One Condition Is Speed Of Pump Patents (Class 417/22)
  • Patent number: 11441348
    Abstract: A refrigerator and a method for controlling the same are disclosed, which may automatically open or close a door and a method for controlling the same. The refrigerator may automatically open or close door(s) of the refrigerator by controlling a motor. After lapse of a predetermined time after the door of the refrigerator has been closed, the refrigerator operates a motor with an output used when the door is not opened, such that the refrigerator may remove noise while simultaneously maintaining a constant door opening time when the door is opened. In addition, when the door opening signal time is detected, the refrigerator may immediately opens the door.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: September 13, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-In Eom, Young Kyun Jeong, Chan Young Park, Hyun Uk Park
  • Patent number: 11378474
    Abstract: This disclosure presents a dimensionless relationship between a fluid flow rate, a viscosity, and a brake horsepower (BHP) in a pump operation and a method that uses the dimensionless relationship to predict a BHP for viscous performance of a pump from water performance specifications. Using the dimensionless relationship, i.e., K-R number, the methods determine a BHP correlation that allows the prediction of the BHP specification to satisfy a pump performance metric at any given speed, flow rate, and viscosity. This prediction can be calculated from water performance specifications without physically testing the pump in the viscous implementation environment.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: July 5, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ketankumar Kantilal Sheth, Robert Charles de Long
  • Patent number: 11319794
    Abstract: A pumpjack monitor includes a processor and memory, a communicator for communicating with other monitors and a server, a sensor module having at least one strain gauge, and accelerometers for determining vibration and position of the monitor. Other sensors may be internal, including sensors for polished-rod rotation, and linked to the monitoring device wirelessly. Some embodiments serve as network hubs or bridges for other monitors. The server is configured to generate surface cards. A method for monitoring of pumpjacks uses the monitor to sense changes in pumpjack parameters, and communicate the changes to a server when changes exceed configurable thresholds. Some embodiments include determining location with GPS and/or relaying signals from other monitoring devices, smart power management, gas sensing, and relaying of signals from external wireless-equipped sensors such as valve position sensors, oil level sensors, and pressure sensors.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: May 3, 2022
    Assignee: 4IIII INNOVATIONS INC.
    Inventors: Kelly Fyfe, Kipling William Fyfe, Thomas Richard Williams
  • Patent number: 11060518
    Abstract: A reciprocating pump includes: a housing with a fluid channel that includes a pump chamber; a reciprocated member that is disposed in the housing to form the pump chamber, and reciprocable for suction and discharge of fluid; an actuator configured to reciprocate the reciprocated member; and a pressure gauge with a pressure receiving portion, configured to detect pressure of the fluid in the fluid channel via the pressure receiving portion. The housing includes an inner wall facing the fluid channel, and a flexible, membranous portion placed continuously next to the inner wall to face the fluid channel. The pressure gauge is attached to the housing such that the membranous portion is sandwiched between the pressure receiving portion and the fluid channel.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: July 13, 2021
    Assignee: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Kazukiyo Teshima, Daisuke Urata, Naoto Yamada, Takuya Murakami
  • Patent number: 10907631
    Abstract: Systems and methods are disclosed of monitoring performance of an incompressible fluid system. The system has a positive displacement pump and a high bandwidth pressure sensor. A method comprises sensing a pressure of the fluid with the pressure sensor, determining pump ripple frequency and hence the speed of the positive displacement pump, calculating the pump flow rate, determining a flow restriction of the fluid system based on the pressure and flow, and assessing or trending the fluid system flow restriction.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 2, 2021
    Assignee: Rolls-Royce Corporation
    Inventor: Alan Smith
  • Patent number: 10856449
    Abstract: One technique for improving cooling system efficiency is to operate cooling for a data center with a dynamic and distributed cooling system. A distributed cooling system may include multiple compressors operating cooperatively for cooling the data center. A dynamic cooling system may adjust operation of the compressors based on one or more parameters, such as inside temperature, outdoor temperature, inside humidity, outside humidity, and load on the data center. By appropriately controlling speeds of the compressors, the power efficiency of the cooling system may be improved by ensuring that all activated compressors are operating within their efficient operating range. By doing so, the cooling system may be controlled to obtain an approximately linear power consumption as a function of cooling load.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 1, 2020
    Assignee: Dell Products L.P.
