Patents Examined by Jonathan R Matthias
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Patent number: 10746138Abstract: An EGR cooler may include an EGR cooler housing having top, bottom and side walls, inlet and outlet end walls disposed at opposite ends, and a longitudinal axis extending in a direction of exhaust gas flow from the inlet end to the outlet end. A plurality of cooling tubes extend through the EGR cooler between the top and bottom walls, and are arranged in a cooling tube array to form an exhaust gas receiving area at an upstream side of the cooling tube array proximate the inlet end wall so that exhaust gas flowing into the EGR cooler through an exhaust gas inlet opening will flow into the exhaust gas receiving area and then disperse through the cooling tube array. A pitch distance between the cooling tubes may be greater proximate the longitudinal axis than proximate the side walls to promote flow through, instead of around, the cooling tube array.Type: GrantFiled: April 30, 2018Date of Patent: August 18, 2020Assignee: Progress Rail Locomotive Inc.Inventors: Sudarshan Kedarnath Loya, Steven D. Johnson, Vijaya Kumar, Laura Elise Rasmussen, Adarsh Gopinathan Nair, Michael B. Goetzke
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Patent number: 10746069Abstract: An exhaust system for a work vehicle includes a selective catalytic reduction (SCR) assembly that includes an SCR module. The SCR module includes a first exhaust flow path and a second exhaust flow path. The SCR assembly also includes an inlet configured to receive a flow of an exhaust solution, to direct a first portion of the exhaust solution to the first exhaust flow path, and to direct a second portion of the exhaust solution to the second exhaust flow path. The SCR assembly further includes an outlet mixer configured to receive the first and second portions of the exhaust solution and to direct the first and second portion of the exhaust solution out of the SCR assembly. The outlet mixer includes one or more features configured to mix the first and second portions of the exhaust solution.Type: GrantFiled: April 30, 2018Date of Patent: August 18, 2020Assignee: CNH Industrial America LLCInventors: Daniel Alan Morey, Kaushal Ghorpade, Kain Knowles, Nikolay Popov, Panos Tamamidis
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Patent number: 10738678Abstract: A correction method of NOx purifying efficiency of SDPF includes: measuring a temperature change per unit time inside the SDPF, determining whether the temperature change per unit time inside the SDPF is below a first predetermined value, determining whether a difference between a maximum value and a minimum value of temperature of respective parts inside the SDPF is below a second predetermined value if the temperature change per unit time inside the SDPF is below the first predetermined value, determining whether a temperature inside the SDPF is in a low temperature region if the difference between the maximum value and the minimum value of temperature of the respective parts inside the SDPF is below the second predetermined value, and performing a low temperature region correction if the temperature inside the SDPF is in the low temperature region.Type: GrantFiled: October 24, 2018Date of Patent: August 11, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, FEV EUROPE GMBHInventors: Ki Hyung Joo, Myung Jong Lee, Jin Woo Park, Arun Palaniappan Muthukaruppan, Waldemar Josef Kansy
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Patent number: 10738676Abstract: An exhaust component includes a housing defining an internal cavity and a burner positioned within the internal cavity. The burner provides a combustion chamber having an exhaust gas inlet, a fuel inlet, a combustion air inlet, and an outlet. At least one exhaust aftertreatment component is positioned within the internal cavity and is directly coupled to the outlet of the combustion chamber.Type: GrantFiled: October 23, 2018Date of Patent: August 11, 2020Assignee: Faurecia Emissions Control Technologies, USA, LLCInventor: Tony R. Parrish
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Patent number: 10738660Abstract: In some aspects, a steam turbine system includes a high-pressure turbine section; a low-pressure turbine section; a high-pressure control valve operable to provide an adjustable flow of steam into the high-pressure turbine section; a low-pressure control valve operable to provide an adjustable flow of steam into the low-pressure turbine section; a controller associated with the high-pressure control valve and the low-pressure control valve. The controller is operable to: receive measurements of three or more different operating points of the steam turbine system, the measurements of each of the three or more different operating points including a position of the high-pressure control valve, a position of the low-pressure control valve, and two of process variables of the steam turbine system; calculate coefficients of a steam performance map of the steam turbine system based on the measurements; and generate the steam performance map based on the coefficients.Type: GrantFiled: March 1, 2019Date of Patent: August 11, 2020Assignee: Woodward, Inc.Inventors: Tena K. Britt, Scott David Oceanak, Dave Rubenthaler, Aaron Russo
