Patents Examined by Tom Duong
  • Patent number: 9046024
    Abstract: The electricity is suppressed from flowing through a case (5) of an electric heating catalyst (1).
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: June 2, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Mamoru Yoshioka
  • Patent number: 9017615
    Abstract: Electricity is suppressed from flowing to a case (4) of an electrically heated catalyst (1).
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 28, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mamoru Yoshioka, Takashi Watanabe
  • Patent number: 9011782
    Abstract: An after-treatment system includes a Selective Catalytic Reduction (SCR) catalyst or a similar aftertreatment unit or brick that may be inserted into the opened end of a sleeve. The aftertreatment brick includes a substrate matrix with catalytic material that extends between a first face and a second face. A mantle is disposed around the substrate matrix and extends between a first rim proximate the first face and a second rim proximate the second face. The mantel may include a overhang extension that extends the first rim of the mantle beyond the first face of the substrate matrix. To enable retrieval of the SCR catalyst from the sleeve, a retrieval feature is disposed on a readily accessible, inner surface of the overhang extension.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: April 21, 2015
    Assignee: Caterpillar Inc.
    Inventors: Mirza P. Baig, Thomas W. Manning, Rick E. Jeffs, Kristian N. Engelsen, Andrew M. Denis, Pradyumna V. Rao
  • Patent number: 9011783
    Abstract: The invention relates to a catalyst for purifying the exhaust gases from diesel engines, in particular an oxidation catalyst which is particularly well suited for the purification of exhaust gases from heavy goods vehicles when further exhaust gas purification units such as a particle filter and/or a nitrogen oxide reduction catalyst are installed downstream thereof. The catalyst contains two catalytically active coatings which have different compositions and of which only one is in direct contact with the outflowing exhaust gas. The coating (1) which is in direct contact with the outflowing exhaust gas is platinum-rich and contains a total amount of noble metal (platinum and palladium) which is greater than that in the coating (2) which is not in direct contact with the outflowing exhaust gas.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: April 21, 2015
    Assignee: Umicore AG & Co. KG
    Inventors: Frank-Walter Schuetze, Stéphanie Frantz, Gerald Jeske, Christoph Hengst
  • Patent number: 9005535
    Abstract: An exhaust treatment device includes an inner shell, an outer shell and insulation material positioned between the inner shell and the outer shell. An inlet tube has an end in communication with a cavity defined by the inner shell. A substrate for treating engine exhaust is positioned within the inner shell. A baffle plate includes a plurality of apertures positioned such that the exhaust passes through the apertures prior to entering the substrate. The baffle plate supports an end of the inner shell and the inlet tube.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: April 14, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Megan Wikaryasz, Douglas Otrompke
  • Patent number: 9005533
    Abstract: A PCM device (1) is provided for an exhaust system of an internal combustion engine, especially of a motor vehicle. A simplified installation of the PCM device (1), with reduced heat stresses, is achieved through the provision of at least one storage plate (2), which has two plate bodies (3, 4), which follow each other, enclose a storage space (7) filled with heat storage material (18) and have a wave structure (5, 6) each. The wave structure (5) of one plate body (3) extends sloped in relation to the wave structure (6) of the other plate body (4).
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: April 14, 2015
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Gerd Gaiser
  • Patent number: 8999251
    Abstract: Inorganic fiber formed articles containing a mat-like aggregate of inorganic fibers, the articles obtained by a needling treatment wherein a needling density per unit area of a surface of a mat exceeds 50 punches/cm2, where: i) a ratio of a number NA of fiber bundles extending in a thickness direction and located in a region with a predetermined width W of section A in a predetermined direction, to a number NB of fiber bundles extending in the thickness direction and located in a region with a predetermined width W of section B in a direction orthogonal to the predetermined direction, NA/NB, is 0.5 or less; ii) a width of each of fiber bundle in sections A and B in the thickness direction is 0.3 mm or less; and iii) a needle mark is present in any 3 mm×3 mm region on the surface of the mat.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: April 7, 2015
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Toshiaki Sasaki, Tomoyuki Kobayashi, Hisashi Aoyagi
  • Patent number: 8992821
    Abstract: A pass-through catalytic substrate can comprise a plurality of porous ceramic substrate walls defining flow channels extending between an inlet end and an outlet end of the catalytic substrate. The pass-through catalytic substrate can include a plurality of porous ceramic beveled corner portions positioned at intersecting corners of the substrate walls within the flow channels. In one example, the porous ceramic beveled corner portions each include a heat capacity less than about 1.38 J/cm3/K. In another example, a catalytic washcoat layer can be provided for coating the porous ceramic substrate walls and the porous ceramic beveled corner portions. Methods for producing a pass-through catalytic substrate also provide porous ceramic beveled corner portions.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: March 31, 2015
