Condition Responsive Control Of Heater, Cooler, Igniter, Or Fuel Supply Of Reactor Patents (Class 60/286)
  • Patent number: 11529954
    Abstract: A mild hybrid vehicle controlling method, wherein the mild hybrid vehicle has a driver assistance module for detecting peripheral vehicle information and a mild hybrid starter & generator (MSHG) may comprises comparing, by a controller, the peripheral vehicle information with a predetermined reference value and deciding whether after-treatment regeneration control is performed or not according to a result of the comparison.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: December 20, 2022
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventor: Jae-Hyeok Song
  • Patent number: 11484847
    Abstract: A mixer assembly unit, for an exhaust system exhaust gas treatment unit of an internal combustion engine, mixes exhaust gas discharged by the internal combustion engine with reactant. A mixing section (12), downstream in relation to a reactant release device (14), mixes exhaust gas, flowing in an exhaust gas flow direction, with reactant. The mixing section includes a core flow duct (34), extending in a direction of a mixing section longitudinal axis (L), through which a first exhaust gas partial stream (T1) flows. A second exhaust gas partial stream (T2) flows through a jacket flow duct (36) surrounding the core flow duct and separated from the core flow duct by an inner wall (30). The reactant release device releases reactant into the core flow duct or/and into the first exhaust gas partial stream. A mixer (38) is provided at an upstream end area (22) of the mixing section.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: November 1, 2022
    Assignee: Purem GmbH
    Inventors: Michael Mayer, Heike Többen, Christoph Illi, Wolfgang Datz, Konstantin Kappes, Tobias Wolf, Philipp Weinmann
  • Patent number: 11465108
    Abstract: Dosing and mixing exhaust gas includes directing exhaust gas towards a periphery of a mixing tube that is configured to direct the exhaust gas to flow around and through the mixing tube to effectively mix and dose exhaust gas within a relatively small area. Some mixing tubes include a slotted region and a non-slotted region. Some mixing tubes include a louvered region and a non-louvered region. Some mixing tubes are offset within a mixing region of a housing.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: October 11, 2022
    Assignee: DONALDSON COMPANY, INC.
    Inventors: Matthew S. Whitten, Bruce Bernard Hoppenstedt
  • Patent number: 11454153
    Abstract: An electrical connector is provided to be arranged at the end of an electrical cable for complementary connection of an electro-actuator. The connector has a body defining a passage for the cable. The connector also has a hook to mechanically engage with a complementary feature of the electro-actuator.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: September 27, 2022
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Domenico Capolupo, Simon Coster
  • Patent number: 11440528
    Abstract: A vehicle comprises an aftertreatment system configured to reduce constituents of an exhaust gas. The vehicle also includes a controller configured to determine a predicted load on the vehicle during a route, and adjust at least one of a temperature of the aftertreatment system or an amount of a reductant inserted into the aftertreatment system based on the predicted load.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: September 13, 2022
    Assignee: Cummins Inc.
    Inventors: Archit N. Koti, Apurva A. Chunodkar, Arun Prakash Thunga Gopal, Feng Liu, Kenneth M. Follen, Michael Haas, Pinak Jayant Tulpule, Vivek A. Sujan
  • Patent number: 11434802
    Abstract: An internal combustion engine has an exhaust gas aftertreatment system comprising in the given order in the flow direction of the exhaust gas: a device for metering ammonia and/or a compound that can be decomposed to form ammonia into the exhaust gas to be cleaned, as a reducing agent; one or more SCR catalysts, which form a first SCR unit; one or more SCR and/or ammonia oxidation and/or ammonia slip catalysts, which form a second SCR unit; and a NOx sensor in the exhaust gas tail pipe. An amount, to be metered into the exhaust gas, of ammonia and/or of the decomposable compound is set using the nitrogen oxide concentration in the exhaust gas tail pipe that is determined by the NOx sensor, and the occurrence or non-occurrence of an ammonia excess in the region of the NOx sensor can be determined from the sensor signal of the NOx sensor by evaluating said sensor signal.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: September 6, 2022
    Assignee: Deutz Aktiengesellschaft
    Inventor: Volker Smits
  • Patent number: 11428135
    Abstract: Methods and systems for operating an engine that includes a catalyst and a particulate filter are described. In one example, release of reductant from an injector may be determined according to a plurality of metrics so that reliability of a release indication may be improved. In addition, operation of an engine may be adjusted responsive to the release indication so that exhaust system temperatures may be maintained.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: August 30, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Michiel J. Van Nieuwstadt, Paul Tennison
  • Patent number: 11421572
    Abstract: An exhaust gas aftertreatment system for an internal combustion engine includes an inlet conduit, a reductant decomposition chamber, a first selective catalytic reduction (SCR) catalyst member, a second SCR catalyst member, a mixing chamber, a particulate filter, a reductant delivery system, and a hydrocarbon delivery system. The inlet conduit is configured to receive exhaust gas from the internal combustion engine. The reductant decomposition chamber is fluidly coupled to the inlet conduit and configured to receive the exhaust gas from the inlet conduit. The first SCR catalyst member is fluidly coupled to the reductant decomposition chamber and configured to receive the exhaust gas from the reductant decomposition chamber. The second SCR catalyst member is fluidly coupled to the first SCR catalyst member and is configured to receive the exhaust gas from the first SCR catalyst member.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: August 23, 2022
    Assignee: Cummins Inc.
