Class / Patent application number | Description | Number of patent applications / Date published |
244022000 | Beating wing sustained | 13 |
20080251632 | Wing-Flapping Flying Apparatus and Method of Using the Same - The present invention provides a wing-flapping flying apparatus, which can fly by moving its wings similar to a bird hovering or flying in the air by flapping its wings. The wing-flapping flying apparatus comprises: a body; a rotating shaft rotatably joined to the body; driving means for rotating the rotating shaft; and wings reciprocated between two points and connected to the rotating shaft so as to be rotated together with the rotating shaft and to be relatively torsionally rotated with respect to the rotating shaft. The wing-flapping flying apparatus generates lift throughout an entire wing-flapping movement without generating lift only throughout the half of a wing-flapping movement or offsetting the generated lift by the other half of the wing-flapping movement. Therefore, the wing-flapping flying apparatus can provide not only a stable flight but also a softly hovering or ascending and descending flight. | 10-16-2008 |
20100288871 | REMOTE-CONTROLLED FLUTTERING OBJECT CAPABLE OF FLYING FORWARD IN UPRIGHT POSITION - The present invention provides a remote-controlled ornithopter capable of flying forward in the upright position, which includes X-shaped main wings? having opposite phases to offset moments applied to a fuselage of the ornithopter. The ornithopter includes the fuselage ( | 11-18-2010 |
20100308158 | FLAPPING APPARATUS WITH LARGE FLAPPING ANGLES - The present invention provides a flapping apparatus with a large flapping angle. The flapping apparatus includes a frame, a drive motor, a slider, connection links, actuating links and wings. The frame includes I-shaped plates which face each other in parallel, and coupling rods which couple the opposite corners of the upper ends of the I-shaped plates to each other. The drive motor is fastened to the frame such that a rotating shaft thereof is disposed inside the frame. The slider includes lateral bars which are reciprocated upwards and downwards. The connection links are rotatably coupled at first ends thereof to both ends of the lateral bar. The actuating links are rotatably coupled at first ends thereof to second ends of the connection links. The actuating links are rotatably coupled at second ends thereof to the coupling rods. The wings are respectively attached to the upper surfaces of the actuating links. | 12-09-2010 |
20100308159 | FLAPPING-WING FLYING VEHICLE - The invention relates to a flapping-wing flying vehicle, the vehicle including a frame having two pivots mounted thereon to pivot about two parallel hinge axes (X), each pivot carrying a respective wing, the vehicle including a first oscillation generator for causing the pivots to oscillate in order to cause the wings to flap, said first oscillation generator comprising: two arms ( | 12-09-2010 |
20100308160 | Air Vehicle Flight Mechanism and Control Method - Heavier-than-air, aircraft having flapping wings, e.g., ornithopters, where angular orientation control is effected by variable differential sweep angles of deflection of the flappable wings in the course of sweep angles of travel and/or the control of variable wing membrane tension. | 12-09-2010 |
20110121129 | Muscle-powered aircraft with flapping wings - The invention relates to a muscle-powered ornithopter comprising a fuselage, a pair of flapping wings which have an alterable profile or a rudder in an outer wing region located at a distance from the fuselage, said alterable profile or rudder allowing the uplift to be modified in a predefined flow, and an elevator unit in which the deflection of the elevator can be modified. The pair of flapping wings and the fuselage are made of an elastic material, the elasticity of which allows the pair of flapping wings to be flapped. The flapping wings are curved downward in a resting position. The elasticity is calculated such that the flapping wings are urged into a neutral position during a flight because of the pilot's weight. The fuselage is designed to accommodate the pilot in an upright position relative to a longitudinal axis of the fuselage such that the pilot can apply stress to and relieve stress from the aircraft in phases by stretching and bending his or her legs. The ornithopter further comprises mechanisms which allow the alterable outer wing regions and the modifiable deflection of the elevator to be actuated in phase with the movement of the flapping wings. | 05-26-2011 |
