Abstract: A wind guide system to speed up wind at a wind turbine and thereby improve its energy production is disclosed. The wind guide system is built with modules like load-bearing piles, steel sheet piles, shipping containers or straw bales. The main purposes of the invention are to save overall costs for new wind guide system installations to improve the cost of renewable energy, to reduce the CO2 footprint of the wind guide system and to adapt it better to site conditions and the environment. The main cost savings comprise manufacturing costs, transportation costs from the factory to the often-remote wind turbine sites and installation cost and time.

Abstract: Apportioned segments from the surface of a duct in a ducted turbine may be articulated to reduce the surface area of the duct. The apportioned segments are employed to reduce the surface area and therefore the wind resistance of the duct, in excessive wind conditions where excessive side loads are exerted upon the ducted turbine.

Abstract: The present disclosure provides a blade for a wind turbine, where the blade extends in a lengthwise direction between a root end and a tip end of the blade. The blade comprises a leeward shell portion and a windward shell portion, each of the shell portions defining respective inner and outer surfaces extending in a chordwise direction between a leading edge of the blade and a trailing edge of the blade. The blade further comprises a first windward reinforcement structure, a first leeward reinforcement structure, a second windward reinforcement structure, and a second leeward reinforcement structure, the reinforcement structures being arranged internally within the blade and extending in the lengthwise direction of the blade.

Abstract: A fluid turbine assembly includes a circular housing, one or more turbines placed inside the housing and configured to rotate about a rotational axis, the turbine including a rotor and a plurality of blades which protrude from an outer surface of the rotor, a funnel assembly configured to collect and compress fluid stream energy through a fluid inlet opening, and an intake ducting part of the funnel configured to direct the collected fluid stream energy into the housing and toward the turbine blades in a first direction, and to direct the collected fluid stream energy into the housing and toward the turbine blades in a second direction opposite the first direction at the same time. The funnel is configured to rotate on the same axis independently of the turbine blades.

Abstract: A wind power generation device includes rotary blades that each includes a front blade surface parallel to the rotation axis and curved to protrude frontward, and a rear blade surface, being parallel to the rotation axis, curved so as to be concave frontward, and having a smaller curve depth than the front blade surface. The front blade surface includes a first curved surface far from the rotation axis and formed frontward from an outer end, and a second curved surface close to the rotation axis and formed rearward from a crest to connect to an inner end, a surface length thereof being smaller than that of the first curved surface. The first curved surface has recesses at positions closer to the outer end than to the crest of the front blade surface. Thus, the rotary blade rotates by receiving a fluid and can improve rotation efficiency.

Abstract: The invention relates to a wind turbine system (WTS) comprising at least two blade rotors rotatably mounted to a nacelle (rotatably) mounted to a tower provided above a (water) level. The WTS can be characterised in that the blade rotors are interconnected by one or more retractable blades. The retractable blades can have variable properties, they can be stowable, can be able to weathervane, and can comprise a defined construction, a working mean. The blade rotors can rotate in the same and/or opposite directions. The components can be fabricated of defined materials. The WTS can be provided in an array and it can be couplable or coupled with various mechanocomponents and/or electrocomponents. A method for varying a design point of the disclosed wind turbine is proposed.

Abstract: A method for transitioning a wind turbine into an energy harvesting mode in which the wind turbine generates electrical power from wind energy is provided. An energy storage system supplies electrical power to an auxiliary system when the wind turbine is not generating or receiving electrical power sufficient for supplying the auxiliary system. The method includes operating the wind turbine in a first operating mode in which an electrical power supply is ceased; obtaining environmental data including at least one of wind data and meteorological data; and determining if the obtained environmental data meets a predefined condition. If the predefined condition is met, a transition of the operation of the wind turbine into the energy harvesting mode is caused, wherein transitioning the operation into the energy harvesting mode comprises supplying electrical power from the energy storage system to the one or more auxiliary power consumers of the first group.