    Inventors: Rohan A. Siddhanthi, Neal W. Wallace, Michael Haas, Michael J. Ruth, Krishna Pradeep Chilumukuru, Shirish S. Punde
  • Patent number: 11415034
    Abstract: An aftertreatment system for treatment of exhaust gases exiting an engine includes a first Selective Catalytic Reduction (SCR) device in fluid communication with the engine. The first SCR device receives the exhaust gases exiting the engine for reducing a first quantity of oxides of nitrogen (NOx) present in the exhaust gases. The aftertreatment system also includes an oxidation catalyst in fluid communication with the first SCR device. The oxidation catalyst receives the exhaust gases exiting the first SCR device for oxidizing ammonia present in the exhaust gases into a second quantity of NOx. The aftertreatment system further includes a second SCR device in fluid communication with the oxidation catalyst. The second SCR device receives the exhaust gases exiting the oxidation catalyst for reducing the second quantity of NOx.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: August 16, 2022
    Assignee: Caterpillar Inc.
    Inventor: David Todd Montgomery
  • Patent number: 11408315
    Abstract: The device for injecting a fluid into an exhaust pipe comprises a fluid reservoir, an enclosure delimiting a fluid heating chamber, and a first injection system configured to inject the fluid from the reservoir into the heating chamber. At least one heating element extends at least partially into the heating chamber and is intended to be in contact with the fluid, with the at least one heating element being configured to heat the fluid. A second injection system is configured to inject the heated fluid from the heating chamber into the exhaust pipe.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: August 9, 2022
    Inventors: Jean-Louis Delevallee, Jonathan Canteloube, Ludovic Pertuis, Julien Roussilhe
  • Patent number: 11408321
    Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: August 9, 2022
    Assignee: Cummins Inc.
    Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
  • Patent number: 11377993
    Abstract: Subject of the invention is an exhaust gas purification system for a gasoline engine, comprising in consecutive order the following devices: a first three-way-catalyst (TWC1), a gasoline particulate filter (GPF) and a second three-way-catalyst (TWC2), wherein the wash coat load (WCL) of the TWC2 is greater than the WCL of the GPF, wherein the WCL is determined in g/l of the volume of the device. The invention also relates to methods in which the system is used and uses of the system.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: July 5, 2022
    Assignee: UMICORE AG & CO. KG
    Inventors: Jan Schoenhaber, Joerg-Michael Richter, Carolin Braun
  • Patent number: 11365664
    Abstract: A method for controlling a return valve of an exhaust system and to an exhaust system with a control unit which is configured to carry out the method. The method is based on the object of avoiding an overpressure in the line system for urea solution as a result of a reduction in the injection rate. The method includes the steps of determining whether one or more of the following states are present during the operation of the exhaust system: a) an injection rate per unit of time of urea solution of the dosing valve is less than or equal to a predefined injection limit, b) a pressure measured by the pressure sensor in the line system overshoots a predefined first upper pressure limit (P2). The return valve is opened for a first predefined opening duration (?t1) if states a) and b) are present and at least one of the states has already been present for at least a predefined period of time (?ta). The return valve is closed after the first predefined opening duration (?t1) has elapsed.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: June 21, 2022
    Assignee: Vitesco Technologies GmBH
    Inventors: Peter Bauer, Michael Hamann, Cheikh Diouf, Romain Jacques
  • Patent number: 11359531
    Abstract: A method of controlling an exhaust system for a diesel engine comprises providing an aftertreatment system comprising a first catalyst and a diesel exhaust fluid injection system, determining a preliminary dose of a diesel exhaust fluid of the diesel exhaust fluid injection system based on an incoming exhaust gas flow and an exhaust gas temperature, determining an NH3 factor based on incoming exhaust gas oxygen concentration and the incoming exhaust gas flow temperature, and determining a final dose of diesel exhaust fluid by multiplying the preliminary dose of diesel exhaust fluid by the NH3 factor.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: June 14, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Luca Lauritano, Daniela Meola, Andrea Pannuzzo
  • Patent number: 11359564
