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2876results about "Engine starters" patented technology
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Method and arrangement for control of direct current motor
InactiveUS7567045B2Efficient coordinationLow costVehicle seatsMultiple motor speed/torque controlTelecommunications linkControl signal
Owner:KONGSBERG AUTOMOTIVE AB (SE)
Event based engine control system and method
A system for an engine of a vehicle, comprising of a cylinder of the engine; a first injector configured to inject a first substance to said cylinder; a second injector configured to inject a second substance to said cylinder; and a controller configured to perform injection from said first and second injector in response to a number of combustion events from an engine start.
Owner:FORD GLOBAL TECH LLC
Method and apparatus to optimize engine warm up
InactiveUS20080262694A1Reduce energy lossPower Loss MinimizationAnalogue computers for vehiclesElectrical controlEngineeringInternal combustion engine
There is provided a method and an apparatus to minimize energy loss of an internal combustion engine during engine warm-up. This includes monitoring engine operating conditions, and estimating a future energy loss. A power loss and a rate of change in the estimated future energy loss are determined. An engine control scheme effective to minimize the power loss and the rate of change in the estimated future energy loss is executed during the engine warm-up.
Owner:GM GLOBAL TECH OPERATIONS LLC
Fuel injection system and method
InactiveUS6959693B2Electrical controlCoolant flow controlCombustion chamberInternal combustion engine
A fuel injection system includes a first fuel injector that injects a lower-octane fuel into a combustion chamber of an internal combustion engine, and a second fuel injector that injects a higher-octane fuel into an intake passage of the engine. When the engine temperature is equal to or lower than a predetermined temperature during a start-up period of the internal combustion engine, fuel having the lower octane is injected via the first injector while prohibiting injection of the higher octane fuel via the second fuel injector.
Owner:TOYOTA JIDOSHA KK
Low drag ducted Ram air turbine generator and cooling system
InactiveUS6270309B1Efficient extractionEnergy efficiencyPump componentsWind motor controlRam air turbineElectric generator
A low drag ducted ram air turbine generator and cooling system is provided. The ducted ram air turbine generator and cooling system has reduced drag while extracting dynamic energy from the air stream during the complete range of intended flight operating regimes. A centerbody / valve tube having an aerodynamically shaped nose is slidably received in a fairing and primary structure to provide a variable inlet area. An internal nozzle control mechanism attached to the valve tube positions nozzle control doors to provide variable area nozzles directing air flow to the turbine stator and rotor blades to maintain optimum generator efficiency. An alternate embodiment includes an annular internal nozzle having interleaved panels to modulate the air flow to the turbine.
Owner:GHETZLER AERO POWER CORP
Fuel injection system and method
InactiveUS20050109319A1Sufficient engine startabilityReduce smoke emissionsElectrical controlCoolant flow controlCombustion chamberEngineering
A fuel injection system includes a first fuel injector that injects a lower-octane fuel into a combustion chamber of an internal combustion engine, and a second fuel injector that injects a higher-octane fuel into an intake passage of the engine. When the engine temperature is equal to or lower than a predetermined temperature during a start-up period of the internal combustion engine, fuel having the lower octane is injected via the first injector while prohibiting injection of the higher octane fuel via the second fuel injector.
Owner:TOYOTA JIDOSHA KK
System and method for extracting power from fluid using a tesla-type bladeless turbine
InactiveUS20100129193A1Reduce lossesOptimal longitudinal spacingWind motor controlPump componentsSurface oceanViscous shear
Smooth, preferably variable-sweep fluid collection device surfaces disposed into opposition with wind, river, surf, ocean or tidal currents generate enhanced velocity fluid flows at length driven into onboard work-extracting disc turbines at advantageous angles of attack. Keyed to shafts turning freely through optionally extendable volutes, disc turbines comprising a dense population of smooth, axially fixed or adjustably spaced discs conducting preferably laminar flow between adjacent elements develop significant torque through boundary layer adhesion and viscous shear-stress between fluid layers. Exhaust of disc turbine throughput into divergent channels drafting into external currents of initially higher than ambient velocity and lower pressure may reduce turbine discharge backpressure, rapidly clear system throughput, and allow normally disadvantageous drag to be utilized to develop greater work generation. Gainfully turning with, instead of at odds to natural or anthropogenic currents provided, disc turbines utilized as disclosed may provide unprecedented renewable energy from fluids in motion.
