Reactor Plus A Washer, Sorber Or Mechanical Separator Patents (Class 60/297)
  • Patent number: 11408317
    Abstract: Various embodiments include methods for determining the efficiency of an SCR catalytic converter in a system including a nitrogen oxide sensor, and a metering device for a reducing agent arranged in an exhaust-gas duct, and an exhaust recirculation line with a recirculation valve disposed downstream of the SCR catalytic converter and feeding an intake region of the engine. The methods comprise: setting or identifying a quasi-steady-state operating state and an associated recirculation rate; adding a first quantity of reducing agent using the metering device; measuring a resulting first nitrogen oxide value using the sensor; adding a further predefined quantity, different from the first quantity; measuring the resulting nitrogen oxide values using the sensor; and determining the efficiency of the SCR catalytic converter based at least in part on the associated exhaust-gas recirculation rate and the measured nitrogen oxide values.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: August 9, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Giovanni Avolio, Sebastian Beer, Mattia Perugini
  • Patent number: 11400414
    Abstract: The present invention relates to a particulate filter which comprises a wall flow filter of length L and three mutually different catalytically active coatings X, Y and Z, wherein the wall flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls forming surfaces OE and, respectively, OA, and wherein the channels E are gas-tightly sealed at the second end and the channels A are gas-tightly sealed at the first end, characterized in that the coating X is located in the porous walls, the coating Y is located in the channels E on the surfaces OE and the coating Z is located in the channels A on the surfaces OA.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: August 2, 2022
    Assignee: UMICORE AG & CO. KG
    Inventors: Naina Deibel, Stephanie Spiess, Martin Roesch, Joerg-Michael Richter, Jan Schoenhaber, Susanne Kunert
  • Patent number: 11365662
    Abstract: A system includes an aftertreatment system having a catalyst, a heater, at least one sensor configured to determine an exhaust gas temperature, and a controller. The controller is structured to determine whether the exhaust gas temperature is at or below a predefined threshold temperature, provide a first command to start and control the heater in response to the exhaust gas temperature being at or below the predefined threshold temperature, modulate control of the heater as a function of the predefined threshold temperature and an actual temperature, and selectively provide a second command for a close post injection based on the exhaust gas temperature. The controller is further structured to coordinate the first and second commands using a chaining sequence, wherein the first command is provided followed by the second command only if the predefined threshold temperature is not attained by the first command.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: June 21, 2022
    Assignee: Cummins Inc.
    Inventor: Avra Brahma
  • Patent number: 11344845
    Abstract: Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 31, 2022
    Assignee: BASF Corporation
    Inventors: Kenneth E. Voss, Kevin A. Hallstrom, Sanath V. Kumar, Susanne Stiebels, Marius Vaarkamp
  • Patent number: 11346309
    Abstract: The invention relates to a method for operating an internal combustion engine system (2), wherein the internal combustion engine system (2) is provided with an air intake duct (3), an exhaust gas duct (4) and an exhaust gas recirculation (EGR) system (5), wherein the EGR system (5) comprises an EGR conduit (6) that fluidly connects the exhaust duct (4) and the intake duct (3), and wherein a gas feeding device (7) configured to feed exhaust gas from the exhaust duct (4) to the intake duct (3) is arranged in the EGR conduit (6). The method is characterized in that it comprises the step of: detecting an indication of accumulated deposits of soot, hydrocarbons or other contaminants in the gas feeding device (7) by determining whether a rotational friction of a rotary member (71, 72) of the gas feeding device (7) exceeds a threshold value.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 31, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Fredrik Rahm, Johan Carlén Andersson
  • Patent number: 11274582
    Abstract: A flow hood assembly for an engine aftertreatment system having a particulate filter and a selective catalytic reduction device is disclosed. An outer case defines a cavity, the outer case having an inlet and an outlet formed therein, and a neck section formed between the inlet and the outlet. A socket in the outer case is in an opposed relationship to the outlet and is shaped to receive an injector that introduces a reducing agent into the flow of exhaust gases. A baffle reduces a cross-sectional area of the cavity at the neck section to increase exhaust gas velocity at a sensor positioned at the neck section. A deflector member in the cavity between the baffle and the socket directs a portion of the exhaust gases towards the socket and across the injector nozzle.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 15, 2022
    Assignee: Perkins Engines Company Limited
    Inventors: Richard Pill, Andrew Keen, Srikanth Tummala, Susannah Freeman, Venkata Sirisha Inkollu, Sean Butler
  • Patent number: 11167273
    Abstract: The present disclosure provides SCR catalyst compositions, catalyst articles, and catalyst systems, as well as methods of reducing the amount of NOx present in an engine exhaust gas, particularly exhaust from a gasoline engine. The catalyst compositions particularly can comprise a doped ceria substrate, particularly a ceria support doped with at least a niobia component, and optionally further doped with a further material, particularly a base metal oxide (BMO).