    Abstract: Increasing engine idle speed, combined with modulating the timing of the exhaust valve during idling, increases heat transfer from the engine to aftertreatment systems to reduce the time required for the aftertreatment system to reach a minimum temperature for efficient operation. The resultant increases in heat transfer include an increase of at least 30% in the flow rate of exhaust gases and an increase of exhaust temperature by at least 25° C.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: June 14, 2022
    Assignee: Purdue Research Foundation
    Inventors: Gregory M. Shaver, Kalen Vos, Mrunal Joshi
  • Patent number: 11352927
    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 temperature sensor at an underbody SCR system within the exhaust after-treatment system and a DEF injector upstream of a close-coupled SCR system within the exhaust after-treatment system. The DEF injector is operated to inject DEF into the exhaust gas flow at a rate that varies as a function of a temperature measured by the temperature sensor.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: June 7, 2022
    Assignee: PACCAR INC
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart
  • Patent number: 11339695
    Abstract: The exhaust purification system of an internal combustion engine comprises a catalyst 20 arranged in an exhaust passage and able to store oxygen, and an air-fuel ratio control device configured to control an air-fuel ratio of inflowing exhaust gas flowing into the catalyst. The catalyst has a precious metal and the precious metal has a property of a vapor pressure at a predetermined temperature becoming lower when oxidized. If a temperature of the catalyst is equal to or greater than a threshold temperature or if predicting a rise in temperature of the catalyst, the air-fuel ratio control device is configured to make the air-fuel ratio of the inflowing exhaust gas leaner than a stoichiometric air-fuel ratio so that an oxygen storage amount of the catalyst becomes equal to or greater than an upper side reference amount.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: May 24, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyoshi Ueda, Kazuhiro Umemoto
  • Patent number: 11333055
    Abstract: A catalyst deterioration diagnosis method is a method for a system. The system includes a stepped transmission or a continuously variable transmission connected to an internal combustion engine, a catalyst into which an exhaust gas from the internal combustion engine is introduced, and a gas sensor having sensitivity to ammonia that outputs a detection value corresponding to a component of an exhaust gas that has passed through the catalyst. The catalyst deterioration diagnosis method includes the following steps. Monitoring of temporary increase of a detection value of the gas sensor is started, and thereby a temporarily increased amount of the detection value of the gas sensor is acquired. The monitoring is started when upshifting of the stepped transmission or pseudo-upshifting of the continuously variable transmission is performed. Whether or not the temporarily increased amount is larger than a threshold amount is determined.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 17, 2022
    Assignee: NGK INSULATORS, LTD.
    Inventors: Taku Okamoto, Osamu Nakasone
  • Patent number: 11325579
    Abstract: A controller configured to control a hybrid vehicle includes a catalyst temperature increase control unit configured to execute a catalyst temperature increase control of increasing a temperature of a three-way catalyst device, a motoring control of rotating a crankshaft of an internal combustion engine with power of a motor in a state in which combustion of the internal combustion engine is stopped, and a fuel introduction process of introducing unburned air-fuel mixture into an exhaust passage by performing fuel injection in the internal combustion engine during the execution of the motoring control.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: May 10, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Nose, Yuto Ikeda, Hirofumi Hashinokuchi, Tatsuaki Suzuki, Eiji Ikuta, Keiichi Myojo, Hirokazu Ando
  • Patent number: 11319852
    Abstract: A reductant storage system for an internal combustion engine system includes a storage container having a bottom wall, a top wall opposite the bottom wall, an opening extending through the top wall, and a reservoir formed by a hollow interior of the storage container; a filter assembly; and a header assembly. The filter assembly extends through the opening and is configured to seal the opening and includes a filtering material. The header assembly extends through the opening and inside the filter assembly. The header assembly includes: (i) a first sensor configured to measure a quality of the reductant contained within the filter assembly and (ii) a second sensor configured to measure a level of the reductant contained within the filter assembly.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: May 3, 2022
    Assignee: Caterpillar Inc.
