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1. 发明公开

EP0879344A1 SYSTEM FOR REDUCING EMISSIONS IN CATALYTIC CONVERTER EXHAUST SYSTEMS 失效
标题翻译：系统用于降低尾气催化排放
公开(公告)号：EP0879344A1
公开(公告)日：1998-11-25
申请号：EP96917769.0
申请日：1996-05-31
申请人： AB VOLVO
发明人： TENGBLAD, Roger , JOBSON, Edward , LUNDGREN, Staffan , HANSSON, Maria , WIRMARK, Göran
IPC分类号： B01D53 , F01N3 , F02D41 , F01N7
CPC分类号： B01D53/9445 , B01D53/8696 , B01D53/9495 , B01D2251/202 , F01N3/20 , F01N3/22 , F01N13/0097 , F01N2430/06 , F02D41/025 , Y02T10/22 , Y02T10/26
摘要： The invention relates to a system for reducing emissions in catalytic converter exhaust systems for an internal combustion engine. The invention comprises air-fuel mixture forming means for providing a mixture of air-fuel to the engine, a catalytic converter for purifying an exhaust gas mixture from the engine, and a control unit adapted for controlling the mixture forming means so that an excess of hydrogen is generated in the exhaust gas mixture during the start-up of the engine. According to the invention, the excess of hydrogen is maintained essentially unburnt within the catalytic converter so as to provide a short light-off time for the catalytic converter.

2. 发明公开

EP1244869A1 NOx-REDUCING CATALYST WITH TEMPERATURE REGULATION OF EXHAUST GASES 有权
标题翻译：与废气的温度控制NOx催化剂
公开(公告)号：EP1244869A1
公开(公告)日：2002-10-02
申请号：EP00987943.8
申请日：2000-12-27
申请人： AB VOLVO , Enklaven AB
发明人： JOBSON, Edward , LARSSON, Mikael , HEED, Björn , WITTE, Stefan
IPC分类号： F01N3/28 , F23G7/06
CPC分类号： F01N3/0842 , B01D53/9431 , B01D53/9495 , F01N3/0814 , F01N3/0871 , F01N3/0885 , F01N3/2013 , F01N3/2066 , F01N3/2814 , F01N2240/16 , F01N2570/14 , F02D41/0235 , F02D41/0275 , F02D41/028 , Y02A50/2325 , Y02A50/2344 , Y02T10/22 , Y02T10/24 , Y02T10/26
摘要： Method and arrangement for treatment of a gas-flow in connection with a NOx reducing catalyst (18) that include guiding the gas-flow through an exhaust gas treatment unit (18) having several ducts (21) with exchange of heat between the ducts (21). The ducts (21) are connected to an inlet and an outlet, respectively, at the exhaust gas treatment unit (18) so that the gas-flow occurs during exchange of heat between incoming and outgoing flows. Reduction of NOx compounds in the gas-flow is accomplished by means of the NOx reducing catalyst (18). An adaptation of the temperature of the exhaust gas treatment unit (18) is affected to the prevailing operating condition of the NOx reducing catalyst (18). The method and apparatus enable provision of the required exhaust gas temperature for NOx reduction, while also accommodating the temperature limitations imposed by sulphur absorption and regeneration subsystems.

3. 发明公开

EP1044056A1 POROUS MATERIAL, METHOD AND ARRANGEMENT FOR CATALYTIC CONVERSION OF EXHAUST GASES 失效
标题翻译：多孔性物质，方法和系统废气催化反应
公开(公告)号：EP1044056A1
公开(公告)日：2000-10-18
申请号：EP97954008.5
申请日：1997-12-10
申请人： AB VOLVO
发明人： JOBSON, Edward , MARTENS, Johan, A. , CAUVEL, Anne , JAYAT, François
IPC分类号： B01D53/94 , F01N3/28
CPC分类号： B01D53/945 , B01D53/9418 , B01D2251/208 , B01D2255/1021 , B01D2255/104 , B01D2255/20761 , B01D2255/50 , B01D2255/9205 , B01J29/068 , B01J29/22 , B01J29/67 , B01J29/74 , B01J29/743 , B01J29/80 , B01J37/0246 , F01N3/2066 , F01N3/2803 , F01N3/2807 , F01N13/009 , F01N13/0093 , F01N2610/03 , Y02T10/22 , Y02T10/24
摘要： The invention pertains to a porous material for catalytic conversion of exhaust gases, comprising an oxidation catalyst able to catalyse oxidation of nitrogen monoxide into nitrogen dioxide and to catalyse oxidation of a reducing agent. According to the invention, the oxidation of the reducing agent is prevented since the reducing agent is sterically prevented from coming into contact with the oxidation catalyst. Preferably, the porous material also comprises a carrier with a reduction catalyst having the ability to selectively catalyse reduction of nitrogen dioxide into nitrogen, whereby the reducing agent is at least partially consumed. The invention also relates to a method and an arrangement which utilize the porous material, and an advantageous use of the porous material. The invention may be applied within the field of catalytic conversion of exhaust gases, originating from internal combustion engines, particularly Lean Combustion engines and diesel engines.

