Exhaust Gas Diverted From Reactor Or Treating Agent Mixer Patents (Class 60/288)
  • Patent number: 10300435
    Abstract: An ammonia generation apparatus is disposed in a stage after a urea water injection unit. The ammonia generation apparatus includes a main body which has an introduction opening for introducing exhaust gas, a discharge opening for discharging the exhaust gas, a first flow passage and a second flow passage which communicate with the introduction opening and the discharge opening and which are separated from each other. The ammonia generation apparatus includes a heating unit disposed in the first flow passage, and a first changeover section which is disposed on one side of the main body where the introduction opening is provided and which can switch the exhaust gas flow passage between the first flow passage and the second flow passage.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: May 28, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Takaya Yoshikawa, Kentaro Mori, Hiroyuki Suzuki
  • Patent number: 10260393
    Abstract: An object is to prevent abrasion inside an addition valve and clogging of the addition valve due to an increase in the particle diameter of precipitates. A first control is performed by which a pump is caused to operate in such a way as to return urea solution contained in the addition valve and a urea solution channel to a tank by a predetermined quantity. After the lapse of a certain time after the end of the first control, a second control is performed by which the pump is caused to operate in such a way as to return the urea solution remaining in the addition valve and the urea solution channel thoroughly to the tank.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 16, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihisa Tsukamoto, Hirotaka Saitoh, Yuriko Hagimoto, Junichi Matsuo, Yasumasa Notake
  • Patent number: 10221805
    Abstract: A controller for an internal combustion engine includes a detector and a processor. The detector detects a combustion condition of a gas in a cylinder of the internal combustion engine. The processor is configured to calculate a fuel ratio in the gas in the cylinder. The processor is configured to calculate a target combustion condition according to the fuel ratio. The processor is configured to calculate an ignition timing such that the combustion condition detected by the detector becomes equal to the target combustion condition.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: March 5, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Mitsuhiro Iwadare, Masanobu Takazawa, Haruya Kitano
  • Patent number: 10092897
    Abstract: A catalytic converter includes a hydrocarbon catalyst trap including BEA zeolite configured to adsorb iso-octane at ambient temperatures and desorb iso-octane at temperatures between 150° C. and 170° C., and active metal supercage impregnated USY zeolite configured to adsorb and coke iso-octane at temperatures greater than 150° C.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 9, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Lifeng Xu, Giovanni Cavataio, Gang Guo, Jeffrey Scott Hepburn
  • Patent number: 9909476
    Abstract: A method and system for controlling an exhaust gas flow in an engine system are provided. The method includes detecting operating conditions of an engine and operating a valve that is disposed on a line bypassing a catalyst unit based on the operating conditions such that exhaust gas bypasses the catalyst unit. The operating conditions include a vehicle speed, an engine rotation speed, a fuel injection amount, an accelerator pedal signal, a coolant temperature, or a lambda value of exhaust gas.
    Type: Grant
    Filed: May 2, 2015
    Date of Patent: March 6, 2018
    Assignee: Hyundai Motor Company
    Inventor: Kihoon Nam
  • Patent number: 9863297
    Abstract: An emission treatment system and method for remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams are described. The emission treatment system has an oxidation catalyst upstream of a soot filter upstream from a NOx reducing catalyst.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: January 9, 2018
    Assignee: BASF Corporation
    Inventors: Kevin A. Hallstrom, Sanath V. Kumar, Susanne Stiebels, Marius Vaarkamp
  • Patent number: 9816418
    Abstract: A method for operating a device that conveys a fluid includes: A) detecting activation of the device; B) filling a conveying line with the fluid by operating at least one pump in a conveying direction from at least one tank to at least one injector, and detecting complete filling of the conveying line based on at least one sudden pressure increase at at least one pressure sensor; C) operating the pump and making available fluid at the injector; D) detecting deactivation of the device; and E) partially emptying the conveying line by sucking back the fluid by operation of the at least one pump in a direction counter to the conveying direction. The emptying is stopped if pressure measured at the at least one pressure sensor corresponds to an ambient pressure.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: November 14, 2017
