Patents Examined by Philip E Stimpert
  • Patent number: 10724508
    Abstract: A linear compressor is provided. The linear compressor may include a shell having a cylindrical shape, a shell cover that covers both open ends of the shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a piston that reciprocates within the cylinder in an axial direction to compress the refrigerant within the compression space, a motor assembly including a motor that provides power to the piston and a stator cover that supports the motor, and resonant springs seated on the stator cover that support the piston to allow the piston to perform a resonant motion. The resonant springs may be circularly arranged at three points having a same interval around a center in an axial direction.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: July 28, 2020
    Inventors: Junghae Kim, Hyunsoo Kim, Jeonguk Byun, Jongwoo Lee, Eonpyo Hong
  • Patent number: 10718320
    Abstract: A high pressure axial piston pump displaces high pressure, high volume fluid into a 1994-2003 7.3 liter power stroke or T444E International engine. A pump housing forms a central borehole, an intake port, and two discharge ports angled about 122 degrees from each other and in fluid communication with engine. A drive shaft rotates a cylinder block about an axis of rotation. A cam is tilted at an angle relative to axis of rotation. Multiple pistons, having a cam end and a block end, reciprocate through cylinder block. The cam end is constrained to follow surface of cam. When pistons move proximally to tilted cam, the block end restricts intake of fluid, and cam end enables discharge of fluid. When pistons move distally from tilted cam, the block end enables intake of fluid, and cam end restricts passage through discharge ports. The pump is fabricated from billet aluminum material.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: July 21, 2020
    Inventor: Clayton Note
  • Patent number: 10718296
    Abstract: A high-pressure fuel supply pump including an electromagnetically driven intake valve is configured such that a pressure equalizing hole is provided in the valve stopper positioned between the valve and a pressurizing chamber. The pressure equalization hole connects a spring storage space, provided between a valve and a valve stopper, with a surrounding fluid passage. The high-pressure fuel supply pump is further configured such that an opening of the pressure equalizing hole at the spring storage chamber side is open at a position at the inner side of a diameter of the spring. Since the pressure in the pressurizing chamber can be introduced into the inner side of the spring without traversing the spring, the unstable behavior of the spring or the valve due to the introduced pressure eliminated. Since the force applied to the valve when the valve closes is stabilized, the closing timing of the valve is stable.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 21, 2020
    Inventors: Masahiko Hayatani, Satoshi Usui, Hideki Machimura, Tatsuo Kawano, Syunsuke Aritomi, Shingo Tamura
  • Patent number: 10711805
    Abstract: Variable flow rate fuel ejectors, and methods of use therefore, are disclosed. One variable flow rate ejector includes a primary nozzle, a needle, a motor, a first stop portion, and a first impact-absorbing portion. The primary nozzle is connected to a first inlet chamber to receive a first fluid and transmit a flow of the first fluid through the primary nozzle opening. The needle is disposed to create a gap between the tapered portion of the needle and the primary nozzle opening. The motor is coupled to axially move the needle to vary a size of the gap. The first stop portion delimits the axial movement of the needle in a direction of retraction of the needle from the primary nozzle opening. The first impact-absorbing element is positioned to contact the first stop portion or the needle, respectively, when the needle is fully retracted from the primary nozzle opening.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 14, 2020
    Assignee: University Of Delaware
    Inventors: Douglas A. Brunner, Manish Bajpai, John Adam C. Kinzey, Shane Marcks, Ajay Prasad, Suresh Advani
  • Patent number: 10711786
    Abstract: A micro pumping mechanism is proposed to generate flow in micro channels of micro fluidic devices and three dimensional microprocessors cooled by the flow of coolant fluids. The proposed micro pump comprises a rotating disk inside a chamber, which overlaps with the fluidic micro channel. The rotating disk induces a shear flow across the micro channel, transporting fluid elements in the direction of the rotation of the disk. The disk can be rotated by external magnetic or electric fields as in direct drive, induction, or electrostatic motors.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 14, 2020
    Assignee: Citroqene, Inc
    Inventors: Mir Abbas Jalali, S Abbas Hosseini, Amir Tork
  • Patent number: 10709838
    Abstract: A method of dispensing a therapeutic fluid from a line includes providing an inlet line connectable to an upstream fluid source. The inlet line is in downstream fluid communication with a pumping chamber. The pumping chamber has a pump outlet. The method also includes actuating a force application assembly so as to restrict retrograde flow of fluid through the inlet while pressurizing the pumping chamber to urge flow through the pump outlet. A corresponding system employs the method.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: July 14, 2020
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Larry B. Gray, Eric Yeaton
  • Patent number: 10704565
