Abstract: A control system is applied to an internal combustion engine having a plurality of cylinders, a variable compression ratio changer configured to change the compression ratio of each of the cylinders of the internal combustion engine individually, in-cylinder injection valves that inject fuel into the respective cylinders, and in-passage injection valves each of which injects fuel into an intake passage corresponding to each of the cylinders. To reduce differences in the air-fuel ratio among the cylinders during changing the compression ratio, the control system makes the proportion of the quantity of fuel injected through the in-passage injection valves to the total quantity of fuel injected through the in-cylinder injection valves and the in-passage injection valves larger during the time in which the compression ratios of all the cylinders are being changed than during the time in which the compression ratios of all the cylinders are fixed.

Abstract: A method for controlling an exhaust gas treatment system is provided. The exhaust gas treatment system includes an exhaust gas stream supplied by an exhaust gas source to a selective catalytic reduction device and a particulate filter device. Additionally or alternatively, the exhaust gas treatment system includes an exhaust gas stream supplied by an exhaust gas source to a selective catalytic reduction filter device. The method comprises initiating a selective catalytic reduction device service in response to a reductant dosing adaptation. The method can further include satisfying a secondary condition prior to initiating a selective catalytic reduction device service. The device service can include increasing the exhaust gas temperature or initiating an active regeneration of the particulate filter device.

Abstract: To provide an internal combustion engine control device (100) in which a control unit (107b) controls an operating condition of an internal combustion engine (1) based on a difference ?TCC between a first temperature TCC corresponding to the temperature of a first portion in a wall defining a combustion chamber of the internal combustion engine (1), and a second temperature TE corresponding to the temperature of a second portion on an outer wall surface side than the first portion in the wall.

Abstract: Methods and systems are provided for adjusting an amount of water injected upstream of a group of cylinders based on a determined maldistribution of water among cylinders during a water injection event. In one example, a method may include injecting a first amount of water upstream of a first group of cylinders and a different, second amount of water upstream of a second group of cylinders based on operating conditions of the respective cylinder groups. Further, the method may include adjusting water injection and engine operating parameters in response the evaporated and/or condensed portion of water.

Abstract: An exhaust emission control system of an engine including a NOx catalyst disposed in an exhaust passage and for storing NOx within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored NOx when the air-fuel ratio is approximately stoichiometric or rich, is provided. The system includes a SCR catalyst disposed downstream of the NOx catalyst and for purifying NOx by causing a reaction with ammonia, and a processor configured to execute a NOx reduction controlling module for controlling the air-fuel ratio to a target ratio so that the stored NOx is reduced. The controlling module limits the performance of the NOx reduction control when a temperature of the SCR catalyst is above a given temperature and loosens the limitation in a given engine operating state in which an exhaust gas flow rate is above a given rate despite the SCR catalyst temperature.

Abstract: An exhaust emission control system of an engine, including an NOx catalyst disposed in an exhaust passage for storing NOx within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored NOx when the air-fuel ratio is approximately stoichiometric or rich, is provided. The system includes an SCR catalyst disposed in the exhaust passage downstream of the NOx catalyst and for purifying NOx within exhaust gas by causing a reaction with ammonia, a controller executing a NOx reduction controlling module for executing a control in which the air-fuel ratio is controlled to a target air-fuel ratio so that the stored NOx is reduced, and an ammonia adsorption amount acquiring module for acquiring an ammonia adsorption amount of the SCR catalyst by detection or estimation. The NOx reduction controlling module controls the target air-fuel ratio to be leaner as the ammonia adsorption amount increases.

Abstract: A method of operating a fuel tank system in a non-hybrid vehicle is provided. The fuel tank system has a fuel tank, a carbon canister, a canister vent valve, a vapor management valve and an isolation valve fluidly connected between the fuel tank and the carbon canister. The fuel tank system is operated in a pressurized mode wherein the fuel tank is pressurized and the isolation valve is closed. The method determines whether a leak has been detected. The fuel tank system is operated in a non-pressurized mode based on the leak being detected.