Abstract: A method for controlling a wind farm having a plurality of wind turbines electrically connected to an electrical grid through a point of interconnection includes (a) determining, via a controller of the wind farm, a phase and an amplitude of individual power oscillations from each of the plurality of wind turbine power systems. The method also includes (b) determining, via the controller, a farm-level power oscillation for the wind farm based on the individual power oscillations from each of the plurality of wind turbine power systems. Further, the method includes (c) implementing, via the controller, a phase-shifting control scheme using the phases and the amplitudes of the individual power oscillations from each of the plurality of wind turbine power systems so as to maintain the farm-level power oscillation below a predetermined oscillation threshold.

Abstract: A hybrid modular power system with smart control includes a housing configured for containing multiple power modules. A smart control subsystem manages and balances electrical power input from multiple power sources, including a photovoltaic solar panel array subsystem, a wind turbine subsystem, a genset and a battery array. A mast mounted on said housing is configured for mounting a wind turbine, telecommunications antennae, or both. A method of providing electrical power includes the steps of installing multiple power modules in a housing and managing multiple power sources with a smart control subsystem.

Abstract: The invention relates to a wind energy converter (WEC) comprising one or more epicyclic blade rotors having one or more blades and a gear mean, and rotatably supported by a carrier. The gear mean can mesh with a circumferential drive mean and/or with a sun drive mean. The wind energy converter can be characterised in that the gear mean drive an electricity generating mean. The WEC can comprise a ring gear, a belt and/or chain drive and it can be vertically mounted. The WEC can be fabricated of different materials, it can be provided in an array and couplable or coupled with mechano- and/or electrocomponents. The invention further relates to a wind energy providing method using the proposed wind energy converter.

Abstract: A wind-based power generation system including a base, a plurality of towers including a plurality of turbines, at least one pneumatic pump, at least one pneumatic motor, at least one pneumatic generator, an air storage chamber, and a tail component. The wind-based power generation system receives wind via the plurality of turbines and transmit the airflow to pneumatic pumps and motors to power a generator.

Abstract: The invention relates to a crane for assembly and installation of offshore wind turbines on an offshore location, to a vessel for assembly and installation of offshore wind turbines on an offshore location, and to a method for assembly and installation of offshore wind turbines on an offshore location. According to the invention the crane is provided with a base section and a top section, wherein the top section is rotatable supported by a bearing, and can be rotated with the wind turbine hoisting device relative to the base section about a vertical axis, wherein a first trolley guide is mounted to a top section of the installation crane for guiding a vertically mobile wind turbine supporting trolley. According to the invention the vessel is provided with one or more assembly stations on different sides of the installation crane.

Abstract: An assembly for producing offshore electricity having a wind turbine, a monopile extending along a vertical direction and fully supporting the wind turbine, the monopile penetrating in a seabed, and a subsea jacket comprising: a structure anchored in the seabed and surrounding the monopile around the vertical direction, and a central guide fixed on the structure and surrounding the monopile around the vertical direction while being vertically free with respect to the monopile, the structure being adapted for resisting horizontal loads applied by the monopile on the central guide due to bending movements of the monopile.

Abstract: The present disclosure is related to methods for determining a frequency of an oscillation mode of a wind turbine, comprising: determining a motion of a first mass of a first tuned mass damper in the wind turbine and deriving the frequency of the oscillation mode of the wind turbine at least partially based on the determined motion of the first mass. The present disclosure further relates to methods for operating a wind turbine, and to wind turbines, particularly offshore wind turbines, comprising tuned mass dampers.

Abstract: The present disclosure relates to a current transfer element (100) configured to be mounted on a first component (300) of a machine, the machine comprising a second component (200) configured to rotate with respect to the first component and the second component comprising an electrical conductor. The current transfer element (100) comprises a floating conductor assembly, and a support (120), and the floating conductor assembly comprises a floating chassis (111) resiliently connected to the support (120), the floating chassis arranged on a roller (112) which is configured to contact the second component (200), and carrying a floating conductor (113) configured to transfer current from the electrical conductor of the second component (200). The present disclosure further relates to generators and electrical machines comprising floating conductor assemblies, and direct drive wind turbines comprising such generators.

