序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 JPS49128124A - JP4398173 1973-04-18 JPS49128124A 1974-12-07
An exhaust gas purifier for internal combustion engine, has a porous filter impregnated with a desired adsorbent or a porous filter made of bulk metal catalyst. Instead of extending perpendicular to the main axial direction of the exhaust pipe, the filter extends axially and is mounted on a metal screen cylinder having a baffle which diverts the flow of exhaust gas toward and through the cylinder and filter. In this manner, the exhaust gas flows axially into the screen cylinder and then passes radially through the filter to a second flow passage which is connected to the purifier outlet. Very low back pressure is obtained with this arrangement.
162 EXHAUST SYSTEM FOR A LEAN-BURN INTERNAL COMBUSTION ENGINE INCLUDING SCR CATALYST EP12809839.9 2012-12-11 EP2790813B1 2018-05-16 BLAKEMAN, Philip; BROWN, Gavin Michael; CHIFFEY, Andrew Francis; GAST, Jane; PHILLIPS, Paul Richard; RAJARAM, Raj; SPREITZER, Glen; WALKER, Andrew
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.
163 EXHAUST GAS PURIFICATION CATALYST, EXHAUST GAS PURIFICATION DEVICE AND FILTER, AND PRODUCTION METHOD FOR SAID CATALYST EP13760652 2013-02-28 EP2826558A4 2016-01-06 UETANI MASATOSHI; MISHIMA TAKAHIRO
Provided is an exhaust gas purification catalyst having high catalytic activity enabling combustion of PM (particulate matter) at low temperatures and excellent thermal resistance, an exhaust gas purification device and filter having high combustion efficiency of PM and excellent durability, and a method for producing the catalyst. The exhaust gas purification catalyst of the present invention is composite oxide particles containing at least one alkali metal, Si, and Zr.
164 EXHAUST SYSTEM FOR A LEAN-BURN INTERNAL COMBUSTION ENGINE INCLUDING SCR CATALYST EP12809839.9 2012-12-11 EP2790813A1 2014-10-22 BLAKEMAN, Philip; BROWN, Gavin Michael; CHIFFEY, Andrew Francis; GAST, Jane; PHILLIPS, Paul Richard; RAJARAM, Raj; SPREITZER, Glen; WALKER, Andrew
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.
165 COMPOSITE OXIDE FOR USE AS EXHAUST GAS CLEAN-UP CATALYST, AND FILTER EP07829946 2007-10-10 EP2077253A4 2014-09-10 KANESHIRO YUKI; NAGATOMI AKIRA
A composite oxide for exhaust gas purification catalysts, which comprises Ce, Bi, R and oxygen and satisfies 0 < x ‰¤ 0.4 and 0 < y < 1.0 when the molar ratio of Ce, Bi and R of the oxide is represented as (1-x-y), x and Y respectively. The composite oxide has an X-ray diffraction peak corresponding to that of a fluorite structure. In the composite oxide, R contains one or two of Pr and Tb. The exhaust gas purification catalyst is favorable for a PM combustion catalyst.
166 PARTICULATE COMBUSTION CATALYST, PARTICULATE FILTER AND EXHAUST GAS PURIFYING APPARATUS EP08874480.0 2008-10-23 EP2289619A1 2011-03-02 ASANUMA, Takahito; TAKAGI, Hiromitsu; YASHIMA, Isamu; ABE, Akira

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.

167 Katalysatorvorrichtung für benzinbetriebene Otto-Motoren EP07014378.9 2007-07-21 EP1884632A3 2009-09-02 Amft, Karl

Eine Katalysatorvorrichtung (1) für benzinbetriebene OttoMotoren hat einen Katalysatorkörper (2), der aus einem Substrat als Träger für eine Edelmetallbeschichtung und der Edelmetallbeschichtung ausgebildet ist.

Um eine derartige Katalysatorvorrichtung mit einem vergleichsweise geringen wirtschaftlichen Aufwand herzustellen, wobei die Katalysatorvorrichtung den gesetzlich vorgegebenen Anforderungsprofilen genügen muss, wird vorgeschlagen, dass das Substrat des Katalysatorkörpers (2) zumindest teilweise aus Silizium-Karbid (SIC)-Schaumkeramik ausgebildet ist.