Owner:SHERRER GORDON DAVID
Method and system for reducing the impact on the performance of a turbomachine operating an extraction system
ActiveUS20110110759A1Improve efficiencyImpact performance becomes reducedWind motor controlGas turbine plantsWorking fluidControl system
A method and system for increasing the efficiency of a turbomachine having an extraction system is provided. The extraction system may have multiple extraction ports from which the working fluid of the turbomachine is extracted to meet extraction load requirements of an independent process. The method and system may enable a control system to optimally determine the which extraction ports to draw the working fluid from for meeting the extraction load requirement. The optimal location may be determined by utilizing the data on the load requirement, where the extraction load requirement may be operationally distinct from the turbomachine load.
Owner:GENERAL ELECTRIC CO
Mold pump assembly
ActiveUS20140044520A1Easy to tunePrecise flow controlSpecific fluid pumpsPump componentsImpellerEngineering
A molten metal pump assembly (10) and method to fill complex molds with molten metal, such as aluminum. The pump assembly includes an elongated shaft (16) connecting a motor (14) to an impeller (22). The impeller is housed within a chamber (18) of a base member such that rotation of the impeller draws molten metal into the chamber at an inlet (48) and forces molten aluminum through an outlet (50). A first bearing (36) is adapted to support the rotation of the impeller at a first radial edge (32) and a second bearing (38) is adapted to support the rotation of the impeller at a second radial edge. A bypass gap (60) is interposed between the second bearing and the second radial edge. Molten metal leaks through the bypass gap at a predetermined rate to manipulate a flow rate and a head pressure of the molten metal such that precise control of the flow rate is achieved.
Owner:PYROTECK INC
System and method for loads reduction in a horizontal-axis wind turbine using upwind information
A system and method provide a proactive mechanism to control pitching of the blades of a wind turbine to compensate for rotor imbalance during normal operation by pitching the blades individually or asymmetrically, based on turbulent wind gust measurements in front of the rotor, determined before it reaches the rotor blades.
Owner:GENERAL ELECTRIC CO
Stackable vertical axis windmill
A stackable, vertical axis windmill comprised of a braced external frame that enables stacking of multiple windmill assemblies. Couplings are located on both ends of the vertical rotor shaft to enable stacking and the transmission of power, an internal wind flow cavity, and controlled wind guides is described. The external frame includes structural bracing that allows for two or more windmill to be stacked one upon another to optimize the use of land or rooftop space for the generation of electricity from wind power. The computer controlled wind guides automatically close partially in high wind conditions in order to prevent damage to the windmill. The internal wind flow cavity allows wind to transfer power to both the windward and leeward rotors blades. The rotor axis is constructed so that all bearings can be replaced without dismantling the structure.
Owner:MILLER LEWIS H
Method and system for engine control
ActiveUS20150285161A1Improve fuel efficiencyImprove cooling effectHybrid vehiclesElectrical controlCombustionEngineering
Methods and systems are provided for using compression heating to heat a cylinder piston before cylinder combustion is resumed. Cylinder heating is achieved using combinations of slow unfueled engine rotation where the engine cylinders are heated via compression stroke heating, and slow compressor rotation where the cylinders are heated via compression heating. One or more intake or exhaust heaters may be concurrently operated to expedite cylinder heating.
Owner:FORD GLOBAL TECH LLC
Devices and methods of operation thereof for providing stable flow for centrifugal compressors
InactiveUS7326027B1Process stabilityAvoid adjustmentEngine manufactureWind motor controlEngineeringInjection air
Centrifugal compressor flow stabilizing devices and methods of operation thereof are disclosed that act upon the flow field discharging from the impeller of a centrifugal compressor and modify the flow field ahead of the diffuser vanes such that flow conditions contributing to rotating stall and surge are reduced or even eliminated. In some embodiments, shaped rods and methods of operation thereof are disclosed, whereas in other embodiments reverse-tangent air injection devices and methods are disclosed.
Owner:NASA
Oscillation damping of a wind turbine
ActiveUS20080118342A1Reduce and avoid undesired oscillationLess materialPropellersWind motor controlMechanical impactTurbine
The invention relates to a wind turbine and a method for operating the wind turbine planted in the floor of a body of water. The wind turbine includes a support structure and a rotor, which is arranged on the support structure. The rotor has a rotor blade. The wind turbine operates in a trundle mode in order to reduce the oscillations in the support structure created through mechanical impacts on the support structure.
Owner:SENVION DEUT GMBH
Independent sensing system for wind turbines
InactiveUS20090232635A1Preventing and eliminating propagationPermit flexibilityPropellersWind motor controlTurbineWind force
A wireless sensing device for use in a wind turbine having a sensor capable of measuring one or more parameters for wind turbine operation. The sensing device also include a transmission device capable of wirelessly transmitting one or more signals corresponding to the one or more measured parameters to a controller. An independent power source is included to power the transmission device and the sensor. A method for system for operating and monitoring wind turbine operation are also disclosed.
