Having Heater, Igniter, Or Fuel Supply For Reactor Patents (Class 60/303)
  • Patent number: 11459926
    Abstract: A system, apparatus, and method for oxidizing methane in the exhaust gas from a lean-burn combustion gas engine in which a syngas stream comprising H2 and CO, or a combustible hydrocarbon with a light-off temperature at or below the temperature of the engine exhaust temperature, is added to and combined with the engine exhaust stream and passed through an oxidation catalyst whereupon the combustible gas oxidizes and increases the operating temperature of a platinum group oxidation catalyst sufficiently to exceed the light-off temperature of the platinum group catalyst for oxidizing methane emissions contained in the engine exhaust stream.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: October 4, 2022
    Assignee: MIRATECH GROUP, LLC
    Inventors: Tracy D. Staller, Steven G. DeCicco
  • Patent number: 11454178
    Abstract: The present invention relates to a method for controlling an internal combustion engine arrangement, which method comprises the steps of controlling an outlet valve to be arranged in an at least partial open position during a portion of an intake stroke; and providing a reducing agent to at least a portion of the flow of combustion gas exhausted from the combustion cylinder during an exhaust stroke.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: September 27, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Arne Andersson, Lennart Andersson
  • Patent number: 11446599
    Abstract: A particulate filter 23 is configured by being provided with, arranged side by side, a plurality of honeycomb-shaped segments 29, 30, 31 having a plurality of cells 32. The density of cells in the segments 30, 31 disposed in the outer circumference part is set to be lower than the density of cells in the segments 29 disposed in the center part. In addition, the segments 30, 31 disposed in the outer circumference part are configured so that the density of the cells 32 becomes lower as the area of the end face becomes smaller.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: September 20, 2022
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Yukihiro Kawashima
  • Patent number: 11447020
    Abstract: A lift device comprises a base, a linear actuator, and a rechargeable battery system. The base has a plurality of wheels. The linear actuator is configured to selectively move a work platform configured to support a load between a raised position and a lowered position. The linear actuator has an electric motor. The rechargeable battery system includes a battery, a heating system, and a battery charger. The battery is configured to power the electric motor of the linear actuator. The heating system is configured to selectively provide heat to the battery. The battery charger is configured to selectively charge the battery and to selectively charge the heating system. The heating system is configured to receive power from the battery through a battery power connection and to receive power from the battery charger through a battery charger power connection.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: September 20, 2022
    Assignee: Oshkosh Corporation
    Inventor: David Lombardo
  • Patent number: 11441470
    Abstract: An internal combustion engine exhaust system mixer device includes a bottom element (12) includes a downstream rear side (22) and a front side (44). The bottom element has a reactant introduction opening (31), open to a reactant receiving volume (46), and expands therefrom radially from the reactant introduction opening toward the front side. Exhaust gas passage ducts (58), arranged following one another in the circumferential direction about the opening axis (A), open to the reactant receiving volume. A swirl generation element (20) is connected to the bottom element and encloses the opening axis. A mixing volume (64) adjoins the reactant receiving volume in the direction of the opening axis and is formed in the swirl generation element. A plurality of exhaust gas passage openings (66), following one another in the circumferential direction, about the opening axis are provided in the swirl generation element.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: September 13, 2022
    Assignee: Purem GmbH
    Inventors: Peter Kast, Michael Dentler, Vincent Eder, Mathias Rothfuss
  • Patent number: 11441471
    Abstract: A controller controls energization of a filter and a fuel addition valve in an exhaust purifying apparatus. The controller executes a filter regeneration process when an electrical resistance value between two electrodes fixed to an outer surface of the filter is less than a predetermined regeneration determination value. The controller executes a soot burning process when the electrical resistance value is greater than or equal to the regeneration determination value and less than a soot burning determination value, which is set in advance to be larger than the regeneration determination value.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: September 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takahiro Sadamitsu