    Assignee: Continental Automotive GmbH
    Inventors: Jan Hodgson, Christian Vorsmann, Rolf Brück
  • Patent number: 9784200
    Abstract: An exhaust purification system includes: a diesel oxidation catalyst (DOC) provided on an exhaust passage of an engine; a diesel particulate filter (DPF) provided on the exhaust passage at a position downstream of the DOC to collect particulate matter contained in exhaust gas; electrodes that detect a capacitance of the DOC; a particulate matter accumulation estimating unit that estimates an amount of particulate matter accumulated in the DPF on the basis of the detected capacitance; and a forced regeneration control unit that injects fuel into the DOC and performs forced regeneration that burns and removes at least the particulate matter accumulated in the DPF when the estimated accumulated particulate matter amount surpasses a predetermined amount.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: October 10, 2017
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tadashi Uchiyama, Hidekazu Fujie, Naoto Murasawa, Satoshi Hanawa
  • Patent number: 9604634
    Abstract: An apparatus for activating a catalyst of a hybrid vehicle may include: an engine including a plurality of cylinders, at least one intake valve and at least one exhaust valve, a variable valve apparatus adjusting lift and opening timing of the intake valve and exhaust valve, an integrated starter-generator, a driving information detector detecting driving information including a vehicle speed, a displacement of an accelerator pedal, and a displacement of a brake pedal, an exhaust gas purification apparatus, and a controller cutting off fuel supplied into the cylinder, opening the exhaust valve by using the variable valve apparatus during a suction stroke, and generating electrical energy through the integrated starter-generator when a regenerative braking condition of a hybrid vehicle is satisfied from the driving information detected by the driving information detector.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: March 28, 2017
    Assignee: Hyundai Motor Company
    Inventor: Myung Jun Lee
  • Patent number: 9523300
    Abstract: An electronic control unit estimates the amount of sulfur accumulated in a filter for purifying PM and NOx based on the operating state of an engine. When an estimated value is equal to or greater than a predetermined determination value, a first regeneration procedure is executed, in which sulfur is released from the filter by raising the temperature of the filter up to a first predetermined temperature and lowering the exhaust air-fuel ratio. When predetermined conditions are met the second regeneration procedure is executed separately from the first regeneration procedure. In the second regeneration procedure, sulfur is completely released from the filter by raising the temperature of the filter up to a temperature higher than the first temperature and lowering the exhaust air-fuel ratio. The estimated value is reset upon completion of the second regeneration procedure.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: December 20, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideyuki Handa
  • Patent number: 9388756
    Abstract: A method of controlling a charging pressure of an internal combustion engine having a particle filter for the treatment of exhaust gases, wherein the charging pressure is controlled to achieve a nominal charging pressure value and wherein the nominal charging pressure value is set as a function of operating parameters, wherein there is determined a first value for a charging pressure minimizing a fuel consumption, taking into account a direct influence of the charging pressure on the fuel consumption of an internal combustion engine; as well as an internal combustion engine having a particle filter for the treatment of exhaust gases, using such a control method.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: July 12, 2016
    Assignee: FEV GmbH
    Inventors: Thorsten Schnorbus, Joschka Schaub
  • Patent number: 9353669
    Abstract: An error releasing device for a work vehicle to release an error related to an exhaust gas treatment system when the error related to the exhaust gas treatment system has occurred includes: an input unit configured to input at least temporary input information; an authentication unit including a processing algorithm common with a processing algorithm of an external device that generates the temporary input information, and configured to authenticate the input temporary input information by using the processing algorithm; and an error release processing unit configured to release the error related to the exhaust gas treatment system when the temporary input information acquired from the external device by using inquiry information obtained through a predetermined operating procedure is input and further the temporary input information is authenticated by the authentication unit.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: May 31, 2016
    Assignee: Komatsu Ltd.
