Having Heater, Igniter, Or Fuel Supply For Reactor Patents (Class 60/303)
  • Patent number: 10094259
    Abstract: A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: October 9, 2018
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Mugdha Naik, Yongquan Chai, Shu Zhang, Xin Jin, Srivardhan Chandrapati, James Houghtell, Deepu J. Chandy
  • Patent number: 10024213
    Abstract: One form of the present application is an apparatus including an internal combustion engine structured to produce an exhaust flow, an exhaust system structured to receive the exhaust flow, and a reductant injector structured to inject reductant into a primary passage of the exhaust system upstream of a catalyst. The apparatus further includes an injector passage structured to receive a portion of exhaust upstream of the injector and further structured to flow the exhaust into the primary passage around the injector in a manner such that deposit formation is reduced.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: July 17, 2018
    Assignee: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Douglas A. Mitchell, Mihai Chiruta, Lindsey R. Henry, Jim Alonzo
  • Patent number: 9828897
    Abstract: A mixer for a vehicle exhaust system includes an upstream baffle with at least one inlet opening configured to receive engine exhaust gas, a downstream baffle with at least one outlet opening configured to conduct engine exhaust gases to a downstream exhaust component, and an outer peripheral wall surrounding the upstream and downstream baffles and defining a mixer central axis. An intermediate plate is positioned between the upstream and downstream baffles to block direct flow from the inlet opening to the outlet opening. The intermediate plate initiates a rotational flow path that directs exhaust gases exiting the inlet opening through a rotation of more than 360 degrees about the mixer central axis before exiting the outlet opening.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: November 28, 2017
    Assignee: Faurecia Emissions Control Technologies USA, LLC
    Inventor: Eduardo Alano
  • Patent number: 9726064
    Abstract: A mixer for a vehicle exhaust system includes a mixer body defining a mixer central axis and having an inlet configured to receive engine exhaust gas and an outlet. The mixer further includes an upstream baffle positioned within the mixer body and a downstream baffle positioned within the mixer body to be spaced from the upstream baffle in a direction along the mixer central axis. A doser defines a doser axis and is positioned to spray a reducing agent into an area between the upstream baffle and the downstream baffle such that a mixture of reducing agent and exhaust gas exits the outlet. The mixture moves through a rotational flow path that is at least 360 degrees before exiting the outlet.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 8, 2017
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventor: Eduardo Alano
  • Patent number: 9719396
    Abstract: A method for operating a device configured to deliver a liquid includes: a) back-suctioning a liquid situated in a pressure line section counter to a usual delivery direction by at least one pump; b) monitoring at least one operating parameter of the at least one pump during the back-suctioning, the at least one operating parameter being representative of a counterpressure that the at least one pump operates against during the back-suctioning; and c) detecting an increase in the counterpressure, and stopping the back-suctioning.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 1, 2017
    Assignee: Continental Automotive GmbH
    Inventors: Rolf Brück, Jan Hodgson, Christian Vorsmann
  • Patent number: 9617892
    Abstract: An exhaust after-treatment system for mitigating deposition of urea utilizing selective catalytic reduction (SCR) in exhaust receiving communication with an exhaust gas stream produced by an engine system, including an exhaust passage including a mixing duct through which the exhaust gas stream flows. A fluid reservoir contains a urea solution and a fluid pump is fluidly connected to the fluid reservoir to draw the urea solution from within the fluid reservoir. A fluid injector is configured to receive the urea solution from the fluid pump and deliver the urea solution into the mixing duct and at least one vibration mechanism is mechanically coupled to one or both of the fluid injector and the mixing duct to generate and convey vibrations thereto to mitigate the deposition of urea.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: April 11, 2017
    Assignee: Caterpillar Inc.
