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CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR

Subclass of:

417 - Pumps

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
417440100 By control of electric or magnetic drive motor 189
417036000 Responsive to accumulation of pumped liquid in receiver 32
417032000 Responsive to pump or pump fluid temperature 31
417002000 Plural pumps having separate drive motors, supply sources, or delivery destinations 28
417018000 Single motor control element responsive to means sensing diverse conditions 25
417042000 In response to pump speed 23
417012000 Having timer or delay means 21
417046000 By controlling drive motor motive fluid 21
417026000 With condition responsive control of pump fluid valve 19
417043000 Responsive to change in rate of pump fluid flow 13
417014000 Having ambient condition responsive means 12
417034000 By controlling internal combustion drive engine 9
417015000 With control of pump drive transmission 8
417013000 Responsive to pump lubricant, sealant, or coolant condition 8
417016000 With plural separate drive motors for single pump unit 4
20100158702AIR COMPRESSOR SYSTEM - In one aspect of the present invention, a compressor system includes a compressor shaft for generating compressed air, a clutch that, when engaged, transfers power from a vehicle engine to drive the compressor shaft and that, when disengaged, does not transfers power from the vehicle engine to drive the compressor shaft. An electric motor that, when activated, drives the compressor shaft. A control module that sets the compressor into one of at least three modes of operation as a function of respective statuses of various vehicle components. The compressor shaft is driven by both the clutch and the electric motor during at least one of the modes.06-24-2010
20120244011Turbocharger Brake - Exhaust gases can bypass a turbocharger to reduce its speed, but energy in the gases is then lost. A brake for a turbocharger can be implemented using at least one rotor driven by the turbocharger rotatable shaft and at least one stator. Either the rotor or stator are magnetic, the other being ferrous, such that rotation of the shaft induces eddy currents in the ferrous part, thereby extracting energy from the shaft. The magnetic field experienced by the ferrous part can be adjusted in response to an input parameter to control the level of braking.09-27-2012
20090129936ELECTRONIC DEVICE HAVING BLOWER - An electronic device having a first motor which rotates a rotating body (for example, blades) about a rotation axis and a second motor which vibrates a vibrator including the rotating body in the axial direction is provided. A control IC unit has a first circuit which subjects the rotation to control drive by a first waveform, and a second circuit which subjects the vibration to control drive by a second waveform. Rotation and vibration of a rotating and vibrating unit driven by the first and second motors generates an airflow and output sound by a synthesized output of a first output corresponding to the rotation and a second output corresponding to the vibration. The control IC unit generates a second waveform by using a reversed-phase waveform with respect to the first waveform or the like and suppresses the output sound by control of the first and second waveforms.05-21-2009
20100068071MOBILE WORK PLATFORM - A mobile work platform includes an operator platform (03-18-2010
417017000 With plural separate drive motor controlling elements 3
20090123293METHOD AND APPARATUS OF DRIVING MULTIPLE SHAFTS IN A WET/DRY VACUUM AND LIQUID PUMP - The present disclosure provides a method and system to supply pumping capabilities to a wet and dry vacuum cleaner. A single motor can operate a vacuum unit and the pump distinct from the vacuum unit. A port in the vacuum flow path can act as a vacuum tap to prime the pump when necessary. The pump can directly pump the fluids without having to flow first into the drum container of the vacuum cleaner. The system can allow independent operation of the vacuum unit and the pump and at different, more optimal speeds for each, allowing a higher performance on each of the vacuum unit and the pump, since maximum power for the system can be provided to either the operating device while the other one is not operating. Accordingly, the disclosure further provides a system and method for separately engaging and disengaging the vacuum unit and the pump.05-14-2009
20090053072Integrated "One Pump" Control of Pumping Equipment - Methods and systems for improving the efficiency of a pumping process by controlling the operation of the pumps involved based on certain parameters characterizing the pump. A pump unit is coupled to a pump controller which is in turn, coupled to a pump modulator. A master controller drives the pump modulator based on a desired output parameter for the system. The pump modulator then drives each pump unit through its corresponding pump controller in a manner for the system to achieve optimal performance.02-26-2009
20130171007METHOD FOR STARTING AN ELECTRIC MOTOR IN A HYDRAULICALLY OPERATED WORKING MACHINE - The invention relates to a method for starting at least one asynchronous electric motor of a large hydraulic excavator having a service weight >100 t and having an electrohydraulic drive, in that the particular electric motor is transferred from an idle position to an operating position by using a three-stage motor starting process, wherein the volumetric flow rate of at least one hydraulic pump operatively connected to the electric motor is set to the delivery rate V=0 during all starting stages of the electric motor and the delivery rate V of the hydraulic pump is controlled to a value >0 only after the last starting stage of the electric motor by activating an actuator.07-04-2013
417011000 By controlling free piston internal combustion engine 1
20110052415AUTOMATIC COMPRESSOR OVERPRESSURE CONTROL - The present embodiments provide a system having a motor, a compressor having a compression device configured to increase a pressure of a gas, a clutch configured to selectively transfer torque from the motor to the compressor to drive the compression device, and a controller configured to disengage the clutch if the pressure of the gas in the compressor meets or exceeds a first threshold pressure.03-03-2011