    Inventors: Mark Mcgrath Bailey, Trey S. Wiederhold, Tyler B. Duncan, Ty R. Schmitt
  • Patent number: 10500602
    Abstract: An active flow control drag-induced damping reduction apparatus. The apparatus includes a variable frequency signal power supply; a jet generator defining an internal cavity and having pump member, and coupled to the variable frequency signal power supply to receive a control signal; a feedback sensor coupled to the pump member to generate a feedback signal measuring the reciprocating motion of the pump member; a detection circuit that receives the feedback signal and measures a difference compared to the variable frequency generator; and an adjustment circuit that receives the measured difference and tunes the variable frequency signal of the variable frequency signal power supply to maintain the jet generator at an optimum flow.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 10, 2019
    Assignee: The Boeing Company
    Inventor: Steven F. Griffin
  • Patent number: 10416685
    Abstract: An information collection system for a pump for removing fluid collected by a buildings drainage system from subterranean locations adjacent a building is provided. The system includes a sensor for sensing operation information regarding the operation of the pump and an information collection device operably connected to the sensor and adapted to receive the operation information. The system also includes an information storage device operably connected to the information collection device and adapted to store the operation information. The system further includes a retrieval device operably connected to the storage device and adapted to retrieve the operation information.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: September 17, 2019
    Assignee: Regal Beloit America, Inc.
    Inventor: Paul Steven Mullin
  • Patent number: 10132521
    Abstract: A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM) coupled to the thermostat. The ECM is configured to retrofit an existing non-ECM electric motor included in an HVAC application and to operate in one of a plurality of HVAC modes. The HVAC modes include at least one of a heating mode, a cooling mode, and a continuous fan mode. The HVAC mode is determined based at least partially on outputs provided by the thermostat.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: November 20, 2018
    Assignee: Regal Beloit America, Inc.
    Inventors: Roger Carlos Becerra, Steven A. Nardin, Michael R. Koller, Andrew C. Barry, Brian L. Beifus, Andrew M. Knollman
  • Patent number: 9976549
    Abstract: A method is used to control a torque of an electric motor of an electro-hydraulic system. The method includes selecting a value of a set point torque depending on a current pressure in a hydraulic circuit of the electro-hydraulic system. The method also includes determining a control signal for controlling the torque of the electric motor using a target torque and the set point torque.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 22, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Karsten Mueller, Volker Schueren, Dieter Holl, Bernd Spatz, Dirk-Walter Herold, Wolfgang Haug, Eberhard Schemm
  • Patent number: 9823629
    Abstract: A control device for a process, in which a controlled variable can be influenced with the aid of a plurality of different regulating units, which in particular are based on different physical principles. A set point and the controlled variable are fed to both a first controller and a second controller. The first controller is located as primary controller in automatic operation and has a regulating range of the first manipulated variable that is defined by limiting values. The second controller can be switched between automatic operation and tracking operation, in which the controller generates a predefined or predefinable constant value of the second manipulated variable. By means of a logic circuit, the second controller is switched to automatic operation if a limiting value of the first manipulated variable is reached, and otherwise to tracking operation.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: November 21, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Artur Kuprijanov, Andreas Lübbert, Bernd-Markus Pfeiffer, Sebastian Schaepe, Rimvydas Simutis
  • Patent number: 9682191
    Abstract: An infusion pump is provided for pumping fluid though an administration set at a constant flow rate. The pump includes a pumping mechanism for pumping fluid and operates at a pulse frequency, and a controller controls the pulse frequency. Additionally, the pump has one or more sensors configured for measuring at least one characteristic value relating to a status of the infusion pump. The controller is configured for causing the pumping mechanism to operate at a first pulse frequency, and the one or more sensors measure the characteristic value. When the measured characteristic value meets a threshold value, the controller causes the pumping mechanism to operate at a second pulse frequency different from the first pulse frequency.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: June 20, 2017
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventor: Hong Zhu
  • Patent number: 9624923
