Having Heater, Igniter, Or Fuel Supply For Reactor Patents (Class 60/303)
  • Patent number: 11913369
    Abstract: This application relates to a mixer and an exhaust system. Wherein, the mixer comprises a pipe, comprising a side wall that comprises an opening; a doser mounting base provided on the opening of the side wall of the pipe, connecting the pipe through the opening, defining a first space, and comprising an injection inlet; and an attachment, comprising a chamber portion and a deflector portion, wherein the chamber portion comprises a chamber portion inlet corresponding to the injection inlet, and a chamber portion outlet corresponding to the opening of the side wall of the pipe; and the deflector portion extends from a side wall of the chamber portion and makes the pipe, the side wall of the chamber portion and the chamber portion inlet fluidly connected, and the attachment constitutes a swirling structure that forms a swirling movement of exhaust at the chamber portion inlet.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: February 27, 2024
    Assignee: Faurecia Emission Control Technologies (Shanghai) Co., Ltd
    Inventors: Fabien Sudries, Vikas Jukanti, Vijaykumar Madegowda, Haneesh Penubolu, Rajeev Naik
  • Patent number: 11905900
    Abstract: A motor system includes an engine having one or more cylinders, an electronic control unit, an exhaust treatment system in fluid connection with and downstream of the one or more cylinders. The exhaust treatment system includes an exhaust line, a combustion zone downstream, a combustion ignition source in the combustion zone, a catalyst downstream of an in thermal communication with the combustion zone. A method of heating a catalyst during an engine cold start and a method of initiating regular operating conditions of an engine having one or more cylinders are also described.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: February 20, 2024
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Andrew Baur, Xin Yu, Anqi Zhang, David Cleary
  • Patent number: 11905870
    Abstract: Catalytic elements are usable in waste gas control processes. The catalytic elements include an open inlet into a hollow body and a closed end thereby forcing fluid or gas through a porous catalytic layer of the element. The catalytic layer includes inorganic fibers and a catalyst disposed on or incorporated into the fibers. The catalytic element also includes an inductive heater disposed therein and a conductive layer about the inductive heater to transfer heat to the catalyst and fluid or gas.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: February 20, 2024
    Assignee: UNIFRAX I LLC
    Inventors: James D. Grace, Mark E. Beauharnois, Adam M. Nohel, Michael Robert Carson, Jr., Dakota Piehler, Donald John Daniels, IV, Maurice Y. Belisle
  • Patent number: 11898482
    Abstract: A method for the diagnosis of an air supply circuit supplying air to a burner of an exhaust gas after-treatment system for an exhaust system of an internal combustion engine, wherein the air supply circuit is provided with a pumping device housed along a first duct adjusted by a shut-off valve. The method entails housing a first pressure sensor along the first duct interposed between the pumping device and the burner; housing a second pressure sensor along a second duct out of the burner; acquiring the pressure signals detected by said first and second pressure sensors; and diagnosing faults and/or malfunctions in the air supply circuit depending on the pressure signals detected by said first and second pressure sensors.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: February 13, 2024
    Assignee: MARELLI EUROPE S.P.A.
    Inventors: Gaetano Di Vieste, Luigi De Luca, Fabio Sensi, Giovanni Prodi
  • Patent number: 11879371
    Abstract: A heating conductor for an exhaust gas heating arrangement for an exhaust gas system for an internal combustion engine includes a plurality of heating conductor sections. At least one throughflow opening, preferably a plurality of throughflow openings through which exhaust gas can flow, is or are provided in at least one heating conductor section, preferably in a plurality of heating conductor sections or in each heating conductor section.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: January 23, 2024
    Assignee: Purem GmbH
    Inventors: Fatih Uysal, Enver Kurpejovic, Klaus Tüber, Sandra Höckel
  • Patent number: 11852064
    Abstract: An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement and a heating conductor arrangement. The heating conductor arrangement is carried on the carrier arrangement and exhaust gas can flow therethrough in a main exhaust gas flow direction. The heating conductor arrangement includes at least two heating conductors arranged following one another in the main exhaust gas flow direction. The carrier arrangement includes at least one carrier element having a fixing region lying radially on the outside relative to an exhaust gas heater center axis and is configured for fixing to an exhaust gas guidance housing. The fixing region at least partially does not radially overlap a radially outer lying conductor region of at least one heating conductor of the heating conductor arrangement in at least one, preferably several circumferential regions.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: December 26, 2023
