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64results about "Speed/accelaration control without auxillary power" patented technology
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Control Valve System with Cycle Monitoring, Diagnostics and Degradation Prediction
ActiveUS20090306830A1Avoid disturbanceValve arrangementsFluid-pressure actuator testingEngineeringControl valves
A valve body has an elongated bore in communication with an inlet port and an outlet port. A valve element is movable within the bore between deactuated and actuated positions. A valve sensor generates a sensor signal indicative of an instantaneous parameter of the valve that changes between the deactuated and actuated positions. A logic unit receives the sensor signal and a pilot command signal that actuates the valve. A predetermined change in the pilot command signal causes the logic unit to determine a cycle parameter responsive to a time period between two predetermined events. At least the beginning or end of the time period corresponds to a predetermined value of the sensor signal. The individual determinations of the cycle parameter are accumulated to obtain an expected cycle parameter. The logic unit generates an indication signal when the cycle parameter exhibits a predetermined variance from the expected cycle parameter.
Owner:ROSS OPERATING VALVE CO
Single phase motor with positive torque parking positions
A motor with positive torque parking positions. The motor includes a rotor which is rotatable about an axis of rotation and a stator in magnetic coupling relation with the rotor. The stator includes a plurality of teeth each having a radially extending shaft and an axially extending face. The faces of the stator teeth define an aperture for receiving the rotor and the faces of the stator teeth and the rotor define a air gap therebetween. Each stator tooth has a notch in its face that is approximately at least as wide as the shaft of the stator tooth so that the stator has a magnetic configuration relative to the rotor for parking the rotor in a rest position corresponding to a positive torque starting position. The motor also includes a winding on the shafts of the stator teeth and a control circuit for controlling current in the winding whereby an electromagnetic field is produced for rotating the rotor at a desired speed or torque during the operation of the motor.
Owner:GENERAL ELECTRIC CO
Rotary valve and analytical chromatographic system using the same
ActiveUS7503203B2Eliminate buildupReduce the possibilityComponent separationMultiple way valvesRotary valveEngineering
There is provided a rotary valve for fluid analytical systems. The present valve provides improved characteristics such as an extended lifetime. The valve can fulfil different fluid analytical functions and can be a multi-ports and / or multi-positions valve. The valve is provided with extra recesses in the rotor and extra ports in the stator. These recesses allow to cancel the effect of any possible leaks by evacuating them. Such a valve then prevents cross-port leaks and can advantageously be used in highly critical applications. Moreover, the present valve can be used in an analytical system which is advantageously self-diagnostic.
Owner:APN INC
Method and time-of-flight camera for providing distance information
ActiveUS9599712B2Improve accuracyReduce electromagnetic interferenceOptical rangefindersTransmission noise suppressionOptoelectronicsTime-of-flight camera
The invention relates to a method for providing distance information of a scene with a time-of-flight camera (1), comprising the steps of emitting a modulated light pulse towards the scene, receiving reflections of the modulated light pulse from the scene, evaluating a time-of-flight information for the received reflections of the modulated light pulse, and deriving distance information from the time-of-flight information for the received reflections, whereby a spread spectrum signal is applied to a base frequency of the modulation of the light pulse, and the time-of-flight information is evaluated under consideration of the a spread spectrum signal applied to the base frequency of the modulation of the light pulse. The invention further relates to a time-of-flight camera (1) for providing distance information from a scene, whereby the time-of-flight camera (1) performs the above method.
Owner:SOFTKINETIC SENSORS
Control valve system with cycle monitoring, diagnostics and degradation prediction
A valve body has an elongated bore in communication with an inlet port and an outlet port. A valve element is movable within the bore between deactuated and actuated positions. A valve sensor generates a sensor signal indicative of an instantaneous parameter of the valve that changes between the deactuated and actuated positions. A logic unit receives the sensor signal and a pilot command signal that actuates the valve. A predetermined change in the pilot command signal causes the logic unit to determine a cycle parameter responsive to a time period between two predetermined events. At least the beginning or end of the time period corresponds to a predetermined value of the sensor signal. The individual determinations of the cycle parameter are accumulated to obtain an expected cycle parameter. The logic unit generates an indication signal when the cycle parameter exhibits a predetermined variance from the expected cycle parameter.