    Assignee: Corning Incorporated
    Inventors: Keith Norman Bubb, Cameron Wayne Tanner
  • Patent number: 8992846
    Abstract: A mounting mat for an exhaust gas treatment device includes a blend of inorganic fibers and organic nanofibrillated fibers. An exhaust gas treatment device includes a housing and a fragile structure mounted within the housing by the mounting mat that is disposed in a gap between the housing and the fragile catalyst support structure. Additionally disclosed are methods of making a mounting mat for an exhaust gas treatment device and for making an exhaust gas treatment device incorporating the mounting mat.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: March 31, 2015
    Assignee: Unifrax I LLC
    Inventor: Mark Beauharnois
  • Patent number: 8992844
    Abstract: A lean NOx trap type exhaust gas purifying catalyst having a catalyst noble metal selected from a group consisting of platinum, palladium and rhodium, an inorganic oxide that carries the catalyst noble metal, and at least one NOx adsorbent one selected from a group of magnesium, barium, sodium, potassium and cesium. The inorganic oxide carrying palladium containing cerium in a CeO2-equivalent quantity in a range of 1 to 20 wt %, and at least one of aluminum and zirconium.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: March 31, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tetsuro Naito, Yasunari Hanaki, Masanori Nakamura, Masato Nagata
  • Patent number: 8986619
    Abstract: Disclosed is an exhaust air purification device, which enables heating a carrier uniformly and heating a catalyst supported on the carrier above an active temperature thereof even when an engine is run on a cold-start mode. Specifically disclosed is an exhaust air purification device, which includes a hollow case as an exterior, a cylindrical carrier housed in the case and having a catalyst supported thereon, and a pair of electrodes arranged on the outer circumferential surface of the carrier. In the device, the carrier is electrically heated through the pair of electrodes so that the catalyst is heated to an active temperature thereof. In the device, each of the pair of electrodes is placed on an arc-shaped outer circumferential segment of the carrier that has a central angle of 20 to 40 degrees, and the electrodes are opposed to each other with the phase difference of 180 degrees.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: March 24, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kinoshita Yasuo, Tadashi Takagaki, Kazuomi Yamanishi, Takayoshi Doi, Tatsuo Iida
  • Patent number: 8974740
    Abstract: An exhaust treatment component mounting system including an exhaust treatment component canister that includes a cleat ring, and an exhaust treatment component housing including a radially outwardly extending flange. A torsion rod including a first end that mates with the flange of the housing, and a second end including a coupling that mates with the cleat ring, wherein during connection between the first end and the second end of the torsion rod, the canister is rigidly secured to the housing.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 10, 2015
    Assignee: Tenneco Automative Operating Company Inc.
    Inventor: John Stanavich
  • Patent number: 8968667
    Abstract: The present invention relates to an electrocatalytic system for the joint treatment of oxidizing polluting entities of the NOx type and reducing polluting entities of the hydrocarbons HC or CO type present in a gas to be purified, in particular an exhaust gas resulting from a combustion engine, said system comprising: a catalyst A for reduction of the polluting entities of the NOx type, a catalyst B for oxidation of the polluting entities of the hydrocarbons HC type and CO, a compound E which conducts electrons and ions by oxide ions, said catalysts A and B being in contact with the compound E, said compound E being composed of an oxide which conducts ions and electrons corresponding to the molar formulation: Ce1-y-zO2-xMyNz in which Ce is cerium, M is an element chosen from: Gd, Y, Sc, Sm, La, Pr, Nd, Er or Tb, y is between 0.01 and 0.4, N is an element having several degrees of valency chosen from: Ti, V, Cr, Mn, Fe, Co, Ni or Cu, z is less than 0.4 and x is greater than 0.05.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: March 3, 2015
    Assignees: Saint-Gobain Centre de Recherches et d'Etudes Europeen, Centre National de la Recherche Scientifique, Universite Claude Bernard-Lyon 1
    Inventors: Agnes Princivalle, Philippe Vernoux, Abdelkader Hadjar, Christian Guizard
  • Patent number: 8968666
    Abstract: A catalytic converter includes an inlet end, an outlet end and a catalyst body. The inlet end is configured to receive an exhaust gas from an engine. An outlet end is configured to output the exhaust gas. A catalyst body includes partitioning members disposed between the inlet end and the outlet end. The catalyst body includes exhaust channels and fluid channels. The exhaust channels are configured to guide the exhaust gas from the inlet end to the outlet end. The fluid channels are configured to receive a fluid from and return the fluid to a waste heat recovery circuit. Each of the exhaust channels and each of the fluid channels includes a respective ones of the partitioning members.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Eugene V. Gonze, Stuart R. Smith
  • Patent number: 8961884
    Abstract: The electricity is suppressed from flowing through a case (5) of an electric heating catalyst (1).