417033000 Pump stop control means requiring manual reset 1
20080317603Locking Ring in a Pump of a Beverage System - A beverage system includes a pump that draws a set amount of a flavored concentrate into a mixing chamber for mixing with water to form a beverage. A locking ring attaches an adapter plate to a pump head. When the locking ring is in a locked position, a magnet of the locking ring is detected by a reed switch. If the locking ring rotates from the locked position, the reed switch does not detect the magnet, indicating that the locking ring, and therefore the pump head, is incorrectly or not completely installed. The controller then stops operation of the pump.12-25-2008
Entries
DocumentTitleDate
20110206538AIR COMPRESSOR - When an air pressure in a tank part (08-25-2011
20090129935PUMP SUCTION PRESSURE LIMITING SPEED CONTROL AND RELATED PUMP DRIVER AND SPRINKLER SYSTEM - A building sprinkler system includes a pump that feeds a plurality of sprinkler heads. A driver is operatively connected to the pump for driving the pump. A speed control is responsive to suction pressure at a suction side of the pump. The speed control is configured to reduce driver speed when the suction pressure falls below a set threshold pressure value to maintain the suction pressure above the set threshold pressure value.05-21-2009
20130045112ROLLER POSITIONING SYSTEM - A tube-positioning system for loading tubing into a peristaltic pump includes a shell configured to slidably fit onto, and be releasably secured relative to, an exterior housing of a peristaltic pump. A pair of guides protrude from an upper portion of opposite side walls of the shell with each guide configured to releasably mount a first tube segment to extend between the guides.02-21-2013
20100143155Piston Pump Having A Force Sensor And A Method For Controlling Said Pump - The present invention relates to a piston pump for generating a delivery flow, which is substantially free of pulsation, in particular to a dual piston pump, and to a method for controlling such a piston pump delivering a pumped medium from a low-pressure area into a high-pressure area, wherein measuring sensors detecting mechanical forces or moments transmitted by the structure of the pump or its associated drive unit are used instead of the pressure or flow sensors usually employed for this purpose.06-10-2010
20130089435METHOD FOR OPERATING AT LEAST ONE PUMP FACILITY - A method for operating at least one pump facility is proposed. The pump facility is assigned to a cooling facility arranged externally relative to a magnetic resonance facility for examination of an examination object. At least one operating parameter of the pump facility influencing the power input of the pump facility is set as a function of at least one item of control information relating to the examination object to be examined with the magnetic resonance facility.04-11-2013
20130071256PUMP WITH WEAR SLEEVE - A pump is disclosed, comprising: a pump block defining a cylinder in which a piston is mounted for reciprocation and positive displacement of fluids from an intake port of the pump block to a discharge port of the pump block; an intake valve located in the intake port of the pump block and a discharge valve located in the discharge port of the pump block; the intake valve having a valve plug that has a closed position in which the valve plug is seated on a valve seat in the intake port; a wear sleeve lining at least a portion of the intake port upstream of the valve seat; a pressure sensor upstream of the intake valve for detecting a pressure condition indicative of failure of the intake valve to provide a seal when the intake valve is in the closed position; and a controller responsive to the pressure sensor to send a signal to stop operation of the pump upon detection of the pressure condition.03-21-2013
20120224976AIR VOLUME CONTROL DEVICE AND AIR VOLUME CONTROL METHOD - An air volume control device determines whether or not a cooling capacity of an electronic device fulfills a predetermined cooling capacity. Then, if it is determined that the cooling capacity of the electronic device is failing to fulfill the predetermined cooling capacity, the air volume control device decreases the number of revolutions of a fan for cooling the electronic device. For example, the air volume control device compares a temperature of a heating element provided in the electronic device before a change in the number of revolutions of the fan with that after the change in the number of revolutions of the fan. If the temperature of the heating element is increased when the number of revolutions of the fan is increased, the air volume control device determines that the cooling capacity of the electronic device is failing to fulfill the predetermined cooling capacity.09-06-2012
20120237360Electric Vacuum Pump Backup Control System and Method - An electric vacuum pump backup control system includes a brake on/off switch, a primary electric vacuum pump control interfacing with the brake on/off switch, a secondary electric vacuum pump control interfacing with the brake on/off switch and the primary electric vacuum pump control and an electric vacuum pump interfacing with the primary electric vacuum pump control.09-20-2012
20110318192DEVICE FOR DELIVERING THICK MATTER - A device for conveying a mixture of substances includes a delivery cylinder having perforations and is configured to separate, through the perforations, mixture components from the mixture of substances. A material feed space is connected to an inlet side of the delivery cylinder and delivery line is connected to the outlet side. A delivery piston is reciprocatable through the material feed space and the delivery cylinder. A closure member is disposed at the outlet side of the delivery cylinder or in the delivery line and is movable between open and closed positions. A control unit is operable to move the delivery piston and a drive mechanism operable to move the closure member. The control unit is configured to respond to displacement signals of the delivery piston so as to cause a closing movement of the closure member and is configured to respond to output signals of an upstream pressure sensor so as to cause an opening movement of the closure member.12-29-2011
