Abstract: An internal combustion engine includes a port injector that injects fuel into an intake port and a direct injection injector that injects fuel directly into a combustion chamber. When the internal combustion engine is in a low load condition while requiring fuel injection, a controller stops fuel injection through the port injector so that an entire required fuel injection amount is injected through the direct injection injector. As a result of this processing, the fuel pressure of the direct injection injector is reduced quickly in the low load condition.

Abstract: A method for starting an internal combustion engine with a fuel tank and a low-pressure pump which pumps gasoline out of the fuel tank at a low-pressure to a high-pressure pump that pumps the gasoline at a high-pressure to injectors of the internal combustion engine. An electronic controller is provided for controlling and/or regulating the low-pressure pump, the high-pressure pump, and the injectors. After a start pulse for the internal combustion engine, the method: checks whether a formation of vapor bubbles in the gasoline is possible on the low-pressure side during a hot start. If not possible, then the normal low-pressure is set. If possible, then a low pressure which is high enough that the formation of vapor bubbles is not possible on the low-pressure side is set, and the normal low-pressure is set after a period of time. The problem of vapor bubble formation is prevented in an inexpensive or cost neutral manner via the method.

Abstract: A method and apparatus are disclosed for determining the fuel quantity that is actually injected by a fuel injector in an internal combustion engine. A fuel injector is operated to perform a fuel injection. The first discharge stroke of the fuel pump is deactivated following a start of the fuel injection for preventing the discharge stroke from delivering fuel into the fuel rail. A value of a pressure drop caused into the fuel rail by the fuel injection is calculated. A value of a fuel quantity injected by the fuel injection is calculated on the basis of the calculated value of the pressure drop.

Abstract: A marine engine comprises a cylinder block that defines a cylinder bore; a piston that reciprocates in the cylinder bore under force of combustion in the marine engine; and a liner disposed in the cylinder bore between the piston and the cylinder block. The liner provides a running surface for the piston. The liner has a cylindrical liner body that is sized to fit snugly within the cylinder bore and a pair of diametrically opposing tabs axially extends from liner body into the cylinder bore. Methods of making a marine engine are also disclosed.

Abstract: A system and method for fluidly sealing a cylinder head interface between an engine block and a cylinder head of an internal combustion engine. An example apparatus includes a perimeter seal disposed on an outer periphery of the cylinder head. The perimeter seal has a first surface to abut a cylinder head sealing surface and a second surface to abut an engine block sealing surface. The perimeter seal is configured to prevent fluid from an external environment from entering the cylinder head interface and to allow fluid within the cylinder head interface to vent to the external environment when the fluid is above a predetermined pressure. A first fluid transfer tube seal fluidly seals a first fluid transfer orifice extending between the engine block and the cylinder head. The perimeter seal and the first fluid transfer tube seal are formed as a unitary structure.

Abstract: A piston and an engine including the same are provided. The piston includes an upper surface that is formed at an upper portion; a bowl that is concavely formed at the upper surface; a plurality of protruding portions that are separated by a predetermined distance along an edge of the bowl; and a central portion that is protruded upward at the center of the bowl.

Abstract: A piston has a piston crown and a top land extending circumferentially around the piston crown, as well as a combustion bowl and at least one valve pocket machined therein. The valve pocket has a side wall and a bottom, and wherein the side wall extends at an angle of between 110° and 120° from the bottom. A method for forming such valve pockets in the piston crown includes machining the valve pockets with a rotating cutter having an inverted frustoconical shape such that an angle between a bottom of the cutter and a side wall of the cutter amounts to between 110° and 120°.

