Residue Burned Patents (Class 55/282.3)
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Patent number: 11808240Abstract: An engine air filter for heavy dust conditions such as used in heavy military and off-road vehicles, including a scavenging system, and a method of operation thereof. The air filter includes: a housing, a precleaner, a permeable filter, and a scavenger system. The scavenger system disposes of particles collected at the precleaner and on the upstream surface of the permeable filter. The scavenger system includes: an air suction source and a three way valve. The three way valve is airflow coupled to the precleaner, to the permeable filter and to the air suction source. The three way valve enables scavenging of the precleaner and the permeable filter alternately. Optionally, the air filter may further includes a pulse jet back-flow flush system.Type: GrantFiled: January 3, 2019Date of Patent: November 7, 2023Assignee: BETH-EL ZIKHRON YAAQOV INDUSTRIES LTD.Inventors: Samuel Koeger, Jonathan Schneider
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Patent number: 11603786Abstract: A system for providing microwave energy to aftertreatment devices that treat the exhaust of an internal combustion engine. The system has a microwave generator and a transmission network for delivering the microwaves to one or more of the aftertreatment devices. The transmission network comprises a combination of solid and hollow waveguides. Antenna(s) transmit microwave energy into the working chamber the aftertreatment device(s), with at least one of the devices having antenna(s) capable of distributing microwave energy throughout its chamber.Type: GrantFiled: April 14, 2022Date of Patent: March 14, 2023Assignee: Southwest Research InstituteInventors: Yilun Luo, Terry Alger, Scott Hotz, Christopher Suhocki
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Patent number: 11454151Abstract: A method is disclosed for cleaning a component of an exhaust aftertreatment system located downstream of a combustion engine in an exhaust flow path delimited by an outer wall. The exhaust aftertreatment system includes a first device releasably mounted in the outer wall upstream of the component and a second device releasably mounted in the outer wall downstream of the component, each of the devices being a sensor or an injector. The method includes sealing the exhaust flow path upstream of the first device and downstream of the second device, removing at least the first and second devices, thereby providing at least two openings in the outer wall, so that a cleaning flow path is provided, and introducing cleaning fluid into at least one of the openings, so that the cleaning fluid flows across the component via the cleaning flow path.Type: GrantFiled: August 20, 2021Date of Patent: September 27, 2022Assignee: Volvo Truck CorporationInventors: Fredrik Blomgren, Soran Shwan, Kunpeng Xie
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Patent number: 11148128Abstract: A honeycomb structure, including: a pillar-shaped honeycomb structure body having a first end face and a second end face and including a porous partition wall disposed so as to surround a plurality of cells, the plurality of cells extending from the first end face to the second end face and serving as a through channel of fluid, wherein the partition wall has a porosity of 45 to 65%, the partition wall has an average pore diameter of 15 to 25 ?m, and the partition wall has a cumulative pore volume, which is measured by mercury intrusion porosimetry, such that a pore volume ratio of pores having pore diameters of 10 ?m or less relative to the overall pore volume of the partition wall is 10% or less, and a pore volume ratio of pores having pore diameters of 40 ?m or more is 10% or less.Type: GrantFiled: February 21, 2019Date of Patent: October 19, 2021Assignee: NGK Insulators, Ltd.Inventor: Hirotaka Yamamoto
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Patent number: 11014028Abstract: Disclosed is a method for preparation and activation of a super hydrophobic electret nanofibrous filter material for cleaning PM2.5, comprising the steps as follows: (1) dissolving polymer powders and resin into a corresponding solvent so as to prepare a polymer solution, then stirring on a magnetic stirrer and standing for use; (2) in order to reinforce the electrostatic effect of the fiber, before preparing the polymer solution, adding in organic electret nanoparticles into the solvent, then oscillating with an ultrasonic oscillator; (3) in order to reinforce the super hydrophobic effect of the filter, spraying a low surface energy solution on the prepared nanofiber with a designed nozzle to carry out modification.Type: GrantFiled: September 10, 2016Date of Patent: May 25, 2021Inventors: Lizhi Zhang, Aibing Bao, Rongrong Cai
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Patent number: 10830117Abstract: An exhaust aftertreatment assembly and method of manufacturing and operating an exhaust aftertreatment assembly. An exhaust aftertreatment assembly includes an aftertreatment housing and an inlet conduit coupled to the aftertreatment housing at an inlet port so as to transfer exhaust gas into the aftertreatment housing. An inlet chamber is positioned in the aftertreatment housing. The inlet chamber is fluidly coupled to the inlet port of the aftertreatment housing to receive the exhaust gas from the inlet conduit.Type: GrantFiled: December 22, 2015Date of Patent: November 10, 2020Assignee: Cummins Emission Solutions Inc.Inventors: Randolph G. Zoran, David M. Sarcona, Ryan M. Johnson, Enoch Nanduru