    Inventors: Hayato Matsumoto, Mitsuhiro Shimazu
  • Patent number: 9346014
    Abstract: The present disclosure relates to an exhaust gas after-treatment apparatus and an exhaust gas after-treatment method including a selective catalytic reduction (SCR) process, and more particularly, to an exhaust gas after-treatment apparatus having improved durability and an exhaust gas after-treatment method, which selectively determine to operate a selective catalyst reducing part and an ammonia oxidation catalyst (AOC) part on the basis of a generated amount and a rate of change of a nitrogen compound (NOx) in exhaust gas.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: May 24, 2016
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Ji Hoon Lim, Min Seok Ko, Byoung Gul Oh, Kyung Min Park, Sang Hoon Kim
  • Patent number: 9328643
    Abstract: A selective catalytic reduction (SCR) system that can prevent fixation of urea solution to an interior of a dosing valve when the urea solution is not injected through the dosing valve. An SCR system closes a dosing valve when the exhaust gas temperature is lower than a temperature at which an SCR catalyst becomes active and is provided with a fixation prevention system that opens the dosing valve and controls a supply module to feed the urea solution in the dosing valve back to a urea tank to prevent fixation of the urea solution to the interior of the dosing valve, when the exhaust gas temperature is equal to or higher than a temperature at which the urea solution crystallizes and lower than the temperature at which the SCR catalyst becomes active.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: May 3, 2016
    Assignee: Isuzu Motors Limited
    Inventors: Takao Onodera, Hiroyuki Oohira, Masanobu Minezawa
  • Patent number: 9238468
    Abstract: Various methods and systems are provided for a system for an engine. In one example, the system includes an exhaust passage through which exhaust gas is configured to flow from the engine. The system further includes an aftertreatment system disposed in the exhaust passage, the aftertreatment system including an aftertreatment device and a bypass with a bypass control element, the bypass control element adjustable to reduce exhaust gas flow through the aftertreatment device during tunneling operation.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: January 19, 2016
    Assignee: General Electric Company
    Inventors: Lawrence Hoey Heverley, III, Shashi Kiran, Stephen Mark Geyer
  • Patent number: 9163592
    Abstract: A vapor gas discharging apparatus for a hybrid electric vehicle (HEV), which includes a vapor line disposed between a canister and a fuel tank, wherein a purge line may be connected to the canister for transferring vapor gas from the canister to an engine, may include a discharging nipple formed to the canister and employed to supply air to the canister, an air supply line connected to the discharging nipple of the canister for supplying the air to the discharging nipple, a two-way valve connected to an end of an exhaust pipe and an end of the air supply line, and controlled for selectively communicating air flow between the air supply line and the exhaust pipe or between the air supply line and the outside of the air supply line, and a conduction member disposed in the air supply line between the two-way valve and the discharging nipple.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: October 20, 2015
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Changhyun Kim
  • Patent number: 9120489
    Abstract: Various methods and systems for an engine are provided. In one example, an engine system includes an exhaust passage through which exhaust gas is configured to flow from the engine, and a turbocharger with a turbine positioned in the exhaust passage. The engine system further includes an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine, the exhaust gas treatment system including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: September 1, 2015
    Assignee: General Electric Company
    Inventor: Manoj Gokhale
  • Patent number: 9120057
    Abstract: The invention relates to a method for purifying exhaust gas in vehicles with internal combustion engines. The method is characterized in that exhaust gas coming from the engine (1) is then led past the catalyst(s) (4) near the engine when the engine of the vehicle is not performing positive work.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 1, 2015
    Assignee: UMICORE AG & CO. KG
    Inventor: Stefan Eckhoff
  • Patent number: 9109488
    Abstract: An apparatus includes an engine output module that determines an engine output power parameter for an engine. The apparatus includes an output power threshold module that determines if the engine output power parameter is below an output power threshold. The apparatus includes a NOx module that determines a nitrogen oxide (“NOx”) efficiency of a selective catalytic reduction (“SCR”) system in response to the output power threshold module determining that the determined engine output power parameter is below the output power threshold. The SCR system is in exhaust receiving communication with the engine. The apparatus includes a NOx threshold module that determines if the NOx efficiency is below a NOx efficiency threshold, and a NOx warning module that sends a NOx alarm signal in response to the NOx threshold module determining that the NOx efficiency is below the NOx efficiency threshold.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: August 18, 2015
    Assignee: Cummins IP, Inc.
