Fixed Annularly Shaped Bed Of Contact Material And Means Directing Gas Therethrough Substantially Perpendicular To Longitudinal Axis Of Bed Patents (Class 422/181)
  • Patent number: 11149617
    Abstract: In one aspect, a system is provided and includes an engine including an exhaust valve, an exhaust manifold downstream of the exhaust valve and a muffler downstream of the exhaust manifold. The system also includes a catalyst positioned downstream of the exhaust valve.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: October 19, 2021
    Assignee: KOHLER CO.
    Inventors: Eric Pekrul, Martin L. Radue
  • Patent number: 10543469
    Abstract: A supported scallop and a support distributor therefor for use in a radial flow reactor. The support distributor includes an elongated sheet having a plurality of perforations extending through a thickness thereof, and at least one edge along a length thereof so as to form a member having at least one support point which engages an inner surface of the scallop.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 28, 2020
    Assignee: Woven Metal Products, Inc.
    Inventors: Russell Hillenburg, Gene Eberhardt, Heather Bennett
  • Patent number: 10358957
    Abstract: Mufflers with unique configurations which, in certain (but not all) embodiments, improve engine performance. In other embodiments, improved manufacturing processes and methods for making mufflers. In particularly preferred embodiments, methods for making motorcycle mufflers with swaging techniques. In still other preferred embodiments, swaged motorcycle mufflers with improved exhaust flow. In still other embodiments, aftermarket mufflers which can be assembled to a variety of engine exhaust systems utilizing a universal coupler.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: July 23, 2019
    Inventors: Jason B. Panther, James B. Panther, Randy Blevins
  • Patent number: 10071356
    Abstract: The present invention describes a catalytic reactor operating as a moving bed to manage interruptions in the circulation of catalyst while at the same time avoiding mechanical damage to the contact means containing the catalyst. The invention also concerns a refining or petrochemicals process using the reactor in accordance with the invention.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: September 11, 2018
    Assignee: AXENS
    Inventor: Fabian Lambert
  • Patent number: 10018093
    Abstract: A vehicular exhaust device is disclosed. The vehicular exhaust device includes an exhaust pipe, which is connected at one end to an exhaust manifold of a cylinder and at the other end to a catalytic converter. In particular, an intermediate portion of the exhaust pipe is in contact with the side surface of the catalytic converter so as to heat the catalytic converter by heat of the exhaust pipe.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: July 10, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Soo Hyung Woo, Woo Tae Kim, Dae Sung Kim, Byeong Seok Lee, Seung Kook Han
  • Patent number: 10006983
    Abstract: A method for detecting azimuthal angle of a heat source includes a preparing step and a detecting step. The preparing step includes: detecting a unit period (Tc) by rotating a target positioning portion through one circle, and aligning the target positioning portion with an aligning member. The detecting step includes: driving the target positioning portion to rotate. The position of the aligning member defines an initial azimuthal position. When an infrared signal emitted from the external heat source is transmitted into an infrared sensor via the target positioning portion, a transmitting time is defined as a time point (Ts) of the heat source, and an angle between the target positioning portion and the initial azimuthal position is defined as an azimuthal angle (?x) of the heat source, in which ?x=(Ts/Tc)×360°.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 26, 2018
    Assignee: EVERSPRING INDUSTRY CO., LTD.
