Patents Examined by Tom P Duong
  • Patent number: 10465586
    Abstract: A fibre mat, for example a monolith support mat or end cone insulator, the mat comprising inorganic fibres having a pressure retained value at 10 minutes at 900° C. of greater than 20 kPa; and preferably a binder. The inorganic fibres comprise X and Y and K2O, the sum of which is greater than 95 wt. % wherein X is the sum of SiO2 and ZrO2 and Y is the sum of Al2O3 and La2O3, wherein ZrO2 and La2O3 is each present in up to 10 wt. % of the total weight of the inorganic fibres.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: November 5, 2019
    Assignee: Thermal Ceramics UK Limited
    Inventors: Gary Jubb, Farid Modarresifar
  • Patent number: 10465583
    Abstract: In an exhaust-gas-purification catalytic heating device that houses a current heater in a conductive metallic housing where a catalytic unit is housed, the current heater being arranged at an upstream side of the catalytic unit along a distribution direction of exhaust gas, the current heater has a negative electrode directly coupled to the housing electrically coupled to an external ground wire, the current heater has a positive electrode with which a rod-shaped terminal is continuous, the terminal passing through the housing in an electrically insulating state so as to be electrically coupled to a power line outside the housing, and the terminal has a portion protruding from the housing, the protruding portion being covered with a terminal cover.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: November 5, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenichiro Nakamura, Ryosuke Ibata, Daiji Kawaguchi, Hirotaka Sato, Tetsuya Kaneko
  • Patent number: 10450916
    Abstract: Provided is a plasma reactor capable of reliably generating plasma even in the event of inflow of water. The plasma reactor of the present invention includes a plasma panel stack 20, electrically conductive members 51 and 54, a case, and a mat 71. The plasma panel stack 20 has a structure in which electrode panels 30 are stacked, and generates plasma upon application of voltage between the adjacent electrode panels 30. The electrically conductive members 51 and 54 are electrically connected to discharge electrodes of the electrode panels 30. The case houses the plasma panel stack 20. The mat 71 intervenes between the case and the plasma panel stack 20 and fixes the plasma panel stack 20 to the case. The mat 71 is disposed apart from the electrically conductive members 51 and 54 so that gaps S1 and S2 are formed between the mat 71 and the electrically conductive members 51 and 54, respectively.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 22, 2019
    Assignees: NGK SPARK PLUG CO., LTD., TOKYO ROKI CO., LTD.
    Inventors: Shinsuke Itoh, Norihiko Nadanami, Yu Ebara
  • Patent number: 10450919
    Abstract: A support for an electric heating type catalyst includes: a honeycomb structure having: porous partition walls extending through the honeycomb structure from an inflow end face to an outflow end face to define a plurality of cells forming a through channel; and an outer peripheral wall located at the outermost periphery; a pair of electrode layers disposed on the outer peripheral wall of the honeycomb structure; and a pair of electrode portions. Each of the electrode layers is formed in a strip shape extending in an extending direction of the cell of the honeycomb structure. In a cross section orthogonal to the extending direction of the cell, one electrode layer of the pair of electrode layers is disposed on a side opposite to the other electrode layer across a center of the honeycomb structure. Each of the electrode layers is electrically connected to each of the electrode portions via two or more base layers, and the base layers have conductivity and are spaced apart from each other.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: October 22, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Naoki Okamoto, Naoya Takase
  • Patent number: 10450921
    Abstract: An exhaust purification system is equipped with: a linear exhaust pipe through which exhaust gas emitted from an engine passes; an injection nozzle that injects a reducing agent into the exhaust pipe at an oblique angle with respect to the axial direction of the pipe; a reduction catalyst that is provided in the exhaust system downstream from the injection nozzle, and that purifies the exhaust gas by causing the exhaust gas to react with the reducing agent; and a mixer member that is provided inside the exhaust pipe 13, downstream from the injection nozzle, and that causes the reducing agent to mix with the exhaust gas and diffuse. The mixer member includes multiple fins protruding downstream, and is arranged inclined inside the exhaust pipe such that the upstream surface thereof faces the injection opening surface of the injection nozzle.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: October 22, 2019
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Katsushi Osada, Takehito Imai
  • Patent number: 10443472
    Abstract: An extruded honeycomb catalyst for nitrogen oxide reduction according to the selective catalytic reduction (SCR) method in exhaust gases from motor vehicles includes an extruded active carrier in honeycomb form having a first SCR catalytically active component and with a plurality of channels through which the exhaust gas flows during operation, and a washcoat coating having a second SCR catalytically active component being applied to the extruded body, wherein the first SCR catalytically active component and the second SCR catalytically active component are each independently one of: (i) vanadium catalyst with vanadium as catalytically active component; (ii) mixed-oxide catalyst with one or more oxides, in particular those of transition metals or lanthanides as catalytically active component; and (iii) an Fe- or a Cu-zeolite catalyst.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: October 15, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guy Richard Chandler, Neil Robert Collins, Ralf Dotzel, Joerg Muench, Paul Richard Phillips, Gudmund Smedler, Andrew Peter Walker
  • Patent number: 10443478
    Abstract: System for the removal of noxious compounds and particulate matter from exhaust gas of a compression ignition engine comprising a three way catalyst unit having an NH3-SCR activity, an ammonia oxidation activity and an adsorption activity of volatile vanadium and tungsten compounds volatilized off an upstream SCR active catalyst.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: October 15, 2019
    Assignee: UMICORE AG & CO. KG
    Inventors: Keld Johansen, Ton V. W. Janssens
  • Patent number: 10443476
