Processes Patents (Class 417/53)
  • Patent number: 10683855
    Abstract: A method for operating an axial piston machine of swashplate design, in which a swashplate is settable by means of an adjustment device, and in which a controlled variable of the axial piston machine is regulated by predetermining a manipulated variable. Under the assumption of a constant intended value of the controlled variable, a future profile of the controlled variable is ascertained using a model of the axial piston machine in which respective current values of at least one operating variable of the axial piston machine, which comprises the controlled variable, and a current value of the manipulated variable are taken into account. A value to be set for the manipulated variable is ascertained and set taking into account the future profile of the controlled variable.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: June 16, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Paul Zeman, Adrian Trachte, Daniel Seiler-Thull, Martin Wegscheider, Peter Altermann, Andreas Kugi, Wolfgang Kemmetmueller
  • Patent number: 10670010
    Abstract: A pump controller features a signal processor configured to respond to signaling containing information about three corresponding discrete arrays with respect to a discrete motor speed for each system position at a motor speed derived from 3D discrete distribution surfaces of motor power, pump differential pressure and flow rate by respective numerical interpolations; and determine corresponding signaling containing information to control a pump, or pumps in a system of pumps, or a system of pumps based upon a corresponding pump differential pressure and flow rate at the motor speed for a corresponding power reading value determined using a numerical interpolation of the three corresponding discrete arrays, the signaling received. The signal processor is configured to provide the corresponding signaling as control signaling to control the pump, or the pumps in the system of pumps, or the system of pumps.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 2, 2020
    Assignee: Fluid Handling LLC
    Inventors: Andrew A. Cheng, Kyle D. Schoenheit
  • Patent number: 10672205
    Abstract: A vehicle including a fluidic subsystem composed of an electric motor, a motor driver and a fluidic pump that is disposed in a fluidic circuit of the vehicle is described. A controller includes an instruction set that is executable to determine operating parameters associated with the fluidic subsystem, and determine a plurality of power efficiency parameters for the fluidic subsystem based upon the operating parameters. The power efficiency parameters include a hydraulic power efficiency, an electro-mechanical power efficiency and an electric power efficiency. The controller can determine a state of health for the fluidic subsystem based upon the power efficiency parameters, and detect a fault in the fluidic subsystem when the state of health is less than a threshold state of health. The fault can be communicated to a vehicle operator.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 2, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Shiming Duan, Yao Hu, Christopher H. Knieper
  • Patent number: 10670003
    Abstract: A variable stroke high pressure pump is disclosed. The pump uses a wobble plate design with dynamically variable tilt to provide continuous adjustment of pump stroke length and output. Dynamically variable tilt is accomplished using a linearly actuated tilt thruster rotationally coupled to the drive shaft to maintain a selected tilt of the wobble plate through the rotation of the wobble plate.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 2, 2020
    Assignee: CW HOLDINGS LTD.
    Inventors: Jianke Wang, Zhe Huangpu, Milton Anderson, Xiaonan Zhai, Leslie Wise
  • Patent number: 10648311
    Abstract: Embodiments include a hydraulic fracturing system for fracturing a subterranean formation. The system includes an electric pump, arranged on a first support structure, the electric pump coupled to a well associated with the subterranean formation and powered by at least one electric motor, and configured to pump fluid into a wellbore associated with the well at a high pressure so that the fluid passes from the wellbore into the subterranean formation and fractures the subterranean formation. The system also includes support equipment, arranged on a second support structure, electrically coupled to the electric pump, wherein the support equipment includes at least a transformer for distributing power to the electric pump, the power being received from at least one generator at a voltage higher than an operating voltage of the electric pump.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 12, 2020
    Assignee: U.S. Well Services, LLC
    Inventors: Jared Oehring, Brandon N. Hinderliter, Lon Robinson
  • Patent number: 10626856
    Abstract: A cryogenic fluid pump includes an outlet tube extending along the pump centerline, the outlet tube having an outlet passage that is fluidly in communication with the combined outlet and with a pump outlet opening, and a shroud that extends concentrically along the outlet tube and has an inner diameter that is larger than an outer diameter of the outlet tube such that a gap is formed in a radial direction between an inner surface of the shroud and an outer surface of the outlet tube, the gap extending along at least a portion of the outlet tube.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: April 21, 2020
    Assignee: Caterpillar Inc.