    Abstract: A control arrangement for controlling a piston pump unit for liquid chromatography, in particular high-performance liquid chromatography, is described. The piston pump unit has at least two piston-cylinder units which operate cyclically in a phase-offset manner and generate, at an outlet port, a predetermined flow of a liquid medium to be delivered. A system pressure is established at the outlet port, irrespective of an associated fluid load resistance. The control arrangement is configured to record the pressure in the cylinder volume of at least a first of the at least two piston-cylinder units. During a measurement phase of the compression phase of the first piston-cylinder unit or during a measurement phase of the decompression phase of the first piston-cylinder unit, the control arrangement stops the drive device for the first piston-cylinder unit for a predetermined time period and in the process records measurement data which characterize the time profile of the pressure.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 18, 2017
    Assignee: DIONEX SOFTRON GMBH
    Inventors: Gervin Ruegenberg, Richard Schloderer, Werner Tuchan
  • Patent number: 9410543
    Abstract: A pump controller causes a first plunger pump and a second plunger pump connected in series or in parallel to perform intake and compression actions alternately at substantially constant cycles, sets a pressurizing chamber of one of the plunger pumps to a state of a higher pressure than the pressurizing chamber of the other plunger pump, and performs flow rate control by adjusting lift amounts of the first plunger and the second plunger. Thus, it is possible to provide a pump for liquid chromatograph, and a liquid chromatograph, which are capable of reducing pulsations even when an ejection flow rate is changed.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 9, 2016
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Kenichiro Tokuo, Kenji Hiraku, Hironori Kaji, Daisuke Akieda, Kimihiko Ishii, Naoya Yasuhara
  • Patent number: 9335062
    Abstract: A controller for dynamically balancing air pressure in a building including at least a first room, includes a receiver, a processor, and a transmitter. The receiver is configured to receive an outdoor air pressure measured by an outdoor pressure sensor, and to receive a room air pressure measured by a room pressure sensor. The processor is configured to calculate a pressure set point based on the outdoor air pressure, to determine whether the room air pressure deviates from the pressure set point by a predefined threshold, and to generate instructions for a heating ventilation and air conditioning (HVAC) unit to adjust the room air pressure to the first pressure set point. The transmitter is configured to transmit the instructions to the HVAC unit. A system and a process for dynamically balancing air pressure in a building including at least a first room are also provided.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: May 10, 2016
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: John A. Goodfellow
  • Patent number: 9322603
    Abstract: A work machine includes a thermostat provided upon a path that conducts the cooling water to the radiator, and that opens and closes the path according to a temperature of the cooling water, a fan device that blows external air at the radiator, an output changeover switch that changes over output of the engine between high and low, a rotational speed setting unit that sets a rotational speed for the fan device according to the temperature of the cooling water, and a rotational speed adjustment unit that adjusts rotational speed of the fan device, wherein, within a temperature range for the cooling water in which the thermostat is fully opened from fully closed, the rotational speed of the fan device to be lower when the output changeover switch is changed over so as to limit the output of the engine.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: April 26, 2016
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Koji Hyodo, Kazuo Chounan, Tetsuji Tanaka
  • Patent number: 9206798
    Abstract: In a hydraulic pump control apparatus and method of a construction machine, the control apparatus includes a pump control unit for controlling discharge pressure of a pump driven by an engine. The control unit includes: a pressure setting value calculating unit which calculates a pressure setting value based on an engine output torque estimating value or an engine RPM; and a breakdown treating unit selects 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 calculated 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, and related engine stoppage is prevented even during a high-load operation.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: December 8, 2015
    Assignee: Doosan Infracore Co., Ltd.
    Inventor: Woo Yong Jung
  • Patent number: 9056166
    Abstract: An infusion pump is provided for pumping fluid though an administration set at a constant flow rate. The pump includes a pumping mechanism for pumping fluid and operates at a pulse frequency, and a controller controls the pulse frequency. Additionally, the pump has one or more sensors configured for measuring at least one characteristic value relating to a status of the infusion pump. The controller is configured for causing the pumping mechanism to operate at a first pulse frequency, and the one or more sensors measure the characteristic value intermittently. When the measured characteristic value meets a threshold value, the controller causes the pumping mechanism to operate at a second pulse frequency different from the first pulse frequency.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: June 16, 2015
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA
    Inventor: Hong Zhu
  • Patent number: 9045930
    Abstract: An electric circuit with speed control and diode separation for use with an electrically actuatable mechanism. An operator input provides a signal to a controller of the electric circuit. The controller causes a MOSFET relay to provide a voltage to the electrically actuatable mechanism. The relay is adapted to vary the voltage in response to pulse width modified signals from the controller.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: June 2, 2015