    Abstract: A catalyst device includes a catalyst support, a tubular portion, which accommodates the catalyst support, a holding mat, which holds the catalyst support, an insulator provided over the outer circumferential surface of the tubular portion, and a heat insulating member arranged between the insulator and the tubular portion. The region of the outer circumferential surface of the tubular portion between the upstream end and the downstream end in the exhaust gas flowing direction is divided into two subregions arranged in a direction of the axis of the tubular portion. Of the two subregions, the subregion on the upstream side is defined as an upstream subregion, and the subregion on the downstream side is defined as a downstream subregion. The area that is covered with the heat insulating member in the downstream subregion is smaller than the area that is covered with the heat insulating member in the upstream subregion.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Jumpei Shioda
  • Patent number: 10436094
    Abstract: In one embodiment, there is disclosed an apparatus for decontaminating exhaust gasses. The apparatus includes a monolith catalytic substrate having a length and a width. The substrates length separates first and second opposed ends. The first end and second ends each have a one piece retention ring fitted thereon. The apparatus includes a housing having a length separating opposed, spaced apart open first and second ends. The housing has a side wall extending substantially unbroken there between to define a body having an interior space. The monolith catalytic substrate is disposed in said interior space. The housing has a greater length than said monolith catalytic substrate. The substrate is centered in the housing and the housing is swaged at the first and second ends respectively to engage the retention rings and retain the monolith catalytic substrate within the interior space in said housing.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 8, 2019
    Assignee: ACAT Global
    Inventor: Randy E. Waffle
  • Patent number: 10434499
    Abstract: The present invention relates to diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) catalyst compositions, used for a smoke reduction apparatus, for inhibiting white smoke generated from a diesel engine and, more specifically, to a DOC, enabling minimization of sulphate adsorption, a DPF catalyst, enabling a sulphate desorption delay, and a smoke reduction apparatus having the DOC and DPF catalyst assembled therein. The diesel particulate filter catalyst composition, which is applied to the DPF, comprises oxide components selected from oxide components comprising manganese oxide and silver oxide.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: October 8, 2019
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Hyun-sik Han, Eun-seok Kim, Jae-Uk Han, Hyoung-Mun Cho
  • Patent number: 10436097
    Abstract: An aftertreatment system includes a filtration and reduction unit. The filtration and reduction unit comprises a housing defining an internal volume. A filter is disposed in the internal volume and is configured to substantially remove particulates from the exhaust gas. A selective catalytic reduction system is disposed in the internal volume downstream of the filter and is configured to selectively reduce a portion of the exhaust gas. A first catalyst is formulated to oxidize at least a portion of the exhaust gas. An intake pipe is disposed upstream of the filtration and reduction unit and configured to communicate the exhaust gas to the filtration and reduction unit. The first catalyst is disposed in the intake pipe. An exhaust pipe is disposed downstream of the filtration and reduction unit.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 8, 2019
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Yi Liu, Qiang Liu, Arvind V. Harinath, Changsheng C. Su, Behnam Bahrami, A. Carl McDonald, Stephen M. Holl
  • Patent number: 10422060
    Abstract: A holding material including: inorganic fibers that include 70 wt % or more of an alumina component an organic binder other than polyacrylamide of which the surface is negatively charged, alumina sol, and polyacrylamide having a weight-average molecular weight of 3,000,000 to 6,000,000, wherein the amount of the alumina sol is 2 to 8 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers, and the amount of the polyacrylamide is 0.01 to 1.0 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 24, 2019
    Assignee: NICHIAS CORPORATION
    Inventors: Akihiro Nakashima, Kazutoshi Isomura, Hiroki Nakamura, Yuki Takeda
  • Patent number: 10415446
    Abstract: Provided is an exhaust purifying filter having high catalyst purification performance and particulate matter capturing performance while reducing pressure loss. A GPF includes a filter substrate in which a plurality of cells extending from an inflow-side end surface to an outflow-side end surface are partitioned and formed by a porous partition wall and an inflow-side cell in which an opening in the outflow-side end surface is sealed and an outflow-side cell in which an opening in the inflow-side end surface is sealed are alternately disposed; and a TWC which is carried on the partition wall, wherein a difference between a total volume of pores having pore diameters within a range of 0.1 ?m to 10.7 ?m in pore distribution of the GPF and a total volume of pores having pore diameters within a range of 0.1 ?m to 10.7 ?m in pore distribution of the filter substrate is 0.015 ml/g˜0.06 ml/g.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: September 17, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Chiaki Seki, Takeshi Mori, Takayuki Watanabe
  • Patent number: 10413867
    Abstract: An exhaust gas purification member comprises an annular substrate centered on a central axis, a peripheral electrode alongside and against an outer cylindrical face of the substrate, and a central electrode alongside and against an inner cylindrical face of the substrate. The substrate is made up of an electrically conductive material and includes a plurality of intersecting walls defining longitudinal cells therebetween and that each emerge in an upstream face and in a downstream face of the substrate. These intersecting walls are covered with a catalytic composition and each wall extends from an outer cylindrical wall of the substrate, defining the outer cylindrical face, to the inner cylindrical wall of the substrate, defining the inner cylindrical face.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 17, 2019
    Assignee: Faurecia Systemes D'Echappement
    Inventor: Xavier Bartolo
  • Patent number: 10408104
    Abstract: A catalyst apparatus is disposed in an exhaust passage for exhaust gas discharged from an internal combustion engine and includes a catalyst section for purifying the exhaust gas, and a heater section disposed upstream of the catalyst section in the exhaust passage and adapted to heat the exhaust gas. The heater section is configured such that a plurality of metal thin plates and insulators are stacked alternatingly are wound. The heater section contains a pair comprising a positive electrode and a negative electrode for energizing and heating the metal thin plates. The positive and negative electrodes are joined to each of the metal thin plates in such a manner that the positive electrode is located away from the negative electrode in a winding direction of the metal thin plates.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: September 10, 2019
    Assignee: NGK Spark Plug Co., LTD.
