increasing an altitude of the VTOL aerial vehicle to a first altitude (706)...  
WO/2019/138343A1
An aerial vehicle is described herein. The aerial vehicle includes a lift mechanism that includes a rotor blade assembly coupled to a motor assembly. The rotor blade assembly includes a plurality of rotor blades that are pivotably couple...  
WO/2019/139559A1
The invention relates to aviation technology, more particularly to aircraft construction, and even more particularly to a cycloidal rotor that can be used to generate lift and to control an aircraft. The present cycloidal rotor comprises...  
WO/2019/127374A1
Provided are a positioning clamp and an assembling apparatus, which relate to the technical field of assembling apparatuses. The positioning clamp is used for positioning blades and electric motors, and comprises a carrier plate (1) and ...  
WO/2019/131583A1
[Problem] To provide a particle capture technology that makes it possible to maintain airflow efficiency. [Solution] This particle capturer comprises: an airflow generation means that generates an airflow; and a capture means that captur...  
WO/2019/128298A1
An embodiment of the present application relates to the technical field of propellers. Specifically disclosed are a propeller, a propeller suite, a power assembly, a power suite and an unmanned aerial vehicle, wherein the propeller compr...  
WO/2019/132285A1
The present invention relates to a tilting blade assembly of a drone which is capable of vertical takeoff and landing and thus does not need a runway, the tilting blade assembly comprising: a main housing which has an installation space ...  
WO/2019/127028A1
A propeller (100), comprising blades (20). Each blade (20) comprises a blade root (25), a blade tip (26) facing away from the blade root (25), a pressure face (21), a suction face (22) opposite to the pressure face (21), a leading edge (...  
WO/2019/125778A1
A rotor unit is disclosed. The rotor unit includes a hub and a stacked rotor blade. The hub is configured to rotate about an axis in a first rotation direction. The stacked rotor blade is rotatable about the axis and further includes a f...  
WO/2019/119940A1
A propeller assembly method, comprising: using a rivet (17) to pass through a blade (16) and a blade base (15), restricting the blade (16) within a corresponding blade (16) assembly position on the blade base (15), the number of the blad...  
WO/2019/119877A1
Embodiments of the present application relate to the technical field of propellers. Specifically disclosed are a foldable propeller, a power component, and an unmanned aerial vehicle. The foldable propeller comprises a propeller hub, at ...  
WO/2019/119379A1
A propeller comprises a propeller blade (100). The propeller blade rotates to form a propeller disc. The propeller blade (100) comprises a root portion (101) and a tip portion (102) away from the root portion (101). The propeller blade (...  
WO/2019/117304A1
The present invention provides a rotary craft which can change the pitch of a blade by appropriately driving an actuator even when the actuator has a low output, with a relatively simple configuration. A helicopter (10) according to the ...  
WO/2019/118212A1
A corrugated lift fan rotor is disclosed. In various embodiments, a rotor includes an upper skin, a lower skin, and an at least partly corrugated core encased between the upper skin and the lower skin. In some embodiments, the core compr...  
WO/2019/115532A1
The invention relates to a drive device for an aircraft, comprising a blade (2), which can be rotated about an axis of rotation (51) of the drive device along a circular path (52) and is mounted for pivoting about a blade bearing axis pa...  
WO/2019/116101A1
A variable-geometry vertical takeoff and landing (VTOL) aircraft system may transport passengers from a departure point to a destination via partially or fully autonomous flight operations. The VTOL aircraft system may operate in hover-b...  
WO/2019/113573A1
An example method of manufacturing a wing includes providing a wing frame. The wing frame includes a primary spar, a drag spar, a plurality of transverse frame elements having at least one spar joiner, and a plurality of mourning element...  
WO/2019/109621A1
A drone includes one or more rotatable propellers and one or more fixed propellers powered by one or more battery powered electric motors for providing upward and forward thrust to the drone during upward and forward movement of the dron...  
WO/2019/112681A1
A commanded control signal is compared against an adaptive control signal in order to detect a rotor strike by a rotor included in an aircraft, wherein the adaptive control signal is associated with controlling the rotor and the adaptive...  
WO/2019/109791A1
A differential variable pitch blade, comprising: at least two airfoil sections (301), the adjacent airfoil sections (301) being rotatably connected, each airfoil section (301) being provided with a first through hole and a second through...  
WO/2019/108517A1
Devices, systems, and methods are provided in which a wing of a tiltrotor aircraft is rotated during operational flight, for example from a position perpendicular to the aircraft's fuselage through an angle of 30 or more in the direction...  
WO/2019/104625A1
A connection structure, power system and unmanned aerial vehicle, used for increasing the connection reliability of the power system of an unmanned aerial vehicle and simplifying the structure of the power system to reduce production cos...  
WO/2019/100203A1
Systems and methods are provided for detecting attachment of a propeller (120) to an unmanned aerial vehicle (UAV). The systems and methods may utilize one or more sensors to detect a spatial configuration between a propeller (120) and a...  
WO/2019/100482A1
An unmanned aerial vehicle-based load control method and device, and an unmanned aerial vehicle. The unmanned aerial vehicle comprises: an unmanned aerial vehicle body, propeller arms connected at first ends to the unmanned aerial vehicl...  
WO/2019/097425A1
A two degrees of freedom actuator for example for multi-bladed rotor of an aircraft with at least two blades that are driven in rotation about a main rotation axis by primary actuator, and a secondary actuator that is arranged to rotate ...  
WO/2018/080699A8
A propeller blade (18) spanning radially from a root (32) to a tip (34) and spanning axially from a leading edge (36) to a trailing edge (38) spaced from the leading edge forming an airfoil (39) therebetween where a sweep line (62) can b...  
WO/2019/099293A1
A passively varying pitch propeller includes a hub and a first and a second blade assembly. Each blade assembly respectively has a blade having an airfoil shape yielding a positive zero-lift pitching moment for the blade assembly, a pitc...  
WO/2019/095841A1
An aircraft impeller (001) and an aircraft, relating to the field of aircraft drive components, the aircraft impeller (001) comprising a frame body (100) and a rotating wheel part (200); the frame body (100) comprises a mounting groove (...  
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...  

Matches 1 - 50 out of 1,672