    Inventors: Cuong C. Ly, Brian C. Applegate
  • Patent number: 9435240
    Abstract: An aftertreatment system may include an exhaust pipe and a mixing pipe. The exhaust pipe receives exhaust gas from an engine. The mixing pipe is disposed in the exhaust pipe and may include a tubular portion and a plurality of blades extending from a longitudinal end of the tubular portion. The tubular portion may include a plurality of openings extending through inner and outer diametrical surfaces of the tubular portion. The tubular portion and the plurality of blades may define an integrally formed unitary body.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: September 6, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Manoj K. Sampath, Joshua Hicks, Ryan A. Floyd
  • Patent number: 9394821
    Abstract: Device for improving the purifying liquid evaporation in an axially symmetric dosing module for an SCR device. The dosing module is able to dose a urea-based reducing agent into a gas exhaust stream generated by a combustion engine. The dosing module comprises a housing developing symmetrically along a development axis; a nozzle for dosing the urea-based reducing agent, arranged along said development axis; and an inlet opening for conveying the gas exhaust stream into the dosing housing, arranged annularly with respect to the nozzle. The device further includes a splitting wall, arranged within the inlet opening for defining at least two separate annular gas stream paths, one annular and coaxial with respect to another, one of them shaped for inducing a different axial speed into a respective gas stream with respect to another.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: July 19, 2016
    Assignee: FPT Motorenforschung AG
    Inventors: Daniel Assalve, John Campbell, Harald Fessler, Reto Schlegel
  • Patent number: 9371754
    Abstract: An after-treatment device that includes a diesel particulate filter (DPF) requiring periodic regeneration includes a sensor providing a signal indicative of a soot accumulation and at least one device providing an operating parameter indicative of a work mode of the machine. A controller determines a soot level and a readiness level based on the work mode of the machine, and further classifies the soot level relative to a desired range for initiating a regeneration event and initiates the regeneration event when the soot level falls within the desired range.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: June 21, 2016
    Assignee: Caterpillar Inc.
    Inventors: Jason K. Bloms, David Kapparos, Tyler V. Richards, Glenn B. Cox, Matt Leustek, Rajiv Nanjundareddy, Vadiraj P. Kulkarni
  • Patent number: 9347355
    Abstract: An exhaust gas treatment system for reducing emissions from an engine includes an exhaust conduit adapted to supply an exhaust stream from the engine to an exhaust treatment device. The conduit includes an aperture. An injector injects a reagent through the aperture and into the exhaust stream. A flow modifier is positioned within the exhaust conduit upstream of the injector. The flow modifier includes a diverter for increasing the velocity of the exhaust gas at a predetermined location within the conduit relative to the injected reagent.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: May 24, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Ryan A. Floyd, John M. Lowry, Larry J. Geer
  • Patent number: 9341099
    Abstract: An emissions cleaning module includes a flow conduit having an upstream end fluidly connected to a source of exhaust fluid and a downstream end fluidly connected to a mixer module. An injector module has an outlet orientated to inject injection fluid into the flow conduit upstream the mixer module. A low pressure cavity downstream the injector module outlet is fluidly connected to the flow conduit or the mixer module by an open mouth orientated such that a flow of exhaust fluid along the flow conduit flows over the open mouth creating a pressure reduction within the low pressure cavity.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 17, 2016
    Assignee: Perkins Engines Company Limited
    Inventor: Naseer A. Niaz
  • Patent number: 9341295
    Abstract: A reductant system for an aftertreatment system of an internal combustion engine is disclosed. The reductant system includes at least one reductant feed line and a reductant system component such as a dosing module. The feed line is connected to the dosing module with a fluid connector. The fluid connector includes a body made from a first material that has a low heat conductivity and an insert made from a second material that has a greater heat conductivity than that of the first material. The insert extends from the body of the fluid connector into a storage chamber of the dosing module, and conducts heat from heated reductant in the feed line to the reductant stored in the storage chamber.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: May 17, 2016
    Assignee: Cummins Emission Solutions, Inc.