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Patent number: 10830116Abstract: An exhaust gas system (1) has a main flow path (2) with an exhaust gas aftertreatment device (4), and a bypass flow path (3) that has a fan (5) and a heating apparatus (6). The bypass flow path (3) has opposite ends connected to the main flow path (2) in regions upstream and downstream of the exhaust gas aftertreatment device (4). A shut-off (7) is arranged in the main flow path (2) upstream of the bypass flow path, and a further shut-off (8) is arranged in the main flow path downstream of the bypass flow path.Type: GrantFiled: March 21, 2019Date of Patent: November 10, 2020Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Thomas Laube, Michael Wessels
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Patent number: 10815976Abstract: An actuator device comprises an actuator wire, a net-shaped heating element which covers a side surface of the actuator wire and comprises heating wires, and a controller for supplying electric power to the net-shaped heating element to heat the net-shaped heating element. The actuator wire is contracted by application of heat and restored by release of the heat. The side surface of the actuator wire is formed of a polymer. One end of the net-shaped heating element is connected to an end of the actuator wire. Another end of the net-shaped heating element is connected to another end of the actuator wire. Each of the heating wires comprises an insulative first elastic yarn and a metal wire. The metal wire are helically wound onto the first elastic yarn. When the net-shaped heating element is not heated, the net-shaped heating element is in contact with the side surface of the actuator wire.Type: GrantFiled: August 22, 2019Date of Patent: October 27, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuriko Kaneko, Maki Hiraoka, Naoki Hayashi, Kenji Tagashira
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Patent number: 10724457Abstract: In a method for the regeneration of a particulate filter or of a four-way catalytic converter in an exhaust system of an internal combustion engine, an increase in the nitrogen oxide emissions during the regeneration of the particulate filter or of the four-way catalytic converter can be prevented or at least reduced. A particulate filter or a four-way catalytic converter is arranged in the exhaust system of an internal combustion engine. The fuel injection and the ignition are switched off in response to a request for the internal combustion engine to be turned off. Due to mass inertia, the internal combustion engine transitions from the switch-off rotational speed to a standstill whereby, during this phase, oxygen-rich air is conveyed into the exhaust passage.Type: GrantFiled: May 18, 2018Date of Patent: July 28, 2020Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventor: David Sudschajew
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Patent number: 10619548Abstract: A particulate detection system detects the amount of particulates contained in filtered exhaust gas which has passed through a filter and is discharged to the outside of the vehicle. The particulate detection system includes a sensor disposed on the downstream side of the filter; a sensor circuit section which drives the sensor and obtains in real time a sensor output corresponding to the volumetric particulate amount of the particulates contained in the filtered exhaust gas; and a computation section which computes a distance particulate amount which is the weight or number of the particulates discharged per unit travel distance on the basis of the sensor output obtained by the sensor circuit section, travel distance of the vehicle, and flow rate of the exhaust gas.Type: GrantFiled: August 29, 2018Date of Patent: April 14, 2020Assignee: NGK Spark Plug Co., LTD.Inventor: Takeshi Sugiyama
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Patent number: 10598062Abstract: The exhaust purification system of an internal combustion engine 1 comprises: a catalyst 28 arranged in an exhaust passage 27 of the internal combustion engine, a fuel feed device 3, 35 feeding fuel to the catalyst, and a control device 80 configured to control the feed of fuel by the fuel feed device. The control device is configured to feed liquid state fuel from the fuel feed device to the catalyst when judging that a ratio of high viscosity components in particulate matter deposited on the catalyst is a predetermined value or less.Type: GrantFiled: December 14, 2017Date of Patent: March 24, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Ryohei Yamamoto, Toshihiro Mori
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Patent number: 10566221Abstract: The inventive concepts provide apparatuses for transferring a substrate and/or apparatuses for processing a substrate including the same. The substrate transferring apparatus including a chamber, a filter assembly disposed in a chamber to provide external air into the chamber, and an additional assembly including a moisture removing part and a purge gas providing part sequentially stacked on the filter assembly may be provided. The filter assembly may be coupled to the additional assembly.Type: GrantFiled: September 26, 2018Date of Patent: February 18, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun Sun Choi, Yun-Kwang Jeon, Taekyun Kang
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Patent number: 10499486Abstract: Devices and methods for generating a plasma in a liquid are provided. A low-dielectric material can be placed in contact with the liquid to form an interface a distance from an anode. A voltage can be applied across the anode and a cathode submerged in the liquid to produce the plasma. A variety of devices are provided, including for continuous operation. The devices and methods can be used to generate a plasma in a variety of liquids, for example for water treatment, hydrocarbon reformation, or synthesis of nanomaterial.Type: GrantFiled: February 3, 2017Date of Patent: December 3, 2019Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Min Suk Cha, Ahmad Bassam Hamdan