Abstract: The system (10) provides a modulator ring (54) secured adjacent an exhaust end (56) of an inner wall of a by-pass fan air duct (40) and secured adjacent a convergent nozzle section (38) of the engine wherein flow of by-pass fan air (42) and core engine air (18) converge within an exhaust nozzle (34), The modulator ring (54) may be actuated to extend beyond the exhaust end (56) of the duct (40) to decrease air passage (62) forcing more air into the core engine (14) for greater thrust from the core engine (14) with minimal loss of thrust from the by-pass fan air (42). The modulator ring (54) stay alternatively rotate to uncover trailing-edge slots in the exhaust end (56) of the duct to also modulate flow rates of by-pass fan air (42) into the convergent nozzle section (38).

Abstract: A gas turbine engine includes a gear assembly, a bypass flow passage, and a core flow passage. The bypass flow passage includes an inlet. A fan is arranged at the inlet of the bypass flow passage. A first shaft and a second shaft are mounted for rotation about an engine central longitudinal axis. A first turbine is coupled with the first shaft such that rotation of the first turbine is configured to drive the fan, through the first shaft and gear assembly, at a lower speed than the first shaft. The fan includes a hub and a row of fan blades that extend from the hub. The row includes 12 (N) of the fan blades, a solidity value (R) that is from 1.0 to 1.2, and a ratio of N/R that is from 10.0 to 12.0.

Abstract: A turbofan engine has a fan portion in fluid communication with a core stream and a bypass stream of air separated by splitters disposed both upstream and downstream of the fan portion. A fluid passage is defined between the splitters. The turbofan engine has a plurality of vortex generators, each of the vortex generators positioned on the leading edge of a respective fan blade proximate the upstream splitter and the core stream restricting the migration of the core stream into the bypass stream through the fluid passage.

Abstract: A control diaphragm for controlling a fuel feed in a diaphragm carburetor of an internal combustion engine, includes a central, substantially flat feeling region, a functional region circumferentially extending around the feeling region in a concentric manner, and a peripheral fastening border for fastening the control diaphragm. The control diaphragm closes off a control chamber of the diaphragm carburetor in a sealing manner in the installed state and is operatively connected by the central feeling region to a controlling lever of the diaphragm carburetor arranged in the control chamber, which controlling lever feels the axial deflection of the feeling region in accordance with an operating-related pressure change in the control chamber.

Abstract: A method for introducing a gaseous fuel into a combustion chamber of an internal combustion engine includes forming a non-ignitable mixture of the gaseous fuel and a gas including oxygen in a predefined mixture mass ratio within a predetermined range of tolerance having a pressure suitable for directly introducing the non-ignitable mixture into the combustion chamber during at least the compression stroke; and introducing the non-ignitable mixture directly into the combustion chamber.

Abstract: After an engine is started, pump monitoring is performed as follows: a canister is opened to the atmosphere; a negative pressure pump is activated; and abnormality of the negative pressure pump is evaluated on the basis of canister pressure Pc detected with a pressure sensor in an evaporative leakage check module, and after the pump monitoring is completed, a switching valve is closed so that the negative pressure pump communicates with the canister for purge any fuel evaporative gas into an intake passage of the engine, and whether or not leakage has occurred in a fuel evaporative gas emission suppressor is evaluated based on the canister pressure Pc.

Abstract: A motorcycle includes a fuel tank, a vehicle body frame, a pair of front forks, and a canister. The fuel tank contains gasoline therein. The vehicle body frame supports the fuel tank. The pair of front forks are placed spaced apart from each other in a vehicle width direction to support a front wheel from both sides in the vehicle width direction such that the front wheel is rotatable, and mounted to the vehicle body frame such that the pair of front forks are rotatable around a head pipe. The canister adsorbs gasoline contained in a gasoline vapor present inside the fuel tank and supplies the gasoline to an engine. The canister is placed inward in the vehicle width direction relative to the pair of front forks when viewed from a front, and in front of an engine when viewed from a side.

