| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | EXHAUST SYSTEM | US15291143 | 2016-10-12 | US20170107878A1 | 2017-04-20 | Gavin Michael BROWN; Andrew Francis CHIFFEY; Paul Richard PHILLIPS; Jonathan RADCLIFFE |
| An exhaust system for an internal combustion engine, the exhaust system comprising, a lean NOx trap, a NOx storage and reduction zone on a wall flow monolithic substrate having a pre-coated porosity of 50% or greater, the NOx storage and reduction zone comprising a platinum group metal loaded on one or more first support, the or each first support comprising one or more alkaline earth metal compound, and a selective catalytic reduction zone on a monolithic substrate, the selective catalytic reduction zone comprising copper or iron loaded on a second support, the second support comprising a molecular sieve. | ||||||
| 62 | CATALYTIC CONVERTERS WITH AGE-SUPRESSING CATALYSTS | US15247506 | 2016-08-25 | US20170095806A1 | 2017-04-06 | Gongshin Qi; Ryan J. Day; Se H. Oh; Xingcheng Xiao; Ming Yang |
| A catalytic converter includes a catalyst. The catalyst includes a support, platinum group metal (PGM) particles dispersed on the support, and a barrier formed on the support. The barrier is disposed between a first set of the PGM particles and a second set of the PGM particles to suppress aging of the PGM particles. | ||||||
| 63 | LOW-TEMPERATURE OXIDATION CATALYSTS | US15247230 | 2016-08-25 | US20170095796A1 | 2017-04-06 | Gongshin Qi; Se H. Oh; Wei Li |
| An example of a catalytic converter includes a catalyst to improve low temperature oxidation of carbon monoxide (CO) and hydrocarbons. The catalyst includes a support, which includes a porous alumina structure and a rare earth metal oxide promoter impregnated into pores of the porous alumina structure. The rare earth metal oxide promoter is selected from the group consisting of CeO2 and CeO2—ZrO2. A platinum group metal (PGM) is bonded to the support. | ||||||
| 64 | GLASS CATALYST COMPOSITIONS FOR IMPROVED HYDROTHERMAL DURABILITY | US15211830 | 2016-07-15 | US20170016367A1 | 2017-01-19 | Paul J. McGinn; James Zokoe |
| A diesel soot filter includes a substrate having a surface disposed at least partially within a fluid path of the diesel soot filter. A glass catalyst is disposed on the surface of the substrate such that an exhaust gas contacts at least a portion of a surface of the glass catalyst as the exhaust gas moves within the diesel soot filter. The glass catalyst comprises a plurality of alkali metal ions disposed within the glass catalyst and releasable to the surface of the glass catalyst at a controlled rate and the alkali metal ions combust with the soot as the exhaust gas travels along the fluid path. An oxide basis of the glass catalyst comprises Silicon (Si), Potassium (K), Cesium (Ce), and Zirconium (Zr) | ||||||
| 65 | CATALYTIC CONVERTER FOR VEHICLES | US14663394 | 2015-03-19 | US20160273428A1 | 2016-09-22 | ATEF MOHAMED FATHY MOHAMED; TURKI MOHAMMED HABEEBULLAH; IBRAHIM HUSSEIN AHMED ABD EL-RAHIM |
| The catalytic converter for vehicles uses lithium oxide as a catalyst metal that in the presence of alkaline solution, such as urea solution (Adblue™), and an activated carbon disc filter prevents environmentally harmful exhaust emission of vehicles. | ||||||
| 66 | Positive ignition engine and exhaust system comprising catalysed zone-coated filter substrate | US14259876 | 2014-04-23 | US09347349B2 | 2016-05-24 | Philip Gerald Blakeman; David Robert Greenwell |
| A positive ignition engine comprising an exhaust system, which comprises a catalysed filter for filtering particulate matter from exhaust gas emitted from a positive ignition internal combustion engine, which filter comprising a porous substrate having a total substrate length and having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a first porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a washcoat composition which is a NOx absorber catalyst washcoat composition comprising at least one precious metal; or a selective catalytic reduction (SCR) catalyst washcoat composition, wherein a second porous structure of the washcoated porous substrate contains pores of a second mean pore size, wherein the second mean pore size is less than the first mean pore size, which NOx absorber catalyst washcoat or SCR catalyst washcoat being axially arranged on the porous