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Patent number: 10385744Abstract: A method for producing a gasoline engine exhaust gas system having a particulate filter includes using at least one spacer for positioning at least two components provided for the passage of exhaust gas from the engine. The spacer includes ash-forming constituents. The method then includes permanently connecting the components, and burning the spacer element during a first heating up of the exhaust gas system, thereby releasing the ash-forming constituents and depositing the ash-forming constituents on the particulate filter. An exhaust gas system of a gasoline engine also is provided in a state before a first heating up of the exhaust gas system. The exhaust gas system includes a burnable spacer element between two exhaust gas system components that are provided for the passage of exhaust gas. The burnable spacer elements include ash-forming constituents.Type: GrantFiled: April 11, 2018Date of Patent: August 20, 2019Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventor: Michael Wessels
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Patent number: 10294839Abstract: An engine system includes a compression ignition diesel engine connected with an aftertreatment system. A source of diesel fuel, which may have a high sulfur content, is fluidly connected to the engine. The aftertreatment system includes a particle trap fluidly positioned between the engine and the tailpipe, and an SCR catalyst fluidly positioned on the particle trap or between the particle trap and the engine. The SCR catalyst is a sulfur tolerant SCR catalyst. A non-thermal particle trap regeneration system includes a valve fluidly positioned between a particulate volume and an inlet to the particle trap. A reductant system has a doser positioned, possibly in the exhaust manifold, to deliver a reductant into the aftertreatment system upstream from the SCR catalyst.Type: GrantFiled: April 11, 2016Date of Patent: May 21, 2019Assignee: Illinois Valley Holding CompanyInventor: Brett Bailey
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Patent number: 10167763Abstract: Methods and systems are provided for a door of an exhaust system of an engine. In one example, a door of an exhaust system may include an outer door pivotable around a first location and an inner door pivotable around a second location, with the inner door positioned within the outer door, and with an amount of opening of an aperture of the outer door adjustable by a position of the inner door.Type: GrantFiled: August 30, 2016Date of Patent: January 1, 2019Assignee: Ford Global Technologies, LLCInventor: Timothy Baxendale
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Patent number: 10040016Abstract: A plugged honeycomb structure including: a pillar-shaped honeycomb structure body having porous partition walls made of a material including silicon carbide, and plugging portions, wherein a porosity of the partition walls is from 42 to 52%, a thickness of the partition walls is from 0.15 to 0.36 mm, a ratio of a volume of pores having pore diameters of 10 ?m or less to a total pore volume of the partition walls is 41% or less, a ratio of a volume of pores having pore diameters in a range of 18 to 36 ?m to the total pore volume is 10% or less, the pore diameter indicating a maximum value of the log differential pore volume is in a range of 10 to 16 ?m, and a half-value width of a peak including the maximum value of the log differential pore volume is 5 ?m or less.Type: GrantFiled: January 19, 2018Date of Patent: August 7, 2018Assignee: NGK Insulators, Ltd.Inventors: Tomohiro Iida, Kazuto Miura, Takashi Aoki, Osamu Yasui
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Patent number: 9976501Abstract: Methods and systems are provided for inverting a particulate filter housing. In one example, a method may include inverting the particulate filter housing to dislodge an ash load in the particulate filter.Type: GrantFiled: October 26, 2015Date of Patent: May 22, 2018Assignee: Ford Global Technologies, LLCInventor: Michael Solger
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Patent number: 9739223Abstract: Methods and systems are provided for an emission control device for an engine system including a gasoline particulate filter (GPF) and bypass passage for the GPF. In one example, the system may include a converging cone to direct exhaust flow through a central bypass passage, housing a valve, which originates upstream of the GPF and eventually passes through the center of it (thereby bypassing the GPF). In another example exhaust flow may travel through outer passages, coupled between the converging cone and GPF and spaced around the central bypass passage, to travel to the GPF.Type: GrantFiled: November 18, 2015Date of Patent: August 22, 2017Assignee: Ford Global Technologies, LLCInventors: James David Pakko, Mark Kreger, Jimmy Theis
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Patent number: 9645068Abstract: Methods and systems are provided for determining degradation of a particulate filter in an exhaust conduit. In one example, a method may include diverting exhaust gas to a secondary soot sensor assembly comprising a second filter downstream of a first filter, and determining degradation based on time intervals between subsequent filter regenerations of the second filter in the secondary soot sensor assembly.Type: GrantFiled: February 11, 2016Date of Patent: May 9, 2017Assignee: Ford Global Technologies, LLCInventor: Xiaogang Zhang
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Patent number: 9512757Abstract: A proportional heater controls a diesel powered electrical generator with a diesel particulate filter (DPF). A proportional control is applied to the heater based upon exhaust temperature. The heater heats exhaust gas to a regeneration temperature to remove soot and sulphur from the processed gas when the diesel fuel has a sulphur content exceeding 1,000 ppm. The heater is supplied power via SCRs to reduce electromagnetic and radio frequency interference. A manual override permits the operator to set a temperature setpoint, force the heater to meet a certain temperature and establish a load bank for diesel engine electrical generator set.Type: GrantFiled: June 12, 2015Date of Patent: December 6, 2016Inventor: Richard Boggs