Abstract: A fuel heating apparatus includes a fuel filter head having an upper side, a fuel inlet and a fuel outlet. A fuel filter is disposed on the fuel filter head including an unfiltered fuel plenum and a filtered fuel plenum inside the fuel filter. A heating element is disposed inside the filtered fuel plenum inside the fuel filter. One or more temperature sensors are included inside the fuel filter in some embodiments. The heating element and temperature sensor are connected to a thermostat to regulate the temperature inside the fuel filter to prevent gelling of fuel. Additionally, in some embodiments, a heat exchanger is disposed on the fuel line between the fuel tank and the engine. A working thermal fluid passes through the heat exchanger in thermal contact with the fuel. Heat transfer between the working thermal fluid and the fuel preheats the fuel prior to delivery to the engine.

Abstract: A saddle-ridden vehicle includes: an engine and an air cleaner case that are supported to a body frame and respectively arranged in front and rear sides of the vehicle; a rear cushion arranged between the engine and the air cleaner case, the rear cushion being coupled to the body frame; and a connecting tube that extends forward from the air cleaner case and is coupled to the engine. The connecting tube upwardly bypasses an upper end of the rear cushion so as to be curvedly arranged under an occupant seat. The connecting tube defines a breather-gas return chamber between an inner wall and an upper-side outer wall of the connecting tube, the breather-gas return chamber being communicated with an internal space of the air cleaner case and receiving breather gas from the engine, the inner wall being integrated with the upper-side outer wall.

Abstract: A filter element, including: a first filter medium body having an outflow side and an inflow side; a second filter medium body having an outflow side and an inflow side; wherein the filter element has a longitudinal axis; wherein the first and second filter elements are configured both install into and share in common a filter element housing in which the filter medium bodies delimit a shared common clean space from which the purified fluid is to be discharged via at least one outflow opening; wherein the first filter medium body and the second filter medium body have different sizes and/or different shapes and/or different angular positions of the outflow sides adjoining the clean space.

Abstract: An apparatus and a method are provided for an air filter cleaning wand for flushing contaminants from an intake air filter of an automobile engine. The air filter cleaning wand comprises a proximal flange, a conduit, and a distal end portion. The proximal flange is configured to receive a nozzle of a water hose. An interior of the conduit is in fluid communication with the proximal flange. The distal end portion comprises a plurality of longitudinally aligned vents in fluid communication with the interior of the conduit. Upon passing water through the water hose and into the conduit, pressurized water streams exit the vents along the distal end portion so as to flush contaminants from the air filter. The air filter cleaning wand advantageously is comprised of a material which is sufficiently durable and temperature resistant to retain its configuration during operation when coupled to pressurized water sources.

Abstract: A method for controlling a position of a flap of a variable port flap control module (VCM) may include determining whether a vehicle state satisfies a predetermined opening condition of the VCM, determining a VCM opening voltage in consideration of tolerance of the flap of the VCM when the vehicle state satisfies the opening condition of the VCM, and controlling the flap of the VCM to be in an opened state by applying the VCM opening voltage to a motor of the VCM when the opening condition of the VCM is satisfied, during an engine starts.

Abstract: In a structure for mounting resonators to a duct, the duct including openings is provided with a plurality of duct-side mounting pieces, and the resonators formed separately from the duct and including communication ports coupled to the openings are provided with a plurality of resonator-side mounting pieces that are mounted to the duct-side mounting pieces. Coupling portions of the duct and the resonators are configured to ensure turning the resonators when the resonators are mounted to the duct. On the plurality of duct-side mounting pieces disposed with intervals in a peripheral direction of the coupling portions, mounting surfaces are formed to be opposed to turning directions of the resonators when mounting the resonators to the duct, the resonator-side mounting pieces being abutted against and mounted to the mounting surfaces. Accordingly, it is possible to turn the resonators when mounting them to the duct and improve attachment work.

Abstract: A suction head for connection to a fuel hose in a fuel tank has a base member made of an injection molding material. The base member has a peripheral wall surface provided with cutouts and also has an end face opening. A cap closes off the end face opening. A connecting socket for the fuel hose is provided on the suction head. A first filter element is received inside the base member. A second filter element covering the cutouts is provided and is made of a filter fabric, wherein the filter fabric is a twill weave fabric or a satin weave fabric. The filter fabric has a mesh size that is greater than 10 ?m and smaller than 25 ?m. A power tool with a four-stroke engine is provided with such a suction head in the fuel tank.

