In Response To Pump Speed Patents (Class 417/42)
  • Patent number: 11898550
    Abstract: System/method for real-time monitoring and control of pump operations at a well provide a pump control system that uses pump fillage with a proportional-integral-differential (PID) based algorithm to control positive displacement pump operations. The pump control system/method obtains measured or inferred pump speed from available pump speed data and, using certain pump characteristics provided by the well operator, calculates a theoretical fluid flow rate based on the pump speed. The pump control system/method thereafter compares the calculated theoretical fluid flow rate to a measured or observed fluid flow rate to calculate a pump fillage. The calculated pump fillage is then provided as a process input to the PID based algorithm along with a desired pump fillage from the well operator. The PID based algorithm processes the calculated pump fillage and the desired pump fillage using tuning parameters to determine an optimum pump speed based on the desired pump fillage.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: February 13, 2024
    Assignee: Schneider Electric Systems USA, Inc.
    Inventors: James Redmond, Zackery Sobin, Scott Guimond
  • Patent number: 11903163
    Abstract: The present disclosure refers to methods of employing a computer comprising a pulse width modulated controlled cooling fan in an immersion cooling process. The present disclosure also refers to devices therefore. Such methods and devices employ a direct conversion or a probabilistic approach to emulate the operation of a pulse width modulated controlled cooling fan. The aforementioned methods and devices may be particularly useful for fans having a fan speed of 25,000 rpm or higher.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: February 13, 2024
    Assignee: TMGCore, INC.
    Inventors: Michael McSorley, Randall Coburn
  • Patent number: 11898531
    Abstract: A variable speed pumping system includes a generator motor including a frequency converter, in which the variable speed pumping system, in the pumping mode, supply a power command to the generator motor to perform power control, and the power control correction signal generator adds a value obtained by multiplying a signal based on a difference between the power input command and an actual power input measured by a power detector in the pumping mode by a constant gain to a signal based on the deviation and inputs the added value to an integration control element to generate the power control correction signal based on an output signal of the integration control element.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: February 13, 2024
    Assignee: HITACHI MITSUBISHI HYDRO CORPORATION
    Inventor: Masahiro Yoshida
  • Patent number: 11879472
    Abstract: A control system for an electric motor for a fluid moving apparatus includes a drive circuit and a processor. The drive circuit regulates power supplied to the motor to generate fluid flow. The processor is coupled to the drive circuit and controls the drive circuit to operate the motor at a first speed and torque, and at a second speed and torque, receive a first flow corresponding to the first speed and torque, determine a second flow based on a ratio of the first flow to the first speed, and corresponding to the second speed and torque. The processor is configured to define an algorithm based on the first and second speed, torque, and flow, compute a set point for a demanded flow using the algorithm, and control the drive circuit based on the set point to supply power to the motor and generate the flow.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: January 23, 2024
    Assignee: Regal Beloit America, Inc.
    Inventors: Bin Yang, Brian Lee Beifus, Roger Carlos Becerra
  • Patent number: 11746634
    Abstract: A method may include receiving power supply-related information, cost-related information, power demand-related information, and operational priority or site configuration-related information associated with hydraulic fracturing rigs. The hydraulic fracturing rigs may be each associated with a fuel consumption component or an emissions component. The method may further include receiving operational data and determining operational parameters based on the operational data and emissions output predictions for the hydraulic fracturing rigs. The method may further include outputting the operational parameters to a computing device or a controller. The method may further include, based on outputting the operational parameters, receiving operational feedback data and determining whether to modify the operational parameters.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: September 5, 2023
    Assignee: Caterpillar Inc.
