Patents Examined by Tom P Duong
  • Patent number: 10207258
    Abstract: A porous ceramic honeycomb body including a substrate of intersecting porous walls forming axial channels extending from a first end face to a second end face. An active portion of the walls include a zeolite catalyst disposed inside pores thereof and/or is comprised of an extruded zeolite and a three way catalyst (TWC) is disposed on wall surfaces of at least a portion of the active portion.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 19, 2019
    Assignee: Corning Incorporated
    Inventor: Mallanagouda Dyamanagouda Patil
  • Patent number: 10207223
    Abstract: An exhaust gas purifying device includes a first SCR catalyst converter, an oxidation catalyst converter, a filter section, and a second SCR catalyst converter arranged in series to a flow direction of an exhaust gas. The first SCR catalyst converter includes a pillar-shaped honeycomb structure a cell density of which is from 31 to 78 cells/cm2, a porosity of the partition walls of which is from 50 to 65%, and in which a first SCR catalyst is loaded onto the surfaces of the partition walls and inner portions of pores formed in the partition walls, and an amount of the first SCR catalyst to be loaded onto the surfaces of the partition walls and the inner portions of the pores is from 200 to 500 g/L and an amount of the first SCR catalyst to be loaded onto the inner portions of the pores is from 5 to 80 g/L.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 19, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Tetsuya Makino, Shogo Hirose
  • Patent number: 10195596
    Abstract: There is provided a zeolite which has excellent NOx purifying performance, particularly excellent NOx purifying performance after heat endurance. The zeolite has a CHA structure in which Cu and Ce are carried, and has a Cu/Al molar ratio of 0.25 to 0.48 and a Ce/Al molar ratio of 0.01 to 0.03.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 5, 2019
    Assignee: Ibiden Co., Ltd.
    Inventor: Toyohiro Usui
  • Patent number: 10190463
    Abstract: An exhaust system, especially for an internal combustion engine of a vehicle, includes an exhaust gas-carrying duct (14) and a reactant injection device (20) for injecting reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20), a mixer device (22) supports the mixing of reactant (R) injected by the reactant injection device (20) with exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20) and upstream of the mixer device (22), a reactant heating device (24) extends in the exhaust gas-carrying duct (14). The exhaust gas (A) flows in and reactant (R) injected through the reactant injection device (20) flow around the heating device (24).
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: January 29, 2019
    Assignee: Ebersp├Ącher Exhaust Technology GmbH & Co. KG
    Inventors: Enver Kurpejovic, Bernd Westerhoff, David Binder, Anika B├╝rkle, Gita Feyl-Narrain, Steffen Glaser, Ruben Hass, Oleksandr Semenov, Krishna Kumar Vempati
  • Patent number: 10188983
    Abstract: A system for use in selective catalytic reduction reactor is disclosed. The system may include a catalyst bed and a screen located close to the catalyst bed in a manner so that flow of flue gas to the catalyst bed contacts the screen before it contacts the catalyst bed. The screen may be adapted to support a weight of at least 400 pounds above the catalyst bed so that the weight is not imposed on the catalyst. The screen may have a plurality of holes across its surface in a manner so that the screen is adapted to change the velocity distribution of the flue gas as it flows through the screen.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 29, 2019
    Assignee: Integrated Global Services, Inc.