Abstract: An outer wall surface of an output end portion includes a pair of first plane surfaces which are formed at different positions in its circumferential direction. An inner wall surface of a fitting hole includes a pair of second plane surfaces which are formed at different positions in the circumferential direction. A clearance between one of the pair of first plane surfaces and one of the pair of second plane surfaces is made larger from one side toward the other side in an axial direction in a state that a rotary shaft and an impeller are concentric with each other.

Abstract: A filter assembly for filtering diesel fuel used by a diesel engine includes a housing that defines a housing opening, an unfiltered fuel inlet and a filtered fuel outlet. A panel is matable to the housing for sealably enclosing the opening for forming a housing chamber. A panel encloses the opening and defines an inner surface. A filter element formed from a peripheral wall includes filter media defining an unfiltered side and a filtered side of said filter element. The peripheral wall is sealably affixed to the inner surface enclosing the unfiltered side of the filter element from the housing chamber defining an unfiltered chamber. A permeable barrier is affixed to the peripheral wall defining a filtered chamber with the filtered side of said filter element receiving filtered fuel through the filter media. The housing chamber receives filtered fuel through though the permeable barrier.

Abstract: A fuel injector includes a fuel valve including a valve needle and a valve seat for controlling a flow of fuel through the injector. The fuel injector also includes an electromagnetic actuator with a solenoid and an armature that lifts the valve needle from the valve seat in an opening direction while the solenoid is electrically energized. The fuel injector also includes a housing in which the valve needle and the armature are received such that they are displaceable in reciprocating fashion with respect to the housing and with respect to one another. A spring is arranged between the armature and the housing, for pushing the armature against the valve needle in the opening direction, wherein the spring provides a hysteretic relationship between force and displacement.

Abstract: The present invention includes a bobbin having a winding part around which a coil winding is wound, a terminal extending from the bobbin in the axial direction of the bobbin, and a wrapping part which is provided to the terminal and in which a terminal lead wire pulled out from a coil part that is wound around the winding part is wrapped and fused. The terminal lead wire wired between the bobbin and the wrapping part in a state of being in contact with the surface of the terminal. The peripheries of the bobbin, the wiring part of the terminal lead wire and the wrapping part are covered with resin.

Abstract: The present disclosure relates to internal combustion engines. The teachings thereof may be embodied in injection valves with servo-valve control for injecting fuel into the combustion chamber. For example, an injection valve may include a valve pin connected to a valve body and an actuator preloaded by an actuator spring. The valve pin is fitted with a very small clearance to form a sealing gap between the valve pin and the valve body which includes bores. The lower end of the valve pin forms a coupling volume between the valve pin and the valve body, connected via the sealing gap and the bores to the valve chamber. The sealing gap provides a fluidic connection between the coupling volume and the valve chamber, but, during the short time of valve actuation, practically no exchange of fluid can take place between coupling volume and valve chamber so that the coupling volume does not substantially change in said short time.

Abstract: A measurement device for measuring a flow distribution of a liquid spray stream which has been atomized by a nozzle may comprise: a sensing wire; at least one further sensing wire; an electric power supply; a measurement unit; and a second grid of parallel sensing wires. The sensing wires may be positioned within a spray volume of the liquid spray stream and arranged in parallel with respect to each other to form grids of parallel sensing wires. The electric power supply unit may supply an electric current to the sensing wires. The measurement unit may measure an ohmic resistance change of the sensing wires. The first axis defined by the parallel sensing wires of the first grid and a second axis defined by the parallel additional sensing wires of the second grid may enclose a slanted angle.