    Inventor: Tony James Hall
  • Patent number: 9103255
    Abstract: Methods and systems are provided for controlling an engine in a vehicle, the engine having a turbocharger, and a particulate filter upstream of a turbocharger turbine. In one example, the method comprises, under selected boosted operating conditions, injecting a reductant upstream of the filter during an exhaust stroke to generate an exothermic reaction at the filter.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: August 11, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Jeffrey Scott Hepburn, William Charles Ruona, Brien Lloyd Fulton, Gopichandra Surnilla, Eric Matthew Kurtz
  • Patent number: 9060387
    Abstract: An object of the invention is to control the penetration of condensed water into an insulation member or a heater element in an electric heating catalyst (EHC). The EHC according to the invention includes a heater element that generates heat by supply of electric current to heat a catalyst, a casing that houses the heater element, an insulation member provided between the heater element and the casing to provide electric insulation, and an electrode connected to the heater element through an electrode chamber, which is a space located between the inner wall surface of the casing and the outer circumferential surface of the heater element. The EHC is further provided with a bypass passage, one end of which is connected to a bottom part of the casing at a position upstream of the upstream end face of the insulation member. The bypass passage bypasses the insulation member.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: June 16, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mamoru Yoshioka, Noriaki Kumagai, Naoya Takagi
  • Patent number: 9051874
    Abstract: A system is provided for an internal combustion engine comprising, at least two cylinders wherein the at least two cylinders form at least two groups, wherein each group comprises at least one cylinder, the at least one cylinder of at least one group being formed as a cylinder which can be activated in a load-dependent manner and which is deactivated if a predefined load is undershot. The at least two groups are characterized by different compression ratios, the at least one cylinder of a first group having a higher compression ratio and the at least one cylinder of a second group having a lower compression ratio and the at least one cylinder of the second group comprises an activatable and deactivatable cylinder. Use of the first cylinder group, and deactivation of the second cylinder group during partial loads increases engine efficiency and fuel economy.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: June 9, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Moritz Klaus Springer, Helmut Hans Ruhland, Albert Breuer, Thomas Lorenz, Jan Linsel
  • Publication number: 20150128571
    Abstract: A method for protecting an exhaust aftertreatment system of an internal combustion engine from deterioration by selectively diverting exhaust gasses from the engine away from a component of the exhaust aftertreatment system includes assessing a status of an operating condition associated with a physical condition of the component of the internal combustion engine. The status of the operating condition is compared with a threshold value that corresponds with deterioration of the physical condition of the component. A valve upstream of the component is moved to a first position to open a bypass fluid path directing exhaust gasses around the component when the status of the operating condition meets the threshold value to reduce deterioration of the component. The valve is moved to a second position to close the bypass fluid path thereby directing exhaust gasses to the component when the status of the operating condition does not meet the threshold.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Applicant: CUMMINS IP, INC.
    Inventor: Gregory BENTLEY
  • Patent number: 9016046
    Abstract: A method, comprising purging a storage catalytic converter of stored NOx by diverting only a portion of incoming exhaust flow around the catalytic device while increasing injection of reductant to the storage catalytic converter; and responsive to the diverting, adjusting injection of an ammonia-containing fluid into recombined exhaust flow upstream of an SCR catalytic converter. Bypass of the storage catalytic converter reduces available oxygen and air flow through the storage catalytic converter, providing a more advantageous environment for reduction of NOx in the storage catalytic converter.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: April 28, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Jan Harmsen, Frank Linzen
  • Patent number: 8997464
    Abstract: A waste heat recovery system with an integrated hydrocarbon adsorber for a vehicle having an internal combustion engine that generates exhaust gas containing hydrocarbons, and a catalytic converter, includes an exhaust gas conduit, an exhaust gas heat exchanger, a heat exchanger bypass valve, a coolant circuit with a coolant bypass and a coolant bypass valve, and a controller. The exhaust gas heat exchanger includes at least one channel through which the exhaust gas is flowable, the channel having an interior surface coated with a hydrocarbon adsorbing material configured to adsorb hydrocarbons. The heat exchanger and coolant bypass valves are configured to selectively direct at least a portion of the exhaust gas and the coolant, respectively, to the exhaust gas heat exchanger or to bypass it. They are controlled by the controller such that the hydrocarbons in the exhaust gas are selectively adsorbable by and desorbable from the coating.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 7, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Halim G. Santoso, Eugene V. Gonze, Chang H. Kim