  • Patent number: 11415035
    Abstract: A diesel engine high pressure SCR ventilation and voltage stabilisation system, comprising an SCR reactor (10), an air intake pipeline (20) and an exhaust pipeline (30) respectively connected to an air inlet and an exhaust outlet of the SCR reactor, a pressure difference sensing apparatus (40), and a control apparatus, a first control valve (21) being arranged on the air intake pipeline (20) and a second control valve (31) being arranged on the exhaust pipeline (30), and the control apparatus being connected to the pressure difference sensing apparatus (40), the first control valve (21), and the second control valve (31). The control apparatus controls the first and second control valves such that the pressure difference between the SCR reactor and the exhaust side of the diesel engine remains in a predetermined pressure difference range. The present system implements rapid ventilation and ensures precise control and stabilisation of pressure difference.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: August 16, 2022
    Assignee: SHANGHAI MARINE DIESEL ENGINE RESEARCH INSTITUTE
    Inventors: Zhigang Wang, Xiangli Zhu, Xiaobo Li, Teng Shen, Qiuyan Chen, Feixiang Shen
  • Patent number: 11408314
    Abstract: A heating apparatus for heating fluid includes a container body, a plurality of electric heater elements, and a support structure. The container body defines a perimeter of a flow path for a fluid flowing through the container body. The plurality heater elements are exposed to the flow path. Each heater element includes a resistance element, sheath, and insulating material disposed about the resistance element between the resistance element and the sheath. The support structure includes a plurality of support sheets. The heater elements extend transversely through each support sheet and contact each support sheet to restrict movement of the heater elements and support the heater elements in the container body. The support sheets contact the sheaths of the electric heater elements to increase heat transfer to the fluid flowing through the flow path. Opposite ends of each support sheet are connected to the container body.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: August 9, 2022
    Assignee: WATLOW ELECTRIC MANUFACTURING COMPANY
    Inventors: Mark D. Everly, Jeremy Ohse, David P. Culbertson, Richard T. Williams, George Jambor, Jacob Wilson
  • Patent number: 11391192
    Abstract: An exhaust control system includes: a temperature control module configured to, in response to a shutdown of an engine, turn on an air pump that, when on, pumps air into an exhaust system of the engine upstream of a selective catalytic reduction (SCR) catalyst; a target module configured to, while the air pump is on and the engine is off in response to the shutdown, selectively determine a target rate of injection of a diesel exhaust fluid (DEF) by a DEF injector based on increasing a present amount of ammonia stored by the SCR catalyst to at least a predetermined amount of ammonia; and a DEF control module configured to, while the air pump is on and the engine is off in response to the shutdown, control injection of the DEF by the DEF injector upstream of the SCR catalyst based on the target rate.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: July 19, 2022
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Thomas M. Harris, Alan C. Brockman
  • Patent number: 11319849
    Abstract: Technologies for producing an exhaust gas stream with controlled hydrocarbon species are disclosed. In some embodiments the technologies include an apparatus for producing an exhaust gas stream. The apparatus may include a burner for combusting primary fuel and produce an exhaust gas stream, and an exhaust pipe coupled to the burner to receive the exhaust gas stream. One or more supplemental fuel inlets may be coupled to the exhaust gas pipe for the addition of supplemental fuel to the exhaust gas stream. In embodiments, the speciation and total concentration of hydrocarbon compounds in the exhaust gas stream may be adjusted by controlling the relative amount of supplemental fuel added to the exhaust gas stream. Methods for producing an exhaust gas stream are also disclosed.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: May 3, 2022
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Cary A. Henry, Cynthia Chaffin Webb, Scott T. Eakle
  • Patent number: 11306634
    Abstract: The present disclosure describes an arrangement for a motor vehicle including an internal combustion engine, a heat exchanger for cooling exhaust gas present in the internal combustion engine, and an exhaust system for discharging the exhaust gas. The heat exchanger has a channel system including at least one exhaust gas channel, through which an exhaust path leads, and at least one coolant channel, through which a coolant path of a coolant leads, fluidically separate from the exhaust gas path and arranged in a heat-transferring manner with the exhaust gas path for heat exchange during operation. A cooling gas outlet, opening into the exhaust gas path upstream of the channel system, is provided for introducing a cooling gas into the exhaust gas path upstream of the channel system.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: April 19, 2022