Abstract: An electric motor for starting internal combustion engines and a relative starting control system of such engine comprising said electric motor of the type with permanent magnets allows a more effective and simpler management of the internal combustion engine thereto the electric motor is connected, wherein a monitoring unit of the electric motor (EMU) and a monitoring unit of the internal combustion engine (ECU) are provided, wherein the electric motor comprises a direction sensor (18) providing a signal representing the rotation direction of the rotor (12) of the electric motor, which is connected to said monitoring unit of the internal combustion engine (ECU).

Abstract: In a steer by wire and idle stop vehicle, the idle stop is terminated if the steering wheel (11) is turned by more than a prescribed threshold value. For the purpose of preventing consumption of power by a steering actuator and preventing an unexpected steering action upon termination of the idle stop, the engine restart threshold value (??th) is varied depending on the direction of the change of the steering angle from the start of the idle stop operation. In particular, if the change (??) of the steering angle is in the direction to increase the steering angle from the value (?s) at the start of the idle stop operation, the engine restart threshold value is raised. If the change of the steering angle is in the direction to decrease the steering angle from the value at the start of the idle stop operation, the engine restart threshold value is lowered.

Abstract: A snowthrower includes an internal combustion engine and a starter battery pack that provides electrical power to operate an electric starter motor. The starter battery pack is received within a receptacle of the snowthrower and is selectively coupled to the starter motor to initiate operation of the internal combustion engine. The starter battery pack can further include a battery heating circuit that is operable to heat the starter battery pack above ambient temperatures to increase the current output of the starter battery pack. The battery heating circuit includes a controller that utilizes electrical power from the starter battery pack to heat the starter battery pack.

Abstract: The present invention relates to the field of power tool devices, and more specifically, to a gasoline engine starting relay and a method of starting a gasoline engine. The small two-stroke or four-stroke gasoline engine starting relay comprises a housing, a power transfer end assembly, a power output end assembly, wherein the housing is provided with a device tube slot which has holes on both sides, namely a power transfer end hole and a power output end hole respectively, and which is mated with the power transfer end assembly and the power output end assembly. It can significantly improve and resolve the starting performance of a gasoline engine, and avoid difficulty in the hand-pulled starting so that the starting effect on a gasoline engine with large emissions for female workers, who may find difficulty in hand-pulled starting, is extremely obvious.

Abstract: A controller for a spark plug of an engine is provided. The controller is configured to receive a signal indicative of an operational parameter of the engine. The controller is configured to define a breakdown time duration for the spark plug. Further, the controller is configured to determine an optimum amount of energy required to generate a spark for the spark plug based on the defined breakdown time duration and the operational parameter. The controller is further configured to cause the optimum amount of energy to be supplied to the spark plug to cause the spark to be generated for the spark plug.

Abstract: This hydrokinetic rotor is arranged to be rotated by a flow of a liquid. This rotor comprises of an inner ring, an outer ring and at least one blade extending between the inner ring and the outer ring in a radial direction (R), the inner rings and the external rings being centered on a same longitudinal axis (X). This rotor comprises of at least one radial axis extending radially between the inner ring and the outer ring, and at least one blade is movable around the respective radial axis. The rotor comprises of the limitation means of the movement in rotation of at least one blade mentioned above around its respective radial axis.

Abstract: The present invention generally relates to runner unit of a tidal power plant, and more particular to a blade of the runner unit. The blade according to the invention provides a maximised efficiency of energy production of the tidal power plant during functioning of both direct and reverse modes.

Abstract: An artificial reef to be anchored to the seabed comprises two or more juxtaposed conduits which are positioned in parallel with the direction of wave propagation. Both conduits include directrices. The upper conduit includes directrices which drive the flow of the wave's crest, and the lower conduit includes directrices which drive the water diverging from the apertures in the area under the wave's trough. The upper and lower conduits are hydraulically connected, each connection comprising a shut-down valve associated with a useful energy-generating unit.