Owner:ROSS OPERATING VALVE CO
A method of regulating the flow rate of air in a rotary shaft of a turbomachine
ActiveUS20060239812A1Improve performanceReliable resultsPump componentsWind motor controlRotational axisWindow shutter
A device applied to regulating the flow rate of air flowing in a rotary shaft of a turbomachine, the shaft including at least one through orifice for passing air. The device at least one shutter member for shutting the orifice and secured to a deformable blade presenting bi-linear behavior, the blade being secured to the shaft and being suitable for deforming under the effect of the centrifugal force that results from the shaft rotating such that the shutter member is suitable for taking up two different positions depending on the speed of rotation of the shaft: one position in which it shuts the orifice; and another position in which it releases the orifice to allow air to pass through.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
System and method for controlling rotational speed of fan
InactiveCN101008855AAvoid drastic changes in speedGuaranteed uptimeTemperature control with auxillary non-electric powerSpeed/accelaration control without auxillary powerControl signalProcess module
This invention discloses one fan rotation control system and method applied in electrode device with fan temperature adjust, wherein, the system comprises the following parts: temperature test unit with multiple sensors to test different heat object temperature for output; memory unit to store temperature and rotation speed relationship to make the preset temperature respond one preset rotation and process module; catching temperature fan rotation according to the output temperature; sending one control signal to one fan.
Owner:INVENTEC CORP
Governor for a timepiece wheel set or strike wheel set
ActiveUS20120207001A1Consume energyAcoustic indicationElectric indicationLow speedMechanical engineering
Timepiece wheel governor (1) for regulating the pivoting speed (ω) of a wheel set (3), about a pivot axis (D1), including a pivoting inertia-block (4).It includes a means (7) of returning said block (4) towards said axis (D1), and, when said wheel set (3) pivots at a lower speed than a reference speed (ωc), said block (4) remains confined within a first volume of revolution (VI), and, when said wheel set (3) pivots at a higher speed than said reference speed (ωc), said block (4) is engaged, in one peripheral portion (30) thereof, in a second volume (VE) contiguous with and external to said first one (VI), said peripheral portion (30) cooperating in said second volume (VE) with a regulating means arranged to brake said wheel set (3) and return the pivoting speed (ω) thereof to said reference speed (ωc), and to dissipate the surplus energy.
Owner:MONTRES BREGUET
Method and time-of-flight camera for providing distance information
ActiveUS20140160461A1Improves electromagnetic complianceImprove accuracyOptical rangefindersTransmission noise suppressionEngineeringTime-of-flight camera
The invention relates to a method for providing distance information of a scene with a time-of-flight camera (1), comprising the steps of emitting a modulated light pulse towards the scene, receiving reflections of the modulated light pulse from the scene, evaluating a time-of-flight information for the received reflections of the modulated light pulse, and deriving distance information from the time-of-flight information for the received reflections, whereby a spread spectrum signal is applied to a base frequency of the modulation of the light pulse, and the time-of-flight information is evaluated under consideration of the a spread spectrum signal applied to the base frequency of the modulation of the light pulse. The invention further relates to a time-of-flight camera (1) for providing distance information from a scene, whereby the time-of-flight camera (1) performs the above method.
Owner:SOFTKINETIC SENSORS
Air driven spindle assembly
ActiveUS7568867B2Easy to adjustWind motor controlAttachable milling devicesEngineeringPneumatic tool
An air driven tool for use in a machining center, the air driven tool including an adjustable speed regulator and a turbine. The turbine is driven by pressurized air directed thereto. The turbine is rotatable about an axis. A flow of the air is regulated by the adjustable speed regulator. The adjustable speed regulator includes a biasing member, an inclined annular surface, a regulator plate and a plurality of moveable bearings. The inclined annular surface has an angle relative to the axis. The plurality of movable bearings are positioned between the inclined annular surface and the regulator plate. The biasing member biases the inclined annular surface and / or the regulator plate toward each other.