  • Patent number: 8984868
    Abstract: An exhaust system for a machine is disclosed. The exhaust system may have a diffuser configured to receive exhaust from an engine. The exhaust system may further have a plurality of dosers associated with the diffuser and configured to inject fuel into the diffuser. The exhaust system may also have a controller configured to selectively control an amount of fuel injected by each of the plurality of dosers based on a velocity of the exhaust adjacent to each doser. In addition, the exhaust system may have an after-treatment component fluidly connected downstream of the diffuser and configured to heat the exhaust by oxidizing the injected fuel.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: March 24, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Ajay Patel, Pradeep K. Ganesan
  • Patent number: 8984864
    Abstract: An exhaust system for treating exhaust gas from an internal combustion engine is disclosed. The system comprises a three-way catalyst (TWC), a fuel reformer catalyst located downstream of the TWC, and a fuel supply means located upstream of the fuel reformer catalyst. The exhaust gas is split into two portions. The first portion of the exhaust gas bypasses the TWC and contacts the fuel reformer catalyst in the presence of fuel added from the fuel supply means, and is then recycled back to the engine intake. The second portion of the exhaust gas is contacted with the TWC and is then utilized to heat the fuel reformer catalyst before being expelled to atmosphere. The exhaust system allows for maximum heat exchange from the exhaust gas.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 24, 2015
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Kirsty Ellen Cockle, Paul James Millington, Edward James Richard Moss, John Frederick Pignon
  • Patent number: 8959901
    Abstract: A metal-gas battery that utilizes an exhaust gas stream from a combustion engine as reactive gases is provided. Almost constant concentration of exhaust gases are supplied to the metal-gas battery via an existing engine systematic combustion system. The systematic combustion system keeps a definite air fuel mixture (A/F) that acts to enhance the fuel efficiency of the vehicle, and the metal-gas battery leverages the existing vehicle air management system. Exhaust heat of the exhaust gases is sometimes utilized for the heat control of the vehicle, and then the cooled exhaust gases are introduced into the metal-air battery to be consumed during a cathode reduction reaction to create and store electrical energy. The metal-gas battery supports the cleaning of exhausted gases using existing emission catalysts.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: February 24, 2015
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Paul T. Fanson
  • Patent number: 8955307
    Abstract: In an ordinary mode, when an abnormality diagnosis of a PM sensor attached to a downstream opening downstream of a filter is performed, the PM sensor is moved to a first upstream opening upstream of the filter, and an exhaust gas is discharged from an engine. An ECU stores a program for the abnormality diagnosis. In an abnormality diagnosis mode, the ECU diagnoses the PM sensor by comparing an output value of the PM sensor to a standard output after performing the program. The first upstream opening may be closed by a cover in the ordinary mode.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: February 17, 2015
    Assignee: Denso Corporation
    Inventors: Shigeto Yahata, Tomohiro Ueno
  • Patent number: 8943806
    Abstract: In a working gas circulation engine, water vapor contained in exhaust gas after combustion is separated and removed at higher efficiency as compared with the conventional technology, the influence of remaining water vapor is prevented from reducing the ratio of specific heats of working gas and deteriorating the thermal efficiency of the engine. A working gas circulation engine which comprises a circulation passage part which connects an inlet port communicated to a combustion chamber and an exhaust port communicated to the combustion chamber in the exterior of the combustion chamber, supplies fuel, oxygen, and working gas to the combustion chamber to burn the fuel in the combustion chamber, and supplies the working gas contained in the exhaust gas discharged through the exhaust port from the combustion chamber to the combustion chamber through the circulation passage part and the inlet port.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: February 3, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Rentaro Kuroki, Daisaku Sawada, Akira Kato
  • Patent number: 8943807