    Inventors: Dana R. Coldren, Dennis H. Gibson, Ankababu Kandlagunta, Sridhar Thangaswamy, Alan R. Stockner
  • Patent number: 10546159
    Abstract: A system and method handles one or more pumping units in an out-of-balance condition. Sensing equipment monitors operating parameters related to balance of each of the one or more pumping units. Processing equipment determines the out-of-balance condition in at least one of the one or more pumping units based on the monitored operating parameters. A first correction to a counterbalance parameter of the at least one pumping unit can be calculated, such as a new position or weight of the counterbalance, so the out-of-balance condition can be corrected by implementing the new position or weight at the at least one pumping unit. A second correction to a stroke parameter of the at least one pumping unit can be calculated, such as a new stroke rate or pattern, so operation of the pumping unit can be maintained despite the out-of-balance condition.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 28, 2020
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Victoria M. Pons, Lewis Lu, Jordan F. Teichman, Chen Lin, Bryan Paulet, Behrouz Ebrahimi
  • Patent number: 10532321
    Abstract: An energy recovery device is provided in a seawater desalination system for desalinating seawater by removing salinity from the seawater. A pressure exchange chamber for pressurizing seawater by a pressure of concentrated seawater discharged from a reverse-osmosis membrane-separation apparatus includes a first supply and discharge port connected to a switching valve for performing supply and discharge of liquid, a second supply and discharge port connected to a directional control valve for performing supply and discharge of liquid, a flow resistor provided at the first supply and discharge port side in the chamber and configured to regulate the flow, and a flow resistor provided at the second supply and discharge port side in the chamber and configured to regulate the flow, and a flowmeter provided between the two flow resistors and configured to measure a flow rate of the liquid in the chamber.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: January 14, 2020
    Inventor: Tamami Takahashi
  • Patent number: 10485922
    Abstract: A system for delivery of a volume of infusible fluid. The system includes a controller configured to calculate a trajectory for delivering infusible fluid, the trajectory comprising at least one volume of fluid, and determine a schedule for delivering the at least one volume of fluid according to the trajectory, wherein the schedule comprising an interval and a volume of infusible fluid for delivery. The system also includes a volume sensor assembly for determining the at least one volume of fluid delivered, wherein the controller recalculates the trajectory based on the volume of fluid delivered.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 26, 2019
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, John M. Kerwin, Gerald M. Guay, Larry B. Gray, Richard J. Lanigan, Stephen L. Fichera, Colin H. Murphy, Thomas F. Soldau, David Blumberg, Jr.
  • Patent number: 10406281
    Abstract: The disclosure is directed to a pressure sensor of an implantable medical device. The pressure sensor may utilize detect fluid pressure based on a changing capacitance between two capacitive elements. The pressure sensor may define at least a portion of a fluid enclosure of the IMD. In one example, the pressure sensor has a self-aligning housing shape that occludes an opening in the pump bulkhead of the IMD. An operative surface of the pressure and the portion of the fluid enclosure may be formed of a corrosion resistant and/or biocompatible material. A first capacitive element of the pressure sensor may be a metal alloy diaphragm that deflects in response to external fluid pressure. A second capacitive element of the pressure sensor may be a metal coating on a rigid insulator sealed from the fluid by the diaphragm and a housing of the sensor.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: September 10, 2019
    Assignee: Medtronic, Inc.
