Patents Examined by Tom P Duong
  • Patent number: 10918987
    Abstract: A particulate filter for exhaust-gas aftertreatment in an internal combustion engine has a housing on which an inlet and an outlet are configured on opposite ends. The particulate filter also has a filter element arranged in the housing, said filter element having essentially parallel filter channels that are each alternatingly closed on the inlet side or on the outlet side by a closure in order to prevent gas from passing directly through the filter element. In this context, the filter channels can be divided into a first group of filter channels which are closed on the outlet side by a closure, and into a second group of filter channels which are closed on the inlet side by a gas-tight closure. The filter channels of the second group are additionally closed on the outlet side by a high-porosity closure in order to improve the cleaning effect of the particulate filter.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: February 16, 2021
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Onur Ulas Car, Markus Paulovsky
  • Patent number: 10918988
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb substrate and a plugging portion provided at an end portion on either an inflow or outflow end face side of cells, wherein, in a section orthogonal to the cell extending direction, the shapes of an inflow cell having the plugging portion and an outflow cell having the plugging portion are hexagonal. In the plurality of cells, a plurality of inflow cells surround one outflow cell such that one side of the inflow cell and one side of the outflow cell adjacent to the inflow cell are parallel. The partition wall includes a first partition wall and a second partition wall, at least one of the first partition walls is configured such that a ratio of a thickness of the second partition wall to the first partition wall is 1.0 to 2.5, and a total open frontal area is 35% to 95%.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: February 16, 2021
    Assignee: NGK Insulators, Ltd.
    Inventors: Tetsuya Makino, Makoto Teranishi, Tadato Ito, Etsuji Ohara
  • Patent number: 10920640
    Abstract: A mixer for mixing exhaust gas flowing in an exhaust gas duct of an internal combustion engine with reactant injected into the exhaust gas duct includes a plate-shaped exhaust gas collection body (12) with an incoming flow surface (14) on an exhaust gas incoming flow side (16) and with a rear side (18) facing away from the incoming flow side (16). A duct housing (20), arranged on the rear side (18) of the exhaust gas collection body (12), has a reactant-receiving duct (28) and at least one release duct (48, 50) leading away from the reactant-receiving duct (28). An exhaust gas collection opening (34) is formed in the exhaust gas collection body (12). An exhaust gas collection duct (36) leads from the exhaust gas collection opening (34) to the duct housing (20) and is open to the reactant-receiving duct (28).
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: February 16, 2021
    Assignee: Ebersp├Ącher Exhaust Technology GmbH
    Inventor: Enver Kurpejovic
  • Patent number: 10905992
    Abstract: A honeycomb structural body includes: a porous cell wall that partitions a cylindrical casing; and a large number of cells extending in the axial direction X thereof and alternately blocked at an upstream end face. The large number of cells include plugged cells having plugs and penetrating cells that do not have the plugs. The plugged cells and the penetrating cells both include complete cells and incomplete cells. At least some of plugged incomplete cells of the incomplete cells have a cross-sectional area smaller than a cross-sectional area of penetrating complete cells, and are configured as blocked cells that are entirely blocked inside in the axial direction.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 2, 2021
    Assignee: DENSO CORPORATION
    Inventors: Hirokatsu Imagawa, Hironori Niwa
  • Patent number: 10895186
    Abstract: A honeycomb body includes: a first end face; a second end face, the honeycomb body being configured to permit gas flow through the honeycomb body from the first end face to the second end face in a flow direction; and a plurality of at least partially structured sheet metal layers, layered one on top of the other and entwined with each other to form gas-permeable channels. At least one of the plurality of sheet metal layers is reinforced or replaced by at least two elongate electrical heating elements arranged approximately parallel to one another with a spacing one behind the other in the flow direction and extending transversely to the flow direction.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: January 19, 2021
    Assignee: Vitesco Technologies GmbH
    Inventors: Peter Hirth, Christoph Pabst
  • Patent number: 10895183
    Abstract: The present disclosure generally provides low-temperature nitrogen oxides (NOx) adsorbers used in the treatment of a NOx-containing exhaust gas stream and to methods of preparing and using the same. In particular, the NOx adsorber composition includes an active metal and a metal oxide support, wherein the metal oxide support includes greater than 50% by weight ceria based on the total weight of the NOx adsorber composition, and wherein the active metal includes about 0.01% to about 5% by weight ruthenium based on the total weight of the NOx adsorber composition.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 19, 2021
    Assignee: BASF Corporation
    Inventors: Olga Gerlach, Xinyi Wei, Andreas Sundermann, Emily Schulman, Stanley A. Roth
  • Patent number: 10882796
    Abstract: A ceramic porous body comprising: skeleton portions including an aggregate and at least one binding material; and pore portions formed between the skeleton portions, the pore portions being capable of allowing a fluid to flow therethrough. In the ceramic porous body, the pore portions have a pore volume ratio of pores having a pore diameter of from 1 to 10 ?m, of 45% or more, and a ratio of a contact area between the aggregate and the binding material to a surface area of the binding material of from 20 to 60%.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: January 5, 2021
    Assignee: NGK Insulators, Ltd.
