Patents Examined by Diem T Tran
  • Patent number: 10781765
    Abstract: An internal combustion engine comprises an exhaust purification catalyst, a downstream side air-fuel ratio sensor which is arranged at a downstream side of the exhaust purification catalyst, and an air flow meter which detects an amount of intake air. The control system of the internal combustion engine controls the exhaust air-fuel ratio to a target air-fuel ratio by feedback control, sets the target air-fuel ratio at a lean air-fuel ratio when the output air-fuel ratio of the downstream side air-fuel ratio sensor becomes a rich air-fuel ratio, and sets the target air-fuel ratio at a rich air-fuel ratio when the output air-fuel ratio of the downstream side air-fuel ratio sensor becomes a lean air-fuel ratio.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: September 22, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koichi Hoshi, Norihisa Nakagawa, Shuntaro Okazaki, Yuji Yamaguchi
  • Patent number: 10774713
    Abstract: A reducing agent supply device includes a tank, an adding valve, a pump, and an electronic control unit. The adding valve is configured to receive the reducing agent supplied from the tank and inject the reducing agent. The pump is configured to send the reducing agent from the tank and suction the reducing agent back into the tank. The electronic control unit is configured to open the adding valve and suction the reducing agent back into the tank as a purge control when the internal combustion engine is commanded to stop. The electronic control unit is configured to increase an amount of a return suction of the reducing agent during the purge control as an amount of the reducing agent, remaining in a supply path and the adding valve when the stop command is given, increases.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 15, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kingo Suyama
  • Patent number: 10774764
    Abstract: In order to adequately suppress both an increase in NOx emission amount and deterioration of fuel consumption rate, the present invention provides a fuel injection control information generation device equipped with: a test point information storage unit for holding test point information including a plurality of test points constituted by sets of engine speed, fuel injection amount, and oxygen concentration; and a control information generation unit for generating, for each test point included in the test point information, fuel injection control information in which the engine speed, fuel injection amount, and oxygen concentration of the test point are associated with an optimum fuel injection timing at which an index pertaining to the total of a fuel consumption rate and an NOx emission amount in the test point becomes the smallest.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 15, 2020
    Assignees: ISUZU MOTORS LIMITED, TRANSTRON INC.
    Inventors: Satoshi Hanawa, Hidekazu Fujie, Yoshiaki Ikai, Takuma Degawa
  • Patent number: 10774707
    Abstract: A non-transitory computer-readable medium having a NOx sensor purification instructions for a NOx sensor causes: an on-vehicle electronic computer mounted in the vehicle, when it comes to a predetermined purification time, to execute a start procedure to send a start command to perform a purification control to the control unit; and control unit, in response to the start command, to execute a purification procedure to perform the purification control which causes the current flowing in the reference pump cell from the reference pump current to be a purification pump current, which is set to a current value larger than the reference pump current.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: September 15, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Kouji Sakumoto
  • Patent number: 10774715
    Abstract: The present invention is directed at stabilization of aqueous urea solutions containing organometallic catalyst precursors. Stabilization can be achieved by monitoring and controlling the solution pH.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 15, 2020
    Assignee: Southwest Research Institute
    Inventors: Ryan C. Hartley, Cary A. Henry
  • Patent number: 10774703
    Abstract: An oil mist separator includes a housing and an oil separating part which separates oil mist in blow-by gas. The oil separating part is composed of a first oil separating part and a second oil separating part. The housing is provided inside with a partition wall which defines chambers formed for the respective oil separating parts, and second nozzles which jet out blow-by gas are provided in a second partition wall which defines a second chamber in which the downstream-side second oil separating part is provided. The second nozzles can serve, for example, as passages for discharging the oil separated by the second oil separating part toward a drain pipe which is provided in a first chamber.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: September 15, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto Morishita, Yoji Horiuchi, Naritsune Miyanaga
  • Patent number: 10767531
    Abstract: An operating liquid tank for a motor vehicle, comprising a tank wall enclosing a tank volume that can be filled with an operating liquid, a filling arrangement designed for introducing operating liquid into the tank volume, and a removal arrangement designed for the removal of operating liquid from the tank volume, wherein the removal arrangement comprises a pump assembly with a pump and a pump drive, the pump assembly comprises at least two assembly components that are formed separately from one another and are or can be coupled magnetically to one another, and of which a first assembly component as drive component comprises at least one part of the pump drive and a second assembly component as conveying component comprises a conveying part of the pump that can be driven by the pump drive relative to a conveying component housing for movement, wherein the tank wall extends between the drive component and the conveying component and physically separates the conveying component located on the inner face of the
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: September 8, 2020
    Assignee: Röchling Automotive SE & Co. KG
    Inventors: Luca Marini, Ivan De Metri, Fabrizio Chini
  • Patent number: 10767584
    Abstract: Systems and apparatuses include an apparatus including an aftertreatment system control circuit structured to receive a signal indicative of an exhaust gas characteristic from a sensor, determine an aftertreatment system characteristic based on the exhaust gas characteristic, determine an acceptable input value responsive to the aftertreatment system characteristic, and control at least one of a fuel system actuator and an air handling actuator to achieve or substantially achieve the acceptable input value.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 8, 2020
    Assignee: Cummins Inc.