    Inventors: Keith A. Miesel, James M. Haase, Chris J. Paidosh, Darren A. Janzig, Timothy J. Denison
  • Patent number: 10408220
    Abstract: A method is provided for operating a fluid conveying device of a motor vehicle having at least one aerodynamic bearing. The method reduces the rotational speed of the aerodynamic bearing to a rest speed, wherein the rest speed is below a lifting speed, in which case the bearing builds up an air film for bearing free of mixed friction, and wherein the rest speed is above a lowering speed, in which case the bearing has reduced the air film such that mixed friction occurs. The fluid conveying device is operated at the rest speed.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 10, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Johannes Schmid, Simon Grilc, Fabian Brandl
  • Patent number: 10407042
    Abstract: A device is provided for predicting the remaining lifetime of a component in a compressed air supply system for a vehicle. This device includes a memory unit for a value related to the degradation of the component, at least one first input for a usage quantity which is a measure for the operating time and/or number of operating cycles of the component and/or for the amount of compressed air delivered by the compressed air supply system, at least one second input for at least one state variable which is a measure for at least one vehicle and/or air supply operation condition or environmental condition. It also includes an evaluation unit that is configured to combine the usage quantity and the state variable into a lifetime decrement value that is a measure for the degradation of the component caused by the usage according to the usage quantity, and update the value in the memory unit according to this lifetime decrement value.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: September 10, 2019
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Richard Bozsik, Csongor Doeme, Levente Balogh
  • Patent number: 10385844
    Abstract: A pump included in an oil supply unit includes a piezoelectric body that is repeatedly deformed when a pulsed drive voltage is applied from a drive unit. The pump discharges lubricant as the volume of a storage unit that stores fluid to be supplied decreases with deformation of the piezoelectric body. An abnormal discharge detection device that detects an abnormal fluid discharge operation of the pump includes: a measurement unit that measures a terminal voltage of the piezoelectric body; and a control unit functioning as a determination unit that determines if the discharge operation is being performed normally or not based on whether or not the measured terminal voltage has changed with time during application of a pulse of the drive voltage.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: August 20, 2019
    Inventors: Masami Naka, Yoshimichi Higashiyama, Tsukasa Sakazaki
  • Patent number: 10358148
    Abstract: A method of reducing vapor generation in an LNG fueled vehicle is provided. The LNG fueled vehicle includes an LNG fuel system including an external LNG pump. The method includes a step of predicting if the LNG fueled vehicle will be operated during a first forthcoming time period using a controller. If the LNG fueled vehicle will be operated during the first forthcoming time period, as determined by the first predicting step, the method includes cooling the external LNG pump.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 23, 2019
    Assignee: Progress Rail Locomotive Inc.
    Inventors: Aaron Gamache Foege, Walter Henry Klaric
  • Patent number: 10316836
    Abstract: The invention concerns a pumping device that includes a pump having a pumping chamber with a variable volume, an inlet that communicates with the pumping chamber and a valve, an outlet that communicates with the pumping chamber and a valve, and an actuator adapted to change the volume of the pumping chamber. A fluidic pathway in the pumping device includes the inlet, the pumping chamber, the outlet, and a downstream line situated downstream of the outlet valve. The pumping device also includes a pressure sensor for measuring the pressure between the valves of the pathway, and a processing means for processing the received pressure data from the pressure sensor. The invention also concerns a method for detecting a dysfunction in the pumping device.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: June 11, 2019
    Assignee: DEBIOTECH S.A.
    Inventors: Eric Chappel, Niklaus Schneeberger, Frédéric Neftel
  • Patent number: 10279109
    Abstract: A system for injecting and controlling a flow of liquid to be injected, including: a peristaltic pump; a catheter delivering the liquid to be injected; a pressure sensor measuring liquid pressure in the catheter; a controller receiving data from the pressure sensor and controlling the pump on the basis of the data measured at different times.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: May 7, 2019
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Raymond Campagnolo, Pierre Jallon
  • Patent number: 10227974
    Abstract: A pressure monitoring apparatus for a membrane compressor, with at least one pressure transducer for recording the pressure within a certain volume, with at least one nonreturn valve and with at least one shutoff valve, for blocking of the nonreturn valve, the shutoff valve and the nonreturn valve each being located in a flow path through which a medium can flow between the volume and the pressure transducer. A pressure monitoring unit delivers exact measured values and which can be economically implemented is achieved by there being at least two nonreturn valves which are located anti-parallel in respective flow paths, the first nonreturn valve blocking in the flow direction from the volume to the pressure transducer and the second nonreturn valve blocking in the flow direction from the pressure transducer to the volume, and by there being at least two shutoff valves for blocking a respective flow path.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: March 12, 2019