    Assignee: Parker-Hannifin Corporation
    Inventors: Matthew Olson, Paul Kubinski, Romell Alaman
  • Publication number: 20150019026
    Abstract: Systems and methods for detecting appliance pump cavitation or dry state are provided. An exemplary appliance can include a current measurement circuit configured to provide a feedback signal that describes an inverter current drawn by an inverter providing three-phase power to the pump motor. A control unit of an appliance can detect pump cavitation and dry state by monitoring the feedback signal. Another exemplary appliance can include a motor speed detection circuit configured to provide a motor speed signal describing the speed of the pump motor. The control unit of the appliance can monitor variance in pump motor speed to detect pump dry state or cavitation. An exemplary method includes monitoring either an inverter current used by an inverter to drive a motor or a variance in a rotational speed of the motor.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 15, 2015
    Inventors: Mark Thomas Fryman, Meher Prasadu Kollipara
  • Patent number: 8894379
    Abstract: Compressor including a housing (2) containing a compressor element (6) that is powered by a variable speed motor (7) with a control box (8) with a set maximum number of revolutions (Nmax) for the compressor element (6), an air cooling blower (10) which sucks air from the environment via an inlet (11) and blows it back to the environment through the housing (2) via an exhaust (12) and a cooling circuit (13) for the cooling of the gas which has been compressed by the compressor element (6), further wherein the control box (8) is equipped with an algorithm (24) that reduces the maximum allowed set number of revolutions (Nmax) to a defined level as soon as the monitored environmental temperature (T20) rises above a maximum set level (Tmax), and the maximum allowed set number of revolutions (Nmax) is increased as soon as the environmental temperature (T20) falls below the maximum set level (Tmax).
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: November 25, 2014
    Assignee: Atlas Copco Airpower, N.V.
    Inventor: Alexander Antoon Frans M. Smets
  • Patent number: 8874358
    Abstract: Route guidance devices, methods, and programs provide guidance for a vehicle that is provided with a drive motor and an engine as drive sources. The devices, methods, and programs acquire a departure point and a destination for the vehicle and specify one or more motor drive recommended links for which driving with the drive motor as the drive source is recommended. The devices, methods, and programs specify a route that includes only motor drive recommended links and by which the vehicle can drive from the departure point to the destination using only the drive motor as the drive source and output the specified route on a display.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: October 28, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Takashi Naito, Takashi Hayashi
  • Patent number: 8871088
    Abstract: The present invention provides a liquid delivery device for liquid chromatographs which, by performing liquid delivery at an accurate flow rate with limited pulsation, gives accurate results of analysis. The present invention, with a view to preventing erroneous operation due to errors in measurements at the time of judgment of completion of compression of liquid, establishes the judgment point before the pressure measured by a cylinder pressure detector agrees with the pressure measured by a discharge pressure detector and also calculates the point of completion of compression. Control in this manner prevents pressure fluctuation. It also calculates for control the point of completion of compression from the history of compression performed previously.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: October 28, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hironori Kaji, Hiroyuki Wada, Masato Fukuda
  • Patent number: 8874383
    Abstract: A pump assembly and maintenance system and method. An inventory of pump components has an identifier to track the pump component and a sensor to gather operating data associated with the pump component. A population of pumps is assembled from the pump components. The operating data are correlated with the pump components based on the identifiers in a network-accessible database. The pump components can include interchangeable pump body modules that are separately tracked, whereby the pumps can be repaired by removing and replacing the interchangeable pump body modules.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 28, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Philippe Gambier, Rod Shampine, Joe Hubenschmidt, Rajesh Luharuka, Hubertus V. Thomeer
  • Patent number: 8851862
    Abstract: Provided is a system for transporting an oil sand slurry, comprising a pump, upstream and downstream lines, a shaft connectable to the pump, a driving mechanism driving the pump and a regulator for regulating the torque applied to the shaft between positive and negative torque modes, to pump the slurry at higher or lower flow rates. Also provided is a method comprising pumping the slurry through a pipeline using a pump driven by a motorised shaft and adjusting the flow rate of the slurry by varying the torque applied to the motorised shaft between positive and negative torque modes. The oil sand slurry transportation system and method enable positive head (regular pump action) for normal and high flow rates and negative head (pump brake action) for low flow rates, which reduces system energy loss, pipeline wear, vapor breakout and sanding off.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 7, 2014
    Assignee: Suncor Energy Inc.