4. 发明授权

EP1244869B1 NOx-REDUCING CATALYST WITH TEMPERATURE REGULATION OF EXHAUST GASES 有权
标题翻译：与废气的温度控制NOx催化剂
公开(公告)号：EP1244869B1
公开(公告)日：2010-02-17
申请号：EP00987943.8
申请日：2000-12-27
申请人： AB VOLVO , Heed Consulting AB
发明人： JOBSON, Edward , LARSSON, Mikael , HEED, Björn , WITTE, Stefan
IPC分类号： F01N3/28 , F23G7/06
CPC分类号： F01N3/0842 , B01D53/9431 , B01D53/9495 , F01N3/0814 , F01N3/0871 , F01N3/0885 , F01N3/2013 , F01N3/2066 , F01N3/2814 , F01N2240/16 , F01N2570/14 , F02D41/0235 , F02D41/0275 , F02D41/028 , Y02A50/2325 , Y02A50/2344 , Y02T10/22 , Y02T10/24 , Y02T10/26
摘要： Method and arrangement for treatment of a gas-flow in connection with a NOx reducing catalyst (18) that include guiding the gas-flow through an exhaust gas treatment unit (18) having several ducts (21) with exchange of heat between the ducts (21). The ducts (21) are connected to an inlet and an outlet, respectively, at the exhaust gas treatment unit (18) so that the gas-flow occurs during exchange of heat between incoming and outgoing flows. Reduction of NOx compounds in the gas-flow is accomplished by means of the NOx reducing catalyst (18). An adaptation of the temperature of the exhaust gas treatment unit (18) is affected to the prevailing operating condition of the NOx reducing catalyst (18). The method and apparatus enable provision of the required exhaust gas temperature for NOx reduction, while also accommodating the temperature limitations imposed by sulphur absorption and regeneration subsystems.

5. 发明授权

EP1044056B1 POROUS MATERIAL, METHOD AND ARRANGEMENT FOR CATALYTIC CONVERSION OF EXHAUST GASES 失效
标题翻译：多孔性物质，方法和系统废气催化反应
公开(公告)号：EP1044056B1
公开(公告)日：2004-06-30
申请号：EP97954008.5
申请日：1997-12-10
申请人： Volvo Car Corporation , AB VOLVO
发明人： JOBSON, Edward , MARTENS, Johan, A. , CAUVEL, Anne , JAYAT, François
IPC分类号： B01D53/94 , F01N3/28
CPC分类号： B01D53/945 , B01D53/9418 , B01D2251/208 , B01D2255/1021 , B01D2255/104 , B01D2255/20761 , B01D2255/50 , B01D2255/9205 , B01J29/068 , B01J29/22 , B01J29/67 , B01J29/74 , B01J29/743 , B01J29/80 , B01J37/0246 , F01N3/2066 , F01N3/2803 , F01N3/2807 , F01N13/009 , F01N13/0093 , F01N2610/03 , Y02T10/22 , Y02T10/24

6. 发明公开

EP0910773A1 CATALYTIC COMBUSTION CHAMBER AND METHOD FOR IGNITING AND CONTROLLING THE CATALYTIC COMBUSTION CHAMBER 失效
标题翻译：催化燃烧室和方法点火和调节催化燃烧室
公开(公告)号：EP0910773A1
公开(公告)日：1999-04-28
申请号：EP97930964.0
申请日：1997-07-01
申请人： AB VOLVO
发明人： VESTIN, Anders , LUNDGREN, Staffan , JOBSON, Edward
IPC分类号： B60H1 , F02B51 , F23C6 , F23C13 , F23D14 , F23N1
CPC分类号： B60H1/2221 , B60H1/22 , B60H2001/2287 , F02B51/02 , F23C13/00 , F23C13/02 , F23M2900/13003 , F23N1/02 , F23N2037/12 , F23N2041/14 , Y02T10/126
摘要： The invention relates to a method of igniting and controlling a catalytic combustor (1), wherein the combustor comprises a first catalytic reactor (2) and at least a second catalytic reactor (3) arranged in series with the first catalytic reactor (2), wherein the first catalytic reactor (2) is heated to a temperature which exceeds or is equal to the ignition temperature of the first catalytic reactor (2), whereafter a mixture (8) of fuel and air is introduced to the catalytic reactor (2), whereby catalytic combustion is started in the first catalytic reactor (2). The mass flow through the catalytic combustor (1) is increased after ignition of the first catalytic reactor (2), whereafter combustion of the fuel/air mixture (8) partly takes place in gas phase in an intermediary chamber (14) between the first catalytic reactor (2) and the second catalytic reactor (3). The invention also pertains to a combustor (1) and its use for heating in a vehicle.