    Inventors: John Heichelbech, Jim F. Burke, John Anthis, Andrew Myer
  • Patent number: 9272244
    Abstract: The invention relates to an electronically controlled metering system having at least one sensor for injection of a reducing agent, especially a urea solution, into the exhaust gas stream of an internal combustion engine for selective catalytic reduction, the metering system being connected/connectable to a tank from which the reducing agent can be taken, the reducing agent being conveyed by means of a pump, the metering system having a first line which carries the reducing agent and the metering system having a compressed air supply and a second line which carries compressed air and at least one nozzle which is coupled to both lines and by which the reducing agent together with the compressed air can be injected into the exhaust gas stream, the metering system in the line which carries the reducing agent having at least one damping element for equalization of pressure fluctuations.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 1, 2016
    Assignee: Albonair GmbH
    Inventors: Armin Kassel, Michael Kolm, Werner Overhoff
  • Patent number: 9273575
    Abstract: There is disclosed a porous material which has an improved thermal shock resistance. The porous material contains aggregates and a composite binder. The composite binder includes glass as a binder and mullite particles as reinforcing particles, and the mullite particles are dispersed in the glass. The aggregates are connected to each other by the composite binder in a state where pores are formed in the porous material. Preferably, a lower limit of a percentage of a content of the composite binder to a total mass of the aggregates and composite binder is 12 mass %, and an upper limit of the percentage of the content of the composite binder to the total mass of the aggregates and composite binder is 50 mass %. Preferably, the glass contains MgO, Al2O3 and SiO2 and further contains at least one selected from a group consisting of Na2O, K2O and CaO.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: March 1, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Yunie Izumi, Yoshimasa Kobayashi
  • Patent number: 9228470
    Abstract: A honeycomb structure includes a honeycomb structure section having porous partition walls, and an outer peripheral wall; and a pair of electrode sections, each of the pair of electrode sections are formed into a band shape, the one electrode section is disposed on an opposite side to the other electrode section via a center O of the honeycomb structure section, a shape of the cells is a quadrangular shape or a hexagonal shape, and in the cross section perpendicular to the extending direction of the cells and including the electrode sections, a straight line parallel to a diagonal line connecting two facing vertexes of the one cell and passing the center of the honeycomb structure section is a reference line L, and each of the electrode sections is disposed at a position to intersect with the at least one reference line L.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: January 5, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshiyuki Kasai, Yoshimasa Omiya, Kazumi Mase
  • Patent number: 9163542
    Abstract: The invention relates to a reducing agent dosing system for injecting a reducing agent into the exhaust-gas flow of an internal combustion engine for selective catalytic reduction, wherein the dosing system can be or is connected to a reducing agent tank (1) from which reducing agent is extracted and delivered by means of a reducing agent pump (2), wherein there is a compressed air supply (3) and at least one nozzle (4) is provided which is connected to the pressure line (11) of the reducing agent pump (2) and via which the reducing agent is introduced into the exhaust-gas flow and atomized by means of compressed air, wherein the pressure line (11) of the reducing agent pump (2) issues via an inlet (6) into a valve (5) which, when it is subjected to pressure by reducing agent delivered by the reducing agent pump (2), opens up the inlet (6) to the valve (5) and an overflow duct to an outlet (7) of the valve to a dosing line (12) to the nozzle (4).
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: October 20, 2015
    Assignee: Albonair GmbH
    Inventors: Armin Kassel, Werner Overhoff
  • Patent number: 9151205
    Abstract: Methods and apparatus for detecting the filtering state of a filter, such as a particulate filter. Some embodiments include one or more capacitive sensors that provide a signal corresponding to the filtered state of the filter with a change in measured capacitance. A novel ECT based sensing technique for soot load estimation in a diesel particulate filter is presented. The sensing technology is based on principle that deposited soot thickness inside DPF causes a variation in the dielectric constant which has a direct impact on the capacitance of ECT system and its output voltage. The sensor can be built into the DPF outer shell as indicated in the design. The simulation results demonstrate that there is a direct relationship between the amount of soot load in the DPF and the output voltage of the ECT system which can be used to estimate the soot load.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: October 6, 2015
    Assignee: Indiana University Research & Technology Corporation
    Inventors: Ragibul Huq, Sohel Anwar
  • Patent number: 9127581
    Abstract: A filter assembly includes: a cylindrical diesel particulate filter disposed on a flow passage through which an exhaust gas from an engine is discharged, the filter having gas flow passages formed and disposed therein by dividing an inner space into a lattice form; and an electrode unit disposed at at least one of both side surfaces of the filter, the electrode unit receiving electric power to heat the filter. A plurality of regions resulting from division into a lattice form in the filter have alternately disposed open and closed sections. A device for reducing an exhaust gas including the above filter assembly is also provided.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: September 8, 2015
    Assignee: Jeju National University Industry-Academic Cooperation Foundation
    Inventor: Heon Ju Lee
  • Patent number: 9109486
    Abstract: A mixing chamber for an exhaust system is disclosed. The mixing chamber includes a tapering cross sectional area perpendicular to a longitudinal axis of the mixing chamber. The mixing chamber includes a first end having a first cross sectional area and a second end having a second cross sectional area. The second cross sectional area is less than the first cross sectional area. The second end is configured to receive an injector. The mixing chamber includes a first exhaust conduit fluidly connected to the first end of the mixing chamber and defining a first exhaust gas flow path into the mixing chamber substantially perpendicular to the longitudinal axis. The mixing chamber also includes a second exhaust conduit fluidly connected to the first end of the mixing chamber and defining a second exhaust gas flow path out of the mixing chamber substantially in the direction of the longitudinal axis.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: August 18, 2015
    Assignee: Caterpillar Inc.
