公开(公告)号：EP2133528A1

公开(公告)日：2009-12-16

申请号：EP08740147.7

申请日：2008-04-03

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： YOSHIDA, Kohei ,  ASANUMA, Takamitsu ,  NISHIOKA, Hiromasa

IPC分类号： F01N3/36 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F02D41/04 ,  F02D43/00

CPC分类号： F01N3/0871 ,  B01D53/9409 ,  B01D53/9445 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2042 ,  B01D2255/206 ,  B01D2255/91 ,  B01D2257/302 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N13/009 ,  F01N13/0093 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2900/1602 ,  F01N2900/1612 ,  F02D41/028 ,  F02D41/0285 ,  Y02T10/22

摘要： An internal combustion engine wherein an SO x trap catalyst (12), an NO x storage catalyst (14), and a fuel addition valve (15) are arranged in an engine exhaust passage. When making the air-fuel ratio of the exhaust gas flowing into the NO x storage catalyst (14) the stoichiometric air-fuel ratio or rich so as to make the NO x storage catalyst (14) release NO x , additional fuel is supplied into the combustion chamber (2) and fuel is added from the fuel addition valve (15). At this time, the amount of additional fuel to the combustion chamber (2) is controlled so that the air-fuel ratio of the exhaust gas exhausted from the combustion chamber (2) becomes the smallest in the range where the SO x trap catalyst (12) does not release SO x .

摘要翻译： 在发动机排气通路内设置有SO x捕集催化剂（12），NO x吸留催化剂（14）和燃料添加阀（15）的内燃机。 当使得流入NO x吸留催化剂（14）的废气的空燃比使化学计量空燃比或浓度使得NO x吸留催化剂（14）释放NO x时，将额外的燃料供应到 燃料室（2）和燃料从燃料添加阀（15）中添加。 此时，控制向燃烧室（2）的附加燃料量，使得从燃烧室（2）排出的废气的空燃比在SO x捕集催化剂（ 12）不释放SO x。

公开(公告)号：EP1938893A3

公开(公告)日：2009-12-16

申请号：EP07252150.3

申请日：2007-05-25

申请人： Nanostellar, Inc.

发明人： Fujdala, Kyle, L. ,  Truex, Timothy J.

IPC分类号： B01J21/12 ,  B01J23/18 ,  F01N3/035

CPC分类号： B01D53/945 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/106 ,  B01D2255/9025 ,  B01J23/42 ,  B01J23/44 ,  B01J23/52 ,  B01J23/6447 ,  B01J35/0006 ,  B01J35/023 ,  B01J37/0036 ,  B01J37/0244 ,  B01J37/0248 ,  F01N3/0231 ,  F01N3/035 ,  F01N3/106 ,  F01N13/009 ,  F01N13/0093 ,  F01N2510/06 ,  F01N2510/0682 ,  F01N2570/10 ,  F01N2610/02 ,  F01N2610/03 ,  Y02A50/2324 ,  Y02T10/22

摘要： An engine exhaust catalyst exhibits improved CO oxidation performance relative to conventional engine exhaust catalysts and includes a first supported catalyst comprising platinum and a second supported catalyst comprising palladium and gold species. The first supported catalyst may be a platinum catalyst, a platinum-palladium catalyst, or a platinum catalyst promoted with bismuth, and the second supported catalyst preferably has a palladium to gold weight ratio of about 0.85:1.0. To improve aged catalyst performance, the first and second supported catalysts are coated onto different layers, zones, or monoliths of the substrate for the engine exhaust catalyst.