    Inventors: Perry D. Converse, Casey Alan Otten, Joseph C. Bufkin, Zhijun Cai, Baoyang Deng
  • Patent number: 11692513
    Abstract: Electric engine to provide thrust to fly an aircraft. Engine includes housing, air inlet, shaft, bladed rotor having a plurality of magnets secured on shaft, stator having plurality of coils positioned so as to interact with plurality of magnets and an exhaust nozzle. Powering coils causes interaction with magnets that results in bladed rotor rotating and pressurizing and accelerating air received via air inlet and expelling via exhaust nozzle to provide thrust. Engine may include generator having stator with coils secured to shaft via bearings and plurality of rotors with magnets secured to shaft to rotate with shaft. Magnets rotating past coils results in electric generation. Second hollow shaft may be mounted to shaft with bearings and generator may be located with hollow shaft. Second bladed rotor may be connected to, and rotate, second shaft. Engine may include ducts external to bladed rotor and fan to route air therein.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: July 4, 2023
    Inventor: Yuriy Radzikh
  • Patent number: 11686511
    Abstract: A method of cooling a motor coupled to a compressor of a chiller includes adjusting a position of a motor cooling valve located fluidly between the motor and a refrigerant source, using a motor temperature control system coupled to the motor cooling valve to regulate an amount of refrigerant introduced into the motor from the condenser according to a temperature control scheme performed as a function of a monitored temperature in the motor, a first temperature threshold, and a second temperature threshold lower than the first temperature threshold. The temperature control scheme includes a motor cooling control process that adjusts the position of the motor cooling valve based on a stator winding temperature set point relating to stator windings of the motor. A proportionally limited close command override associated with a first temperature range above the second temperature threshold proportionally limits a close command provided to the motor cooling valve.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: June 27, 2023
    Assignee: Johnson Controls Tyco IP Holdings LLP
    Inventor: Curtis Christian Crane
  • Patent number: 11614162
    Abstract: A method of controlling an electric oil pump (EOP) of a vehicle includes: confirming a gear shift type when a gear shift of a vehicle is started; compensating for the number of revolutions of the EOP according to the confirmed gear shift type; confirming whether a measured line pressure converges on a command line pressure while the compensating for the number of revolutions of the EOP according to the gear shift type is performed; and, when it is determined that the measured line pressure does not converge on the command line pressure, additionally compensating for the number of revolutions of the EOP.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: March 28, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Bong Uk Bae, Se Hwan Jo, Seong Min Son, Ki Bum Kim, Jin Young Hwang, Kyung Moo Lee
  • Patent number: 11611285
    Abstract: In a power converter, an inductance L of a reactor and a capacitance C of a capacitor satisfy a condition of the expression (1) below. In the power converter, a current-limiting circuit between an AC power source and the capacitor is unnecessary. Herein, ?m ([A·s]) is a value of a ratio of a maximum rated current squared time product to a maximum rated output current of diodes of a rectifier circuit, Pmax is a maximum power consumption of the motor, Vac is a voltage value of a three-phase AC voltage, and a value of a constant a is 4.3 a · C · C L · Vac 3 P max ? ? m .
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: March 21, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hirotaka Doi, Masaki Kouno, Tomoisa Taniguchi
  • Patent number: 11566666
    Abstract: A processing machine includes: a static pressure bearing configured to support a drive shaft; a fluid feeder configured to output a fluid to be supplied to the static pressure bearing, in accordance with rotation of a servomotor; a sensor configured to detect a physical quantity of the fluid output from the fluid feeder; and a control unit configured to control the rotation speed of the servomotor according to the physical quantity of the fluid.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: January 31, 2023
    Assignee: FANUC CORPORATION
    Inventors: Yuuta Ishii, Hiroshi Minami
  • Patent number: 11560906
    Abstract: A combined valve for insertion into an elongated bore of a power unit body of a hydraulic power unit may have an elongated carrier for receiving a relief and a check valve. The valve may also have a register arranged at a first axial position of a longitudinal axis of the carrier for calibration of the relief valve. The valve may also have a check valve coupled to the carrier at a second axial position along the longitudinal axis of the carrier. The valve may also have a relief valve coupled to the carrier at a third axial position along the longitudinal axis of the carrier. A minimal distance between the first and the second axial position may be less than a minimal distance between the first and the third axial position.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: January 24, 2023
    Assignee: Dana Motion Systems Italia S.R.L.
