Patents Examined by Tom P Duong
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Patent number: 10974187Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure having porous partition walls provided, surrounding a plurality of cells which serve as fluid through channels extending from an inflow end face to an outflow end face, and porous plugging portions provided either at the ends on the inflow end face side or the outflow end face side of the cells, wherein the plugging portions are composed of a porous material, the honeycomb structure has a central region and a circumferential region, and a ratio of an area of the circumferential region with respect to that of the central region ranges from 0.1 to 0.5, porosity of a central plugging portion in the central region, is higher than that of a circumferential plugging portion in the circumferential region, and the porosity of the central plugging portion ranges from 76% to 85%, and that of the circumferential plugging portion from 60% to 75%.Type: GrantFiled: March 11, 2020Date of Patent: April 13, 2021Assignee: NGK Insulators, Ltd.Inventor: Fumihiko Yoshioka
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Patent number: 10974186Abstract: A ceramic porous body comprising: skeleton portions; 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 satisfy the following equations (1) and (2) in a cross section parallel to a flow direction of the fluid; L1/L2?0.92??(1), and L1+L2?27 ?m??(2) in which L1 is an average length of the pore portions in the flow direction of the fluid; and L2 is an average length of the pore portions in a direction orthogonal to the flow direction of the fluid.Type: GrantFiled: March 5, 2019Date of Patent: April 13, 2021Assignee: NGK Insulators, Ltd.Inventors: Rui Horimoto, Mitsuhiro Ito, Akifumi Kawakami, Yuki Jin, Hiroaki Noguchi
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Patent number: 10974183Abstract: A silicon carbide porous body includes a skeletal structure formed by a plurality of silicon carbide particles bonded to each other, a plurality of pores formed by the skeletal structure, neck parts formed by surface-contacting of adjacent silicon carbide particles, and an average pore size is larger than 3 ?m and equal to or smaller than 9 ?m, and a porosity ranges from 35% to 55%. A break filter using the silicon carbide porous body enables high performance of collection of particles, prevention of soaring up of particles, and shortening of a restoration time from the depressurized state of the chamber to the atmospheric state.Type: GrantFiled: March 12, 2019Date of Patent: April 13, 2021Assignee: COORSTEK KKInventors: Seiichi Fukuoka, Hiroki Watanabe
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Patent number: 10975743Abstract: An exhaust component for a motor vehicle includes a wall, an internal volume, an inlet, and an outlet. The wall includes a core layer having a surface and a first layer disposed on a portion of the surface. The portion is less than 100 percent of an area of the surface. The core layer has a first composition. The first layer is a cold-sprayed layer. The core layer has a second composition different from the first composition. The first layer reduces surface-radiated noise from the exhaust component during operation of the motor vehicle. The internal volume is at least partially defined by the wall. The inlet is in fluid communication with the internal volume. The outlet is in fluid communication with the internal volume.Type: GrantFiled: March 13, 2020Date of Patent: April 13, 2021Assignee: Tenneco Automotive Operating Company Inc.Inventor: Guangchun Quan
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Patent number: 10946369Abstract: A honeycomb structure body has a skin part of a cylindrical shape and a honeycomb structural part formed with the skin part together in a monolithic body. The skin part and the honeycomb structural part have partition walls of a porous structure. The cells have first cells arranged adjacent to the skin part and second cells arranged adjacent to the first cells. The skin part, the first cells and the second cells form an outer peripheral section. A central section is arranged inside the outer peripheral section. The honeycomb structure body satisfies a relationship in which a thermal expansion coefficient of the outer peripheral section is greater than a thermal expansion coefficient of the central section.Type: GrantFiled: March 27, 2020Date of Patent: March 16, 2021Assignee: DENSO CORPORATIONInventors: Kazuhiko Koike, Keisuke Mizutani, Hiroaki Kayama
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Patent number: 10940435Abstract: Implementations described herein relate to features for an integrated aftertreatment system. In one implementation, an integrated aftertreatment system comprises a casing that includes a mating flange having a first constant diameter and a catalyst component configured to mate to the mating flange of the casing. The catalyst component includes a canned body including a first portion sized to a second constant diameter to mate with the first constant diameter of the mating flange. In another implementation, an integrated aftertreatment system comprises a casing, a catalyst component positioned within the casing, a particulate filter having an outer casing with an outlet, and a particulate filter joint coupled to the outer casing of the particulate filter at the outlet. An end of the particulate filter joint is aligned with an end of the particulate filter.Type: GrantFiled: March 5, 2020Date of Patent: March 9, 2021Assignee: Cummins Emission Solutions, Inc.Inventors: Juan Manuel Valencia Arcila, Shane O'Connor, Michael T. Lynch, Ryan M. Johnson, Randolph G. Zoran, Alex A. Bethke, Victor C. Chew, Andrew Komisarek, Michael Bates, Jack Erickson, Daniel Edward Novreske, Ryan Robert Welch, Chad Carius, Oscar Chavira, Brandon Leedy, Eric R. Butler, William J. Runde, Bucky Woods