    Inventors: Jeff Landers Shelton, Andrew Scott Kline
  • Patent number: 10188994
    Abstract: An apparatus for aftertreatment of exhaust gas includes a housing an exhaust inlet, a first flow guide to guide at least part of exhaust gas to a first direction to form a first direction flow, and a reactant inlet for dispensing reactant to the first direction flow in an inner cavity to mix with the exhaust gas to provide a mixed exhaust gas. A second flow guide guides at least a part of the first direction flow to a second direction to form a second direction flow opposite to the first direction, and guide the second direction flow to a third direction to form a third direction flow downstream to the second direction and parallel to the first direction. An exhaust outlet exits output exhaust gas from the inner cavity; mixing of the reactant and the exhaust gas occurring within the first, second and third direction flow.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 29, 2019
    Assignee: PROVENTIA OY
    Inventors: Tuomas Tyni, Jukka Kurikka
  • Patent number: 10180099
    Abstract: A heat insulating structure for an exhaust junction pipe to be disposed in an area in which exhaust gas passages having different respective lengths are merged together comprises a first heat insulation portion that covers and provides heat insulation for at least a portion of one branch part of branch parts that are branched in the exhaust junction pipe; the one branch part forms one exhaust gas passage in a not-yet-merged state of the exhaust gas passages, and forms the one exhaust gas passage having a short length.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 15, 2019
    Assignee: FUTABA INDUSTRIAL CO., LTD
    Inventors: Masahiro Jinda, Munehiro Tsubosaka, Takuya Kondo, Shinnosuke Toichi, Toshikazu Namikiri, Manabu Yokoyama
  • Patent number: 10174656
    Abstract: An exhaust system is for a marine propulsion device having an internal combustion engine. A catalyst housing has a housing inlet end that receives an exhaust gas flow from the internal combustion engine into the catalyst housing and an opposite, housing outlet end that discharges the exhaust flow out of the catalyst housing. A catalyst is disposed in the catalyst housing. The catalyst has a catalyst inlet end that receives the exhaust gas flow and an opposite, catalyst outlet end that discharges the exhaust gas flow. A catalyst mantel is on an outer periphery of the catalyst. The catalyst mantel has a mantel inlet end and an opposite, mantel outlet end. A radial flange is on at least one of the mantel outlet end and mantel inlet end. A connector mates with an inner diameter of the catalyst housing. The radially extending flange of the catalyst mantel is axially sandwiched between the connector and a radially inner shoulder of the catalyst housing.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: January 8, 2019
    Assignee: Brunswick Corporation
    Inventors: Gregg D. Langenfeld, David J. Hilbert, Ryan E. Mueller
  • Patent number: 10161278
    Abstract: A catalyst arrangement for use with a selective catalytic reduction system includes a frame and a plurality of catalyst elements coupled to the frame. The plurality of catalyst elements is arranged vertically among a plurality of vertical stations. The plurality of vertical stations is successively defined along a height of the catalyst arrangement. The catalyst elements of at least one of the vertical stations are arranged at a plurality of axial positions with respect to an axial direction of a flow of exhaust gases through the selective catalytic reduction system.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 25, 2018
    Assignee: General Electric Company
    Inventors: Rajesh Prabhakaran Saraswathi, Bradly Aaron Kippel
  • Patent number: 10155196
    Abstract: A catalytic converter reactor having in-built catalytic converter modules, wherein the total flow impingement surface area provided by the catalytic converter elements fitted in the catalytic converter modules is larger than the flow impingement surface area of the catalytic converter reactor, the module impingement surface area being defined by the catalytic converter module surfaces facing the main flow direction, and the catalytic converter modules being positioned so that the waste gas flows through the catalytic converter elements contained therein in a direction different from the flow direction on the intake and exit sides.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: December 18, 2018
    Assignee: IBIDEN PORZELLANFABRIK FRAUENTHAL GMBH
    Inventors: Kurt Orehovsky, Michael Aumann, Andreas Hartung, Thomas Krainer, Thomas Nagl, Gerhard Poelzl, Mario Schweiger
  • Patent number: 10151230
    Abstract: An exhaust system includes an exhaust gas treatment article having a porous ceramic honeycomb body mounted in a housing. The housing can be a low expansion housing and includes an outer shell having a first coefficient of thermal expansion (CTE) and an inner wall having a second CTE greater than the first CTE configured to hold the honeycomb body over operating temperatures.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: December 11, 2018
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Kamjula Pattabhirami Reddy, Pushkar Tandon
  • Patent number: 10145280
    Abstract: An exhaust gas purifying device includes: a columnar honeycomb carrier in which a plurality of cells which extend from an exhaust gas inflow side to an outflow side, and which serve as exhaust gas flow paths, are demarcated and formed by means of porous separating walls, a three-way catalyst supported in the honeycomb carrier, and a cylindrical case member in which the honeycomb carrier is housed, with the interposition of a retaining member. The honeycomb carrier includes outer circumferential plugging portions formed in such a way as to plug, to a prescribed depth, openings of cells in an outer circumferential portion of at least one end surface of the two end surfaces, in the central axis X-direction, of the honeycomb carrier, and inclined portions formed in a direction whereby the length, in the central axis X-direction, of the outer circumferential plugging portions decreases toward the outer circumferential edge.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: December 4, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Yoshiaki Hatakeyama
  • Patent number: 10138775
    Abstract: A holding material includes a stack of a first mat and a second mat, the first mat including alumina fibers that include 60 wt % or more of alumina and 40 wt % or less of silica, and the second mat including silica fibers that include 60 wt % or more of silica and 40 wt % or less of alumina and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm3.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 27, 2018
    Assignee: NICHIAS CORPORATION
    Inventors: Kazutoshi Isomura, Hiroki Nakamura, Kiyoshi Sato, Isami Abe
  • Patent number: 10137413
    Abstract: An oxidation catalyst is described for treating an exhaust gas produced by a diesel engine. The oxidation catalyst comprises: a substrate; a capture material for capturing at least one sulfur containing impurity in the exhaust gas produced by the diesel engine; wherein the capture material comprises a metal for reacting with an oxide of sulfur in the exhaust gas and particles of a refractory oxide, wherein the particles of the refractory oxide have a mean specific surface area ?50 m2/g; and a catalytic region disposed on the substrate; wherein the catalytic region comprises a catalytic material comprising a platinum group metal (PGM) selected from the group consisting of platinum (Pt), palladium (Pd) and a combination of platinum (Pt) and palladium (Pd).