Owner:BRYAN STEVE M
Electric air pump apparatus and evaporation fuel treatment system
InactiveUS20060219231A1DownsizingImprove control responsivenessInternal combustion piston enginesWind motor controlEvaporationAir pump
A self-opened type valve is opened by motor torque of an electric motor. Therefore, a diaphragm is not necessary for opening the valve, and downsizing of a valve drive apparatus for opening the valve is possible. Since the valve is assembled to the motor shaft of the electric air pump via a motion-direction conversion mechanism, an opening action of the valve can start in a short time after a rotational action of the impeller of the electric air pump starts, so that control responsiveness is improved. At a rotation stop of the impeller of the electric air pump, the valve can be maintained in a fully closed condition by an urging force of the coil spring, thereby preventing exhaust gases or condensed water from entering into an inside of the electric air pump.
Owner:DENSO CORP
Device and Method for Controlling Valve
InactiveUS20090228153A1Convenient valve controlling methodGuaranteed uptimeMechanical apparatusLevel controlAuto regulationControl valves
To provide a valve controller which is convenient for users in that, even users without abundant experience and expert knowledge can obtain the optimum operation performance for a short period of time; and it can be prevented that control performance is caused to be deteriorated on the contrary in dependence on changing way of each coefficient. A valve controller 8 for controlling valve opening of an expansion valve 4 by calculating the valve opening such that a detected temperature (degree of superheat) Tsh coincides with a target temperature (degree of superheat) TS comprises: automatic tuning means for calculating a deviation e(t) between the detected temperature and the target temperature and for calculating changing amount of the valve opening m(t) by substituting at least the deviation and a set control parameter (PB, Ti, Td) into an arithmetic expression to automatically set the control parameter; and control level adjusting means for adjusting a magnitude of the valve opening calculated with the control parameter set by the automatic tuning means in stages in accordance with a set control level, and so on.
Owner:FUJIKOKI CORP
Controllable high volume positive displacement pump
InactiveUS6200111B1Increase flow rateOperating means/releasing devices for valvesSlide valveGratingCylinder head
A controllable positive displacement pump for liquids and gases which may contain dispersed phase particles includes a pair of pistons operating out of phase. Each of the pistons is associated with an inlet valve which includes a fixed grating defining slots which extend parallel to piston travel and a complementarily configured grating which reciprocates transversely in timed relationship with the piston to control the influx of fluid. A rotary outlet valve is also associated with each piston and includes a rotating member disposed transversely across the cylinder head and which rotates in synchronism to open a through, radial port in the member in timed relationship to the piston travel. The positive displacement pump finds particular application to transport powder paint.
Owner:FOSS JOHN F
Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission
InactiveUS20050252326A1Operating means/releasing devices for valvesServomotor componentsSystem pressureEngineering
A device for driving a plurality of hydraulic shift cylinders, especially shift cylinders for shifting gears of a twin-clutch transmission, includes a first slide valve having a control intake to which control pressure is applied, a system pressure intake to which system pressure is applied, two outlets and at least one return outlet, the one outlet being connected to the system pressure intake and the other outlet being connected to the return outlet, as desired, and a valve device connected to the outlets of the slide valve via which the shift cylinders may be selectively actuated.
Owner:SCHAEFFLER TECH AG & CO KG
Electric air pump apparatus and evaporation fuel treatment system
InactiveUS7575410B2Improve control responsivenessReduce partInternal combustion piston enginesWind motor controlEvaporationAir pump
A self-opened type valve is opened by motor torque of an electric motor. Therefore, a diaphragm is not necessary for opening the valve, and downsizing of a valve drive apparatus for opening the valve is possible. Since the valve is assembled to the motor shaft of the electric air pump via a motion-direction conversion mechanism, an opening action of the valve can start in a short time after a rotational action of the impeller of the electric air pump starts, so that control responsiveness is improved. At a rotation stop of the impeller of the electric air pump, the valve can be maintained in a fully closed condition by an urging force of the coil spring, thereby preventing exhaust gases or condensed water from entering into an inside of the electric air pump.