公开(公告)号：EP2129883A1

公开(公告)日：2009-12-09

申请号：EP08734586.4

申请日：2008-02-20

申请人： Umicore AG & Co. KG

发明人： SPURK, Paul ,  FRANTZ, Stéphanie ,  LE TALLEC, Thomas ,  TEYSSET, Olivier ,  MUELLER, Wilfried ,  JESKE, Gerald

IPC分类号： F01N3/035 ,  F01N3/20 ,  F01N3/28

CPC分类号： F01N3/0253 ,  F01N3/035 ,  F01N3/101 ,  F01N3/2803 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2340/02 ,  F01N2430/085 ,  F01N2510/0682 ,  F01N2610/03 ,  Y02T10/22

摘要： Soot filters for removing soot from the exhaust gas of lean-burn engines become blocked with progressive operating duration on account of the deposition of soot, and must therefore be regenerated at regular intervals. It has been found that reliable operation of the soot filter is possible only if an active regeneration is carried out from time to time by increasing the exhaust-gas temperature to the soot ignition temperature. For this purpose, an oxidation catalytic converter is usually arranged upstream of the soot filter, and the exhaust-gas temperature is increased by means of the catalytic combustion of additionally injected fuel. Here, the oxidation catalytic converter is subjected to high temperature loading and therefore ages very quickly. It has surprisingly been found that the ageing of the oxidation catalytic converter can be slowed if said oxidation catalytic converter is split into at least two separate catalytic converters and the distance between said separate catalytic converters is 2 to 30 mm.

公开(公告)号：EP1676987B1

公开(公告)日：2009-12-02

申请号：EP04787626.3

申请日：2004-09-02

申请人： Nissan Diesel Motor Co., Ltd.

发明人： MASUDA, Kouji, c/o NISSAN DIESEL MOTOR CO., LTD. ,  HIRATA, Kiminobu, NISSAN DIESEL MOTOR CO., LTD. ,  MASAKI, Nobuhiko, NISSAN DIESEL MOTOR CO., LTD.

IPC分类号： F01N3/20 ,  F01N9/00

CPC分类号： F01N3/208 ,  F01N3/103 ,  F01N3/2013 ,  F01N3/2066 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2470/18 ,  F01N2550/05 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2900/08 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

公开(公告)号：EP2122135A1

公开(公告)日：2009-11-25

申请号：EP07856898.7

申请日：2007-12-19

申请人： Umicore AG & Co. KG

发明人： ECKHOFF, Stephan ,  PHILIPP, Susanne ,  MUELLER, Wilfried ,  KREUZER, Thomas

IPC分类号： F01N3/08 ,  F01N3/20 ,  F01N7/04

CPC分类号： F02D41/028 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/101 ,  F01N3/106 ,  F01N3/2033 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/04 ,  F01N13/107 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2430/085 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/0082 ,  Y02T10/22 ,  Y02T10/26

摘要： Lean mix engines require an exhaust gas system having nitrogen oxide storage catalysts for the removal of nitrogen oxides from the exhaust gases. If the lean mix engine is operated using exhaust gas comprising sulfur, the storage catalysts must be desulfurized from time to time. The desulfurization process has an inherent risk of high emissions of harmful substances. These emissions can be prevented if the cylinders of the lean mix engine are combined in two groups, which emit their exhaust gas in two associated exhaust gas lines, in which at least one nitrogen oxide storage catalyst is disposed. The two exhaust gas lines are combined to a common exhaust gas line behind the storage catalysts, the line comprising a catalyst, which has a three-way function under stoichiometric conditions. The two nitrogen oxide storage catalysts are desulfurized time-shifted from each other. While rich exhaust gas having a high temperature flows through the one storage catalyst for the desulfurization process, lean exhaust gas flows through the second storage catalyst such that the combined exhaust gas has a stoichiometric composition during the entire desulfurization duration. Under the stoichiometric conditions, the catalyst having a three-way function is capable of converting hydrocarbons, carbon monoxide, and nitrogen oxides into harmless components.