    Abstract: The present invention relates to a method for achieving reduced emissions at cold start of an internal combustion engine having an exhaust gas after treatment system comprising at least one Diesel Oxygen Catalyst (DOC), at least one Diesel Particulate Filter (DPF) and a Selective Catalytic Reduction (SCR) unit, comprising the steps of: heating the DOC prior to cold starting said internal combustion engine, starting and controlling the internal combustion engine towards low NOx emission when said DOC has reached a predetermined temperature, optimizing the fuel consumption at a given total emission level when said DPF and SCR has reached a predetermined temperature.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 3, 2015
    Assignee: Volvo Lastvagnar AB
    Inventors: Lennart Andersson, Bert-Inge Bertilsson
  • Patent number: 8938948
    Abstract: A diesel engine exhaust aftertreatment system and method of use. The system and method combine the attributes of lean or stoichiometric operation, using multiple LNTs (lean NOx traps) with one being capable of acting both as a lean NOx trap and a three-way catalyst. The engine is operated with lean air-to-fuel ratios during times that LNT treatment can efficiently reduce NOx from the exhaust gas. During times that lean NOx treatment is ineffective, the diesel engine is operated at or near a stoichiometric air-fuel ratio, so that three-way catalyst treatment can be used.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: January 27, 2015
    Assignee: Southwest Research Institute
    Inventors: Charles E. Roberts, Jr., Christopher J. Chadwell
  • Patent number: 8904771
    Abstract: An exhaust heat recovery apparatus for a vehicle, may include a case having an inlet and an outlet, a heat exchange part mounted in the case, the heat exchange part, a bypass tube connecting the inlet and the outlet of the case in the case, having an inflow opening for the inflow of the exhaust gas to the heat exchange part, and allowing an exhaust gas to bypass the heat exchange part, and a variable valve installed in the bypass tube to selectively block flow of the exhaust gas through the bypass tube and induce the exhaust gas to the heat exchange part, wherein the heat exchange part includes a coolant distribution member having a plurality of coolant paths connected to and spaced apart from each other between the bypass tube and the case, and a lubricant distribution member installed in one of the coolant paths and in which the lubricant flows.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: December 9, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Sejong Industrial Co., Ltd.
    Inventors: Jong Seung Won, Jongho Seon, Jaesan Kim, Sung Soo Chae, Jin-Yong Park, Jong-Yun Moon, Jin-Yong Kim
  • Patent number: 8904764
    Abstract: The invention relates to a method for feeding thermal energy into an exhaust emission control unit (2) connected in the exhaust gas system of an internal combustion engine by heating the exhaust gas flowing to the exhaust emission control unit (2). Said exhaust gas is heated to a SET temperature. In said method, the exhaust gas discharged from the internal combustion engine is heated to the SET temperature by converting hydrocarbons (HCs) metered into the exhaust gas flow at two oxidation catalytic converters (7, 10) series-connected in the flow direction of the exhaust gas.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: December 9, 2014
    Assignee: HJS Emission Technology GmbH & Co. KG
    Inventors: Bettina Baier, Bernd Maurer, Klaus Schrewe, Frank Noack
  • Patent number: 8904763
    Abstract: The invention is an exhaust gas apparatus of an internal combustion engine, in particular of an internal combustion engine with gasoline direct injection. The exhaust gas apparatus includes at least one selective catalytic converter. It is provided that a first catalytic converter is positioned upstream of the selective catalytic converter. The invention also provides a method for the purification of exhaust gas of an internal combustion engine, in an internal combustion engine with gasoline direct injection, for use in such an exhaust gas apparatus. In the method the selective catalytic converter is preceded by a first catalytic converter disposed upstream therefrom.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: December 9, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Thorsten Raatz
  • Patent number: 8899021
    Abstract: A method of dosing a reagent into an exhaust gas stream of an internal combustion engine having an SCR catalyst, the method comprising injecting reagent from a reagent tank into the exhaust gas stream at a position upstream of the SCR catalyst using a reagent injector in accordance with a first dosing schedule in order to remediate a predetermined proportion of NOx in the exhaust gas stream, the first dosing schedule being associated with a first range of engine operating conditions; and injecting reagent from the reagent tank into the exhaust gas stream at a position upstream of the SCR catalyst using a reagent injector in accordance with a second dosing schedule in order to enable heat transfer between the reagent injector and said injected reagent, the second dosing schedule being associated with a second range of engine operating conditions.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: December 2, 2014
    Assignee: Delphi International Operations Luxembourg S.A.R.L.