20110300001METHOD AND SYSTEM FOR SHAPE-MEMORY ALLOY WIRE CONTROL - A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire.12-08-2011
20080286118CAPACITY MODULATED SCROLL COMPRESSOR SYSTEM AND METHOD - A system and method for modulating capacity of a scroll compressor having a motor includes determining a target capacity of the scroll compressor, operating the motor at a first speed when the target capacity is within a first predetermined capacity range and at a second speed when the target capacity is within a second predetermined capacity range, determining a pulse width modulation cyclic ratio based on the target capacity and the first or second speed, and periodically separating intermeshing scroll members of the compressor according to the pulse width modulation cyclic ratio to modulate the capacity of the scroll compressor.11-20-2008
20100086412BLOWER04-08-2010
20120189463HYDRAULIC PUMP OPERATING DEVICE AND METHOD FOR USE IN HYDRAULIC SYSTEM - The rotational frequency of a variable speed motor is set to a normal rotational frequency setting value (N07-26-2012
20120189462Pump Assisted Refilling System for LPG Fuel Tanks - A pump assisted refilling system for LPG and other fuels wherein the fuel storage pressure is at, or close to, the vapor pressure of the fuel. A fuel pump is selectively activated to assist fuel delivery from the refilling fitting to the tank interior responsive to a determined fuel pressure condition of the fuel so that rapid refilling is always assured.07-26-2012
20100080712System and Method of Disabling an HVAC Compressor Based on a High Pressure Cut Out - A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the HVAC compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.04-01-2010
20100124509RECIPROCATING GAS COMPRESSOR WITH SPEED MODULATION OF COMPRESSOR DRIVER FOR PULSATION AVOIDANCE - A method for reducing pulsation in a gas compressor system. The compressor driver (engine or motor) is operated at a modulated engine speed. The average of the modulated speed is selected to achieve a desired pipeline flow. The modulation characteristics are determined to optimally reduce the pulsation response of the compressor system.05-20-2010
20120107137PORTABLE STEEL-REINFORCED HDPE PUMP STATION - The portable steel-reinforced HDPE pump station includes a vertically upright, cylindrical wet well fabricated from steel-reinforced plastic. Pumps are disposed in the wet well. A pipe connected to the pumps extends to the outside of the wet well to allow outflow of water to external systems. An access hatch covers the upper portion of the wet well and is arranged above grade. The remainder of the wet well is disposed in the ground, below grade. Vertically disposed sliding rails are attached inside the wet well, and extend upward from a working area of the well to the top of the well near the access hatch. The pumps are slidably attached to the rails to facilitate sliding installation and removal of the pumps by way of the access hatch. A water-receiving inlet pipe extends into the wet well, the inlet pipe allowing entry of water inside the wet well.05-03-2012
20110200450APPARATUS AND METHOD FOR TUNING PUMP SPEED - An apparatus for tuning pump speed at an optimal or desired speed using an automated method is disclosed. The apparatus includes a vacuum pump connected to a chamber for evacuating gas from the chamber. A sensor measures one or more characteristics, such as pressure, of the gas in the chamber. The measured characteristic is compared to a predetermined value. The speed of vacuum pump is adjusted based on the comparison until it falls in a desired range.08-18-2011
20110206537HYBRID ELECTRO-HYDRAULIC POWER DEVICE - A hydraulic power device for effecting operation of at least one load, the hydraulic power device including a motor having a predetermined motor speed rating and motor power rating, at least one pump operably coupled to the motor, the pump being configured to provide, to the at least one load, a predetermined hydraulic fluid flow at the predetermined motor speed rating, and a variable frequency drive connected to the motor, the variable frequency drive being configured to effect operation of the motor at a speed above the predetermined motor speed rating such that the at least one pump operates to provide an excess hydraulic fluid flow during operation of the motor substantially above the predetermined motor speed rating where the excess fluid flow is greater than the predetermined hydraulic fluid flow.08-25-2011
20080286117Pump with automatic deactivation mechanism - An automatic deactivation mechanism is configured for an air bladder pump having a casing and a motor located therein to pump air into an air bladder from the atmosphere and through an air valve connected through the casing. The automatic deactivation mechanism includes a housing positioned within the casing and has defined therethrough a first aperture in fluid communication with the atmosphere through the casing and a second aperture in fluid communication with the air bladder through the casing. Included within the housing are at least two switches and a diaphragm positioned between the switches. The housing is sealed so that when a threshold pressure is reached therein, at least one switch is triggered by deflection of the diaphragm to automatically deactivate the pump by de-energizing the motor.11-20-2008
20120294730SYSTEM AND METHOD FOR PROVIDING COMPRESSED AIR FROM AN ENGINE - A system for directing compressed air from an internal combustion engine that uses a piston cylinder of the internal combustion engine. The piston cylinder compresses the air and sends the air out of the piston cylinder through a port to a storage tank. A valve is located between the piston cylinder and the storage tank to control the flow from the piston cylinder to the storage tank. The stored air may be directed to and used in different components/systems within a vehicle, including the secondary air system.11-22-2012