Abstract: A lightning protection system for a wind turbine blade having-a structural element made of fiber reinforced polymer (FRP). The lightning protection system includes a first down conductor extending from a tip end to a tip connection block and a second down conductor extending from the tip connection block between and along the structural element and a pressure side towards a root connection block. A third down conductor extending from the tip connection block between and along the structural element and a suction side towards the root connection block. The second down conductor includes a first expanded foil or a first mesh and the third down conductor includes a second expanded foil or a second mesh. The first expanded foil or first mesh and the second expanded foil or second mesh include a plurality of conductive connection points arranged in the vicinity of the tip and root connection blocks.

Abstract: A system and method for geothermal heat production. A balanced geothermal energy transfer loop includes a first wellbore and a second wellbore extending from surface to a subterranean geothermal formation and a plurality of balanced open hole circuits extending between the first wellbore and the second wellbore through the geothermal formation, forming a substantially sealed closed loop. Each of the plurality of circuits is designed or modified to have a substantially equal circuit parameter. The circuit parameter may include one or more of circuit fluid velocity, circuit pressure drop, circuit volume and/or circuit length. The circuit parameter may include circuit length and volume, and the circuits connect the supply/return wells in a first out/last in configuration.

Abstract: A peristaltic pump including: a rotor, a track, a biasing material configured to resiliently bias the track towards the rotor to compress a flexible tube between the track and the rotor during operation of the pump, and at least one sensor configured to measure movement of the track relative to the rotor during operation of the peristaltic pump and to output a signal indicative of a movement of the tract.

Abstract: A high-pressure water pump lubricated by water or aqueous solution is provided, which includes a driving mechanism, a shell, a rebound structure, at least one plunger and a plunger cavity. The driving mechanism includes a main shaft and at least one eccentric structure arranged on the main shaft, a thrust structure is sleeved on the outer side of each eccentric structure, the thrust structure and the eccentric structure rotate relative to each other, and constitute the first sliding friction pair. The eccentric structure and the thrust structure are located in the shell, and spaces in the shell are filled with water or an aqueous solution that enters the first sliding friction pair. When the eccentric structure is rotated, the thrust structure pushes the plunger to move in the plunger cavity. The plunger moves in the plunger cavity under the rebound force of the rebound structure.

Abstract: A gear pump, in particular for a hydraulic unit in a drive train of a motor vehicle, with a housing which consists of multiple housing parts, with a drive gear and with a pump gear, which are arranged inside the housing. The pump gear is mounted on a bearing structure designed integrally with one of the housing parts.

Abstract: A gear pump includes a pair of gears having meshed teeth. One of the gears is configured for connection to a source of drive. The gears are received within a housing. The housing has an inlet port configured for connection to a source of fluid and an outlet port. Each of the gears have a shaft rotating within the housing on a bearing on each axial side of each gear. At least one of the bearings associated with each of the pair of gears has a plurality of springs received in recesses to bias the said at least one bearing against an end face of a respective one of the pair of gears. A retention plate holds each of the plurality springs. A method of assembly is also disclosed.

Abstract: An element for compression of a gas to be compressed having a low temperature of ?40° C. or lower, which element (1) is provided with a housing (2) containing at least one rotor (3) which is mounted rotatably with its shaft (5) with respect to the housing (2) and with an inlet (6) for the gas to be compressed and an outlet (7) for compressed gas, characterized in that the element (1) is provided with a heating means for an end (9a) of the shaft (5) of the rotor (3) located closest to the inlet (6).

Abstract: A scroll compressor including an orbiting scroll that performs an orbiting motion; a fixed scroll coupled to the orbiting scroll so as to form a compression chamber; and a main frame that rotatably supports the orbiting scroll at an opposite side of the fixed scroll with the orbiting scroll interposed therebetween, and supportably connected to the fixed scroll. The fixed scroll is provided with a back pressure hole formed between a first back pressure chamber in which gas discharged from the compression chamber is received, and the compression chamber. The back pressure hole may communicate with the first back pressure chamber and the compression chamber on the basis of a predetermined pressure ratio of the compression chamber.