    Inventor: Kevin L. Dea
  • Patent number: 11316675
    Abstract: There is presented optical interferometer apparatus for generating at least a first and a second state for each of at least two different quantum cryptographic basis sets and associated methods for operating the apparatus. First and a second interferometer arm paths and at least two interferometer output paths are provided. Each of the first and second interferometer arm paths; and the first and second optical output paths comprises a controllable phase modulator for controllably changing the phase of light propagating along the respective paths. This maybe a silicon carrier depletion phase modulator. The output from the controllable phase modulators of the first and second optical output paths are used together for defining each of the first and second states for each respective basis set. In some examples at least one of the interferometer arm paths comprises a further controllable phase modulator such as a thermo-optic phase modulator.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: April 26, 2022
    Assignee: Kets Quantum Security LTD
    Inventor: Philip Sibson
  • Patent number: 11300064
    Abstract: Methods and systems are provided for an aftertreatment system. In one example, a system comprising a spark-ignited engine comprising a selective catalytic reduction device (SCR) arranged in an exhaust passage downstream of a catalyst, and an injector positioned to inject a reductant directly into the exhaust passage downstream of the catalyst subsequent an engine shut-off event.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: April 12, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael James Uhrich, Giovanni Cavataio, William Charles Ruona, Joseph Lyle Thomas, Ross Dykstra Pursifull
  • Patent number: 11293361
    Abstract: Provided is a control device for an internal combustion engine. The internal combustion engine includes, in an exhaust passage, an electrically heated catalyst device in which a catalyst is supported on a conductive base material) that generates heat when energized. The control device includes an electronic control unit configured to control the internal combustion engine such that, in a case where condensate is generated in the exhaust passage on the upstream side of the catalyst device in an exhaust flow direction, an engine output in a region where an engine load is equal to or greater than a predetermined load becomes smaller than in a case where condensate is not generated.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: April 5, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hirohito Kuno
  • Patent number: 11293319
    Abstract: The present disclosure is related to a system for regenerating a DPF and a method thereof. The system for regenerating a DPF during operation of an engine-powered forklift that includes the DPF for collecting particulate matter form exhaust gas discharged from an engine to an exhaust path includes: an engine control unit for controlling operation of the engine; an electro-hydraulic pump for discharging a working fluid that generates a hydraulic load; a control unit for determining a state of the forklift when a DPF regeneration request signal is received from the engine control unit, and controlling at least one of the hydraulic load of the electro-hydraulic pump and revolutions per minute of the engine according to the determined state of the forklift; and a diesel oxidation catalyst unit for regenerating the DPF according to the control of the control unit.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: April 5, 2022
    Assignee: DOOSAN CORPORATION
    Inventors: Hyun Kyu Kang, Byung Do Choi, Deok Rae Kim, Jun Il Yi
  • Patent number: 11286826
    Abstract: Various embodiments relate to a selective catalytic reduction system for treating exhaust gases of an internal combustion engine. The system includes an inlet section that receives exhaust gases from the engine. The system includes a tank storing diesel exhaust fluid (“DEF”), a pump, a valve, and an injector each in fluid communication with each other. The injector is coupled to the inlet exhaust pipe and configured to inject DEF into the exhaust gases flowing through the inlet exhaust pipe in a plurality of pulses. Each of the plurality of pulses injects a constant volume of DEF into the inlet exhaust pipe. The system further includes a controller configured to operate the pump and the valve such that a time interval between successive constant volume pulses of the plurality of pulses is varied based on a variable oxides of nitrogen content of the exhaust gases.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: March 29, 2022
    Assignee: Cummins Emission Solutions, Inc.
    Inventors: Douglas Mitchell, A. Carl McDonald, Jr.