Owner:DENSO CORP
Fluid control system for steerable agricultural implement
ActiveUS20110315234A1Operating means/releasing devices for valvesServomotor componentsFluid controlAutomatic control
An agricultural implement system is provided that includes a valve in fluid communication with first and second actuating cylinders and with first and second fluid conduits. The valve is configured to control fluid flow from the first and second fluid conduits to the first and second actuating cylinders. Furthermore, a controller is communicatively coupled to first and second pressure sensors and to the valve. The first pressure sensor is coupled to the first fluid conduit, and the second pressure sensor is coupled to the second fluid conduit. The controller is configured to determine whether the first fluid conduit or the second fluid conduit is supplying fluid to the valve based on signals from the first and second pressure sensors, and to automatically control fluid flow to the first and second actuating cylinders such that wheel assemblies are rotated to a desired angle relative to an implement frame.
Owner:BLUE LEAF I P INC
Automated valve with self-contained valve actuator system
InactiveUS20100180954A1Electric signal transmission systemsLevel controlValve actuatorHydraulic fluid
A self-contained valve actuator of the present invention can comprise an actuator component. This actuator can be linear or quarter turn depending on the valve. The actuator can be double acting which means the piston will move once to open and once to close. The self-contained valve system uses hydraulic fluid to operate the valve. The valve system is directly powered with electric power from a battery. Solar panels are also incorporated to capture solar energy and convert this energy into electrical energy. This converted electrical energy is stored in the battery which enables the battery to continuously supply energy while substantially reducing the possibility of exhausting battery power. This resupply of electrical energy and the use of the hydraulic fluid creates a self-contained valve actuation system.
Owner:CERTUS PROCESS SOLUTIONS
Intelligent current stabilizer and method
InactiveCN102253674ATake advantage ofTo achieve the effect of steady flowFluid speed measurementSpeed/accelaration control without auxillary powerAutomatic controlElectrical field strength
The invention relates to an intelligent current stabilizer and method controlled by electro-rheological fluid, which is mainly characterized in that the self-adaption adjustment for the flow speed of the fluid is realized based on the combination of a laser speckle speed measurement technique and an electro-rheological technique, thereby reaching the purpose of current stabilization. When laser beams pass through the fluid containing trace particles, the transient speed of the fluid is obtained through a laser speckle speed measurement method. The transient speed of the fluid is compared with a set speed value through a control program, the electric field strength value applied on the fluid is determined; the fluid scattered with the trace particles generates electro-rheological effects; and the flow speed of the fluid in a pipeline is adjusted to be in correspondence with a set value by changing the solidification degree of the fluid, thereby realizing current stabilization. The invention can realize real-time measurement for the flow speed of the fluid and can realize automatic control for the flow speed and flow quantity of the fluid; and simultaneously, the system has the advantage of simplicity in structure and is easy to realize.
Owner:WUHAN POLYTECHNIC UNIVERSITY
Valve arrangement
InactiveUS20010009165A1Simple fashionEasy to cleanServomotor componentsEngineering safety devicesEngineeringVALVE PORT
A valve comprising a valve carrier on which a plurality of control units are mounted adjacent to one another. Each control unit possesses a liquid-tight casing body in which the coomponent of a valve unit are received and is mounted on the valve carrier with a seal in between. It is in this manner that a liquid-tight, encapsulated and individual accommodation of the singular valve units is ensured.