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: November 9, 2021
    Assignee: BASF Corporation
    Inventors: Xiaolai Zheng, Patrick Burk
  • Patent number: 11162405
    Abstract: An exhaust purification system of an internal combustion engine comprises a filter trapping particulate matter in exhaust gas, a differential pressure sensor detecting a differential pressure before and after the filter or a differential pressure between a pressure in the exhaust passage and an atmospheric pressure, a temperature sensor detecting a temperature of exhaust gas, and a deposition calculating part configured to calculate an amount of particulate matter deposited at the filter. The deposition calculating part is configured to calculate a first estimated value of an amount of the particulate matter based on the differential pressure, calculate a second estimated value of an amount of the particulate matter based on an amount of increase of temperature of the exhaust gas, and calculate an amount of the particulate matter based on the first estimated value and the second estimated value.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: November 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyasu Kobashi, Noriyasu Adachi, Yusuke Saito
  • Patent number: 11156354
    Abstract: The invention relates to a method for evaluation of fouling of passages of a spacer plate (10) of a tubular heat exchanger (11), wherein first, second and third pressure sensors (31, 32, 33) are arranged, the method comprising steps of: (a) during a transient operation phase of the heat exchanger determination of a value over time of Wide Range Level NGL, from the measurements of the first and third pressure sensors (31, 33), and of a value over time of Narrow Range Level NGE, from the measurements of the second and third pressure sensors (31, 33); (b) determination of a value over time of Steam Range Level deviation ?NGV, corresponding to the NGL from which a component representative of a variation of free water surface in the heat exchanger has been filtered, from the values of NGL and NGE; (c) comparison of the determined value of ?NGV with a set of reference profiles ?NGVi for said transient operation phase of the heat exchanger, each reference profile ?NGVi being associated with a level of fouling so
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 26, 2021
    Inventors: Julien Vasseur, Aurélien Schwartz, David Pineau
  • Patent number: 11105242
    Abstract: The exhaust gas purification device of the present embodiment is provided in an exhaust gas flow path of an internal combustion engine. The exhaust gas purification device includes a honeycomb catalyst and a PM trapping filter. The honeycomb catalyst is formed by supporting a catalyst on a first substrate which is made of a promoter and has a honeycomb structure. The PM trapping filter is located on the exhaust gas downstream side of the honeycomb catalyst and includes a second substrate having a honeycomb structure, configured to be capable of trapping PM.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: August 31, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yoichi Kadota, Yasushi Takayama
  • Patent number: 11014077
    Abstract: The invention relates to a catalyst comprising a small-pore zeolite that contains iron and copper and has a maximum ring size of eight tetrahedral atoms, characterized in that the channel width of the small-pore zeolite amounts to >3.8 ? (0.38 nm) in at least one dimension.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: May 25, 2021
    Assignee: UMICORE AG & CO. KG
    Inventors: Fei Wen, Nicola Soeger, Jürgen Gieshoff
  • Patent number: 11002173
    Abstract: A freezing diagnosing device to be installed in an engine includes an ambient temperature sensor, a liquid temperature sensor, and a freezing determination unit. The ambient temperature sensor detects an ambient temperature. The liquid temperature sensor detects the temperature of a liquid held in the engine. The freezing determination unit determines that a freezing state of a pipe coupled to a pressure sensor in the engine is established when one or both of a first condition and a second condition are satisfied. The first condition is that the ambient temperature detected by the ambient temperature sensor is equal to or less than a first threshold. The second condition is that the temperature of the liquid detected by the liquid temperature sensor is equal to or less than a second threshold.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: May 11, 2021
    Assignee: SUBARU CORPORATION
    Inventors: Naoki Matsumoto, Kosuke Furuta, Daiki Kita, Manabu Ishikawa, Yoshimichi Sasaki, Naoki Miura
  • Patent number: 10989093