Abstract: An electric compressor (1) includes an electric motor (2), a drive circuit (inverter (3)) that drives the electric motor (2), a compression mechanism (4) driven by the electric motor (2) to compress a refrigerant, a conductive member (lead pin (15)) connected to the drive circuit (inverter (3)), a conducting wire (7) drawn from the electric motor (2), a connector terminal (11) that connects the conducting wire (7) and the conductive member (lead pin (15)), a connector housing (12) that includes an opening (13) through which the conducting wire (7) is passed and that houses the connector terminal (11), a seal member (20) interposed between an inner wall of the opening (13) and the conducting wire (7), and a press member (30) that presses the seal member (20) toward the conducting wire (7).

Abstract: Provided is a compressor including a compressor unit that includes a compressor body that compresses gas and a motor that drives the compressor body, and a controller that carries out the operation number control for a plurality of the compressor units. The plurality of compressor units are connected to the same pipe. The controller causes, while continuing the operation number control for the compressor units that are a target of the operation number control, the compressor unit excluded from the target of the operation number control to start.

Abstract: An electric compressor, wherein an oil separator is formed on an inner wall on the discharge path, and wherein the oil separator is formed in a concavo-convex shape along a rotation direction of the refrigerant on the discharge path. In the compressor, the farther it is from a discharge hole along a rotation direction of the refrigerant, the greater the depth of a first groove portion formed in an oil separator is. As a result, the oil contained in the refrigerant is separated.

Abstract: An oil separator device includes at least a first chamber and a second chamber. An air-oil mixture may enter the body via the first chamber and may impact one or more interior surfaces within the body thereby causing at least a portion of the oil to be separated from the air-oil mixture. The separated oil may be directed to an oil reservoir and permitted to exit the body via an oil outlet. The remainder of the air-oil mixture may be directed toward the second chamber and be permitted to exit the body as working air via an outlet in communication with the second chamber. The oil separator device may include one or more baffles disposed between one or more of the first chamber, the second chamber, and the oil reservoir. A connector tube including one or more cylindrical members may facilitate communication between the first and second chambers.

Abstract: The present disclosure relates to a pump system including a pump and a liquid detection sensor or a flow sensor for sensing liquid presence or liquid flow. The water pump system also includes a controller that interfaces with the liquid detection sensor or flow sensor and uses data from the liquid detection sensor or the flow sensor to prevent the pump from being damaged under a run-dry condition.

Abstract: Improvements in a cooling fan are disclosed where power to the fan is provided by the Ethernet connection. The fan module is connected to the Ethernet such that power to the fan is from a portion of the power to the Ethernet is stolen or otherwise parasitically harvested. Depending upon the available Ethernet power, the fan can be powered directly, or from a storage supply such as a battery. The speed of the fan can also be adjusted based on a local temperature sensor. Measuring a local temperature provides the best indicator for when air movement and air volume is needed. The temperature sensor can be located on a specific device, housing or in the air around the fan. Fan speed and the temperature to be communicated to other devices or a host over the Ethernet or to a cloud-based application or database.

Abstract: A wheel includes a hub portion configured to rotate about a rotational axis. A plurality of blades extends radially outward from the hub portion. Each blade of the plurality of blades includes a leading edge and a trailing edge. The hub portion and the plurality of blades include a substrate metal that includes aluminum or an alloy thereof. The substrate metal of the plurality of blades has coated directly thereon a first coating layer including electroless nickel-phosphorous. The first coating layer has coated directly thereon a second hard coating layer that overlies the leading edges of the plurality of blades and that is formed of a physical vapor deposition-compatible material.

Abstract: Disclosed is a rotor for a compressible fluid pump, in particular a blood pump that can be introduced into a patient's body through a blood vessel; said rotor comprises one or more impeller elements, is compressible and expansible between an expanded state and a compressed state, is made at least in part of a fiber-reinforced plastic material, is provided for rotating about an axis of rotation, and is characterized in that in the expanded state of the rotor, a first percentage, i.e. more than 30%, in particular more than 50%, of the fibers runs substantially straight between the first end (10a, 11a, 13a) thereof lying closest to the axis of rotation and a second end lying further away from the axis of rotation. According to the invention, the rotor retains its shape very well even when subjected to repeated mechanical stress.