  • Patent number: 11286835
    Abstract: Methods, apparatuses, and systems for estimating exhaust air mass-flow in an aftertreatment system. An embodiment includes a selective catalytic reduction (SCR) system including at least one catalyst, a differential pressure (dP) sensor operatively coupled to the SCR system, a temperature sensor, and a controller. The dP sensor is configured to measure a value of a differential pressure across the SCR system, determine a first output value from the dP sensor, and a first temperature output value from the temperature sensor. The first output value is indicative of the value of the differential pressure across the SCR system. The first temperature output value is indicative of a temperature of the SCR system. The controller is further configured to estimate an exhaust air mass-flow output from the aftertreatment system using the first output value from the dP sensor and the first temperature output value from the temperature sensor.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: March 29, 2022
    Assignee: CUMMINS EMISSION SOLUTIONS INC.
    Inventor: Sriram Srinivasan
  • Patent number: 11286825
    Abstract: A vehicle includes an internal combustion engine, an electrically-heated catalyst device provided in an exhaust passage thereof, and an electronic control unit configured to control base material electric power supply supplied to a conductive base material. The catalyst device includes the conductive base material that generates heat upon energization, and a catalyst heated through the conductive base material. The electronic control unit determines whether the conductive base material is in a stagnant period, where temperature of the conductive base material partially stagnates in a prescribed temperature zone, the stagnant period occurring when water is present inside the catalyst device in a process of increase in temperature of the conductive base material. When determining that the conductive base material is in the stagnant period, the electronic control unit controls the base material electric power supply to be lower than when determining otherwise.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: March 29, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shingo Korenaga
  • Patent number: 11280239
    Abstract: A selective catalytic reduction (SCR) system includes a SCR canister including a SCR inlet configured for receiving engine exhaust from a work vehicle and a SCR outlet configured for expelling a treated exhaust flow. The system includes first and second SCR chambers housed within the SCR canister and configured to react mixtures of exhaust reductant and associated first and second portions of the engine exhaust with a catalyst to generate first and second treated exhaust flow portions, respectively. The system includes an outlet chamber positioned between the SCR outlet and the first and second SCR chambers. Moreover, the outlet chamber is configured to combine the first and second treated exhaust flow portions to form the treated exhaust flow. Further, the system includes a chamber mixer positioned upstream of the SCR outlet and configured to promote mixing of the first and second treated exhaust flow portions within the outlet chamber.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 22, 2022
    Assignee: CNH Industrial America LLC
    Inventors: Kaushal Ghorpade, Daniel Alan Morey, Hesam Abbassi, Panos Tamamidis, Samrendra K. Singh
  • Patent number: 11268422
    Abstract: A exhaust gas mixing apparatus includes an outer cylinder being configured to an insulating ceramic; fins being configured to an insulating ceramic, the fins being provided on an inner side of the outer cylinder; and an electric heating portion embedded in at least a part of the outer cylinder and/or the fins.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: March 8, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukio Miyairi, Masaaki Masuda, Shinzo Hayashi, Yoshifumi Takagi
  • Patent number: 11268423
    Abstract: A mixer comprises a first subassembly including a first holder fixed to a first mixing element. The first holder includes a base interconnecting a first sidewall with a spaced apart second sidewall. The first mixing element includes a base interconnecting first and second spaced apart mounting flanges that are fixed to the first and second sidewalls. A second subassembly includes a second holder fixed to a second mixing element. The second holder includes a base interconnecting a third sidewall with a spaced apart fourth sidewall. The second mixing element including a base interconnecting third and fourth spaced apart mounting flanges that are fixed to the third and fourth sidewalls. Distal ends of the first sidewall and the third sidewall are fixed to one another. Distal ends of the second sidewall and the fourth sidewall are fixed to one another.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 8, 2022
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Jason Roy Porter, Ronald Rohraff
