Patents Examined by Devon C. Kramer
  • Patent number: 11905958
    Abstract: A vacuuming device comprises a main body, a rotary shaft, a vacuum pump rotor, a motor stator and a motor rotor. An air inlet, an air outlet, an oil storage chamber and a motor chamber are disposed in the main body. The oil storage chamber communicates with the air outlet. The rotary shaft is rotationally connected to the main body. The vacuum pump rotor is fixedly mounted to the rotary shaft and cooperatively forms a stator cavity of the vacuum pump with the inner-wall of the main body. The air inlet and the oil storage chamber communicate with the stator cavity of the vacuum pump respectively. The vacuuming device reduces the cost of manufacturing, optimizes the spatial structure and downsizes the device.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: February 20, 2024
    Inventor: Hong Wang
  • Patent number: 11898418
    Abstract: A system is provided for use with an electrical submersible pump (ESP). The system includes an ESP mounted on a tubing and a magnetic field source positioned above the ESP. The magnetic field source generates a magnetic field configured to suspend iron-containing particles above a discharge of the ESP. The magnetic field prevents an accumulation of the iron-containing particles onto components of the ESP during a powered-off state of the ESP.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: February 13, 2024
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohannad Abdelaziz, Rafael Adolfo Lastra Melo
  • Fan
    Patent number: 11879475
    Abstract: A fan includes a motor base, a bearing, an impeller, a stator and a magnetic element. The motor base has a bearing stand in a center portion thereof. The impeller includes a metallic case, plural blades and a rotating shaft. A top surface of a top wall of the metallic case continuous with curved surface that defines part of a central opening, and a depth of the central opening is equal to a thickness of the top wall. The blades are disposed around an outer periphery of said metallic case. The rotating shaft is inserted into the central opening and penetrated through the bearing stand, wherein no raised ring structure is formed in the top wall, and the rotating shaft and the metallic case are jointed together by a laser welding process. The magnetic element is disposed on an inner wall of the metallic case and aligned with the stator.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: January 23, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chiu-Kung Chen, Chao-Wen Lu
  • Patent number: 11879465
    Abstract: A compressor includes a motor unit that includes a rotor and a stator, a compressor unit that compresses a refrigerant by rotation of the rotor, and a container that forms an internal space in which the motor unit and the compressor unit are housed, wherein in the rotor, a rotor gas passage through which the refrigerant flows from an under-motor space of the internal space arranged on a side of the motor unit that is close to the compressor unit to an above-motor space of the internal space arranged on a side of the motor unit that is distant from the compressor unit is formed, in the stator, a stator gas passage through which the refrigerant flows from the under-motor space to the above-motor space is formed, and a cross-sectional area of the stator gas passage is 6.0 times or less a cross-sectional area of the rotor gas passage.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: January 23, 2024
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Kenshi Ueda, Akira Inoue
  • Patent number: 11879455
    Abstract: A cam ring of a supply pump revolves around a camshaft without rotating. A tappet reciprocates in a direction perpendicular to the camshaft in response to revolution of the cam ring such that the tappet slides along a cam ring sliding surface. A plunger reciprocates together with the tappet to pressurize and deliver fuel. The cam ring sliding surface is shaped in a convex form that has a curved contour line which is non-circular. A height of an inside of the cam ring sliding surface is higher than a height of a periphery of the cam ring sliding surface. Specifically, an ellipsoidal surface portion is formed at the cam ring sliding surface, and an axial direction of a major axis of the ellipsoidal surface portion is set to coincide with a direction perpendicular to a sliding direction of the cam ring sliding surface.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: January 23, 2024
    Assignee: DENSO CORPORATION
    Inventors: Toshiaki Hijima, Bansei Kobayashi
  • Patent number: 11867162
    Abstract: A pump having two pistons which are driven by a cam belonging to an external rotor and which are inserted into two cylinder blocks mounted parallel to each other in such a way as to form two opposite, parallel, eccentric pump chambers The pump chambers have at least one inlet port through which liquid is drawn into the pump chambers during the fill stroke of the pistons, and then expelled from the pump chambers during the discharge stroke of the pistons to at least one outlet port, the outflow rate of which is constant and even.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 9, 2024
    Assignee: SWISSINNOV PRODUCT SARL
    Inventors: Florent Junod, Thierry Navarro
  • Patent number: 11852143
    Abstract: A vacuum pump system includes an air-cooled, O-ring sealed vacuum pump and an oil management system with an LED illuminated clear tank for observation of the oil condition as well as a large oil inlet and outlet for rapid and safe oil changes while the pump is operating. The oil management system is also configured to prevent oil from the sump from being drawn into an evacuated AC/R system when the pump is stopped and the intake ports are not sealed from the high vacuum AC/R system. The oil management system includes a preferential vacuum relief system that allows air instead of the oil from the sump to be drawn back into the evacuated lines.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: December 26, 2023
    Assignee: Fieldpiece Instruments, Inc.