公开(公告)号：EP1832728B1

公开(公告)日：2009-10-07

申请号：EP07300800.5

申请日：2007-02-20

申请人： Renault SAS

发明人： DANEAU, Marc ,  GRUSON, Xavier ,  BODIN, Marc ,  BONTE, Didier

IPC分类号： F01N3/025 ,  F01N7/00 ,  F01N9/00 ,  F01N3/027

CPC分类号： F01N3/035 ,  F01N3/0253 ,  F01N3/027 ,  F01N9/002 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2250/02 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2430/085 ,  F01N2610/03 ,  F02D41/1446 ,  F02D2041/026 ,  F02D2200/0802 ,  Y02T10/47

公开(公告)号：EP2084376A1

公开(公告)日：2009-08-05

申请号：EP07866511.4

申请日：2007-10-29

申请人： Peugeot Citroën Automobiles SA

发明人： TRONEL, Frédéric

IPC分类号： F01N3/023 ,  F01N3/035 ,  F01N9/00 ,  F01N3/20 ,  F02D41/02 ,  F02D41/40 ,  F01N7/02

CPC分类号： F01N3/0231 ,  F01N3/035 ,  F01N3/2033 ,  F01N9/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N2250/06 ,  F01N2430/08 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1446 ,  F02D41/405 ,  Y02A50/2322 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/47

摘要： Exhaust system for an internal combustion engine (1) of a motor vehicle which is equipped with a first oxidation catalytic converter or precatalytic converter (4) positioned near the outlet of gas from the engine, and with a particulate filter (9) associated with a second oxidation catalytic converter (8) these being positioned downstream of the precatalytic converter. It comprises first means for generating an increase in the temperature of the gases leaving the engine (1), second means for generating an exothermal reaction in the precatalytic converter (4) and third means (5) for generating an exothermal reaction in the catalytic converter (8) so as to split the burden of generating the increase in exhaust gas temperature required for regenerating the particulate filter (9) between the engine, the precatalytic converter and the catalytic converter.

公开(公告)号：EP2065577A1

公开(公告)日：2009-06-03

申请号：EP07807310.3

申请日：2007-09-14

申请人： Hino Motors, Ltd.

发明人： HOSOYA, Mitsuru ,  KAWADA, Yoshihiro

IPC分类号： F01N3/08 ,  B01D53/56 ,  B01D53/74 ,  B01D53/86 ,  B01D53/94 ,  F01N3/02 ,  F01N3/24 ,  F01N3/28 ,  F02D23/02 ,  F02D41/04 ,  F02D41/38 ,  F02D45/00

CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2257/406 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2892 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2610/02 ,  F02B29/0425 ,  F02B37/00 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/1446 ,  F02D41/405 ,  Y02T10/24 ,  Y02T10/47

摘要： There is provided an exhaust gas purification apparatus for an engine capable of effectively removing NOx in exhaust gas even when the temperature of exhaust gas is relatively low. The exhaust gas purification apparatus includes a selective reduction catalyst 21 provided in an exhaust pipe 16, a liquid injection nozzle 23 provided on the upstream side of the selective reduction catalyst 21, a liquid injecting means 30 capable of injecting a urea-based liquid 32 via the liquid injection nozzle, a controller 44, and a mixer 26. The apparatus further includes an ammonia purification catalyst 54 provided on the downstream side of the selective reduction catalyst 21, a diesel particulate filter 51 provided on the upstream side of the nozzle 23, an oxidation catalyst 53 provided on the upstream side of the diesel particulate filter 51, and a temperature sensor 43 for detecting the temperature of the selective reduction catalyst 21. A fuel injection device is configured so as to be capable of injecting fuel into a cylinder after the top dead center of piston, and when the temperature sensor detects that the selective reduction catalyst 21 has a temperature not higher than a predetermined temperature, the controller controls the fuel injection device so that fuel is injected into the cylinder after the top dead center of piston.

