摘要:
The group of inventions relates to aviation and wind energy, and specifically to designs of aircraft rotors and cruise propellers. An "Air Wheel" rotor, having blades with variable pitch and variable torsion, contains a closed wing which is connected to one or a plurality of coaxial bushings by means of torsionally-flexible blades, wherein the connection between the blades and the closed wing may be rigid, elastic or viscoelastic. A movable mounting of blades to the one or plurality of bushings is carried out by means of a torsion element, or by means of an axial hinge or by means of an offset axial hinge. The rotor contains a device for controlling the overall/cyclical pitch of the blades, which are set partially or fully by the relative positions (pan, tilt, shift) of the bushings. The blades may have a complex three-dimensional shape. The profile of the torsionally flexible blades may have a variable concavity. A variable torsional rigidity along a blade and/or a transverse bend allow for a hyperbolic blade rotation which maximally approximates the ideal blade rotation. The "air wheel" rotor has a wide range of applications. Design constraints for increasing flight speed are reduced. The efficiency, strength and durability of variable-pitch propellers are increased, losses and noise are decreased, and vibration is eliminated.
摘要:
A power generation apparatus and method comprises at least one gyroglider rotary wing flying at an altitude above the nap of the earth. A strong and flexible tether, connected to the gyroglider frame is pulled with a force generated by the rotary wing. The force is transmitted to a ground station that converts the comparatively linear motion of the tether being pulled upward with a lifting force. The linear motion is transferred to a rotary motion at the ground station to rotate an electrical generator. The tether is retrieved and re-coiled about a drum by controlling the gyroglider to fly down at a speed and lift force that permit recovery of the gyroglider at a substantially reduced amount of retrieval force compared to the lifting force during payout of the tether. Thus, the net difference in force results in a net gain of energy.
摘要:
The invention relates to an aircraft having a pusher propeller (18), a rear tail assembly (20) and a connection (22) by means of which the tail assembly (20) is fastened. According to the invention, the connection (22) comprises a sound-absorbing structure (24).
摘要:
A power generation apparatus and method comprises at least one gyroglider rotary wing flying at an altitude above the nap of the earth. A strong and flexible tether, connected to the gyroglider frame is pulled with a force generated by the rotary wing. The force is transmitted to a ground station that converts the comparatively linear motion of the tether being pulled upward with a lifting force. The linear motion is transferred to a rotary motion at the ground station to rotate an electrical generator. The tether is retrieved and re-coiled about a drum by controlling the gyroglider to fly down at a speed and lift force that permit recovery of the gyroglider at a substantially reduced amount of retrieval force compared to the lifting force during payout of the tether. Thus, the net difference in force results in a net gain of energy.
摘要:
Off-board gyrocopter take-off systems and associated methods are disclosed. A representative method includes restraining a gyrocopter from vertical and lateral movement, pre-rotating a fixed-pitch lift rotor of the gyrocopter via a power source located off the gyrocopter, and releasing the gyrocopter for vertical movement to allow the gyrocopter to lift under a force provided by the lift rotor. Optionally, the method can further include interrupting or reducing power from the power source to the gyrocopter as a way to release the gyrocopter for vertical movement.
摘要:
The present invention discloses a vehicle (1) capable of being converted between a flying condition and an automotive riding condition. The vehicle has a telescopically extendable tail (10) comprising a first tubular tail segment (11) and a second tail segment (12) disposed axially slideable within the first tubular tail segment. The tail is provided with at least two form-closing coupling members (21, 35; 31, 36) located at an axial distance (LI) from each other for providing a force-transferring coupling between the second tail segment (12) and the first tubular tail segment (11) in the extended state of the second tail segment (12), each of said form-closing coupling members (21, 35; 31, 36) capable of transferring torque and transverse forces, and each of said form-closing coupling members (21, 35; 31, 36) coming into engagement by axial displacement of the second tail segment (12) in the outward direction.
摘要:
L'invention concerne un aéronef motorisé léger (1), comportant: -une dérive (304) ; -un poste de pilotage apte à recevoir des premier et deuxième sièges disposés côte à côte; -un palonnier de commande (201) de la dérive (304), le palonnier comportant des première à quatrième pédales (281, 282, 283, 284), les première et troisième pédales induisant une commande sur la dérive opposée à la commande des deuxième et quatrième pédales, les première et deuxième pédales étant en vis-à-vis du premier siège et les troisième et quatrième pédales étant en vis-à-vis du deuxième siège. Le poste de pilotage est apte à recevoir un unique siège disposé au niveau du plan médian de l'aéronef en remplacement des premier et deuxième sièges et disposé en vis-à-vis des deuxième et troisième pédales ; L'aéronef comporte un dispositif permettant d'inverser les commandes appliquées sur la dérive (304) par les deuxième et troisième pédales.
摘要:
L'invention concerne tout aéronef à sustentation par voilure tournante et empennage auxiliaire. Selon l'invention, l'aéronef est muni de moyens permettant de donner au moment de son décollage, à au moins une partie de l'empennage, une position inclinée par rapport à la position de vol. Application notamment aux autogires.
摘要:
A three stage watercraft for operation in the water as a traditional boat at low speeds in stage one, for operation on the water's surface at mid-range speeds at stage two, and for traveling in ground effect at higher range speeds is disclosed. The three stage craft includes a hydro-wing 12, either at least a single hydrofoil 13 or gyration rotor 14 to aid with lift from stage one to stage two, and a pair of outboard floats or hydro-floats 16a, 16b supported by the hydro-wing 12, which are also designed to aid with lift from stage one to stage two.