20120070311System and Method for Pressure Compensation in a Pump - Systems and methods for maintaining substantially a baseline pressure in a chamber of a pumping apparatus are disclosed. Embodiments of the present invention may serve to control a motor to compensate or account for a pressure drift which may occur in a chamber of the pumping apparatus. More specifically, a dispense motor may be controlled to substantially maintain a baseline pressure in the dispense chamber before a dispense based on a pressure sensed in the dispense chamber. In one embodiment, before a dispense is initiated a control loop may be utilized such that it is repeatedly determined if the pressure in the dispense chamber is above a desired pressure and, if so, the movement of the pumping means regulated to maintain substantially the desired pressure in the dispense chamber until a dispense of fluid is initiated.03-22-2012
20130216396MODULAR FAN HOUSING WITH MULTIPLE MODULAR UNITS HAVING SOUND ATTENUATION FOR A FAN ARRAY FOR AN AIR-HANDLING SYSTEM - A modular fan housing configured to hold an array of motors and fans is provided. The modular fan housing is configured for use in an air-handling system that delivers air to a ventilation system for at least a portion of a building. The fan housing comprises a plurality of modular units configured to be stacked adjacent to one another in at least one row or column to form an array. The modular units each include an interior surface and have a front end and a back end that define a chamber. The chambers are configured to receive the motors and fans. Sound attenuation layers extend along at least a portion of the interior surface of the corresponding chambers. The sound attenuation layers are positioned between at least some of the adjacent chambers.08-22-2013
20090252616Variable Rate Pumping System - A pumping system comprising a motor, wherein the motor has an operating speed, a pump coupled to the motor, wherein the pump has a volumetric displacement, a fluid end coupled to the pump, wherein the fluid end is operable to draw fluid from an input and provide fluid to an output, and a control system operable to regulate the motor and the pump in order to provide fluid to the output at a selected pressure and flow rate within a continuous range of pressures and flow rates between the peak horsepower output and peak torque output of the motor.10-08-2009
20120195769SYSTEM AND METHOD FOR COMMUNICATION WITH AN INFUSION DEVICE - It may desirable to monitor or control a pump remotely. For example, the pump may be positioned near the patient, with remote control or monitoring of the pump occurring in a control room. In one exemplary embodiment, the pump is used in an MRI environment. In another exemplary embodiment, the pump is used in a hyperbaric chamber. The pump may monitor one or more physiological parameters and transmit them to the remote. The pump may also transmit information relating to the pump's operation. The pump may send the device and/or physiological data using one or more packets. The packets may consist of low priority sequential packets and high-priority asynchronous packets. The high-priority packets may enable the real-time monitoring of a patient's heart beat or other physiological parameter.08-02-2012
20100226792FAN CONTROL SYSTEM AND AIR CONDITIONER THAT INCLUDES THE SAME - A fan control system includes a first fan, a second fan that is adjacent to the first fan, a first motor that is configured to rotate the first fan, a second motor that is configured to rotate the second fan, and a control unit. The control unit is configured to control the rotational speeds of the first motor and the second motor, and to decrease the rotational speeds of both the first motor and the second motor when the rotational speed of the first motor must be decreased.09-09-2010
20100239433CONTINUOUS SUCKER ROD AND METHOD OF USING SAME - A continuous sucker rod preferably comprising fiberglass or composite material for use in an well is described herein. The continuous sucker rod may be connected at one end to a pump drive, via a polished rod, and at a second end to a downhole pump, via sinker bars or other weights. The continuous sucker rod preferably has at least two end fittings, one at each end of the continuous sucker rod. The end fittings, each having two ends and each being attached, at one end, to a respective end of the continuous sucker rod. The end fittings are preferably configured to enable connection to the polished rod and sinker bars respectively. The end fittings are connected to the continuous sucker rod so as to form wedges which enhance the connectability of the end fitting to the rod, and further, the wedge or wedges approach the rod asymptotically so as to avoid any abrupt discontinuities in the wedge or wedges thus substantially eliminating stress concentration areas and potential failure areas in the rod.09-23-2010
20100061865SYSTEM AND/OR METHOD FOR MONITORING AND/OR CONTROLLING THE RELATIVE INTERNAL AIR PRESSURE OF A FACILITY - A system is provided for maintaining a balanced interior air pressure in a building (03-11-2010
20110129354Vibration Protection In A Variable Speed Compressor - Vibration protection in a compressor system with a variable speed compressor may include operating a variable speed compressor of a compressor system at a first frequency, measuring a vibration of the compressor system at the first frequency, determining whether the vibration exceeds a maximum vibration value, and operating the variable speed compressor at an average frequency equivalent to the first frequency, when the vibration exceeds the maximum vibration value, by identifying an allowed upper frequency and an allowed lower frequency, calculating an upper operating time and a lower operating time, and operating the variable speed compressor at the allowed upper frequency for the upper operating time and the allowed lower frequency for the lower operating time.06-02-2011