摘要翻译： 本发明提供一种即使排气温度较低也能够有效地除去排气中的NOx的发动机的排气净化装置。 该排气净化装置具备：设置在排气管16内的选择还原型催化剂21;设置在选择还原型催化剂21的上游侧的液体喷射喷嘴23;能够经由尿素系液体32喷射尿素系液体32的液体喷射机构30 液体喷射喷嘴，控制器44和混合器26.装置还包括设置在选择性还原催化剂21的下游侧的氨净化催化剂54，设置在喷嘴23的上游侧的柴油颗粒过滤器51， 设置在柴油机微粒过滤器51的上游侧的氧化催化剂53以及用于检测选择还原型催化剂21的温度的温度传感器43.燃料喷射装置构成为能够将燃料喷射到汽缸 活塞的上止点，当温度传感器检测到选择还原型催化剂21的温度不高时 在预定的温度下，控制器控制燃料喷射装置，使得燃料在活塞的上止点之后被喷射到气缸中。

公开(公告)号：EP2032812A1

公开(公告)日：2009-03-11

申请号：EP06747896.6

申请日：2006-06-13

申请人： Volvo Lastvagnar AB

发明人： HINZ, Andreas ,  JANSSON, Jonas ,  BERNLER, Hans ,  GOBERT, Ulrich

IPC分类号： F01N3/20 ,  F01N3/035

CPC分类号： F01N3/035 ,  F01N3/106 ,  F01N3/208 ,  F01N13/0093 ,  F01N2240/36 ,  F01N2510/06 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2610/146 ,  F01N2900/0411 ,  Y02T10/24

摘要： A selective catalytic reduction system (100) for reducing nitric oxides emission levels from a compression ignition engine (110) comprises a first reductant injector (210) located upstream a first catalyst (200) comprising a selective catalytic reduction coating. A second reductant injector (310) is located downstream the first catalyst; and a second catalyst (300) is placed downstream the second reductant injector and comprises a selective catalytic reduction coating.

公开(公告)号：EP2028350A2

公开(公告)日：2009-02-25

申请号：EP08162155.9

申请日：2008-08-11

申请人： J. Eberspächer GmbH & Co. KG

发明人： Kaupert, Andreas

IPC分类号： F01N3/20 ,  F01N3/08 ,  F01N3/029

CPC分类号： F01N3/208 ,  F01N3/0256 ,  F01N3/029 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/106 ,  F01N3/2053 ,  F01N3/2066 ,  F01N9/00 ,  F01N9/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/02 ,  F01N2240/30 ,  F01N2240/32 ,  F01N2410/04 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2610/04 ,  F01N2610/14 ,  Y02T10/24 ,  Y02T10/47

摘要： Brennkraftmaschinensystem (1), insbesondere in einem Kraftfahrzeug, umfassend eine mit einem Kraftstoff betreibbare Brennkraftmaschine (2) zum Generieren von Antriebsleistung, eine Abgasleitung (7) zum Abführen von Motorabgas und z.B. einer in der Abgasleitung (7) angeordneten Abgasbehandlungseinrichtung (8), z.B. ein NOX-Speicher zum Speichern von im Motorabgas enthaltenem NOX.
Zur Temperaturerhöhung der Abgasbehandlungseinrichtung (8), z.B. zur Regeneration des NOX-Speichers, sind ein Reformer (11) zum Generieren von Wasserstoffgas enthaltendem Reformatgas aus einem Wasserstoff enthaltenden Brennstoff und einem Sauerstoff enthaltenden Oxidator, eine Reformateinleiteinrichtung (16) zum Einleiten von Reformatgas in die Abgasleitung (7) über eine Einleitstelle (18) stromauf der Abgasbehandlungseinrichtung (8) sowie ein stromab der Einleitstelle (18) und stromauf der Abgasbehandlungseinrichtung (8) in der Abgasleitung (7) angeordnetes Zündorgan (52) vorgesehen.

摘要翻译： 系统（1）具有布置在用于再生最低温度的排气管（7）中的废气处理装置。 提供重整器（11），用于从含有氢的燃料和含有氧的氧化剂产生含氢气的重整气体。 重整物排出装置（16）在处理装置上游的排出区域（18）排出排气管中的重整气体。 点火元件（52），布置在排气管下游的排放区域和处理装置的上游，用于点燃可点燃的重整气体废气混合物。