    Inventor: Praveen S. Chavannavar
  • Patent number: 9097155
    Abstract: A device for treating exhaust gas containing soot particles includes at least one ionization element for ionizing soot particles, at least one filter element having at least one section to which an electric potential can be applied and at least one agglomeration unit for at least partial agglomeration of electrically charged soot particles. The agglomeration unit is disposed between the ionization element and the filter element and the agglomeration unit has at least one outer pipe and at least one inner element. The filtering power of an exhaust system of an internal combustion engine is therefore increased by an increase in the agglomeration rate of the soot particles. A motor vehicle having the device is also provided.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 4, 2015
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Jan Hodgson, Rolf Brueck, Christian Vorsmann
  • Patent number: 9074511
    Abstract: A reductant delivery unit for selective catalytic reduction (SCR) after-treatment for vehicles includes a fluid injector having a fluid inlet and a fluid outlet. The fluid inlet receives a source of urea solution. An injector flange is coupled directly with an end of the fluid injector and has a flange outlet in fluid communication with the fluid outlet of the fluid injector. The flange outlet is associated with an exhaust gas flow path upstream of a SCR catalytic converter with the fluid injector controlling injection of urea solution into the exhaust gas flow path. Internal surface structure that defines the flange outlet includes a conical surface joined with at least one radius surface. The radius surface is constructed and arranged to resist formation of deposits on the internal surface structure due to break down of the urea solution.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: July 7, 2015
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Willem Nicolaas Van Vuuren, Stephen C. Bugos
  • Patent number: 9038371
    Abstract: In a supply arrangement for supplying a solution containing a reducing agent, in particular urea, to an exhaust gas system of an internal combustion engine wherein a supply line extending from a storage tank to an injector which is connected to the exhaust gas system includes an operating tank and a dosing arrangement, a return line extends between the dosing arrangement and the storage tank and the dosing arrangement includes a directional valve for directing solution to the injector during a first operating mode in which the engine is operating and, in a second operating mode in which the engine is shut down, directing the solution back to the storage tank for emptying the operating tank.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: May 26, 2015
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventor: Nicolas Gräter
  • Patent number: 9038376
    Abstract: An exhaust-gas recirculation device for an internal combustion engine, a method for controlling an exhaust-gas recirculation device, a drive for a motor vehicle having an exhaust-gas recirculation device, and a motor vehicle having a drive of said type are described. The exhaust-gas recirculation device comprises a turbine, and an exhaust-gas aftertreatment device. The exhaust-gas aftertreatment device has an inlet connected to an outlet of the turbine, and is configured to reduce a pollutant content in the exhaust-gas flow. An electric grid heater is arranged between the outlet of the turbine and the inlet of the exhaust-gas aftertreatment device and is configured to heat the exhaust-gas flow.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: May 26, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Simon Petrovic, Christian Winge Vigild
  • Patent number: 9032713
    Abstract: An exhaust-pipe injection system capable of accurately monitoring a lowered injection pressure generated in a fuel line due to exhaust pipe injection and appropriately perform feedback control for the exhaust injection amount. The exhaust-pipe injection system includes: an exhaust pipe injector that injects fuel to an exhaust pipe of an internal combustion engine; a supply pump that sends a fuel to the exhaust pipe injector via a fuel line; a pressure compensating device provided in the vicinity of the exhaust pipe injector of the fuel line; a fuel pressure sensor provided in the fuel line in an upstream side from the pressure compensating device; and an injection control device that adjusts an injection amount of the exhaust pipe injector based on a monitoring value of the fuel pressure sensor.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: May 19, 2015
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Daiji Nagaoka, Teruo Nakada, Tomohiro Korenaga
  • Patent number: 9032710
    Abstract: A diesel dosing module utilizes a diesel fuel shut-off valve, a diesel fuel dosing valve to provide dosing fuel to the inlet of a diesel oxidation catalyst and an air purge valve to purge fuel from a dosing line attached to the diesel dosing module and from a nozzle attached to a distal end of the dosing line. The valves are attached to a housing manifold which is remotely positionable from the nozzle and the high heat areas of the vehicle.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: May 19, 2015
    Assignee: Parker-Hannifin Corporation
    Inventors: Peter M. White, Michael Robert Valenches, Robert W. Zeiner, Andrew Jozef Brzoska
  • Patent number: 9032709
    Abstract: Provided is an emission treatment system and method for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The emission treatment system has an oxidation catalyst upstream of a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. Also provided is a method for disposing an SCR catalyst composition on a wall flow monolith that provides adequate catalyst loading, but does not result in unsuitable back pressures in the exhaust.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: May 19, 2015
    Assignee: BASF Corporation
    Inventors: Joseph Allan Patchett, Joseph Charles Dettling, Elizabeth Alina Przybylski
  • Patent number: 9032715
    Abstract: A method and device for controlling emissions of VOC's comprises transporting VOC's to an engine and transporting the exhaust from the engine into a manifold. Supplemental air is transporting into the manifold and heat is transferred from the exhaust to the supplemental air within the manifold. The supplemental air is mixed with the exhaust and the mixture is transferred to a pollution abatement device.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: May 19, 2015
    Assignee: BRB/SHERLINE, INC.
