Abstract: A control system for an engine includes an operational data sensor generating signals indicative of operational data of the engine and a controller communicably coupled with the engine and the operational data sensor. The controller operates the engine based on operational parameters defined by a baseline engine model. The controller receives the signals indicative of the operational data of the engine, and generates a dynamic engine model which defines at least one operational parameter of the engine based on the received operational data of the engine. The controller compares the baseline engine model to the dynamic engine model. The controller determines a difference between the baseline engine model and the dynamic engine model based on the comparison. The controller compares the determined difference to a threshold difference value and operates the engine based on the dynamic engine model, if the determined difference exceeds the threshold difference value.

Abstract: One embodiment is a method comprising operating an internal combustion engine system including multiple cylinders structured to combust a charge mixture and to output exhaust to an exhaust manifold, an electronic control system structured to control operation of the engine system and an exhaust manifold pressure (EMP) sensor structured to provide data to the electronic control system and performing an air-fuel ratio (AFR) imbalance diagnostic with the electronic control system. The AFR imbalance diagnostic may comprise the acts of processing the data to provide at least one output metric sample, determining an output metric statistic based on the at least one output metric sample, evaluating the output metric statistic relative to one or more predetermined criteria to identify an AFR imbalance condition, and providing an operator perceptible indication of the AFR imbalance condition.

Abstract: The objective of the present invention is to correct deviation in the injection amount and changes in the injection timing when the voltage of a high-voltage source for a drive device decreases.

Abstract: An onboard control device has a drive manipulated variable detection unit (101) for determining a drive manipulated variable manipulated by a driver to impart a propulsive force to a vehicle, a command value calculation unit (109) for calculating a command value for a drive source of the vehicle based on the drive manipulated variable, a propulsive force control unit (115) for controlling the propulsive force based on the command value, operating state detection units (102, 103) for determining the operating states of the drive source, a drive manipulation rate of change calculation unit (110) for calculating the rate of change in drive manipulation, an operating state rate of change calculation unit (111) for calculating the rate of change in the operating state, and an abnormality detection unit (112) for detecting abnormalities in the drive source based on the rates of change in drive manipulation and the operating state.

Abstract: A horsepower on demand system is presented that facilitates a user to purchase additional power from a third party provider. The system includes a vehicle with an engine, a control system, a microprocessor, memory and software and a wireless communications module. The system also includes a third party provider having a module, a database, software, and an interface. When a user purchases additional power from the third party provider, the third party provider transmits a control signal over a wireless communications network to the vehicle and the vehicle's control system modifies the operational characteristics of the motor thereby increasing the power output.

Abstract: Engine block assemblies and methods for making the same are provided. Methods include casting an engine block around one or more extruded aluminum cylindrical cylinder liners, wherein each cylinder liner includes a cylindrical inner surface and an outer surface, and the outer surface of each of the cylinder liners is contiguous with the engine block and defines a cylinder bore, subsequently surface-preparing the inner surface of each of the cylinder liners, subsequently applying a ferrous liner to an inner side of each of the cylinder liners via thermal spraying, and subsequently machining an inner surface of the ferrous liner. Each of the aluminum cylinder liners are extruded, and can comprise a low silicon content aluminum alloy. The engine block can comprise a high silicon content aluminum alloy. Each of the one or more ferrous liners comprises a thickness of less than about 175 microns.

Abstract: A cylinder sleeve for an internal combustion engine may include a bore-through cylindrical body having an inner sliding surface. The inner surface may have a surface finish with a rugosity defined by a valley-and-peak structure. The rugosity of the inner surface may have a ratio between a peak density and a mean radius of curvature of peaks that is higher than 150 and lower than 400. The rugosity may also have a ratio between the mean radius of curvature of peaks and an average height of peaks that is lower than 1500.

Abstract: An engine device including, a cylinder block (6) having one side portion to which a flywheel that is rotated integrally with a crankshaft (5) is disposed. The engine device is provided with a starter (20) that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing (7), which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter (20), is attached to the one side portion of the cylinder block (6). The starter (20) is disposed inner side of the engine than a portion of the flywheel housing (7), the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center (300) and that is parallel to the cylinder head joining surface (341) of the cylinder block (6).

Abstract: An exhaust section of a gas turbine engine includes an exhaust plug defining a plurality of exhaust plug apertures circumferentially spaced from each other. Also included is an exhaust nozzle radially offset from the exhaust plug defining an exhaust pathway between the exhaust plug and the exhaust nozzle. Further included is an exhaust plug liner having a non-uniform outer surface axially aligned with the exhaust plug apertures. The exhaust plug liner is rotatable relative to exhaust plug between a first position and a second position to selectively change a cross-sectional area of the exhaust pathway during thrust reversal operation to increase an amount of reverse thrust.