substrate as a first zone comprising the inlet surfaces of a first substrate length less than the total substrate length and a second zone comprising the outlet surfaces of a second substrate length less than the total substrate length, wherein the sum of the substrate length in the first zone and the substrate length in the second zone is ≧100%, wherein: (i) a washcoat loading in the first zone >second zone; or (ii) where the washcoat composition is a NOx absorber catalyst washcoat composition, both a washcoat loading and a total precious metal loading in the first zone >second zone, and wherein the first zone is disposed upstream of the second zone. | ||||||
| 67 | Exhaust system for a lean-burn internal combustion engine including SCR catalyst | US13711138 | 2012-12-11 | US09259684B2 | 2016-02-16 | Philip Gerald Blakeman; Gavin Michael Brown; Andrew Francis Chiffey; Jane Gast; Paul Richard Phillips; Raj Rao Rajaram; Glen Spreitzer; Andrew Peter Walker |
| An exhaust system 20 for an internal combustion engine comprises a) a first catalysed substrate monolith 12 comprising a first washcoat coating disposed in a first washcoat zone 16 of the substrate monolith and a second washcoat coating disposed in a second washcoat zone 18 of the substrate monolith, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one material supporting copper for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat; and b) a second catalysed substrate monolith 14 comprising a catalyst for selectively catalysing the reduction of oxides of nitrogen to dinitrogen with a nitrogenous reductant disposed downstream from the first catalysed substrate monolith. | ||||||
| 68 | DIAGNOSIS AND TREATMENT OF SELECTIVE CATALYTIC REDUCTION CATALYST | US14020627 | 2013-09-06 | US20150072855A1 | 2015-03-12 | Aleksey Yezerets; Neal W. Currier; Xu Chen; Junhui Li; Krishna Kamasamudram; Hongbin Ma; Tamas Szailer; Cary Henry; Roger Fox |
| Described herein is a selective catalytic reduction (SCR) catalyst treatment system that includes a vanadium-based SCR catalyst contaminated with a water-soluble contaminant. The SCR catalyst treatment system also includes a water delivery system that is configured to apply water to the vanadium-based SCR catalyst to remove the water-soluble contaminant from the vanadium-based SCR catalyst. | ||||||
| 69 | METHOD FOR COMBUSTING DIESEL EXHAUST GAS | US14016795 | 2013-09-03 | US20140004026A1 | 2014-01-02 | Takahito ASANUMA; Hiromitsu TAKAGI; Isamu YASHIMA; Akira ABE |
| Provided is a particulate combustion catalyst including a carrier formed of monoclinic zirconium oxide particles, and metallic Ag or Ag oxide, which serves as a catalyst component and is supported on the carrier, wherein the amount of the catalyst component is 0.5 to 10 mass %, as reduced to metallic Ag, on the basis of the mass of the carrier, and preferably, the catalyst has a BET specific surface area of 8 to 21 m2/g. Also provided are a particulate filter coated with the particulate combustion catalyst; and an exhaust gas cleaning apparatus including a particulate filter coated with the particulate combustion catalyst. | ||||||
| 70 | EXHAUST SYSTEM FOR A LEAN-BURN INTERNAL COMBUSTION ENGINE INCLUDING SCR CATALYST | US13711138 | 2012-12-11 | US20130149223A1 | 2013-06-13 | PHILIP GERALD BLAKEMAN; GAVIN MICHAEL BROWN; ANDREW FRANCIS CHIFFEY; JANE GAST; PAUL RICHARD PHILLIPS; RAJ RAO RAJARAM; GLEN SPREITZER; ANDREW PETER WALKER |
| An exhaust system 20 for an internal combustion engine comprises a) a first catalysed substrate monolith 12 comprising a first washcoat coating disposed in a first washcoat zone 16 of the substrate monolith and a second washcoat coating disposed in a second washcoat zone 18 of the substrate monolith, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one material supporting copper for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat; and b) a second catalysed substrate monolith 14 comprising a catalyst for selectively catalysing the reduction of oxides of nitrogen to dinitrogen with a nitrogenous reductant disposed downstream from the first catalysed substrate monolith. | ||||||
| 71 | Composite oxide for use as exhaust gas purification catalyst and filter | US12312034 | 2007-10-10 | US08071501B2 | 2011-12-06 | Yuki Kaneshiro; Akira Nagatomi |
| A composite oxide for exhaust gas purification catalysts, which comprises Ce, Bi, R and oxygen and satisfies 0 | ||||||