20100008793SAFETY SWITCH ON A PERISTALTIC PUMP - A peristaltic pump is provided that is configured to facilitate safe maintenance of the pump. The pump can comprise a pump body having a pump head and a head cover and a safety switch mechanism. The safety switch mechanism can comprise one or more sensors that allow the pump to detect whether the head cover is in an open or closed position. When the pump is powered-on, the pump can be configured to enter a maintenance mode when the safety switch detects that the head cover is in the open position.01-14-2010
20110176931EFFICIENT VACUUM FOR A VEHICLE - An engine with an efficient selectively operable vacuum source is disclosed. In one example, an electric vacuum pump with oil wetted seals provides vacuum to a vehicle. The approach may provide for improved efficiency when generating vacuum.07-21-2011
20090232662METHOD FOR ESTIMATING PUMP EFFICIENCY - The present invention provides highly accurate methods for directly calculating pump fillage which avoid the need and expense of a pump dynamometer card and subsequent calculations.09-17-2009
20110255992Pump controller - The present invention provides a technique using current sensing to control the pressure at constant level without the direct sensing of the pressure. This technique will help to reduce dependency solely on switch or sensor and their non linearity and other associated problems such as the non-repetitive behavior, being affected by EMI etc. The technique includes using a pump controller featuring one or more modules configured to respond to one or more input signals containing information about current provided from a pump; and configured to provide one or more output signals containing information to control the pump to operate at a substantially constant pressure without the direct sensing of pump pressure. The one or more modules control the operation of the pump based at least partly on a table of characteristics related to voltage and current that is calibrated for each pump.10-20-2011
20120034103METHOD AND APPARATUS FOR MONITORING OF ESP - A method monitors an ESP with a pump for pumping oil, gas, water or other fluid media, which pump is driven by an electrical motor. Acoustical phenomena of the motor and/or the pump are used as a state variable for pumping the media. The acoustic phenomena are measured as electrical signals and the electrical signals are discriminated in respect to the pumped media. In the corresponding apparatus for monitoring of ESP, with pump section(s) for pumping a mixture of oil, gas and water, which is driven by a motor section(s), whereby at least one acoustic sensor is placed near the ESP.02-09-2012
20090317259System and Method for Explosion-Proof Pump - A System and Method for Explosion-Proof Pump is provided comprising a component being mated to an adjacent component by sealing means. An embodiment provides that the component is a switch housing having a cavity formed therein. A switch is secured in the cavity and the adjacent component is selected from the group access plate and motor housing.12-24-2009
20110052414Apparatus for Controlling a Pump - Disclosed is a controller for controlling a pump. The controller includes a sensor unit and a buoy unit. The sensor includes a base, a cylinder extended from a lower side of the base, a micro-switch provided on the base, a ferromagnetic tag connected to the micro-switch and a switch provided on the base. The switch is connected to the micro-switch on one hand and to the pump on the other hand. The buoy unit includes a buoy, a rod inserted through the buoy and a magnet connected to the rod. The rod is movably inserted in the sensor unit through the cylinder so that the magnet attracts the ferromagnetic tag to actuate the micro-switch when the level of sewage reaches an upper limit and that the magnet releases the ferromagnetic tag when the level of sewage reaches a lower limit.03-03-2011
20100215509SYSTEMS AND METHODS FOR PROGRAMMING OF A COOLING FAN VIA A SERIAL PORT COMMUNICATION MODE - Embodiments of the present disclosure provide a method that comprises, based upon receipt of a mode command, changing an operating mode of a fan motor controller of a fan to a serial port communication protocol, programming a memory of the fan motor controller with an operating parameter of the fan, and based upon receipt of a serial port command, changing the operating mode of the fan motor controller from the serial port communication protocol to another protocol.08-26-2010
20100196168PUMP END OF STROKE SENSOR - A prime mover includes a shaft assembly that is supported for reciprocal movement between first and second ends of a stroke, and that includes first and second portions having a first material, and a third portion in between the first and second portions, having a second material, different from the first material. A single inductive proximity sensor makes a first indication when proximate the first material, and makes a second indication, when proximate the second material. A portion of the sensor is proximate the first portion when the shaft is at the first end of the stroke, the same portion of the same sensor is proximate the second portion when the shaft is at the second end of the stroke, and the same portion of the same sensor is proximate the third portion the entire time the shaft is in between the first and second ends of the stroke.08-05-2010
20100068070FLOW CONTROL FOR FLUID HANDLING SYSTEM - A method of correcting fluid flow offset for an uncharacterized fluid handling system including a motor. The method includes running the motor at a reference fluid flow demand using generic coefficients, and changing fluid flow demand from the reference fluid flow demand until the motor signals a power limit condition. When the motor signals the power limit condition, the fluid flow demand is noted. The operational fluid flow demands are scaled by a ratio of the noted fluid flow demand to the reference fluid flow demand.03-18-2010