    Assignee: Purem GmbH
    Inventors: Fatih Uysal, Sandra Hoeckel, Dietmar Kuschel
  • Patent number: 11840951
    Abstract: An exhaust system for a vehicle having an internal combustion engine includes an exhaust pipe having a central axis and configured to receive an exhaust gas flow from the engine, a catalytic converter disposed within the exhaust pipe, and an exhaust gas burner assembly having a burner unit configured to generate and supply a heated burner flow to a supply pipe. An outlet end of the supply pipe is disposed within the exhaust pipe and extends substantially parallel to the exhaust pipe central axis such that the exhaust gas flows around the supply pipe outlet end. A plurality of mixing apertures are formed in the supply pipe outlet end and configured to promote mixing of the heated burner flow and the exhaust gas flow to disperse heat over the catalytic converter for rapid heating thereof.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: December 12, 2023
    Assignee: FCA US LLC
    Inventor: Ronald A Reese, II
  • Patent number: 11821351
    Abstract: A method for operating an exhaust gas burner that is situated in an exhaust gas system downstream from an internal combustion engine of a motor vehicle during a start phase of the exhaust gas burner, in which the internal combustion engine is not fired. The method includes an incremental increasing of the air mass flow supplied to the exhaust gas burner and an incremental varying of a fuel mass flow supplied to the exhaust gas burner.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: November 21, 2023
    Assignee: ROBERT BOSCH GMBH
    Inventors: Christian Disch, Dietmar Uhlenbrock, Max Braunbeck, William Krein
  • Patent number: 11808193
    Abstract: A Diesel Emissions Fluid (DEF) Thawing arrangement and method is provided for use with a vehicle having an engine, an Engine Control Module (ECM), an exhaust system, and a Selective Catalyst Reduction (SCR) catalytic device. A DEF injection system is connected to the exhaust system and to the ECM. A DEF tank is connected to the DEF injection system, and is provided with a Urea Quality Sensor (UQS). A coolant loop is connected to the engine and has a Coolant Control Valve (CCV) connected to a control module, and a coolant to DEF heat exchanger. A DEF temperature sensor and an ambient temperature sensor are connected to the control module. The control module is configured to trigger a CCV stuck open fault when the DEF tank temperature exceeds the ambient temperature by a threshold amount for a period of time.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: November 7, 2023
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Navtej Singh, Paul Boon Charintranond, Madelyn Rae Hutton
  • Patent number: 11808195
    Abstract: Methods and systems for improving NOx conversion efficiency of a selective catalytic reduction catalyst are described. In one example, an amount of NH3 stored in a SCR is adjusted after stopping an engine so that a desired amount of NH3 may be stored within the SCR when the engine is restarted.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: November 7, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Jason Martz, Paul Joseph Tennison, Eric Matthew Kurtz, Michiel J. Van Nieuwstadt
  • Patent number: 11801465
    Abstract: The present disclosure is directed towards a filter arrangement for a reductant supply system of a selective catalytic reduction system. The reductant supply system comprises a tank and a suction tube mounted at least partially in the tank for receiving reductant liquid from the tank. The filter arrangement comprises a restraining body, a filter at least partially forming a filter chamber, a filter outlet from the filter chamber formed through the restraining body and/or filter and a filter mount mounted to the restraining body and/or filter. The restraining body extends radially outwardly from the filter mount and is configured to restrain the filter such that, under the effect of buoyancy in the tank in use, gas in the filter chamber is directed towards the filter outlet.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: October 31, 2023
    Assignee: Perkins Engines Company Limited
    Inventors: Siddharth Gharpure, Guy Williamson
  • Patent number: 11795852
    Abstract: A heating device for an exhaust system of an internal combustion engine and having: a tubular body, which contains a combustion chamber and is delimited by a first base wall and by a second base wall; a fuel injector, which is mounted through the first base wall; at least one inlet opening, which can be connected to a fan so as to receive an air flow; a feeding channel, which receives air from the inlet opening, surrounds an end portion of the fuel injector and ends with a nozzle arranged around an injection point of the fuel injector; a spark plug, which is mounted through a side wall of the tubular body; and a flame holder body, which is at least partially arranged inside the feeding channel in the area of the nozzle, is coaxial to the feeding channel and to the fuel injector and is in front of the injection point of the fuel injector.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: October 24, 2023
    Assignee: MARELLI EUROPE S.P.A.