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Patent number: 10731533Abstract: A method for determining the temperature of an electrically heatable catalytic converter having an electric heating element that includes a heating resistor, the electrical resistance of which changes as a function of the component temperature of the electrically heatable catalytic converter. This resistance is determined from the current intensity and the voltage at the electrically heatable catalytic converter, and is used to determine the component temperature of the catalytic converter, based on a characteristic curve stored in the control unit. The energization of the heating resistor for determining the component temperature takes place in each case for only a short time in order to minimize the energy input into the heating resistor and thus avoid overheating of the heating resistor. In addition, by use of the short time interval, the aim is to minimize the energy requirements for determining the component temperature of the electrically heatable catalytic converter.Type: GrantFiled: March 29, 2019Date of Patent: August 4, 2020Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Hardy Naumann, Stefan Paukner
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Patent number: 10723964Abstract: A combustible gas from carbon black production is utilized in a gas engine by adding an oxygen-containing gas to the combustible gas, passing said mixed gas over a selective catalyst, which is active for oxidizing H2S to SO2 but substantially inactive for oxidation of CO, H2 and other hydrocarbons with less than 4 C-atoms, passing the converted gas through an SO2 removal step, and passing the cleaned gas to a gas engine or to an energy recovery boiler. This way, the tail gas from carbon black production, which is normally combusted in a CO boiler or incinerated, can be utilized to good effect.Type: GrantFiled: September 9, 2016Date of Patent: July 28, 2020Assignee: HALDOR TOPSØE A/SInventors: Niklas Bengt Jakobsson, Kurt Agerbæk Christensen
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Patent number: 10718245Abstract: An exhaust gas treatment system for an internal combustion engine includes an exhaust gas pathway configured to receive exhaust gas from the internal combustion engine, a temperature sensor configured to sense a temperature of the exhaust gas, a first injector configured to inject a first reductant into the exhaust gas pathway at a first location when the sensed temperature is below a threshold temperature, and a first treatment element positioned downstream of the first location. A second injector is configured to inject a second reductant of a different composition than the first reductant into the exhaust gas pathway at a second location downstream of the first treatment element when the sensed temperature is above the threshold temperature. The system further includes a second treatment element positioned downstream of the second location.Type: GrantFiled: June 13, 2018Date of Patent: July 21, 2020Assignee: DEERE & COMPANYInventors: Danan Dou, Shyan-Cherng Huang, Ayyappan Ponnaiyan
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Patent number: 10711679Abstract: The present invention relates to a method for restricting work produced by combustion in a combustion chamber, wherein an aftertreatment system is arranged for reduction of at least one substance resulting from the combustion, wherein the work produced by the combustion is restricted when there is a malfunction regarding reduction of the at least one substance. The method includes: performing a first evaluation regarding the reduction of the at least one substance, when the first evaluation indicates a malfunction, performing a second evaluation regarding the reduction of the at least one substance, the second evaluation being different from the first evaluation, and restricting work produced by the combustion only when a malfunction regarding reduction of the at least one substance is indicated also by the second evaluation.Type: GrantFiled: October 27, 2016Date of Patent: July 14, 2020Assignee: Scania CV ABInventor: Mikael Lundström
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Patent number: 10711993Abstract: An exhaust heat recovery device includes: a main passage through which an exhaust gas containing a corrosive component flows; a boiler which heats a heat medium using the exhaust gas; a bypass passage connected to the main passage so as to detour around the boiler; a regulation valve member which regulates a flow rate of the exhaust gas flowing into the boiler; a heat medium circuit which circulates the heat medium that is heated to be in a hot-water state by the boiler; a binary electricity generation device which recovers thermal energy from the heat medium in the heat medium circuit and generates electricity; and a valve control unit which controls an opening of the regulation valve member such that a temperature of the exhaust gas passed through the boiler is equal to or higher than a temperature of an acid dew-point of the corrosive component in the exhaust gas.Type: GrantFiled: January 25, 2017Date of Patent: July 14, 2020Assignee: Kobe Steel, Ltd.Inventor: Kazuo Takahashi