20110217182AIR MOVEMENT SYSTEM - The invention relates to an air movement system comprising a centrifugal fan unit, wherein the centrifugal fan unit comprises a centrifugal fan coupled to a drive unit, a control unit operationally coupled to said drive unit, an inlet piece forming a inlet duct to the centrifugal fan, which inlet duct has an end facing the centrifugal fan, and an outlet duct, wherein the inlet piece is provided with a first pressure tap and a second pressure tap, the second pressure tap being positioned at distance from the end of the inlet duct facing the centrifugal fan, and the control unit is configured to measure a pressure difference between the first and second pressure tap and to control the centrifugal fan in dependence of the measured pressure difference, characterized in that the first pressure tap is positioned at the end of the inlet duct facing the fan, and in that said control unit is adapted to maintain a set airflow rate out of said outlet duct based on said measured pressure difference via controlling of the rotational speed of said centrifugal fan.09-08-2011
20120308401PUMP UNIT - A pump unit includes a drive motor (12-06-2012
20120308400FAN CONTROL CIRCUIT - A fan control circuit of a computer includes a fan interface connected to a connector of a fan, a fan controller, a NOT gate, and an electronic switch. The fan controller outputs a PWM signal to the fan interface to control the operation of the fan, and includes a GPIO interface to output a voltage control signal to the NOT gate to switch the electronic switch on or off. A signal output of the electronic switch is connected to the fan interface. The voltage control signal is high level at the start up moment of the computer, and thus does not turn on the fan via the electronic switch. After a preset delay period, the voltage control signal is turned low by the fan controller so that the fan interface receives the PWM signal.12-06-2012
20110305584ADAPTIVE ACCURACY FOR ENTERAL FEEDING PUMP - A pumping apparatus for use with a pump set to deliver fluid through the pump set includes a housing capable of receiving at least a portion of the pump set. A pumping device is moveably mounted in the housing and includes a motor that turns independently from movement of the pumping device when activated. The pumping device contacting the pump set when the pump set is received by the housing so the pumping device acts on the pump set to produce fluid flow in the pump set upon activation of the motor.12-15-2011
20120148415PUMP ROTOR - The present invention relates to a pump rotor for a peristaltic hose pump, in particular a medical peristaltic hose pump, with at least one actuating device, by means of which the pump rotor can be actuated hydraulically and/or pneumatically. Furthermore the present invention in particular relates to a medical peristaltic hose pump and to a method for actuating a pump rotor of a peristaltic hose pump.06-14-2012
20120063918APPARATUS AND METHOD FOR DETERMINING CLEARANCE OF MECHANICAL BACK-UP BEARINGS OF TURBOMACHINERY UTILIZING ELECTROMAGNETIC BEARINGS - Apparatus and method for determining the clearance and wear of mechanical back-up bearings of turbomachinery utilizing electromagnetic bearings. In order to reduce the prospects of catastrophic failure during a shut-down or loss of electrical power, a rotating apparatus utilizes the electromagnetic bearings to manipulate the shaft to measure the clearance of the mechanical back-up bearings. When power is restored, a programmable controller provides power to the electromagnetic bearings to automatically move the shaft in accordance with a predetermined sequence to contact the mechanical back-up bearings to determine the clearance of the mechanical back-up bearings. These values are stored in the controller memory. The measured clearance is compared to prior clearance measurements of the mechanical back-up bearings to determine the wear of the back-up bearings. The actual wear is compared to the allowable wear for the bearings. If actual wear exceeds a predetermined value, a warning is generated. If the actual wear equals or exceeds the allowable wear, the controller automatically locks the turbomachinery from further operation until repair or replacement is accomplished. Otherwise, the controller centers the shaft to permit normal operation of the turbomachinery.03-15-2012
20120207617USE OF MOTOR PROTECTION SYSTEM TO PROTECT PROCESS OPERATION - Disclosed herein is an approach that uses a motor protection system to protect a process operation. In one aspect, a motor protection system in conjunction with a controller monitor the performance of redundant motor-driven prime movers having a lead motor-driven prime mover and a lag motor-driven prime mover. In one embodiment, the controller controls operation of the redundant motor-driven prime movers as a function of motor protection measurements generated from the motor protection system. In particular, the controller uses the motor protection measurements to determine if the lead motor-driven prime mover is in distress. The controller activates operation of the lag motor-driven prime mover in response to determining that the lead motor-driven prime mover is in distress. In one embodiment, the controller activates operation of the lag motor-driven prime mover prior to tripping the distressed lead motor-driven prime mover.08-16-2012
20120014811FAN APPARATUS - A fan apparatus comprises a fan module and an actuator. The actuator coupled to the fan module comprising a pair of guide rails and an actuating element. In one embodiment, the two ends of each actuating element slidably coupled with the corresponding pair of the guide rail respectively. When the actuating element is driven to slides on the guide rails, a reaction force acts on the fan module for lifting the fan module from an inserted position. In another embodiment, one end of the actuating element is coupled to one guide rail, while the other end of the actuating element is rotatably coupled to a protrusion part slidably coupled in the other guide rail. When the actuating element is driven to slide on one guide rail, a reacting force acts on the protrusion part for inserting the fan module into an inserted position or lifting the fan module therefrom.01-19-2012