Abstract: A turbofan having a dilution rate of at least 10 and including a fan having a disc provided with blades at the periphery thereof, a distance between the head of the blades and the housing of the fan being less than or equal to ten millimeters; a primary flow space and secondary flow space that are concentric; a turbine, housed in the primary flow space and in fluid communication with the fan; and a reduction mechanism coupling the turbine and the fan.

Abstract: A fuel module system is provided. The fuel module system can be mounted on a chassis of a vehicle and deliver a material from a container to an engine at a regulated pressure and a target temperature for optimization of the vehicle. The flow of material can be from the one or more containers to the fuel module system and then to a portion of the engine, wherein the material housed within the one or more containers has a first temperature, a first pressure, and a first flow rate and at the delivery to the portion of engine, the material is adjusted by the fuel module system.

Abstract: A valve arrangement for supplying air to a combustion chamber of an internal combustion engine includes a first valve, the first valve including a first valve head, a first valve stem assembly and an internal cavity, which is at least partly located in the first valve stem assembly, and a second valve partly arranged within the internal cavity of the first valve, the second valve including a second valve head and a second valve stem assembly, and being movable within the internal cavity between an upper, closed position and a lower, open position, wherein a junction seal extends over a junction between the first valve stem assembly and the second valve stem assembly when the second valve is in the closed position. A leakage preventing arrangement is arranged to hinder leakage of liquid from the outside of the junction seal from reaching in between the first valve stem assembly and the second salve stem assembly.

Abstract: A high efficiency electrode consisting of an electrode plate having a top and a bottom. At least one saw-tooth opening is provided in the electrode plate. Each saw-tooth opening has a plurality of teeth extending upwardly toward the top of the electrode plate, the teeth being separated by v-shaped gaps. Bubbles travel quickly up the angled upslope of the teeth and are released when they reach an apex of each of the teeth.

Abstract: Methods and systems are provided for a mixer. In one example, a system may include an EGR mixing having a downstream surface with a plurality of venturi tubes extending therefrom.

Abstract: A heat exchanger for exchanging heat between a first medium and a second medium has a body comprising a pair of header plates, a pair of distribution plates, and a pair of case body lateral panels. Input and output header plates have a plurality of orifices, with a flow path assembly extending between each input header plate orifice and the corresponding output header plate orifice. Each flow path assembly includes at least one chamber assembly, having a corresponding medium directing component, and transports the first medium. Input and output distribution plates have a plurality of orifices. An inlet side tank engages with the input distribution plate, and an outlet side tank engages with the output distribution plate. The second medium flows from the inlet side tank through the input distribution plate orifices, over the flow path assemblies, through the output distribution plate orifices, and into the outlet side tank.

Abstract: In a valve device (1), when a valve (33) is closed, an output shaft of an actuator unit (10) is connected to the valve (33). A control unit of the valve device (1) determines a control constant to be a value by which a response speed of the actuator unit (10) is smaller as ambient temperature is higher, and performs feedback control.

Abstract: A handheld work apparatus has a combustion engine for driving a tool of the work apparatus and further has an air filter unit for filtering the intake air of the combustion engine. The work apparatus defines a vertical direction. The air filter unit includes an air filter and a filter housing enclosing the air filter. The air filter extends along a filter axis and has a filter element disposed peripherally around the filter axis, wherein the filter axis forms an angle of inclination (?) with the vertical direction. The filter element has an upper filter section in relation to the vertical direction. The filter housing has, remotely from the upper filter section, at least one air intake window and, in addition thereto, a further upper, permanently open cold air intake window in the region of the upper filter section.

Abstract: A vehicle air intake assembly is disclosed. The assembly includes a housing, a conical filter, and optionally may also include an inlet cowl. The housing and filter decrease in diameter from an inlet or distal end toward a proximal or outlet end. The shape of the housing guides the air into a smaller cross-sectional area and induces a Venturi effect on the airflow passing through the housing and filter. The housing decouples the filter from an engine inlet and the proximal or outlet end of the housing is sized so as to attach to the engine inlet and provide a smooth transition for the air leaving the housing and entering the engine inlet.