    Inventors: Hiroaki Noguchi, Shuichi Ichikawa, Akifumi Kawakami, Mitsuhiro Ito
  • Patent number: 10875010
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component and a first inorganic oxide, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have no more than 100 PGM atoms, and wherein the PGM nanoparticles have a mean particle size of 1 nm to 10 nm with a standard deviation (SD) no more than 1 nm.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: December 29, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventor: Shuhei Nagaoka
  • Patent number: 10870082
    Abstract: A honeycomb-like porous filter for collecting PM in exhaust gas is provided in an exhaust gas passage of an engine. The exhaust gas flows from inflow side cells 12 of the filter through pores 16 of partition walls 15 of the filter to outflow side cells 13. A catalyst 17 is supported on surfaces of the partition walls 15 constituting the inflow side cells 12 and on inner surfaces of the pores 16 of the filter. The catalyst 17 is supported on the surfaces of the partition walls 15 more thickly than on the inner surfaces of the pores 16.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 22, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventor: Eijiro Tanaka
  • Patent number: 10870077
    Abstract: Provided is a porous honeycomb filter comprising a porous first cell wall that permits exhaust gas to permeate, a second cell wall that permits exhaust gas to permeate than the first cell wall, and a cell that is surrounded by the first cell wall and the second cell wall to form an extending gas flow passage. The second cell wall has a smaller porosity than the first cell wall.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: December 22, 2020
    Assignee: DENSO CORPORATION
    Inventors: Yasushi Takayama, Shusaku Yamamura
  • Patent number: 10828626
    Abstract: A composite material comprises a macroporous silicate-based material at least partially substituted with at least one microporous zeolite, wherein the microporous zeolite is functionalised with either copper, iron or both copper and iron, and wherein the composite material is in the form of particles. The composite material can be obtained using a method comprising the steps of: (i) providing a mixture comprising a silicate-containing scaffold having a macroporous structure, an aluminium source and an organic template; (ii) hydrothermally treating the mixture to form a microporous zeolite-containing structure substantially retaining the macroporous structure of the silicate-containing scaffold; (iii) incorporating copper, iron or both copper and iron into the zeolite. The silicate-containing scaffold can be a diatomaceous earth.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: November 10, 2020
    Assignee: Johnson Matthey Catalysts (Germany) GmbH
    Inventors: Juergen Bauer, Ralf Dotzel, Joerg Werner Muench, Ralitsa Purova, Wilhelm Schwieger, Thangaraj Selvam, Ameen Shahid
  • Patent number: 10823034
    Abstract: A mixer for a vehicle exhaust system includes an outer housing that defines an internal cavity, an inlet pipe that directs exhaust gas into the internal cavity, and an outlet baffle. The outer housing includes a doser opening configured to receive a doser. The outlet baffle directs a mixture of the exhaust gas and a reducing agent injected by the doser into a downstream exhaust component. A deflector deflects exhaust gas exiting the inlet pipe to mix with the reducing agent prior to entering the downstream exhaust component.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 3, 2020
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Fabrice Giacomin, Fabien Sudries, Ludovic M. Geant, Vijaykumar Madegowda
  • Patent number: 10821390
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall surrounding cells each of which has one end plugged by a plugging portion. An open frontal area O (%) of the cells in the honeycomb structure body is 75 to 80%, a porosity P (%) of the partition wall measured by a mercury press-in method is 52 to 58%, an average pore diameter D (?m) of the partition wall measured by the mercury press-in method is 6 to 12 ?m, and a pore volume rate A (%) of pores whose pore diameters are not less than 20 ?m with respect to an overall pore volume of the partition wall is not more than 13.5%.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 3, 2020
    Assignee: NGK Insulators, Ltd.