    Inventor: Manfred Dehnen
  • Patent number: 10190582
    Abstract: A system for monitoring a pump, while the pump operates at a worksite, is disclosed. The system includes one or more sensors, wherein each of the one or more sensors is associated with the pump and is configured to collect high frequency data associated with the pump. The system further includes a field-programmable gate array (FPGA) controller configured to receive the high frequency data from the one or more sensors and is also configured to generate low frequency data based on the high frequency data. The system further includes a low frequency controller configured to receive the low frequency data from the FPGA controller and configured to transmit the low frequency data to a monitor.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 29, 2019
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Vijay Janardhan, Maurice Dust
  • Patent number: 10099175
    Abstract: A control device for a scrubber includes a converter which calculates a minimum amount of seawater: a minimum amount of seawater necessary for an absorption reaction of the sulfur oxide by the seawater, from an engine output and a sulfur content of fuel oil; another converter which calculates a corrected amount of seawater: an amount of seawater at which the sulfur oxide in the exhaust gas discharged from the scrubber is equal to or less than a set value; a summing element which calculates a set amount of seawater by summing the minimum amount and corrected amount of seawater; a pump control device which implements control such that seawater corresponding to the set amount is supplied to the scrubber; and an alkalinity setting device which sets the alkalinity of the seawater in accordance with traveled waters. The amount of seawater supplied to the scrubber is adjusted based on the alkalinity.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 16, 2018
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Kuniyuki Takahashi, Takashi Inui
  • Patent number: 10061312
    Abstract: Sensor management systems for computer assisted or autonomous driving vehicles are disclosed herein. A computer assisted or autonomous driving vehicle may be provided with a plurality of sensors and a sensor management system configured to predictively maintain effectiveness of the plurality of sensors, based at least in part on predicted cleaning needs of the sensors, predicted obstruction or destruction events of the sensors, or predicted environmental or operating conditions. In embodiments, the sensor management system may be coupled to a navigation system of the vehicle, and may, in response to a predicted sensor obstruction or destruction event, change a navigation parameter of the vehicle to avoid the event. Alternatively, if the predicted event is determined to be within an acceptable risk tolerance threshold, the sensor management system may follow an original navigational route but implement event avoidance actions. Other embodiments may be disclosed or claimed.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: August 28, 2018
    Inventor: Glen J. Anderson
  • Patent number: 10047741
    Abstract: A monitoring system for a fluid pump having a fluid end and a power end is provided. The monitoring system includes an inlet pressure sensor attached to an inlet manifold of the fluid end. The inlet pressure sensor generates a signal indicative of an inlet pressure of a fluid being supplied to the fluid end. The monitoring system includes a discharge pressure sensor attached to the fluid end. The discharge pressure sensor generates a signal indicative of a discharge pressure of the fluid exiting the fluid end. The monitoring system includes at least one accelerometer attached to the fluid end. The accelerometer generates a signal indicative of vibrational data of the fluid pump. The monitoring system includes a controller which receives signals from the inlet pressure sensor, the discharge pressure sensor and the accelerometer and determines a possible failure mode of the fluid pump.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: August 14, 2018
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Daryl Belshan, Vijay Janardhan, Zhaoxu Dong
  • Patent number: 10040002
    Abstract: This invention relates to a multiphase pumping device comprising a pump suitable for pumping a pumping fluid, a recycle circuit and at splitter tank. The splitter tank is connected to an area downstream of the pump and is suitable for separating a liquid phase and a gaseous phase using pumping fluid. In addition, the recycle circuit is connected to the splitter tank and is suitable for enabling the flow of the liquid phase from the splitter tank to an area upstream of the pump.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 7, 2018
    Assignee: TOTAL SA
    Inventors: Pierre-Jean Bibet, Jean-Luc Le Rodallec, Olivier Saincry
  • Patent number: 9951768
    Abstract: A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: April 24, 2018
    Assignee: DEKA Products Limited Partnership
    Inventors: Kevin L. Grant, James D. Dale, Jason A. Demers, Michael J. Wilt
  • Patent number: 9923220