20120301321FAN CONTROL CIRCUIT - A fan control circuit of a computer includes a fan interface connected to a connector of a fan, a fan controller and an electronic switch chip. The fan controller outputs a pulse width modulation (PWM) signal to the fan interface to control the operation of the fan, and includes a general purpose input/output (GPIO) interface to output a voltage control signal to the electronic switch chip to switch the electronic switch chip on or off. The voltage control signal is at a low level at the start up moment of the computer, and thus does not turn on the fan via the electronic switch chip. After a preset delay period, the voltage control signal becomes a high-level signal under the control of the fan controller so that the fan interface receives the PWM signal.11-29-2012
20120301320PUMP SYSTEM - A submersible pump system includes a submersible pump assembly having one or more stages of impellers and a submersible motor assembly that drives the pump assembly. The submersible pump assembly includes a motor housing, a motor within the motor housing for driving the pump assembly and a control module mounted to the motor housing for operating the motor. The control module is electrically connected to a power line and comprises a controller and a variable frequency drive driven by the controller. The controller operates the variable frequency drive to drive the motor to maintain a constant pressure output condition from the pump assembly.11-29-2012
20120063917ROUGHING PUMP METHOD FOR A POSITIVE DISPLACEMENT PUMP - In order to provide a simple and energy-efficient rough pumping method for a displacement pump (03-15-2012
20110091329Pumping System with Two Way Communication - A pumping system for moving water of a swimming pool includes a water pump, a variable speed motor, and an arrangement for controlling the variable speed motor. The pumping system further includes an auxiliary device operably connected to the arrangement for controlling, and an arrangement for providing two-way communication between the arrangement for controlling and the auxiliary device. The arrangement for controlling is capable of receiving a parameter from the auxiliary device through the arrangement for providing two-way communication. In one example, the arrangement for controlling is capable of independently controlling the variable speed motor without receipt of a parameter from the auxiliary device. In addition or alternatively, the arrangement for controlling is operable to selectively alter operation of the motor based upon the parameter. In addition or alternatively, the arrangement for controlling is configured to optimize a power consumption of the variable speed motor over time based upon the parameters received. A method for controlling the pumping system is also provided.04-21-2011
20120128505Method and System for Pump Priming - The disclosure describes systems and methods relating generally to filtration. Even more particularly, embodiments described herein relate to optimizing operating routines of a pump based on filter. Embodiments of priming routines described herein can perform a back pressure step to pressurize the filter from downstream and a back flush step to flush the filter from downstream.05-24-2012
20120213644ELECTRONICALLY CONTROLLED LIQUID DISPENSING SYSTEM WITH MODULAR TUBING AND POWER DESIGN - Apparatus is provided featuring a switch-mode power supply (SMPS) having a power circuit component in combination with a SMPS controller. The power circuit component may be configured to provide power to a pump that provides fluid from a container to some other device, including an appliance. The SMPS controller may be configured to receive signaling containing information about at least one control parameter selected from a group including a pressure at an outlet of the pump, a fluid level in the container and the temperature of a motor of the pump, and also may be configured to shut off the power provided to the pump based at least partly on the signaling received so that the power circuit component substantially does not draw power and heat up when the pump is shut off.08-23-2012
20120213643VEHICLE AUXILIARY PUMP CONTROL - A vehicle includes a main pump and an auxiliary pump, each configured to provide fluid to a hydraulic circuit. A motor is configured to drive the auxiliary pump. A controller is configured to determine a temperature of the motor, compare the temperature of the motor to a first predetermined operating threshold, and disable the auxiliary pump and enable the main pump if the temperature of the motor is above the first predetermined operating threshold. A method of controlling fluid flow in the vehicle includes determining a temperature of the motor, comparing the temperature to the first predetermined operating threshold, and disabling the auxiliary pump and enabling the main pump if the temperature of the motor is above the first predetermined operating threshold.08-23-2012
20090060749Molded Plug For A Compressor - A plug assembly for a compressor having a shell, a terminal body on the shell, and a conductor pin extending through the terminal body, wherein a connector body of the plug assembly includes a plurality of electrical receptacles for electrical communication with the conductor pin at least partially disposed within a fence disposed around the terminal body. The plug assembly may be formed of a thermoplastic or thermoset material having a tensile modulus between 9500 MPa and 18000 MPa, and/or about 30 percent glass fibers. At least one electrical receptacle may be housed by an inner core of the plug assembly for electrical communication with the conductor pin. An annular sealing member may be supported by an outer body of the plug assembly for sealingly engaging the fence.03-05-2009