    Inventors: Marco La Sana, Emanuele Milani, Mauro Brignone, Luigi Lubrano, Alessandro Mantovanelli
  • Patent number: 11795850
    Abstract: An exhaust gas treatment device for arranging in an exhaust gas section of a motor vehicle that includes a heating disk which is assigned to an exhaust gas aftertreatment component. The heating disk is configured by way of a flat heating element and a holder which is coupled to the former. The holder extends over the cross-sectional area of the heating element, and the holder itself is of disk-shaped configuration. The inner face of the heating disk is configured by way of arcuate spokes which are coupled irregularly to one another.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: October 24, 2023
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Elmar Grussmann, Ulrich Rusche
  • Patent number: 11781466
    Abstract: An exhaust system of an internal combustion engine of a motor vehicle includes a particulate filter where particles are filterable out from the exhaust gas by the particulate filter. A selective catalytic reduction (SCR) catalytic converter through which the exhaust gas from the internal combustion engine is flowable for denitrifying the exhaust gas from the internal combustion engine is disposed downstream of the particulate filter. The exhaust gas of the internal combustion engine is heatable by a combustor at a point disposed upstream of the SCR catalytic converter and downstream of the particulate filter where the combustor provides an exhaust gas of the combustor. Particles are filterable out from the exhaust gas of the combustor by a filter element.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: October 10, 2023
    Assignee: Daimler Truck AG
    Inventors: Johannes Bleckmann, Alexander Massner, Michael Stiller
  • Patent number: 11767781
    Abstract: An exhaust treatment system includes an exhaust line, a series of emission treatment units, and an electronic control unit. The series of emission treatment units includes a catalytic unit, a particulate filter unit, an oxidation catalytic unit, a hydrogen injection unit, and a Lean NOx Trap (LNT) for trapping select emissions. A method of operating an exhaust treatment system includes introducing a fuel to a combustion engine of a motor vehicle, directing emissions from the combustion engine to an exhaust line, and passing the emissions in the exhaust line through a series of emission treatment units on the exhaust line. The method further includes injecting hydrogen into the exhaust line via a hydrogen injection unit, where an amount of hydrogen gas injected from a hydrogen inlet line reduces the trapped emissions in the LNT to an inert gas.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: September 26, 2023
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Emmanuel Laigle, Christophe Chaillou, Caroline Norsic, André Nicolle
  • Patent number: 11761362
    Abstract: Embodiments described herein methods can be used in particulate filter regeneration, such as particulate filters used for filtering the exhaust of an engine, e.g., a diesel engine. Systems herein can be configured to dispense combustion gas(es) into housing were a particulate filter is contained and to ignite the combustion gases. Methods for conducting a safety verification process of such systems are disclosed, as well as methods for regenerating the filters. Still other embodiments are described.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: September 19, 2023
    Assignee: JTSMCDP, LLC
    Inventors: Mark Colaw, John Stiles, David Philips
  • Patent number: 11746684
    Abstract: An exhaust aftertreatment arrangement for converting NOx emissions. The exhaust aftertreatment arrangement includes a fluid channel for providing a fluid pathway for the exhaust gases, a selective catalyst reduction, SCR, catalyst, arranged in or downstream the fluid channel, an injector configured to inject a liquid reductant for providing ammonia to the SCR catalyst, the injector being arranged upstream of the SCR catalyst, a heating arrangement for heating the injected reductant, the heating arrangement being arranged upstream of the SCR catalyst and comprising an electrical heating element and at least one evaporation member configured to be heated by the heating element. The evaporation member is arranged in the fluid channel such that at least a portion of the injected liquid reductant comes into contact with the evaporation member when injected.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: September 5, 2023
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Gert-Ove Wahlström
  • Patent number: 11739701
    Abstract: A method to determine the mass of air trapped in each cylinder of an internal combustion engine, which comprises determining, based on a model using measured and/or estimated physical quantities, a value for a first group of reference quantities; determining, based on the model, the actual inner volume of each cylinder as a function of the speed of rotation of the internal combustion engine and of the closing delay angle of the intake valve; and calculating the mass of air trapped in each cylinder as a function of the first group of reference quantities and of the actual inner volume of each cylinder.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: August 29, 2023
    Assignee: MARELLI EUROPE S.p.A.