Owner:GENERAL ELECTRIC CO
Centrifugal pump performance degradation detection
ActiveUS7112037B2Lower performance requirementsWind motor controlPump componentsEngineeringOperating limit
A system for determining whether a centrifugal pump assembly is degraded as operating outside of acceptable operating limits and includes a processor adapted by software to perform the steps of automatically characterizing the pump characteristics at a predetermined operating level and testing for degradation using the automatically acquired pump characteristics.
Owner:ITT MFG ENTERPRISES LLC
Stall and surge detection system and method
A system includes a compressor and a control system. The control system includes a processor and associated memory. The control system is configured to receive feedback comprising a thermodynamic characteristic or a mechanical characteristic of the compressor. Also, the control system is configured to generate an indication of a surge event or a stall event in the compressor based on the feedback.
Owner:BAKER HUGHES INC
Apparatus for controlling engine rotation stop by estimating kinetic energy and stop position
InactiveUS7027911B2Reduce variationImprove exhaust emissionsAnalogue computers for vehiclesElectrical controlEngineeringSmall range
A control apparatus for an engine increases an intake air quantity just before engine stop to increase a compression pressure in a compression stroke. As the compression pressure is increased, a negative torque in the compression stroke increases and obstructs engine rotation, and brakes the engine rotation. Thus, a range of crank angle, in which torque is below engine friction, that is, in which engine rotation can be stopped, is reduced. As a result, variation in engine rotation stop position is reduced to be within a small range of crank angle. Information of engine rotation stop position is stored, and the stored information of engine rotation stop position is used at the start of an engine to accurately determine an initial injection cylinder and an initial ignition cylinder to start the engine.
Owner:DENSO CORP
Method and arrangement in a hybrid vehicle for maximizing total torque output by minimizing differential torque capacities of the engine and generator
Owner:FORD GLOBAL TECH LLC
Drive device for a windmill provided with two counter-rotative propellers
The drive device is provided for inclusion in a windmill with two counter-rotating screws. The shafts of the screws are each connected to a spindle of an epicyclical gearbox, the third spindle providing the energy for the user. The device further comprises a brake device simultaneously acting on the two shafts of the screws. In particular, said device permits the installation of a second screw on a windmill mast designed for a single screw on a windmill mast designed for a single screw, thus greatly increasing the power supplied.
Owner:EOTHEME
Fan speed change control
InactiveUS20070297893A1Increase fan speedWind motor controlEfficient regulation technologiesAuto regulationElectronic systems
Methods and systems for controlling the speed of a fan for an electronic system. In some embodiments of the invention, temperatures are associated with changes in the value of a variable relating to fan speed. In one of these embodiments, there is a range of temperatures where the fan speed is fixed. In one embodiment of the invention, where there is a plurality of temperature readings associated with a fan, the temperature reading which would result in the highest fan speed is operative. In one embodiment of the invention, the fan speed control is capable of automatic self-adjustment.
Owner:WINBOND ELECTRONICS CORP
System and method of surge limit control for turbo compressors
A system and method of surge limit control for turbo compressors including a turbo compressor having an inlet and an outlet, an anti-surge valve, a variable speed drive to operate the compressor, a rotational speed transmitter, an inlet temperature transmitter, an inlet pressure transmitter, an outlet pressure transmitter and / or guide vanes, and a controller, the controller including a PID control module wherein the computer uses information from the transmitters to continuously calculate a pressure ratio of the compressor at the compressor's current operational speed and compare it to the compressor's calculated pressure ratio at surge limit conditions. A computer generates a control signal for determining when to open the anti-surge valve if the pressure ratio of the compressor at the compressor's current operational speed guide vanes are within a user defined safety margin to the calculated pressure ratio at surge limit conditions.
Owner:CONTINUOUS CONTROL SOLUTIONS
Subsea turbine with a peripheral drive
A ducted water turbine is configured to be installed in a subsea environment to generate hydroelectric power and broadly includes a turbine housing, a turbine rotor, and a generator. The turbine rotor includes a peripheral rim and a plurality of rotor blades mounted to and extending radially inwardly from the rim. The turbine housing includes a duct that permits water to flow through the housing. The peripheral rim is rotatably mounted in the duct, with the water flow causing the turbine rotor to spin. The turbine rotor is drivingly connected to the generator and powers the generator when the turbine rotor is spun by the water flow.