Abstract: A diagnostic device for a sensor 100 provided in an exhaust passage 11 of an internal combustion engine 10 of a vehicle and detecting nitrogen compounds in exhaust gas, the diagnostic device including an offset diagnosis unit 42 which diagnoses, during deceleration of the vehicle in which the internal combustion engine 10 stops fuel injection, an offset amount of a sensor value of the sensor 100 from a zero point based on the sensor value of the sensor value, and a diagnosis prohibition unit 44 which prohibits the diagnosing of the offset amount when a flow rate of the exhaust gas of the internal combustion engine 10 rapidly increases while the offset amount is diagnosed by the offset diagnosis unit 42.

Abstract: System and method for learning an intake oxygen concentration of an engine. In one embodiment, the system includes an intake oxygen sensor and an electronic control unit. The intake oxygen sensor is configured to measure an oxygen concentration of intake air and output a signal indicative of an intake oxygen concentration value. The electronic control unit is configured to receive the signal indicative of the intake oxygen concentration value, determine whether fuel is being injected into an engine, determine whether the engine is operating in an over-run condition, control a valve to sweep an air pressure of an intake path of the engine across a plurality of air pressures, and store information indicative of intake oxygen concentration values across the plurality of air pressures to learn the intake oxygen concentration of the engine.

Abstract: A fuel injection valve is caused to inject fuel in a latter half of a compression stroke in such a manner that a fuel concentration immediately before start of combustion is higher in a middle portion of a combustion chamber than in an outer peripheral portion thereof in a low load range where the engine load is lower than a predetermined set reference load. An intake valve driving device is controlled in such a manner that an intake valve closing timing in the low load range is advanced on a retard side with respect to an intake bottom dead center in a case where the engine speed is high, as compared with a case where the engine speed is low, and intake air within a cylinder is blown back toward an intake port at least in a range where the engine speed is low.

Abstract: An engine block assembly and method manufacturing an engine block assembly and related components. A casted engine block assembly includes a cylinder block portion. The cylinder block portion includes a plurality of cylinder block openings disposed therein, a cylinder block flange portion positioned at a top of the cylinder block portion and a cylinder block crankcase portion disposed at a base of the cylinder block. The cylinder block flange portion is configured for coupling the cylinder block to a cylinder head. The cylinder block portion includes a plurality of cylinder block walls extending between the cylinder block flange portion and the cylinder block crankcase portion and positioned about the plurality of cylinder block openings. The cylinder block walls house a plurality of internal channels. The plurality of cylinder block walls are void of enclosed openings extending through at least one of the cylinder block walls in the plurality of cylinder block walls.

Abstract: An internal combustion engine includes a component configured to be subjected to combustion gasses, the component includes a substrate presenting a surface and a coating applied to the surface of the substrate. The coating includes an insulating layer applied to the surface having a plurality of microspheres and a sealing layer bonded to the insulating layer and seals against the insulating layer.

Abstract: Provided is a piston of an internal combustion engine that can reduce a fluid lubrication frictional coefficient on an outer peripheral surface of a skirt portion. The piston of the internal combustion engine includes at least one electrodeposited film on the outer peripheral surface of the skirt portion that is slidably moved relative to an inner wall of a cylinder.

Abstract: A radiation thermal absorber based on characteristic absorption spectrum, a Stirling engine and an operation method thereof. The radiation thermal absorber allows working gas in the Stirling engine to absorb radiation heat quickly, and help the Stirling engine adopt assistant heating to ensure steady operation when solar power is not enough. The radiation thermal absorber includes a heater base, a radiation energy conversion device, heating tubes, a combustion chamber and valves of the heating tubes. The radiation energy conversion device converts the solar energy into radiation energy near a characteristic absorption peak of the working gas, and the working gas absorbs the radiation directly in depth.

Abstract: A combined heat and power system includes a liquid-cooled internal combustion engine, an air-cooled alternator, an air-to-water heat exchanger, and a coolant-to water heat exchanger. The liquid-cooled internal combustion engine includes a liquid cooling system configured to cool the engine with coolant thereby heating the coolant. The air-cooled alternator is configured to be driven by the internal combustion engine to produce electricity. The alternator includes an air cooling system configured to cool the alternator thereby heating air. The air-to-water heat exchanger is configured to receive heated air and water in a heat exchange relationship to preheat the water and cool the air. The coolant-to-water heat exchanger is configured to place heated coolant and preheated water from the air-to-water heat exchanger in a heat exchange relationship to further heat the water and cool the coolant. The coolant-to-water heat exchanger provides heated water to the housing water outlet.