Abstract: A stepwise operating parallel-type hydro power generation system having a fixed flow path includes a parallel pipe, a first power generation facility, a second power facility generation facility, first and second flow regulators, and a controller. The parallel pipe includes an inlet pipe, an outlet pipe, and a first straight pipe and a second straight pipe. The first and second straight pipes connected between the inlet pipe and the outlet pipe. Each of the first and second power generation facilities includes a water turbine rotating with the water introduced thereinto and a power generator operating according to the rotation of the water turbine. The controller is configured to open and close either or both of the first and second flow rate regulators at the same time.

Abstract: A phase-shift-assisted gravity drive system is provided. The phase-shift-assisted gravity drive system has a series of repeating phase-shift chambers separated by inner baffles, wherein the series of repeating steam chambers define a circular loop about a hub. The phase-shift-assisted gravity drive system with the addition of a heat source is adapted to unidirectionally change steam from one phase-shift chamber to spraying condensation flowing into an adjacent phase-shift chamber. Thereby, the phase-shift-assisted gravity drive system generates force through this unidirectional transfer of the fluid throughout the loop of phase-shift chambers so that the loop rotates about its hub under the further influence of gravity, wherein the hub can be attached to a mechanism for applying rotation force thereto.

Abstract: A potential energy store has a hydraulic cylinder in which a piston for storing energy in the form of potential energy of the piston is arranged. A position of the piston relative to the earth's surface can be varied. A pump pumps hydraulic fluid via lines into the hydraulic cylinder such that the piston is raised. A generator converts hydraulic energy of hydraulic fluid, which is displaced out of the hydraulic cylinder as the piston falls, into electricity. A seal arrangement is at least partially arranged between the hydraulic cylinder and the piston. The seal arrangement has a sealing section with a flexible support structure for absorbing the acting forces. The support structure may be coated on one or both sides with a layer which is impervious to fluid and which seals against the passage of fluid or may be impregnated with a solidified material which is impervious to fluid.

Abstract: A toilet includes a power generation assembly connected thereto which is activated when flushing the toilet so as to generate electric power. The power generation assembly includes a body with a rotary unit and a power generation unit received therein. The power generation unit includes multiple magnets and coil units which. When flushing, the rotary unit is rotated by water and the magnets are rotated relative to the coil units. The coil units generate electric current to provide the necessary electric power of the toilet.

Abstract: A hydrostatic axial piston machine includes a double-acting actuating cylinder configured to adjust the piston displacement. The actuating cylinder has two actuating chambers that are connected to two spatially separated cartridge valves. The two cartridge valves are inserted obliquely into a wall section of the axial piston machine. The wall section on the one hand forms a wall of the housing of the axial piston machine and on the other hand forms a wall of the actuating cylinder.

Abstract: A hydraulic motor includes a motor mechanism that rotates by hydraulic liquid that is supplied/discharged from a hydraulic liquid pressure source through one of a first motor passage and a second motor passage. The hydraulic motor comprises a casing that defines a casing chamber which accommodates the motor mechanism, and a flushing passage that is in communication with the casing chamber and extracts a portion of the hydraulic liquid from a low pressure side among the first motor passage and the second motor passage and leads it to the casing chamber.

Abstract: A wind turbine for capturing energy from a fluid flow comprises a rotor having a rotational axis and a plurality of rotor blades 104 arranged for rotation about the rotational axis. The rotor blades extend longitudinally in a direction substantially parallel to the rotational axis. A shield member V3 is arranged to shield some of the rotor blades from an oncoming wind where incidence of the wind on those rotor blades would act against rotation of the rotor in the direction of rotation. The rotor blades 104 are distributed about the circumference of the rotor and are spaced from the rotational axis, defining a substantially cylindrical space within the rotor through which the wind passes. The shield member V3 is defined by a radially inward surface and a radially outward surface. The radially inward surface follows substantially a portion of the circumference of the rotor. The radially outward surface of the shield member V3 comprises a first portion which meets the radially inward surface.