Abstract: A turbomachine includes an annular casing, a fan disposed inside the annular casing and mounted for rotation about an axial centerline, and an airfoil. The fan includes fan blades that extend radially outwardly toward the annular casing. The airfoil includes a composite core having a pressure sidewall and a suction sidewall extending between a core leading edge and a core trailing edge and a leading edge protective wrap. The fan has an average chord fan width according to a first performance factor. The fan has a quantity of fan blades according to a second performance factor.

Abstract: A turbomachine includes an annular casing and a fan disposed inside the annular casing and mounted for rotation about an axial centerline. The fan includes fan blades that extend radially outwardly toward the annular casing. The fan has an average chord fan width according to a first performance factor. The fan has a quantity of fan blades according to a second performance factor.

Abstract: A turbomachine includes an annular casing and a fan disposed inside the annular casing and mounted for rotation about an axial centerline. The fan includes fan blades that extend radially outwardly toward the annular casing. The fan has an average chord fan width according to a first performance factor. The fan has a quantity of fan blades according to a second performance factor.

Abstract: A housing for a rotary machine includes a support sleeve extending along a central axis of the rotary machine, a volute portion defining a duct in the housing, and a variable lattice structure in an interior of the housing. The variable lattice structure includes a first region of the housing having a first lattice structure and a second region of the housing having a second lattice structure. The second lattice structure of the second region is denser than the first lattice structure of the first region. The second region is an energy containment region of the housing configured to contain internal energy.

Abstract: A fan assembly includes a volute and a fan wheel. The volute includes a volute body and a volute tongue connected at an opening of the volute body. The fan wheel is arranged at least partially in the volute body. The volute tongue includes a flow diffusion portion and a flow-passing part. The flow-passing part is located at two sides of the flow diffusion part in an axial direction of the fan wheel. The flow-passing part is located at a higher position than the flow diffusion part.

Abstract: A high-speed booster fan module is provided, including an air duct, and an air inlet and an air outlet which are communicated to the air duct. In the present disclosure, the air flow achieves boosting and speeding up under cooperation between the air-driving fan blade group and the boosting mechanism; the air flow is collectively gathered by guidance of the flow guide member, thereby effectively improving the utilization rate of the air flow; and finally, the air flow is blown outwards after being secondarily boosted through the rectifying and boosting hood and subjected to turbulence removal, so that a wind speed and an air supply distance are greatly increased, an effect of silence and noise reduction is achieved.

Abstract: Provided is a turbo compressor including a compressed gas inlet through which a gas is sucked in, an impeller for compressing the gas introduced through the compressed gas inlet, a compressed gas outlet through which the gas compressed by the impeller is discharged to the outside, a compression unit including a compressed gas channel connected from the compressed gas inlet to the compressed gas outlet, a motor including a rotating shaft having an end coupled to the impeller, to rotate the impeller, a housing including a motor accommodation space for accommodating the motor, a cooling air channel provided to pass through the motor accommodation space and formed to circulate a cooling gas accommodated therein, a cooling water channel formed to circulate a cooling liquid capable of cooling the housing, and thrust bearings disposed at an end of the rotating shaft, wherein the cooling water channel includes bearing cooling water channels disposed within a predetermined distance from the thrust bearings to cool the

Abstract: Disclosed herein are pistons for transferring a force perpendicular to a length of a cylinder in which the piston is arranged. The pistons may include an outer structure including a piston face configured to transfer the force, a piston wall configured to align parallel with and proximate to a cylinder wall of the cylinder, and the piston face and piston wall defining an internal volume of the piston. Further, the pistons may also include a inner structure. The outer and inner structures can bound hollow spaces within the piston. The inner structure can also include a discharge hole or a pair of intersecting crossing members.

Abstract: A soft actuator includes an inflatable arm having a plurality of inflatable pouches, a common fluid channel in fluid communication with and configured to provide a pressurized fluid to the plurality of inflatable pouches, a plurality of valves in fluid communication with the common fluid channel and the plurality of inflatable pouches. At least one sensor in communication with at least one of the plurality of inflatable pouches is include and the common fluid channel, the plurality of valves and the at least one sensor are configured to selectively inflate the plurality of inflatable pouches.