    Abstract: Systems, methods, and apparatuses for adaptive regeneration of aftertreatment system components. The system may include an aftertreatment system and a controller. The controller is configured to access one or more parameters indicative of an ambient condition, determine a regeneration type of a regeneration process for a component of the aftertreatment system, determine an application in condition, and modify a parameter for the regeneration process for the component of the aftertreatment system. In some instances, the controller initiates the regeneration process. In some instances, the one or more parameters include an ambient air temperature, a reductant tank temperature, or a particulate matter sensor temperature. In some instances, the modified parameter includes a target regeneration temperature, a regeneration duration, a dwell time between regeneration process, a threshold value for the regeneration process, or a minimum regeneration temperature.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 27, 2021
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Yinghuan Lei, Todd A. Corbet, Robert Edward Cochran, Sergio M. Hernandez-Gonzalez, Uma Vajapeyazula, Weichao Wang, Marc A Greca, Joseph M. Brault
  • Patent number: 10987658
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a single catalyst layer deposited directly on the substrate; wherein the single catalyst layer comprises a first platinum group metal (PGM) component, an oxygen storage component (OSC) material, and an inorganic oxide; and wherein the single catalyst layer has a total washcoat loading of less than 2.4 g/in3.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: April 27, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Kenneth Camm, Hsiao-Lan Chang, Hai-Ying Chen, Michael Hales, Kwangmo Koo
  • Patent number: 10982578
    Abstract: An after treatment method is disclosed. The after treatment method may include: operating an engine at a lean air/fuel ratio; calculating an amount of NH3 stored in an SCR catalyst; calculating an amount of NOx which will flow into the SCR catalyst; determining whether conversion to a rich air/fuel ratio is desired; calculating, when the conversion to the rich air/fuel ratio is desired, a rich duration for which the rich air/fuel ratio is maintained and a target air/fuel ratio; and operating the engine at the target air/fuel ratio for the rich duration.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: April 20, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Nahm Roh Joo, Chang Hwan Kim, ChangHo Jung
  • Patent number: 10960366
    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: August 5, 2019
    Date of Patent: March 30, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Matthew S. Whitten, Bruce Bernard Hoppenstedt
  • Patent number: 10954872
    Abstract: An exhaust gas controller for an engine is equipped to appropriately regenerate a filter while restraining a deterioration in fuel efficiency. An oxidation catalyst and a filter capable of collecting particles in an exhaust passage, such that a regenerative injection in which fuel is injected for regenerating the filter is performed, even when a main injection is stopped. Under a first operating condition, in which the main injection is performed and a regeneration condition for the filter is satisfied, the regenerative injection is performed after the main injection. Under a second operating condition, in which the main injection is stopped and the regeneration condition for the filter is satisfied, a fuel injector is controlled to perform a former injection Q1 during a compression stroke and latter injections Q2, Q3 during an expansion stroke, as the regenerative injection.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: March 23, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hiroyuki Nishimura, Koichi Sugimoto
  • Patent number: 10947889
    Abstract: An exhaust gas aftertreatment module support assembly for supporting an exhaust gas aftertreatment module above a cylinder head and a cylinder block of an internal combustion engine includes a first mounting bracket, a second mounting bracket, and a cradle assembly. The first mounting bracket is configured to be coupled to the cylinder block. The second mounting bracket is configured to be coupled to the cylinder block. The cradle assembly is selectively coupled to the first mounting bracket and the second mounting bracket. The cradle assembly includes a first cradle bracket and a second cradle bracket. The first cradle bracket has a first cradle bracket cradle surface that is configured to interface with the exhaust gas aftertreatment module.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 16, 2021
    Assignee: Cummins Inc.