    Inventor: Marco Panciroli
  • Patent number: 11725559
    Abstract: Disclosed is a turbocharger for an internal combustion engine comprising a turbine having a turbine housing and a diffusor. The turbine housing comprises an exhaust gas outlet volume, and the diffusor is arranged in this volume. A housing orifice and a diffusor orifice are arranged through each of the turbine housing and diffusor respectively and are mutually aligned to provide an opening into the exhaust gas outlet volume. The turbocharger further comprises a bushing arranged within the housing orifice and extending towards the diffusor orifice and ending at a first end in association with the diffusor orifice. The first end of bushing has an internal diameter that is greater than or equal to a diameter of the diffusor orifice.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: August 15, 2023
    Assignee: Scania CV AB
    Inventors: Anders Gawell, Viktor Olsson, Magnus Lindgren
  • Patent number: 11725560
    Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 15, 2023
    Assignee: PACCAR INC
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
  • Patent number: 11719149
    Abstract: The invention proposes a method for operating a metering system (32) with a plurality of metering valves (34, 35) for an SCR catalyst system, in which opening times for the injection of reducing agent are calculated for the metering valves (34, 35) based on a metering amount requirement. In the calculations of the opening times, a metering-valve-specific adaptation factor is used, w herein a deviation (?p) of a system pressure (pist) in the metering system (32) from a target pressure (psoll) and a weighting factor are used for calculation of the metering-valve-specific adaptation factor. The weighting factor depends on a proportion (r34, r35) of the required metering amount ((formula (I)), (formula (II)) of the respective metering valve (34,35) in relation to a total metering amount ((formula (I)), (formula (II)) of all metering valves (34, 35).
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: August 8, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Johannes Georg Mueller, Roland Waschler
  • Patent number: 11686233
    Abstract: A method to control an internal combustion engine having an exhaust duct and an exhaust gas after-treatment system comprising at least one catalytic converter arranged along the exhaust duct; an oxygen sensor housed along the exhaust duct and arranged upstream of said at least one catalytic converter; and a burner suited to introduce the exhaust gases into the exhaust duct upstream of the oxygen sensor the method provides the steps of identifying the operation phases in which the internal combustion engine is turned off and the burner is turned on so that the oxygen sensor is exclusively hit by the exhaust gases produced by the burner; acquiring the signal generated by the oxygen sensor; and using the signal generated by the oxygen sensor to determine the objective fuel flow rate and the objective air flow rate to be fed to the burner.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: June 27, 2023
    Assignee: MARELLI EUROPE S.P.A.
    Inventors: Matteo De Cesare, Enrico Brugnoni, Marco Panciroli, Federico Stola
  • Patent number: 11674425
    Abstract: A reductant injecting device includes: a honeycomb structure comprising: a pillar shaped honeycomb structure portion having a partition wall that defines a plurality of cells each extending from a fluid inflow end face to a fluid outflow end face; and at least one pair of electrode portions arranged on a side surface of the honeycomb structure portion; an inner cylinder being configured to house the honeycomb structure; a urea sprayer arranged at one end of the inner cylinder; and an outer cylinder arranged on an outer peripheral side of the inner cylinder, the outer cylinder being spaced apart from the inner cylinder. A flow path through which the carrier gas passes is formed between the inner cylinder and the outer cylinder.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: June 13, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Katsumi Saiki, Yukinari Shibagaki
  • Patent number: 11674427
    Abstract: A heating device for an exhaust system of an internal combustion engine and having: a tubular body, where a combustion chamber is obtained on the inside; a fuel injector, which injects fuel into the combustion chamber; at least one inlet opening, which can be connected to a fan so as to receive an air flow, which is directed to the combustion chamber and gets mixed with the fuel; a feeding channel, which receives air from the inlet opening, surrounds an end portion of the fuel injector and ends with a nozzle, which is arranged around an injection point of the fuel injector; and a spark plug, which is mounted through a side wall of the tubular body so as to trigger the combustion of a mixture of air and fuel. The fuel injector is configured to spray at least 80% of the fuel against an inner surface of the feeding channel.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: June 13, 2023
    Assignee: MARELLI EUROPE S.P.A.
    Inventors: Mauro Brignone, Marco La Sana, Emanuele Milani, Stefano Rivella
  • Patent number: 11649754
    Abstract: A method to control a burner for an exhaust system of an internal combustion engine with an exhaust gas after-treatment system including at least one catalytic converter. The method provides the steps of calculating the thermal power needed to reach the nominal operating temperature of the at least one catalytic converter and determining an actual number of revolutions with which to operate a fresh air pumping device based on the sum of a nominal number of revolutions, a closed-loop contribution of the number of revolutions with which to operate the fresh air pumping device, and a further contribution of the number of revolutions with which to operate the fresh air pumping device in order to ensure optimal thermal power exiting the burner.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: May 16, 2023
    Assignee: MARELLI EUROPE S.P.A.
