Patents Examined by Patrick D Maines
  • Patent number: 10385754
    Abstract: An internal combustion engine fluidly coupled to an exhaust aftertreatment system that includes an exhaust purifying device is described. A pressure monitoring device is disposed to monitor a pressure differential between an inlet and an outlet of the exhaust purifying device. A method of monitoring the exhaust purifying device includes monitoring a pressure differential between an inlet and an outlet thereof, and determining an exhaust gas flowrate associated with operation of the internal combustion engine. A raw flow resistance is dynamically determined based upon the pressure differential and the exhaust gas flowrate, and an estimated flow resistance is determined based upon the raw flow resistance. The exhaust purifying device is evaluated based upon the estimated flow resistance.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: August 20, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Raffaele Esposito, Alberto Giordano
  • Patent number: 10385763
    Abstract: An exhaust system includes an electronic control unit that is configured to control a turbo bypass valve to be in a fully closed state and control an opening degree of a wastegate valve to a first predetermined opening degree during execution of fuel cut control, and maintain the turbo bypass valve in the fully closed state and control an opening degree of the wastegate valve to a second predetermined opening degree when a boost request is not made for the internal combustion engine at the end of the fuel cut control. An area of inflow of bypass gas on an upstream side end surface of the three-way catalyst when the opening degree of the wastegate valve is controlled to the first predetermined opening degree is in a different position from when the opening degree of the wastegate valve is controlled to the second predetermined opening degree.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 20, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Koichi Kitaura
  • Patent number: 10385747
    Abstract: An exhaust gas purification system for an internal combustion engine includes an oxidation catalyst device on an upstream side in an exhaust passage of an internal combustion engine and a lean NOx trap catalyst device on a downstream side, a controller which controls the exhaust gas purification system is configured to, when a temperature-rising control of an exhaust gas in a regeneration control is performed to recover a purification ability of the exhaust gas purification system, perform a control that changes a measurement position of a control temperature which is a control amount of a feedback control in the temperature-rising control, according to an excess air ratio or an oxygen concentration of the exhaust gas passing through the exhaust passage.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 20, 2019
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Daiji Nagaoka, Teruo Nakada, Takayuki Sakamoto
  • Patent number: 10385752
    Abstract: An amount of reducing agent adsorbed on a NOx catalyst when a reducing agent supply device is normal and a corresponding detected value may be estimated. The corresponding detected value may be detected by a NOx sensor, and the detected value may correspond to an amount of reducing agent adsorbed on the NOx catalyst. When the estimated amount of adsorption is larger than or equal to a first amount and is smaller than or equal to a second amount, a diagnosis of the NOx catalyst based on the detected value of the NOx sensor may be prevented. The first amount may be an amount of adsorbed reducing agent corresponding to a minimum value of the corresponding detected value. The second amount may be an amount of adsorbed reducing agent corresponding to the corresponding detected value when the amount of adsorbed reducing agent is zero and larger than the first amount.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: August 20, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Arifumi Matsumoto, Taiga Hagimoto, Kenji Furui, Makoto Ogiso, Toru Kidokoro
  • Patent number: 10378404
    Abstract: The present subject matter relates to a method and a treatment system monitor for monitoring an engine exhaust after-treatment system containing more than one Lean NOx Traps (LNT). The method includes receiving an exhaust gas of a desired air-fuel ratio upstream of a respective LNT. The LNT is further regenerated using a richer than stoichiometric exhaust air-fuel ratio and subsequently an air-fuel ratio received downstream of the LNT is evaluated. Further, a working state of a respective LNT is determined based on the monitoring of the air-fuel ratio and oxygen level upstream and downstream of the LNT.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: August 13, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Frederik De Smet, Christoph Boerensen, Frank Linzen
  • Patent number: 10378417
    Abstract: Methods and systems are provided for a particulate matter sensor arranged along an exhaust passage. In one example, a particulate matter sensor includes a series of tubes arranged in substantially a U-shape, and where the particulate matter sensor comprises one or more of a rotating element and a temperature sensing element.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: August 13, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaogang Zhang, Jianwen James Yi
  • Patent number: 10378467
    Abstract: A control device for an internal combustion engine is provided with a target air-fuel ratio setting part including a first setting control part performing normal control alternately switching a target air-fuel ratio between a predetermined first lean air-fuel ratio and a predetermined first rich air-fuel ratio and a second setting control part performing control for restoration of the storage amount stopping normal control and increasing the oxygen storage amount of a second catalyst when an output air-fuel ratio of a third air-fuel ratio sensor becomes a predetermined rich judgment air-fuel ratio or less.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 13, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Inoshita, Shuntaro Okazaki, Yuji Miyoshi
