A power generation apparatus comprises a rotor rotatably mounted to a support and a plurality of vanes extending radially out from the rotor and positioned to be engaged by a moving fluid stream. Each vane includes a wing-shaped main blade having leading and trailing edges, and a co-extensive conditioner blade having leading and trailing edges. The conditioner blade is spaced parallel to the main blade so as to define therebetween a slot having an entrance and an exit. A lift-varying device boarders the slot to vary the lift produced by that vane inversely to the speed of the moving fluid stream so that the rotor turns at a relatively constant rate. The rotor, driven by wind or water, may be coupled to the armature of an induction motor/generator to produce electric power.

A Magnus rotor is provided. The Magnus rotor is located in a flowing fluid and driven to rotate by a power source. The Magnus rotor includes a Magnus rotor main body and a blade assembly. The Magnus rotor main body includes a cylinder side wall, a first end and a second end. The first end and the second end are disposed in one end and the other end of the cylinder side wall, respectively. The Magnus rotor is rotated around an axis connected between a first center point of the first end and a second center point of the second end. The blade assembly includes a plurality of blades which are disposed around the first end. Each blade is inclined toward a direction. A gap is formed between each two adjacent blades. Each gap is formed as a flowing channel for allowing the fluid to flow therethrough.

The invention relates to a device, having at least one rotor, which has an axis of symmetry with respect to which the rotor is rotationally symmetrical and which is rotationally motor-driven about the axis of symmetry of the rotor and which is mounted for rotation about an axis of rotation arranged transverse to the axis of symmetry such that, in the event of incident flow of a fluid, the rotor is rotationally driven in a rotational motion about the axis of rotation by means of a force acting transversely to the fluid flow. Said device enables the production of a rotational motion when the rotor is translationally driven in the fluid relative to the fluid in the longitudinal direction of the axis of rotation.

A vertical axis fluid energy conversion device is provided. The vertical axis fluid energy conversion device includes at least one lift blade and at least one Magnus rotor. A power source drives the Magnus rotor to rotate and the Magnus lift force is produced. The Magnus rotor is connected with a main shaft through a connection component. Consequently, the main shaft is rotated and the lift blade is also revolved. The flow field of the vertical axis fluid energy conversion device is less influenced by the Magnus rotor. The performance of the lift blade is better. The whole efficiency is enhanced. The vertical axis fluid energy conversion device is self-starting through the Magnus rotor. The power source only drives the Magnus rotor to rotate, but not drive the whole device. Therefore, the vertical axis fluid energy conversion device has advantages of low cost and low energy consumption.

A Magnus rotor is provided. The Magnus rotor is located in a flowing fluid and driven to rotate by a power source. The Magnus rotor includes a Magnus rotor main body and a blade assembly. The Magnus rotor main body includes a cylinder side wall, a first end and a second end. The first end and the second end are disposed in one end and the other end of the cylinder side wall, respectively. The Magnus rotor is rotated around an axis connected between a first center point of the first end and a second center point of the second end. The blade assembly includes a plurality of blades which are disposed around the first end. Each blade is inclined toward a direction. A gap is formed between each two adjacent blades. Each gap is formed as a flowing channel for allowing the fluid to flow therethrough.

A thrust generating device has a simple structure and can effectively control the magnitude of a Magnus force generated at a cylindrical blade in accordance with the direction of a flow acting on the cylindrical blade. A Magnus-type thrust generating device includes a first member that has a first rotational axis and that can rotate about the first rotational axis; and a second member that is disposed at a rear surface side in an advancement direction of the first member 1. (M?L)/L<2 is satisfied, where L is the distance from the first rotational axis to the most distant part of the surface of the first member and M is the distance from the first rotational axis to the closest part of the surface of the second member in a plane perpendicular to the first rotational axis of the Magnus-type thrust generating device.

An energy generating device for generating energy from a flowing fluid, especially from a wind flow and/or from a water flow, comprises: a rotation body, the rotation body extending along an axis of rotation between a first point and a second point and the rotation body being adapted to rotate about the axis of rotation and the rotation body being formed from at least a first, a second, and a third rotation segment, wherein the rotation segments are joined together and arranged along the axis of rotation, and they form a region at least partly surrounded by fluid, wherein the second rotation segment is situated between the first and the third rotation segment and has a different diameter than the first and third rotation segment; and a generator device mechanically connected to the rotation body, wherein the generator device is adapted to generate energy which is produced from the rotation of the rotation body.

A remote control system for an aircraft includes an aircraft of the Magnus-effect type. The aircraft includes a cylinder extending along a longitudinal axis. The cylinder is able to rotate about the longitudinal axis. A pair of rotatable are arranged at a distance from the aircraft. A drive means is designed to drive a rotational movement of the pair of rotatable elements. A connection cable is arranged to connect the pair of rotatable elements to the cylinder of the aircraft in such a way that the rotational movement of the pair of rotatable elements, driven by the drive means, is mechanically transmitted to the cylinder of the aircraft so as to cause the cylinder to rotate about the longitudinal axis.

A Flettner rotor that employs localized suction over its surface improves performance and fuel efficiency. Simulations and analysis show that such a method can significantly improve the performance of the Flettner rotor. Improvements in rotor performance enable reduction in fuel costs and greenhouse gas emission by ships or other modes of transport. Improvements in rotor performance can also reduce noise for applications such as drones or other devices having rotors.

A thrust generating device has a simple structure and can effectively control the magnitude of a Magnus force generated at a cylindrical blade in accordance with the direction of a flow acting on the cylindrical blade. A Magnus-type thrust generating device includes a first member that has a first rotational axis and that can rotate about the first rotational axis; and a second member that is disposed at a rear surface side in an advancement direction of the first member 1. (M?L)/L<2 is satisfied, where L is the distance from the first rotational axis to the most distant part of the surface of the first member and M is the distance from the first rotational axis to the closest part of the surface of the second member in a plane perpendicular to the first rotational axis of the Magnus-type thrust generating device.