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 24, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Noriaki Kumagai, Mamoru Yoshioka
  • Patent number: 8961886
    Abstract: A honeycomb structure includes at least one honeycomb unit having a plurality of through holes defined by partition walls extending along a longitudinal direction of the honeycomb unit. The honeycomb unit includes zeolite, an inorganic binder, and a noble metal catalyst. The zeolite is ion-exchanged with Cu and/or Fe to reduce NOx on the zeolite by providing ammonia or its precursor. The noble metal catalyst is supported only in a region of the honeycomb unit. The region extends from one end portion of the honeycomb unit in the longitudinal direction over approximately 1.5% or more to approximately 20% or less of an overall length of the honeycomb unit in the longitudinal direction. The region is provided on a downstream side of the honeycomb unit in a direction in which an exhaust gas is configured to flow through the honeycomb unit.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: February 24, 2015
    Assignee: Ibiden Co., Ltd.
    Inventors: Masafumi Kunieda, Ken Yoshimura, Toshiyuki Miyashita
  • Patent number: 8945475
    Abstract: An exhaust post-treatment device is designed in a layered fashion and comprises an exhaust cleaning arrangement lying between a supply chamber and a transition chamber with soot filters lying at both sides of a denitrification-catalytic converter unit, with the transition chamber comprising a mixing chamber open towards the denitrification-catalytic converter unit, in which starting at the soot filters via separate guide channels, the exhaust is injected in the opposite direction of flow and which mixing chamber is limited by guide panels, which form walls of the guide channels extending encompassing along the housing towards the mixing chamber.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: February 3, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Guido Schäffner, Hans Sudmanns, Claudia Riedel
  • Patent number: 8936760
    Abstract: An exhaust gas purification apparatus is provided with: a first soot-accumulation calculation unit 49 which calculates a first soot accumulation amount from an operation state of the engine; a second soot-accumulation calculation unit 51 which calculates a second soot accumulation amount from a total operation time of the engine, a total fuel consumption rate, a pressure difference between front and back of the particulate filter, and the like; a first soot-accumulation correction unit 55 which corrects the first soot accumulation amount calculated by the first soot-accumulation calculation unit 49 to a value greater than the first soot-accumulation amount when the active regeneration starts based on the second soot accumulation amount calculated by the second soot-accumulation calculation unit 51; and a regeneration ending unit 57 which ends the active regeneration when, in such a case that the active regeneration starts based on the corrected soot accumulation amount, the first soot accumulation amount beco
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: January 20, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Ko Takayanagi
  • Patent number: 8932532
    Abstract: A honeycomb structure includes a honeycomb unit having a plurality of through holes defined by partition walls along a longitudinal direction of the honeycomb unit. The honeycomb unit is manufactured by molding raw material paste by extrusion molding and thereafter by firing the molded raw material paste. The raw material paste contains zeolite obtained by ion-exchange with iron ions and an inorganic binder. A specific surface area of the zeolite is more than or equal to approximately 500 m2/g and less than or equal to approximately 800 m2/g. An external surface area of the zeolite is more than or equal to approximately 40 m2/g and less than or equal to approximately 80 m2/g.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: January 13, 2015
    Assignee: Ibiden Co., Ltd.
    Inventors: Masafumi Kunieda, Yosuke Matsukawa
  • Patent number: 8932530
    Abstract: A reducing agent aqueous solution mixing device includes an exhaust pipe, an injector, an inner pipe and a tubular guide member. The exhaust pipe includes an elbow part having a curved portion, and a linear part disposed downstream of the elbow part. The injector is disposed outside of the curved portion, and injects a reducing agent aqueous solution into the elbow part towards the linear part. The inner pipe is disposed downstream of the injector within the exhaust pipe. The inner pipe has an inlet portion opening facing the injector and an outer peripheral surface spaced apart from the inner wall of the linear part. The inner pipe allows the exhaust gas to flow through the inside of the inner pipe and along the outer periphery of the inner pipe. The tubular guide member directs the reducing agent aqueous solution injected from the injector to the inner pipe.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: January 13, 2015
    Assignee: Komatsu Ltd.
    Inventors: Tadashi Iijima, Hirofumi Kizawa, Boku Itou, Shinji Tsujimura, Takashi Katou, Tetsuo Orita, Kanji Namimatsu, Issei Hara, Hiroyuki Tomioka