Abstract: To provide an intake system of an internal combustion engine that can improve rigidity of a throttle body by strengthening a connection between plural components having an intake passage and further stabilize the opening degree of the throttle body. An intake system of an internal combustion engine includes: a plurality of throttle body members, each having at least one intake passage; and a plurality of structural connectors that are provided on respective throttle body members and connect adjacent the throttle body members with each other. The plurality of structural connectors includes a pair of structural connectors that are connected with each other in directions different from each other.

Abstract: Disclosed is a fluid accelerator provided on a fluid flow path so as to improve the fluid flow velocity. To this end, provided is a fluid accelerator comprising: a body formed in a cylindrical structure so as to be provided on a fluid flow path; a center hole forming a venturi passage in the vertical direction in the center of the body and having a helical guide groove provided on the inner circumferential surface of the venturi passage; and a plurality of middle holes formed in the vertical direction of the body along the edge of the center hole around the center hole. The fluid accelerator of the present invention can be easily provided in conventional device using fluid, thereby improving the fluid velocity.

Abstract: A selective fuel regulator includes: a fuel tank having therein a cold-area-purpose fuel storage unit and a general-purpose fuel storage unit, a cold-area-purpose fuel pipe connected to the cold-area-purpose fuel storage unit, and a general-purpose fuel pipe connected to the general-purpose fuel storage unit; a body installed in the fuel tank, the body having therein a receiving space; a plurality of pipes, one end of each pipe located in the fuel tank, and the other end of each pipe located in the receiving space in order to supply fuel from the fuel tank to an engine or to collect residual fuel from the engine; a fuel port, one end of the fuel port located in the receiving space, and the other end of the fuel port located outside the body in order to connect the plurality of pipes to a fuel line installed outside the fuel tank; and a connector located between the one end of the fuel port and the respective other ends of the plurality of pipes so as to slide between the cold-area-purpose fuel pipe and the ge

Abstract: A hyperbaric fuel system (10a, 10b) produces hydrogenated liquid fuel (30) for combustion reactions of compression or spark ignition engines and improves fossil fuel efficiency without requiring major changes to existing fuel systems. The hydrogenated liquid fuel (30) decreases the NOx, CO and unburned hydrocarbon particulate matter, and reduces the consumption of liquid fuel (26). The systems produces hydrogen gas (18) and dissolves the hydrogen gas (18) in the liquid fuel (26) using several chambers, including a hyperbaric mixing chamber (58), between the liquid fuel supply and a fuel pump (28) supplying the hydrogenated liquid fuel (30) to fuel injectors (40). Unused hydrogen gas (18) and hydrogenated liquid fuel (30) is recirculated to minimize loss of efficiency. The system preferably includes a water reservoir and electrolysis device to generate the hydrogen gas.

Abstract: A heated filter shell assembly for a fuel filtration system includes a filter shell defining a cavity sized to accommodate at least a portion of a fluid filtration cartridge and a cartridge receiving aperture at a first end. A heating element is disposed within the cavity and is operatively coupled to the filter shell adjacent to a second end of the filter shell. A feed wire is operatively coupled to the heating element at a feed wire first end and is configured for electrical energy receiving communication with an energy source at a feed wire second end.

Abstract: Disclosed herein is a high-pressure fuel pump. The high-pressure fuel pump includes a housing including a chamber provided to compress fuel supplied thereinto, an inlet flow passage that communicates with the chamber to draw fuel into the chamber through the inlet flow passage, and a discharge flow passage that communicates with the chamber to discharge the fuel out of the chamber through the discharge flow passage. The high-pressure fuel pump further includes a piston disposed in the housing and configured to linearly reciprocate to compress the fuel supplied into the chamber; and a discharge valve disposed in the discharge flow passage of the housing and configured to open when a pressure of fuel stored in the chamber is equal to or greater than a first pressure, the discharge valve including an open-and-close member that makes line contact with an inlet of the discharge valve to close the inlet.

Abstract: An energize-to-close solenoid operated spool type inlet control valve for a high pressure fuel pump is variably positionable relative to a sleeve having three inlet feed ports and the inlet check valve member, to implement three stages of pump operation: limp-home, low-pressure flow from the low-pressure feed pump to the common rail, no flow to the common rail, and metered quantity of flow to the common rail. The spool valve includes an axially extending internal passage fluidly connected to a fluid volume at the front end of the spool valve, and a control port at the back end of the spool valve, selectively alignable to fluidly connect the ports. Two springs of different lengths either alone or together, bias the spool valve toward opening of the inlet check valve.