Abstract: A pump calibration system includes a hydraulic pump of a variable capacity type, a regulator that changes a discharge capacity according to a command signal, an unloader valve having a variable opening degree, a pressure sensor that measures a discharge pressure, and a control device that controls the discharge capacity and calibrates a pump characteristic. The control device stores a first reference pressure detected by the pressure sensor when a first reference signal is output under a measurement condition in which the opening degree of the unloader valve is fixed and the pump is driven to rotate a predetermined amount, and when a calibration condition is satisfied, changes the command signal so that the discharge pressure becomes the first reference pressure, and calibrates the pump characteristic on the basis of a first actual signal that is the command signal with which the discharge pressure is the first reference pressure.

Abstract: A control system for a mobile agricultural machine having a hydraulic supply system which includes electronic load sensing and headland control assistance is configured to predictively adjust the pump supply when a headland sequence is initiated. The pump supply may be increased irrespective of the reported hydraulic load at the time the headland sequence is initiated to meet a predicted hydraulic demand of the headland sequence. The control system may revert to a load-sensing-based control of the pump supply after a given time period or in dependence on a predefined operational parameter being met. A corresponding method of controlling a hydraulic system on an agricultural mobile machine is also disclosed.

Abstract: The present disclosure provides an apparatus and system for efficient transfer of a fluid from one vessel to another, such as from a distribution center to a large tank on a truck. The apparatus includes a vane housing surrounding an inner pipe with an outer space formed therebetween, where the outer space includes a vane with a plurality of flutes.

Abstract: A removable coupling device and method for coupling panels of a modular panel system includes a at least one cooperative housing portion defining a housing recess configured to receive an associated frame of an associated panel and a rotational locking member movably disposed on the at least one cooperative housing portion to selectively lock an angular position between the at least one cooperative housing portion and the associated frame. The rotational locking member axially movable between a first axial position wherein the rotational locking member prevents relative rotation between the at least one cooperative housing portion and the associated frame and a second axial position wherein the rotational locking member allows relative rotation between the at least one cooperative housing portion and the associated frame.

Abstract: A modular panel system, kit and method includes a first panel and a second panel removably connected to the first panel. Each of the first and second panels includes end edge portions spaced apart from one another to define a panel length, and lateral edge portions spaced apart from one another to define a panel width with each of the lateral edge portions extending from one of the end edge portions to the other of the end edge portions. The panel length and panel width of the second panel are, respectively, the same as the panel length and panel width of the first panel. The first and second panels are configured to be removably coupled to one another by having respective edge portions of each of the first and second panels arranged longitudinally adjacent to one another and removably coupled together.

Abstract: Methods and apparatuses for joining components are provided. A first component, such as a diecast aluminium component is provided having a joining region configured to arrange and fasten a second component. An adhesive layer is produced along the joining region via a thermal spaying process such as cold gas dynamic spraying. The second component is fastened to the adhesive layer by joining via laser welding using energy input indirectly via the second component.

Abstract: A furniture assembly includes a panel, a fitting member and a connecting member. The connecting member is detachably mounted to the fitting member. The fitting member is configured to be mounted to the panel through the connecting member. The present invention also provides a furniture system.

Abstract: Methods and blind fasteners with EME protection are provided. A blind fastener comprises a shank having a bulb forming portion; a head; and an electromagnetic effects (EME) protection sealant positioned on at least one of the bulb forming portion of the shank or under the head.

Abstract: A self-drilling self-tapping fastener that provides improved performance in both drilling time and pullout force without decreasing performance in any of ductility, tapping torque, torsional strength, and tension strength.

Abstract: An assembly system for an internal combustion engine system includes a first fastener having a first characteristic, a second fastener having a second characteristic that is different than the first characteristic, and a casting forming a component of the internal combustion engine system, the casting defining a surface. The assembly system also includes a first hole and a second hole each formed in the casting, a first diameter of the first hole being substantially the same as a second diameter of the second hole such that the first fastener is insertable into the first hole and into the second hole. The assembly system also includes a first indicator cast together with the surface, the first indicator having a first feature that indicates the first characteristic, and a second indicator cast together with the surface, the second indicator having a second feature that indicates the second characteristic.