    Inventor: Mark L. Odegard
  • Publication number: 20140294599
    Abstract: A pump motor control system provides for a low-pressure hydraulic pump and a high-pressure hydraulic pump on one shaft of a pump motor. A method includes detecting information including engine speed, a shift range selected, a rotation speed of the pump motor, and hydraulic pressure in a high-pressure part, controlling the rotation speed of the pump motor to be the same as the engine speed, when engine is turned on and the P range or the N range is selected by the shift lever, generating hydraulic pressure for operating a friction element in the high-pressure part by increasing the rotation speed of the pump motor, when the shift lever is moved to the D range or R range, and keeping the hydraulic pressure in the high-pressure part stable, by controlling the rotation speed of the pump motor in accordance with the hydraulic pressure at the high-pressure part.
    Type: Application
    Filed: December 5, 2013
    Publication date: October 2, 2014
    Applicant: Hyundai Motor Company
    Inventors: Taehwan Wi, Jin Young Hwang, Se Hwan Jo
  • Publication number: 20140255210
    Abstract: A vehicle having a variable hydraulic pump may include a sun gear that receives a torque from a power source through an input shaft, a ring gear of which an interior circumference is with a distance from an exterior circumference of the sun gear, a planetary gear that is disposed between the interior circumference of the ring gear and the exterior circumference of the sun gear, a carrier that connects with an output shaft, a hydraulic pump that pumps oil through the output shaft that is connected to the carrier, and a motor that is disposed outside the ring gear to selectively rotate the ring gear.
    Type: Application
    Filed: July 31, 2013
    Publication date: September 11, 2014
    Applicant: Hyundai Motor Company
    Inventor: Jin Young Hwang
  • Publication number: 20140169984
    Abstract: The invention relates to a control method implemented in a processing unit (UC) used in the control of a multipump system, said multipump system comprising an inlet passage (IN) intended to receive a fluid, two pumps (P1, P2) connected in parallel to said inlet passage and an outlet passage connected to the outlets of the two pumps (P1, P2), at least one of the two pumps being controlled by a variable speed drive (VSD), each pump (P1, P2) being defined by a first characteristic curve (HQcurve—n), flow rate-manometric head at maximum speed, and by a second characteristic curve (PQcurve—n), flow rate-received power. The control method provides for determining the total flow rate (Qtotal) of the multipump system without using sensors such as flowmeters.
    Type: Application
    Filed: November 19, 2013
    Publication date: June 19, 2014
    Applicant: Schneider Toshiba Inverter Europe SAS
    Inventor: Sylvain COIN
  • Patent number: 8747293
    Abstract: A rotational pump capable of running at a rotational speed (n) having a system for direct or indirect measurement of pressure difference or flow rate across the pump, wherein a control system is designed to calculate an index of pulsatility (PI) of the pressure difference or flow rate, estimating the gradient of PI with respect to the rotational speed (dPI/dn) and regulating the dPI/dn to a pre-defined set-point or regulating the pump in a way that the dPI/dn is minimal.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: June 10, 2014
    Assignee: Berlin Heart GmbH
    Inventors: Andreas Arndt, Kurt Graichen, Peter Nüsser
  • Patent number: 8742750
    Abstract: A speed pick-up ring includes a main body having a plurality of targets and defining a plurality of notches. Each notch is disposed between adjacent targets. Each notch includes a base wall, a first sidewall and an oppositely disposed second sidewall. The base wall includes a convex portion. A fluid device includes a housing and a variable reluctance speed sensor engaged to the housing. The fluid device further includes a speed pick-up ring disposed within the housing. The speed pick-up ring includes a main body having a plurality of targets and defining a plurality of notches. Each notch is disposed between adjacent targets. Each notch includes a base wall, a first sidewall that is generally concave and an oppositely disposed second sidewall that is generally concave. The base wall includes a convex portion.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: June 3, 2014
    Assignee: Eaton Corporation
    Inventors: John Ryan Kess, John Charles Walters
  • Patent number: 8708428
    Abstract: In a pump control apparatus that controls the discharge of brake fluid using the rotation of a motor, the number of windings in a low speed circuit is set such that the motor operates at a second rotation speed when the low speed circuit is connected to a power supply. A high speed circuit shares a portion of the windings of the low speed circuit so that the motor operates at a first rotation speed when a power supply voltage is supplied to an input terminal which is disposed midway in the windings of the low speed circuit. An ECU determines the load state of the motor based on a difference between the output voltage at an output terminal and the power supply voltage.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: April 29, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masakuni Suzuki
  • Publication number: 20140093394
    Abstract: In accordance with one aspect, the present invention provides a pumping system for at least one aquatic application. The pumping system includes a pump, a motor coupled to the pump, an interface associated with the pump designed to receive input instructions from a user, and a controller in communication with the motor. The controller determines a blockage condition based on a power consumption value of the motor, and further includes an auto-restart function that is designed to allow the pump to automatically restart after detection of the blockage.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Inventors: Robert W. Stiles, JR., Lars Hoffmann Berthelsen, Peter Westermann-Rasmussen, Gert Kjaer, Florin Lungeanu
  • Publication number: 20140044561
    Abstract: A controller for controlling a frequency inverter of a positive displacement pump motor of a positive displacement pump. The controller comprises a control unit configured to produce a control variable (Ys) for a frequency inverter of a positive displacement pump motor depending on a reference variable (W) and a first actual operating parameter (X). According to the invention, the control unit is associated with logical means having a first threshold value defining means that are designed to determine at least one first threshold value (YGrenzmax, YGrenzmin) depending on the first actual operating parameter (X) and/or at least one further actual operating parameter (XH, YH, YHH) that could lead to a failure state of the positive displacement pump when exceeded or fallen short of.