| 72 | Device and method for reduction of a gas component in an exhaust gas flow of a combustion engine | US10065624 | 2002-11-04 | US08065870B2 | 2011-11-29 | Edward Jobson; Lennart Cider; Goran Wirmark |
| Method and device for reduction of a gas component in an exhaust gas flow of a combustion engine (1) that is adapted for operation by a lean air/fuel mixture. An exhaust pipe (21) is included for transport of the exhaust gas flow from the engine (1). A separation unit (22) is also included that is arranged along the exhaust pipe (21), which separation unit (22) has a wall structure (32) of a material which provides separation of the gas component from the exhaust gas flow by means of a selective passage of the gas component before other gas components in the exhaust gas flow. The method provides for a reduction and a separation unit that is intended to be utilized during such a reduction. An improved reduction of in particular NOx compounds from a so-called “lean-burn” engine is also provided. | ||||||
| 73 | Exhaust-gas purifying catalyst | US11010363 | 2004-12-14 | US07585478B2 | 2009-09-08 | Junya Shirahata; Kohei Tomiyasu; Kazunori Ito |
| An exhaust-gas purifying catalyst includes a mantle, two or more honeycomb-shaped supports fastened in the mantle so as to be separated at intervals, and a catalytic layer disposed on the respective honeycomb-shaped supports. The honeycomb-shaped supports include a first honeycomb-shaped support, disposed on a most upstream side of the mantle with respect to a flow of exhaust gases, and a second honeycomb-shaped support, disposed next to the first honeycomb-shaped support on a downstream side of the mantle with respect to the flow of exhaust gases. The catalytic layer includes a loading layer formed on the respective honeycomb-shaped supports, and a catalytic ingredient loaded on the loading layer. The catalytic layer disposed on the first honeycomb-shaped support includes at least Rh in a loading amount of 0.8 g or more with respect to 1 L of an apparent volume of the first honeycomb-shaped support. | ||||||
| 74 | Catalytic reduction of NOx | US12380414 | 2009-02-27 | US20090169451A1 | 2009-07-02 | Anders Andreasson; Guy Richard Chandler; Claus Friedrich Goersmann; James Patrick Warren; Georg Huethwohl |
| A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed. | ||||||
| 75 | DOC and particulate control system for diesel engines | US11314922 | 2005-12-21 | US20070137187A1 | 2007-06-21 | Sanath Kumar |
| The present invention is directed to an emission treatment system for the treatment and/or conversion of engine emissions and particulate matter from diesel engines. The emission treatment system of the present invention comprises an upstream oxidation catalyst, a particulate filter or soot filter section and optionally a downstream catalytic element or clean-up catalyst for the treatment and/or conversion of any remaining emission gas stream contaminants. | ||||||
| 76 | Exhaust-gas purifying catalyst | US11010363 | 2004-12-14 | US20050170953A1 | 2005-08-04 | Junya Shirahata; Kohei Tomiyasu; Kazunori Ito |
| An exhaust-gas purifying catalyst includes a mantle, two or more honeycomb-shaped supports fastened in the mantle so as to be separated at intervals, and a catalytic layer disposed on the respective honeycomb-shaped supports. The honeycomb-shaped supports include a first honeycomb-shaped support, disposed on a most upstream side of the mantle with respect to a flow of exhaust gases, and a second honeycomb-shaped support, disposed next to the first honeycomb-shaped support on a downstream side of the mantle with respect to the flow of exhaust gases. The catalytic layer includes a loading layer formed on the respective honeycomb-shaped supports, and a catalytic ingredient loaded on the loading layer. The catalytic layer disposed on the first honeycomb-shaped support includes at least Rh in a loading amount of 0.8 g or more with respect to 1 L of an apparent volume of the first honeycomb-shaped support. | ||||||
| 77 | Exhaust emission control device and method of controlling exhaust emission | US10168326 | 2002-06-20 | US06829891B2 | 2004-12-14 | Zenichiro Kato; Hiromichi Yanagihara; Toshihisa Sugiyama; Yoshimitsu Henda; Kazuhiko Shiratani; Rentaro Kuroki |
