A gravity, leverage, fluid or liquid driven multiple side by side cylinder high or low head turbine, each side by side cylinders comprises 1, an output center shaft with attached drive gears, 2, length of a lever with a fulcrum along its length, container at one end of said lever and cable attached at opposite end of said lever on one side of said fulcrum, one side by side cylinder with container in of lever in the up position and said cable end of lever in the down position, other side by side cylinder has its container end in the down position with its cable end in the up position, cable over pulleys one end of said cable attached to of side by side cylinder's said container end lever for one dropping water in container end of lever to pull up its side by side cylinder's empty container end of lever, body of said attached to cable end of said levers is around down positioned pulley with opposite in of said cable attached to a rack gear, said rack gear's teeth mashed with the teeth of a pinion gear, said pinion gear is attached to a set of blocks, said set of blocks and attached pinion gear rotate around a section of said center shaft and at least one of its attached drive gears, mounted to said set of blocks is a said section of center shaft's attached drive gear's motor or spring driven drive wedge, volumes of water dropped into number of cylinder's containers on levers in the up position dropping at the acceleration of gravity generating torque through cable end of lever, said cable, rack gear, pinion gear, section of center shafts drive gear, center shaft and its drive gears to the input shaft attached gear of a device or mechanism, said input shafts attached gear diameter maybe equal to or less than the diameter of said center shaft attached drive gear who teeth are mashed with said input shaft attached gear.

A device and method of acquiring mechanical energy by using a wind power generator employing sails is described. A sail is mounted on a towing carriage that is used for the rotation of a propulsion wheel of the mechanical gear is added. The towing carriage is connected to a strand and the strand transfers the force originated by the sail to the propulsion wheel of the power plant. The sail has the ability of adjustment of its angle position to the direction of the wind, the total exploitation cycle of the wind power generator employing sails consists of the working part during which the sail is moving along the direction of wind.

Disclosed are a wave power generation system for generating power by means of a hydraulic circuit, and a method for controlling same. The wave power generation system comprises: a tension transmission member for transmitting motion energy which is generated by means of six-degrees-of-freedom motion of a movable object floating on the waves; a power conversion unit comprising a fluid pressure generation unit which is connected to the tension transmission member and is for generating a fluid pressure; and an equalizer connected to the tension transmission member and for maintaining the tension of the tension transmission member. In the power conversion unit, if tension is applied from the tension transmission member, the fluid pressure generation unit enables a fluid to flow in a first direction by means of the tension and, if tension is not applied from the tension transmission member, the fluid pressure generation unit enables a fluid to flow in a second direction by means of the equalizer.

Provided is a pitch apparatus of a wind turbine. The wind turbine includes a wheel hub and multiple blades. The pitch apparatus includes a pitch bearing, a transmission element and a driving mechanism for driving the transmission element. The pitch bearing includes a bearing inner race and a bearing outer race. The bearing inner race is fixedly connected to the blade; the bearing outer race is fixedly connected to the wheel hub. The transmission element is driven by the driving mechanism, and drives the blade and the bearing inner race to rotate relative to the wheel hub. A load level of ultimate bending moment for a blade root and a safety factor of the pitch apparatus increase, failure risks of the pitch bearing, bolts and the transmission belt are reduced. A wind turbine having pitch apparatus is provided.

An example damp can include a first post, a first clamping element rotatably oupled to the first post, a second post separate from the first post, a second clamping lement rotatably coupled to the second post, and a biasing device that couples the first lamping element to the second damping element.

In a rotating machine having a fluidic rotor, the rotor comprises at least one blade mounted on an arm rotating about a rotor shaft forming a main axis of the rotor, the rotor being kept by a supporting structure in an orientation such that said axis is substantially perpendicular to the direction of flow of the fluid, the blade being mounted so as to pivot about an axis of rotation of the blade parallel to the main axis. The machine comprises means for generating a relative oscillation movement of the blade with respect to the arm at the axis of rotation of the blade, in order in this way to vary the inclination of the blade during the rotation of the rotor. Said means comprise, at the arm end, a mechanism comprising a first rotating element (A; B) known as the drive element and a second rotating element (B; A) known as the driven element, the elements being mounted on mutually parallel axes of rotation and separated by an inter-axis distance, the orientation of the drive element being controlled depending on the orientation of the rotor shaft while the orientation of the driven element determines the orientation of the blade, one of the rotating elements comprising a finger (D) spaced apart from its axis of rotation and the other rotating element comprising a groove (C) which receives the finger and in which the finger can slide. Application notably to wind turbines, to marine turbines and to nautical and aircraft propellers.

Substantially horizontal axis water turbine assemblies for generating electrical power in areas having poor sources of water flow including rotors mounted within housings in such a manner so as to minimize water resistance to the rotor blades with rotor blades passing through upper rotor return air spaces created within the housings and wherein the turbine assemblies may be mounted within support structures that both channel water flow to the turbine assemblies and facilitate access to the components thereof.

A adjustment unit for an azimuth adjustment and/or for a pitch adjustment of a wind turbine, to an adjustment apparatus, to a pitch adjustment apparatus, to an azimuth adjustment apparatus, to a wind turbine, and to methods for the rotor blade adjustment and wind direction tracking, and to the use of an adjustment unit and/or adjustment apparatus. The adjustment unit for an azimuth adjustment and/or for a pitch adjustment of a wind turbine comprises a drive unit which can be arranged on a first annular flange and has an eccentric shaft, a first engagement element which can be arranged on a circumference of a second annular flange which is arranged such that it can be rotated with respect to the first annular flange, a multiplicity of concavely and convexly configured first cam sections being arranged on a circumferential face of the first engagement element, and a second engagement element, with concave and convex second cam sections which are arranged on a circumferential face and correspond to the first cam sections.

An example damp can include a first post, a first clamping element rotatably coupled to the first post, a second post separate from the first post, a second clamping element rotatably coupled to the second post, and a biasing device that couples the first lamping element to the second damping element.

Device for conversion of wave energy into electrical energy and the process for its deployment at the exploitation location, wherein the device comprises a supporting construction composed of buoyancy elements and having a supporting tube attached on the upper side. The device comprises a joint gear on the inner circumference connected with the outside surface of the supporting tube in a sliding manner and a sphere to which is the floating body pivotally connected. The device has two gears, the first flexible gear for connecting the floating body to the second gear and the second gear for connecting the flexible gear to the generator. The flexible gear consists of pulleys and a flexible element, e.g. a rope or a steel cable and the second gear can be arranged in several suitable forms, e.g. rigid elements as a set of a gear and a rack positioned inside the lower supporting tube or a flexible element, e.g. a chain and a sprocket wheel set in the buoyancy element. The supporting construction is by ropes connected to the anchor weight that is made in a form of a sphere segment either directly or through the rolling elements placed in the spherical dent of the anchor base. The invention comprises the process for device deployment at the exploitation location which is particularly suitable due to stable transport with low draught.