    Abstract: An electricity generation apparatus is disclosed. An exemplary apparatus includes a plasma container for containing a plasma sustained by radioactive decay. The plasma container has an inlet through which, in use of the apparatus, water can be introduced to the plasma container, and an outlet through which, in use of the apparatus, material can be expelled from the container. The exhausted material can include hydrogen and oxygen resulting from the dissociation of water molecules caused by interactions within the plasma. A separator can separate hydrogen from the material exhausted from the plasma container, which separator is coupled to the outlet, and a generator can generate electricity using the hydrogen as a fuel.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: March 20, 2018
    Assignee: BAE SYSTEMS plc
    Inventor: Russell Alan Morgan
  • Patent number: 9909477
    Abstract: A method for operating a device for providing a liquid additive having at least one suction point for removing liquid additive from a tank, a valve-free conveying line extending from the suction point to a supply unit, and a valve-free displacement pump, the displacement pump being configured to convey the liquid additive from the tank via the suction point along the conveying line to the supply unit, the displacement unit having at least one seal of the conveying line, displaceable along the conveying line for conveying the liquid additive, includes: a) detecting a stoppage of operation of the device; b) establishing a position of the seal within the positive-displacement pump; and c) changing the position of the seal if the position of the seal does not correspond to a provided park position of the seal.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: March 6, 2018
    Assignee: Continental Automotive GmbH
    Inventors: Rolf Brück, Jan Hodgson
  • Patent number: 9904061
    Abstract: The present invention relates to the field of display technologies, and discloses a raster, a display apparatus and a method of manufacturing the raster. The raster comprises a first substrate and a second substrate arranged to be opposed to each other, a surface of the first substrate facing the second substrate is provided with a plate electrode thereon, a surface of the second substrate facing the first substrate is provided thereon with a plurality strip electrodes arranged to space apart from each other. A spacer wall is arranged to correspond to each strip electrode and located between the first substrate and the second substrate, the spacer wall comprises a conductive protrusion electrically connected with the strip electrode, and a hydrophilic-hydrophobic conversion material layer covering the conductive protrusion. Filled between every two adjacent spacer walls are liquid layers including a polar liquid layer and a non-polar liquid layer.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: February 27, 2018
    Inventor: Junwei Wang
  • Patent number: 9903534
    Abstract: A cryogenic fluid delivery system includes a tank adapted to contain a supply of cryogenic liquid, with the tank including a head space adapted to contain a vapor above the cryogenic liquid stored in the tank. A liquid withdrawal line is adapted to communicate with cryogenic liquid stored in the tank. A vaporizer has an inlet that is in communication with the liquid withdrawal line and an outlet that is in communication with a vapor delivery line. A pressure building circuit is in communication with the vapor delivery line and the head space of the tank. The pressure building circuit includes a flow inducing device and a control system for activating the flow inducing device when a pressure within the head space of the tank drops below a predetermined minimum pressure and/or when other conditions exist.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: February 27, 2018
    Assignee: Chart Inc.
    Inventors: Keith Gustafson, Erik Gustafson
  • Patent number: 9758433
    Abstract: A grout used in horizontal directional drilling including a silica material present in an amount of from about 50% to about 70%, bentonite present in an amount of from about 20% to about 30%, a carbon source present in an amount of from about 5% to about 15%, an inorganic alkaline material present in an amount of from about 0% to about 3%, a fluid loss additive present in an amount of from about 0% to about 1%, a polymeric dispersant present in an amount of from about 0% to about 1%, and a polymeric flow enhancer present in an amount of from about 0% to about 0.5%, all by weight of the grout composition. Methods utilizing the grout include placing conduit in a hole, forming the grout slurry, and placing the grout slurry adjacent to the conduct.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: September 12, 2017
    Inventors: Joshuah S. Hathcox, Ryan P. Collins
  • Patent number: 9752430
    Abstract: An apparatus for measuring phase behavior of a reservoir fluid comprises a first sample container and a second sample container in fluid communication with a microfluidic device defining a microchannel. A first pump and a second pump are operably associated with the sample containers and the microfluidic device to fill the microchannel with a reservoir fluid and to maintain a predetermined pressure of reservoir fluid within the microchannel.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 5, 2017
    Inventors: Farshid Mostowfi, Shahnawaz Hossain Molla
  • Patent number: 9702335
    Abstract: A hydraulic wave energy converter, for converting wave energy into high-pressure water energy, includes a rectangular upper floating body (1) floating on water surface, a cylindrical housing-shaped lower floating body (2) under water, a first cable (3), a second cable (4), a hanging rod (5), a ball hinged hook (6), a sea floor anchor pile (7), and other mooring facilities. A plurality of water hydraulic cylinders (8) are vertically fixed at two wider sides of the upper floating body (1) and are reliably connected with the lower floating body (2) through piston heads (27), piston rods (28) and piston rod seats (29). The hydraulic wave energy converter can convert the vertical component and the horizontal component of the wave motion into high-pressure water energy for impacting a hydraulic generator set to generate power, and is lower in cost, simple in maintenance and high in wave energy conversion efficiency.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: July 11, 2017