| A first heat-resistant filter medium is disposed in an exhaust pathway of an internal combustion engine. The first heat-resistant filter medium traps hydrocarbon compounds and carbon-containing particulates included in a flow of exhaust gas in a dispersive manner to bring the respective particulates and hydrocarbon compounds in contact with oxygen included in the exhaust gas. The trapped hydrocarbon compounds and the trapped carbon-containing particulates are subjected to combustion with the exhaust gas having a filter inflow temperature lower than a combustible temperature of the carbon-containing particulates. A second heat-resistant filter medium is further disposed downstream of the first heat-resistant filter medium to trap the remaining carbon-containing particulates, which have not been trapped by the first heat-resistant filter medium but have passed through the first heat-resistant filter medium. This arrangement desirably enhances the reduction rate of the particulates. | ||||||
| 78 | Device and method for reduction of a gas component in an exhaust gas flow of a combustion engine | US10065624 | 2002-11-04 | US20030086850A1 | 2003-05-08 | Edward Jobson; Lennart Cider; Goran Wirmark |
| Method and device for reduction of a gas component in an exhaust gas flow of a combustion engine (1) that is adapted for operation by a lean air/fuel mixture. An exhaust pipe (21) is included for transport of the exhaust gas flow from the engine (1). A separation unit (22) is also included that is arranged along the exhaust pipe (21), which separation unit (22) ahs a wall structure (32) of a material which provides separation of the gas component from the exhaust gas flow by means of a selective passage of the gas component before other gas components in the exhaust gas flow. The method provides for a reduction and a separation unit that is intended to be utilized during such a reduction. An improved reduction of in particular NOx compounds from a so-called nulllean-burnnull engine is also provided. | ||||||
| 79 | Exhaust emission control device and method of controlling exhaust emission | US10168326 | 2002-06-20 | US20020189247A1 | 2002-12-19 | Zenichiro Kato; Hiromichi Yanagihara; Toshihisa Sugiyama; Yoshimitsu Henda; Kazuhiko Shiratani; Rentaro Kuroki |
| A first heat-resistant filter medium is disposed in an exhaust pathway of an internal combustion engine. The first heat-resistant filter medium traps hydrocarbon compounds and carbon-containing particulates included in a flow of exhaust gas in a dispersive manner to bring the respective particulates and hydrocarbon compounds in contact with oxygen included in the exhaust gas. The trapped hydrocarbon compounds and the trapped carbon-containing particulates are subjected to combustion with the exhaust gas having a filter inflow temperature lower than a combustible temperature of the carbon-containing particulates. A second heat-resistant filter medium is further disposed downstream of the first heat-resistant filter medium to trap the remaining carbon-containing particulates, which have not been trapped by the first heat-resistant filter medium but have passed through the first heat-resistant filter medium. This arrangement desirably enhances the reduction rate of the particulates. Since most of the particulates are trapped by the first filter medium, the second filter medium can keep the high reduction rate of the particulates over a long time period. | ||||||
| 80 | Method for using a close coupled catalyst | US09425714 | 1999-10-22 | US06254842B1 | 2001-07-03 | Zhicheng Hu; Ronald M. Heck; Harold N. Rabinowitz |
| A stable, close-coupled catalyst, an article comprising the close-coupled catalyst and a related method of operation. The close-coupled catalyst comprises a catalyst support and a palladium catalytic component. Preferably and optionally, there are stabilizers including alkaline metal oxide, and rare earth metal components selected from the neodymium and lanthanum components. The close-coupled catalyst composition includes substantially no additional oxygen storage component such as praseodymium or cerium compounds. There is preferably a catalyst such as a three-way catalyst downstream of the close-coupled catalyst. The downstream catalyst preferably includes an oxygen storage component such as cerium oxide or praseodymium oxide. | ||||||
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