    Inventors: Atin Tandon, Timothy Mallett, Andris J. Maldups, Ninad S. Shrotriya, Jithin Joseph, Steve Halas, Daniel Coppola, Alexander Nazarov
  • Patent number: 10865675
    Abstract: This particulate matter (PM) sensor is provided with a porous body that has a partition disposed in a passage for exhaust gas including particulate matter, at least a pair of electrodes that oppose each other in a prescribed direction so as to sandwich the porous body, and a deposition part that includes the surface of the partition on the upstream side of the passage, has the particulate matter deposited thereon, and has, formed therein, pores having an average pore diameter smaller than the average pore diameter of the portion of the partition other than the deposition part.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: December 15, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Takayuki Furukawa, Kenji Fujii, Tadashi Uchiyama, Kazuo Ohsumi, Keisuke Nakamura
  • Patent number: 10830120
    Abstract: A heating system that heats the reducing agent supplier for supplying an urea aqueous solution to an exhaust passage of the internal combustion engine in a vehicle includes: a block heater that is provided in a housing formed with a coolant circuit of the internal combustion engine and can be supplied with power of an external power supply; a coolant circulation passage that is branched from the coolant circuit, is disposed in at least a part of the reducing agent supplier, and merges with the coolant circuit again; an on-off control valve that is provided in the middle of the coolant circulation passage; a bypass passage that connects an upstream side and a downstream side of the on-off control valve; and an on-off valve that is provided in the bypass passage.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 10, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Osami Sekine
  • Patent number: 10730011
    Abstract: A multi-functional composition of matter that is useful for injection into a flue gas stream to rapidly and efficiently remove mercury from the flue gas stream. The multi-functional composition of matter may include a fixed carbon sorbent and minerals, halogens in the form of halide salts, as well as other physical and chemical properties to enhance (1) the oxidation reaction kinetics for the oxidation of mercury species and (2) the mass diffusion kinetics of the mercury species.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: August 4, 2020
    Assignee: ADA Carbon Solutions, LLC
    Inventors: Joseph M. Wong, Christopher Vizcaino, Robert B. Huston, Frederick S. Cannon
  • Patent number: 10718248
    Abstract: An exhaust gas purification system, which includes an engine and an exhaust pipe that is connected to an exhaust manifold of the engine, includes: a catalyst converter disposed at a rear side the engine on the exhaust pipe; a selective catalytic reduction on diesel particulate filter (SDPF) disposed at a rear side of the catalyst converter on the exhaust pipe; a reducing agent injector disposed between the catalyst converter and the SDPF on the exhaust pipe and injecting a reducing agent; and a controller controlling an amount of the reducing agent injected from the reducing agent injector.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 21, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, FEV EUROPE GMBH
    Inventors: Myung Jong Lee, Jin Woo Park, Ki Hyung Joo, Waldemar Josef Kansy, Arun Palaniappan Muthukaruppan
  • Patent number: 10710572
    Abstract: A method for operating a drive train of a motor vehicle having a combustion engine and a further machine, the two drives proportionally supplying a torque for the motor vehicle, and a temperature of an exhaust gas of the motor vehicle is ascertained and the shares of the generated torque by the combustion engine and the further machine are adapted as a function of the temperature of the exhaust gas.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: July 14, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Alper Goek, Matthias Ege
  • Patent number: 10697345
    Abstract: A method to determine the actual quantity of metal powders or ashes trapped in a particulate filter, which involves determining an estimated value of the quantity of metal powders trapped in the particulate filter based on an estimation model; determining a measured value of the quantity of metal powders trapped in the particulate filter; updating the estimated value of the quantity of metal powders trapped in the particulate filter as a function of the measured value; and determining the actual quantity of metal powders or ashes trapped in a particulate filter as a function of the update of the estimated value of the quantity of metal powders trapped in the particulate filter.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: June 30, 2020
    Assignee: MAGNETI MARELLI S.p.A.