    Inventor: Piergiorgio Trinchieri
  • Patent number: 11495807
    Abstract: A fuel cell module is configured or operated, or both, such that after a shut down procedure a fuel cell stack is discharged and has its cathode electrodes at least partially blanketed with nitrogen during at least some periods of time. If the fuel cell module is restarted in this condition, electrochemical reactions are limited and do not quickly re-charge the fuel cell stack. To decrease start up time, air is moved into the cathode electrodes before the stack is re-charged. The air may be provided by a pump, fan or blower driven by a battery or by the flow or pressure of stored hydrogen. For example, an additional fan or an operating blower may be driven by a battery until the fuel cell stack is able to supply sufficient current to drive the operating blower for normal operation.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: November 8, 2022
    Assignee: Hydrogenics Corporation
    Inventor: Nathaniel Ian Joos
  • Patent number: 11396876
    Abstract: A control device that controls a target vacuum pump including a motor, including: a decision unit that decides, using at least one of target state quantities at a time of a past stop process of the target vacuum pump or another vacuum pump wherein the target state quantities are state quantities which fluctuate in accordance with a load at a time of a process of stopping a vacuum pump, a normal fluctuation range or a normal time fluctuation behavior of the target state quantity at the time of the stop process; and a control unit that controls the motor, wherein the control unit compares the target state quantity at the time of the process of stopping the target vacuum pump with the normal fluctuation range or the normal time fluctuation behavior, and changes a method of controlling the motor during the stop process depending on the comparison result.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: July 26, 2022
    Assignee: EBARA CORPORATION
    Inventors: Keiji Maishigi, Tetsuro Sugiura, Atsushi Shiokawa
  • Patent number: 11396839
    Abstract: A hydraulic drive fan control device is provided with a variable displacement hydraulic pump, a hydraulic motor, a hydraulic drive fan that is driven by the hydraulic motor, a flow amount control valve, a rotational speed detector that detects a rotational speed of an engine, and a controller. The controller outputs a first valve control signal to the flow amount control valve and outputs a first pump control signal to the hydraulic pump to rotate the hydraulic drive fan at a first rotational speed, and outputs a second valve control signal to the flow amount control valve and outputs a second pump control signal to the hydraulic pump, thereby stopping the rotation of the hydraulic drive fan.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 26, 2022
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Takaaki Tanaka, Masatsugu Arai, Takayuki Sato, Naoki Fukuda, Jun Ikeda, Ryuji Kouno
  • Patent number: 11365739
    Abstract: A management and control method for at least one operation parameter of a pressurization system operated by an electric motor, the method comprising the steps of: detection of an operating pressure value at a delivery duct of the pressurization system, by means of a single pressure sensor; estimation of a hydraulic flow rate and a hydraulic head by means of an algorithm which is implemented in a control software based on the operating pressure value detected by means of the single pressure sensor; estimation of a motor rotation speed of the pressurization system based on the operating pressure value and on the number of blades of the impeller of said pressurization system as a result of said estimation; and processing of an on/off signal of the pressurization system. Also disclosed is a pressurization system, comprising a pressure value and a control electronic unit adapted to perform said method.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: June 21, 2022
    Assignee: CALPEDA S.P.A.
    Inventors: Tiziana Baroncini, Gianluca Marangon, Alberto Marchetti, Ivan Menara
  • Patent number: 11208822
    Abstract: One aspect of the invention provides a system including: a liquid filter configured for fluidic communication with a fluid repository; a flow sensor in fluidic communication with the liquid filter; a variable-speed pump in fluidic communication with the liquid filter and the flow sensor; and a processor in electronic communication with the flow sensor and the variable-speed pump. The processor is configured to: determine a total volume threshold for a filtration procedure of the fluid repository; identify a set of fluid flow activities performed by the variable-speed pump; determine a remaining volume for completing the filtration procedure by reducing the total volume threshold by a volume of fluid moved by the variable-speed pump during the set of fluid flow activities; and determine, from a set of energy-expenditure factors and the remaining volume, an activation schedule and an activation power output of the variable-speed pump for completing the filtration procedure.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: December 28, 2021
    Assignee: Poolside Tech, LLC
    Inventors: William R. Doan, Stan Reznik, Calvin Irwin
  • Patent number: 11104992
    Abstract: Embodiments of the invention relate to a substrate processing apparatus. In one embodiment, a substrate processing apparatus includes a plurality of process units. The process unit includes a process chamber for processing a substrate, an exhaust conduit connected to the process chamber and an exhaust pump arranged in the path of the exhaust conduit. The substrate processing apparatus further includes a connecting conduit connected to the exhaust conduits of the process units in the upstream of the exhaust pump and a switching unit which switches an exhaust path of the process chamber to the other exhaust pump in the other process unit via the connecting conduit.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 31, 2021
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Atsushi Sano
  • Patent number: 11066912
    Abstract: A system for hydraulically fracturing an underground formation in an oil or gas well, including a pump for pumping hydraulic fracturing fluid into the wellbore, the pump having a pump shaft, and an electric motor with a motor shaft mechanically attached to the pump to drive the pump. The system further includes a torsional coupling connecting the motor shaft to the pump shaft. The torsional coupling includes a motor component fixedly attached to the motor shaft and having motor coupling claws extending outwardly away from the motor shaft, and a pump component fixedly attached to the pump shaft of the pump and having pump coupling claws extending outwardly away from the pump shaft. The motor coupling claws engage with the pump coupling claws so that when the motor shaft and motor component rotate, such rotation causes the pump component and the pump shaft to rotate, thereby driving the pump.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 20, 2021
    Assignee: U.S. Well Services, LLC
    Inventors: Joel N. Broussard, Jeff McPherson, Robert Kurtz, Jared Oehring
  • Patent number: 10982409
    Abstract: An excavator operating cycle is detected, and a load sensor senses a physical characteristic of a load moved during the operating cycle. The location where the load is moved to is also sensed. An amount of material moved over a set of operating cycles is determined, and an action signal is generated to control the excavator based upon the calculated amount of material.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: April 20, 2021
    Assignee: Deere & Company
    Inventors: Lance R. Sherlock, Mark J. Cherney, Robert C. Moore
  • Patent number: 10851774
    Abstract: A controller for operating a rod pumping unit at a pump speed. The controller includes a processor configured to operate a pump piston of the rod pumping unit at a first speed. The processor is further configured to determine a pump fillage level for a pump stroke based on a position signal and a load signal. The processor is further configured to reduce the pump speed to a second speed based on the pump fillage level for the pump stroke.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: December 1, 2020
    Assignee: Ravdos Holdings Inc.