168 COMPOSITE OXIDE FOR USE AS EXHAUST GAS CLEAN-UP CATALYST, AND FILTER EP07829946.8 2007-10-10 EP2077253A1 2009-07-08 KANESHIRO, Yuki; NAGATOMI, Akira

A composite oxide for exhaust gas purification catalysts, which comprises Ce, Bi, R and oxygen and satisfies 0 < x ≤ 0.4 and 0 < y < 1.0 when the molar ratio of Ce, Bi and R of the oxide is represented as (1-x-y), x and Y respectively. The composite oxide has an X-ray diffraction peak corresponding to that of a fluorite structure. In the composite oxide, R contains one or two of Pr and Tb. The exhaust gas purification catalyst is favorable for a PM combustion catalyst.

169 PEROVSKITE-TYPE COMPOSITE OXIDE, CATALYST COMPOSITION AND METHOD FOR PRODUCING PEROVSKITE-TYPE COMPOSITE OXIDE EP05721526 2005-03-18 EP1728766A4 2009-04-22 TANAKA HIROHISA; TAN ISAO; UENISHI MARI; KAJITA NOBUHIKO; TANIGUCHI MASASHI; KANEKO KIMIYOSHI; MITACHI SENSHU; KIMURA MAREO; NARITA KEIICHI; SATO NOBORU
A perovskite-type composite oxide which is represented by the following general formula (1): AxB(1-y)PdyO3+δ (1) [wherein A represents at least one element selected from among rare earth elements and alkaline earth metals, B represents at least one element selected from among transition elements (exclusive of rare earth elements and Pd), Al and Si, x represents an atomic ratio which is 1 < x, y represents an atomic ratio which is 0 < y ≤ 0.5, and δ represents a value corresponding to excessive oxygen]; a method for producing the above perovskite-type composite oxide which comprises treating raw materials based on the atomic ratios described in the above general formula; and a catalyst composition comprising the above perovskite-type composite oxide. The perovskite-type composite oxide has a high ratio of Pd being incorporated into the solid solution thereof, and also exhibits stable quality.
170 EXHAUST TREATMENT SYSTEM FOR DIESEL ENGINES EP06845421.4 2006-12-14 EP1963632A2 2008-09-03 KUMAR, Sanath
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.
171 Method of manufacturing a honeycomb structure EP06251402.1 2006-03-16 EP1702902B1 2008-07-23 Ono, Yoshiro, LA & IPD, NGK Insulators, Ltd.
172 Système de traitement des NOx de gaz d'échappement d'un moteur thermique de véhicule automobile EP05292350.5 2005-11-07 EP1662105B1 2008-04-30 Baudin, François; Schneider, Stéphanie; Lendresse, Yvane; Calvo, Sabine; Da Costa, Patrick; Djega-Mariadassou, Gérald; Thomas, Cyril; Khacef, Ahmed; Cormier, Jean-Marie
173 Honeycomb structure and manufacturing method thereof EP06251402.1 2006-03-16 EP1702902A1 2006-09-20 Ono, Yoshiro, LA & IPD, NGK Insulators, Ltd.

A honeycomb structure is made of cordierite and has a plurality of cells separated from each other by porous partition walls and functioning as fluid passages. The honeycomb structure has a thermal expansion coefficient of 0.25x10-6/°C or less, an average pore diameter is 3 to 8 µm, and a porosity of 25% or more. The honeycomb structure is made of cordierite excellent in thermal shock resistance even with large pore diameters and high porosity.

174 Exhaust gas purifying catalyst and exhaust gas purifying method EP02011368.4 1997-12-09 EP1252924B1 2005-07-27 Ikeda, Yasuo, c/o Toyota Jidosha K. K.; Hirata, Hirohito, c/o Toyota Jidosha K. K.
175 Exhaust gas purifying catalyst and exhaust gas purifying method EP04014601.1 1997-12-09 EP1475147A1 2004-11-10 Ikeda, Yasuo; Hirata, Hirohito

An exhaust gas purifying catalyst is formed of a first powder formed of porous particles supporting rhodium (Rh), and a second powder formed of porous particles supporting platinum (Pt) and a nitrogen oxides (NOx)-adsorbing material. The second powder and the first powder are present in a mixed state. In this catalyst, Rh is supported apart from Pt and the NOx adsorbent, so that reduction of the oxidizing performance of Pt is prevented, and so that the problems of poor compatibility between Rh and the NOx adsorbent is eliminated.