    Inventors: Matteo De Cesare, Enrico Brugnoni, Marco Panciroli, Federico Stola
  • Patent number: 11639680
    Abstract: A urea water supply system includes: a first supply valve for supplying urea water; a second supply valve for supplying urea water; a supply passage for connecting a urea water tank and the first and the second supply valves; and an electronic control unit (ECU). The supply passage branches to have a first supply passage extending from a branch point to the first supply valve and a second supply passage extending from the branch point to the second supply valve, and a volume of the first supply passage is greater than a volume of the second supply passage. The ECU opens the first supply valve while keeping the second supply valve closed, for starting filling of the supply passage with urea water, and thereafter determines completion of filling of urea water into the first supply passage.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: May 2, 2023
    Assignee: DENSO CORPORATION
    Inventors: Tomoaki Kamei, Tomohiro Ueno, Eiji Takemoto, Sumitaka Ikeda
  • Patent number: 11591944
    Abstract: A controller for removing deposits in a vehicle is disclosed. The controller includes at least one processor and a memory storing instructions therein that, when executed by the at least one processor, cause the at least one processor to: determine an amount of deposits accumulated in the vehicle based on an amount of time; determine a combustion target for the vehicle in response to determining that the amount of deposits exceeds a deposit threshold; and modulate a fluid flow of the vehicle based on the determined combustion target.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: February 28, 2023
    Assignee: Cummins Inc.
    Inventors: John L. Hoehne, Paul Daniel Borisuk, Boopathi Singalandapuram Mahadevan, Joshua A. Lantz, Jeffrey W. Lewis, Snita Navnith Menon
  • Patent number: 11585257
    Abstract: In a turbocharged internal combustion engine (ICE) system, a catalytic treatment device receives exhaust gases from the ICE after they have passed through the turbocharger turbine. The system includes a secondary air pump (SAP) for injecting pressurized air into the exhaust gases ahead of the catalytic treatment device. The SAP is a single-stage centrifugal compressor that includes an air recirculation passage for causing a first portion of the air pressurized by the SAP to be continuously recirculated back to the inlet of the SAP, which is effective for heating the air in the volute of the SAP. A second portion of the pressurized air, having thereby been heated, is injected into the exhaust gases proceeding toward the catalytic treatment device.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: February 21, 2023
    Assignee: Garrett Transportation I Inc.
    Inventors: Milan Nejedly, Pavel Krejci, Daniel Turecek, Vit Houst
  • Patent number: 11578632
    Abstract: An exhaust gas heater for an exhaust gas system of a combustion engine includes a carrier and at least one heating conductor through which a current flows. The heating conductor is mounted on the carrier. The heating conductor is provided via separation from a metal flat material blank. A method of making an exhaust gas heater includes a step of separating the heating conductor from the metal flat material blank.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: February 14, 2023
    Assignee: Purem GmbH
    Inventors: Sandra Hoeckel, Fatih Uysal
  • Patent number: 11566553
    Abstract: A hydro-active scrubber and reactor (HSR) system and apparatus is disclosed that includes a main body, an inlet configured to receive a first fluid medium comprised of pollutant particles, and a nozzle configured to dispense a second fluid medium within the main body. In addition, the HSR system and apparatus may also include a cylindrical body or hydro-vortex generator within the main body having a plurality of horizontally positioned rods projecting therefrom, wherein the cylindrical body further comprises a plurality of openings. Further, the HSR system and apparatus can include a motor configured to rotate the cylindrical body thereby directing the first and second fluid mediums through the cylindrical body. In addition, a first area within the main body can receive the pollutant particles from the first fluid medium, and a first outlet within the main body can be configured to direct the received pollutant particles out of the main body.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 31, 2023
    Inventors: Nathan Hastings, Stephan Hastings
  • Patent number: 11566547
    Abstract: An exhaust muffler has an outer cylinder into which an exhaust gas from an engine is introduced and a muffling member made of a foamed ceramic material. The outer cylinder has an inner cylinder through which the exhaust gas passes, a part of the muffling member is supported by an outer wall of the inner cylinder via a holding member. The inner cylinder includes, in an area where the inner cylinder overlaps with the muffling member with respect to axial direction of the inner cylinder, a porous wall portion formed with communication holes communicating an inside and an outside of the inner cylinder. The holding member is arranged at a position where it does not overlap with a part of the porous wall portion, so that muffling effect is enhanced, and the muffling member having a low resistance to impact forces can be supported stably by the inner cylinder.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: January 31, 2023
    Assignee: Honda Motor Co., Ltd.