    Inventor: Tzong-Sheng Lee
  • Patent number: 9446370
    Abstract: The invention relates to a reactor system, comprising a heat-exchange unit and a reaction unit that are assembled together into a structure. The heat-exchange unit has a plurality of plate or corrugated-plate heat exchangers, and is formed so as to attachable/detachable to/from the reaction unit and insertable into the latter. Accordingly, a catalyst may be attached to a heat-transfer surface of a heat exchanger by a washcoat method or the like, thus maximizing heat-transfer efficiency and enabling the easy removal or reattachment of the catalyst when the enabling the easy removal or reattachment of the catalyst at the end of the lifespan of the catalyst.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: September 20, 2016
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kyoung Su Ha, Geun Jae Kwak, Jae-Hoon Jung, Joo Young Cheon, Ki Won Jun
  • Patent number: 9279623
    Abstract: A device having a heat exchanger includes a housing having an inlet and an outlet for a fluid and an inner tube having a first end face extending in axial direction, an opposite second end face and a circumferential surface having openings. A plurality of heat exchanger tubes is disposed parallel to the axial direction on the outside of the circumferential surface. The housing encloses the heat exchanger tubes and the inner tube and the inlet is fluidically connected to the first end face. Guide elements are disposed between the heat exchanger tubes so that the fluid entering the inner tube through the first end face flows out across the heat exchanger tubes in radial direction starting from the inner tube. The device is used particularly for constructing a thermoelectric generator for positioning in the underbody of a motor vehicle. A motor vehicle having the device is also provided.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: March 8, 2016
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Sigrid Limbeck, Rolf Brueck
  • Patent number: 9011569
    Abstract: A wall flow type particulate filter (24) adapted to be arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 21, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Otsuki, Shigeki Nakayama, Hiromasa Nishioka, Katsuhiko Oshikawa, Yoshihisa Tsukamoto, Junichi Matsuo, Yuichi Sobue, Daichi Imai, Kou Sugawara
  • Patent number: 9011568
    Abstract: A filter for internal combustion engines, includes a rigid external casing provided with at least an inlet for a fluid to be filtered and an outlet for the fluid when filtered, and a filter cartridge located internally of the external casing, which includes a plurality of tubular filter walls arranged parallel to one another which are destined to be crossed by the fluid flowing from the inlet towards the outlet of the external casing; the external casing being conformed such as to delimit a pouch a transversal section of which, performed along a perpendicular plane to axes of the tubular filter walls, exhibits a prevalent line of development and a small width with respect to the prevalent line of development; the tubular filter walls being arranged internally of the pouch, side by side with one another, forming a single row which follows the prevalent line of development of the pouch.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: April 21, 2015
    Assignee: UFI Innovation Center S.R.L.
    Inventor: Giorgio Girondi
  • Patent number: 8999048
    Abstract: An exhaust gas purifying apparatus for a diesel engine includes a diesel particulate filter (DPF) in an exhaust system in the diesel engine. The exhaust gas purifying apparatus is constructed to execute regeneration of the DPF by raising a temperature of the DPF in a case where a predetermined DPF regeneration condition is fulfilled, interrupt the regeneration of the DPF, execute idling stop, automatically restart the diesel engine and then restart the regeneration of the DPF, and when shifting to the idling operation is carried out during regeneration of the DPF, delay execution of the idling stop until a temperature of the DPF at a time at which the idling stop is started becomes not less than a temperature of the DPF at a time at which shifting to an idling operation is carried out even in a case where the predetermined idling stop condition is fulfilled.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: April 7, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toru Nishizawa, Risa Yamamoto
  • Patent number: 8992652
    Abstract: A filtering device features a ceramic filter body for filtering a fluid flow, the filter body consisting of a wavy layer and a flat layer and the wavy and flat layer being wound in a spiral-shaped manner. The wave length of the waves increases from the inside to the outside with increasing distance to the longitudinal axis of the filter body such that the wave troughs and the wave peaks of at least two radially adjacent windings each lie on a common radial plane.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 31, 2015
    Assignee: Mann+Hummel GmbH
    Inventors: Arndt-Udo Rolle, Frank Ehlen, Kathrin Lichtenwalter, Jochen Linhart, Nadine Dietsch
  • Patent number: 8992651
    Abstract: [Problem] To provide a filter whose initial collection efficiency can be increased and whose pressure loss increase can be suppressed. [Means to solve the problem] A ceramic filter includes: numerous crystalline masses bound to one another each formed of aggregation of columnar crystals, wherein a number of large diameter pores are present between the numerous crystalline masses, and small diameter pores are present between the numerous columnar crystals forming the crystalline mass.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: March 31, 2015
    Assignee: Kubota Corporation
    Inventors: Atsushi Sugai, Hiroshi Yamaguchi