Abstract: Some embodiments may include a valve for a pump comprising: a first stop element having a longitudinal axis and a sealing seat; an actuator providing an actuator force along the longitudinal axis; a pin movable relative to the first stop element along the longitudinal axis and movable by the actuator force; a sealing element moved by the pin relative to the valve seat in order to open or close the valve; and a second stop element rigidly fastened to the first stop element providing a stop for the sealing element to limit movement of the sealing element away from the sealing seat along the longitudinal axis. The second stop element is fastened at a defined predetermined distance from the first stop element to define a spacing between the sealing seat and the stop.

Abstract: A high-pressure fuel pump includes a housing including a chamber, an inlet flow passage to draw fuel into the chamber, and a discharge flow passage to discharge fuel out of the chamber. The high-pressure fuel pump further includes a piston disposed in the housing and configured to compress fuel, a sleeve coupled to the housing and configured to support the piston and form a space for storing fuel, a discharge valve disposed in the discharge flow passage and configured to open when a pressure of fuel stored in the chamber is equal to or greater than a first pressure, and a pressure relief valve disposed in a relief flow passage that communicates with the discharge flow passage and the space. The pressure relief valve is configured to open when a pressure of fuel supplied into the relief flow passage is equal to or greater than a second pressure.

Abstract: Disclosed is a vehicle. The vehicle generally includes a frame to support an engine and one or more ground supports, such as wheels, to support the frame. The engine may include an internal combustion power plant and a fuel supply system therefore.

Abstract: A starting power generation apparatus according to an embodiment of the present invention includes: a starter generator including a field portion having a permanent magnet, and an armature unit including a first multi-phase winding and a second multi-phase winding which are arranged in parallel; a first power conversion unit including a first positive-side DC terminal connected to a battery and a plurality of first AC terminals connected to the first multi-phase winding, the first power conversion unit being configured to convert a power bidirectionally between DC and AC; a second power conversion unit including a plurality of second AC terminals connected to the second multi-phase winding, the second power conversion unit being configured to control a current to be input and output via the second AC terminals; and a control unit configured to detect a positional relationship between the field portion and the armature unit based on an output voltage of the second multi-phase winding, and control the first pow

Abstract: An on-board control system that includes a portable device that transmits a control signal for operating equipment mounted in a vehicle; and an on-board electronic control unit that receives the control signal transmitted from the portable device and operates the equipment on the basis of the received control signal, wherein the portable device includes: a communicator that communicates with an external communicator; an electronic control unit that determines whether or not prescribed communication has been carried out with the external communicator through the communicator; and a transmitter that transmits the control signal for operating the equipment in the case where the electronic control unit determines that the prescribed communication has been carried out.

Abstract: The invention relates mainly to an assembly comprising:—a combustion engine ring gear having a plurality of teeth, the said ring gear being defined by a modulus and a pressure angle,—a starter comprising a pinion (31) able to engage with the said ring gear of the said combustion engine, the said pinion (31) having a plurality of teeth (42) is defined by a modulus (Mp) and a pressure angle (alpha_p), characterized in that a pinion product which is the product of the modulus (Mp) of the said pinion (31) and the cosine of the pressure angle (alpha_p) of the said pinion (31) is greater than a ring-gear product equal to the product of the modulus of the said ring gear and the cosine of the pressure angle of the said ring gear.

Abstract: A handheld work apparatus has a combustion engine and an ignition device for controlling a spark plug. The ignition device includes an electronic control device having a short circuit button for switching off the combustion engine. A temperature sensor is for capturing an operating temperature. The short circuit button and the temperature sensor are connected to a common signal input of the control device via a common signal line. The temperature sensor is an ohmic resistance variable on the basis of the temperature. A measurement voltage dropped across the resistance of the temperature sensor is supplied, as an analog temperature signal, to a common analog signal input of the control device. The measurement voltage at the temperature sensor collapses in the button position of the short circuit button, as a result of which the analog temperature signal applied to the analog signal input of the control device is extinguished.

Abstract: Systems and methods for hydro-electric power generation are disclosed. The system includes a frame or structure positioned in a waterway or channel, with one or more hydro-transition units secured to corners of the frame. The hydro-transition units include a body of reinforced fabric for redirecting water flow towards the inlet of the frame, effectively increasing the current of the water and allowing for turbines within the frame to generate power at an increased rate. Anchors and bracket systems may secure the hydro-transition units to both the waterway and the frame, thereby allowing the body of reinforced fabric to withstanding force from water-flow within the waterway. The system includes various failsafe mechanisms for disengaging or detaching the hydro-transition units from the frame and/or anchor for reacting to high water flow or volumes (e.g., flooding).