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Publication number: 20150143994Abstract: The present invention relates to a “dry” particulate filtering apparatus for diesel engines, in particular for marine diesel engines, as well as a method of operation and regeneration of said apparatus. The apparatus according to the present invention is characterised in that it comprises a plurality of independent compartments which are arranged in parallel with respect to the flow of the exhaust gases to be treated, and in that it comprises, on each of said compartments, shut-off means that allow a single compartment to be excluded from the filtering during the regeneration operations of the filtering means, which primarily takes place by means of a countercurrent pulse of compressed air flowing into the filtering means.Type: ApplicationFiled: May 31, 2013Publication date: May 28, 2015Applicant: ECOSPRAY tECHNOLOGIES S.R.L.Inventor: Maurizio Archetti
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Patent number: 9034065Abstract: A diesel particulate defuser (DPD) for collecting particulate matter (PM) in exhaust gas is connected to an exhaust pipe of a diesel engine, and when the amount of PM in the DPD becomes equal to or greater than a predetermined amount, the exhaust gas temperature of the diesel engine is increased by performing exhaust pipe injection and DPD is automatically regenerated. In such an exhaust gas purification system, an exhaust gas temperature during DPD regeneration in automatic regeneration is detected, a difference between the detected exhaust gas temperature and a target regeneration temperature is determined, and in a case where an exhaust pipe injection amount is PID controlled based on the difference, when a transition is made from the traveling automatic regeneration to the idle automatic regeneration conducted during a stop, an integral control term in the PID control is reset to zero to control the exhaust pipe injection amount.Type: GrantFiled: June 10, 2011Date of Patent: May 19, 2015Assignee: ISUZU MOTORS LIMITEDInventors: Takashi Ikeda, Tetsuya Asami, Hitoshi Satou
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Patent number: 8974563Abstract: An exhaust gas purification system includes a diesel particulate filter (“DPF”) which collects particulate matter (“PM”) in exhaust gas, an exhaust pipe injector which performs exhaust pipe injection, and a DPF regeneration control unit which performs temperature rise control of an exhaust gas temperature by the exhaust pipe injection to regenerate the DPF when the PM collected by the DPF exceeds a fixed amount and which, during the regeneration, integrates an amount of time during which the exhaust gas temperature exceeds a PM combustion temperature and completes the regeneration when an integrated value thereof reaches a set regeneration completion value. The DPF regeneration control unit aborts the regeneration when, during regeneration, a total amount of the exhaust pipe injection exceeds an upper limit before the integrated value.Type: GrantFiled: June 10, 2011Date of Patent: March 10, 2015Assignee: Isuzu Motors LimitedInventors: Takashi Haseyama, Shinji Gotou, Hiroyuki Oohira
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Patent number: 8943809Abstract: A control apparatus for an internal combustion engine detects an amount of particulate matter contained in an exhaust gas in an exhaust passage, according to an electrical property across electrodes of a particulate matter sensor disposed in the exhaust passage of the internal combustion engine. The term “electrical property” here refers to a property that changes with the amount of particulate matter deposited, for example, a current value of when a predetermined voltage is applied. After the internal combustion engine is started and detection of the amount of the particulate matter is completed, an element section of the particulate matter sensor is set to a predetermined temperature range. The particulate matter deposited on the element section is thereby burned and removed. The control apparatus maintains the element section in the predetermined temperature range after burning and removing the particulate matter until the internal combustion engine stops.Type: GrantFiled: March 15, 2011Date of Patent: February 3, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keiichiro Aoki, Hiroki Nishijima
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Patent number: 8936760Abstract: An exhaust gas purification apparatus is provided with: a first soot-accumulation calculation unit 49 which calculates a first soot accumulation amount from an operation state of the engine; a second soot-accumulation calculation unit 51 which calculates a second soot accumulation amount from a total operation time of the engine, a total fuel consumption rate, a pressure difference between front and back of the particulate filter, and the like; a first soot-accumulation correction unit 55 which corrects the first soot accumulation amount calculated by the first soot-accumulation calculation unit 49 to a value greater than the first soot-accumulation amount when the active regeneration starts based on the second soot accumulation amount calculated by the second soot-accumulation calculation unit 51; and a regeneration ending unit 57 which ends the active regeneration when, in such a case that the active regeneration starts based on the corrected soot accumulation amount, the first soot accumulation amount becoType: GrantFiled: January 26, 2011Date of Patent: January 20, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Ko Takayanagi