20120263604HYDRAULIC PUMP CONTROL APPARATUS AND METHOD OF CONSTRUCTION MACHINE - Disclosed are a hydraulic pump control apparatus and a hydraulic pump control method of a construction machine. The hydraulic pump control apparatus includes a pump control unit for controlling a discharge pressure of a hydraulic pump driven by an engine. The pump control unit includes: a pressure setting value calculating unit configured to calculate a pressure setting value based on an engine output torque estimating value or an engine RPM; and a breakdown treating unit configured to select one of the pressure setting value and a pressure command value according to a breakdown of the swash plate angle sensor to output the selected value. Since the pump is controlled according to a pressure setting value obtained by calculating the pressure setting value based on the engine output torque estimating value, the absorption torque value of the pump does not exceed the maximum torque value of the engine even when the swash plate angle sensor breaks down. Accordingly, a phenomenon of stopping the engine can be prevented even if the swash plate angle sensor breaks down during a high-load operation of the engine.10-18-2012
20080298977Machine retarder - A system is provided for controllably absorbing energy associated with a machine. The system may include a power source configured to provide power to a hydraulic pump, wherein the hydraulic pump is configured to provide a flow of fluid to a hydraulic dissipation circuit and to one or more implement system hydraulic cylinders, and wherein the hydraulic dissipation circuit is configured to generate a load associated with the hydraulic pump. The system may also include at least one valve configured to provide the flow of fluid to the hydraulic dissipation circuit in response to one or more control signals and a controller configured to receive an input signal from an operator actuated device, and generate the one or more control signals based on the input signal.12-04-2008
20110033313Air Flow Control Apparatus - An apparatus includes a valve housing having an inlet port, a first chamber with a first outlet port, and a second chamber with a second outlet port. A first valve opens between the inlet port and the first chamber under a first level of pneumatic pressure at the inlet port. A second valve opens between the first chamber and the second chamber under a second, greater level of pneumatic pressure in the first chamber. A third valve opens between the second chamber and the first chamber under a third level of pneumatic pressure in the second chamber, with the third level being less than the first level.02-10-2011
20120321484Pump controller - The present invention provides a technique using current sensing to control the pressure at constant level without the direct sensing of the pressure. This technique will help to reduce dependency solely on switch or sensor and their non linearity and other associated problems such as the non-repetitive behavior, being affected by EMI etc. The technique includes using a pump controller featuring one or more modules configured to respond to one or more input signals containing information about current provided from a pump; and configured to provide one or more output signals containing information to control the pump to operate at a substantially constant pressure without the direct sensing of pump pressure. The one or more modules control the operation of the pump based at least partly on a table of characteristics related to voltage and current that is calibrated for each pump.12-20-2012
20120328452SYSTEM AND METHOD FOR LUBRICATING A FUEL PUMP - Systems and methods for diagnosing and operating an engine with a fuel pump that supplies fuel to a fuel injector that may be temporarily deactivated are described. In one example, injection of fuel may commence in response to a level of lubrication of a fuel pump. The system and methods may extend fuel pump life in systems where fuel injection may be deactivated.12-27-2012
20100080713System and Method of Disabling an HVAC Compressor Based on a Low Pressure Cut Out - A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the heating, ventilating, and air conditioning (HVAC) compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state.04-01-2010
20130121843COMPRESSOR DIGITAL CONTROL FAILURE SHUTDOWN ALGORITHM - A method of controlling the loading and unloading of a compressor includes selectively loading and unloading a compressor by engaging and disengaging, respectively, compressor members with the controller in response to system load data, monitoring at least one of the discharge pressure and the suction pressure at a predetermined time interval for a continuous time period, storing values based on the at least one of the discharge pressure and the suction pressure during the continuous time period, and determining a predetermined value indicative of compressor operation in which the compressor members are engaged. The method further includes comparing at least one of the stored values with the predetermined value and providing a signal to cease operation of the compressor when the comparison fails to indicate compressor operation in which the compressor members are engaged.05-16-2013
20110311371METHODS AND APPARATUS FOR COUPLING CAPACITORS - A method for supplying a plurality of capacitance values to a plurality of heating, ventilation, air-conditioning, and refrigeration (HVAC/R) components is provided. The method includes configuring a first set of terminals of a connection device to couple a first capacitor to the connection device and configuring the connection device to couple the first capacitor to at least one of the plurality of HVAC/R components. The method further includes configuring a second set of terminals of the connection device to couple a second capacitor to the connection device and configuring the connection device to selectively couple the second capacitor to at least one of the plurality of HVAC/R components.12-22-2011
20110311370SUMP PUMP SYSTEM WITH REMOTE CONTROL AND MONITORING - The present invention in several embodiments is a sump pump system with broad capabilities for remote and automatic operation. The sump pump system of the present invention is preferably connected to the internet and possesses means for communicating over the internet. The sump pump system could comprise redundant, auxiliary, and emergency devices to guard against failure or miss operation of the components of the system. Additionally, the system could comprise failsafe routines to combat the risk of flooding.12-22-2011

Patent applications in class CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR

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