7. 发明公开

EP1064454A1 METHOD AND ARRANGEMENT FOR CONTROL OF AIR-FUEL RATIO OF COMBUSTION ENGINE 审中-公开
标题翻译：方法和控制空燃混合物的内燃发动机的设备，
公开(公告)号：EP1064454A1
公开(公告)日：2001-01-03
申请号：EP99910923.4
申请日：1999-03-15
申请人： AB VOLVO
发明人： JOBSON, Edward , SANDBERG, Lars , LUNDGREN, Staffan
IPC分类号： F01N3/20 , F01N9/00
CPC分类号： F01N3/0842 , B01D53/9495 , F01N13/009 , F01N13/0097 , F01N2250/12 , F02D41/0275 , F02D41/10 , F02D2250/41
摘要： The invention relates to a method for control of a combustion engine (1) having means (4, 5, 17) for generation of an air/fuel mixture to each cylinder (3) of the engine (1), an exhaust system (7, 8) which is connected to the engine (1), an exhaust catalyst (10) and a NOx absorbent (11) which are provided in the exhaust system (7, 8), which method comprises: control of a said means (4, 5, 17) in a first operating condition for generation of a comparatively lean exhaust gas mixture to said NOx adsorbent (11) for adsorption of NOx compounds in said exhaust gas mixture, and control of said means (4, 5, 17) in a second operating condition for generation of a comparatively rich exhaust gas mixture to said NOx absorbent (11) for desorption of NOx compounds in said exhaust gas mixture. The invention is characterized in that it comprises: detection of whether at least one condition in the vehicle prevails which corresponds to an initiation of a change-over from said first operating condition to said second operating condition, wherein an adjustment of said air/fuel mixture to the engine (1) is carried out, wherein said generation of a rich exhaust gas mixture is initiated for desorption of NOx compounds in the NOx adsorbent (11) depending on said condition. The invention also relates to a device for accomplishing said method. By means of the invention, an improved regeneration of a NOx adsorbent is provided which provides a reduced fuel consumption, less emissions and an improved comfort as compared with previously known systems.

8. 发明公开

EP0871872A1 ARRANGEMENT FOR ANALYSIS OF EXHAUST GASES 失效
标题翻译：装置用于废气分析
公开(公告)号：EP0871872A1
公开(公告)日：1998-10-21
申请号：EP96903331.0
申请日：1996-02-21
申请人： AB VOLVO , Hjortsberg, Ove , Unosson, Anders
发明人： LUNDGREN, Staffan , JOBSON, Edward , ÄRLIG, Ulf , SALOMONSSON, Per , Hjortsberg, Ove , Unosson, Anders
IPC分类号： G01N27 , F01N7 , F02D41 , F02D45 , G01N33
CPC分类号： G01N33/0031 , F01N13/008 , F02D41/1444 , F02D41/1446 , F02D41/1456 , F02D41/146 , F02D2041/281 , G01N27/417 , G01N33/0032
摘要： The invention relates to an arrangement for the analysis of exhaust gases from a combustion process, by means of at least one sensor unit (1; 28; 30) which is in a position surrounded by said exhaust gases, and which comprises a plurality of sensors (8, 9, 10, 11) for detecting different gas components, whereby the sensor unit (1; 28; 30) comprises at least two gas or temperature sensors (8, 9, 10, 11) arranged on a common substrate (7), and wherein the sensor unit (1; 28; 30) is connected to an analyzer unit (5) for analysis of signals from said sensors (8, 9, 10, 11). The invention is characterized in that the substrate (7) is constituted by an oxygen-ion-conductive ceramic, in that respective sensors (8, 9, 10, 11) present a conductive pattern (17, 18, 21, 22, 23, 24, 25) arranged on said substrate (7), and in that said sensors (8, 9, 10, 11) are constituted by a combination of at least two of the following sensor types: a lambda sensor (8), an NOx-sensor (9), an oxygen sensor (10) and a residual heat sensor (11). By means of the invention an improved analysis of the exhaust gases from a combustion engine is obtained.

9. 发明公开

EP0700518A1 METHOD AND DEVICE FOR DETECTION OF OXIDIZABLE MATERIALS IN A SPACE 失效
标题翻译：检测方法的可氧化物质
公开(公告)号：EP0700518A1
公开(公告)日：1996-03-13
申请号：EP94916469.0
申请日：1994-05-19
申请人： AB VOLVO
发明人： LINDBLAD, Magnus , JOBSON, Edward , LARSSON, Mikael , ERIKSSON, Sören
IPC分类号： G01N27
CPC分类号： G01N27/16
摘要： The invention relates to a method and a device for detection of oxidizable materials in the exhaust gas outlet of a combustion engine, by means of a measuring device comprising at least one measuring bridge with at least two sensors (D, R) which are arranged in said exhaust outlet, the measuring bridge being exposed to an electrical operating voltage and one of the sensors forming an active sensor (D) by burning said oxidizable materials on its surface which is heated by the resistance, and thereby increasing its temperature-dependent resistance, the other sensor (R) serving as a reference by changing the resistance similar to the active sensor depending on similar environmental parameters without increasing its temperature by the presence of combustible materials, whereby oxidizable materials are detected by measuring voltage variations in the measuring bridge. According to the invention, a flow of air can be delivered to the exhaust gas outlet upstream of the position of the active sensor (D).

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