Rotor construction for windmill
OwnerPieter A. J. Eikelenboominventor
Life of this patent
Estimating the term…
Abstract
A device for converting wind flow energy into mechanical energy has a base construction and a rotor with an essentially horizontal axis mounted on the base construction. The rotor has a number of elongated rotor blades which are connected to a rotary support and extend essentially radially therefrom. Each rotor blade or a part thereof is connected to the rotor support by a hinge connection for tilting the longitudinal axis of the rotor blade or part thereof to a predetermined orientation relative to the axis of rotation of the support. A hinge axis of the hinge connection between the rotor blade and the rotary support is directed at an acute angle both to the longitudinal axis of the rotor blade and to the axis of rotation of the support.
Claims17
A device for converting wind flow energy into mechanical energy, said device comprising a base construction and a rotor, said rotor being mounted on the base construction and comprising an essentially horizontal axis, a number of elongated rotor blades, and a rotor support comprising at least one annular tube, said rotor blades being connected to said rotor support and extending essentially radially therefrom, a portion of each rotor blade being connected to the rotor support by a hinge connection for tilting the longitudinal axis of the rotor blade to a predetermined orientation relative to the axis of rotation of the rotor support, wherein a hinge axis of the hinge connection between the rotor blade and the rotor support is directed at an acute angle both to the longitudinal axis of the rotor blade and to the axis of rotation of the support.
A device for converting wind flow energy into mechanical energy, said device comprising a base construction and a rotor mounted on said base construction, said rotor comprising a rotor support and a number of rotor blades attached to said rotor support by a hinge connection and extending essentially radially from said rotor support, each said rotor blade comprising at least one flexible casing, said device further comprising means for selectively supplying a fluid to said flexible casings whereby said casings assume the shape of a rotor blade portion, and for discharging the fluid from said flexible casings whereby said casings lose the shape of the rotor blade portion.
Dependencies are inferred from the claim text.