Condition Responsive Control Of Heater, Cooler, Igniter, Or Fuel Supply Of Reactor Patents (Class 60/286)
  • Patent number: 11891940
    Abstract: An exhaust catalyst management apparatus to be applied to a vehicle includes a differential pressure sensor and one or more processors. The differential pressure sensor detects an accumulation state of an exhaust-containing substance in a catalyst device. The one or more processors are coupled to the differential pressure sensor and a vehicle outside sensor. The one or more processors determine whether or not travel environment is suited to carrying out an output control for removal, based on a result of the detection of surroundings of the vehicle by a vehicle outside sensor. Upon determining that the travel environment is suited to carrying out the output control for removal, the one or more processors carry out the output control for removal, while the vehicle is traveling, in accordance with a result of the determination of the accumulation state of the exhaust-containing substance in the catalyst device.
    Type: Grant
    Filed: May 16, 2023
    Date of Patent: February 6, 2024
    Assignee: SUBARU CORPORATION
    Inventor: Shinji Adachi
  • Patent number: 11849350
    Abstract: A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a receiver configured to receive, from the base station apparatus, an RRC message including an EHC configuration; and a processing unit. The processing unit configures an EHC protocol in accordance with the EHC configuration, and adds a context identifier to data in processing of the EHC protocol, and indicates, in a case that the context identifier is a particular value, that an Ethernet header of the data is uncompressed.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: December 19, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takako Hori, Hidekazu Tsuboi, Shohei Yamada
  • Patent number: 11834973
    Abstract: This oil case of an outboard motor is provided below an engine and stores lubricating oil of the engine. In this method for manufacturing the oil case, the oil case is manufactured so as to comprise: an oil chamber; an introduction path that guides upward cooling supply water drawn in from outside the outboard motor; a delivery path that guides downward cooling discharge water that has cooled the engine; a main exhaust path that guides exhaust gas of the engine downward; and a sub exhaust path that guides exhaust gas during low-speed rotation of the engine. The oil chamber, the introduction path, the delivery path, the main exhaust path and the sub exhaust path form an integral structure.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: December 5, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Tatsuya Kuroda
  • Patent number: 11828243
    Abstract: An exhaust gas control apparatus for an internal combustion engine includes: a catalyst disposed in an exhaust passage of the engine and configured to be able to occlude oxygen; an air-fuel ratio sensor that detects an air-fuel ratio of an out-flow exhaust gas; and an air-fuel ratio control device that controls an air-fuel ratio of an in-flow exhaust gas to a target air-fuel ratio. The device executes air-fuel ratio reduction control in which the target air-fuel ratio is set to a rich setting air-fuel ratio, and corrects a parameter related to the air-fuel ratio reduction control such that an amount of a reducing gas supplied to the catalyst is decreased when a minimum air-fuel ratio obtained when the detected air-fuel ratio is varied to a rich side is richer than the rich setting air-fuel ratio or an average value of detected air-fuel ratios of the in-flow exhaust gas.
    Type: Grant
    Filed: February 15, 2023
    Date of Patent: November 28, 2023
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Keiichiro Aoki
  • Patent number: 11814996
    Abstract: A method (200) for operating an exhaust-gas catalytic converter (130) with central coordination of heating measures that are intended to heat the exhaust-gas catalytic converter (130) to a temperature level at which the reactions to be catalyzed take place with an adequate reaction rate (so-called catalytic converter window). Through the central coordination of the heating measures on the basis of defined heating strategies, in which in each case one or more of the available heating measures are combined with one another in an expedient manner, the required outlay in terms of control can be considerably reduced, and mutual interference of the heating measures can be avoided.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: November 14, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Beate Rittmann, Jan Kappa, Marcel Alexander Schneck, Michael Bachner
  • Patent number: 11732625
    Abstract: Disclosed herein are emission treatment systems, articles, and methods for selectively reducing NOx compounds. The systems include a hydrogen generator, a hydrogen selective catalytic reduction (H2-SCR) article, and one or more of a diesel oxidation catalyst (DOC) and/or a lean NOx trap (LNT) and/or a low temperature NOx adsorber (LTNA). Certain articles may comprise a zone coated substrate and/or a layered coated substrate and/or an intermingled coated substrate of one or more of the H2-SCR and/or DOC and/or LNT and/or LTNA catalytic compositions.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: August 22, 2023
    Assignee: BASF Corporation
    Inventor: Yuejin Li
  • Patent number: 11661878
    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: May 5, 2022
    Date of Patent: May 30, 2023
    Assignee: PACCAR Inc
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart
  • Patent number: 11624310
    Abstract: A component for a mixer of a vehicle exhaust system, according to an exemplary aspect of the present disclosure includes, among other things, a doser mount comprising a curved body having a center boss with a doser opening defining a doser axis. The curved body includes at least a first mating surface configured to receive a first mixer shell defined by a first dimension and a second mating surface configured to receive a second mixer shell defined by a second dimension different than the first dimension.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 11, 2023
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Randall Cvelbar, Eduardo Alano, Amee Bhatt, Amaresh Rakkasagi, Anthony Burnett
  • Patent number: 11583812
    Abstract: A mixer for a vehicle exhaust gas system includes a mixer housing defining an internal cavity and having a mixer inlet configured to receive exhaust gas and a mixer outlet to direct exhaust gas to downstream exhaust components. A flow device is configured to receive the exhaust gas from the mixer inlet and to facilitate mixing of the exhaust gas and a reductant introduced into the first flow device. The flow device comprises a Venturi body centered on a body center axis, and the Venturi body comprises a body inlet configured to receive the exhaust gas from the mixer inlet and a body outlet configured to provide the exhaust gas to the mixer outlet. The Venturi body also includes a louver extending from an internal surface of the mixer housing to a distal edge that is downstream of the body outlet. An upstream vane is positioned within the Venturi body proximate the body inlet and is coupled to an upstream vane hub that is centered on an upstream vane hub axis.
    Type: Grant
    Filed: May 29, 2021
    Date of Patent: February 21, 2023
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventor: Eduardo Alano
  • Patent number: 11572816
    Abstract: A vehicle includes an engine having an intake manifold and an exhaust manifold. An exhaust system is connected to the exhaust manifold and has an aftertreatment device. The aftertreatment device has a body defining inlet and outlet cones, a heating element, and a catalyst disposed in the body between the cones. An air-circulation system has conduit extending from downstream of the catalyst to the intake manifold and an air-circulation device configured to circulate air from the outlet cone, through the conduit to the intake manifold, through the engine, to the inlet cone, and through the aftertreatment device.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: February 7, 2023
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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