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Patent number: 10704439Abstract: An exhaust gas purification apparatus for an internal combustion engine includes: a controller comprising at least one processor is configured to carry out rich spike; wherein the controller carries out supply control to supply a reducing agent to a post-stage catalyst, wherein in cases where a temperature of an NSR catalyst becomes less than a predetermined determination temperature in at least a part of a determination period of time, the controller carries out the supply control according to the execution of current rich spike; wherein the controller controls such that in cases where the storage amount of NOx is the same, an amount of supply of the reducing agent in the supply control is made larger as a period of time in which the temperature of the NSR catalyst becomes less than the predetermined determination temperature in the determination period of time becomes longer.Type: GrantFiled: December 3, 2018Date of Patent: July 7, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daichi Imai, Hiroshi Kobayashi
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Patent number: 10704493Abstract: A device for compressing a gaseous fluid includes a first chamber thermally coupled with a hot source, a second chamber thermally coupled with a cold source, a movable piston moved by a rod, and a regenerating exchanger establishing fluid communication between the first and second chambers. The rod is arranged in a cylindrical socket and guided in axial translation by a linear guiding system such as to guide the piston without contact relative to the sleeve. A sealing ring attached to the cylindrical socket surrounds the rod with a very low radial clearance, in order to limit the passage of the gaseous fluid along the mobile rod. Also disclosed is an integral cold casing having machined boreholes, a thermal screen in the hot casing, and a self-driving system with a resilient return means.Type: GrantFiled: July 18, 2018Date of Patent: July 7, 2020Assignee: BOOSTHEATInventors: Jean-Marc Joffroy, Martin Bidar, Luc Dando
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Patent number: 10697341Abstract: A reducing agent dosing valve (24) on an exhaust system (12) of an internal combustion engine (10), having a pump (32) which generates an injection pressure (p_24), and having a control unit (14) which actuates the reducing agent dosing valve (24) with actuation signals is presented, wherein the actuation signals are formed in a manner dependent on a reducing agent pressure (p_36) prevailing at the pump side. The method is distinguished by the fact that the actuation signals are formed additionally in a manner dependent on at least one estimated value for an influence of a drop in the injection pressure (p_24), which occurs upon the opening of the reducing agent dosing valve (24), on the injected reducing agent quantity.Type: GrantFiled: April 9, 2018Date of Patent: June 30, 2020Assignee: Robert Bosch GmbHInventors: Alexander Bahler, Edna Boos
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Patent number: 10697345Abstract: A method to determine the actual quantity of metal powders or ashes trapped in a particulate filter, which involves determining an estimated value of the quantity of metal powders trapped in the particulate filter based on an estimation model; determining a measured value of the quantity of metal powders trapped in the particulate filter; updating the estimated value of the quantity of metal powders trapped in the particulate filter as a function of the measured value; and determining the actual quantity of metal powders or ashes trapped in a particulate filter as a function of the update of the estimated value of the quantity of metal powders trapped in the particulate filter.Type: GrantFiled: January 31, 2019Date of Patent: June 30, 2020Assignee: MAGNETI MARELLI S.p.A.Inventors: Umberto Di Martino, Lorenzo Francia, Daniele Benassi
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Patent number: 10697342Abstract: An aftertreatment system includes: a selective catalytic reduction system including at least one catalyst for decomposing constituents of an exhaust gas produced by an engine, the exhaust gas having a pressure pulsation frequency; an exhaust conduit fluidly coupled to the selective catalytic reduction system and structured to deliver the exhaust gas to the selective catalytic reduction system from the engine; at least one mixer positioned in the exhaust conduit; and a reductant insertion assembly fluidly coupled to the exhaust conduit and structured to insert a reductant into the exhaust conduit upstream of the at least one mixer. The at least one mixer is structured to have a natural frequency matching the pressure pulsation frequency so as to cause resonant vibration in the at least one mixer, the resonant vibration causing reductant deposits to be removed from the at least one mixer.Type: GrantFiled: October 23, 2018Date of Patent: June 30, 2020Assignee: Cummins Emission Solutions Inc.Inventors: Atul S. Abhyankar, Ronald Hale