Abstract: There is provided an actuator for use in a thrust reverser of an aircraft, comprising a screw shaft and a nut translatable along the shaft between a retracted position and an extended position, a tine component comprising tine fingers formed with projections that are configured to engage formations on the nut when the nut occupies its retracted position to secure the nut against axial movement, and a movable lock member engageable with the tine fingers to restrict radial movement of the tine fingers in a first position, the lock member movable between the first position and a second position in which the lock member does not restrict radial movement of the tine fingers. The lock member is movable between the first position and the second position by means of an electromagnetic actuator.

Abstract: A thrust reverser system for a gas turbine engine includes a support structure, a transcowl, a door, a main actuator, and an assist actuator. The transcowl is mounted on the support structure and is axially translatable between a stowed position and a deployed position. The door is pivotally coupled to the support structure and is rotatable between at least a first position and a second position when the transcowl translates between the stowed position and the deployed position, respectively. The main actuator is configured to supply an actuation force to the transcowl to thereby move the transcowl between the stowed and deployed positions. The assist actuator is coupled to the door, and is configured to supply an actuation assist force to the door and, upon rotation of the door to an intermediate position between the first position and the second position, to commence load sharing with the main actuator.

Abstract: A coupling e.g. for an actuator, comprises a housing which is preferably in the form of a ring mounted around the end of the outer rod and which can be mounted to a component e.g. a cowl being deployed. Within the housing of the coupling is provided a ring disk. This is sized and arranged within the housing such that there is some clearance between the ring disk and the housing so as to permit some eccentric movement.

Abstract: A gas turbine engine includes a core engine assembly including a compressor section communicating air to a combustor section where the air is mixed with fuel and ignited to generate a high-energy gas flow that is expanded through a turbine section. The turbine section is coupled to drive the compressor section. A propulsor section aft of the core engine is driven by the turbine section. An exhaust duct routing exhaust gases around the propulsor section. The exhaust duct includes an inlet forward of the propulsor section, an outlet aft of the turbine section and a passageway between the inlet and the outlet. An aircraft and exhaust duct are also disclosed.

Abstract: A liquid-fueled rocket engine assembly comprises a combustor assembly, a combustor jacket for cooling the combustor assembly using pressurized liquid fuel exiting a fuel pump, a turbine for expanding gaseous fuel exiting the combustor jacket to power the fuel pump and/or an oxidizer pump, a flow control device for directing expanded gaseous fuel exiting the turbine through a first outlet and/or a second outlet, a discharge device for exhausting the expanded gaseous fuel exiting the first outlet, a heat exchanger for cooling the expanded gaseous fuel exiting the second outlet with some of the pressurized liquid fuel exiting the fuel pump, and a mixer for combining cooled fuel exiting the heat exchanger with liquid fuel to form mixed liquid fuel to be directed into the fuel pump. Another liquid-fueled rocket engine assembly and related methods are also described.

Abstract: In a fuel injection apparatus, a movable core includes a large-diameter portion and a small-diameter portion, and a fixed core, includes a large-diameter recessed portion and a small-diameter recessed portion in which the large-diameter portion and the small-diameter portion are respectively slidable. While a coil is energized, a first magnetic circuit is formed allowing a magnetic flux to flow between a large-diameter-portion corner of a large-diameter portion and a large-diameter recessed-portion corner of a large-diameter recessed portion, and a second magnetic circuit is formed allowing a magnetic flux to flow between a small-diameter-portion corner of a small-diameter portion and a small-diameter recessed-portion corner of a small-diameter recessed portion.

Abstract: An electrolysis cell and internal combustion engine kit are provided in which water for the cell may be captured such as from engine exhaust. Water feeding from a water condenser to a water tank and from the water tank to the cell is pump free. Peltier type thermocouples are configured to provide cooling or heating for enhanced operations. Conductive level detectors detect fluid levels in various vessels of the electrolysis system.