Abstract: An energy storage method and system includes a collapsible bladder that is filled with water at depth. The bladder may be lowered to additional depths to increase the pressure experienced within the bladder and to increase the stored energy. In a preferred embodiment, over produced electricity is used to pump water into a bladder. During periods of high electricity demand, pressurized water within the bladder is directed through a conduit to turn turbines of generators and produce electricity. Two large all-thread screws are attached to the bladder and anchored to the seafloor or at or near a bottom of a body of water. Associated threaded mechanisms are connected to the exterior of the bladder such that when the all-thread screws are turned, the bladder is raised and lowered within the water to vary the internal pressure. In this manner, the bladder is lowered or anchored deeper as needed to produce additional pressure.

Abstract: The Barton Float Generator is a device that uses water currents, water waves or water elevation changes to push/pull magnets threw electrical coils to generate electrical energy. The barton float generator will also be composed of a float, a yellow pole, two check valves, two tubes, 4 electrical coils and 8 magnets with 3 spacer in between them.

Abstract: A uniaxial power converting apparatus includes a floating unit into which the kinetic energy of waves is inputted and which is moored at sea by a wire, a direction change unit for changing a direction of the wire, and a power conversion module for transmitting the tension of the wire to a generator. The power conversion module can transmit a driving force to a power shaft to which the generator is connected from a drum around which the wire is wound.

Abstract: An energy conversion device is disclosed. The energy conversion device can include a magnetic field producing element, and a coil having a coil axis. The magnetic field producing element and the coil can be movable relative to one another in a movement plane. The coil axis can be substantially perpendicular to the movement plane.

Abstract: A counterweight system for mounting a rotor blade on a balanced rotatable hub of a wind turbine is disclosed. The rotatable hub can have at least one blade root region configured to receive a blade root of the rotor blade, and also have a pitch system configured to rotate the rotor blade around a pitch axis. The counterweight system can have at least one support structure having a proximal end spaced apart from a distal end with the proximal end mountable to at least one blade root region of the rotatable hub. The at least one counterweight mass can be at least partially filled with fluid and coupled to the distal end of the at least one support structure. The at least one support structure can be arranged substantially parallel to the pitch axis such that the pitch system rotates the counterweight mass about the pitch axis.

Abstract: The present invention concerns a device transforming the energy from fluid flows into mechanical and electrical energy. The sources of primary energy are wind for the wind turbine version, or hydraulic flows such as marine or river currents, waves and tides, etc. for the water or hydro turbine version. The device consists of a fluid guidance system (1), a rotor comprising at least two regularly arranged blades (2), a protective structure (4), a structuring framework (6), a top box (5) and a bottom box (7). The device will play the role not only of wind turbine/water turbine but also of noise barriers, wave barriers, safety barriers and wireless electrical charging systems along the transport networks. This invention is intended for companies or organizations producing electricity and individuals wishing to produce electricity.

Abstract: The invention relates to a renewable energy power generating device for converting wind and/or water-flow energy into useable electrical power. The power generating device includes a support structure (112 A) rotatable about a first axis of rotation (C), a plurality of aerofoil blades rotatably mounted on the support structure (112 A) and free to rotate relative thereto about a second axes of rotation (Q) substantially parallel to and radially spaced from the first axis of rotation (C), and a means (162, 166, 168) for actuating the aerofoil blades (114) between first (114 A) and second (114 B) reflexed camber aerofoil section conditions such that the aerofoil blades (114) are freely rotatable to automatically set an angle of attack relative to a fluid flow direction (D) thereby to generate a lift force thereover and transmitting a torque to the support structure (112 A) to drive it through a repeating 360 degree rotary cycle.

Abstract: A wind turbine device including: a blade rotation speed calculator to calculate a blade rotation speed of blades of a wind turbine, the blades crossing laser light emitted by a wind measurement lidar device installed on a wind turbine nacelle of the wind turbine; a coming wind velocity calculator to calculate a coming wind velocity on a basis of a wind velocity in line-of-sight direction of the laser light, the wind velocity being obtained from the wind measurement lidar device; and a start assist controller to control a start assist for starting rotation of the blades on a basis of the blade rotation speed calculated by the blade rotation speed calculator and the coming wind velocity calculated by the coming wind velocity calculator.