    Inventors: Omar Al Assad, Rogier Sebastiaan Blom, Gary Hughes, Justin Edwin Barton, Peter Westerkamp
  • Patent number: 10815987
    Abstract: Protecting a hydrocarbon pump from excessive flow rates in a hydrocarbon fluid system comprising an electrical motor for driving the pump. For each of a plurality of gas volume fraction values of the hydrocarbon fluid, establishing a maximum torque limit for the pump by mapping the maximum allowable torque of the pump as a function of the differential pressure, thereby creating a plurality of maximum torque curves, each representing the maximum torque limit for a unique gas volume fraction value. Establishing a master maximum torque curve which represents the maximum torque limit for all gas volume fraction values. Monitoring the torque of the pump and the differential pressure across the pump. Based on the monitored differential pressure and using the master maximum torque curve, establishing a maximum allowable torque for the pump. Taking action if the monitored torque exceeds the established maximum allowable torque.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: October 27, 2020
    Assignee: FMC Kongsberg Subsea AS
    Inventors: Karen Todal, Helge Grøtterud
  • Patent number: 10781668
    Abstract: Providing power to a downhole-type tool includes positioning a downhole-type electric motor in a wellbore, electrically connecting a variable speed drive to the electric motor with three-phase conductors extending between the variable speed drive and the electric motor, where the variable speed drive controls and supplies power to the electric motor through the three-phase conductors, diverting at least a portion of a power supply from the three-phase conductors to a rectifier, and supplying, from the rectifier, the diverted portion of the power supply to at least one downhole-type tool proximate to the electric motor, the at least one downhole-type tool operable using the diverted portion of the power supply.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: September 22, 2020
    Assignee: Upwing Energy, LLC
    Inventor: Patrick McMullen
  • Patent number: 10697452
    Abstract: An oil pressure control device for a vehicle is configured such that, when switching from an oil pressure supply by means of a mechanical oil pump driven by a motor/generator to an oil pressure supply by means of an electric oil pump driven by a sub-motor, a supply ratio of oil supplied from the mechanical oil pump and a supply ratio of oil supplied from the electric oil pump, are adjusted based on an oil pressure difference between a first oil pressure and a second oil pressure, via first and second flapper valves. When the first oil pressure becomes less than or equal to a pump drive threshold, an increase in the second oil pressure is initiated, and the first oil pressure and the second oil pressure are made to match at a predetermined equilibrium oil pressure higher than a required line pressure.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 30, 2020
    Assignee: JATCO LTD
    Inventors: Yutaka Shimizu, Shusaku Katakura, Yusuke Ota, Youko Yoshioka, Yukiyoshi Inuta, Tomoyuki Koike
  • Patent number: 10540594
    Abstract: A system and method are provided. The system includes a feature calculator calculates features of a Pressure Volume diagram. The system further includes a pumpjack condition separator separates normal pumpjack conditions from abnormal pumpjack conditions using a hierarchical decision tree, the conditions being determined using the features. The system also includes a compound indicator generator generates a compound indicator when a predetermined number of at least one of features and conditions exceed respective thresholds. The system additionally includes an abnormal PV diagram indicator provides a user-perceptible indication that the PV diagram is abnormal when the compound indicator exceeds a compound indicator threshold.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 21, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Li Li, Wen Ting Mo, Ji Jiang Song, Chunhua Tian, Feng Juan Wang
  • Patent number: 10514040
    Abstract: A vacuum system includes a vacuum pump and an electric motor for driving the vacuum pump. A cooling arrangement cools the vacuum system. A control performs at least one of decreasing voltage and increasing frequency of a signal applied to the electric motor to decrease an amount of magnetic flux generated in the electric motor instead of decreasing the current applied to the electric motor to arrive at a desired torque generated by the electric motor in response to pumping requirements of the vacuum pump.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: December 24, 2019
    Assignee: Edwards Limited
    Inventors: James Alexander Haylock, Richard Lee Harkin, Ian Keech, Jian Li
  • Patent number: 10465495
    Abstract: A device for detecting temperatures of a rod on a well having a housing; a clamp to secure the housing to a post of the well; a thermal radiation sensor secured to the front end of the housing; a visual radiation sensor secured to the front end of the housing, the visual radiation sensor is vertically aligned with the thermal radiation sensor; a microcontroller system placed inside housing, the microcontroller system includes a microcontroller, a non-volatile memory, and a serial interface in electronic communication; a position device placed inside the housing; a wireless device placed inside the housing; output device placed in the interior cavity of the housing; the microcontroller is in electronic communication with the serial interface for communicating with the visible radiation sensor, the thermal radiation sensor, the output module, the wireless module, and the position module.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 5, 2019
