The wind power generation device includes a blade, a power distribution unit, a first generator, a second generator, a clutch unit, and a control unit. The control unit controls connection and disconnection of the clutch unit such that the clutch unit is disconnected when the wind speed input to the blade is smaller than a predetermined first wind speed value and the clutch unit is connected when the wind speed input to the blade is larger than a predetermined second wind speed value.

A wind turbine power generating system, including a wind turbine connected to a speed-increasing gearbox having an output shaft. An electrical generator having an input shaft is also provided. A coupling interconnects the input and output shafts. The coupling includes a high torsional wind-up and/or displacement ability in parallel with a high frictional slip ability, such that during normal operation there is little or no frictional slippage and during a transient torque reversal the loads in the turbine drive system are decreased, thus decreasing the impact loads on the gearbox bearings.

A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects a loss of traction of the slip coupling between a generator and a rotor of the drivetrain of the wind turbine. In response to detecting the loss of traction, the controller overrides a generator torque setpoint to alter a rotational speed of the generator. In response to the altered rotational speed of the generator, the traction of the slip coupling is increased. Increasing the traction of the slip coupling facilitates an application of generator torque to the drivetrain of the wind turbine.

A wind power generation method capable of efficiently generating electricity while preventing a rotor from stalling. A generator (3) is connected to a vertical main shaft (5) of a rotor (2) via a clutch (9). The method comprising repeating the following steps: disconnecting the clutch when the rotor is rotating at or below a predetermined average wind speed, to idle the rotor, connecting the clutch for generating power by the generator when the rotor reaches a specific peripheral speed or rotational speed, again disconnecting the clutch when the rotor is rotating at or below the predetermined average wind speed to idle the rotor until the specific value of peripheral speed or rotational speed is reached, and again connecting the clutch for generating power by the generator once the rotor reaches the specific value.

A machine assembly includes a first machine component and a second machine component, the first machine component including a first installation surface and the second machine component including a second installation surface. The first and second installation surfaces are mounted against one another in the assembly. A friction-increasing element is provided in the assembly between the first installation surface and the second installation surface. Further, in the assembled state, a sealing material is introduced into an intermediate space between the first and second installation surfaces.

A system and method for producing clean, sustainable, and accessible energy with air, sand, and water (ASW) as power source a soyos environment clean engine (SECE) having a clean stroke maker system (CSM) mounted on a solid upraise structure (SUS), to produce continuous mechanical energy for inner work and input to a plurality of rotary table systems (RTS), transforming to rotational energy for more power and coupled to the clean energy collector (CEC) with a plurality of retract clutch system (RCS). The clean energy collector (CEC) is connected to a customized Torque-Speed builder (CTS) for stable power, generating continuous clean, sustainable, and available energy for various carbon-zero emissions activities. A plurality of internal control using air, sand, and water (ASW) interconnected and interacted with the air force, gravity force and water force creating compressed air energy, hydro energy, mechanical energy for internal exchange and clean power delivery.

A combined pump and turbine (electromechanical converter), which may be operable as a motorized centrifugal pump for starting a siphon and as an electromechanical turbine particularly for transmission of a liquid, such as water, in a water treatment plant.

Provided is a drive train of a wind turbine. The drive train includes a torque limiter assembly including a torque limiter. The torque limiter includes: a first clamping disk, a friction disk, a second clamping disk, and a preloading means. The clamping disks and the friction disk are configured such that the clamping disks frictionally transmit a torque to the friction disk. The torque limiter assembly further includes a torque shaft and a hub shaft. The torque shaft is connected to a rotor of the wind turbine, and the hub shaft is connected to a generator rotor of a generator. The friction disk is bolted to the hub shaft via interface bolts from a downwind side, such that the torque limiter is detachable from the hub shaft as a whole. Further provided is a wind turbine.

Disclosed herein are a clutch and a compressor including the same. The clutch includes a hub fastened to a rotary shaft of the compressor to be rotatable together with the rotary shaft in a state in which a position of the hub is fixed, a disk fastened to the hub to be rotatable together therewith, a pulley rotated by power transmitted from a drive source of the compressor, an elastic member for fastening the hub and the disk such that the disk is movable toward or away from the pulley with respect to the hub, a field coil assembly magnetized when electric power is applied thereto to allow the disk and the pulley to come into contact with or separate from each other, and an attenuation member interposed between the elastic member and the disk. Accordingly, it is possible to reduce noise and vibration due to contact and separation between the disk and the pulley by the elastic member and the attenuation member.

A system for accelerating turbine rotation characterised in that on the upper end of an elongated rotor shaft there is an irreversible transmission (3) installed, with which there is connected a gearmotor (4) with an electric motor connected by a unidirectional clutch (6) with a pneumatic motor (7) which, in turn, is coupled with a magnetic motor (8).