    Inventors: Richard Bruemmer, Klaus Irmler, Falk Schneider
  • Patent number: 11242792
    Abstract: Various embodiments include a method for the production of a sensor for an exhaust gas stream of an internal combustion engine, wherein the sensor comprises a first electrode and a second electrode. The method comprises: arranging a glass solder in a mold substantially between and substantially insulating the first electrode and the second electrode; arranging an insulating element in the mold in contact with a free surface of the glass solder; and finish molding the glass solder into a glass insulator together with the insulating element in a predetermined position relative to the first electrode and the second electrode. The insulating element shapes the glass insulator during the finish molding and at least partially isolates the glass insulator from the exhaust gas of the internal combustion engine during a measuring operation of the sensor.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: February 8, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Christoph Hamann, Kay Schwarzkopf, Stefan Kohn, Hajo Gugel, Tim Walde, Christian Kiefl
  • Patent number: 11228851
    Abstract: A cerumen protection plug for a hearing device. The cerumen protection plug prevents cerumen from passing along a sound conduit in the hearing device and blocking sound output from a receiver in the hearing device. The cerumen protection plug includes a circular plug containing a cerumen barrier. A positioning handle allows the cerumen barrier to be positioned along the sound conduit, where it prevents cerumen that has entered the sound conduit from traveling along the sound conduit to the receiver or an output port of the receiver.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 18, 2022
    Assignee: Sonova AG
    Inventors: Erich Dittli, Christoph Bosshard, Marius Ruefenacht, Joseph Muller, Andre Ochsenbein, George Meier, Andreas Muller, Erdal Karamuk, Markus Muller
  • Patent number: 11215100
    Abstract: A reductant insertion assembly for inserting a reductant into an aftertreatment system includes: a pump assembly comprising a pump that includes a pump outlet; a first metering assembly fluidly coupled to the pump outlet, the first metering assembly comprising a first metering manifold; and a second metering assembly fluidly coupled in series with the pump, the second metering assembly being a separate structure from the first metering assembly and comprising a second metering manifold removably coupled to the first metering manifold. The pump is configured to pump the reductant to the first metering assembly, and to the second metering assembly via the first metering assembly.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: January 4, 2022
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Tyler Kent Lorenz, Colin L. Norris, Taren DeHart, Tony L. Bowden
  • Patent number: 11181028
    Abstract: The invention provides an emission control system for treatment of an exhaust gas stream of an engine, including an engine producing an exhaust gas stream; an SCR catalyst unit downstream from the engine and in fluid communication with the exhaust gas stream; and an ammonia generation system comprising a reservoir containing ammonium hydroxide and an ammonia injector, wherein the reservoir is in fluid communication with the ammonia injector and the ammonia injector is in fluid communication with the exhaust gas stream upstream of the SCR catalyst unit. A method of treating an exhaust gas stream of an engine is also provided, including the steps of heating ammonium hydroxide to produce gaseous ammonia and transferring the gaseous ammonia through an ammonia injector into the exhaust gas stream such that the gaseous ammonia disperses within the exhaust gas stream upstream of a SCR catalyst unit.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 23, 2021
    Assignee: BASF Corporation
    Inventor: Shiang Sung
  • Patent number: 11137333
    Abstract: A soot sensor system and a method of sensing soot in a vehicle soot sensor system. The soot sensor system and method includes providing a soot sensor having at least one trace of conductive material in a continuous loop on a surface of a substrate, applying an alternating current (AC) input voltage to the at least one trace of conductive material to establish an AC sense current through the at least one trace of conductive material, and generating, using a peak detector, a peak detector output voltage representative of a peak value of the AC sense current and of an amount of soot accumulated on the soot sensor.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: October 5, 2021
    Assignee: STANDARD MOTOR PRODUCTS, INC.