    Inventor: Bernhardt R. Bruns
  • Patent number: 9027331
    Abstract: A burner for an exhaust aftertreatment system may include a housing assembly and an ignition device. The housing assembly may include an inner shell surrounded by intermediate and outer shells. The inner shell may at least partially define a combustion chamber. The housing assembly may include an airflow passage having an opening extending through the outer shell. The airflow passage may extend between the outer shell and the intermediate shell as well as between the intermediate shell and the inner shell. The airflow passage may provide fluid communication between the opening and the combustion chamber. The ignition device may be at least partially disposed within the housing assembly and may ignite fuel received from a fuel source and air received from the airflow passage to produce a flame in the combustion chamber. The airflow passage may be in a heat transfer relationship with the flame in the combustion chamber.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 12, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Keith G. Olivier
  • Patent number: 9027530
    Abstract: A method of calibration of at least one fuel injector for a fuel burner in an exhaust gas treatment system for an internal combustion engine is provided. The method is adapted for an exhaust gas system having the fuel burner mounted upstream of a diesel particle filter (DPF). The method of calibration is performed during an idle speed of the combustion engine, this to assure a constant temperature of the burner during the calibration. Hence, the method is started when a first steady tempera tore is registered in the fuel burner, wherein the at least one fuel injector, is operated with a first pulse width. A first temperature of an exhaust gas is registered directly downstream of the fuel burner. After this first temperature is registered, the pulse width, of the fuel injector changed into a second pulse width, which is different from the first pulse width.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: May 12, 2015
    Assignee: Volvo Lastvagner AB
    Inventor: Mats Moren
  • Patent number: 9027332
    Abstract: An exhaust treatment system may include a burner, a flame sensor assembly and a control module. The flame sensor assembly may be at least partially disposed within the burner and may include an insulator and an electric heating element in heat transfer relation with the insulator. The control module may be in communication with the flame sensor assembly. The control module may determine whether a flame is present in a combustion chamber based on feedback from the flame sensor assembly. The control module may detect contamination on the insulator based on feedback from the flame sensor assembly. The control module may operate the heating element in a first mode in response to detection of a contamination in which the control module causes electrical power to be applied to the heating element to raise a temperature of the heating element to burn contamination off of the insulator.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 12, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Keith G. Olivier
  • Publication number: 20150121857
    Abstract: This burner has: a flame stabilizer formed in a tubular shape; a fuel supply unit that supplies fuel within the flame stabilizer; an air supply passage that includes a heater unit for heating air and that supplies air heated by the heater unit into the flame stabilizer; and an ignition unit that ignites the air-fuel mixture of combustion air and fuel within the flame stabilizer.