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Patent number: 10940419Abstract: A honeycomb filter including: a pillar-shaped honeycomb structure including porous partition walls; and porous plugging portions disposed on either one of end portions of each of the cells, wherein a porosity (%) of the partition walls is defined as P1, a porosity (%) of the plugging portions is defined as P2, an occupancy (%) of the partition walls relative to an area of a cross section orthogonal to an extending direction of the cells of the honeycomb structure is defined as N1, the P1 is 50 to 65%, the P2 is 60 to 70%, the N1 is 22 to 39%, and X represented by Formula (1) satisfies a relation of Formula (2): X=P1/P2×N1,??Formula (1): 18.80??0.19X2+11.33X?121.63?50.50.Type: GrantFiled: March 11, 2019Date of Patent: March 9, 2021Assignee: NGK Insulators, Ltd.Inventor: Yoshiki Konno
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Patent number: 10940421Abstract: A honeycomb body having intersecting porous walls which includes first through fourth cells, wherein the cells extend from inlet to outlet face and are plugged to define a repeating structural unit with three inlets and one outlet channel. Repeating structural unit includes a first channel including length L1, width W2, and area A1, a second channel including length L2, the width W2, and area A2, a third channel including the length L1, width W1, and area A3, and a fourth channel including the length L2, the width W1, and A4, wherein the first through third channels are inlets and the fourth channel is a rectangular outlet and at least one of W1>W2 and L1?L2, i.e. W1>W2, or L1?L2, or W1>W2 and L1?L2. Repeating structural unit has a quadrilateral outer perimeter. Particulate filters including the honeycomb body, honeycomb extrusion dies, and methods of manufacturing the honeycomb body are provided.Type: GrantFiled: January 31, 2018Date of Patent: March 9, 2021Assignee: Corning IncorporatedInventors: Douglas Munroe Beall, Dana Craig Bookbinder, Pushkar Tandon
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Patent number: 10934918Abstract: The present disclosure describes a catalytic aftertreatment system that includes a dosing compartment including a doser configured to introduce a diesel exhaust fluid (DEF) including urea into a diesel exhaust; a mixing chamber subsequent to the doser configured to mix the DEF with the diesel exhaust, the mixing chamber including an optional static metallic mixer, and a catalyst substrate including a combined urea hydrolysis-selective catalytic reduction binary catalyst coated thereon; and a SCR unit subsequent to the mixing chamber unit, including an SCR catalyst configured to facilitate reduction of nitrogen oxide (NOx) in the diesel exhaust with NH3.Type: GrantFiled: October 14, 2019Date of Patent: March 2, 2021Assignee: PACCAR INCInventors: Randal A. Goffe, Jacob A. Wall
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Patent number: 10934910Abstract: An exhaust gas cleaning catalyst that has: a substrate having a wall flow structure, wherein an entry side cell, in which the end part on an exhaust gas inflow side is open, and an exit side cell, in which the end part on the exhaust gas outflow side is open, are divided by a porous dividing wall; and a first catalyst layer that includes a metal catalyst and is disposed within the dividing wall so as to be in contact with the exit side cell and not in contact with the entry side cell, and no catalyst layer is provided in the region in contact with the entry side cell.Type: GrantFiled: March 16, 2018Date of Patent: March 2, 2021Assignee: CATALER CORPORATIONInventors: Haruka Makino, Yasutaka Nomura, Satoru Inoda, Sho Hoshino, Ryota Onoe
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Patent number: 10918988Abstract: 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: GrantFiled: September 12, 2019Date of Patent: February 16, 2021Assignee: NGK Insulators, Ltd.Inventors: Tetsuya Makino, Makoto Teranishi, Tadato Ito, Etsuji Ohara
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Patent number: 10918987Abstract: 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: GrantFiled: February 22, 2019Date of Patent: February 16, 2021Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Onur Ulas Car, Markus Paulovsky
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Patent number: 10920640Abstract: 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: GrantFiled: January 23, 2020Date of Patent: February 16, 2021Assignee: Eberspächer Exhaust Technology GmbHInventor: Enver Kurpejovic
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Patent number: 10905992Abstract: 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: GrantFiled: September 26, 2017Date of Patent: February 2, 2021Assignee: DENSO CORPORATIONInventors: Hirokatsu Imagawa, Hironori Niwa
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Patent number: 10895183Abstract: 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: GrantFiled: January 28, 2019Date of Patent: January 19, 2021Assignee: BASF CorporationInventors: Olga Gerlach, Xinyi Wei, Andreas Sundermann, Emily Schulman, Stanley A. Roth
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Patent number: 10895186Abstract: 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: GrantFiled: July 18, 2017Date of Patent: January 19, 2021Assignee: Vitesco Technologies GmbHInventors: Peter Hirth, Christoph Pabst
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Patent number: 10882796Abstract: 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: GrantFiled: March 1, 2019Date of Patent: January 5, 2021Assignee: NGK Insulators, Ltd.Inventors: Hiroaki Noguchi, Shuichi Ichikawa, Akifumi Kawakami, Mitsuhiro Ito
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Patent number: 10875010Abstract: 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: GrantFiled: May 1, 2020Date of Patent: December 29, 2020Assignee: Johnson Matthey Public Limited CompanyInventor: Shuhei Nagaoka
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Patent number: 10870082Abstract: 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: GrantFiled: May 23, 2018Date of Patent: December 22, 2020Assignee: MAZDA MOTOR CORPORATIONInventor: Eijiro Tanaka
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Patent number: 10870077Abstract: 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: GrantFiled: June 26, 2019Date of Patent: December 22, 2020Assignee: DENSO CORPORATIONInventors: Yasushi Takayama, Shusaku Yamamura