    Inventor: Jiashan Chen
  • Patent number: 9688262
    Abstract: A controller for monitoring an air system in a vehicle comprises an input for receiving at least one pressure signal indicative of air pressure in an air system; and a processor having control logic. The control logic is capable of determining a volume of the air system at a first time based on the at least one air pressure signal and a vehicle factor; determining the volume of the air system at a second time based on the at least one air pressure signal and the vehicle factor; determining the difference between the volume at the first time and the volume at the second time; and transmitting an alert in response to a difference between the volume at the first time and volume at the second time. The control logic is also capable of changing the compressor operation in response to the alert.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 27, 2017
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: David J Pfefferl
  • Patent number: 9659508
    Abstract: The present invention provides a microfluidic device which includes at least 3 chambers, a chamber inlet, at least 2 dichotomously branching generations of channels, a channel inlet, and a channel outlet, wherein the channels and the chambers are separated by deformable walls, wherein each wall is lined with at least one cavity, and wherein the cavity is fluidly connected to the channel.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: May 23, 2017
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Rami Fishler, Josue Sznitman
  • Patent number: 9650882
    Abstract: A system for detecting leakage in a pump includes a first pressure sensor, a second pressure sensor, multiple third pressure sensors, and a controller. The first pressure sensor is configured to output a pressure value associated with a suction manifold of the pump. The second pressure sensor is configured to output a pressure value associated with a discharge manifold of the pump. The third pressure sensors are configured to output a pressure value associated with the cylinders of the pump. The controller is disposed in communication with the first pressure sensor, the second pressure sensor, and the third pressure sensors. The controller is configured to determine amplitude of a leak, and a location of the leak in the pump on the basis of pressure values received from the first pressure sensor, the second pressure sensor, and the third pressure sensors.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 16, 2017
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Evan Earl Jacobson, Koti Ratnam Padarthy, Venkata Bhagavathi Dandibhotla
  • Patent number: 9604889
    Abstract: A system includes an amine gas processing system that includes a contactor configured to remove an acid gas from an untreated natural gas using an amine in a lean amine stream, output a treated natural gas, and output a rich amine stream. The system also includes a regenerator configured to regenerate the amine in the rich amine stream, output the lean amine stream, and output the acid gas. The system also includes an isobaric pressure exchanger (IPX) configured to transfer the rich amine stream from the contactor to the regenerator and to transfer the lean amine stream from the regenerator to the contactor.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: March 28, 2017
    Inventors: James Lee Arluck, Jeremy Grant Martin, Prem Krish
  • Patent number: 9587470
    Abstract: An acoustic artificial lift system and method for deliquification of gas production wells is provided. The artificial lift system comprises a down-hole acoustic tool suspended by a power conductive cable that converts electrical power to acoustic energy, thereby generating an acoustic wave. The acoustic tool is moved within the wellbore such that liquid molecules within the wellbore are vaporized by the acoustic wave. Natural gas produced by a producing zone of the subterranean reservoir transports the vaporized liquid molecules to the well surface.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 7, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Dennis John Harris
  • Patent number: 9574442
    Abstract: A method for real-time data acquisition and presentation of force, position, load, pressures, and movement within a subterranean well pumping system, such as an oil well. Data is gathered using sensors attached to a surface level pump drive and wellhead system. Well structural data and well production data are combined therewith to generate a real-time display of down-hole well operation, including animated graphics of the pump operation, including pump movement, rod and tubing stretch, fluid movement, gas compression, system forces, and fluid pressures. Liquid levels are tested using an acoustic liquid level instrument, and incorporated to improve well performance analysis.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 21, 2017
    Inventor: James N. McCoy
  • Patent number: 9566796
    Abstract: A liquid supply device includes a pump tube that supplies a liquid to a handpiece intermittently ejecting the liquid and a tube pump that passes the pump tube to supply the liquid. An internal diameter of the pump tube is equal to or less than ? 1.0 mm.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: February 14, 2017
