Patents Examined by Patrick Hamo
  • Patent number: 10451048
    Abstract: A control valve for an air conditioning compressor is disclosed. The control valve comprises a control piston, an electric motor, a sensor, and a control unit. The control piston connects a refrigerant flow between a high-pressure area and a crankcase pressure area of the air conditioning compressor in a first position. The control piston further connects the refrigerant flow between the crankcase pressure area and a low-pressure area of the air conditioning compressor in a second position. The electric motor moves the control piston between the first position and the second position. The sensor determines the position of the control piston. The control unit is connected to the sensor and the electric motor. The control unit controls the electric motor to move the control piston and control the refrigerant flow based on the position of the control piston determined by the sensor.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 22, 2019
    Assignee: TE Connectivity Germany GmbH
    Inventor: Daniel Domke
  • Patent number: 10451057
    Abstract: A liquid pump/motor combination powered by an electric motor, preferably, an oil pump or reducing-agent pump with an electric motor, a positive displacement pump and a bearing shield arranged between the electric motor and the positive displacement pump. The liquid pump/motor combination comprises a positive displacement pump; an electric motor; and a bearing shield having a contact face, the bearing shield arranged between the electric motor and the positive displacement pump. A spherical bearing is accommodated in the bearing shield, the spherical bearing, under application of a force, being able to swivel to a limited extent. A connecting shaft is accommodated in the spherical bearing. The connecting shaft is positioned between the electric motor and the pump. An annular bearing gap, filled with liquid, is between the inside diameter of the spherical bearing and the connecting shaft. The arrangement functions as a hydrodynamic sliding bearing.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 22, 2019
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Thomas Peterreins
  • Patent number: 10443613
    Abstract: Disclosed is a fan blade for a gas turbine engine, including: a first member and a second member; the first member having a first surface and the second member having a second surface, each of the first surface and the second surface extending from a leading edge to a trailing edge of the fan blade and from a tip edge to or proximate to a root of the fan blade; the first surface being externally facing and being one of concave or convex between the leading edge and the trailing edge and the second surface being externally facing and being another of convex or concave between the leading edge and the trailing edge; the second member including structural ribs extending to the first member, and the first member being bonded to the second member at free edges of the structural ribs and about a perimeter of the fan blade.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: October 15, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Eric W. Malmborg
  • Patent number: 10436060
    Abstract: There is described herein methods and systems for detecting a shaft event in a gas turbine engine comprising a power turbine having a first shaft extending in a first direction and a second shaft extending in a second direction opposite from the first direction. A first speed measurement is obtained at a first location along the first shaft and a second speed measurement is obtained at a second location along the second shaft. A speed ratio is determined between the first speed measurement and the second speed measurement, and is compared to a detection threshold. The shaft event is detected when the speed ratio is beyond the detection threshold.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: October 8, 2019
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Jean Dubreuil, Johnny Vinski, Michel Desjardins
  • Patent number: 10436205
    Abstract: This fan motor includes a motor, an impeller arranged to rotate together with a rotating portion of the motor, a housing arranged to house the motor and the impeller therein, and a lead wire connected to the motor and arranged to extend outwardly of the housing. The housing includes a tubular portion, a bottom plate portion fixed below the motor, and a support portion arranged to extend from at least a portion of the tubular portion toward the bottom plate portion, and joined to at least a portion of the bottom plate portion. The support portion includes a groove portion recessed upward. The tubular portion includes a cut portion defined at a portion thereof continuous with the groove portion. The lead wire is drawn out of the housing through the groove portion and the cut portion. At least one of the groove portion and the cut portion has a thermosetting resin arranged therein.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 8, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Shinsuke Hamano, Hiroshi Miyamoto, Jinsoo Cho
  • Patent number: 10436181
    Abstract: The present disclosure is directed to a method for determining an estimated rotor shaft position of a rotor shaft of a wind turbine. The method includes generating, with a rotor shaft position sensor, a measured rotor shaft position signal associated with a measured rotor shaft position of the rotor shaft. The method also includes generating, with a plurality of accelerometers positioned in an axisymmetric arrangement, a plurality of rotor hub acceleration signals associated with a plurality of rotor hub accelerations of a rotor hub coupled to the rotor shaft. The method further includes determining, with a controller, a phase adjustment based on one of the plurality of rotor hub acceleration signals or a predetermined correction value. Furthermore, the method includes adjusting, with the controller, the measured rotor shaft position by the phase adjustment to determine the estimated rotor shaft position of the rotor.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: October 8, 2019