Owner:FESTO AG & CO KG
Method of regulating the flow rate of air in a rotary shaft of a turbomachine
ActiveUS7258524B2Improve performanceReliable resultsPump componentsWind motor controlRotation velocityEngineering
A device applied to regulating the flow rate of air flowing in a rotary shaft of a turbomachine, the shaft including at least one through orifice for passing air. The device at least one shutter member for shutting the orifice and secured to a deformable blade presenting bi-linear behavior, the blade being secured to the shaft and being suitable for deforming under the effect of the centrifugal force that results from the shaft rotating such that the shutter member is suitable for taking up two different positions depending on the speed of rotation of the shaft: one position in which it shuts the orifice; and another position in which it releases the orifice to allow air to pass through.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission
InactiveUS7418885B2Operating means/releasing devices for valvesServomotor componentsHydraulic cylinderSystem pressure
A device for driving a plurality of hydraulic shift cylinders, especially shift cylinders for shifting gears of a twin-clutch transmission, includes a first slide valve having a control intake to which control pressure is applied, a system pressure intake to which system pressure is applied, two outlets and at least one return outlet, the one outlet being connected to the system pressure intake and the other outlet being connected to the return outlet, as desired, and a valve device connected to the outlets of the slide valve via which the shift cylinders may be selectively actuated.
Owner:SCHAEFFLER TECH AG & CO KG
Check valve for diesel engine
InactiveUS20050061267A1Increase oil jet change amountDecrease oil jet change amountLiquid coolingAir coolingFriction lossEngineering
A check valve for a diesel engine comprises a pipe formed with an oil inlet and oil outlet. A piston is slidably installed in the pipe and a spring pressures the piston toward the oil inlet side for closing an oil passage connecting the oil inlet and oil outlet. The spring is an asymmetric compression spring, which allows the compression length change of the spring to be relatively large at low oil pressure and slight at high oil pressure. Thereby, relatively increasing the oil jet change amount when the rpm of the diesel engine is low and decreasing the oil jet change amount when the rpm of the diesel engine is high. Thus reducing frictional loss of the engine oil pump and improving the fuel consumption rate.
Owner:HYUNDAI MOTOR CO LTD
Fluid control system for steerable agricultural implement
An agricultural implement system is provided that includes a valve in fluid communication with first and second actuating cylinders and with first and second fluid conduits. The valve is configured to control fluid flow from the first and second fluid conduits to the first and second actuating cylinders. Furthermore, a controller is communicatively coupled to first and second pressure sensors and to the valve. The first pressure sensor is coupled to the first fluid conduit, and the second pressure sensor is coupled to the second fluid conduit. The controller is configured to determine whether the first fluid conduit or the second fluid conduit is supplying fluid to the valve based on signals from the first and second pressure sensors, and to automatically control fluid flow to the first and second actuating cylinders such that wheel assemblies are rotated to a desired angle relative to an implement frame.
Owner:BLUE LEAF I P INC
Gas driven rotation motor, a tool provided with a gas driven rotation motor and a method for regulating speed of a gas driven rotation motor
ActiveUS20110236180A1Less complex constructionLess expensiveDrilling rodsWind motor controlDrive motorEngineering
A gas driven motor includes a housing, a gas driven rotating member including a rotor and a rotor shaft carrying the rotor and journalled in a first bearing and a second bearing supported in the housing, and a speed governor for controlling a pressure gas inlet flow in response to the rotation speed of the rotating member. The first bearing includes a set of rolling elements, an outer race arranged in the housing and an inner race arranged on a shaft portion of the rotating member, the set of rolling elements being in contact with the races on which the rolling elements roll. The motor further includes a coupling device arranged to couple the speed governor to the rolling elements of the first bearing, thereby transferring the rotary motion from the rolling elements to the speed governor.