  • Patent number: 8974563
    Abstract: 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: Grant
    Filed: June 10, 2011
    Date of Patent: March 10, 2015
    Assignee: Isuzu Motors Limited
    Inventors: Takashi Haseyama, Shinji Gotou, Hiroyuki Oohira
  • Patent number: 8974570
    Abstract: A retaining seal material includes inorganic fibers, inorganic particles adhering to surfaces of the inorganic fibers, a first principal surface, and a second principal surface. A mean particle diameter of the inorganic particles in a vicinity of a center in a thickness direction of the retaining seal material is smaller than at least one of a mean particle diameter of the inorganic particles in a vicinity of the first principal surface and a mean particle diameter of the inorganic particles in a vicinity of the second principal surface.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 10, 2015
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Okabe, Keiji Kumano
  • Patent number: 8961668
    Abstract: An exhaust gas purification system with which a frequency of diesel particulate filter (“DPF”) regeneration requests can be reduced during long low idle regeneration, thereby improving convenience, including a control unit that performs regeneration control on a DPF provided at an exhaust pipe of an engine. The control unit includes a particulate matter (“PM”) accumulation amount predictor for predicting the amount of PM accumulated by calculating a cumulated value of the PM in an idling state. The control unit starts calculating the cumulated value of the PM by the PM accumulation amount predictor after a first predetermined time has elapsed since a detection of the idling state.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: February 24, 2015
    Assignee: Isuzu Motors Limited
    Inventors: Takashi Haseyama, Hiroyuki Oohira, Shinji Gotou
  • Patent number: 8956436
    Abstract: Disclosed are ceramic bodies comprised of composite cordierite aluminum magnesium titanate ceramic compositions and methods for the manufacture of same.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Corning Incorporated
    Inventors: Adriane Marie Divens-Dutcher, Patrick David Tepesch, Elizabeth Marie Vileno
  • Patent number: 8951323
    Abstract: A hybrid mounting mat for mounting a catalyst support structure within a housing in an exhaust gas treatment device. The exhaust gas treatment device includes an outer housing, a fragile catalyst support structure, and a mounting mat disposed in the gap between the housing and the fragile catalyst support structure. Additionally disclosed are methods of making the hybrid mounting mat and for making an exhaust gas treatment device incorporating the mounting mat.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: February 10, 2015
    Assignee: Unifrax I LLC
    Inventor: Amit Kumar
  • Patent number: 8945269
    Abstract: A holding sealing material includes a mat, an inorganic binder and an organic binder. The mat includes inorganic fibers and has an upper part, a center part, and a lower part in a thickness direction. The inorganic binder is loaded on the mat. The organic binder is loaded mainly on the upper part and the lower part of the mat. The holding sealing material is disposed between an exhaust gas-treating body and a casing for housing the exhaust gas-treating body to form an exhaust gas purifying apparatus.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: February 3, 2015
    Assignee: Ibiden Co., Ltd.
    Inventor: Keiji Kumano
  • Patent number: 8940072
    Abstract: A parallel passage fluid contactor structure for chemical reaction processes has one or more segments, where each segment has a plurality of substantially parallel fluid flow passages oriented in an axial direction; cell walls between each adjacent fluid flow passages and each cell wall has at least two opposite cell wall surfaces. The structure also includes at least one active compound in the cell walls and multiple axially continuous conductive filaments either embedded within the cell walls or situated between the cell wall surfaces. The conductive filaments are at least one of thermally and electrically conductive, are oriented in axially, and are in direct contact with the active compound, and are operable to transfer thermal energy between the active material and the conductive filaments. Heating of the conductive filaments may be used to transfer heat to the active material in the cell walls. Methods of manufacturing the structure are discussed.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 27, 2015
    Assignee: Inventys Thermal Technologies Inc.
    Inventors: Andre Boulet, Soheil Khiavi
  • Patent number: 8932379
    Abstract: 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: Grant
    Filed: June 10, 2011
    Date of Patent: January 13, 2015
    Assignee: Isuzu Motors Limited
    Inventors: Takashi Ikeda, Takayuki Mukunashi, Hiroyuki Ishikawa
  • Patent number: 8926726
    Abstract: A exhaust gas purification device is structured such that it is possible to improve an assembling work ability or a maintenance work ability of gas purifying bodies or exhaust gas purifying cases. In an exhaust gas purification device provided with gas purifying bodies which purify an exhaust gas discharged by an engine, and a gas purifying housing which is provided with the gas purifying bodies therein, the exhaust gas purification device is structured such that a support bracket which supports the gas purifying housing is provided, a bolt hole is formed in the support bracket, an insertion guide is formed in the support bracket, and an attaching bolt is engaged with and disengaged from the bolt hole via the insertion guide.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 6, 2015
    Assignee: Yanmar Co., Ltd.