    Inventors: Umberto Di Martino, Lorenzo Francia, Daniele Benassi
  • Patent number: 10695752
    Abstract: An exhaust-gas purifying catalyst includes a lower layer containing ceria-based oxide particles and an upper layer containing metal oxide particles and a precious metal supported on the metal oxide particles, wherein the exhaust-gas purifying catalyst is characterized in that the Rh content of the lower layer is equal to or less than 0.25 g/L, and also that the particle-size distribution of the ceria-based oxide particles in the lower layer, which is obtained by scanning electron microscopy, has a first peak in which the peak top thereof is in a region of 0.90-6.50 ?m and a second peak in which the peak top thereof is in a region of 9.50-34.0 ?m.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: June 30, 2020
    Assignee: CATALER CORPORATION
    Inventors: Takara Misumi, Satoshi Matsueda
  • Patent number: 10690031
    Abstract: A method for treating exhaust gas emitted by an internal combustion engine (ICE) in a hybrid architected motor vehicle with an electric motor. The method includes disposing a heater in the exhaust, disposing a first Lean NOx Trap (LNT) downstream of the heater, disposing a second LNT downstream of the first LNT, disposing a passive selective catalytic reduction (SCR) downstream of the second LNT, disposing a hydrocarbon oxidation catalyst downstream of the SCR. The method also includes connecting a controller to the heater, the controller executes a method of controlling the NOx emissions of the ICE, the method includes monitoring a torque demand for the vehicle, determining if the torque demand is large enough to cause the ICE to generate excessive NOx, operating the ICE at a torque less than the torque demand, and operating the motor with the ICE to provide sufficient torque to satisfy the torque demand.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 23, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Eduardo Jose Barrientos Betancourt, Roberto Romanato, Francesco Bechis, Francesco Concetto Pesce, Jaime Andres Cespedes Garcia
  • Patent number: 10677122
    Abstract: Methods and systems are provided for regenerating and purging a particulate filter of an exhaust treatment system for a combustion engine. In one example, a method may include flowing exhaust gas in a reverse direction through the particulate filter to purge particulate matter to an intake manifold of the engine for combusting. The duration of purging may be based on a regeneration achieved during a previous regeneration of the particulate filter during a deceleration fuel shut-off event.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: June 9, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Douglas Raymond Martin, Tyler Kelly, John Eric Rollinger
  • Patent number: 10584624
    Abstract: A method for correcting for aging in particulate matter sensors for a diesel engine includes calculating calculated particulate matter values for a modeled diesel engine exhaust system over a period of time, measuring measured test particulate matter values with a test particulate matter sensor over the period of time in a test diesel engine exhaust system, determining differences between the calculated particulate matter values and the measured test particulate matter values from the test particulate matter sensor over the period of time, and correcting measured particulate matter values in at least one other particulate matter sensor over a same period of time based on the determined differences to obtain a corrected particulate matter value. A particulate matter sensor arrangement and a vehicle including a particulate matter sensor arrangement are also provided.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: March 10, 2020
    Assignee: Volvo Truck Corporation
    Inventor: Heath Morris
  • Patent number: 10563556
    Abstract: Methods and systems are provided for an exhaust gas arrangement. In one example, a system includes a lean-NOx trap arranged upstream of a selective-catalytic reduction device with an air supply device positioned to inject air therebetween, wherein the air supply device is activated in response to an exhaust gas being rich and an exhaust gas temperature exceeding a limit temperature.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 18, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Maria Armiento, Jan Harmsen, Mario Balenovic, Robert Ukropec, Christian Nederlof
  • Patent number: 10550781
    Abstract: Methods and systems are provided for monitoring a change in exhaust particulate filter (PF) soot load during an engine non-combusting condition. In one example, a method may include, responsive to a higher than threshold PF temperature immediately prior to an engine shutdown, estimating a rate of soot burn when the engine is no longer combusting, and estimating a soot load on the PF during and at an onset of immediately subsequent engine start based in part on the rate of soot burn.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 4, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Nikodem Suchta, Jacqueline A. Lymburner
  • Patent number: 10538236
    Abstract: A control apparatus for a hybrid construction machine includes an engine, a motor generator driven by the engine and capable of generating electric power, a hydraulic pump driven by total torque of the engine and the motor generator, a power storage device, an inverter, a filter that collects a particulate material in exhaust gas of the engine, and a control section outputting a command signal for controlling powering operation or regeneration operation of the motor generator. The control apparatus further includes a powering operation limitation section that inputs thereto an ordinary torque command calculated by a torque command value calculation section and a demand signal for regeneration of the filter decided by a filter regeneration decision section and calculates the command signal in response to the input signals. When a filter regeneration demand signal is available, a command signal for limiting the powering operation of the motor generator is calculated.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: January 21, 2020
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shinji Ishihara, Masatoshi Hoshino
  • Patent number: 10502119