    Abstract: A side-channel pump having a pump housing in which an operating chamber which is provided with a side channel and a motor are arranged, and having an impeller in the operating chamber which rotates with a shaft which is driven by the motor. A cooling circuit extends from the operating chamber to the motor and from the motor to a suction portion of the pump, wherein the cooling circuit is supplied from an operating chamber whose outlet side is connected to an outlet opening of the side-channel pump. Using the pump, gas can be drawn in without the pump becoming overheated.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: July 7, 2020
    Inventor: Heiner Kösters
  • Patent number: 10697663
    Abstract: A motor controller for an electric motor for driving a blower to generate an airflow. The motor controller includes a processor and a drive circuit configured to regulate power supplied to the motor to turn the blower. The processor computes a system resistance for the blower based on a fixed set point for a first control parameter and a feedback parameter. The processor receives an airflow rate demand value and computes an operating set point for a second control parameter based on the system resistance and the airflow rate demand value. The processor controls the drive circuit based on the operating set point to supply electrical power to the electric motor and to operate the blower to generate the airflow.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: June 30, 2020
    Inventors: Bin Yang, Brian Lee Beifus, Roger Carlos Becerra
  • Patent number: 10697429
    Abstract: A controller of a wind turbine for causing the wind turbine to perform rotor turning includes: an input part for receiving a target azimuth angle at which a rotor of the wind turbine is to be stopped; and a pitch control part configured to cause the wind turbine to perform a pitch control to stop the rotor at the target azimuth angle. The pitch control part is configured to: control a pitch angle of a wind turbine blade of the wind turbine so that the rotor rotates at a predetermined rotation speed which is constant, in a first period until the rotor reaches a control-switch azimuth angle immediately before the target azimuth angle; and control the pitch angle so that a rotation speed of the rotor decreases from the predetermined rotation speed in a second period after the rotor reaches the control-switch azimuth angle and before the rotor reaches the target azimuth angle.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: June 30, 2020
    Inventor: Mitsuya Baba
  • Patent number: 10686346
    Abstract: A pump assembly has at least one electronics receiving space (54; 54; 54?). The electronics receiving space (54; 54; 54?) includes at least one defined ventilation opening (40; 40; 40?). The ventilation opening (40; 40; 40?), at an outer side of the electronics receiving space (54; 54; 54?), runs out into an air duct (41; 41; 46; 46; 48, 48?) which is led along at least one condensation surface (60; 60; 60?).
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: June 16, 2020
    Inventors: John B. Jacobsen, Jens Peter Krog
  • Patent number: 10677232
    Abstract: An apparatus can include a housing defining a housing interior, an air pump positioned in the housing interior, and a plurality of resilient connectors connecting the air pump to the housing with the resilient connectors in tension so as to reduce transmission of vibration from the air pump to the housing during operation of the air pump.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 9, 2020
    Assignee: Sleep Number Corporation
    Inventors: Anthony John Shakal, Casey Carlson, Ryan Douglas
  • Patent number: 10670040
    Abstract: Embodiments of a core-protecting fan module are provided, as are embodiments of a turbofan engine containing such a fan module. In an embodiment, the core-protecting fan module contains a nose member, a fan rotor downstream of the nose member, a full span stator downstream of the fan rotor, and a splitter structure downstream of the fan rotor. The fan rotor includes a plurality of fan blades, which extends from a rotor hub and which is angularly spaced about a rotational axis. Certain fundamental angular relationships are observed between the angles formed by rotational axis, the nose member, the fan rotor, and a leading edge of the splitter structure to reduce contaminant ingestion by the core flow path and to promote moisture shedding to reduce susceptibility to icing within the fan module, while further avoiding or minimizing negative impacts to other structural and functional aspects of the turbofan engine.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: June 2, 2020
    Inventors: Nick Nolcheff, John Repp, Jeffrey Hayes, John A Gunaraj, Yoseph Gebre-Giorgis
  • Patent number: 10670008
    Abstract: A method for detecting head crashing in a linear compressor includes sampling a rolling average of a peak applied voltage and a desired peak current each time that a current controller adjusts the desired peak current. The method also includes calculating a linear regression for a predicted peak applied voltage as a function of the desired peak current, calculating the predicted peak voltage for the motor of the linear compressor with the linear regression and a current value for the desired peak current from the current controller, and establishing that a piston of the linear compressor is soft crashing when the predicted peak voltage is different than the current value for the rolling average of the peak applied voltage by more than a threshold value.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: June 2, 2020
    Assignees: Haier US Appliance Solutions, Inc., University of Louisville Research Foundation, Inc.