    Inventors: Junya Sato, Ryuta Niimura, Junichiro Suzuki
  • Patent number: 11566549
    Abstract: An exhaust gas heating assembly for an exhaust gas system of a combustion engine includes a heating unit housing which accommodates a flow of exhaust gas. A plurality of heating units are disposed in the heating unit housing and are elongate in the direction of a heating unit longitudinal axis (H). Each heating unit has first and second heating unit longitudinal end regions. The heating units with the first heating unit longitudinal end regions and the second heating unit longitudinal end regions are supported in relation to the heating unit housing via a support structure. At least one heating unit by way of the first heating unit longitudinal end region thereof or/and the second heating unit longitudinal end region thereof is supported on the support structure so as to be movable in the direction of the longitudinal axis (H).
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: January 31, 2023
    Assignee: Purem GmbH
    Inventors: Thomas Tauschek, Jürgen Zavadil, Markus Tüch, Ralf Riekers, Alexej Schacht
  • Patent number: 11555432
    Abstract: A device for the post-treatment of the exhaust gas of an internal combustion engine comprises a conduit defining a passage for the flow of the exhaust gas and, from upstream to downstream of the conduit, an injector arranged to inject a reducing agent into the flow passage, and a purifying member. The injector is heated to heat the reducing agent prior to injection. The device further comprises a heating element arranged between the injector and the purifying member.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: January 17, 2023
    Inventors: Sonia Capirchia, Marion Gonzalez, Vincent Lebourgeois
  • Patent number: 11535238
    Abstract: An aftertreatment device of a vehicle exhaust system includes an aftertreatment device. The aftertreatment device includes a body defining an inlet cone, an outlet cone, and a cavity therebetween. A heating element is disposed in the cavity. A catalyst is disposed in the cavity downstream of the heating element. A recirculation loop has a conduit with a first end connected to the outlet cone and a second end connected to the inlet cone. The recirculation loop further has an air-circulation device configured to recirculate heated air from the outlet cone to the inlet cone.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: December 27, 2022
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 11519313
    Abstract: Methods and systems are provided for expediting exhaust catalyst light-off prior to an anticipated engine cold-start event. In one example, a method may include, in anticipation of an engine cold-start, preemptively operating an electric booster and routing compressed air to the catalyst to increase a temperature of the exhaust catalyst while maintaining the engine inactive.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: December 6, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Jason Brian Martz, Eric Matthew Kurtz
  • Patent number: 11506099
    Abstract: An exhaust treatment assembly for receiving exhaust gas from a motor vehicle includes a mix pipe, a sheath, and a heater. The mix pipe at least partially defines a passage adapted to receive the exhaust gas and a chemical reductant. The sheath includes a first end fluidly sealed to the mix pipe. At least a portion of the sheath is radially spaced apart from the mix pipe to at least partially define a gap. The heater is disposed in the gap. The heater is adapted to heat a reductant impingement surface.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: November 22, 2022
    Assignees: Tenneco Automotive Operating Company Inc., Tenneco GmbH
    Inventors: Thomas M. Harris, Eric A. Hein
  • Patent number: 11466604
    Abstract: A system includes an exhaust aftertreatment system in exhaust gas receiving communication with an engine including a plurality of cylinders where the engine is structured to operate according to low load conditions and where a controller is structured to determine that at least one diesel emissions fluid (DEF) doser is frozen based on at least one of an ambient air temperature and a DEF source temperature. The controller is structured to operate the engine according to a skip-fire mode in response to a DEF flag indicating that the at least one DEF doser is frozen. The skip-fire mode comprises firing a portion of the plurality of cylinders that is less than a total amount of cylinders of the plurality of cylinders. The controller is structured to discontinue the skip-fire mode in response to determining that the at least one DEF doser is likely thawed.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: October 11, 2022
    Assignee: Cummins Inc.