    Assignee: General Electric Company
    Inventors: Robert Peter Slack, Mark Edward Cardinal
  • Patent number: 10436191
    Abstract: Disclosed is a compressor for use with an apparatus having a refrigeration cycle where the compressor includes a piston which reciprocates in a cylinder; a linear motor configured to provide a driving force to move the piston; a sensor configured to sense a motor current of the linear motor; and a compressor controller configured to detect information related to a load of the apparatus, in a separated manner from a controller which controls a body of the apparatus, wherein the compressor controller calculates a phase difference between a stroke of the piston and the sensed motor current, and wherein the compressor controller compares the calculated phase difference with a reference phase difference, and controls a driving of the linear motor in correspondence to the detected load, according to a result of the comparison.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 8, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Nayi Ryu, Sungjin Lim, Kyoungseok Kang
  • Patent number: 10422351
    Abstract: Devices for producing vacuum using the Venturi effect are disclosed that have a motive passageway converging toward a suction chamber, a discharge passageway diverging away from the suction chamber, and a suction passageway, all of which are in fluid communication with the suction chamber. The motive passageway has a single entrance, and subdivides downstream thereof into a plurality of subpassageways, one each leading to one of the plurality of motive exits, which are spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap. The fletch having a plurality of ribs extending between an exterior surface of the generally conically-shaped main body thereof and an interior surface of the motive passageway is disposed in the motive passageway. The ribs divide the motive passageway into the plurality of sub-passageways, each converging fluid flow over the exterior surface thereof toward one of the plurality of motive exits.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: September 24, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton
  • Patent number: 10415462
    Abstract: A turbocharger having a variable-nozzle turbine formed by pivotable vanes supported by a nozzle ring includes a locator that is radially elastically deformable and is disposed between a radially outwardly facing surface of the center housing and an opposing surface of the nozzle ring for radially locating the nozzle ring relative to the center housing. At least one vent is defined in either a radially outermost surface of the locator or the surface of the nozzle ring to allow pressure communication between spaces on axially opposite sides of the locator.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 17, 2019
    Assignee: Garrett Transportation I Inc.
    Inventors: Arnaud Gerard, Romain Chicot, Mohamed Tahyry, Vincent Eumont, Nicolas Gaineton, Jean-Michel Geoffroy, Francis Abel, Bassam Chammas, Giorgio Figura
  • Patent number: 10408196
    Abstract: A piston shifting control system is provided to control a displacement pump to maximize a stroke length of a piston and prevent damages to the entire pump system. The displacement pump may include a linear variable displacement transducer (LVDT) inserted through one end of a cylinder body and used to detect a position of the piston within the cylinder. The shifting control system is configured to monitor a position of the piston assembly in the displacement pump and adjust a shifting trigger point of the piston assembly in each stroke to maximize the stroke length.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: September 10, 2019
    Assignee: Federal Signal Corporation
    Inventor: Xiaolun Huang
  • Patent number: 10408216
    Abstract: A fan motor includes an electric motor including a stationary unit and a rotary unit, an impeller including blades and rotating together with the rotary unit, a housing accommodating the electric motor and the impeller, lead wires connected to the electric motor and extending radially outward, and a guide member. The housing includes a tubular portion extending along a rotation axis and accommodating at least a part of the impeller, a flange portion protruding radially outward from at least a part of the tubular portion, a lead wire outlet port provided in at least a part of the tubular portion, and a vertical groove communicating with the lead wire outlet port and penetrating the flange portion in an axial direction. The guide member is disposed inside the vertical groove, and at least a part of the lead wires is accommodated radially inward of the guide member in the vertical groove.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 10, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Hidenobu Takeshita, Yasuyuki Kaji, Tatsuki Yoshida
  • Patent number: 10408234
    Abstract: A multi-stage ejector is provided for producing vacuums in an industrial process and includes at least two ejector units axially arranged at a predetermined distance apart in an ejector housing. Each of the at least two ejector units includes at least two parallelly arranged hollow feed-throughs for compressed air, including inlet and outlet nozzles and at least one hollow feed-through for vacuum. Each of the at least two ejector units is configured as a part produced from one piece.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: September 10, 2019
    Assignee: ONISHI TEKNIK AB
    Inventor: Daniel Onishi
  • Patent number: 10408209
    Abstract: Disclosed are a compressor applied to a refrigerator not having a cycle matching function or a refrigerator not including a controller, and capable of controlling a driving of a linear motor by the compressor itself, and a method for controlling the same.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: September 10, 2019
    Assignee: LG Electronics Inc.