Abstract: Methods and systems are provided for selecting a location for water injection during a water injection event based on engine operating conditions. In one example, a method may include selecting a location for water injection from each of an intake port of each cylinder, an intake manifold upstream of all engine cylinders, and directly into each cylinder based on engine operating conditions. Further, the method may include adjusting water injection at the selected location and engine operating parameters in response the evaporated and/or condensed portion of water.

Abstract: Disclosed herein are liquid containment systems, methods for making such systems, and vehicle fuel storage systems having vapor recirculation capabilities. Presented is a liquid containment system for stowing hydrocarbon-based liquids. This system includes a vapor canister coupled to a liquid container to receive hydrocarbon vapor from the container. A fill conduit coupled to the container has an opening for receiving a fill nozzle. A vapor recirculation transmits vapor from the container to the fill conduit. A multi-stage check valve, which is coupled to the container and recirculation conduit, has a housing and a plunger with a bleed hole. The plunger seats against the housing such that vapor passes from the container through the bleed hole to the fill conduit via the recirculation conduit. Responsive to increased in-tank pressure, the plunger unseats from the housing such that vapor passes through the bleed hole and around the plunger to the fill conduit.

Abstract: Vapors in the fuel tank of a vehicle are collected in a carbon canister. An ejector or aspirator is used to purge the carbon canister in a pressure-charged engine in which a positive pressure exists in the intake. A compact ejector includes a substantially planar flange and a venturi tube coupled to the flange with a central axis of the venturi tube substantially parallel to the flange. By mounting the ejector on an intake component, having the venturi tube on the inside of the intake component, and having the venturi tube parallel to the flange yields a very compact package and protects the ejector from damage from other engine components.

Abstract: An internal combustion engine generates a cleaner exhaust. A combustion chamber combusts a fuel and generates combustion products. A fuel inlet channel introduces the fuel into the combustion chamber. An air inlet channel introduces air into the combustion chamber. An outlet channel discharges the combustion products from the combustion chamber. A set of electrodes is arranged inside the internal combustion engine that generate an electric field in contact with the fuel, the air and/or the combustion products when a voltage is applied across the set of electrodes. A sensor is arranged inside the internal combustion engine that measures a combustion condition. A controller adapts the electric field based on the combustion condition. The engine generates exhaust with reduced toxicity and waste product relative to prior combustion engines by energizing a fluid mixture of fuel, air, and combustion products to improve a redox reaction causing a more complete combustion reaction.

Abstract: A temperature-controllable engine fuel supply device is used to feed fuel into a fuel inlet (40) of an engine (40). The temperature-controllable engine fuel supply device includes a fuel tank (1) for receiving the fuel, a cooling unit (2) and a nozzle (3). The cooling unit (2) communicates with the fuel tank (1) to cool the fuel. The nozzle (3) is disposed corresponding to the fuel inlet (40) to jet the fuel toward the fuel inlet (40). A cooling path (P) through which the fuel passes is from the cooling unit (2), through the nozzle (3), to the fuel inlet (40). A temperature sensor (21), (23) is installed on the cooling path (P) to detect temperature of the fuel, so temperature of the fuel is controlled to be within an ideal range before the fuel enters the engine (4).

Abstract: The present invention relates to a device (1) for the thermal management of the intake air of an internal combustion engine (3) equipped with a turbocharger (5), said device comprising: a first heat exchanger (7) placed in the air intake circuit (9), a second heat exchanger (10) placed on the main exhaust line (12) and connected to the first heat exchanger (7) to form a heating loop (A), said thermal management device (1) furthermore comprising a so-called low-pressure exhaust gas recuperation system (14), comprising a first take-off (141) placed downstream of the turbine (5b), an outlet (142) placed upstream of the compressor (5a), and a control valve (140), the second heat exchanger (10) being placed between the turbine (5b) and the first take-off (141), the main exhaust line (12) comprising a take-off branch (26) between a second take-off (201) placed on the main exhaust line (12) upstream of the second heat exchanger (10), a take-off device (200) able to manage the circulation of the exhaust gases, and

Abstract: Some gasoline engines have a high-pressure fuel pump that is driven by a rotating component of the engine such as the camshaft or crankshaft. In the event of a crash, the fuel lines coupled to the engine should remain intact to avoid fuel spillage. It is known in the prior art to provide a separate bracket to provide the protection. However, such bracket is a separate piece that must be separately assembled, coupled to components of the engine requiring mounting holes, and adds to the part count of the engine. By integrating a deflector with a fuel pump component, the bracket is obviated.