    Assignee: Petrolog Automation, Inc
    Inventors: Cesar Augusto Chavez Rico, Carlos Andree Labrado Mendias
  • Patent number: 10408205
    Abstract: A method and system for determining the pump fillage of a sucker rod pumping system using torque feedback when pumping wellbore fluids from the particular well on which the sucker rod pumping system is installed. During the pump stroke, a microprocessor samples torque of the pump's mechanical system at an associated horsehead position at regular intervals and once the stroke is completed the raw torque samples and associated horsehead positions are placed in an array, the array of raw torque samples and horsehead positions can be filtered by the microprocessor into a second filtered array and then converted by the microprocessor into a rotatum array (derivative of torque with respect to time) of one or both of the raw or filtered arrays and stored as a rotatum array. The down stroke portion of the rotatum array is then analyzed by the microprocessor to determine the horsehead position when the piston of the down hole pump encounters wellbore fluid in the well (pump fillage).
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: September 10, 2019
    Assignee: Schneider Electric Systems Canada Inc.
    Inventors: Zackery Sobin, Scott Guimond, James Redmond
  • Patent number: 10408206
    Abstract: Methods and apparatus to determine parameters of a pumping unit for use with wells are disclosed. An example apparatus includes a housing and a processor positioned in the housing. The processor is to determine a first load on a polished rod of a pumping unit, to estimate a first torque of a motor of the pumping unit, and determine a first torque factor for the pumping unit. The processor is to, based on the first load, the first torque, and the first torque factor, determine a phase angle of a counterbalance of the pumping unit or a moment of the counterbalance.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: September 10, 2019
    Assignee: BRISTOL, INC.
    Inventor: Thomas Matthew Mills
  • Patent number: 10296016
    Abstract: This invention provides, in various embodiments, a variable frequency drive system for controlling a pump driven by a variable frequency electric motor, with the pump in fluid communication with a fluid system. The drive system of this invention improves the efficiency of the prior variable frequency drive systems by inserting into the memory of the variable frequency drive the maximum flow required for the particular flow system in which the pump is operating and adding an initial pump starting module that limits the initial starting flow rate from the pump to the desired maximum flow rate for the system, which is separately calculated.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: May 21, 2019
    Assignee: Taco, Inc.
    Inventors: Bryan Payne, Eugene Fina, Steven K. Sullivan, Keith M. Desrosiers
  • Patent number: 10197062
    Abstract: An aero-engine low pressure pump is provided for supplying fuel at a raised pressure to a high pressure pump. The low pressure pump has a pumping mechanism which raises the pressure of fuel flowing though the mechanism. The low pressure pump further has electrical motor which drives the pumping mechanism. The low pressure pump further has a variable frequency motor drive which supplies electrical power to the electrical motor. The variable frequency motor drive measures the electrical power supplied to the electrical motor. The low pressure pump further has a control unit which compares the measured electrical power to a reference power, and, when the measured electrical power is less than the reference power by a predetermined amount, controls the motor drive to increase the power supplied to the electrical motor thereby increasing the pressure rise produced by the pumping mechanism.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 5, 2019
    Assignee: ROLLS-ROYCE PLC
    Inventors: David Brookes, Martin K. Yates
  • Patent number: 10125772
    Abstract: The invention relates to a method of monitoring an impeller pump used in a medical application, wherein the structure-borne noise arising in the impeller pump is measured and this measured structure-borne noise is compared with a reference curve and/or with a limit value, wherein a signal is output as a sign for a disturbance of the operation of the impeller pump. The invention further relates to a blood treatment apparatus in which the aforesaid method is carried out.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: November 13, 2018
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Alexander Heide, Christoph Wiktor
  • Patent number: 9989063
    Abstract: A monitoring device for monitoring power consumption of a magnetic bearing vacuum pump rotatably driven by a motor and configured such that a rotor is magnetically levitated and supported by a magnetic bearing, comprises: a calculator configured to calculate the power consumption of the magnetic bearing vacuum pump, the power consumption of the magnetic bearing vacuum pump being obtained by adding power consumption of the motor based on a motor rotational speed and a motor current value and power consumption of the magnetic bearing together; and a display controller configured to display, on a display device, the power consumption of the magnetic bearing vacuum pump calculated by the calculator.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 5, 2018
    Assignee: SHIMADZU CORPORATION
    Inventor: Nobuhiko Moriyama
  • Patent number: 9879688
