Special aircraft using a novel integrated lift, propulsion and steering system
OwnerPaul Bastideinventor
Life of this patent
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Abstract
An aircraft having a body on which is mounted an integrated lift, propulsion and steeing system inclusive of cycloidal propellers having horizontal axes of rotation capable of developing net thrust forces at any given angle in a vertical plane. Each propeller is externally driven and is formed with a circular array of blades at the periphery of a common rim and the blades can be turned to vary the angle of thrust by operation of a common control head.
Claims10
An aircraft comprising a fuselage body constructed and arranged for propulsion in air, said body being substantially symmetrical and having vertical and horizontal longitudinal planes, and an integrated lift, propulsion and steering system including four cycloidal propellers grouped in pairs on said fuselage body, one pair at the front and one pair at the rear of the body, each cycloidal propeller having a horizontal axis of rotation and comprising a flat ring having a horizontal axis, a circular array of identical horizontal blades, each free to turn about an axis perpendicular to said ring, said blades being supported from said ring at the periphery thereof, connectingrods extending parallel to the plane of said ring and coupled to the blades for turning the same to vary the angle of net thrust produced by the blades, and a common control head coupled to said connecting rods to operate the same and which may be eccentrically adjusted with respect to the axis of rotation of said propeller to vary the angle of thrust produced by said propeller within a vertical plane, said two pairs of cycloidal propellers being symmetrical with respect to the center of symmetry of the aircraft, the front pair being below the horizontal plane of symmetry, the rear pair above said plane, the two propellers of the same pair being co-axial and symmetrical with respect to the longitudinal vertical plane of symmetry, the propellers all rotating in the same direction, a system of four auxiliary screws having blades which are free to turn and reversible, with an axis perpendicular to the longitudinal vertical plane of symmetry, said fuselage body including four flat parts, two on the longitudinal horizontal axis of symmetry at the front and at the rear and two on the transverse vertical axis of symmetry, at the top and bottom of the aircraft, stream-lined cross members mounted in said flat parts and suspending the screws therein, the two front and rear screws and the flat parts associated therewith being supported for rotation through 90.degree. about a horizontal longitudinal axis to make the thrusts of the two corresponding screws vertical for take-off and landing operations.
An aircraft comprising a fuselage body constructed and arranged for propulsion in air, said body being substantially symmetrical and having vertical and horizontal longitudinal planes, and an integrated lift, propulsion and steering system including four cycloidal propellers grouped in pair on said fuselage body, one pair at the front and one pair at the rear of the body, each cycloidal propeller having a horizontal axis of rotation and comprising a flat ring having a horizontal axis, a circular array of identical horizontal blades, each free to turn about an axis perpendicular to said ring, said blades being supported from said ring at the periphery thereof, connectingrods extending parallel to the plane of said ring and coupled to the blades for turning the same to vary the angle of net thrust produced by the blades, a common control head coupled to said connecting rods to operate the same and which may be eccentrically adjusted with respect to the axis of rotation of said propeller to vary the angle of thrust produced by said propeller within a vertical plane, and a hollow drive shaft for driving each propeller, said control head including means for swivelling the connecting-rods of the propeller, comprising a control lever passing inside said hollow shaft, a central swivel joint for said control lever which is stationary, two movable swivel joints at the end of the lever and two stationary hydraulic cylinders disposed at 90.degree. with respect to each other coupled to the inner of the movable swivel joints.
Dependencies are inferred from the claim text.