    Inventors: Philip J. G. Dingle, Martin Paul Hardy, Roman Stefan Zuelch
  • Patent number: 8893472
    Abstract: A cogeneration apparatus includes: an airtight chamber provided within an apparatus casing and constructed to prevent exhaust gas of a prime mover from flowing out therefrom; and a relief valve provided in a water flow path within the airtight chamber and constructed to discharge the exhaust gas, contained in the water flow path, to the airtight chamber.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: November 25, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Koichi Oka, Daiki Kamiyama, Kosuke Yamana, Nobuyuki Sasaki, Hideyuki Ushiyama
  • Patent number: 8887492
    Abstract: In an exhaust gas purification apparatus of an internal combustion engine, there is provided a technique capable of suppressing a reduction in exhaust gas purification performance. The apparatus includes: an exhaust gas purification catalyst (6) that is arranged in an exhaust passage of the internal combustion engine for purifying an exhaust gas; an adsorption device (5) that is arranged at an upstream side of the exhaust gas purification catalyst, rises in temperature up to an upper limit temperature due to heat generated by adsorption thereto of an incoming first component, and falls in temperature after its temperature has reached said upper limit temperature; and a heat generating component supply unit (10) that supplies a second component which generates reaction heat in the exhaust gas purification catalyst, before the temperature of the adsorption device begins to fall.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 18, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuka Nakata, Hiromasa Nishioka, Hiroshi Otsuki, Kohei Yoshida, Takamitsu Asanuma
  • Patent number: 8881508
    Abstract: Systems and method are disclosed in which a portion of an exhaust gas stream is received into an exhaust outlet flow path downstream of a first selective catalytic reduction (SCR) catalyst and upstream of a second SCR catalyst. The removed portion is treated with a diagnostic SCR catalyst element and an NH3 concentration composition of the treated removed portion is determined. The NH3 concentration is used to control injection of reductant upstream of the first SCR catalyst.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: November 11, 2014
    Assignee: Commins Inc.
    Inventor: Mert Geveci
  • Patent number: 8869510
    Abstract: A method for producing an exhaust gas cleaning component having a carrier structure with an inflow side, an outflow side, a predefined through-flow direction and a deflection surface disposed opposite the outflow side, includes at least the following steps: providing the carrier structure, subjecting the carrier structure to an exhaust gas flowing from the inflow side to the outflow side in the predefined through-flow direction, determining a distribution of flow velocities on the outflow side of the carrier structure, and configuring the shape of the deflection surface with at least one backpressure element in dependence on the distribution of flow velocities on the outflow side, so that the distribution of flow velocities is equalized. An exhaust gas cleaning component and a motor vehicle having the exhaust gas cleaning component are also provided.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: October 28, 2014
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventor: Rolf Brück
  • Patent number: 8857159
    Abstract: An exhaust system includes main line that runs through a three way converter (TWC) and then a lean NOx trap (LNT). The exhaust system further includes a bypass line configured to bypass the TWC. The LNT includes catalyst that is non-uniformly distributed along the longitudinal axis. The catalyst is distributed such that storage sites are weighted toward the upstream end of the LNT and oxidation and reduction sites are weighted toward the downstream end of the LNT.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: October 14, 2014
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Atul Pant, Karthik Ramanathan
  • Patent number: 8844271
    Abstract: In a method for regenerating s catalyzed diesel particulate filter (DPF) via active NO2-based regeneration with enhanced effective NO2 supply, a NOx containing gas is introduced into the DPF, and a temperature of at least one of the DPF, the NOx containing gas, and soot in the DPF is controlled while control Sing NOx levels at an inlet of the DflF so that the NOx containing gas reacts with the catalyst to form N 02 molecules that thereafter react with soot particles to form CO, CO2, and NO molecules and a N02 efficiency is greater than 0.52 gC/gNO2 and so that less than two thirds of the soot mass that is removed from the DPF is oxidized by 02 molecules in the gas to form CO and CO2 molecules.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: September 30, 2014
    Assignee: Mack Trucks, Inc.