    Inventors: Ankit Raghunath Lad, Joshua Alan Lantz, Vaibhav J. Lawand, Nicholas R. Lewis, Ian W. McGiffen, Arulkumaran Muthukumarasamy
  • Patent number: 11459926
    Abstract: A system, apparatus, and method for oxidizing methane in the exhaust gas from a lean-burn combustion gas engine in which a syngas stream comprising H2 and CO, or a combustible hydrocarbon with a light-off temperature at or below the temperature of the engine exhaust temperature, is added to and combined with the engine exhaust stream and passed through an oxidation catalyst whereupon the combustible gas oxidizes and increases the operating temperature of a platinum group oxidation catalyst sufficiently to exceed the light-off temperature of the platinum group catalyst for oxidizing methane emissions contained in the engine exhaust stream.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: October 4, 2022
    Assignee: MIRATECH GROUP, LLC
    Inventors: Tracy D. Staller, Steven G. DeCicco
  • Patent number: 11454178
    Abstract: The present invention relates to a method for controlling an internal combustion engine arrangement, which method comprises the steps of controlling an outlet valve to be arranged in an at least partial open position during a portion of an intake stroke; and providing a reducing agent to at least a portion of the flow of combustion gas exhausted from the combustion cylinder during an exhaust stroke.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: September 27, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Arne Andersson, Lennart Andersson
  • Patent number: 11447020
    Abstract: A lift device comprises a base, a linear actuator, and a rechargeable battery system. The base has a plurality of wheels. The linear actuator is configured to selectively move a work platform configured to support a load between a raised position and a lowered position. The linear actuator has an electric motor. The rechargeable battery system includes a battery, a heating system, and a battery charger. The battery is configured to power the electric motor of the linear actuator. The heating system is configured to selectively provide heat to the battery. The battery charger is configured to selectively charge the battery and to selectively charge the heating system. The heating system is configured to receive power from the battery through a battery power connection and to receive power from the battery charger through a battery charger power connection.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: September 20, 2022
    Assignee: Oshkosh Corporation
    Inventor: David Lombardo
  • Patent number: 11446599
    Abstract: A particulate filter 23 is configured by being provided with, arranged side by side, a plurality of honeycomb-shaped segments 29, 30, 31 having a plurality of cells 32. The density of cells in the segments 30, 31 disposed in the outer circumference part is set to be lower than the density of cells in the segments 29 disposed in the center part. In addition, the segments 30, 31 disposed in the outer circumference part are configured so that the density of the cells 32 becomes lower as the area of the end face becomes smaller.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: September 20, 2022
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Yukihiro Kawashima
  • Patent number: 11441471
    Abstract: A controller controls energization of a filter and a fuel addition valve in an exhaust purifying apparatus. The controller executes a filter regeneration process when an electrical resistance value between two electrodes fixed to an outer surface of the filter is less than a predetermined regeneration determination value. The controller executes a soot burning process when the electrical resistance value is greater than or equal to the regeneration determination value and less than a soot burning determination value, which is set in advance to be larger than the regeneration determination value.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: September 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takahiro Sadamitsu
  • Patent number: 11441470
    Abstract: An internal combustion engine exhaust system mixer device includes a bottom element (12) includes a downstream rear side (22) and a front side (44). The bottom element has a reactant introduction opening (31), open to a reactant receiving volume (46), and expands therefrom radially from the reactant introduction opening toward the front side. Exhaust gas passage ducts (58), arranged following one another in the circumferential direction about the opening axis (A), open to the reactant receiving volume. A swirl generation element (20) is connected to the bottom element and encloses the opening axis. A mixing volume (64) adjoins the reactant receiving volume in the direction of the opening axis and is formed in the swirl generation element. A plurality of exhaust gas passage openings (66), following one another in the circumferential direction, about the opening axis are provided in the swirl generation element.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: September 13, 2022
    Assignee: Purem GmbH
    Inventors: Peter Kast, Michael Dentler, Vincent Eder, Mathias Rothfuss
  • Patent number: 11415035
    Abstract: A diesel engine high pressure SCR ventilation and voltage stabilisation system, comprising an SCR reactor (10), an air intake pipeline (20) and an exhaust pipeline (30) respectively connected to an air inlet and an exhaust outlet of the SCR reactor, a pressure difference sensing apparatus (40), and a control apparatus, a first control valve (21) being arranged on the air intake pipeline (20) and a second control valve (31) being arranged on the exhaust pipeline (30), and the control apparatus being connected to the pressure difference sensing apparatus (40), the first control valve (21), and the second control valve (31). The control apparatus controls the first and second control valves such that the pressure difference between the SCR reactor and the exhaust side of the diesel engine remains in a predetermined pressure difference range. The present system implements rapid ventilation and ensures precise control and stabilisation of pressure difference.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: August 16, 2022