Owner:ATLAS COPCO INDAL TECHN AB
Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substance
InactiveUS20060144686A1Easily polymerizableReduce stepsDistillation regulation/controlCarboxylic acid esters preparationDifferential pressureEngineering
In an apparatus capable of distilling and refining an easily polymerizable substance, piping is performed so that when a strainer in action is switched to a backup strainer, the strainer can be switched after removing air in the backup strainer to replace air in the backup strainer with a discharge liquid of a pump. According to the apparatus, switching the strainers installed on an upstream side of the pump for extracting a liquid of a vacuum distillation column, which distills and refines the easily polymerizable substance, can be performed with no trouble during operation of the distillation column. When the apparatus includes a device for measuring a differential pressure between an upstream side and a downstream side of the strainer in action, two or more strainers installed in parallel can be switched at proper times and the easily polymerizable substance can be produced efficiently.
Owner:MITSUBISHI CHEM CORP
Dryer
ActiveUS20200085162A1Even heat dissipationDeterioration of display deviceCircuit monitoring/indicationTemperature control using plurality of sensorsGraphicsDisplay device
A dryer includes a hollow casing accommodating a fan and a heater and having an open front and an open rear, and a display device disposed at the rear of the casing and covering at least a part of the open rear. The display device and a rear edge of the casing are spaced apart from each other to thereby form an air introduction area that is opened between the display device and a rear edge of the casing. The display device can display a graphic object on at least one of a plurality of display areas. A controller can select a drying object and change the graphic object to a suggested drying temperature based on pre-stored information of the drying object. The controller can also rotate the graphic object on the screen of the display panel based on a rotation posture of the dryer.
Owner:LG ELECTRONICS INC
Air driven spindle assembly
ActiveUS20080093094A1Easy to adjustWind motor controlAttachable milling devicesEngineeringPneumatic tool
An air driven tool for use in a machining center, the air driven tool including an adjustable speed regulator and a turbine. The turbine is driven by pressurized air directed thereto. The turbine is rotatable about an axis. A flow of the air is regulated by the adjustable speed regulator. The adjustable speed regulator includes a biasing member, an inclined annular surface, a regulator plate and a plurality of moveable bearings. The inclined annular surface has an angle relative to the axis. The plurality of movable bearings are positioned between the inclined annular surface and the regulator plate. The biasing member biases the inclined annular surface and / or the regulator plate toward each other.
Owner:BRYAN STEVE M
Governor and a power generating device and an apparatus using the governor
ActiveUS7590030B2Little powerNot produceVisual indicationTime indicationRotational axisWear particle
Owner:SEIKO EPSON CORP
Programmable device for compressor valve
ActiveUS8584698B2Operating means/releasing devices for valvesMachines/enginesProgrammable logic deviceEngineering
An electronic, programmable device for controlling the motion of compressor valve elements, wherein the device receives an incoming signal from a velocity sensor located on a compressor valve; filters, amplifies, and processes the incoming signal by a control algorithm; and responds to the incoming signal by creating an output signal that produces an actuator force that is applied directly to a moving valve element and associated methodology.
Owner:SOUTHERN GAS ASSOC GAS MACHINERY RES COUNCIL
Elevator used governor
InactiveCN1854053AGood effectMiniaturizationElevatorsSpeed/accelaration control without auxillary powerRotary switchSpring force
A speed governor for an elevator, comprising: a speed governor pulley (13) wound with a speed governor rope (7) linked with an elevator car (1) and supported by a shaft; claws (46, 46A) The swing member (18, 18A) moved toward the outer diameter side of the pulley (13) by the centrifugal force generated by the rotation of the pulley (13); is formed by contacting the moving claw (46, 46A) Rotate and release the engaging piece of the switch (22); use its own weight to rotate, and clamp the wedge part (31, 31A) of the governor rope (7) between the opposite clamping piece (37, 37A) ); and a hook that rotates and releases the support of the wedge (31, 31A) by abutting against the claw (46, 46A) that moves further toward the outer diameter side of the pulley (13), wherein, The wedge portion (31, 31A) is urged toward the speed governor rope (7) by the elastic force of the disc spring (43). Therefore, a speed controller for an elevator that can be easily downsized is provided.
Owner:HITACHI LTD +1
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