    Inventors: Takaya Yoshikawa, Takaaki Yamada, Yuki Saito
  • Patent number: 10408110
    Abstract: A decomposition reactor for an exhaust system includes an exterior component defining an internal volume and having an inlet and an outlet with the inlet and outlet are formed on a same side of the exterior component. A flow divider is positioned within the internal volume and defines a thermal management chamber and a main flow chamber. A first flow path of exhaust flows from the inlet into the main flow chamber to mix with dosed, and a second flow path of exhaust flows from the inlet into the thermal management chamber to control a temperature of a portion of the flow divider. In some implementations, one or more swirling diverters can be coupled to the flow divider and positioned proximate the outlet of the exterior component to impart a vortical motion to a combined reductant and exhaust gas flow exiting out the outlet.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 10, 2019
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Ryan Johnson, Udit Bhaveshkumar Shah, Samuel Johnson, Mahendra Mittapalli, Kartiki Jagtap
  • Patent number: 10392993
    Abstract: An exhaust gas control apparatus for an internal combustion engine includes a selective reduction catalyst (SCR), a urea solution supply device and a control device. The control device diagnoses abnormality of the SCR in accordance with an amount of ammonia that is discharged to a downstream side of the SCR when supplying a urea solution in a supply amount at an abnormality diagnosis time that is a supply amount larger than a target supply amount to the SCR. Further, the control device performs control of decreasing a supply amount of the urea solution when predetermined conditions are satisfied after abnormality diagnosis of the SCR. Here, the predetermined conditions are that an estimated amount of ammonia adsorbed by the SCR is larger than the reference adsorption amount, and an amount of the urea solution required in removal of nitrogen oxide per unit is smaller than a reference urea solution amount.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 27, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kohei Mori
  • Patent number: 10385745
    Abstract: An exhaust purifying device provided in an exhaust passage of an internal combustion engine comprises: a column-shaped honeycomb carrier; a cylindrical case member adapted to house the honeycomb carrier; a holding member provided between the honeycomb carrier and the case member to surround the outer circumference of the honeycomb carrier; buffer members provided on a peripheral edge of the edge surface of at least one side of an inflow side edge surface and an outflow side edge surface of the honeycomb carrier so as to regulate the movement of the honeycomb carrier in the central axis X direction; and setting members secured to the case member to regulate the movement of the buffer members by allowing their position regulation parts to contact the buffer members; wherein the buffer members are provided, on the outer circumferential sides, with recesses into which the position regulation parts of the setting members are fitted.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: August 20, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yoshiaki Hatakeyama, Hiroki Yokoyama
  • Patent number: 10376867
    Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalyzed substrate monolith comprising an oxidizing catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalyzed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: August 13, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Hanako Oyamada, Raj Rao Rajaram, Satoshi Sumiya, Andrew Peter Walker, Lifeng Wang
  • Patent number: 10376870
    Abstract: Provided is a catalyst block for cleaning exhaust gas, having: a square-shaped honeycomb core provided with first-fourth outside surfaces; a first plate attached to the first outside surface; a second plate attached to the second outside surface; and an exterior frame disposed along the outer periphery of the firm and solid honeycomb core formed from the honeycomb core, the first plate and the second plate, the exterior frame being provided with a recessed part that at least encases the first plate, the second plate, the third outside surface and the fourth outside surface. In the catalyst block, a catalyst is supported in the honeycomb core, the first plate and the second plate, and the catalyst is not supported in the exterior frame.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: August 13, 2019
    Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Takeshi Shinoda, Hidehiko Morita, Masayuki Kasuya, Taro Kono