  • Patent number: 11261775
    Abstract: The present application provides a reductant dosing system for an SCR catalyst comprising an injector, a storage tank and a reductant pump arranged in a first fluid line between the storage tank and the injector for pumping reductant from the storage tank to the injector. The reductant dosing system comprises pressurizing means for pressurizing the storage tank.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: March 1, 2022
    Assignee: Liebherr-Components Colmar SAS
    Inventors: Salvatore Collura, Thorben Phillip, Ghislain Peterschmitt
  • Patent number: 11261809
    Abstract: Systems and methods for improving regeneration of a particulate filter located in an exhaust system of a vehicle are presented. In one example, the particulate filter is regenerated when the vehicle is expected to operate in a stationary electric power generating mode where the vehicle supplies electric power to off-board electric power consumers.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: March 1, 2022
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 11261804
    Abstract: An internal combustion engine system includes a combustion cylinder provided with a reciprocating piston movable between a top dead center (TDC) and a bottom dead center (BDC) within the combustion cylinder. A first outlet valve is connected to the combustion cylinder for controllably directing exhaust gas from the combustion cylinder to a first exhaust gas manifold of the internal combustion engine system. A second outlet valve is connected to the combustion cylinder for controllably directing exhaust gas from the combustion cylinder to a second exhaust gas manifold of the internal combustion engine system. A turbocharger system includes a turbine and a compressor, wherein the turbine is arranged in fluid communication with the first exhaust gas manifold. An exhaust emission control device is arranged in fluid communication with the second exhaust gas manifold.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: March 1, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Arne Andersson
  • Patent number: 11255283
    Abstract: A gaseous fuel engine system includes an exhaust controller coupled with a temperature sensor and a NOx sensor, and structured to actuate open an electrically actuated bypass valve to bypass an oxidation catalyst with exhaust, based on an exhaust temperature and an exhaust NOx amount to mitigate production of yellow smoke. Yellow smoke mitigation logic may run during startup and when the gaseous fuel engine is in a lower part of an engine load range. The yellow smoke mitigation logic can be selectively triggered in response to transient engine load increases when the gaseous fuel engine is operating in an upper part of an engine load range.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 22, 2022
    Assignee: Caterpillar Inc.
    Inventors: Arnold Myoungjin Kim, Ronald G. Silver, Paul Sai Keat Wang, Jaswinder Singh
  • Patent number: 11255243
    Abstract: An injection assembly for a vehicle exhaust system includes a housing defining a fluid cavity, a doser mounted to the housing and configured to inject a fluid into the fluid cavity, and a valve to control flow of the fluid. The valve is moveable between an open position and a closed position. A resilient member is configured with a biasing force to bias the valve to the closed position. The biasing force is overcome when fluid is heated downstream of the valve and exceeds a predetermined pressure level to allow backflow into the fluid cavity.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: February 22, 2022
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Edward Kinnaird, John Rohde, Atul Shinde, Tony Parrish
  • Patent number: 11248506
    Abstract: An automotive exhaust aftertreatment system includes a doser. The doser includes a doser body and a valve system that opens to discharge a reagent into exhaust gas. The doser includes a heater to heat the reagent prior to releasing the reagent into the exhaust gas.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: February 15, 2022
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Edward Kinnaird, John Rohde
  • Patent number: 11247173
    Abstract: A two-stage mixer may include a guiding element and a mixing element. The guiding element may be configured to be fixedly mounted to an interior of an exhaust conduit. The mixing element may be configured to be fixedly mounted to the interior of the exhaust conduit in a position downstream from the guiding element. The mixing element may include a central disk, a plurality of mounting arms extending radially from the central disk, and a plurality of blades extending radially from the central disk. At least one mounting arm of the plurality of mounting arms may include a fin extending therefrom, and at least one blade of the plurality of blades may include a fin extending therefrom.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: February 15, 2022
    Assignee: Caterpillar Inc.