    Inventor: Masataka Mitsuda
  • Patent number: 8920531
    Abstract: The present invention relates to device and method for reducing soot particles. The device for reducing soot particles includes a first filter provided to an exhaust gas flow passage through which exhaust gas from a diesel engine flows to have a predetermined volume of a plurality of grains to be operated as a volumetric filtration system, and a second filter provided to a predetermined position of the second filter to be operated as a surface filtration system.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: December 30, 2014
    Assignee: CA Tech Inc.
    Inventor: In-Gweon Lim
  • Publication number: 20140366513
    Abstract: A device includes a pipeline section for an exhaust gas flow. The pipeline section has an inlet end, an outlet end, a rectilinear section and a protuberance having an opening for installing a metering device for a liquid additive (in particular urea/water solution) in the rectilinear section. The protuberance has a height and an extent and the extent is at least twice as large as the height. At least one respective disk-shaped honeycomb body is disposed at each of the inlet end and the outlet end. A central axis of the opening is oriented toward one of the disk-shaped honeycomb bodies. A motor vehicle having the device is also provided.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: KLAUS MUELLER-HAAS, ROLF BRUECK
  • Patent number: 8906134
    Abstract: A method for engine-out soot flow rate prediction of an exhaust gas treatment system is provided. A measured level of oxides of nitrogen in the exhaust gas treatment system is received. An engine fuel injection timing and air-fuel ratio of an engine producing the oxides of nitrogen are also received. An engine timing factor is determined based on the engine fuel injection timing. An engine air-fuel ratio factor is determined based on the engine air-fuel ratio. An engine-out soot flow rate prediction is generated based on the measured level of oxides of nitrogen, the engine timing factor, and the engine air-fuel ratio factor.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 9, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Min Sun, Michelangelo Ardanese, Jean-Yves Lavallee, Amanpal S. Grewal, Paul Jasinkiewicz
  • Patent number: 8888883
    Abstract: A ceramic honeycomb structure suitable for particulate filters, having an inlet face and an outlet face, comprising a plurality of inlet cells and a plurality of outlet cells extending through the structure from the inlet face to the outlet face, the inlet cells being open at the inlet face and closed where adjoining the outlet face, and the outlet cells being open at the outlet face and closed where adjoining the inlet face. The inlet and/or outlet cells are quadrangular in cross-section and are arranged in an alternating pattern; the outlet cells may have a cross-sectional area generally smaller than that of inlet cells and no point of a given inlet cell is closer to an adjacent inlet cell than to an adjacent outlet cell. A process for preparing the ceramic honeycomb structure is also disclosed.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: November 18, 2014
    Assignee: Imerys
    Inventors: Thierry Salmona, Carl De Poncins
  • Patent number: 8876959
    Abstract: A device for at least one self-heated and dense ceramic tube for gas separation. The device includes at least one dense ceramic tube in an environment accessible to a mixture of gases, the at least one tube acting as a diffusion membrane for separating at least one gas from the mixture of gases. Two electrical contacts are provided which allow connecting a power supply to the ceramic tube and driving an electric current through the ceramic tube. The contacts can be in the farm of short coils wrapped around the ceramic tube at difference places. When a voltage is applied to the contacts, an electrical current flows from one contact to the other through the ceramic tube. The current in the ceramic tube heats the tube. Thus, the tubes heat themselves. The hot tube allows separating a gas from the mixture of gases. The driving force for the diffusion is achieved by a pressure difference generated by pumping at the side of the separated gas and pressing at the side of the mixture of gases.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: November 4, 2014
    Assignee: Technion Research and Development Ltd
    Inventor: Ilan Riess
  • Patent number: 8870987
    Abstract: An object of the present invention is to detect any breakdown or failure of a particulate filter more appropriately. A failure detecting apparatus for detecting failure of a particulate filter according to the present invention comprises an acquiring section which acquires an amount of PM contained in an exhaust gas allowed to outflow from the particulate filter; a regeneration process executing section which executes a filter regeneration process for oxidizing and removing PM deposited in the particulate filter; and a failure judging section which judges that the particulate filter is in the failure state if a decreased amount of the amount of PM contained in the exhaust gas acquired by the acquiring section, during a predetermined period of time as started from a point in time at which the execution of the filter regeneration process performed by the regeneration process executing section is completed, is not equal to or larger than a predetermined reference amount.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: October 28, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuya Takaoka, Daisuke Shibata