    Type: Application
    Filed: April 26, 2012
    Publication date: February 13, 2014
    Inventors: Wolfgang Leiber, Martin Hoffmann
  • Patent number: 8632314
    Abstract: The invention reduces waste of flow volume of pressurized oil discharged from a hydraulic pump when the rotational speed of a cooling fan is increased to the target rotational speed. The target rotational speed of the cooling fan is set at a target rotational speed setting portion. An acceleration pattern for increasing the cooling fan to the target rotational speed is set at an acceleration pattern setting portion based on the rotational speed of the cooling fan, the target rotational speed set at the target rotational speed setting portion, and magnitude of force due to inertia of the cooling fan and the hydraulic motor. The rotational speed command value calculation portion controls the pressurized oil to be supplied to the hydraulic motor at a flow rate required. Thus, it is possible to reduce wasted relief flow volume.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: January 21, 2014
    Assignee: Komatsu Ltd.
    Inventors: Masaaki Imaizumi, Minoru Wada
  • Publication number: 20130343916
    Abstract: In accordance with embodiments of the present disclosure, a system may include a rotational component for moving air, a speed sensor, an electrical draw sensor, and a controller. The speed sensor may configured to determine a speed of the rotational component. The electrical draw sensor may be configured to determine an electrical draw of the air mover. The controller may be communicatively coupled to the rotational component, the speed sensor, and the electrical draw sensor, and may be configured to control the speed of the rotational component based on the speed and the electrical draw.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 26, 2013
    Applicant: DELL PRODUCTS L.P.
    Inventors: Robert Curtis, Chris E. Peterson
  • Publication number: 20130336804
    Abstract: Times of at least one of on cycles and off cycles of a pump operating in one of a sub-pump mode and a continuous pumping mode are monitored. A determination is made as to whether to switch the pump from the one of the sub-pump mode and the continuous pumping mode to the other of the sub-pump mode and the continuous pumping mode based upon the monitored times of the at least one of the on cycles and the off cycles of the pump. The pump is switched to the other of the sub-pump mode and the continuous pumping mode in response to determining to switch the pump from the one of the sub-pump mode and the continuous pumping mode to the other of the sub-pump mode and the continuous pumping mode.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 19, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David G. Robinson, Keith A. Wells
  • Patent number: 8545189
    Abstract: A method and an arrangement for controlling a pump station includes measurement of the surface level of a liquid (465) by means of a sensor (452) and controlling the electric drive (401, 420, 430) of the pump (440) to a predetermined speed of rotation when a specific surface level value has been reached. This predetermined rotation speed value is preferably the rotation speed at which the ratio of the flow rate to the consumed power, i.e. the efficiency, is optimal. The measurement of the surface level and the related data processing for control of the pump are performed in a frequency converter (420) in conjunction with the control.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: October 1, 2013
    Assignee: ABB Oy
    Inventors: Srikanth Venkatachari, Mikael Holmberg
  • Publication number: 20130251540
    Abstract: A displacement pump arrangement, method for operating the displacement pump arrangement and a control device for controlling the displacement pump arrangement provide rotational-speed-variable control of an expeller pump unit for feeding a fluid. The arrangement includes an expeller pump and a drive, the drive being composed of an electric drive motor and a frequency converter, and a control device. The control device controls a state value such as a final pressure of the expeller pump a setpoint value. The control device detects state values of a control variable are supplied by the drive, in particular relating to the position, rotational speed and torque of the drive motor, and adjusts the displacement pump output to reach the setpoint value without using sensors.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Applicant: KSB Aktiengesellschaft