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Patent number: 8932379Abstract: An exhaust gas purification system with which diesel particulate filter (“DPF”) regeneration can be continued even when deceleration occurs during the DPF regeneration. The system includes a regeneration deceleration period intake/exhaust control unit that, when a vehicle decelerates during the DPF regeneration, increases an exhaust gas flow rate through an exhaust pipe by controlling respective openings of an exhaust gas recirculation (“EGR”) device and an intake throttle and adjusting a turbocharging amount of a high pressure stage turbocharger.Type: GrantFiled: June 10, 2011Date of Patent: January 13, 2015Assignee: Isuzu Motors LimitedInventors: Takashi Ikeda, Takayuki Mukunashi, Hiroyuki Ishikawa
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Patent number: 8919104Abstract: A control apparatus for an internal combustion engine detects an amount of particulate matter contained in an exhaust gas in an exhaust passage, according to an electrical property across electrodes of a particulate matter sensor disposed in the exhaust passage of the internal combustion engine. The term “electrical property” here refers to a property that changes with the amount of particulate matter deposited, for example, a current value of when a predetermined voltage is applied. After the internal combustion engine is started and detection of the amount of the particulate matter is completed, an element section of the particulate matter sensor is set to a predetermined temperature range. The particulate matter deposited on the element section is thereby burned and removed. The control apparatus maintains the element section in the predetermined temperature range after burning and removing the particulate matter until the internal combustion engine stops.Type: GrantFiled: March 15, 2011Date of Patent: December 30, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keiichiro Aoki, Hiroki Nishijima
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Patent number: 8881510Abstract: A control apparatus for an internal combustion engine detects an amount of particulate matter contained in an exhaust gas in an exhaust passage, according to an electrical property across electrodes of a particulate matter sensor disposed in the exhaust passage of the internal combustion engine. The term “electrical property” here refers to a property that changes with the amount of particulate matter deposited, for example, a current value of when a predetermined voltage is applied. After the internal combustion engine is started and detection of the amount of the particulate matter is completed, an element section of the particulate matter sensor is set to a predetermined temperature range. The particulate matter deposited on the element section is thereby burned and removed. The control apparatus maintains the element section in the predetermined temperature range after burning and removing the particulate matter until the internal combustion engine stops.Type: GrantFiled: March 15, 2011Date of Patent: November 11, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keiichiro Aoki, Hiroki Nishijima
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Publication number: 20140322091Abstract: A method and an arrangement for cleaning a particulate filter in a vehicle provided with an internal combustion engine is provided. The particulate filter is mounted in an operative position inside an exhaust muffler under normal operation of the engine. The method involves performing a cleaning process including disassembling and removing the particulate filter from a first end of the muffler; reversing and reassembling the particulate filter a cleaning position at the first end of the muffler; starting and operating the engine by controlling the engine speed according to a predefined cycle until a predetermined condition is fulfilled; and stopping the engine and returning the particulate filter to its operative position inside the exhaust muffler.Type: ApplicationFiled: January 3, 2012Publication date: October 30, 2014Applicant: VOLVO LASTVAGNAR ABInventor: Gert-Ove Wahlström
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Patent number: 8844270Abstract: The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.Type: GrantFiled: January 19, 2010Date of Patent: September 30, 2014Assignee: Donaldson Company, Inc.Inventors: John T. Herman, Mary J. Lorenzen, Wenzhong Zhang, Joanne Wagner
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Patent number: 8845798Abstract: A particulate matter detecting apparatus for an internal combustion engine that can estimate a discharge amount of the particulate matter accurately. The particulate matter detecting apparatus for an internal combustion engine, comprises: a sensor disposed at an exhaust passage of the internal combustion engine, the sensor including a pair of electrodes for detecting particulate matter in an exhaust gas; means for estimating a discharge amount of the particulate matter based on an output of the sensor, and means for acquiring a predetermined parameter that serves as an index for a rate with which the particulate matter in the exhaust gas is deposited on the sensor. The discharge amount estimating means corrects an estimated value of the discharge amount of the particulate matter based on the parameter acquired by the parameter acquiring means.Type: GrantFiled: December 7, 2010Date of Patent: September 30, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroki Nishijima
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Publication number: 20140238233Abstract: A flame detection system is disclosed. The system may have a flame chamber and a filter, wherein the filter includes filter media configured to collect matter from an engine exhaust. Additionally, the filter may be disposed downstream of the flame chamber. An ignition device may be disposed in the flame chamber and may be configured to ignite a flame in the flame chamber to regenerate the filter. A sensor may be disposed proximate the ignition device, and may be configured to sense a change in electrical conductivity that is indicative of a presence of the flame in the flame chamber.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Applicant: CATERPILLAR INC.Inventors: Sergey Korenev, William Love, Kevin Dea, Jason Bloms, Timothy Feucht, Richard Holland