  • Patent number: 8864875
    Abstract: 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: Grant
    Filed: November 13, 2012
    Date of Patent: October 21, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Eugene V. Gonze, Michael J. Paratore, Jr., Julian C. Tan
  • Patent number: 8852311
    Abstract: The present invention aims to provide a honeycomb structure capable of preventing a plugging failure and forming cracks by heat shock which are caused by a cell having a small cross-section.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: October 7, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Teruo Komori, Hajime Yoshino
  • Patent number: 8845798
    Abstract: 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: Grant
    Filed: December 7, 2010
    Date of Patent: September 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroki Nishijima
  • Patent number: 8845783
    Abstract: The present invention is intended to detect a failure of a PM filter with a higher degree of accuracy. The present invention is provided with: a PM trapping efficiency calculation part to calculate a PM trapping efficiency (which is a proportion of an amount of particulate matter trapped with respect to an amount of inflow particulate matter) based on an amount of inflow particulate matter obtained by an inflow particulate matter obtaining part, and an amount of outflow particulate matter detected by a PM sensor; and a failure detection part to make a determination that a failure has occurred in the PM filter, in cases where there has appeared a tendency for the PM trapping efficiency to decrease during a period of time until the execution of the following filter regeneration processing is started after the completion of execution of the filter regeneration processing.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: September 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuya Takaoka, Daisuke Shibata, Hiroshi Sawada, Toru Kidokoro
  • Publication number: 20140260472
    Abstract: A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc. Bauxite compounds can also be separately collected if desired. The method and apparatus also result in production of fertilizer products by purging with gaseous or liquid nitrogen the zeolite beds through which the stack gas flows. The oxygen split in the beds may be recycled to the burners in the plant.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: THREE D STACK, LLC
    Inventor: James Gary DAVIDSON
  • Patent number: 8821608
    Abstract: Inner cases are connected to outer cases through joining flanges which protrude toward outer peripheries of the outer cases. A plurality of combinations each including filters, the inner cases, and the outer cases are provided. Both the joining flanges are sandwiched and fixed between a pair of sandwiching flanges, thereby connecting the plurality of outer cases to each other.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: September 2, 2014
    Assignee: Yanmar Co., Ltd.
    Inventor: Masataka Mitsuda
  • Patent number: 8815193
    Abstract: A selective non-catalytic reduction apparatus for exhaust gases comprising a reactor for elevated temperature reduction of NOx comprising an injection zone, internal structure zone and rear zone. The internal structure zone includes packing materials and provides a surface area of 5.0 m2/g to 20 m2/g where the packing material is present in the reactor at a level of 10% to 50% of the reactor volume. The reactor provides one or more of the following: (1) a residence time for exhaust gas of 0.1 seconds to 5.0 seconds; (2) a pressure drop of less than or equal to 1400 Pa/m at an exhaust gas velocity of 1.0 meter/second.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: August 26, 2014
    Assignee: Southwest Research Institute
    Inventors: Maoqi Feng, Rijing Zhan, Jeffrey N. Harris
  • Patent number: 8814969
    Abstract: An exhaust gas emission control system includes a cylindrical inflow body and an inflow pipe into which exhaust gas flows. The exhaust gas emission control system also includes a cylindrical outflow body and an outflow pipe from which the exhaust gas flows. The inflow pipe is provided with a louver member that covers an opening of the inflow body near an upstream side of an exhaust gas flow direction. The louver member is provided with slits and inclined plates capable of changing a flow direction of the exhaust gas passing through the slits into a desired direction.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: August 26, 2014
    Assignee: Komatsu Ltd.
    Inventors: Shouhei Nagasaka, Hiroki Sato, Issei Hara, Yosuke Obuchi, Tatsushi Itoh, Yuuki Kasaoka
  • Patent number: 8814975
    Abstract: There is provided a honeycomb structure including a honeycomb base material including a porous partition wall parent material; plugged portions; and a porous collecting layer disposed on the surface of the partition wall parent material in the remaining cells. A melting point of a material constituting the collecting layer is higher than that of a material constituting the partition wall parent material, a pore surface area per unit volume of the collecting layer is 2.0 times or more a pore surface area per unit volume of the partition wall parent material, and a thickness of a portion of the collecting layer which penetrates into pores of the partition wall parent material is 6% or smaller of that of each of partition walls including the partition wall parent material and the collecting layer.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: August 26, 2014
    Assignee: NGK Insulators, Ltd.