    Inventors: Nayi Ryu, Min Gu
  • Patent number: 10408210
    Abstract: A control method of a driving circuit is provided for controlling a piezoelectric actuator of a piezoelectric pump to move a fluid of a fluid reservoir. Firstly, a driving voltage is outputted from the driving circuit. Then, a first inhalation adjusting process is implemented while the piezoelectric pump performs an inhaling operation. In the first inhalation adjusting process, a fluid pressure of the fluid within the fluid reservoir is detected and the fluid pressure is adjusted to the first predetermined inhalation pressure value according to the detecting result. Then, a first exhalation adjusting process is performed while the piezoelectric pump performs an exhaling operation. In the first exhalation adjusting process, the fluid pressure is detected and the fluid pressure is adjusted to the first predetermined exhalation pressure value according to the detecting result.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: September 10, 2019
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Ying-Lun Chang, Shih-Chang Chen, Jia-Yu Liao
  • Patent number: 10400787
    Abstract: A sealing device is described, for separating a first compartment from a second compartment in a turbomachine, a wet gas being processed in the first compartment. The sealing device comprises a rotary component and a stationary component. A sealing member is arranged between the rotary component and the stationary component. The device further comprises an annular wet-particles collector and an oil-jet element, mounted on the rotary component for rotation therewith. The oil-jet element is surrounded by the annular wet-particles collector, such that wet particles contacting the oil-jet element are projected by centrifugal force into the annular wet-particles collector.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 3, 2019
    Assignee: Nuovo Pignone Srl
    Inventors: Matteo Bertoneri, Emanuele Rizzo, Mirco Tavernari
  • Patent number: 10393103
    Abstract: A compressor includes a plurality of synthetic jet assemblies. Each synthetic jet assembly of the plurality of synthetic jet assemblies is in fluid communication with at least one other synthetic jet assembly of the plurality of synthetic jet assemblies. Each synthetic jet assembly of the plurality of synthetic jet assemblies includes a first side plate and a second side plate. The first side plate includes a first bimorph piezoelectric structure. The second side plate includes a second bimorph piezoelectric structure. The first side plate and the second side plate define a first fluid cavity extending between the first side plate and the second side plate.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Grover Andrew Bennett, Jr., Matthew Patrick Boespflug, Seyed Gholamali Saddoughi
  • Patent number: 10393097
    Abstract: A high pressure pump including a linear actuator having a servo motor to axially rotate a hollow rotor shaft in alternating directions, the servo motor having a stator positioned co-axially around the hollow rotor shaft with an interior of the rotor shaft being co-axially coupled to a drive member to convert axial rotation into reciprocal displacement, the drive member being constrained against linear movement and supporting a shaft. At least one piston is coupled to the shaft and the piston is arranged within a cylinder to define a pumping chamber, whereby alternating rotation of the rotor shaft causes reciprocal linear displacement of the piston to pressurize fluid in the pumping chamber. A drive mechanism includes a controller coupled to a servomotor and an encoder to measure movement of the hollow rotor or output shaft and send a feedback signal proportional to the movement to the controller.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: August 27, 2019
    Assignee: Quantum Servo Pumping Technologies
    Inventor: Darren J. Reukers
  • Patent number: 10393122
    Abstract: A pump station arrangement and a method for turning off a pump configured for pumping liquid via a conduit. The pump, before being turned off, being driven at an operational frequency (FN) by a control unit. The method is characterized by the steps of, ramping down the frequency of the pump due to a turn off instruction, the terminal frequency of the ramping down being equal to the operational frequency (FN) of the pump minus at least 10 Hz and the ramping down time being at least a reflection time (TR) for the conduit in question, and the terminal frequency of the ramping down not being less than 10 Hz, and stopping the pump after the ramping down.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: August 27, 2019
    Assignee: XYLEM EUROPE GMBH
    Inventors: Martin Larsson, Jürgen Mökander, Martin Zetterquist
  • Patent number: 10393121
    Abstract: An electrically driven pump includes a rotor assembly, and the rotor assembly includes a first part and a second part. The first part is integrally formed by injection molding, and includes an upper plate and vanes of an impeller, the upper plate is integrally formed with the vanes by injection molding, and each of the vanes is formed with a first connecting portion. The second part is integrally formed by injection molding, the first part and the second part are fixed by welding the first connecting portion and a second connecting portion, and in this way, the manufacturing cost of the rotor assembly is reduced, also a shaft sleeve integrally formed has a simple forming process.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 27, 2019
    Assignee: HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD.
    Inventors: Wei Ye, Junchao Zhang, Jun Zhang, Junfeng Bao
  • Patent number: 10386341
    Abstract: Systems and methods for pumping carbon dioxide in a chromatography system include an actuator that receives and compresses carbon dioxide at or above room temperature at a given pressure to put the carbon dioxide in or near supercritical form. This actuator can be a pre-pump disposed on the intake side of a pumping system. Alternatively, this actuator can be a primary actuator in the pumping system. The actuator includes an intake chamber that receives the carbon dioxide and a movable plunger extending into and closely received by the intake chamber. The plunger has a diameter and stroke length adapted to compress the carbon dioxide received by the intake chamber in sufficient volume at the given pressure to put the carbon dioxide in or near supercritical form at or above room temperature. A metered amount of the carbon dioxide in or near supercritical form can then be pumped.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: August 20, 2019
    Assignee: WATERS TECHNOLOGIES CORPORATION
    Inventors: Robert Dumas, Kurt D. Joudrey, Michael R. Jackson