    Inventors: Thomas PAULUS, Jochen SCHAAB
  • Publication number: 20130236331
    Abstract: A fluid compression system includes a gaseous fluid compressor having a fluid inlet and a compressed fluid discharge, a prime mover coupled to the gaseous fluid compressor in driving relation, and a demand sensor positioned to measure a compressor demand and output a demand signal. An engine control unit is coupled to the prime mover and is operable to measure prime mover speed and prime mover power output. The engine control unit sets a variable maximum rated speed that maintains the engine power below a predetermined limit. A compressor controller unit is arranged to receive the demand signal and vary an operating speed based in part upon the demand signal. The operating speed is limited to the maximum rated speed set by the engine control unit.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 12, 2013
    Applicant: Clark Equipment Company
    Inventor: William Roger Hutchinson
  • Patent number: 8517692
    Abstract: A method of controlling pressure in a mud pump system includes generating a pressure limiting factor output using a pressure feedback input and a motor speed input to calculate a fluid conductance estimate, maintaining the pressure limiting factor output at a maximum value based on a pressure set-point, continuously updating a normal fluid conductance value based on the fluid conductance estimate while the pressure limiting factor output remains at the maximum value, freezing the normal fluid conductance value, if the pressure limiting factor output is less than the maximum value, calculating a change in fluid conductance based on the normal fluid conductance value and the fluid conductance estimate, generating at least one adaptive gain based on the change in fluid conductance, and controlling a motor speed of a pump in the mud pump system based on the at least one adaptive gain.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: August 27, 2013
    Assignee: Omron Oilfield & Marine, Inc.
    Inventors: Fergus Hopwood, Arun Natarajan
  • Patent number: 8483898
    Abstract: A vehicle includes a clutch set, a tank with fluid, an auxiliary battery, an electric fuel pump, and a controller. The electric fluid pump delivers some of the fluid from the tank to a designated oncoming clutch of the clutch set. The controller calculates a predicted flow value for the oncoming clutch during the shift event, and selectively controls the speed of the pump using the predicted flow value during the shift event. The controller controls the pump using an actual flow value when the vehicle is not executing a shift event, i.e., when holding torque. The speed of the electric fluid pump is increased to a first calculated speed determined using the predicted flow value when the shift event is initiated and before filling of the oncoming clutch commences, and is reduced to a second calculated speed determined using the actual flow value when the shift event is complete.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: July 9, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Ali K. Naqvi, Jy-Jen F. Sah
  • Patent number: 8441222
    Abstract: A system for measuring current in an H-Bridge motor drive circuit and using that current to determine the output of a device powered by the motor. A particular embodiment is disclosed for a motor-driven fluid pump. Motor current is measured at predetermined pump pressures and flow rates to create calibration tables relating motor current to pump pressure. Once calibrated, the system determines pump pressure based on motor current by referring to the calibration tables. In an embodiment, the pump is driven to achieve a predetermined fluid dispense profile. The system monitors pump pressure by measuring motor current and determines if the dispense profile is being achieved and sets alarms if predetermined thresholds are not maintained. The system also detects pump wear based on the current measurements and issues warnings to the user in such conditions.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: May 14, 2013
    Assignee: Integrated Designs, L.P.