    Type: Application
    Filed: April 24, 2013
    Publication date: May 7, 2015
    Inventors: Ichiro Tsumagari, Ryo Shibuya, Atsushi Koide
  • Patent number: 9021787
    Abstract: A fluid delivery apparatus with a flow sensing means for delivering a first fluid into a second fluid. In a fluid delivery apparatus using a common rail method, which produces a pulsated flow, the flow sensing means generates sensing signals indicative of the flow rate and the temperature of the second fluid, the delivery rate of the first fluid, and the evaporating rate of the first fluid, while in a fluid delivery apparatus using a pump metering method, the flow sensing means is able to provide a sensing signal indicative of the delivery rate of the first fluid. The sensing signals can be used in a feedback control for controlling delivery rate, in limiting delivery rate according to the evaporation capability of the first fluid, and in a diagnostic system detecting failures and abnormalities in the fluid delivery apparatus.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 5, 2015
    Inventors: Mi Yan, Baohua Qi
  • Patent number: 9021793
    Abstract: A vehicle includes an internal combustion engine operatively disposed therein. The engine generates exhaust gases. The vehicle further includes an alternator operatively connected to the engine. The alternator produces DC power. An ultracapacitor is operatively connected to the alternator to receive electrical energy therefrom. The vehicle still further includes an exhaust gas treatment system operatively connected to the engine to receive exhaust gases therefrom. The exhaust gas treatment system includes an electrically heated catalyst (EHC) device electrically connected to the ultracapacitor to selectively heat a catalytic exhaust system component. The ultracapacitor stores energy converted by the alternator from vehicle kinetic energy and releases the stored energy to heat the EHC.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 5, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Chang H. Kim, Eugene V. Gonze, Chandra S. Namuduri, Kenneth J. Shoemaker
  • Patent number: 9016051
    Abstract: A burner device placed upstream of an exhaust treatment device mounted in an exhaust pipe to raise a temperature of an exhaust gas, comprises a fuel supply valve for supplying fuel into the exhaust pipe, an igniter that ignites the fuel supplied from the fuel supply valve, and a burner catalyst held in the exhaust pipe through a support member. The support member is formed in a corrugated shape in cross section including outer arc-shaped portions in contact with the exhaust pipe, inner arc-shaped portions in contact with an outer peripheral member of the burner catalyst, and coupling portions for coupling the outer arc-shaped portions and the inner arc-shaped portions to each other.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: April 28, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Eiji Iwasaki
  • 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: 9010093
    Abstract: In cases where at the upstream side of an NOx selective reduction catalyst there is provided another catalyst, sulfur poisoning of both the catalysts is recovered in an appropriate manner. To this end, provision is made for an NH3 generation catalyst arranged in an exhaust passage of an internal combustion engine for generating NH3, the NOx selective reduction catalyst arranged in the exhaust passage at a location downstream of the NH3 generation catalyst for reducing NOx in a selective manner, an upstream side recovery unit to recover sulfur poisoning of the NH3 generation catalyst, and a downstream side recovery unit to recover sulfur poisoning of the NOx selective reduction catalyst after the sulfur poisoning of the NH3 generation catalyst has been recovered by the upstream side recovery unit.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: April 21, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Sakurai, Toru Kidokoro, Yasuyuki Irisawa, Yuji Miyoshi
  • Patent number: 9010090
    Abstract: In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate within 200 ppm or more predetermined amplitude and within a 5 second or more predetermined period. At this time, when a predetermined amount or more of NOx is stored in the exhaust purification catalyst (13) or can be stored, the concentration of hydrocarbons flowing into the exhaust purification catalyst (13) is temporarily increased to desorb NOx which is stored at the exhaust purification catalyst (13).
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: April 21, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuki Bisaiji, Kohei Yoshida, Mikio Inoue, Kazuhiro Umemoto
  • Patent number: 9003772
    Abstract: A method for metering fuel from a high pressure system, comprising at least one high pressure pump, one pressure accumulator and one high pressure injection valve, into an exhaust gas duct of an internal combustion engine in order to regenerate a nitrogen oxide storage catalyst (NSC) disposed in the exhaust gas duct, wherein a higher pressure of the fuel is generated by the electrically actuated high pressure pump, which discretely delivers fuel and has a constant stroke volume, wherein the fuel is supplied to the pressure accumulator comprising a pressure measuring device for determining the fuel pressure and wherein the fuel is injected into the exhaust gas duct via the downstream, electrically actuated high pressure injection valve.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: April 14, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Andreas Kellner
  • Patent number: 9003783
    Abstract: A diesel locomotive burner arrangement for controlling the temperature of exhaust gas at the exhaust aftertreatment system thereby controlling the oxidation of soot within the aftertreatment system filters. The burner is arranged in isolation of the locomotive engine to ensure freedom from vibration and excessive thermal input, as well as ease of servicing.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 14, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Gary R. Svihla, Ajay Patel