    Inventor: Tinggui Hong
  • Patent number: 11841010
    Abstract: Provided is a variable displacement compressor that is directed to cost reduction and productivity enhancement of a second control valve that adjusts an opening degree of a discharge passage for discharging a refrigerant in a controlled pressure chamber to a suction chamber. The variable displacement compressor includes the second control valve (400) configured to decrease an opening degree of the discharge passage to a minimum value when a first end surface (421a) of a valve body (420) accommodated in a valve chamber (410) comes into contact with a first end wall surface (411) of the valve chamber (410) to close a second port (432) and a third port (433), and configured to increase the opening degree of the discharge passage to a maximum value when the first end surface (421a) of the valve body (420) separates from the first end wall surface (411) of the valve chamber (410) to open the second port (432) and the third port (433).
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: December 12, 2023
    Assignee: SANDEN CORPORATION
    Inventor: Yukihiko Taguchi
  • Patent number: 11828282
    Abstract: A suction cover assembly for a reciprocating pump includes a suction cover nut having a nut face and a thread configured to threadably connect the suction cover nut to a fluid cylinder of the reciprocating pump. The suction cover assembly includes a suction cover having a cover face. The suction cover is configured to be held by the fluid cylinder such that the cover face opposes the nut face of the suction cover nut. The suction cover includes first and second seals having a leakage trap defined therebetween. The leakage trap is configured to trap leakage pressure during operation of the reciprocating pump. The suction cover includes at least one leakage channel that is configured to channel the leakage pressure from the leakage trap to an interface between the cover face and the nut face.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: November 28, 2023
    Assignee: SPM Oil & Gas Inc.
    Inventor: Joseph Byrne
  • Patent number: 11817758
    Abstract: A fluid pump includes an electric motor having an armature with a commutator and a motor frame which supports a pair of permanent magnets which are located radially outward from the armature. The motor frame has a support stem extending axially in a direction away from the commutator. A pump section is rotationally coupled to the electric motor and pumps the fluid. First and second motor brushes deliver electricity to the commutator and are urged into electrical contact with the commutator by a first and second springs. The first and second springs are mechanically grounded to a brush spring retainer fixed to the motor frame. The brush spring retainer includes a central portion having an opening within which the support stem is received in an interference fit. A support arm extends from the central portion such that the first and second springs are mechanically grounded to the support arm.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: November 14, 2023
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Conrado Carrillo, Aldo Venegas
  • Patent number: 11808192
    Abstract: An exhaust gas system includes an engine-turbine exhaust gas conduit, a turbocharger, a turbine-housing exhaust gas conduit, an injection housing, a dosing module, and a bypass system. The engine-turbine exhaust gas conduit is configured to receive exhaust gas. The turbocharger includes a turbine. The turbine is coupled to the engine-turbine exhaust gas conduit. The turbine-housing exhaust gas conduit is coupled to the turbine. The injection housing is coupled to the turbine-housing exhaust gas conduit and centered on an injection housing axis. The dosing module is coupled to the injection housing and includes an injector. The injector is configured to dose reductant into the injection housing. The injector is centered on an injector axis. The bypass system includes a bypass inlet conduit, a bypass valve, and a bypass outlet conduit. The bypass inlet conduit is coupled to the engine-turbine exhaust gas conduit.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: November 7, 2023
    Assignee: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Colin L. Norris, Matthew Henry, Stephen W. Caddy, Randolph G. Zoran, Stephen M. Holl, Matthew Robert Brookes, Jamie Archer, John M. Clark
  • Patent number: 11802552
    Abstract: A capacity control valve includes a valve housing to which a suction fluid having a suction pressure and a control fluid having a control pressure are supplied; a solenoid; a CS valve body that partitions an inside of the valve housing into a first space, and a second space and moves according to the suction pressure of the suction fluid and the control pressure of the control fluid, and a CS valve seat with which the CS valve body is configured to come into contact; a biasing member biasing the CS valve body in a valve opening direction of the valve; and a pilot valve formed of a pilot valve body to be driven by the solenoid and a pilot valve seat with which the pilot valve body is configured to come into contact.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: October 31, 2023
    Inventors: Kohei Fukudome, Keigo Shirafuji, Masahiro Hayama, Toshinori Kanzaki, Keichi Urushiyama
  • Patent number: 11795953