Abstract: A fuel pump includes: an outer gear; an inner gear that is meshed with the outer gear and includes a receiving hole; a rotatable shaft; a contact portion that is formed to be contactable with the receiving hole; and a pump housing that rotatably receives the outer gear and the inner gear and includes a first housing component and a second housing component, between which the inner gear is held in the axial direction. At least one of the receiving hole and the contact portion includes a tilt surface, which is tilted relative to the axis direction. When the rotatable shaft is rotated to a drive rotation side, the receiving hole contacts the contact portion through the tilt surface, so that the receiving hole is urged in a circumferential direction and is also urged toward the first housing component in the axial direction.

Abstract: A tank lid includes: a lid main body that covers an opening portion of a fuel tank; a metal terminal that is for electrical driving and penetrates through the lid main body between an inside and an outside of the fuel tank; a connector that includes an outer tubular portion, which projects from a lid front surface to the outside of the fuel tank, while a bottomed tubular inner surface of the outer tubular portion surrounds the metal terminal; and a resin coating film that is acid resistant and is dielectric. The resin coating film is formed by dry coating through chemical vapor deposition on: an outer exposed surface of the outer tubular portion, which includes the bottomed tubular inner surface of the outer tubular portion as a surface exposed to the outside of the fuel tank; and the lid front surface.

Abstract: Examples are provided for switching an engine fuel supply. One example system includes a direct-injection engine including a cylinder, an LPG tank for storing a LPG fuel, a CNG tank for storing a CNG fuel, a gas switching valve, a high-pressure pump connected between the LPG tank and the gas switching valve, a pressure-limiting valve connected between the CNG tank and the gas switching valve, a fuel distributor configured to be supplied with one or more of the LPG fuel and the CNG fuel via the gas switching valve, an LPG injection valve coupled to the cylinder, a CNG injection valve coupled to the cylinder, the LPG injection valve and the CNG injection valve configured to be supplied with fuel via the fuel distributor; and a controller configured to control the gas switching valve depending on an aggregate state of the fuel disposed in the fuel distributor.

Abstract: A fuel injector has a seat and at least one seat passage. The seat includes an outer tip surface through which the seat passage extends. Fin structure is provided in the outer tip surface and is constructed and arranged to increase a surface area of the outer tip surface as compared to a surface area of the outer tip surface absent the fin structure. The outer tip surface, including the fin structure, is constructed and arranged to be heated by combustion gases so that the outer tip surface reaches a temperature greater than a temperature that the outer tip surface would reach absent the fin structure, so as to cause evaporation of fuel that contacts the outer tip surface.

Abstract: A fuel injector 100 includes a nozzle member 60 having a fuel passage 60a leading to an injection port 60b; a valve main body 51 adapted to reciprocate for opening and closing the fuel passage 60a; an elastic portion 56 elastically deformable in closing the fuel passage 60a by movement of the valve main body 51 in a closing direction, the elastic member being attached to one of the nozzle member 60 and the valve main body 51 and adapted to be abutted against the other of the nozzle member 60 and the valve main body 51 to close the fuel passage 60a by moving the valve main body 51 in the closing direction; and a stopper 70 adapted to restrict movement of the valve main body 51 in the closing direction by being abutted against the valve main body 51, the stopper 70 being formed of material different from the nozzle member 60.

Abstract: A fuel injection assembly for an internal combustion engine has a fuel injector, an injector cup and a holding element for securing the fuel injector in the injector cup, wherein the fuel injector has an annular groove defined in part by an annular flange having a profiled peripheral surface engageable by a profiled surface on the arms of a holding element when the fuel injector is secured to the injector cup, to provide a line or point contact between the fuel injector and the holding element.