    Abstract: A control method and apparatus for startup of turbocompressors to avoid overpowering a driver of the turbocompressor. In a first embodiment, the control system monitors input signals from transmitters of various control inputs. When the input signals exceed threshold values, the control system begins to close the antisurge valve. In a second embodiment, the antisurge valve begins to close after a predetermined time measured from the time startup is initiated. In both embodiments, the antisurge valve continues to ramp closed until the compressor has reached its operating zone, or until the compressor's operating point reaches a surge control line, at which point the antisurge valve is manipulated to keep the compressor from surging.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: January 30, 2018
    Assignee: Compressor Controls Corporation
    Inventors: Saul Mirsky, Wayne Jacobson, Jeff McWhirter
  • Patent number: 9329580
    Abstract: An electronic control by frequency inverter of the displacement system of an irrigation or fertirrigation set is made up of structured pipelines, in which the water distribution sprayers are mounted, and which are coupled to each other, and supported by movable towers which are moved by gear motors driving by means of cardans the wheel gear that in turn drive pneumatic wheels, moving the structure about a fixed point, or pivot point, which is the central tower. The driving of the gear motors of each tower is performed by an electric control unit via a frequency inverter, with analogic signal, preferably a potentiometer, or position encoder digital sensor or optical sensor of alignment with relation to the front and back tower.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: May 3, 2016
    Assignee: FOCKINK INDÚSTRIAS ELÉTRICAS LTDA.
    Inventors: Kurth Heuert, Maurício Oberdorfer, Aldo Fernando Baum
  • Patent number: 9234517
    Abstract: A method of operating an oil well comprises applying through a variable frequency drive AC electrical energy from a power grid to an AC electric motor to operate a drive mechanism of an oil well pump. The motor speed is regulated in a manner to optimize oil production and maximize the operational life of the drive mechanism, decreasing motor speed by transferring the electrical energy to the power grid and increasing motor speed by transferring the electrical energy from the power grid to the motor. The drive mechanism has a predetermined stroke cycle and, over the course of each stroke cycle, the motor is operated at different regulated speeds initiated when the drive mechanism is at a predetermined position in each stroke cycle.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: January 12, 2016
    Assignee: HAROLD WELLS ASSOCIATES, INC.
    Inventors: Lloyd Wentworth, Craig Lamascus
  • Patent number: 9228590
    Abstract: Method for controlling a compressor element of a screw compressor, where the compressor element has a housing with two meshing helical rotors supported in the housing in the axial direction using at least one axial bearing. The method has a process A and/or a process B, where process A has a first step of switching on a first magnet during start-up of the compressor element, such that the magnet exerts a force on the rotor that is directed from an outlet side to an inlet side, and of switching off this first magnet during nominal operation of the compressor element; and where process B has a first step of keeping a second magnet switched off during start-up of the compressor element, and switching on this second magnet during nominal operation of the compressor element, such that this second magnet exerts a force that is directed from the inlet side to the outlet side.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: January 5, 2016
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Johan Nachtergaele, Simon Peter G. De Bock
  • Publication number: 20150147188
    Abstract: Disclosed is a high volume low speed (HVLS) fan that is designed to circulate air in large buildings for cooling, heating, and ventilation. A fan with a diameter between 8 to 24 feet consisting of a plurality of blades, with each in the shape of a tapered airfoil, is driven by a direct drive transverse flux electric motor to produce a very large slowly moving column of air. The HVLS system preferably includes motion and angular shutdown, voltage recognition, blade size recognition and data logging for recording the last 100 or so hours of operation to facilitate warranty applicability and assist in trouble shooting as well as software updates and programming via Bluetooth and internet keypad.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventor: Michael W. Danielsson
  • Publication number: 20150139815
    Abstract: An oil pressure control device for supplying oil pressure by rotating a hydraulic pump, by means of a motor, comprises an oil pressure sensor; a speed instruction operation unit for outputting a speed instruction value, based on a difference between an oil pressure determination value from the oil pressure sensor and an oil pressure instruction value; a torque instruction value operation unit for calculating a torque instruction value, based on a difference between a speed determination value and the speed instruction value; and a current control unit for controlling a current of the motor, based on the torque instruction value, and adds the load variation compensation speed outputted from the load variation compensation unit and the speed instruction value.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventor: Tomohiro Shibata
  • Publication number: 20150117987