  • Patent number: 8997462
    Abstract: An engine system comprising: an exhaust gas system for removing exhaust gas from the engine; a turbocharger comprising a compressor for inducing air towards the engine and a turbine provided along the exhaust gas system and driven by removed exhaust gas for powering the compressor; a hydrogen delivery apparatus adapted to deliver hydrogen to the exhaust gas system such that the hydrogen can combust and expand, thereby increasing the speed of the turbine. The increased speed of the turbine operation decreases turbo lag and increases engine responsiveness.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 7, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Jonathan Edward Caine
  • Patent number: 8997470
    Abstract: An exhaust gas purifying device for an internal combustion engine, including: an electrically heated catalyst which has a catalyst carrier supporting a catalyst and a carrier retention unit which is provided on an outer periphery of the catalyst carrier, which retains the catalyst carrier, and which has an electrical insulation property; and a cooling unit which cools the carrier retention unit. Therefore, it is possible to prevent the temperature of the carrier retention unit from becoming high, and it becomes possible to appropriately ensure the insulation property of the electrically heated catalyst. Hence, it becomes possible to expand a condition range in which the current can be applied to the electrically heated catalyst.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 7, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mamoru Yoshioka, Noriaki Kumagai, Naoya Takagi
  • Patent number: 8997463
    Abstract: A reductant delivery unit for selective catalytic reduction (SCR) after-treatment for vehicles includes a solenoid operated fluid injector associated with an exhaust gas flow path upstream of a SCR catalytic converter. The fluid injector has a fluid inlet and a fluid outlet. The fluid inlet receiving a source of reducing agent and the fluid outlet communicating with the exhaust gas flow path so that the fluid injector controls injection of urea solution into the exhaust gas flow path. The fluid injector has an inlet tube for directing the reducing agent between the fluid inlet and the fluid outlet. A shield is fixed with respect to the fluid injector and surrounds at least portions of the fluid injector. A coil heater is integral with the fluid injector and is constructed and arranged, when energized, to inductively heat the inlet tube to thereby heat the reducing agent within the inlet tube.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: April 7, 2015
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Stephen C. Bugos, Michael J. Hornby, Perry Czimmek, Keith Shaw, Willem Nicolaas van Vuuren
  • Patent number: 8991163
    Abstract: A burner for an exhaust aftertreatment system is provided that includes a nozzle assembly having a body and a heating element. The body may include first and second cavities, a fuel inlet passage and an air inlet passage. The first cavity may receive portion of the heating element and may be in fluid communication with the fuel inlet passage and a fuel discharge passage such that fuel from the fuel inlet passage is heated in the first cavity by the heating element and discharged from the first cavity through the fuel discharge passage. The second cavity may be in fluid communication with the air inlet passage and an air discharge passage. The first and second cavities may be fluidly isolated from each other and may supply fuel and air, respectively, to an exit aperture disposed downstream of the fuel discharge aperture and the air discharge aperture.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: March 31, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Keith G. Olivier
  • Patent number: 8991161
    Abstract: A process which solves the problem of supplying NO2 in accordance with requirements by means of temperature control of the precatalyst which is decoupled from the operating state of the engine. In an associated apparatus, a precatalyst which contains at least one oxidation component and whose temperature can be controlled independently of the operating state of the engine and an active SCR stage comprising an SCR catalyst with upstream metering facility for a reducing agent from an external source are arranged in series. A particle filter can be arranged between precatalyst and metering facility. The precatalyst preferably additionally contains a nitrogen oxide storage material.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: March 31, 2015
    Assignee: Umicore AG & Co. KG
    Inventors: Lothar Mussmann, Ingo Lappas, Andreas Geisselmann, Wilfried Mueller
  • Patent number: 8991158
    Abstract: A device for providing a reducing agent for an exhaust gas system includes a system heating unit for heating a reducing agent and at least one heat conduction element transmitting heat from the system heating unit to at least one of the following components: a tank, a delivery line, a filter, a pump, a valve or a sensor. A thermal heating method using a heat pipe and a motor vehicle having the device are also provided.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 31, 2015
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Rolf Brueck, Jan Hodgson, Sven Schepers
  • Patent number: 8991157
    Abstract: An exhaust treatment system for an engine includes a regeneration device being in receipt of exhaust from the engine and positioned upstream of a diesel particulate filter. A compressor provides a source of compressed air. An air/fuel nozzle is coupled to the regeneration device, in receipt of a fuel supply as well as the compressed air. The fuel and compressed air are forced through an orifice of the nozzle to atomize the fuel. A bypass line provides compressed air from the compressor to the regeneration device without passing through the orifice of the nozzle. A valve is operable to allow compressed air to flow through the bypass line when a predetermined condition exists.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: March 31, 2015
    Assignee: Woodward, Inc.