Owner:BEST BRUCE +1
Method and device to avoid turbo instability in a gas turbine engine
ActiveUS20090245997A1Change nozzle exit areaUndesired stability marginCosmonautic vehiclesEngine manufactureNacelleControl system
(A1) A turbofan engine control system is provided for managing a fan operating line. The engine (10) includes a spool having a turbine housed in a core nacelle (12). A turbofan (20) is coupled to the spool (14). A fan nacelle (34) surrounds the turbofan and core nacelle and provides a bypass flow path having a nozzle exit area (40). A controller (50) is programmed to effectively change the nozzle exit area in response to an undesired turbofan stability margin which may result in a stall or flutter condition. In one example, the physical nozzle exit area is increased at the undesired stability condition in which the airflow into the engine creates a destabilizing pressure gradient at the inlet side of the turbofan. A turbofan pressure ratio, turbofan pressure gradient, low spool speed and throttle position are monitored to determine the undesired turbofan stability margin.
Owner:RAYTHEON TECH CORP
Engine shut-down for engine having adjustable valve timing
ActiveUS20050205049A1Reduce stopping engine stopping timeLess gasAnalogue computers for vehiclesElectrical controlBrake torqueExhaust valve
A method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle, comprising during conditions of an engine shut-down, maintaining at least one of the intake and exhaust valves in a closed position, and during conditions where said at least one valve is in said closed position operating with the other of the intake and exhaust valve open, then closing the other of the intake and exhaust valve, and then opening the other of the intake and exhaust valve to generate braking torque to slow the engine.
Owner:FORD GLOBAL TECH LLC
Process for repairing turbine components
A process for repairing a turbine component comprises overlaying a preform of a brazing material onto a surface of the turbine component, wherein the surface comprises a damaged portion; securing the preform of a brazing material to the surface; and heating the turbine component to a temperature effective to form a brazed joint between the brazing material and the turbine component. Also disclosed is a repaired turbine component repaired by the process.
Owner:GENERAL ELECTRIC CO
Device, system and method for on-line monitoring of flow quantities
InactiveUS20050031443A1Improving monitoring and control and diagnosingEasily integrated into existing equipmentWind motor controlPump controlTotal efficiencyMotor drive
Measures of a torque and rotational speed of a pump or fan are obtained, from which a mechanical input power can be calculated. By further using predetermined relations between mechanical input power and flow rate through the pump or fan, a measure of the flow rate can be derived without use of in-line flow or pressure sensors. In preferred embodiments the torque and / or rotational speed is obtained by measuring the input current and voltage of a motor driving the pump or fan and using predetermined relations between on the one hand current and voltage and on the other hand torque and rotational speed. Furthermore, also other flow properties, such as pump head, pump efficiency and total efficiency can be determined in this manner.
Owner:ABB (SCHWEIZ) AG
Method for monitoring a component in a hydraulic circuit, monitoring device and fluid turbine
InactiveUS20110142596A1Valve arrangementsFluid-pressure actuator testingWorking fluidHydraulic circuit
The disclosure concerns a method for monitoring at least one component to be monitored in a hydraulic circuit filled with a working fluid, the hydraulic circuit comprises at least one pump for circulating the working fluid, wherein the method comprises:—changing an operational state of at least one first component in the hydraulic circuit such that a working point of the at least one component to be monitored changes to a predetermined working point;—performing at least one measurement for monitoring the at least one component to be monitored. Further, the disclosure concerns a monitoring device for monitoring at least one component to be monitored in a hydraulic circuit being filled with a working fluid. Further, the disclosure concerns a fluid turbine comprising at least one fluid rotor, wherein the fluid rotor is adapted to convert kinetic power of a fluid into a rotation, the fluid turbine further comprising a hydraulic circuit filled with a working fluid.
Owner:GENERAL ELECTRIC CO
Method of monitoring gas turbine engine operation
ActiveUS20050261820A1Easy to operateVehicle testingTurbine/propulsion fuel supply systemsEngineeringCourse of action
A system, method and apparatus for monitoring the performance of a gas turbine engine. A counter value Indicative of the comparison between the engine condition and the threshold condition is adjusted. The aircraft operator is warned of an impending maintenance condition based on the counter value and determines an appropriate course of action.
Owner:PRATT & WHITNEY CANADA CORP
Method and arrangement in a hybrid vehicle for initiating early engine operation during take-off conditions
Method for potentiating an engine's power contribution to a hybrid electric vehicle's performance in a take-off operating condition is disclosed. Normally, fuel injection to, and ignition at the engine 511 are only commenced when the engine is operating at a speed exceeding the resonance speed of the drive train to reduce engine start harshness; such resonance speeds of the drive train being dictated, at least in part, by transmission backlash, softness and the like. During high driver acceleration demands, however, ignition and the injection of fuel is desirably started as early as possible to potentiate output power and acceleration.
Owner:FORD GLOBAL TECH LLC
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