    Abstract: Methods of operating an internal combustion engine that has two exhaust paths, the first path having an aftertreatment system. One method includes: operating the engine at idle; directing the exhaust flow through the first exhaust path; detecting an exhaust temperature below a predetermined temperature and/or operation of the engine at idle; and diverting all, or some, of the exhaust flow through the second exhaust path, based on the detecting. Another method includes detecting an engine condition that is indicative of an oil accumulation above a threshold and diverting the exhaust flow through the second exhaust path, based on detecting this engine condition. An exhaust subsystem that includes a controller that employs these methods is disclosed.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 10, 2019
    Assignee: GE Global Sourcing LLC
    Inventor: Adam Edgar Klingbeil
  • Patent number: 10465623
    Abstract: The hybrid vehicle is provide with the control device configured to permit fuel cutoff of the engine when the SOC of the power storage device is greater than a first predetermined ratio, an amount of particulate matter deposited on the filter is less than a first predetermined amount, or a temperature of the filter is lower than a predetermined temperature. The control device is configured to set the allowable upper-limit ratio of the SOC: to a second predetermined ratio greater than the first predetermined ratio when the PM amount is less than a second predetermined amount less than the first predetermined amount, and to a third predetermined ratio equal to or less than the first predetermined ratio when the PM amount is equal to or greater than the second predetermined amount.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: November 5, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Rina Yokoi, Takashi Suzuki
  • Patent number: 10436097
    Abstract: An aftertreatment system includes a filtration and reduction unit. The filtration and reduction unit comprises a housing defining an internal volume. A filter is disposed in the internal volume and is configured to substantially remove particulates from the exhaust gas. A selective catalytic reduction system is disposed in the internal volume downstream of the filter and is configured to selectively reduce a portion of the exhaust gas. A first catalyst is formulated to oxidize at least a portion of the exhaust gas. An intake pipe is disposed upstream of the filtration and reduction unit and configured to communicate the exhaust gas to the filtration and reduction unit. The first catalyst is disposed in the intake pipe. An exhaust pipe is disposed downstream of the filtration and reduction unit.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 8, 2019
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Yi Liu, Qiang Liu, Arvind V. Harinath, Changsheng C. Su, Behnam Bahrami, A. Carl McDonald, Stephen M. Holl
  • Patent number: 10436087
    Abstract: Methods and systems are provided for a heat exchanger phase change material installed as a component of a variable exhaust tuning system. In one example, a method may include absorbing excess heat energy from exhaust gases during and after an engine-on event within a heat exchanger material, releasing heat energy stored in the heat exchanger material during and after an engine-off event, and heating an adjustable exhaust valve with the heat energy stored in the heat exchanger material.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 8, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Roy Jentz, Sanyam Sharma, Sumanth Dadam
  • Patent number: 10378411
    Abstract: The present disclosure is directed at a dosing method and apparatus for treatment of reductant urea solutions with water soluble organometallic catalyst precursors which convert to active catalyst compounds in diesel exhaust gas systems. The active catalysts then promote hydrolysis of isocyanic acid into ammonia and/or decomposition of relatively high molecular weight deposits which deposits may otherwise reduce selective catalytic reduction efficiency.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: August 13, 2019
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Cary A. Henry, Ryan C. Hartley
  • Patent number: 10352220
    Abstract: The exhaust gas stirring device comprises a cylindrical frame on an inner surface of a flow path member forming an exhaust flow path; supporting parts arranged to radially reach across the frame; a shielding part shielding a central axis of the frame and its circumference in the axis direction of the frame. One of the supporting parts comprises a pair of first skeletons extending radially outwardly from the central axis of the frame. The frame and the supporting parts are configured by assembling assembling members. One of the assembling members comprises the pair of first skeletons, and second skeletons respectively extending in an arc shape from one end of each of the first skeletons and constituting a part of the frame. Each of the first skeletons and the second skeletons in the assembling members comprises a vane part formed to protrude respectively from each of the first and second skeletons.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 16, 2019
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventor: Yoshinobu Nagata
  • Patent number: 10344647
    Abstract: Provided are a method and a system for treatment of an exhaust stream, from a combustion engine comprising nitrogen oxides. An estimate of at least one future operating condition for the exhaust treatment system is determined based on a road section ahead of the vehicle. A first additive is input into the exhaust stream to cause a first reduction of nitrogen oxides in a first reduction catalyst device. A second additive is input into the exhaust stream to cause a second reduction of a second amount of nitrogen oxides in a second reduction catalyst device, arranged downstream of the first reduction catalyst device. The first supply of additive is controlled based on the estimated at least one future operating condition, such that the first reduction catalyst device is exposed, over time, to a substoichiometric condition, with respect to the first additive and the first amount of nitrogen oxides.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 9, 2019