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: November 27, 2018
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Kieran Cole, Lothar Hofmann, Calum Robertson
  • Patent number: 10137412
    Abstract: The present invention provides a filter comprising a base material and a catalytic substance provided within the base material, wherein the base material comprises a plurality of cells forming gas flow paths and having a gas inflow-side end portion and outflow-side end portion, and a plurality of porous partition walls defining said cells, the end portions of at least some of the cells being closed off, and the void occupancy of the catalytic substance within the pores of the partition walls is 10% or less.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: November 27, 2018
    Assignee: Johnson Matthey Japan G.K.
    Inventor: Satoshi Sumiya
  • Patent number: 10132222
    Abstract: A component of the exhaust aftertreatment system includes a metallic body having a tapered portion. The component of the exhaust aftertreatment system further includes a curved plate arranged within the tapered portion of the metallic body. The curved plate has a plurality of perforations disposed on the curved plate to facilitate distribution of an exhaust mixture flowing through the curved plate across a surface of a substrate.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: November 20, 2018
    Assignee: Caterpillar Inc.
    Inventors: Bogdan Balea, Eric P. Spaeth
  • Patent number: 10125660
    Abstract: An aftertreatment system comprises a first SCR system, a second SCR system positioned downstream of the SCR system and a reductant storage tank. At least one reductant insertion assembly is fluidly coupled to the reductant storage tank. The at least one reductant insertion assembly is also fluidly coupled to the first SCR system and the SCR system. A controller is communicatively coupled to the reductant insertion assembly. The controller is configured to instruct the reductant insertion assembly to asynchronously insert the reductant into the first SCR system and the second SCR system.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 13, 2018
    Assignee: Cummins Emission Solutions Inc.
    Inventor: Nassim Khaled
  • Patent number: 10124292
    Abstract: Provided are emissions treatment systems for an exhaust stream having an ammonia-generating component, such as a NOx storage reduction (NSR) catalyst or a lean NOx trap (LNT) catalyst, and an SCR catalyst disposed downstream of the ammonia-generating catalyst. The SCR catalyst can be a molecular sieve having the CHA crystal structure, for example SSZ-13 or SAPO-34, which can be ion-exchanged with copper. The LNT can be layered, having an undercoat washcoat layer comprising a support material, at least one precious metal, and at least one NOx sorbent selected from the group consisting of alkaline earth elements, rare earth elements, and combinations thereof and a top washcoat layer comprising a support material, at least one precious metal, and ceria in particulate form, the top washcoat layer being substantially free of alkaline earth components. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: November 13, 2018
    Assignee: BASF CORPORATION
    Inventors: Chung-Zong Wan, Xiaolai Zheng, Susanne Stiebels, Claudia Zabel, Torsten Neubauer, R. Samuel Boorse
  • Patent number: 10125649
    Abstract: An exhaust gas purification catalyst that has an excellent exhaust gas purification performance while suppressing pressure loss increases. The exhaust gas purification catalyst is provided with a substrate having a wall-flow structure and having a partition; a first catalyst layer formed, in a region of an interior part of the partition that is in contact with an entrance cell, along the extending direction of the partition from an exhaust gas inflow-side end for less than the total length Lw of the partition; and a second catalyst layer formed, in a region of an interior part of the partition that is in contact with an exit cell, along the extending direction of the partition from the exhaust gas outflow-side end for less than the total length Lw of the partition. The first catalyst layer and the second catalyst layer are configured to partially overlap with each other in the extending direction.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: November 13, 2018
    Assignees: CATALER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryota Onoe, Shingo Sakagami, Tsuyoshi Ito, Masahiko Takeuchi, Naoto Miyoshi, Akemi Sato
  • Patent number: 10125650
    Abstract: An engine exhaust gas purification apparatus includes a three way catalyst disposed on an exhaust line, and which transforms harmful materials in exhaust gas to harmless materials by an oxidation-reduction reaction. The three way catalyst includes a first catalyst layer, a second catalyst layer, and a third catalyst layer laminated from an upper portion on a cordierite carrier, and the first catalyst layer comprises at least one platinum group metal and an oxygen non-storage material.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: November 13, 2018
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Jin Woo Choung