    Inventor: Yoshio Kikuchi
  • Patent number: 8814974
    Abstract: A thin-walled porous ceramic wall-flow filter is disclosed. The filter produces a relatively lower pressure drop coupled with relatively high initial filtration efficiency (FE0), and may enable packaging the filter in a smaller volume. The filter includes a plurality of porous ceramic walls forming cell channels. At least some of the cells are plugged forcing some exhaust gases through the walls, thereby filtering out entrained particulates. The walls have a wall thickness (Twall) wherein 102 ?m?Twall<279 ?m, and a median pore diameter (MPD), and wherein 10<Twall/MPD, and may also be <40. The relatively small median pore diameter (MPD) in comparison to the wall thickness (Twall) allows the use of thinner ceramic walls that provide less flow resistance than thicker walls while maintaining sufficient initial filtration efficiency (FE0). Furthermore, such thin-walled filter structure coupled with unequal inlet/outlet area ratio (Ai/Ao) may allow filter lengths to be additionally shortened.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: August 26, 2014
    Assignee: Corning Incorporated
    Inventors: Douglas Munroe Beall, Achim Karl-Erich Heibel, Pushkar Tandon
  • Patent number: 8808418
    Abstract: A system for treating diesel exhaust is disclosed. The system includes a first filter including layers of filtration material positioned between layers of corrugated metallic foil. The metallic foil defines a honeycomb arrangement of longitudinal passageways from an upstream end to a downstream end and also openings for allowing exhaust to pass between adjacent longitudinal passageways of the metallic foil. The filtration material is positioned such that exhaust between the adjacent longitudinal passageways passes through the filtration material. The metallic foil also includes flow diverting structures to divert flow within the longitudinal passageways through the openings. A second filter is positioned downstream from the first filter. The second filter defines a honeycomb arrangement of longitudinal passageways. The longitudinal passages are selectively plugged adjacent upstream and downstream ends to force flow radially through walls between the longitudinal passages of the second filter.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: August 19, 2014
    Assignee: Donaldson Company
    Inventors: Wenzhong Zhang, Todd R. Taubert, Timothy L. Ricke, Julian A. Imes
  • Patent number: 8801818
    Abstract: 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: Grant
    Filed: May 14, 2012
    Date of Patent: August 12, 2014
    Assignee: Daimler AG
    Inventors: Andreas Albrecht, Peter Benz, Charles W. Emley, Uwe Gaertner, Christian Medau
  • Patent number: 8801822
    Abstract: 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: Grant
    Filed: February 16, 2011
    Date of Patent: August 12, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Hideo Shiomi, Taichi Togashi
  • Patent number: 8778045
    Abstract: Cellular ceramic articles are manufactured from a green cellular ceramic body that includes a binder material and a plurality of channels. At least one of the channels is coated with a slurry that includes a green coating composition and a solvent to form a coating layer. The binder material is insoluble in the solvent.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: July 15, 2014
    Assignee: Corning Incorporated
    Inventors: Thorsten Rolf Boger, Willard Ashton Cutler, Kenneth Joseph Drury, Todd Parrish St Clair, Patrick David Tepesch, John Forrest Wight, Jr.