Abstract: A method of determining a twist angle of a wind turbine blade, the method comprising providing first and second transmitters on the wind turbine blade, the first transmitter being spaced apart from a receiver by a first distance, and the second transmitter being spaced 5 apart from the receiver by a second distance, the transmitters being arranged such that twisting of the blade causes an increase in one of the first or second distances and a decrease in the other of the first or second distances; transmitting a blinking signal from each of the first and second transmitters towards the receiver, the blinking signals having a blinking frequency; varying the blinking frequency of the blinking signals; monitoring the 10 amplitude of the blinking signal received by the receiver as the blinking frequency is varied; determining a particular blinking frequency that results in an increased amplitude of the blinking signal received by the receiver; and using the determined particular blinking frequency to calculate th

Abstract: The invention relates to control of a wind turbine comprising a plurality of multi-axial accelerometers mounted at different positions in the nacelle and/or in a top portion of the tower. The position and orientation of each accelerometer as mounted is obtained, accelerations in at least two different directions by each accelerometer are measured during operation of the wind turbine. From a number of predetermined mode shapes for the movement of the wind turbine is then determined an absolute position of at least one of the accelerometers during operation of the wind turbine based on the measured accelerations, the mount position and orientation of each accelerometer and the pre-determined mode shapes. Hereby a more precise absolute position during operation is obtained which can be used in the controlling of the turbine.

Abstract: Controlling a first renewable energy power plant by determining power delivery of the first renewable energy power plant to a collector bus; receiving data relating to power delivery from a second renewable energy power plant connected to the collector bus; determining the combined power delivery of the first and second renewable energy power plants to the collector bus; estimating the transmission line power loss on a first transmission line between the collector bus and a power grid point of interconnection (POI) based on the combined power delivery; and regulating the power delivery from the first renewable energy power plant to compensate for the estimated transmission line power loss.

Abstract: A multiple radial gap BLPMDC/BLPMAC motor/generator suitable for direct drive wind or other fluid medium driven turbines or other rotary machine application. Each rotor and stator segment are housed in a fixture having an intermediate interior ramp angularly inclined at an angle of from about 10° to about 80° to cause the rotor/stator segments to interact at the axis of rotation of the fluid medium driven rotating machine at the same angle.

Abstract: The invention relates to a system and a method for monitoring a flange connection of a wind turbine, and to a corresponding wind turbine. According to the invention, one or more monitoring bodies (90) are mounted on one or more bolt nuts (20) and/or bolt heads of at least one flange connection of a wind turbine, and a circuit of the monitoring bodies (90) is produced with connecting cables (100) such that, upon rotation of a slackening bolt nut (20) or of a bolt head of a slackening bolt and of the monitoring body (90) mounted thereon, at least one connecting cable (100) connected to the concomitantly rotating monitoring body (90) becomes detached, owing to increasing tensile stress on the connecting cable (100), a fault in the flange connection being signaled upon slackening of a bolt nut (20) or bolt.

Abstract: A method for changing a bearing component of a main bearing of a wind turbine, with the bearing component directly bearing a rotating shaft, characterised in that the bearing component being unloaded by mechanically moving the shaft is axially moved from or into its mounting position by means of a replacement tool device is provided.

Abstract: Apparatus for treating a surface of a wind turbine blade (14), comprising an expandable structure (22) that is deployable from a collapsed state into an expanded state in which the structure defines an elongated treatment zone (32) into which a blade (14) is receivable in use. The apparatus includes treating means (52) arranged to apply a treatment in the treatment zone.

Abstract: A fluid bearing for a wind turbine includes: a bearing housing, a plurality of bearing pads inside the bearing housing and circumferentially distributed around a longitudinal axis of the fluid bearing, a plurality of supporting structures, each supporting structure having at least a first interface detachably connected to a respective seat provided in the bearing housing and at least a second interface detachably connected to a respective bearing pad of the plurality of bearing pads, each supporting structure allowing tilting of the respective bearing pad with respect to the bearing housing.

Abstract: Provided is a wind turbine, including a hub, a shaft which is connected to the hub, a bearing housing, in which the shaft is supported rotatable, a fluid bearing which supports the shaft in the bearing housing, wherein the fluid bearing is arranged at a proximal end of the shaft, wherein the proximal end of the shaft is positioned proximal to the hub, and a roller bearing which also supports the shaft in the bearing housing, wherein the roller bearing is arranged at a distal end of the shaft, and wherein the distal end of the shaft is positioned distal to the hub. One advantage of the wind turbine is that compared to roller bearings, the fluid bearing provides a bearing type with high load capacity and scalability to even large wind turbines.