    Assignee: Scania CV AB
    Inventor: Magnus Nilsson
  • Patent number: 10344458
    Abstract: A hydraulic drive system 100A for a work machine includes: a boom cylinder 4; an arm cylinder 8; a hydraulic pump device 51; a control valve 5; a regenerative device 61; a first operation device 41; a second operation device 42; a sensor device 71; and a controller 27. The sensor device 71 includes at least one of pressure sensors 23, 24, 25, and 26. The controller 27 includes an abnormality detection part 142 and a first control part. The abnormality detection part 142 determines whether or not the sensor device 71 is abnormal. If the sensor device 71 is abnormal, the first control part controls the regenerative device 61 such that the hydraulic fluid returning from the boom cylinder 4 is not supplied to the arm cylinder 8 even if the values measured by the sensor device 71 satisfy regenerative conditions.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: July 9, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Seiji Hijikata, Kouji Ishikawa, Shinya Imura
  • Patent number: 10337381
    Abstract: The invention relates to an exhaust gas aftertreatment device for an internal combustion engine, where the device comprises: an exhaust duct allowing a through-flow of exhaust gas; a catalytic NOx converter arranged in the exhaust duct; and a fluid inlet arranged to introduce a liquid reductant into or onto a structure in the exhaust duct upstream the catalytic NOx converter. The invention is characterized in that the structure is a sorption structure having pores configured to retain the liquid reductant in liquid form until it evaporates. The invention also relates to a vehicle provided with such a device.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 2, 2019
    Assignee: VOLVO CAR CORPORATION
    Inventors: Marie Stenfeldt, Peter Sandberg, Rakshith Ramachandra
  • Patent number: 10309285
    Abstract: An exhaust gas control system for an internal combustion engine, before execution of a filter regeneration process, executes a pre-regeneration process that is a process of raising a temperature of a filter to a second target temperature lower than a first target temperature and increasing the concentration of NO2 contained in exhaust gas flowing into the filter for a predetermined period. The first target temperature during execution of the filter regeneration process in the case where a speed of change in a detected value of a differential pressure sensor during execution of the pre-regeneration process is high is set so as to be lower than the first target temperature in the case where the speed of change is low.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daichi Imai, Hiromasa Nishioka, Kiyoshi Fujiwara, Yoshio Yamashita, Kouta Tanaka
  • Patent number: 10302000
    Abstract: An exhaust gas control system for an internal combustion engine, before execution of a filter regeneration process, executes a pre-regeneration process that is a process of raising a temperature of a filter to a second target temperature lower than a first target temperature and increasing the concentration of NO2 contained in exhaust gas flowing into the filter for a predetermined period. An execution time of the filter regeneration process when a physical quantity that correlates with a speed of change in a detected value of a differential pressure sensor during execution of the pre-regeneration process is large is shorter than an execution time of the filter regeneration process when the physical quantity is small.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: May 28, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daichi Imai, Hiromasa Nishioka, Kiyoshi Fujiwara, Yoshio Yamashita, Kouta Tanaka
  • Patent number: 10280824
    Abstract: An exhaust system includes a particulate filter, a variable valve, and a controller communicatively connected to the variable valve. The controller is operative to determine a backpressure caused by the particulate filter in the exhaust system, and control a position of the variable valve as a function of the backpressure caused by the particulate filter.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 7, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Glenn Pietila, John Pierce, III, Gerald J. Clark
  • Patent number: 10273858
    Abstract: A system can include an engine, an aftertreatment system with a particulate filter, and a controller. The controller is configured to compare a time value since a last delta pressure soot load estimate process to a predetermined time threshold. Responsive to the time value being greater than or equal to the predetermined time threshold, the controller decreases a flow threshold value to a lower flow threshold value. If the flow amount is greater than or equal to the lower flow threshold value, then the controller activates a delta pressure soot load estimation process. A combined soot load estimate is then calculated using a delta pressure soot load estimation of the delta pressure soot load estimate process responsive to the lower flow threshold value.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: April 30, 2019
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Tony J. Hall, Yinghuan Lei, Weiwen Wang, Daniel D. Wilhelm
  • Patent number: 10222303
    Abstract: A dual spray chamber apparatus is described. In one or more implementations, the dual spray chamber apparatus includes a first cyclonic spray chamber for receiving an aerosol and conditioning the aerosol to separate a first conditioned portion of the aerosol from a second portion of the aerosol. The first cyclonic spray chamber defines a first chamber interior and comprises an input port in fluid communication with the first chamber interior. The dual spray chamber apparatus also includes a second spray chamber coupled with the first cyclonic spray chamber for receiving the first conditioned portion of the aerosol and further conditioning the first conditioned portion of the aerosol. The second spray chamber defines a second chamber interior and comprises an output port for expelling a first further conditioned portion of the first conditioned portion of the aerosol from the second chamber interior.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: March 5, 2019
    Assignee: ELEMENTAL SCIENTIFIC, INC.