    Inventors: Yung T. Bui, Srinivasa Perumal Velu
  • Patent number: 11248545
    Abstract: Systems and methods for operating an engine with deactivating and non-deactivating valves are presented. In one example, estimates of engine fuel consumption for operating the engine with a plurality of cylinder modes or patterns while a transmission is engaged in different gears are determined and are used as a basis for deactivating engine cylinders.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: February 15, 2022
    Assignee: Ford Global Technologies, LLC
    Inventor: Chris Paul Glugla
  • Patent number: 11242790
    Abstract: A mixer assembly for a vehicle exhaust system includes a housing having an inlet portion and an outlet portion that are connected to each other with a channel portion. An inlet baffle is positioned at the inlet portion and an outlet baffle is positioned at the outlet portion. The inlet and outlet baffles are non-concentric. An injector housing is attached to the housing downstream of the inlet baffle and a spray guide is mounted within the injector housing. The spray guide has a spray inlet and a spray outlet that directs spray into the channel portion.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: February 8, 2022
    Assignee: Faurecia Emissions Control Technologies
    Inventors: Chris Chapman, Philip M. Dimpelfeld, Syed Saleem Quadri, Aejaz Ahmed
  • Patent number: 11242787
    Abstract: Selective catalytic reduction systems are known and are generally included in exhaust systems of diesel engines in order to treat the exhaust gases of such engines. Such systems involve the introduction of diesel exhaust fluid (DEF) into exhaust gas flowing in an exhaust passage of an engine. When dosing DEF onto a hydrolysis catalyst in a SCR system, the DEF will under certain conditions cool the hydrolysis catalyst sufficiently to either slow down or effectively prevent ammonia release, which creates a lag or delay in the function of the hydrolysis catalyst. This limits the amount of control which can be exerted over ammonia storage in the SCR catalyst, and NOx conversion. In a first step, a set of measurement data is received from one or more sensors provided in the system.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: February 8, 2022
    Assignee: Perkins Engines Company Limited
    Inventors: Leo Shead, Alexis Eden, Ronald Silver, Thomas Steffen
  • Patent number: 11242812
    Abstract: An engine control method includes: a first fuel supply step of supplying fuel into the combustion chamber using an injector when a spark plug makes flame in the combustion chamber so that an air-fuel mixture is generated at least around the spark plug, the air-fuel mixture having an air-fuel mass ratio A/F or a gas-fuel mass ratio G/F, in which gas includes air, higher than a stoichiometric air-fuel ratio; after the first fuel supply step, an ignition step of making the flame in the combustion chamber in the compression stroke using the spark plug; and after the ignition step, a second fuel supply step of supplying the fuel into the combustion chamber in the compression stroke using the injector to increase a fuel concentration of the air-fuel mixture in the combustion chamber.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: February 8, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Mitsuo Hitomi, Eiji Nakai, Naohiro Yamaguchi, Hiroki Morimoto
  • Patent number: 11242786
    Abstract: The present disclosure relates to ECU for an exhaust purging system comprises: a NOx catalyst provided in an exhaust passage; and a second composite sensor detecting an air-fuel ratio in a downstream of the NOx catalyst, the ECU, which performs a routine of a purge control, calculates the sum of values of the reductant that have been supplied to the NOx catalyst since the start of the routine of the purge control, determines whether the sum is greater than or equal to an end determination threshold, determines whether the air-fuel ratio is less than or equal to a predetermined value, and ends the routine of the purge control in response to an earlier one of a first affirmative determination that the sum is greater than or equal to the end determination threshold and a second affirmative determination that the air-fuel ratio is less than or equal to the predetermined value.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: February 8, 2022
    Assignee: DENSO CORPORATION
    Inventor: Kazunari Azuma
  • Patent number: 11236656
    Abstract: The present inventive concept relates to a vehicle exhaust gas abatement apparatus. The vehicle exhaust gas abatement apparatus includes: an exhaust gas discharging unit having an exhaust gas discharging pass which is formed on one side thereof and along which an exhaust gas generated from an engine of a vehicle is discharged; a catalytic converter connected to a rear end of the exhaust gas discharging unit along a direction in which the exhaust gas is discharged and removing harmful components in the exhaust gas using a catalyst; and a surface combustion unit coupled to one side of the exhaust gas discharging unit and heating an inner portion of the exhaust gas discharging unit so that the exhaust gas is heated to an activation temperature or higher of the catalyst and then arrives at the catalytic converter.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: February 1, 2022
    Inventors: Se Young Lee, Jong Hun Woo, Dae Hee Kim, Hyo Jong Gil, Duk Euy Lee, Taek Heon Lee
  • Patent number: 11237711
    Abstract: A device receives a request to enroll in music sharing. After receiving the request, the device displays an enrollment user interface that includes concurrently displaying representations of a plurality of playlists created by a first user and privacy settings for the plurality of playlists. The privacy settings have default values. The enrollment user interface includes a first affordance that corresponds to a first playlist of the plurality of playlists, and a second affordance that corresponds to a second playlist of the plurality of playlists. The device receives one or more user inputs changing the privacy settings from corresponding default privacy settings to user-specified privacy settings. After completing enrollment, the device provides access to the plurality of playlists of the first user to other users with a predetermined relationship to the first user based on the privacy settings for the plurality of playlists.
    Type: Grant
    Filed: May 12, 2018
    Date of Patent: February 1, 2022
    Assignee: APPLE INC.