Abstract: A method of using a bagged power generation system comprising windbags and waterbags integrated with drones and adapting drone technologies for harnessing wind and water power to produce electricity. An extremely scalable and environmentally friendly method, system, apparatus, equipment, techniques and ecosystem configured to produce renewable green energy with high productivity and efficiency.

Abstract: A system for providing access to a wireless communication network can include a plurality of renewable energy structures. Each renewable energy structure can include an electricity generation assembly, a telescoping support pole positioned to support the electricity generation assembly, and a wireless communication device configured to relay wireless communication signals between a host signal source and a client device. The electricity generation assembly can include a wind turbine assembly and/or a solar power structure. The wireless communication device can include a cellular telephone signal repeater and/or wireless internet equipment. Each structure can include a display, such as an advertisement, one or more benches, and/or a container. Each structure can optionally include a water purification system, one or more cameras, one or more lights, and/or one or more motion or voice sensors for activating or deactivating various components of the system. Each structure may be permanently installed or mobile.

Abstract: This invention is a wind turbine support assembly comprising that can include an anchored buoy connected to a main anchor line; a docking line attached to the floatable support and the anchored buoy for securing the floatable support to the anchored buoy; a trolley removably and slidably attached to the main anchor line; a secondary anchor line attached to the trolley and a secondary anchor; and, a drop line removably attached to the secondary anchor configured to lower the secondary anchor in proximity to the main anchor so that the trolley, secondary anchor line, and secondary anchor is configured to provide an anchor support structure for the main anchor.

Abstract: A wind-turbine gearbox system includes an input gear stage having mating gear surfaces finished to a surface roughness of less than 0.25 micron and at least one bearing supporting the input gear stage. A lubrication circuit is arranged to deliver lubricant to the input gear stage and the bearing during operation of the wind-turbine and includes an inline filter for removal of particles of less than 2 micron from the lubricant prior to delivery. A lubricant for use in the system may have a relatively low viscosity compared to conventional wind turbine gearbox lubricants.

Abstract: A joint member for a wind power generation apparatus includes: a first rotor integrally rotating with an output shaft of a speed increaser; a second rotor integrally rotating with an input shaft of a generator; and a one-way clutch provided between the first rotor and the second rotor. A torsion promoting portion being readily twisted and elastically deformed is provided at a portion of the first rotor where power is transmitted from the output shaft to the one-way clutch.

Abstract: A method is proposed for operating a wind turbine, including the following steps: deriving at least one turbulence characteristic of atmosphere hitting the wind turbine, determining at least one wind turbine specific parameter based on the at least one derived turbulence characteristic, and operating the wind turbine according to the at least one determined turbine specific parameter is provided. Further, a wind turbine and a device as well as a computer program product and a computer readable medium are also provided.

Abstract: The present disclosure is directed to systems and methods for de-icing a rotor blade of a wind turbine. The wind turbine has a nacelle mounted atop a tower. The nacelle has a rotor with a rotatable hub having rotor blade mounted thereto. The method includes shutting down the wind turbine in response to detecting ice on the rotor blade. The method also includes positioning the wind turbine in a de-icing position, the de-icing position including at least one of yawing the nacelle of the wind turbine such that the rotor is in a down-wind location of the tower or pitching the rotor blade such that a leading edge of the rotor blade is facing the tower. Another step includes de-icing the rotor blade while the rotor is in the de-icing position.

Abstract: A floating VAWT comprising a wind turbine body having a lower body portion and an upper body portion; at least one blade attached to the upper body portion for converting wind energy to rotation of the wind turbine body; and an energy converter attached to the wind turbine body for converting the rotation of the wind turbine body to electrical energy. The energy converter comprises a first energy converter part, and a second energy converter part to be kept relatively stationary in relation to the first energy converter part. The energy converter is attached to the wind turbine body by means of a first releasable mechanical coupling between the first energy converter part and the lower body portion of the wind turbine body, and a second releasable mechanical coupling between the first energy converter part and the upper body portion of the wind turbine body.