    Inventors: Michael Haas, Adam W. Kidd, Jeffrey David Selwyn Diwakar Abraham
  • Patent number: 10760463
    Abstract: An exhaust treatment device for a diesel engine includes a parked regeneration requirement notification component, and a parked regeneration start operation component, a regeneration process of a diesel particulate filter includes an automatic regeneration process and a parked regeneration process, the automatic regeneration process is automatically started when an estimation value of particulate material accumulated in the diesel particulate filter reaches a predetermined value, and the parked regeneration process is performed when first and second conditions are satisfied, the first condition being that a parked regeneration requirement notification component performs a notification of a parked regeneration requirement when a number of cancellations of the automatic regeneration process reaches a predetermined value or more, the second condition being that the parked regeneration start operation component is subjected to a start operation during a parked state in which an engine equipped machine is neither
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: September 1, 2020
    Assignee: KUBOTA Corporation
    Inventors: Masayuki Togawa, Kazunari Tsujino
  • Patent number: 10746075
    Abstract: A vehicle system includes a vehicle component, a battery, and a thermoelectric module coupled to the component to allow heat transfer between the catalytic converter and the thermoelectric module, wherein the thermoelectric module is electrically connected to the battery. The vehicle system further includes a temperature sensor coupled to the vehicle component. The temperature sensor is configured to measure the temperature of the vehicle component. The vehicle system further includes a controller in electronic communication with the thermoelectric module. The controller is programmed to switch the thermoelectric module among the heating mode, the cooling mode, and the power-generation mode based on the temperature of the vehicle component. The vehicle component may be an exhaust manifold, a turbocharger turbine housing, an exhaust gas conduit coupled between an exhaust manifold and a catalytic converter, and/or a catalytic converter.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 18, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Su Jung Han, Sharon Xiaobin Li
  • Patent number: 10746068
    Abstract: A system for reutilizing exhaust energy including a decomposition reactor, a turbine including a magnet, the turbine in fluid communication with the decomposition reactor, a coil disposed proximate to the decomposition reactor, the coil electrically coupled to the magnet, and a controller communicatively coupled to the turbine, the controller structured to determine exhaust energy output of a turbine associated with an exhaust system, and cause generation of a magnetic field based on the exhaust energy output, wherein the magnetic field causes a portion of the decomposition reactor to heat.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 18, 2020
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Gaurav Hemant Pandit, John G. Buechler, Thyago Cruz
  • Patent number: 10738675
    Abstract: An exhaust system provided with exhaust gas after-treatment for a combustion engine comprising an exhaust pipe and a pumping device, which is buried inside the tank, from which it draws so as to feed a water solution of urea under pressure to an electromagnetic injector; the tank is supplied with urea powder and water, which are mixed on the inside so as to obtain a water solution of urea with a variable concentration; and a water supply circuit to supply water to the tank, which is provided with a first pipe, which draws the water from a basin and is regulated by a first valve, which allows water to be introduced into the tank, if necessary, or to be drained to the surrounding environment when the water quantity already contained in the tank is sufficient.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: August 11, 2020
    Assignee: MAGNETI MARELLI S.p.A.
    Inventors: Matteo De Cesare, Nicola Torcolini
  • Patent number: 10731532
    Abstract: The problem of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance under a high Ga condition while having a resistance to stress such as high-temperature and poisonous substances. The present invention relates to an exhaust gas purification catalyst comprising two or more catalyst coating layers on a substrate, wherein a lower catalyst coating layer that is present lower with respect to an uppermost catalyst coating layer has a structure where a large number of voids are included and high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain proportion or more of the whole volume of voids, thereby to improve gas diffusivity in the lower catalyst coating layer.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: August 4, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Hiromasa Suzuki, Masahide Miura, Yoshinori Saito, Satoru Katoh, Toshitaka Tanabe, Tetsuhiro Hirao, Tatsuya Ohashi, Hiroaki Naito, Hirotaka Ori, Michihiko Takeuchi, Keiichi Narita
  • Patent number: 10731537
    Abstract: A regeneration compliance system is provided and includes navigation, regeneration, zone and timing modules. The navigation module determines a location of a vehicle. The regeneration module determines a state of a PF of an exhaust system of an engine of the vehicle and whether to regenerate the PF based on the state of the PF. The zone module, based on the location of the vehicle, determines whether the vehicle is in a regeneration permitted zone and where regeneration permitted and prohibited zones are located relative to the vehicle. The timing module estimates time to a next regeneration permitted zone or an amount of time remaining in a current regeneration permitted zone. The regeneration module controls when the PF is regenerated based on (i) the state of the PF, and (ii) the time to the next regeneration permitted zone or the amount of time remaining in the current regeneration permitted zone.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: August 4, 2020
    Assignee: DENSO International America, Inc.