    Inventors: Satoru Miyamoto, Sosuke Yamasaki
  • Patent number: 9546645
    Abstract: The invention relates to a device for pumping a cryogenic fluid, consisting of a tank for storing a cryogenic fluid containing cryogenic liquid, a cryogenic pump having an inlet pressure loss, and a suction line connecting the tank to the pump, said pumping device including a system for controlling the pressure in the tank for selectively maintaining said pressure at least equal to the saturation pressure of the stored cryogenic fluid plus the inlet pressure loss of the cryogenic pump and optionally plus the value of the pressure losses owing to the pipes forming the suction line connecting the tank to the pump. The invention is characterized in that the pressure-control system includes a duct connecting a high-pressure outlet of the pump to the tank for selectively returning the pumped cold fluid to the tank, said duct including an expansion valve for returning cold gas to the tank.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: January 17, 2017
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Laurent Allidieres
  • Patent number: 9546426
    Abstract: According to aspects described herein, methods and systems provided by the present invention for hydrogen gas production include a RED stack including one or more RED subunits, and use of a saline material including a heat regenerable salt. The salinity driven energy, provided by the one or more RED subunits, completely eliminates the need for an external power source to produce hydrogen gas.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: January 17, 2017
    Assignee: The Penn State Research Foundation
    Inventors: Bruce E. Logan, Younggy Kim, Roland D. Cusick
  • Patent number: 9528524
    Abstract: Systems and methods for preventing water from freezing within a pump system. A pump motor is positioned inside a pump housing. A temperature sensor and a motor controller are positioned inside a motor controller housing. A user interface (UI) controller is positioned in a UI housing. A UI is integrated into the UI housing. The UI controller receives a freeze protection temperature setting through the UI reflecting a difference between an ambient temperature at the location of the motor controller housing and an outdoor temperature and determines a freeze protection temperature threshold based on the setting. The UI controller also receives an adjusted temperature value from the motor controller based on the temperature sensed by the temperature sensor. The UI controller activates the pump motor when the adjusted temperature is below the freeze protection temperature threshold.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: December 27, 2016
    Assignee: Regal Beloit America, Inc.
    Inventor: Yilcan Guzelgunler
  • Patent number: 9444260
    Abstract: An energy management controller for controlling and limiting the time during which high current draws may be made by one or more of a plurality of single serve coffee brewers that are commonly connected to the same circuit and which include heater constructions that require and draw high power at certain times during operation, and require and draw lower power at other times. It includes one controller board, connected to the primary brewer to complete a circuit, and which board includes heat and wait timer functions to monitor the power status usage with respect to all of the brewers.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: September 13, 2016
    Assignee: Newco Enterprises, Inc.
    Inventors: Robert Cobb, Joseph Webster
  • Patent number: 9404516
    Abstract: A system for determining an estimated output from a variable displacement hydraulic pump includes a prime mover, and torque, pressure, and displacement sensors. A controller determines the output torque from the prime mover, determines an input torque to the variable displacement hydraulic pump based upon the output torque, determines an output from one of the pressure sensor and the displacement sensor, and determines an inertia torque loss based upon the angular acceleration of the prime mover. The controller further determines a failure of another of the pressure sensor and the displacement sensor and determines an estimated output from the another of the pressure sensor and the displacement sensor based upon the input torque to the variable displacement hydraulic pump, the output from the one of the pressure sensor and the displacement sensor, and the inertia torque loss.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: August 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: Hongliu Du, Aleksandar Egelja, Santosh Ancha
  • Patent number: 9383004
    Abstract: The present disclosure provides a hydraulic system of a transmission having a controller and a variable displacement pump. The pump includes an inlet and outlet and is adapted to be driven by a torque-generating mechanism. The system also includes a lube circuit fluidly coupled to the pump. A lube regulator valve is disposed in the lube circuit, such that the lube regulator valve is configured to move between at least a regulated position and an unregulated position. The regulated position corresponds to a regulated pressure in the lube circuit. A pressure switch is fluidly coupled to the lube regulator valve and configured to move between a first position and a second position, where the switch is disposed in electrical communication with the controller. A solenoid is disposed in electrical communication with the controller and is controllably coupled to the pump to alter the displacement of the pump.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: July 5, 2016
    Assignee: Allison Transmission, Inc.