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Patent number: 8801818Abstract: A method for cleaning and checking a particle filter of a motor vehicle is provided. In a first step soot particles which have collected in the particle filter are burnt off. In a second step ash located in the particle filter is blown out using compressed air. A cleaning device for a particle filter of a motor vehicle is also provided.Type: GrantFiled: May 14, 2012Date of Patent: August 12, 2014Assignee: Daimler AGInventors: Andreas Albrecht, Peter Benz, Charles W. Emley, Uwe Gaertner, Christian Medau
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Patent number: 8801822Abstract: An exhaust gas aftertreatment system for an engine can perform manual regeneration control for regenerating a particulate removal filter by increasing the engine rotation speed. The system can suppress the engine rotation speed increase while maintaining the exhaust gas temperature required to regenerate the particulate removal filter. The system can set the target engine rotation speed to a first set value when a regeneration instruction signal from a manual regeneration switch is received. When, although the engine rotation speed falls within a predetermined engine rotation speed range including the first set value that is the target engine rotation speed for a predetermined time period, the exhaust gas temperature does not reach the filter's regeneration temperature within the predetermined time period, the target engine rotation speed is repeatedly reset by being increased from the first set value by a predetermined rotation speed.Type: GrantFiled: February 16, 2011Date of Patent: August 12, 2014Assignee: Yanmar Co., Ltd.Inventors: Hideo Shiomi, Taichi Togashi
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Patent number: 8784539Abstract: The invention relates to diesel soot particulate filter cartridge having a central filter cartridge axis. The filter cartridge has a radial flow. The filter cartridge comprises a porous structure. The porous structure is coiled around the central filter cartridge axis. The porous structure comprises non-sintered metal fibers, said fibers having a roughness being higher than 1.7. The invention further relates to a method of manufacturing a diesel soot particulate filter cartridge. Furthermore the invention relates to a multicartridge diesel soot particulate filter. The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial.Type: GrantFiled: June 23, 2010Date of Patent: July 22, 2014Assignee: NV Bekaert SAInventors: Inge Schildermans, Johan Vandamme, Frank Verschaeve
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Patent number: 8778041Abstract: In an exhaust gas treatment device provided with: an exhaust gas treatment unit in which an oxygen combustion boiler 1 using coal as fuel, a denitration device 3, an air preheater 4, a dust-collection device 5, a desulfurization device 6, and a carbon dioxide recovery device 8 are sequentially arranged from the upstream side to the downstream side of an exhaust gas duct; and an exhaust gas circulation unit which branches off from the exhaust gas duct at an outlet of the dust-collection device 5 or an outlet of the desulfurization device 6 and through which the exhaust gas is preheated by the air preheater 4 and returned to the oxygen combustion boiler 1, a heat-recovery heat exchanger 13 that adjusts a gas temperature at an inlet of the dust-collection device 5 to be not greater than an acid dew point of SO3 and not lower than a water dew point is provided between the air preheater 4 and the dust-collection device 5, a reheating heat exchanger 13 that adjusts a gas temperature to be not lower than the acid deType: GrantFiled: November 19, 2010Date of Patent: July 15, 2014Assignee: Babcock-Hitachi Kabushiki KaishaInventors: Yoshiaki Mitsui, Hidehisa Yoshizako, Noriyuki Imada, Naoki Oda
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Patent number: 8769938Abstract: The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.Type: GrantFiled: February 21, 2012Date of Patent: July 8, 2014Assignee: Donaldson Company, Inc.Inventors: Wayne M. Wagner, John T. Herman, Mary J. Lorenzen, Wenzhong Zhang
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Patent number: 8758464Abstract: The disclosed exhaust treatment device for a diesel engine can prevent heat damage to a DPF when regenerating said DPF. If a selection device (7), which selects whether to allow or prohibit an automatic DPF regeneration process, is set to prohibit the automatic DPF regeneration process, a DPF regeneration control device (4) is made able to start a process to cancel execution of the automatic DPF regeneration process. If the selection device (7) is set to allow the automatic DPF regeneration process, the DPF regeneration control device (4) retracts the cancellation of the automatic DPF regeneration process, allowing execution of the previously-cancelled automatic DPF regeneration process to begin.Type: GrantFiled: March 16, 2011Date of Patent: June 24, 2014Assignee: KUBOTA CorporationInventors: Yasuo Fujii, Masanori Fujiwara, Katsushi Inoue, Yuuki Ishii, Kenta Mitamura, Noriyoshi Eguchi, Yongchol Lee, Tomohiro Ninomiya