    Abstract: An air mover is provided. The air mover includes a housing, a spacer, a co-axial motor, a first fan and a second fan. The housing includes a first housing member and a second housing member. A first inlet, a second inlet and an outlet are formed on the housing. The first inlet is formed on the first housing member and the second inlet is formed on the second housing member. The spacer is disposed between the first housing member and the second housing member. The co-axial motor includes a shaft, wherein the co-axial motor is disposed on the spacer. The shaft includes a first free end and a second free end. The first free end extends in a first direction, and the second free end extends in a second direction.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: October 24, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jhih-Jhong Chen, Chun-Wei Chen, Wen-Hsiang Lin
  • Patent number: 11788454
    Abstract: A mixer assembly for a vehicle exhaust system includes a mixer shell defining an internal cavity, wherein the mixer shell includes an upstream end configured to receive exhaust gases and downstream end. A reactor is positioned within the internal cavity and has a reactor inlet configured to receive injected fluid and a reactor outlet that directs a mixture of exhaust gas and injected fluid into the internal cavity. A flow diverter is associated with the reactor to direct exhaust gas bypassing the reactor to mix with the mixture exiting the reactor outlet prior to exiting the downstream end of the mixer.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: October 17, 2023
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Eduardo Alano, Randall Cvelbar, Amaresh Rakkasagi, Anthony Burnett, Jerome Hornback
  • Patent number: 11761360
    Abstract: A control method for a continuously variable valve lift mechanism includes: controlling a continuously variable valve lift mechanism to enter a limp mode when the continuously variable valve lift mechanism fails and disables an automatic valve lift changing function; driving and forcing the continuously variable valve lift mechanism to move to a maximum lift position; and triggering a self locking function to self lock the continuously variable valve lift mechanism at the maximum lift position when the continuously variable valve lift mechanism reaches the maximum lift position. A control system for a continuously variable valve lift mechanism, and a vehicle are also provided.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 19, 2023
    Assignee: GREAT WALL MOTOR COMPANY LIMITED
    Inventors: Tao Liu, Fabao Yang, Liming Xu, Ji Yin, Jiajia Hu, Luping Liu, Song Zhang, Yanlong Fang
  • Patent number: 11761352
    Abstract: A seal assembly for a turbine engine extends along a center axis and includes a seal support and a seal carrier configured to translate relative the seal support. A seal is connected to the seal carrier and a spring is disposed between the seal support and the seal carrier. A spring carrier is disposed between the spring and the seal support. A first end of the spring is connected to the spring carrier and the spring carrier is connected to the seal support. The spring includes a second end disposed opposite the first end of the spring. The second end of the spring contacts the annular seal carrier.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: September 19, 2023
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Russell B. Witlicki
  • Patent number: 11761356
    Abstract: An internal combustion engine for a motor vehicle includes a crankshaft, a camshaft, a cylinder, a piston movably disposed in the cylinder and coupled to the crankshaft for driving the crankshaft, a first gas exchange valve which is assigned to the cylinder, a first valve clearance compensation device, where via the first valve clearance compensation device the first gas exchange valve is displaceable between a first open position and a first closed position by a first cam of the camshaft, and a control unit. The control unit is configured to align the camshaft such that the first valve clearance compensation device is pressure-loaded in the idle state of the crankshaft by a plateau area assigned to the first cam to hold the first gas exchange valve in the first open position.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 19, 2023
    Assignee: Daimler AG
    Inventors: Johannes Ernst, Franz Huber, Jochen Hufendiek, Christian Lorenz, Tilmann Roemheld, Frank Strauss, Ruediger Weiss, Hardy Weymann
  • Patent number: 11753971
    Abstract: A continuously variable valve duration (CVVD) system includes a controller configured to determine whether a learning value existing in the CVVD system is required to be verified during one of a hardware abnormality, a learning value abnormality, and a motor voltage abnormality. In particular, the controller performs a learning value verification control using a rotation detection value and switches from a learning value verification control to a re-learning control when re-learning is required.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: September 12, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventor: Bon-Chang Koo
  • Patent number: 11725546
    Abstract: A phaser which has an offset or remote pilot valve added to the hydraulic circuit to manage a hydraulic detent switching function, in order to provide a mid-position lock for cold starts of the engine, either during cranking or prior to complete engine shutdown. The mid-position locking of the phaser positions the cam at an optimum position for cold restarts of the engine.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: August 15, 2023
    Assignee: BORGWARNER INC.
    Inventor: Brian Kenyon
  • Patent number: 11719208
    Abstract: A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface of the valve. A cylindrical sleeve is disposed around the regulation portion. When the end surface of the valve is in contact with the regulation portion, the sleeve covers a tapered surface of the valve.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: August 8, 2023
    Assignee: DENSO CORPORATION
    Inventor: Hiroshi Inoue