    Abstract: Provided is a substrate treating apparatus. The substrate treating apparatus includes: a transfer chamber conveying a substrate; a process chamber disposed adjacent to the transfer chamber and performing a treating process o the substrate; and a drive assembly supplying a power by which a component of the transfer chamber or the process chamber operates, wherein the drive assembly includes: a cylinder connected to pipes; a piston disposed to be movable inside the cylinder and connected to the component by a drive shaft; and a pipe control unit automatically adjusting a moving speed of the piston.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventors: Jin Ho CHOI, Ju Mi YOO
  • Publication number: 20150098837
    Abstract: In at least one illustrative embodiment, a diaphragm pump may comprise a housing defining a first pumping chamber, a second pumping chamber, and a hydraulic fluid chamber, a first flexible diaphragm separating the first pumping chamber from the hydraulic fluid chamber, a second flexible diaphragm separating the second pumping chamber from the hydraulic fluid chamber, a rod mechanically linking the first flexible diaphragm and the second flexible diaphragm such that an expansion of one of the first and second flexible diaphragms exerts a contraction force on the other of the first and second flexible diaphragms, and a piston disposed within the hydraulic fluid chamber and configured to reciprocate to cause a hydraulic fluid contained within the hydraulic fluid chamber to alternately exert an expansion force on the first and second flexible diaphragms.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Inventors: Warren A. Seith, Aaron M. Crescenti
  • Publication number: 20150078917
    Abstract: A converterless motor-driven pump system includes an off-grid prime mover. The off-grid prime mover has a rotational driveshaft and operates in response to a throttle control command to control a rotation speed of the rotational driveshaft. An electric power generator is driven by the off-grid prime mover to generate AC power. A variable speed induction motor is directly powered by the electric power generator. A pump that may be submersible is driven by the at least one variable speed induction motor. A system controller that may be local or remote is programmed to generate the throttle control command in response to one or more pump operating characteristics such that the off-grid prime mover, the electric power generator, and the variable speed induction motor together operate to regulate a pressure at the inlet of the electric pump.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David Allan Torrey, Deepak Aravind
  • Publication number: 20150044061
    Abstract: A method for controlling a rotational speed of a compressor train that can be driven at an adjustable rotational speed using a drive unit, a corresponding arrangement and a compressor train with a frequency converter-guided drive unit that can drive the compressor train at an adjustable rotational speed, and a frequency converter guiding the drive unit is provided. A load value describing a dynamic torsion load in the compressor train is measured at a current rotational speed of the compressor train driven by the drive unit. The load value is compared to a predetermined limit value and, if the load value satisfies a predetermined condition relative to the predetermined limit value, the current rotational speed in the compressor train is adjusted using the drive unit. The arrangement has a detection device and a control unit, which are designed to perform the method.
    Type: Application
    Filed: March 5, 2013
    Publication date: February 12, 2015
    Inventor: VOLKER HÜTTEN
  • Publication number: 20150023801
    Abstract: A rotation speed control circuit with function of auto-calibrating rotation speed error is disclosed. The rotation speed control circuit includes a first multiplexer, a second multiplexer, an error amplifier and a current compensation circuit. In calibration mode, the rotation speed control circuit selects a calibration clock signal and a calibration voltage through the first multiplexer and the second multiplexer correspondingly according to a mode switch signal, and adjusts current value of a first current accordingly. In other words, the rotation speed control circuit utilizes the first current to compensate error of the external capacitor through the calibration clock signal fixed and the calibration voltage fixed in the duration of calibration mode, so as to avoid that aging of the external capacitor leads to rotation speed error and then affects the whole operation.
    Type: Application
    Filed: October 31, 2013
    Publication date: January 22, 2015
    Applicant: ANPEC ELECTRONICS CORPORATION
    Inventors: MING-JUNG TSAI, CHING-SHENG LI, KUN-MIN CHEN, CHIEN-CHENG CHEN
  • Publication number: 20150004002
    Abstract: A speed-based system for controlling a pump displacement to control a pump flow rate of a hydraulic pump in a vehicle, such as a hybrid. The system includes a plurality of sensors, a controller, and a hydraulic pump. The controller is configured to receive data from the sensors, ascertain a speed of the vehicle, determine a target pump displacement, and transmit the target pump displacement. The target pump displacement is less than a predetermined maximum value when the speed of the vehicle is greater than a first predefined threshold, and equal to the predetermined maximum value when the speed of the vehicle is less than or equal to the first predefined threshold. The hydraulic pump is configured to ascertain an actual pump displacement, receive the target pump displacement from the controller, and alter the actual pump displacement to the target pump displacement.