    Inventors: Kayvan Hedayat, John Hart, Eric Matson, Mark Wilson, Norman Poirier
  • Patent number: 11118785
    Abstract: A fuel injector for an exhaust heater includes a cover and an air blast nozzle. The cover has a nozzle seat, a fuel inlet, and an air inlet, the nozzle seat arranged along a flow axis. The air blast nozzle is seated in the nozzle seat and has a unibody. The air blast nozzle unibody is in fluid communication with the fuel inlet and the air inlet arranged along the flow axis to port fuel and air into a combustion volume, e.g., to heat a stream of exhaust gas flowing between an engine and a catalytic reactor by combustion with fuel introduced through the fuel inlet and air introduced through the air inlet.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: September 14, 2021
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Steven J. Myers, Philip E. O. Buelow, Lev Alexander Prociw
  • Patent number: 10900373
    Abstract: Various methods and systems are provided for generating exhaust energy and converting exhaust energy to electrical energy while an engine is not running. In one example, a system for an engine comprises: a first turbocharger including a first compressor driven by a first turbine, the first turbine disposed in an exhaust of the engine; a fuel burner fluidly coupled to the exhaust upstream of the first turbine; a generator coupled to one of the first turbine or an auxiliary, second turbine fluidly coupled to the exhaust downstream of the fuel burner; and one or more bypass valves configured to adjust a flow of air that bypasses the engine and is delivered to the fuel burner.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: January 26, 2021
    Assignee: Transportation Holdings, LLC
    Inventors: James Robert Mischler, Roy James Primus, Thomas Michael Lavertu
  • Patent number: 10844764
    Abstract: A dosing and mixing arrangement including an exhaust conduit defining a central axis; a mixing conduit positioned within the exhaust conduit; a dispersing arrangement (e.g., a mesh) disposed at the upstream end of the mixing conduit; an injector coupled to the exhaust conduit and configured to direct reactants into the exhaust conduit towards the mesh; and an annular bypass defined between the mixing conduit and the exhaust conduit for allowing exhaust to bypass the upstream end of the mixing conduit and to enter the mixing conduit downstream of the mesh.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: November 24, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Mark Thomas Brandl, Bruce Hoppenstedt, Stephen Ronald Schiller, Matthew S. Whitten
  • Patent number: 10815854
    Abstract: Disclosed is a system for injecting an agent for reducing oxides of nitrogen into an exhaust line of an internal combustion engine vehicle, including: a pump for drawing the reducing agent from a tank and introducing it into the exhaust line; an injector for introducing the reducing agent into the exhaust line; an electronic unit for driving both the injector and the pump; a pipe for supplying the reducing agent linking the pump to the injector; an electrical cable for heating the supply pipe, the pump being arranged a certain distance away from the injector, and the electronic unit for driving both the injector and the pump being arranged in a module with the pump and connected to the injector via an electrical control cable, the latter being associated with the pipe for supplying the injector with the reducing agent.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: October 27, 2020
    Assignees: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Pascal Barbier
  • Patent number: 10662842
    Abstract: In an engine which includes an oxidation catalyst and an SCR catalyst in an exhaust passage, a first flow regulating control in which a control valve is controlled so as to decrease a flow rate of an exhaust gas which passes through the oxidation catalyst and the SCR catalyst is performed in a case where the oxidation catalyst is in a low temperature state at the time of performing deceleration fuel cut, and a second flow regulating control in which the control valve is controlled so as to increase the flow rate of the exhaust gas which passes through the oxidation catalyst and the SCR catalyst is performed in a case where the oxidation catalyst is in a temperature state higher than the low temperature state and the SCR catalyst is in a low temperature state at the time of performing the deceleration fuel cut.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: May 26, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Masato Katsuta, Yasunori Uesugi, Hiroshi Minamoto
  • Patent number: 10473020
    Abstract: Methods and systems are provided for reducing engine emissions using a branched exhaust system. In one example, a branched exhaust system may include a plurality of sub-branches each housing a distinct exhaust component, and an order of exhaust flow through each of the exhaust components may be adjusted based on engine operating conditions and temperature demand of the distinct components.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: November 12, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 10458303
    Abstract: A vehicular urea pump module includes a structure capable of preventing urea from permeating into electrical elements such as a pump, a heater, and a sensor of the urea pump module; a structure capable of easily defrosting frozen urea; a structure of separating foreign substances; a structure of reducing vibration noise; a structure of enabling the discharge and suction of urea using a single pump; and a structure of increasing the efficiency of assembly for ease of assembly of respective elements.
    Type: Grant
    Filed: December 3, 2017
    Date of Patent: October 29, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundam Industrial Co., Ltd.
    Inventors: Sung Won Lee, Seung Hoon Choi, June Young Park, Tae Yoon Lee, Jun Sik Lim, Yong Taek Hwang, Chan Yo Jeon
  • 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: 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: 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: 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: 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: 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: 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: 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: 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