The catalyst therefore maintains high NOx removing rate not only during an initial period but also after the endurance test.

176 Exhaust gas purifying catalyst and exhaust gas purifying method EP97121697.3 1997-12-09 EP0852966B1 2004-06-30 Ikeda, Yasuo; Hirata, Hirohito
177 LEAN NOX TRAP TYPE EXHAUST GAS PURIFYING CATALYST AND EXHAUST GAS CLEANING SYSTEM EP12776289 2012-03-06 EP2636447A4 2015-02-25 NAITO TETSURO; HANAKI YASUNARI; NAKAMURA MASANORI; NAGATA MASATO
To provide a lean NOx trap type exhaust gas purifying catalyst with excellent durability and an exhaust gas cleaning system having this exhaust gas purifying catalyst. The lean NOx trap type exhaust gas purifying catalyst contains platinum, palladium and rhodium as the catalyst noble metals, an inorganic oxide that carries the catalyst noble metals, and a NOx adsorbent made of at least one type selected from the group of magnesium, barium, sodium, potassium, and cerium; among the inorganic oxides, the inorganic oxide carrying palladium contains cerium and aluminum and/or zirconium. The inorganic oxide carrying palladium contains cerium in the CeO 2 -equivalent quantity in the range of 1 to 20 wt%. The exhaust gas cleaning system has the lean NOx trap type exhaust gas purifying catalyst and another catalyst containing a catalyst noble metal and located on the upstream side from the lean NOx trap type exhaust gas purifying catalyst with respect to the exhaust gas flow direction.
178 Carbon dioxide absorbent fluid for a carbon dioxide sequestering system on a vehicle. EP14161350.5 2014-03-24 EP2789377A3 2015-01-21 Ihms, David, W.; Myers, Bruce A.

A carbon dioxide storage means stores the carbon dioxide released in a heat exchanger (18). The heat exchanger (18) cools the exhaust gas (16) emitted by the internal combustion engine, and includes a thermal electric generator (teg (54)) configured to couple thermally the exhaust gas chamber (50) to the absorber fluid chamber (52) in a manner effective to heat the CO2 absorbent fluid (24) by heat from the engine exhaust to release CO2 gas from the CO2 absorbent fluid (24) and generate electricity in response to a temperature difference therebetween. The CO2 absorbent fluid (24) is one of: a) an aliphatic di-functional nitrile (e.g. pimelonitrile); and b) an oligomeric poly-acrylonitrile (PAN).

179 Carbon dioxide absorbent fluid for a carbon dioxide sequestering system on a vehicle. EP14161350.5 2014-03-24 EP2789377A2 2014-10-15 Ihms, David, W.; Myers, Bruce A.

A carbon dioxide storage means stores the carbon dioxide released in a heat exchanger (18). The heat exchanger (18) cools the exhaust gas (16) emitted by the internal combustion engine, and includes a thermal electric generator (teg (54)) configured to couple thermally the exhaust gas chamber (50) to the absorber fluid chamber (52) in a manner effective to heat the CO2 absorbent fluid (24) by heat from the engine exhaust to release CO2 gas from the CO2 absorbent fluid (24) and generate electricity in response to a temperature difference therebetween. The CO2 absorbent fluid (24) is one of: a) an aliphatic di-functional nitrile (e.g. pimelonitrile); and b) an oligomeric poly-acrylonitrile (PAN).

180 DEVICE AND METHOD FOR REDUCTION OF A GAS COMPONENT IN AN EXHAUST GAS FLOW OF A COMBUSTION ENGINE EP01926318.5 2001-04-30 EP1284807B1 2010-10-27 JOBSON, Edward; CIDER, Lennart; WIRMARK, Göran
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.
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