    Inventors: Charles F. Long, Charles T. Taylor
  • Patent number: 9372021
    Abstract: While a compressor is stopped, a change rate of a refrigerant temperature per predetermined time is calculated on the basis of a value detected by a refrigerant temperature sensor, and a heating amount from a compressor heating unit to the compressor is made proportional to the change rate of the refrigerant temperature.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: June 21, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Kato, Naoki Wakuta
  • Patent number: 9339602
    Abstract: A fluid control system for delivery of a liquid includes a pneumatic drive that incorporates a linear actuator to effect known volume changes in a gas reservoir. The gas reservoir is in fluid communication with a gas-side reservoir that is separated from a fluid-side reservoir by a flexible membrane. Movement of the linear actuator effects positive or negative volume differences on the gas in the gas-side reservoir, resulting in a decrease or increase in pressure of the gas that is transmitted to the fluid-side reservoir to draw fluid, primarily liquid, in from a source or deliver liquid out to a sink. In another aspect, a mechanism is provided for the detection and elimination of air bubbles in the fluid path.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: May 17, 2016
    Inventors: Jeffrey A. Carlisle, Lawrence M. Kuba
  • Patent number: 9322511
    Abstract: A bridge comprises a first inlet port, a second inlet port, an outlet port, and a chamber for silicone oil. The oil is density-matched with the reactor droplets such that a neutrally buoyant environment is created within the chamber. The oil within the chamber is continuously replenished by the oil separating the reactor droplets. This causes the droplets to assume a stable capillary-suspended spherical form upon entering the chamber. The spherical shape grows until large enough to span the gap between the ports, forming an axisymmetric liquid bridge. The introduction of a second droplet from the second inlet port causes the formation of an unstable funicular bridge that quickly ruptures from the, finer, second inlet port, and the droplets combine at the liquid bridge. In another embodiment, a droplet segments into smaller droplets which bridge the gap between the inlet and outlet ports.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: April 26, 2016
    Assignee: Stokes Bio Limited
    Inventors: Mark Davies, Tara Dalton, Kieran Curran
  • Patent number: 9316161
    Abstract: Methods are provided for operating a high pressure fuel pump to maintain one or more selectable, mechanically-regulated pressures. To reduce the cost and complexity associated with a fuel system that involves both port and direct fuel injection, a fuel and pump system is needed that removes complicated electronic control without degrading pump and engine performance. High pressure fuel pumps, associated systems, and methods are provided that involve adding one or more pressure relief valves and solenoid valves in order to maintain one or more discrete, substantially constant pressures of the high pressure fuel pumps and attached direct injection fuel rails.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: April 19, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Ross Dykstra Pursifull
  • Patent number: 9273675
    Abstract: A method for creating a supply of natural gas fuel for a combustion engine, comprising: obtaining boil-off gas from an LNG storage tank containing liquified natural gas, compressing the boil-off gas in a compression stage consisting of a labyrinth-sealed piston-compressor or a piston-compressor sealed by piston rings, and compressing the natural gas in a compression stage consisting of a piston-compressor sealed by piston rings or a labyrinth-sealed piston-compressor, compressing the natural gas to a pressure of between 100 Bar and 500 Bar, and making the natural gas available at an outlet, wherein at least one of the piston-compressors has a bypass, and that natural gas is returned via the at least one bypass such that the natural gas at the outlet is at a required target pressure (Psoll).
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: March 1, 2016
    Inventor: Besim Fejzuli
  • Patent number: 9261091
    Abstract: A pump having an increased energy efficiency is provided. The pump has an internal power fluid column and a transfer piston which is reciprocatingly mounted about the power fluid column. The transfer piston defines a product fluid chamber, located above the transfer piston valve, and a transfer chamber, located below the transfer piston valve. The power fluid column has at least one passageway, which allows the fluid inside the power fluid column to be in communication with a power fluid chamber. The power fluid chamber, the transfer chamber, and the product chamber are situated coaxially about the power fluid column.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: February 16, 2016
    Inventor: Richard F. McNichol
  • Patent number: 9222575
    Abstract: A system for lubricating transmission components with hydraulic fluid includes a pump and a motor coupled to the pump. The pump has an inlet port that receives hydraulic fluid and an outlet port from which hydraulic fluid is pumped to the transmission components. A pump pressure is regulated by adjusting a motor torque of the motor, and the motor torque is set by commands based on a look-up table or a formula.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: December 29, 2015
    Assignee: GM Global Technology Operations, LLC
    Inventor: Zhe Xie