    Inventor: Edward Szczepanski
  • Patent number: 10718246
    Abstract: A hydraulic circuit includes a pump in fluid communication with a reservoir containing a liquid to be pumped. The pump includes an inlet and an outlet. The hydraulic circuit also includes a venturi pump in fluid communication with the reservoir and with the outlet of the pump, and an injection valve including a cooling feature. The injection valve is in fluid communication with the outlet of the pump, and is configured to dispense liquid supplied to the injection valve by the pump. The cooling feature is in fluid communication with the venturi pump. The pump is configured to produce a first flow of liquid, and the hydraulic circuit is configured to supply a first portion of the first flow of liquid to the injection valve for dispensing by the injection valve and a second portion of the first flow of liquid to the venturi pump.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 21, 2020
    Assignee: Micropump, Inc., a Unit of IDEX Corporation
    Inventors: Charles Carr, David J. Grimes
  • Patent number: 10704494
    Abstract: A heat recovery structure includes a pipe portion, a heat exchanging portion and an actuator. The pipe portion is inclined such that a side face of the pipe portion faces a diagonally lower side, and is configured such that exhaust gas from an engine circulates through the pipe portion. The heat exchanging portion is configured to communicate with the pipe portion and to perform heat-exchange between a heat medium and the exhaust gas flowing into the heat exchanging portion from the pipe portion such that the exhaust gas thus subjected to the heat-exchange with the heat medium flows out to the pipe portion. The actuator is configured to operate a selector valve configured to switch between a state where the exhaust gas circulates through the pipe portion and a state where the exhaust gas circulates through the heat exchanging portion.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 7, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SANGO Co., LTD.
    Inventors: Toshio Murata, Koji Ichikawa
  • Patent number: 10690032
    Abstract: A urea concentration sensor reflector system includes a urea concentration sensor reflector assembly including a reflector having an upwardly convex dome shape integrally connected to and supported by multiple legs. The reflector includes a concave-shaped inner surface. The multiple legs are connected to and support the urea concentration sensor reflector assembly to an upward directed surface of a bottom tank wall of a urea storage tank. A sound wave generator and receiver is fixed to the bottom tank wall directly below and centrally aligned with the reflector. The sound wave generator and receiver generates ultrasonic sound waves directed upwardly toward the reflector. A concentration of a liquid urea in the urea storage tank is determined based on a time for the ultrasonic sound waves to travel to the reflector and return as echo signals to the sound wave generator and receiver, and a temperature of the liquid urea.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: June 23, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Adrian Carpinisan
  • Patent number: 10690031
    Abstract: A method for treating exhaust gas emitted by an internal combustion engine (ICE) in a hybrid architected motor vehicle with an electric motor. The method includes disposing a heater in the exhaust, disposing a first Lean NOx Trap (LNT) downstream of the heater, disposing a second LNT downstream of the first LNT, disposing a passive selective catalytic reduction (SCR) downstream of the second LNT, disposing a hydrocarbon oxidation catalyst downstream of the SCR. The method also includes connecting a controller to the heater, the controller executes a method of controlling the NOx emissions of the ICE, the method includes monitoring a torque demand for the vehicle, determining if the torque demand is large enough to cause the ICE to generate excessive NOx, operating the ICE at a torque less than the torque demand, and operating the motor with the ICE to provide sufficient torque to satisfy the torque demand.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 23, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Eduardo Jose Barrientos Betancourt, Roberto Romanato, Francesco Bechis, Francesco Concetto Pesce, Jaime Andres Cespedes Garcia
  • Patent number: 10688476
    Abstract: Provided is an exhaust gas purification catalyst in which the performance of a catalyst metal can be brought out properly, the purification catalyst boasting excellent purification performance during warm-up of an internal combustion engine. The exhaust gas purification catalyst 10 is provided with a substrate 1 and a catalyst layer. A leading end section 1a positioned upstream in the direction of exhaust gas flow (arrow) has a portion in which the flow rate of exhaust gas is relatively high and a portion in which the flow rate of exhaust gas is relatively low during warm-up of the internal combustion engine. The catalyst, layer in the portion of relatively high flow rate of exhaust gas has a high density section 6 in which a noble metal, is supported at relatively high density. The high density section 6 is formed to be shorter than the total length of the exhaust gas purification catalyst 10 from the leading end section 1a in the direction of exhaust gas flow.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: June 23, 2020
    Assignee: Cataler Corporation
    Inventors: Ryota Onoe, Shingo Sakagami, Tsuyoshi Ito, Yuta Morishita
  • Patent number: 10683820
    Abstract: A vehicle propulsion system includes an internal combustion engine with a first combustion chamber and a second combustion chamber, a catalytic converter in an exhaust stream in communication with an exhaust of the internal combustion engine, a gasoline particulate filter in the exhaust stream downstream of the catalytic converter, and a controller in communication with the internal combustion engine. The controller is programmed to determine if a soot loading of the gasoline particulate filter exceeds a predetermined threshold, and adjust a set of engine operating parameters of the internal combustion engine to disable combustion in the first combustion chamber and enrich a fuel mixture in the second combustion chamber if the soot loading in the gasoline particulate filter exceeds the predetermined threshold.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 16, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Rafat F. Hattar