An energy harnessing device for harnessing wave energy that results in pitch, sway, yaw, surge, roll, and heave movement, wherein the device effectively converts multiaxial translational and rotational motion to unidirectional rotational motion for power transmission.

For the transmission of endless rotation from stationary frame to endlessly rotating carrier, or vice versa, independently of the rotation of the carrier, an efficient mechanical mechanism is missing.

A Compound Planetary Mechanism, named “Eleuthero-Strophe”, is proposed, with the already existing central carrier, two suns, an eccentric planetary carrier on which an eccentric satellite shaft rests bearing satellites, and planets which cooperate with the suns and the satellites, where all gear teeth numbers meet an Independence Condition. Main applications: horizontal axis wind turbine, where endless rotation of propeller shaft is transmitted to stationary tower, excavator or battle tank, where endless rotation is transmitted from chassis to turret, holonomic vehicle, where endless rotation is transmitted from chassis to drive wheel, propeller-driven aircraft, helicopter, propeller-driven craft, or wind turbine, where propeller pitch adjustment is achieved,
independently of endless rotation of the nacelle, the turret, the steering bracket, and the propeller hub, respectively.

An axial impeller has a tubular housing mounted on bearings for rotation. The housing is capable of engaging a motor or generator directly or through a drive belt. Interior turbine blades are mounted on the housing wall. The blades may be hinged so they can rotate between a retracted position adjacent to the wall and an extended radial position. Rods penetrate the wall to position the blades between retracted and extended positions. When extended, the blades may be rotated to propel a fluid through the housing; and when retracted natural fluid flow is less restricted.

A gearbox repair assembly is disclosed herein. The gearbox repair assembly includes a sleeve having an inner diameter configured to receive a bearing assembly and an outer diameter configured to fit within a bore of a gearbox housing. The gearbox housing can be part of a gearbox of a wind turbine. The gearbox repair assembly further includes a retaining plate configured to be attached to the gearbox housing for preventing an outer race of the bearing assembly from rotating in the bore relative to the gearbox housing. Also provided are methods to repair such a gearbox. The gearbox repair assembly and related methods reduce the time and cost needed to repair the gearboxes.

A system and method for adding oil to the gearbox of a water pump windmill includes a tubular head lift rod in the gearbox attached to a tubular tower lift rod. Pressurized oil introduced into the tower lift rod flows through an interior passageway in the tower lift rod, to an interior passageway in the head lift rod, and out an oil dispersion aperture in the head lift rod and into the gearbox. The system allows a user to add oil to a windmill gearbox located at the top of a windmill tower from ground level by propelling the oil through the tower lift rod and head lift rod. Also disclosed is an accompanying method.

An integrated repair system for servicing a component within the nacelle of the wind turbine uptower. The repair system includes at least one mounting location integrally formed into a bedplate support frame of the wind turbine and a frame assembly coupled to the bedplate support frame. The frame assembly supports at least one clamp element and at least one jack element. When the gearbox is moved in the nacelle during repair procedures, the repair system supports the main shaft uptower such that the rotor remains installed onto the rotor shaft.

A wind power generator is provided with a drive unit, a clutch hydraulic source, and a clutch control portion. The drive unit has a hydraulic clutch mechanism configured to perform switching between transmission and non-transmission of rotary power from an output shaft to a pinion. The clutch hydraulic source supplies a hydraulic pressure to the clutch mechanism. The clutch control portion controls a hydraulic pressure supplied from the clutch hydraulic source to the clutch mechanism.

The present disclosure is directed to a gearbox assembly for a wind turbine. The gearbox assembly has a maximal installed width and a maximal transport width. The maximal installed width is greater than the maximal transport width. The gearbox assembly includes at least one torque arm coupled to opposing sides of the gearbox housing. Each of the torque arms includes a proximal end and a distal end. The proximal ends are removably coupled to the exterior surface of the gearbox such that the distance between the distal ends define the maximal installed width. The torque arms are coupled to at least one support element and to a bedplate of the wind turbine.

A rotation driving mechanism for windmill (1) includes an annular track part (2), a rotation driving part (11), and a plurality of swinging parts (15). The annular track part (2) is disposed on one of a base-side structure and a rotation-side structure, and has a track wall part (3) and first teeth (7). The rotation driving part (11) is fixed on the other of the base-side structure and the rotation-side structure. Each swinging part (15) has a swinging part body (16a) and second teeth (16b). When a rotating shaft (13) of the rotation driving part (11) is rotated so that the swinging parts (15) are swung with maintaining a predetermined phase difference thereamong, the swinging parts (15) are relatively moved with respect to the annular track part (2).

The present invention provides a system and method for converting wave energy into electric energy in an intelligent, practical, and efficient manner. The system utilizes a power input shaft coupled with a vertically reciprocating buoy to rotate a crank gear and a ratchet gear meshing therewith. An intelligent control system is included to monitor, control, and optimize the operations of the system. The length of the power input shaft is adjusted in response to water level fluctuations so that the rotational motion of the crank gear is intelligently controlled within a predetermined desirable region for maximum efficiency.