Abstract: A device and a method are provided for determining a stroke of an armature of a magnetic valve which has a coil and the armature is displaceable by magnetic force, including: providing at least one reference data set which includes a magnitude of a current through the coil and a magnitude of the magnetic flux in the case of a known magnitude of the stroke; generating a current flow through the coil of the magnetic valve in order to generate a magnetic field for generating a magnetic force on the armature, which magnetic force displaces the armature in the direction for the opening of a closure element coupled to the armature; determining a magnitude of the magnetic flux when the armature abuts against a driver of the closure element; and determining the magnitude of the stroke based upon the determined magnitude of the magnetic flux and the reference data set.

Abstract: An exemplary embodiment of the present disclosure relates to a construction machine starting assist system including: an engine of a construction machine; an input unit which receives a key-on signal and a key-off signal of the engine; a hydraulic pump which is operated by the engine; an actuator which is operated by hydraulic oil discharged from the hydraulic pump; a regeneration valve which is switched so that a part or an entirety of the hydraulic oil returned from the actuator and a part or an entirety of the hydraulic oil discharged from the hydraulic pump are supplied for regeneration; an accumulator which is charged with the hydraulic oil supplied from the regeneration valve; a charging valve which is controlled so that the hydraulic oil is discharged from the accumulator when the key-on signal is inputted into the input unit; and a hydraulic motor which is operated by the hydraulic oil discharged from the charging valve, in which the hydraulic motor is connected to the engine and assists in starting t

Abstract: According to some aspects, methods and systems are presented to reduce noise, vibration, and harshness during start or restart of an engine. In some embodiments, a torque source such as an electric machine provides a torque to an internal combustion engine during restart to counteract vibrations of the system caused by the output torque of the internal combustion engine. The torque provided by the torque source can be expressed as a sum of a non-linear component and an input shaped component. A perturbation technique can be utilized for separating the scales and isolating the non-linear response of the system. Command shaping can be applied to the remaining, linear response of the system. Parameters used in the modeling of the internal combustion engine and the system may be pre-determined based on vehicle design and operating conditions, or may be iteratively estimated based on previous restarts during vehicle operation.

Abstract: An ignition control system is applied to an internal combustion engine having an ignition coil, a switching element and a measurement detection part which detects at least one of a primary and a secondary voltages and a secondary current. The ignition coil has a primary coil and a secondary coil. The switching element performs conduction and interruption the primary current to the primary coil. The ignition control system has a primary current control unit generating a spark discharge at the ignition plug by passing the primary current through the primary coil, and perform interruption of the primary current, and a discharge short-circuiting determination part determining a generation of discharge short-circuiting based on a measured value. The primary current control unit generates the spark discharge again when discharge short-circuiting occurs.

Abstract: A method for preventing back fire of an engine by a device for preventing back fire of an engine, may include monitoring operating information of the engine; determining whether the back fire occurs by using the operating information of the engine; and controlling an ignition timing to be retarded when the back fire occurs as the determination result.

Abstract: A plasma jet plug includes: a tubular insulator having an axial hole; a center electrode disposed inside the axial hole; metal shell disposed on an outer circumference of the insulator; and an orifice electrode electrically connected to the metal shell and disposed on a front side of the insulator. A plasma generating cavity is formed by a surface of the center electrode, an inner surface of the insulator, and an inner surface of the orifice electrode. In the plasma jet plug, a shortest path length D1 of a surface path is greater than or equal to 5 times an aerial gap G, where the surface path extends, inside the cavity, from a surface of the center electrode via an inner surface of the insulator to an inner surface of the orifice electrode, and the aerial gap G is a shortest distance between the center electrode and the orifice electrode.

Abstract: An ignition apparatus for an internal combustion engine provided with an ignition coil and a spark plug. An ECU enables operation of a plurality of continuous discharges in the spark plug and also detects a flow speed of a combustible air/fuel mixture. In a first discharge, a supply of a primary current terminates the first discharge, with energy remaining in the ignition coil, from an initiation of the ignition to an initiation of the spark plug, when the detected flow speed exceeds a predetermined first threshold. Thereafter, a second discharge is performed by shutting off the primary current.