    Assignee: SHANGHAI MARINE DIESEL ENGINE RESEARCH INSTITUTE
    Inventors: Zhigang Wang, Xiangli Zhu, Xiaobo Li, Teng Shen, Qiuyan Chen, Feixiang Shen
  • Patent number: 11408314
    Abstract: A heating apparatus for heating fluid includes a container body, a plurality of electric heater elements, and a support structure. The container body defines a perimeter of a flow path for a fluid flowing through the container body. The plurality heater elements are exposed to the flow path. Each heater element includes a resistance element, sheath, and insulating material disposed about the resistance element between the resistance element and the sheath. The support structure includes a plurality of support sheets. The heater elements extend transversely through each support sheet and contact each support sheet to restrict movement of the heater elements and support the heater elements in the container body. The support sheets contact the sheaths of the electric heater elements to increase heat transfer to the fluid flowing through the flow path. Opposite ends of each support sheet are connected to the container body.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: August 9, 2022
    Assignee: WATLOW ELECTRIC MANUFACTURING COMPANY
    Inventors: Mark D. Everly, Jeremy Ohse, David P. Culbertson, Richard T. Williams, George Jambor, Jacob Wilson
  • Patent number: 11391192
    Abstract: An exhaust control system includes: a temperature control module configured to, in response to a shutdown of an engine, turn on an air pump that, when on, pumps air into an exhaust system of the engine upstream of a selective catalytic reduction (SCR) catalyst; a target module configured to, while the air pump is on and the engine is off in response to the shutdown, selectively determine a target rate of injection of a diesel exhaust fluid (DEF) by a DEF injector based on increasing a present amount of ammonia stored by the SCR catalyst to at least a predetermined amount of ammonia; and a DEF control module configured to, while the air pump is on and the engine is off in response to the shutdown, control injection of the DEF by the DEF injector upstream of the SCR catalyst based on the target rate.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: July 19, 2022
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Thomas M. Harris, Alan C. Brockman
  • Patent number: 11319849
    Abstract: Technologies for producing an exhaust gas stream with controlled hydrocarbon species are disclosed. In some embodiments the technologies include an apparatus for producing an exhaust gas stream. The apparatus may include a burner for combusting primary fuel and produce an exhaust gas stream, and an exhaust pipe coupled to the burner to receive the exhaust gas stream. One or more supplemental fuel inlets may be coupled to the exhaust gas pipe for the addition of supplemental fuel to the exhaust gas stream. In embodiments, the speciation and total concentration of hydrocarbon compounds in the exhaust gas stream may be adjusted by controlling the relative amount of supplemental fuel added to the exhaust gas stream. Methods for producing an exhaust gas stream are also disclosed.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: May 3, 2022
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Cary A. Henry, Cynthia Chaffin Webb, Scott T. Eakle
  • Patent number: 11306634
    Abstract: The present disclosure describes an arrangement for a motor vehicle including an internal combustion engine, a heat exchanger for cooling exhaust gas present in the internal combustion engine, and an exhaust system for discharging the exhaust gas. The heat exchanger has a channel system including at least one exhaust gas channel, through which an exhaust path leads, and at least one coolant channel, through which a coolant path of a coolant leads, fluidically separate from the exhaust gas path and arranged in a heat-transferring manner with the exhaust gas path for heat exchange during operation. A cooling gas outlet, opening into the exhaust gas path upstream of the channel system, is provided for introducing a cooling gas into the exhaust gas path upstream of the channel system.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: April 19, 2022
    Inventors: Richard Bruemmer, Klaus Irmler, Falk Schneider
  • Patent number: 11242792
    Abstract: Various embodiments include a method for the production of a sensor for an exhaust gas stream of an internal combustion engine, wherein the sensor comprises a first electrode and a second electrode. The method comprises: arranging a glass solder in a mold substantially between and substantially insulating the first electrode and the second electrode; arranging an insulating element in the mold in contact with a free surface of the glass solder; and finish molding the glass solder into a glass insulator together with the insulating element in a predetermined position relative to the first electrode and the second electrode. The insulating element shapes the glass insulator during the finish molding and at least partially isolates the glass insulator from the exhaust gas of the internal combustion engine during a measuring operation of the sensor.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: February 8, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Christoph Hamann, Kay Schwarzkopf, Stefan Kohn, Hajo Gugel, Tim Walde, Christian Kiefl
  • Patent number: 11228851
    Abstract: A cerumen protection plug for a hearing device. The cerumen protection plug prevents cerumen from passing along a sound conduit in the hearing device and blocking sound output from a receiver in the hearing device. The cerumen protection plug includes a circular plug containing a cerumen barrier. A positioning handle allows the cerumen barrier to be positioned along the sound conduit, where it prevents cerumen that has entered the sound conduit from traveling along the sound conduit to the receiver or an output port of the receiver.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 18, 2022
    Assignee: Sonova AG
    Inventors: Erich Dittli, Christoph Bosshard, Marius Ruefenacht, Joseph Muller, Andre Ochsenbein, George Meier, Andreas Muller, Erdal Karamuk, Markus Muller