  • Patent number: 8778053
    Abstract: A method of removing ash from a wall flow type particulate filter which is arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen for trapping particulate matter in exhaust gas, using a solid acid which is carried on the particulate filter, renders the state of the particulate filter a state where the exhaust gas which flows into the particulate filter is lowered in concentration of oxygen and the particulate filter is raised in temperature, and then renders the state of the particulate filter a state where the exhaust gas which flows into the particulate filter in an oxidizing atmosphere contains SOx.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: July 15, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Otsuki, Shigeki Nakayama, Hiromasa Nishioka, Katsuhiko Oshikawa, Yoshihisa Tsukamoto, Junichi Matsuo, Yuichi Sobue, Daichi Imai, Kou Sugawara
  • Patent number: 8778041
    Abstract: 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 de
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: July 15, 2014
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Yoshiaki Mitsui, Hidehisa Yoshizako, Noriyuki Imada, Naoki Oda
  • Patent number: 8764872
    Abstract: A honeycomb filter includes a honeycomb base material, plugged portions, and a porous collecting layer disposed on the surface of the partition wall parent material in at least the remaining cells. The collecting layer has a constitution in which a plurality of particles combine or intertwine with one another, and the collecting layer includes fibrous fiber particles as the plurality of particles, and includes the particles having an average fiber diameter of 0.1 to 15 ?m and an average aspect ratio of 3 or larger. An open area ratio of the surface of the collecting layer is 20% or larger.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: July 1, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshinori Isoda, Yoshio Kikuchi
  • Patent number: 8758464
    Abstract: 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: Grant
    Filed: March 16, 2011
    Date of Patent: June 24, 2014
    Assignee: KUBOTA Corporation
    Inventors: Yasuo Fujii, Masanori Fujiwara, Katsushi Inoue, Yuuki Ishii, Kenta Mitamura, Noriyoshi Eguchi, Yongchol Lee, Tomohiro Ninomiya
  • Publication number: 20140170033
    Abstract: Method for the preparation of a wall flow particulate filter catalysed at its inlet side with a first catalyst having activity in the removal of residual hydrocarbons and carbon monoxide and catalysing at rich burn engine operation conditions the reaction of nitrogen oxides with hydrogen and/or carbon monoxide to ammonia and catalysed at its outlet side with a second catalyst having activity in the selective reduction of NOx by reaction with ammonia being formed in the inlet side. The method involves the provision of a first catalyst having a particle size smaller than the filter wall mean pore size, and a second catalyst having a particle size larger than the filter wall mean pore size, and mixing the first and second catalyst into one suspension, which is used for wash-coating from the outlet end. The first catalyst thereby diffuses into the partition wall.
    Type: Application
    Filed: June 14, 2012
    Publication date: June 19, 2014
    Applicant: Haldor Topsøe A/S
    Inventors: Pär L. Gabrielsson, Keld Johansen
  • Publication number: 20140170044
    Abstract: Described are catalyst compositions, catalytic articles, methods of manufacturing catalytic articles and exhaust gas treatment systems and methods that utilize the catalytic articles. The catalyst composition comprises an oxidation catalyst comprising a washcoat layer including a platinum group metal supported on a refractory metal oxide support and porous molecular sieve particles having internal pores, the molecular sieve particles protected by a protecting material selected from an organic wax encapsulating the molecular sieve particles, a polymer encapsulating the molecular sieve particles, an inorganic oxide deposited on the surface of the molecular sieve particles, or an organic compound filling the internal pores of the molecular sieve particles, wherein the protecting material prevents interaction of the molecular sieve particles with the platinum group metal.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 19, 2014
    Applicant: BASF Corporation
    Inventors: Jeffrey B. Hoke, Oleg Ilinich, Michael Breen
  • Publication number: 20140170043
    Abstract: Described are catalyst compositions, catalytic articles, methods of manufacturing catalytic articles and exhaust gas treatment systems and methods that utilize the catalytic articles. The catalytic articles include a washcoat of platinum group metal on refractory oxide support particles, and further including a molecular sieve wherein greater than 90% of the molecular sieve particles have a particle size greater than 1 ?m.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 19, 2014
    Applicant: BASF Corporation
    Inventors: Jeffrey B. Hoke, Ahmad Moini, Marcus Hilgendorff
  • Patent number: 8747509
    Abstract: There is provided a honeycomb filter including a honeycomb base material including a porous partition wall parent material; plugged portions arranged in open frontal areas of predetermined cells in an end surface on an inflow side of the fluid, and open frontal areas of the remaining cells in an end surface on an outflow side of the fluid; and a porous collecting layer disposed on the surface of the partition wall parent material in the remaining cells. In a cross section orthogonal to an extending direction of the cells, a shape of the cells is a rectangular shape, and a thickness of a portion of the collecting layer which is positioned in each of corner portions of each of the cells is from one to three times that of a portion of the collecting layer which is positioned in the center of each of sides of the cell.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: June 10, 2014
    Assignee: NGK Insulators, Ltd.
    Inventor: Yoshio Kikuchi