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Patent number: 10683785Abstract: In an exhaust gas purification apparatus for an internal combustion engine, the apparatus comprising NOx storage reduction catalyst, and a controller comprising at least one processor is configured to carry out rich spike, wherein in cases where the storage amount of NOx is the same, in a period of time from the completion of the execution of the last rich spike to the start of the execution of the current rich spike, the controller makes a period of execution of the current rich spike longer, and/or a degree of richness of a rich air fuel ratio achieved by the execution of the current rich spike larger, in the case where a period of time in which a temperature of the NOx storage reduction catalyst becomes equal to or higher than a predetermined determination temperature is long than in the case where it is short.Type: GrantFiled: December 5, 2018Date of Patent: June 16, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daichi Imai, Hiroshi Kobayashi
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Patent number: 10677125Abstract: An exhaust gas purification apparatus for an internal combustion engine includes the adsorbent, the catalyst and the heat generating element, wherein in cases where the residual capacity of the battery is smaller than a first predetermined value required for raising the temperature of the catalyst to an activation temperature thereof, and in cases where the residual capacity of the battery is larger than a second predetermined value which is smaller than the first predetermined value and which is required for raising the temperature of the adsorbent to a predetermined temperature at which the adsorbent exhibits adsorption performance required at the time of starting of the internal combustion engine, an amount of electric power to be supplied to the heat generating element from the battery is adjusted such that the temperature of the adsorbent becomes the predetermined temperature.Type: GrantFiled: December 5, 2018Date of Patent: June 9, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryohei Ono, Masaaki Sato, Katsuhiro Ito, Akira Mikami, Kazuhiro Umemoto, Daichi Imai
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Patent number: 10655520Abstract: An exhaust system for an internal combustion engine, especially in a vehicle, comprising at least one first catalytic converter unit (18) with at least one catalytic converter device (24), through which internal combustion engine exhaust gas can flow and a fuel-operated heater (36). The at least one first catalytic converter unit (18) comprises a heat exchanger volume (50) through which heater exhaust gas leaving the heater (36) can flow.Type: GrantFiled: August 9, 2018Date of Patent: May 19, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Jan Krüger, Günter Eberspach
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Patent number: 10655525Abstract: An emission control device for an internal combustion engine is configured to perform a particulate matter trap function of trapping, with a particulate filter, particulate matter contained in exhaust gas which flows in an exhaust passage of the internal combustion engine. The emission control device includes a controller. The controller is configured to calculate a particulate matter accumulation amount, which is a total amount of particulate matter trapped by the particulate filter based on an operation condition of the internal combustion engine. The controller is configured to stop calculating the particulate matter accumulation amount when the particulate matter trap function is not functioning.Type: GrantFiled: October 2, 2018Date of Patent: May 19, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takashi Nakamura, Noriyasu Kobashi
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Patent number: 10648394Abstract: An exhaust component assembly includes a housing having at least one mount area configured to be attached to another exhaust component. A primary heat shield is attached to the housing and includes at least one open area at the mount area. A secondary heat shield positioned adjacent to the primary heat shield to at least partially cover the mount area. A method of assembling the primary and secondary heat shields to the housing of the exhaust component assembly is also disclosed.Type: GrantFiled: March 23, 2017Date of Patent: May 12, 2020Assignee: Faurecia Emissions Control Technologies, USA, LLCInventors: Robin Willats, Jerome Brian Hornback, Jeffery Warren Prairie, John G. Rohde, Thibaut Contremoulins, Maria Saur