    Inventors: Srujan Kusumba, Gregory William Hahn, Michael Lee McIntyre, Joseph W. Latham
  • Patent number: 10648465
    Abstract: Methods and systems for pumping fluid through tubing are provided. Methods include orbiting one or more first rollers at multiple angular speeds around the periphery of a substantially circular first disk having a first radius with each first roller travelling at the same angular speed as the other first rollers, orbiting second rollers at a second angular speed around a substantially circular second disk having substantially the first radius, and increasing the pressure of fluid in tubing between one first roller and one second roller by causing the one or more first rollers to orbit at a first angular speed greater than the second angular speed so the one first roller moves along and fully compresses the tubing in a first section of the first disk, and simultaneously causing the one second roller to move along and fully compress the tubing in a first section of the second disk.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: May 12, 2020
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Nathan Michael Gaskill-Fox, Daniel Nelson Fox
  • Patent number: 10641263
    Abstract: A method for operating a linear compressor includes substituting a first observed velocity, a bounded integral of the first observed velocity, an estimated clearance, an estimated discharge pressure, and an estimated suction pressure into the mechanical dynamic model for the motor, calculating an observed acceleration for the piston with the mechanical dynamic model for the motor, calculating a second observed velocity for the piston by integrating the observed acceleration for the piston, calculating an observed position of the piston by integrating the second observed velocity for the piston, and updating an estimated clearance, an estimated discharge pressure, and an estimated suction pressure based upon an error between the first and second observed velocities and an error between the bounded integral of the first observed velocity and the observed position.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 5, 2020
    Assignees: Haier US Appliance Solutions, Inc., University of Louisville Research Foundation, Inc.
    Inventors: Srujan Kusumba, Gregory William Hahn, Michael Lee McIntyre, Joseph W. Latham
  • Patent number: 10641273
    Abstract: A charging apparatus (20) for a combustion engine, having a compressor (1) which has a compressor housing (2) in which a compressor wheel (3) is arranged, the compressor wheel being mounted on one end (4) of a rotor shaft (5), and which has a compressor housing rear wall (6); and having an electric motor (7) which has a stator winding (12) which surrounds a magnet (11), which is arranged on the rotor shaft (5), on the outside. The stator winding (12) is an iron-free stator winding, and the electric motor (7) is a brushless DC motor.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: May 5, 2020
    Assignee: BorgWarner Inc.
    Inventors: Gerd Spinner, Dietmar Metz, Andreas Bleil, Victor Ritzhaupt
  • Patent number: 10642287
    Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: May 5, 2020
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventor: Robert M. Koehl
  • Patent number: 10626785
    Abstract: A two-stage oil-injected screw air compressor includes an integrated compression casing, and the integrated compression casing further includes a first stage compression chamber, an intermediate cooling channel, and a second stage compression chamber parallel stacked in the integrated compression casing. A straightforward oil injector aims at the intermediate cooling channel to spray lubricating oil into the intermediate cooling channel.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: April 21, 2020
    Inventors: Yin-Ching Lin, Viktor Weber, Sheng-Kun Chen, Yu-Feng Wu
  • Patent number: 10608484
    Abstract: An electric motor may include: a stator; a rotor; and a tubular sleeve. The stator may have a stator cavity with an axis extending in a longitudinal direction. The stator cavity may have a stator inlet for receiving a fluid and a stator outlet for discharging the fluid. The rotor may be arranged inside the stator cavity and be rotatable around the axis. The tubular sleeve may be arranged between the stator and the rotor, coaxial with the axis, and attached to the stator through attachment members. The tubular sleeve may be spaced from the stator by a first tubular gap, and from the rotor by a second tubular gap. The first tubular gap may extend along the longitudinal direction between a first gap inlet and a first gap outlet. The second tubular gap may extend along the longitudinal direction between a second gap inlet and a second gap outlet.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: March 31, 2020
    Assignee: NIDEC ASI S.p.A.
    Inventors: Fabio Luise, Stefano Pieri
  • Patent number: 10590921
    Abstract: Disclosed is a lubricant supply device, including at least a first housing section forming a reservoir for a lubricant, a second housing section including a feed pump for feeding the lubricant from the reservoir to a lubricant outlet and a motor driving at least the feed pump, the motor being arranged in the first housing section forming the reservoir.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: March 17, 2020
    Assignee: SKF Lubrication Systems Germany GmbH
    Inventors: Juergen Kreutzkaemper, Jan Ruiter, Andreas Schoenfeld