    Inventors: Daniel B. Mastbergen, Clark Fraser Paterson, John Michael Williams, Lawrence Dalimonte, Nicholas Morley, Tom DePotter, Jagandeep Sandhu
  • Publication number: 20150082775
    Abstract: The present invention relates to a dosing valve and to a dosing device (15) for introducing a liquid medium into an exhaust-gas stream of an internal combustion engine (1) of a motor vehicle. The dosing device (15) has a pump (23) for delivering the liquid medium. The medium is injected into the exhaust-gas stream by means of a dosing valve (13) which can be controlled by way of an electromagnet (65). The dosing device (13) comprises a housing (33) with a stepped bore (34, 34.1, 34.2, 34.3, 34.4), wherein a pump sleeve (47) is guided sealingly in one portion (34.4) of the stepped bore (34). A hollow-bored piston (49) is guided sealingly in a central bore (48) of the pump sleeve (47). In a low-pressure chamber (61), an armature (69) is fastened to the piston (49), and furthermore a magnet sleeve (67) is fastened to the housing (33).
    Type: Application
    Filed: February 19, 2013
    Publication date: March 26, 2015
    Inventor: Matthias Burger
  • Patent number: 8984866
    Abstract: An exhaust gas post treatment system for an internal combustion engine, including an intake device for taking hydrocarbons into an exhaust gas pipe carrying the exhaust process gas from the internal combustion engine and a treatment device through which exhaust process gas flows downstream of the intake location and which increases the exhaust process gas temperature by oxidation of the hydrocarbons taken in. An exhaust gas post treatment system and a method for operating the same, in that the treatment device has catalytically coated components, the hydrocarbons are at least partly evaporated in the intake device and are modified chemically by cracking reactions and/or by partial oxidation, and the proportion of platinum, at least in a subregion of the catalytic coating of the components, is less than 50% of the overall mass of all the catalytically active substances in this sub region of the coating.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: March 24, 2015
    Assignees: Umicore AG & Co. KG, Deutz AG
    Inventors: Rolf Miebach, Stephan Schraml, Peter Broll, Andreas Geisselmann, Stefan De Buhr, Stéphanie Frantz, Anke Woerz, Frank-Walter Schuetze
  • Patent number: 8984862
    Abstract: A component carrier (20) of a dosing system for injecting a urea solution to the exhaust-gas flow (9) of an internal combustion engine for the purpose of selective catalytic reduction, wherein the dosing system can be connected to a urea solution tank (1) from which urea solution can be extracted, and wherein the dosing system can be connected to a compressed air supply (6), wherein the dosing system has a pump (3) for feeding the urea solution and wherein the dosing system has at least one nozzle (5) by means of which the urea solution can be injected into the exhaust-gas flow (9) by means of compressed air, wherein components (2, 3, 7, 13, 14, 51, 52) of the dosing system can be mounted on the component carrier (20) so as to be in thermal contact with the component carrier (20), and wherein the component carrier (20) has at least one contact region (21, 22) for producing thermal contact with respect to the coolant circuit of the internal combustion engine, such that the component carrier (20) forms a heat s
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: March 24, 2015
    Assignee: Albonair GmbH
    Inventors: Werner Overhoff, Armin Kassel
  • Patent number: 8984863
    Abstract: Provided is an ammonia injection device (10) installed at an exhaust gas duct through which an exhaust gas generated in a gas turbine flows, and configured to inject ammonia into the exhaust gas at an upstream side of a denitration catalyst configured to perform denitration processing in a flowing direction of the exhaust gas, the device including a plurality of ammonia injection pipes (11) disposed in parallel each other in a surface which traverses the exhaust gas duct. A plurality of nozzle pipes (12) configured to eject the ammonia from the ammonia injection pipes in an arrangement direction of the plurality of ammonia injection pipes are installed at the ammonia injection pipe in a longitudinal direction of the ammonia injection pipes. Diffuser panels (13) extending toward a downstream side in a flowing direction of the exhaust gas at both sides in a longitudinal direction of the ammonia injection pipes with respect to the nozzle pipes are formed at the nozzle pipes.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: March 24, 2015
    Assignee: IHI Corporation
    Inventors: Akinori Yukimura, Masafumi Kawai, Yoshiyuki Yamane