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Publication number: 20140157982Abstract: A method for implementing particulate filter regeneration management is provided. The method includes determining a presumptive deviation between a particulate model and actual particulate level conditions of the particulate filter. The presumptive deviation is determined from identification of an occurrence of extended parking, a passive regeneration, residual particulates, and a pressure signal. Each of the extended parking, passive regeneration, residual particulate, and pressure signal is specified by a respective particulate model deviation type. The method also includes selectively controlling current to at least one zone of a plurality of zones of an electric heater to initiate a regeneration event based on the presumptive deviation, and estimating the particulate level in the particulate filter once the regeneration event is complete.Type: ApplicationFiled: December 12, 2012Publication date: June 12, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michelangelo Ardanese, Raffaello Ardanese, Michael J. Paratore, JR., Eugene V. Gonze
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Patent number: 8747502Abstract: A particulate matter reduction apparatus for a diesel engine, which can reduce particulate matter in a convenient manner with a relatively simple structure, while preventing the shortening of the lifespan of a filter and improving particulate matter burning efficiency, is provided. The particulate matter reduction apparatus includes a housing configured to be placed on a flow path into which exhaust gas is discharged from the diesel engine, a filter configured to collect particulate matter contained in the exhaust gas that flows in the housing, electrodes configured to transmit electronic signals to the filter, and a control unit configured to control the electric signals provided to the electrodes. The particulate matter reduction apparatus is advantageous in that particulate matter is burnt and removed by directly heating the filter. In addition, the apparatus is more convenient, compared to a system which requires a filter to be separated and cleaned.Type: GrantFiled: February 23, 2009Date of Patent: June 10, 2014Assignee: Industry-Academic Cooperation Foundation, Jeju National UniversityInventors: Heon-Ju Lee, Vadim Yurevich Plaksin
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Publication number: 20140130665Abstract: An exhaust gas treatment system for an internal combustion engine is provided comprising an exhaust gas conduit, a particulate filter (“PF”) device, a hydrocarbon source and an electronic control module including operative logic which when implemented. The PF has a filter structure for removal of particulates in the exhaust gas and is selectively regenerated based on an amount of particulates trapped within the filter structure of the PF device. The control module is in communication with the internal combustion engine and the hydrocarbon source, and receives a regeneration signal indicating the amount of particulates trapped within the filter structure of the PF device. The electronic control module includes control logic for monitoring the internal combustion engine prior to a regeneration event. The electronic control module includes control logic for determining a plurality operating parameters of the internal combustion engine based on the monitoring.Type: ApplicationFiled: November 13, 2012Publication date: May 15, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Eugene V. Gonze, Michael J. Paratore, JR., Julian C. Tan
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Publication number: 20140116247Abstract: A regeneration control device of a diesel particulate filter, includes: a regeneration control unit configured to combust particulate matter accumulated in a diesel particulate filter that removes the particulate matter from exhaust gas of an engine and regenerate the diesel particulate filter when an accumulation amount of the particulate matter accumulated in the diesel particulate filter exceeds a predetermined value, wherein the regeneration control unit is configured to perform lower limit control in which a lower limit of an engine speed is set to a value greater than or equal to a predetermined threshold value during the regeneration.Type: ApplicationFiled: April 16, 2012Publication date: May 1, 2014Applicant: KOMATSU LTD.Inventors: Tatsuro Nakazato, Shuhei Kawaoka
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Patent number: 8696776Abstract: An abnormality determination apparatus includes a particulate filter provided in the exhaust passage of an internal combustion engine that collects particulate matter in the exhaust gas discharged from the internal combustion engine, a particulate matter deposition amount detection device provided downstream of the particulate filter, and a abnormality determination portion. The particulate matter deposition amount detection device includes a detecting element that detects the particular matter that flows toward the particulate matter deposition amount detection device and that is not trapped by the particulate filter, and then outputs a value corresponding to a deposition amount deposited the particulate matter on the detecting element. The abnormality determination portion determines, whether an abnormality is present in the particulate filter based on the gradient of an output waveform of the particulate matter deposition amount detection device.Type: GrantFiled: March 8, 2011Date of Patent: April 15, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroki Nishijima
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Patent number: 8679209Abstract: A method for removing matter from a filter is disclosed. The method may include measuring loading conditions of a filter media. The method may also include applying at least one voltage pulse between an electrode external to the filter media and a housing of the filter media to induce a plurality of shock waves directed toward the filter media, based on the loading conditions.Type: GrantFiled: December 20, 2011Date of Patent: March 25, 2014Assignee: Caterpillar Inc.Inventor: Sergey Korenev
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Patent number: 8671668Abstract: A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.Type: GrantFiled: January 18, 2008Date of Patent: March 18, 2014Inventors: Eugene V. Gonze, Michael J. Paratore, Jr.