Abstract: A water flow power generator includes a nacelle, a vane wheel that is disposed so as to be rotatable relative to the nacelle, and that is rotated by a water flow while including a plurality of blades, a power generator that is disposed inside the nacelle, and that generates electric power by using rotating power transmitted from the vane wheel, and a vane wheel rotation stopping mechanism that is disposed in the nacelle, that includes a rod which can enter the inside of a rotational trajectory of the vane wheel, and that stops the rotation of the vane wheel.

Abstract: Three controls, three variable gear assemblies, an optional hatch or variable propeller pitch, and a variable overlap generator (VO generator), as well as one or more commutator and brushless free direct current generators may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed in a plurality of embodiments useful in wind power generation and water renewable energy generators for any of tidal and ocean current or wave conditions. Two Transgear™ assemblies side-by-side and sharing the same central shaft may comprise a constant speed motor control, produce required constant frequency and voltage and be reduced in part count and complexity.

Abstract: A wind turbine blade includes a blade body; and a vortex generator mounted to a surface of the blade body. The vortex generator includes a plurality of fin sets, each fin set including a plurality of fins disposed to protrude from the surface of the blade body at different positions from one another in a blade spanwise direction. The plurality of fin sets is positioned so that, in a planar development view of the surface of the blade body, an angle ? formed by a center axis of a blade root of the blade body with a line connecting two of the fin sets which are adjacent in the blade spanwise direction increases toward the blade root, at least in a part of a region of the blade body between a position of the blade root and a maximum chord-length position of the blade body in the blade spanwise direction.

Abstract: The present disclosure is directed to a vortex generator configured for mounting to either of a suction side or a pressure side of a rotor blade. The vortex generator includes a base portion having a contour in an uninstalled state that substantially aligns with or conforms to a contour of a plurality of locations of either on the suction side or the pressure side of the rotor blade. Further, the vortex generator includes a protrusion member extending upwardly from the base portion. The protrusion member includes a plurality of tines separated by at least one slit. Moreover, the base portion and the protrusion member are constructed of a rigid material. In addition, the vortex generator includes a flexible coating material configured at least partially around the base portion and/or within or around the at least one slit.

Abstract: A system for locating airflow modifiers for installation on wind turbine rotor blades may generally include a plurality of airflow modifiers, with each airflow modifier including a base defining an outer profile that differs from the outer profiles of the remainder of the airflow modifiers. The system may also include a blade shell defining an exterior surface. The base of each airflow modifier may be configured to be coupled to the exterior surface of the blade shell. In addition, the system may include an installation template provided on the exterior surface of the blade shell. The installation template may define a different installation location for each of the airflow modifiers. Moreover, the installation template may include a geometric feature at each installation location that at least partially matches the outer profile of the airflow modifier configured to be installed at such installation location.

Abstract: A wind turbine including a plurality of substantially similar vertically extending blades with a semi-circular profile, wherein each of such blades is divided into two adjacent compartments; an upper plate; a lower plate; and an electric generator with a gear box. The wind turbine may also include a braking mechanism to control the rotational speed of the blades such that the produced electrical parameters are below the rated characteristics of the electric generator.

Abstract: Various fluid turbine systems and methods are described. The turbine can be a vertical axis wind turbine configured to generate power from wind energy. The turbine system can have a blade assembly. The blade assembly can have a plurality of blades rotatable about an axis. The turbine system can have a concentrator positionable upwind and in front of a return side of the blade assembly. The concentrator can define a convex surface facing the wind. The turbine system can also have a variable concentrator positionable upwind of a push side of the blade assembly. The variable concentrator can be adjustable between a first position and a second position, the variable concentrator being capable of deflecting more wind toward the turbine in the first position than in the second position.

Abstract: A method for automatically updating data associated with a wind turbine based on component self-identification may generally include providing instructions for transmitting a polling signal to an identification sensor associated with a wind turbine component and, in response to the transmission of the polling signal, receiving current configuration data for the wind turbine component from the identification sensor. The method may also include comparing the current configuration data received from the identification sensor to last-known configuration data for the wind turbine component and automatically updating one or more parameter settings associated with operating the wind turbine based on any differences identified between the current configuration data and the last-known configuration data.