    Inventor: Fumihiko Yoshioka
  • Patent number: 10815851
    Abstract: An exhaust gas purification device for a vehicle comprises a coil configured to generate an electromagnetic field, a magnetic flux concentrator, surrounding the coil and configured to conduct the electromagnetic field generated by the coil, and an exhaust gas purification substrate. The exhaust gas purification substrate comprises an upstream segment having an upstream section, and a downstream segment having a downstream section. The exhaust gas purification substrate further comprises at least one intermediate segment between the upstream segment and the downstream segment, the intermediate segment having a central section smaller than the upstream section and/or the downstream section.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: October 27, 2020
    Assignee: FAURECIA SYSTEMES D'ECHAPPEMENT
    Inventors: Jean Paul Brunel, Guillaume Aufranc
  • Patent number: 10808591
    Abstract: A selective catalytic reduction (SCR) system having a catalytic layer. The SCR includes a plurality of baffle members located in a position spaced apart from a front end of the catalytic layer, the plurality of baffle members reduces a flow deviation due to enlargement of a flow cross-section of a fluid in at least one direction, each of the plurality of baffle members includes a first part and a second part, the first part and the second part of each of the plurality of baffle members extends in an orthogonal direction with respect to the at least one direction of enlargement of the flow cross-section, the first part and the second part are integrated, and each of the plurality of baffle members protrudes in an inlet direction of the fluid.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: October 20, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Junyoung Lee, Jong Hyuk Park, Jun Won Choi, Chang Hun Yu, Ye Hoon Im
  • Patent number: 10801384
    Abstract: The present invention relates to a diesel oxidation catalyst, which comprises a carrier body having a length L extending between a first end face a and a second end face b and a catalytically active material zone A arranged on the carrier body, wherein the material zone A contains palladium and platinum on a manganese-containing carrier oxide, wherein the carrier oxide consists of a carrier oxide component A and a carrier oxide component B and the carrier oxide component B consists of manganese and/or a manganese compound and is present in an amount of 5 to 15 wt. %, calculated as MnO2 and based on the total weight of the manganese-containing carrier oxide.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 13, 2020
    Assignee: UMICORE AG & CO. KG
    Inventors: Christoph Hengst, Naohiro Kato
  • Patent number: 10804555
    Abstract: A honeycomb-shaped reaction vessel, comprising: a honeycomb-shaped substrate; and a reaction layer arranged in at least a portion of an inner wall of a cell of the honeycomb-shaped substrate dividedly in a direction along an inner circumference of the cell and dividedly in a longitudinal direction of the cell.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: October 13, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Tadashi Suzuki
  • Patent number: 10792626
    Abstract: A vane swirl mixer for exhaust aftertreatment includes: a vane swirl mixer inlet; a vane swirl mixer outlet; a first flow device including: a Venturi body; a plurality of upstream vanes positioned within the Venturi body; a plurality of upstream vane apertures interspaced between the plurality of upstream vanes; a plurality of downstream vanes positioned within the Venturi body; and a plurality of downstream vane apertures interspaced between the plurality of downstream vanes. At least one of the upstream vane hub and the downstream vane hub is radially offset from a Venturi center axis, thereby causing individual ones of the plurality of vanes coupled to the radially offset vane hub to differ in their geometry.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: October 6, 2020
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur, Niklas M. Schmidt, David Lee Dunnuck
  • Patent number: 10786783
    Abstract: A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a DPF center axis aligned with the single centerline axis. The selective catalytic reduction system may also include an SCR catalyst disposed within the single housing and having a center axis aligned with the single centerline axis. In some implementations, the diesel particulate filter may include one or more SiC filters. In some implementations, the SCR catalyst may include one or more extruded SCR catalysts.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: September 29, 2020
    Assignee: Cummins Emission Solutions, Inc.
    Inventors: Randolph G. Zoran, Ryan M. Johnson, David M. Sarcona, A. Carl McDonald, Jr., Kenneth R. Federle, John G. Buechler, Scott Lubenow
  • Patent number: 10773251
    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 catalysed substrate monolith comprising an oxidising 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 catalysed 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: August 6, 2019
    Date of Patent: September 15, 2020
    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