    Inventors: Donovan Keith Manzarek, John Laessle, John Charles Vines
  • Patent number: 8376714
    Abstract: A variable water pump control apparatus, may include a detecting portion detecting engine speed, operation of an idle stop and go system (ISG), coolant temperature, operation of a blower, and outside temperature, a variable water pump selectively circulating a coolant through an engine, and a control portion controlling the variable water pump according to the detected information including operating conditions and outside environmental factors, and a variable water pump control method may include detecting a driving condition and an environmental condition of a vehicle, and engaging or releasing a clutch of a variable water pump according to a detected condition so as to selectively circulate a coolant.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: February 19, 2013
    Assignees: Hyundai Motors Company, Kia Motors Corporation
    Inventor: Dong Won Park
  • Patent number: 8371823
    Abstract: The present invention provides an apparatus and method for controlling the operation of an electric oil pump for creating a working fluid pressure in a transmission and a clutch for a hybrid vehicle, which can accurately reflect the viscosity characteristics of oil to accurately control the operation of the pump, instead of measuring the temperature of the oil to reflect the state of the oil. In preferred embodiments, the present invention provides an apparatus for controlling the operation of an electric oil pump, the apparatus including: a current detector for detecting a current applied to a motor of an electric oil pump; a rotational speed detector for detecting a rotational speed of the motor; and a controller for calculating a load torque of the motor based on the detection values of the current detector and the rotational speed detector, calculating a target rotational speed based on the detection values, and controlling the operation of the motor based on the target rotational speed.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: February 12, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hak Sung Lee, Seung Ki Kong, Jin Sook Lee, Jae Shin Yi, Yeon Ho Kim, Baek Yu Kim, Sang Hyun Jeong, Jong Hyun Kim
  • Patent number: 8368329
    Abstract: Methods and apparatuses for improving cooling fan operation are disclosed. In one embodiment, a cooling fan's speed is maximized by adjusting a PWM signal driving the fan to change the switching point of the fan motor. In another embodiment, a method for starting a low speed cooling fan by incrementally increasing the amplitude of the PWM signal applied to the fan is disclosed. In a further embodiment, a method for controlling a fan and a fan sensor is disclosed. In this embodiment, a PWM signal is generated, a fan is driven using the PWM signal, a cycle of the PWM signal is modified, and the fan sensors is driven using the PWM signal during the cycle. In a further embodiment, a fan incorporating these improvements is disclosed.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: February 5, 2013
    Assignee: Apple Inc.
    Inventors: John M. Depew, Mike Culbert, Keith Cox
  • Patent number: 8360736
    Abstract: A method of controlling a motor operating a pumping apparatus of a system includes determining a trip value for a parameter, floating the trip value, and monitoring the operation of the pump. Monitoring the operation of the pump includes determining a value for the parameter, comparing the value to the trip value, and determining whether the comparison indicates a condition of the pump. The method of controlling the motor also includes controlling the motor to operate the pump based on the condition of the pump.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 29, 2013
    Assignee: Regal Beloit EPC Inc.
    Inventors: Brian Thomas Branecky, William Louis Mehlhorn
  • Patent number: 8348624
    Abstract: A method for controlling the motor of an air handling system to provide a desired output of flowing air therefrom while minimizing the power used by the motor, including operationally connecting a switched reluctance electric motor to a blower, operationally connecting an electronic controller to the switched reluctance electric motor, operationally connecting at least one sensor to the electronic controller, measuring at least one environmental parameter with the at least one sensor, inputting the desired air flow into the electronic controller, calculating the minimum motor speed necessary to provide the desired air flow, and sending a control signal from the electronic controller to the motor to control the motor to the minimum motor speed necessary to provide the desired air flow.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: January 8, 2013
    Assignee: Universal Blower Pac, Inc.
    Inventors: Andrew Carl Frey, Andrew Martin Placek
  • Patent number: 8303260
    Abstract: The present invention provides protection for centrifugal pumps while differentiating between dangerous operating conditions (e.g. dry running, minimum flow and runout) and/or conditions where transient conditions (e.g. closed valve operation) may occur and the protection can be revoked once the condition clears. The methodology utilizes a calculated flow value which can be mathematically determined from a calibrated closed valve power vs speed curve and/or various pump and motor parameters such as speed, torque, power and/or differential pressure or from calibrated flow curves stored in the evaluation device. The calculated flow value is then compared to threshold values of flow associated with these adverse operating conditions.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: November 6, 2012
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Anthony E. Stavale, Nicolas W. Ganzon
  • Patent number: 8297369
    Abstract: Embodiments of the invention provide a fire-extinguishing system for injecting foamant into a stream of water. The system can include a flow meter determining a flow rate of the stream of water and a foam pump having an inlet coupled to a supply of foamant and an outlet coupled to the stream of water. The system includes a servo motor driving the foam pump. The servo motor includes a sensor used to determine a rotor shaft speed and/or a rotor shaft torque. A controller can control an operating speed of the servo motor using closed-loop control depending on the flow rate and the rotor shaft speed and/or the rotor shaft torque.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: October 30, 2012
    Assignee: Sta-Rite Industries, LLC
    Inventors: Jonathan Gamble, Ron Flanary, Robert L. Hosfield, Harold McCabe, Martin Piedl, Charles Ford, Troy Anderson
  • Patent number: 8266943
    Abstract: In a flow rate estimation device of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 18, 2012
    Assignee: Sun Medical Technology Research Corporation
    Inventors: Takayuki Miyakoshi, Kenji Yamazaki