20110278391 | DRAGONFLY UNMANNED AERIAL VEHICLE - A micro aerial vehicle apparatus capable of flying in different flight modes is disclosed. The apparatus includes a fuselage; at least one pair of blade-wings; and an actuator for actuating the blade-wings by flapping the blade-wings in dissonance or resonance frequencies. | 11-17-2011 |
20130168493 | Air Vehicle Flight Mechanism and Control Method - Heavier-than-air, aircraft having flapping wings, e.g., ornithopters, where angular orientation control is effected by variable differential sweep angles of deflection of the flappable wings in the course of sweep angles of travel and/or the control of variable wing membrane tension. | 07-04-2013 |
20130320133 | HOVERING AND GLIDING MULTI-WING FLAPPING MICRO AERIAL VEHICLE - Multi-wing hovering and gliding flapping Micro Air Vehicles (“MAV”) are disclosed. The MAV can have independent wing control to provide enhance energy efficiency and high maneuverability. Power to each wing can be controlled separately by varying the amplitude of the wing flapping, the frequency of the wing flapping, or both. The flapping frequency can be controlled such that it is at or near the natural frequency of the wings for improved energy efficiency. The wings can be controlled by a gear train, coil-magnet arrangement or many other actuation systems that enable variable frequency flapping, variable amplitude flapping, or a combination of both. The gear train mechanism provides gyroscopic stability during flight. The wing flapping can include a rotation, or feathering motion, for improved efficiency. The wings can be transitioned between flapping flight and fixed wing flight to enable gliding and hovering in a single configuration. | 12-05-2013 |
20150008279 | Air Vehicle Flight Mechanism and Control Method - Heavier-than-air, aircraft having flapping wings, e.g., ornithopters, where angular orientation control is effected by variable differential sweep angles of deflection of the flappable wings in the course of sweep angles of travel and/or the control of variable wing membrane tension. | 01-08-2015 |
20150307191 | FLAPPING WING AERIAL VEHICLES - An autonomous flapping wing aerial vehicle can have a vehicle body, a pair of flapping wings, tunable wing hinges, and elastic drive mechanisms. The tunable wing hinges can be coupled to the flapping wings. Each wing hinge can be constructed to deliver a force to a respective one of the flapping wings to alter end points of a stroke thereof. The elastic drive mechanisms can rotate the flapping wings about pivot points to produce the strokes of the flapping wings. The elastic drive mechanism can be driven at or near a resonance thereof. Alterations to the strokes of the flapping wings produced by the combined effect of the tunable wing hinges and the elastic drive mechanisms, operating in parallel, can provide steering control of the aerial vehicle. | 10-29-2015 |
20160068263 | FLAPPING WING DEVICE - A flapping wing device may include a main body and several wings hingedly coupled to the main body. The wings may be configured to reciprocate or “flap” relative to the main body to provide lift for the flapping wing device. A motor and trans mission, such as a crankshaft, are used to drive the reciprocating motion of the wings. The wings reciprocate from a first position that is substantially vertically parallel to the main body of the device to a second position in which a second end, opposite the hinged end, extends away from the main body. The motion of the reciprocating wings may be reminiscent of the motion of a jellyfish. In some instances, a first set of opposing or alternating wings may be reciprocated at an offset period relative to a second set of opposing or alternating wings, such as a quarter period offset. | 03-10-2016 |
20160159477 | RESONANCE MOTOR DIRECT DRIVE FLAPPING WING MICRO AIR VEHICLE SYSTEM - Presented herein are an actuation system and a flapping wing micro aerial vehicle system. In one embodiment, for energy efficiency and to achieve a resonant system, the flapping wing is directly driven using conventional DC motors coupled with torsion springs. Using a transmission gear, the motor is designed to operating at an efficient speed, but generates an overall reciprocal motion to the wing. Closed loop control is applied to achieve tracking of the desired wing motion kinematics, the frequency of which is tuned to match the resonant frequency of the system. We also show that wing kinematic control can be achieved by tracking trajectories with different amplitude and bias, therefore creating flight control forces and torques. | 06-09-2016 |