  • Patent number: 10371088
    Abstract: A vehicle is provided with an engine having an exhaust gas system comprising a muffler body containing a valve controlling exhaust gas flow through a tuning tube. The vehicle has an expander, a condenser, a pump, and an evaporator in sequential fluid communication in a closed loop containing a working fluid. The evaporator is positioned within the body and supports the valve and tuning tube therein, with the evaporator in thermal contact with exhaust gas and the working fluid.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: August 6, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Shiguang Zhou
  • Patent number: 10371031
    Abstract: Methods and systems are provided for an exhaust passage having a plurality of catalysts. In one example, a method may include injecting reductant via one or more injectors of the exhaust passage and monitoring injection conditions by flowing exhaust gas to the engine.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 6, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Frederik De Smet, Monika Angst
  • Patent number: 10364720
    Abstract: A method is disclosed for loading elongate wire lengths into elongate cells of a honeycomb ceramic substrate unit for a gaseous emissions treatment assembly, the cells each having a small cross-sectional area, the area shape matching the cross-sectional shape of the loaded wire lengths and marginally greater in area size than the wire lengths. A wire length is formed with a generally pointed end tip by pulling adjacent parts of a wire along the wire axis respectively in opposite directions from a desired wire breakage site. The tension and timing of the pulling operation are selected so that a desired tip profile is achieved. Initial alignment is done using machine vision. Subsequent adjustment is effected in dependence on feedback from sensors mounted close to the end of a wire insertion arm. Breakage and push insertion of wires is done using alternating gripping and moving of chucks or collets which have aperture shapes close in profile to the outer profile of the wire lengths.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 30, 2019
    Assignee: ADVANCED TECHNOLOGY EMISSION SOLUTIONS INC.
    Inventors: Robin Crawford, John Douglas
  • Patent number: 10364723
    Abstract: The present invention is a method for removing pollution from exhaust gas circulating in an exhaust line (12) of an internal-combustion engine. The exhaust line comprises an ammonia-sensitive catalyst (46) with selective NOx catalytic reduction traversed by the gas and an injector (56, 58) for injecting a reductant of the pollutants The catalyst decomposes the reductant into a hydrogen gas phase and an ammonia gas phase and, for a gas temperature below approximately 150┬░ C. injects the hydrogen into the exhaust line in combination with a hydrogen-sensitive NOx catalyst.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 30, 2019
    Assignee: IFP ENERGIES NOUVELLES
    Inventor: St├ęphane Raux
  • Patent number: 10364719
    Abstract: There is provided an exhaust gas purification system including: a NOx storage-reduction catalyst that is provided in an exhaust system of an internal combustion engine to reduce and purify NOx in exhaust gas; a degree of deterioration estimation module 120 for estimating a degree of deterioration of the NOx storage-reduction catalyst; a regeneration control unit 100 for executing a regeneration process in which exhaust gas is enriched so as to restore a NOx storage capacity of the NOx storage-reduction catalyst; an interval setting module for setting a target interval from an end of the regeneration process to a start of the subsequent regeneration process by the regeneration control unit; and an interval target value correction module for correcting the target interval based on the degree of deterioration that is estimated by the degree of deterioration estimation module.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 30, 2019
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka
  • Patent number: 10359012
    Abstract: An internal combustion engine includes, in addition to an LPL-EGR system, two water vapor separation film modules for fresh air and for EGR gas. One module 34 is connected to a pressure reducing pump 40 through a suction passage 38. Other module 36 is connected to a pressure reducing pump 44 through a suction passage 42. A condenser 54 that condenses water vapor that flows through the suction passage 38 is provided in the suction passage 38. A water tank 56 that temporarily accumulates condensed water that is discharged from the condenser 54 is provided on a downstream side relative to the condenser 54. The water tank 56 is connected to injectors 60 that inject water from the water tank 56 into intake ports of respective cylinders or into respective cylinders.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: July 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kazuki Kikuchi
  • Patent number: 10352214
    Abstract: A gaseous emissions treatment assembly has a honeycomb ceramic substrate body with a plurality of cells for passage of exhaust gases. Respective lengths of metal wire are located in a number of the cells. An induction heating coil is mounted adjacent the substrate body for generating a varying electromagnetic field, thereby inductively to heat the lengths of wire and thereby to heat the substrate body.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: July 16, 2019
    Assignee: ADVANCED TECHNOLOGY EMISSION SOLUTIONS INC.