    Inventors: Daniel R. Wiederin, Kyle W. Uhlmeyer, James W. Harris
  • Patent number: 10221740
    Abstract: An exhaust gas post treatment system for an internal combustion engine, in particular a heavy fuel oil-powered engine, including an SCR catalyst, using ammonia as a reducing agent for the denitration of the exhaust gas, and a device positioned upstream of the SCR catalyst by which ammonia or an ammonia precursor substance, which is converted to ammonia, is introduced upstream of the SCR catalyst. Downstream of the SCR catalyst an exhaust gas scrubber is positioned, by which excess ammonia, contained in the exhaust gas leaving the SCR catalyst, together with sulfur oxides, can be scrubbed out of the exhaust gas forming ammonium salts while maintaining a pH value of approximately 6. For the control thereof, a bypass around the SCR catalyst can be provided as a westgate, or comprising an additional SCR catalyst.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 5, 2019
    Assignee: MAN Energy Solutions SE
    Inventor: Andreas Döring
  • Patent number: 10161281
    Abstract: The present disclosure provides an exhaust purification system including: an engine; a lean NOx trap (LNT) mounted on an exhaust pipe and enable to absorb nitrogen oxide (NOx) contained in an exhaust gas at a lean air/fuel ratio, or to release the absorbed NOx at a rich air/fuel ratio; a selective catalytic reduction (SCR) catalyst provided downstream of the LNT so as to reduce the NOx contained in the exhaust gas; a controller to perform denitrification (DeNOx) by using the LNT and/or the SCR catalyst based on a driving condition of the engine; a first oxygen sensor disposed between the engine and the LNT to detect an oxygen amount in the exhaust gas; a second oxygen sensor disposed between the LNT and the SCR catalyst to detect an oxygen amount in the exhaust gas exhausted from the LNT; and an air injection device selectively injecting air into the exhaust pipe.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 25, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Jin Woo Choung
  • Patent number: 10138777
    Abstract: Methods for evaluating a soot quantity accumulated in a selective catalytic reduction wash-coated particulate filter (SCRF) of an exhaust gas treatment system are provided, and include injecting reductant proximate the SCRF, determining one or more mapping values, computing a correction value of a soot quantity using a map correlating the one or more mapping values, detecting an apparent soot burning operating temperature, and correcting an estimated value of the soot quantity using the correction value in order to obtain an evaluated value of the soot quantity. The one or more mapping values can include a reductant injection quantity value, a NOx quantity value, a temperature value, and a mass flow value of an exhaust gas. The apparent soot burning operating temperature can comprise a temperature at which a ?P across the SCRF improperly implies an actual soot burning. Further provided are apparatuses for performing the disclosed methods.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: November 27, 2018
    Inventors: Luciano Nunziato Di Perna, Stefano Pellegrino, Isadora Ricci
  • Patent number: 10138834
    Abstract: A diesel engine system comprises a particulate filter interposed in an exhaust line and a plurality of fuel injectors associated with an engine. When a quantity of particulate accumulated within said filter is estimated to be greater than a threshold, a control mode of the injectors is activated causing an automatic regeneration of the filter, by increasing a temperature of exhaust gases fed to the filter sufficient for burning the particulate within the filter. A statistical model is applied which estimates the quantity of particulate accumulated in the filter per time unit The estimation of the particulate accumulated in the filter is corrected after each regeneration of the filter, on a basis of a comparison between the real variation of said temperature during the regeneration as detected by a sensor and a stored reference variation of said temperature previously detected empirically during a regeneration with the filter being empty.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: November 27, 2018
    Assignee: Fiat Group Automobiles S.p.A.
    Inventor: Danilo Garombo
  • Patent number: 10138788
    Abstract: A lattice board is obliquely arranged in a bent portion halfway in an exhaust pipe where exhaust gas flows curvedly so as to bisect an angle made by inflow and outflow directions the exhaust gas entered upstream of and discharged downstream of the bent portion, respectively. An injector is arranged in the outflow direction of the exhaust gas to inject urea water to an entry side of the lattice board such that flow passage walls of the lattice board on which hit is the exhaust gas from upstream has rear surfaces on which hit is a spray of urea water from the injector.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: November 27, 2018
    Assignee: HINO MOTORS, LTD.
    Inventors: Hirofumi Tongu, Tomoyuki Tsuruta