    Inventor: Ofer Morag
  • Patent number: 11235751
    Abstract: Systems and methods to reduce operating expenses of a vehicle based on control of operation of a vehicle system. The system includes a controller. The controller is structured to receive one or more parameters comprising expense data, adjust operating expenses of a vehicle system based on the one or more parameters, and generate a command structured to adjust operation of the vehicle system responsive to the adjustment of the operating expenses.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 1, 2022
    Assignee: Cummins Inc.
    Inventors: Jennifer Kay Light-Holets, Robert Dziuba
  • Patent number: 11230958
    Abstract: A vehicle exhaust system includes an injector assembly having an injector mount configured to mount an injector to an exhaust component. The injector mount includes a spray opening surrounding a spray axis. An injector housing extends from an inlet end that receives exhaust gases to an outlet end. The inlet end defines a planar area that is transverse to the spray axis. A spray protector extends axially from the injector mount to break the planar area. A vehicle exhaust component assembly comprising a mixer with the injector assembly and a method for injecting a fluid into an exhaust component using the injector assembly are also disclosed.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: January 25, 2022
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Alfred N. Tucker, Tomasz Kozakeiwicz, Syed Saleem Quadri, Jeffery Prairie
  • Patent number: 11225894
    Abstract: An exhaust aftertreatment system for use with an over-the-road vehicle is disclosed. The exhaust aftertreatment system includes a flash-boil doser mounted to an exhaust conduit and a catalyst coupled to the exhaust conduit. The flash-boil doser configured to inject heated and pressurized reducing agent into an exhaust passageway defined by the exhaust conduit for distribution throughout exhaust gases passed through the exhaust conduit. The catalyst configured to react the reducing agent with the nitrous oxide in the flow of exhaust gases to provide treated exhaust gases with a reduced nitrous oxide amount.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 18, 2022
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventor: Robin Willats
  • Patent number: 11215097
    Abstract: An automated diesel exhaust fluid (DEF) system and method for refilling DEF. The automated DEF system provides DEF refilling after an initial setup and without manual intervention. The automated DEF system includes a electric DEF flow control device that controls the flow of DEF. The electric DEF flow control device may include control circuitry, an electrics enclosure that encloses the control circuity, an electric fluid sensor, a valve, a beacon light, a status light, a button, a threaded swivel connection, and a mandrel on the inside of the threaded swivel connection.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: January 4, 2022
    Assignee: Chemoil Energy Services LLC
    Inventor: Brennan Schmidt
  • Patent number: 11215098
    Abstract: Selective catalytic reduction (SCR) systems are known and are generally included in the exhaust systems of diesel engines in order to treat the exhaust gases of such engines. Such systems typically involve the introduction of a diesel exhaust fluid (DEF) into exhaust gas flowing in an exhaust passage of an engine. DEF dosing systems are limited by the amounts of DEF that can be delivered without deposits forming on surfaces of the aftertreatment system. An impaction device is dosed with DEF at a first rate based on a set of characteristics of the SCR system. A second set of characteristics, such as an available storage capacity for DEF, is determined based on a set of criteria, such as a decomposition rate of DEF. Based on the second set of characteristics, the DEF dosing rate is changed to a second rate. The dosing rate is reverted to the first rate after a second set of criteria, e.g. a lower threshold of available storage for DEF, are fulfilled.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 4, 2022
    Assignee: Perkins Engines Company Limited
    Inventors: Alexis Eden, Leo Shead, Ronald Silver, Ben Reid, Graham Hargrave, Paul Gaynor, Thomas Lockyer
  • Patent number: 11208934
    Abstract: A mixing assembly for an exhaust aftertreatment system includes a mixing body, an upstream plate, a downstream plate, and a swirl plate. The mixing body includes an upstream mixing body opening and a downstream mixing body opening. The upstream mixing body opening is configured to receive exhaust gas. The upstream plate is coupled to the mixing body. The upstream plate includes a plurality of upstream plate openings. Each of the plurality of upstream plate openings is configured to receive a flow percentage that is less than 50% of the total flow of the exhaust gas. The downstream plate is coupled to the mixing body downstream from the upstream plate in a direction of exhaust gas flow. The downstream plate includes a downstream plate opening. The swirl plate is positioned between the upstream plate and the downstream plate and defines a swirl collection region and a swirl concentration region.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: December 28, 2021
    Assignee: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Akshat Gattani, Nitin Tripathi