    Inventors: Robin Crawford, John Douglas
  • Patent number: 10352232
    Abstract: A turbocharger includes: a shaft provided with a small-diameter portion, and two large-diameter portions formed on two sides of the small-diameter portion; and a semi-floating bearing to rotatably support the shaft. The semi-floating bearing includes a cylindrical body into which the shaft is inserted. An inner peripheral surface of the body includes: two bearing surfaces opposed to the large-diameter portions of the shaft; a non-bearing surface located between the two bearing surfaces, having a larger inner diameter than inner diameters of the bearing surfaces; and an oil passage opened to the non-bearing surface to supply lubricant oil to a gap in a radial direction between the non-bearing surface and the shaft. At least one of the two bearing surfaces extends more in an approaching direction of the two bearing surfaces than does the large-diameter portion opposed in the radial direction to the one bearing surface.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: July 16, 2019
    Assignee: IHI Corporation
    Inventors: Yutaka Uneura, Yuichi Daito, Hideyuki Kojima, Tomomi Sugiura
  • Patent number: 10344665
    Abstract: A compressor includes a compressor housing defining a cavity, and a compressor wheel disposed in the cavity, the compressor housing defining an inlet for leading air into the compressor wheel, a discharge volute for receiving air compressed by the compressor wheel, and a recirculation duct connected to the inlet at a location upstream of the compressor wheel. A recirculation valve is disposed between the discharge volute and the recirculation duct for regulating air flow through the recirculation duct into the inlet. The recirculation duct defines multiple parallel channels, the multiple parallel channels respectively conducting multiple parallel streams of air from the recirculation valve into the inlet.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 9, 2019
    Assignee: Garrett Transportation I Inc.
    Inventors: Manuel Marques, Gladys Gaude, Bruno Batista, Alexandre Rigault
  • Patent number: 10344688
    Abstract: An apparatus for controlling an engine includes an engine including a plurality of combustion chambers for generating driving torque by burning a fuel, a high-capacity turbocharger including a turbine rotated by the exhaust gas exhausted from the combustion chambers and a compressor rotated together with the turbine for compressing exhaust gas exhausted from the combustion chamber, an electric supercharger including a motor and an electric compressor operated by the motor, a throttle valve for adjusting an intake air amount supplied to the combustion chamber, a driving information detector for detecting driving information including a required torque and an engine speed, and a controller for determining a driving region of the engine from the driving information detected by the driving information detector, and controlling engine torque by adjusting an opening of the throttle valve and an output of the motor according to the driving region of the engine.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: July 9, 2019
    Assignee: Hyundai Motor Company
    Inventors: Dong Hee Han, Joowon Lee, Hyungbok Lee, Dong Ho Chu, Jong Il Park
  • Patent number: 10344683
    Abstract: Disclosed is a combustion engine and method for engine braking therein including an intake air channel having a first pressure, a first inlet valve between the intake air channel and the cylinder volume, an exhaust air channel having a second pressure, a first outlet valve between the cylinder volume and the exhaust air channel, and a storage reservoir having a third pressure higher than the first and second pressures, the storage reservoir being arranged in controllable fluid communication with the cylinder volume. The method takes place during two-stroke cycle and includes: displacing the piston from upper dead center (UDC) towards lower dead center (LDC), keeping the first inlet valve open during at least part of the travel from UDC to LDC, displacing the piston from LDC towards UDC, and keeping the fluid communication between the storage reservoir and cylinder volume open during at least a part of such travel.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: July 9, 2019
    Assignee: FREEVALVE AB
    Inventors: Anders Hoglund, Urban Carlson
  • Patent number: 10344668
    Abstract: A boost system for providing boost pressure to an air intake manifold of an engine includes a supercharger having rotors and a supercharger input shaft, an electric motor/generator, and a planetary gear set. The planetary gear set operates to transfer torque between the supercharger input shaft, the electric motor/generator and a crankshaft of the engine. The boost system can have a compact configuration.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: July 9, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventors: Robert Philip Benjey, Vasilios Tsourapas, Daniel R. Ouwenga, Matthew Joseph Glass, Brian Thompson Smith, Sara Rose McClellan
  • Patent number: 10337391
    Abstract: A device for cooling and heating a urea solution to be injected into exhaust gas discharged from an engine in order to reduce nitrogen oxides in the exhaust gas includes an engine including a cooling fan, a coolant pump, and a main cooler; a urea solution tank storing the urea solution and having an embedded heat exchange pipe through which first coolant and second coolant circulates; an additional coolant tank storing the second coolant; a water pump supplying the second coolant from the additional coolant tank to the heat exchange pipe; a valve configured to be opened or closed in order to supply the first coolant and the second coolant to the heat exchange pipe through a supply line, and to move the first coolant and the second coolant, which are discharged from the heat exchange pipe through a discharge line, to rise coolant pump and the additional coolant tank, respectively and a controller for supplying the second coolant to the heat exchange pipe through the supply line when the urea solution temperatu
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 2, 2019
    Assignee: Volvo Construction Equipment AB
    Inventors: Dong-Myoung Choi, Yu-Hee Lee, Eun-Geon Yuk, Sung-Hwan Shin, Min-Su Choi