    Inventors: Jeffrey A. Huber, Kenth I. Svensson
  • Publication number: 20140260192
    Abstract: Exhaust system for a dual-fuel engine that is provided with a first fuel and a second fuel. The exhaust system includes an exhaust passageway, with an exhaust treatment component provided in the exhaust passageway. A thermal enhancement device communicates with the exhaust passageway and is located upstream from the exhaust treatment component, wherein the thermal enhancement device is operable to raise a temperature of an exhaust located in the exhaust passageway during a switch between the first fuel and the second fuel that is provided to the dual-fuel engine. The exhaust treatment system can also include a by-pass pipe in communication with the exhaust passageway that by-passes the exhaust treatment component, wherein during combustion of the first fuel by the dual-fuel engine, the by-pass pipe is open. During combustion of the second fuel by the dual-fuel engine, the by-pass pipe is closed.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Michael Golin, Adam J. Kotrba, Robert Applegate
  • Patent number: 8833058
    Abstract: Embodiments for routing exhaust in an engine are provided. In one example, an engine method comprises, during a first condition, firing a subset of cylinders and routing all exhaust from the subset of cylinders through a first exhaust manifold coupled directly to a catalyst and not a turbocharger, and during a second condition, firing all cylinders, routing a first portion of exhaust through a second exhaust manifold coupled to the turbocharger, and routing a second portion of exhaust through the first exhaust manifold. In this way, exhaust can be directly routed to a catalyst under some conditions.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: September 16, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: James Douglas Ervin, Kim Hwe Ku, Gregory Patrick McConville, Brad Alan Boyer
  • Patent number: 8833059
    Abstract: A motor vehicle combustion engine includes an air supply section and an exhaust gas recirculation section that includes a particle filter and an SCR exhaust gas purification component. A first exhaust gas turbocharger includes a turbine arranged upstream of the particle filter in the exhaust gas section. A first exhaust gas recirculation line, which diverges from the exhaust gas section upstream of the turbine of the first exhaust gas turbocharger, and a second exhaust gas recirculation line, which diverges from the exhaust gas section downstream of the particle filter are provided to recirculate the exhaust gas from the exhaust gas section into the air supply system. An SCR catalyst is arranged in the second exhaust gas recirculation line.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: September 16, 2014
    Assignee: Daimler AG
    Inventor: Berthold Keppeler
  • Patent number: 8828342
    Abstract: An exhaust gas treatment system for treating an exhaust gas. The exhaust gas treatment system includes a first section, a bypass section, and a common second section. The first section may include a first valve and at least one exhaust gas treatment component, such as, for example, a DOC and/or DPF. The bypass section may include a bypass valve and a heater that is configured to elevate the temperature of at least a portion of the exhaust gas. The second section is in fluid communication with the first section and the bypass section and includes a selective catalytic reduction system. Further, exhaust gas may be diverted into the bypass section when the exhaust gas fails to satisfy the threshold condition, so that the heater may elevate the temperature of the passing exhaust gas.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: September 9, 2014
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Matthew Albert Tyo, Bradley Jay Adelman
  • Patent number: 8826651
    Abstract: An exhaust system for an internal combustion engine having a first exhaust tract assigned to a first group of cylinders of the internal combustion engine, and a second exhaust tract assigned to a second group of cylinders of the internal combustion engine, the first exhaust tract and the second exhaust tract being coupled to one another by a connecting line. A common bypass line branches off from the connecting line coupling the exhaust tracts.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: September 9, 2014
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Thomas Laube, Erwin Rutschmann
  • Publication number: 20140223902
    Abstract: An internal combustion engine comprising a turbocharger wherein a bypass line in an exhaust gas discharge system delivers an aqueous urea reductant to an at least one SCR catalyst and a method to maintain the reductant at a desired temperature to maximize its conversion to ammonia and optimize the reduction of NOx in the SCR.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 14, 2014
    Applicant: Ford Global Technologies, LLC
    Inventor: Yasser Mohamed sayed Yacoub
  • Patent number: 8800271
    Abstract: Disclosed herein is an SCR system of a vessel for discharging exhaust gas from an exhaust gas source in the vessel to an outside after performing purification of the exhaust gas. The SCR system includes an SCR reactor connected at a leading end thereof to the exhaust gas source and including a catalyst activated by the exhaust gas introduced into the SCR reactor, a reducing agent supply line supplying NH3 or urea into the SCR reactor, and a bypass system forcing the exhaust gas discharged from the exhaust gas source to bypass the SCR reactor.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: August 12, 2014
    Assignee: Kwang Sung Co., Ltd.
    Inventors: Keai Yoon Hwang, Sung Chul Hwang
  • Patent number: 8800272
    Abstract: Systems and methods for storing NH3 that has slipped through a first SCR are described. In one example, NH3 is stored in a second SCR and released to the first SCR via desorption. The systems and method may reduce NH3 consumption and increase NH3 utilization within an exhaust system.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: August 12, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Avra Brahma, Devesh Upadhyay