    Type: Application
    Filed: October 30, 2013
    Publication date: January 1, 2015
    Applicant: Robert Bosch GmbH
    Inventors: Michael Sowards, Brian Leslie, Frank Kachinski
  • Patent number: 8905721
    Abstract: A fan control system. The fan control system has a programmable microcontroller to receive an input signal and a rotation speed signal corresponding to the actual rotation speed of the fan motor, determining an output signal according to the input signal and the rotation speed signal, and outputting the output signal; and a fan-driving unit to receive the output signal and adjusting the rotation speed for driving the fan motor according to the output signal. The rotation speed is in a relation of a multi-stage function to the input signal.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: December 9, 2014
    Assignee: Delta Electronics Inc.
    Inventors: Wen-Chuan Ma, Pou-Tsun Kuo, Ming-Shi Tsai, Wen-Shi Huang
  • Publication number: 20140341751
    Abstract: The present invention relates to a control device for a radiator fan, in particular for a radiator fan of a motor vehicle, having an external control device which is designed to generate a controlled variable for an electric motor of the radiator fan according to a first predefined setpoint value, and having an internal control device which is designed to control the motor current of the electric motor of the radiator fan according to a predefined first motor current maximum value if the controlled variable which is generated by the external control device assumes such a value that the motor current exceeds the predefined first motor current maximum value. The present invention also relates to a radiator fan arrangement and to a method for controlling a radiator fan.
    Type: Application
    Filed: December 6, 2012
    Publication date: November 20, 2014
    Inventors: Karsten Ude, Stefan Zick
  • Patent number: 8892372
    Abstract: A method and apparatus for operating a pumping system includes the following: determining a motor operating parameter of a motor configured to drive a pump in a well; determining a pump operating parameter of the pump based on the motor operating parameter; operating the pump in a first mode to determine pump characteristics at a desired fluid level; generating first mode output data based on operation of the pump in the first mode; operating the pump in a second mode based on the first mode output data; determining an estimated fluid level in the well based on the motor operating parameter, the pump operating parameter and the first mode output data; and adjusting the pump speed based on the estimated fluid level in order to maintain a desired fluid level.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: November 18, 2014
    Assignee: Unico, Inc.
    Inventor: Ronald G. Peterson
  • Publication number: 20140334941
    Abstract: Provided is a pump apparatus capable of improving the performance in a wide operation range from an operation area with a low pressure and a high flow rate to an operation area with a high pressure and a low flow rate while suppressing a rated output of a motor used to drive a pump. A rotation speed of a motor 20 is controlled so that the rotation speed of the motor decreases with an increase in the load of the motor 20 driving a pump unit 10, the rotation speed thereof increases with a decrease in the load thereof, and the load does not exceed a predetermined upper limit. For this reason, it is possible to improve the performance in a wide operation range from an operation area with a low pressure and a high flow rate to an operation area with a high pressure and a low flow rate compared to a method of the related art of uniformly keeping a rotation speed of a motor.
    Type: Application
    Filed: February 19, 2014
    Publication date: November 13, 2014
    Inventors: YASUKI WADA, TAKAYUKI TSUJIMOTO
  • Publication number: 20140314582
    Abstract: A pumping system for moving water of a swimming pool includes a water pump and a variable speed motor. The pumping system further includes means for determining a first motor speed of the motor, means for determining first and second performance values of the pumping system, and means for comparing the first and second performance values. The pumping system further includes means for determining an adjustment value based upon the comparison, means for determining a second motor speed based upon the adjustment value, and means for controlling the motor in response to the second motor speed. In one example, the pumping system includes means for determining a value indicative of a flow rate of water moved by the pump. In addition or alternatively, the pumping system includes a filter arrangement. A method of controlling the pumping system for moving the water of the swimming pool is also disclosed.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: Robert W. Stiles, JR., Lars Hoffmann Berthelsen, Peter Westermann-Rasmussen, Gert Kjaer, Florin Lungeanu
  • Publication number: 20140314583
    Abstract: A system for controlling the mixing ratio of a multi-component mixture including a first pump connectable to a source of a first component and a second pump connectable to a source of a second component. The first and second pump being associated with at least one linear sensor for generating an output indicative of actual pump speed or shaft displacement of the pump. The system further includes a control circuit operative to utilize the output of the linear sensor of one of the pumps to generate a control signal for controlling the output of the other pump.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 23, 2014
    Applicant: EPIC Solutions, Inc.
    Inventors: Jeffrey Arnold Wilkens, Timothy John Marthe, Justin D. Almen