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Patent number: 8641791Abstract: The invention concerns a method for supplying iron, via the fuel, to the particulate trap of a diesel engine exhaust in a form suitable for promoting trap regeneration. The method involves the addition to the fuel of a defined colloid of iron oxide. Combustion of this colloid produces iron-containing compounds, especially iron oxides, which collect in association with carbonaceous particulate matter in the particulate trap, and function to promote the combustion of this matter. The colloid in particular shows a lower level of associated deposit formation on the fuel injectors than the iron additives of the prior art. The method is thus particularly suitable for modern engines showing increased susceptibility to fuel injector deposits. The colloid also shows a balance of properties providing excellent suitability for use as an additive in fuels, and especially in diesel engine on-board dosing devices.Type: GrantFiled: March 7, 2008Date of Patent: February 4, 2014Assignee: Infineum International LimitedInventor: Russell M. Thompson
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Publication number: 20140013949Abstract: Ignition system for reliable starting and maintaining regeneration process of Diesel particulate filer wherein the said ignition system is composed of a diesel particulate filter inside the exhaust pipe, fuel burner beside the exhaust pipe, ignition system for fuel burner, a tube for supplying the fuel, a tube for air intake, spark plug with a special arrangement of spark gap, battery as electric energy supply, an engine control unit and high voltage screened interconnection cable whereas the ignition system comprises spark plug (5) and glow plug (6) with the air gap (11) formed by central electrode (7) of spark plug (5) and glowing tip (8) of glow plug (6), grounded by fixing point (10), whereas spark is formed in mentioned spark gap (11).Type: ApplicationFiled: September 13, 2013Publication date: January 16, 2014Applicant: HIDRIA AET DRUZBA ZA PROIZVODNJO VZIGNIH SISTEMOV IN ELEKTRONIKE D.O.O.Inventor: Peter URSIC
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Publication number: 20130312329Abstract: A system and method for removing particulates and carbonaceous contaminates and tars from a continuous gas stream, such as a biomass gasifier syngas stream, generated from a combustible source is disclosed. The system and method may include a mechanical filter assembly having an intake to receive the gas stream, an outlet to exhaust the gas stream, and a ceramic fiber filtration media interposing the intake and outlet to remove particle contaminates and tars from the gas stream. A means for regenerating the mechanical filter assembly using an auxiliary heat source communicably coupled to the mechanical filter assembly is also provided and an air-backpulse to remove inorganic ash.Type: ApplicationFiled: May 21, 2013Publication date: November 28, 2013Applicant: Industrial Ceramics Solutions, LLCInventor: Richard D. Nixdorf
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Patent number: 8591614Abstract: A method of manufacturing an exhaust gas purifying apparatus includes providing an exhaust gas-treating body. A holding sealing material is provided. The holding sealing material includes inorganic fibers. The holding sealing material has a first end face and a second end face each provided approximately in parallel with a width direction. The holding sealing material is wound around a periphery of the exhaust gas-treating body to form a gap between the first end face and the second end face. The exhaust gas-treating body with the holding sealing material is housed in a casing. At least one of a first electrode member and a first sensor is disposed at the gap of the holding sealing material so that at least one of the first electrode member and the first sensor is connected to the exhaust gas-treating body, passes through the holding sealing material, and penetrates the casing.Type: GrantFiled: January 18, 2012Date of Patent: November 26, 2013Assignee: Ibiden Co., Ltd.Inventors: Hisashi Ando, Takahiko Okabe