-
1.发明公开Device for reactivating catalyst of engine 有权Vorrichtung zur Reaktivierung des Katalysators einer Brennkraftmaschine
公开(公告)号：EP0896136A2
公开(公告)日：1999-02-10
申请号：EP98114651.7
申请日：1998-08-04
发明人： Hirota, Shinya , Tanaka, Toshiaka
CPC分类号： F02D41/405 , B01D53/9495 , F01N3/0835 , F01N3/0871 , F01N3/0878 , F01N3/0885 , F01N3/20 , F01N3/2053 , F01N2250/12 , F01N2430/06 , F01N2570/04 , F01N2570/14 , F01N2610/03 , F02B1/04 , F02B3/06 , F02D41/027 , F02D41/1441 , F02D41/1446 , F02D41/1494 , F02D41/187 , F02D41/3818 , F02D41/402 , F02D2041/389 , Y02A50/2344 , Y02T10/20 , Y02T10/44
摘要： A catalyst (18) is housed in a casing (11) arranged in the exhaust passage (16) of the engine (1). A pressure reducing valve (23), which is usually closed, is arranged in a bypass passage (21) branching off from the exhaust passage (17) upstream of the casing. The fuel injector (8) usually injects fuel at the combustion stroke or the exhaust stroke to feed hydrocarbon, and NO X is reduced in the catalyst by the hydrocarbon. When the catalyst is judged to be poisoned, the timing of the secondary fuel injection is advanced with respect to the timing of the usual secondary fuel injection, and the pressure reducing valve is opened to reduce the pressure in the casing. In this way, the catalyst is reactivated.
摘要翻译： 催化剂（18）容纳在布置在发动机（1）的排气通道（16）中的壳体（11）中。 通常封闭的减压阀（23）布置在从壳体上游的排气通道（17）分支的旁通通道（21）中。 燃料喷射器（8）通常在燃烧冲程或排气冲程中喷射燃料以进料烃，并且通过烃在催化剂中还原NO x。 当催化剂被判定为中毒时，二次燃料喷射的时间相对于通常的二次燃料喷射的时间而进行，并且减压阀打开以减小壳体中的压力。 以这种方式，催化剂被重新激活。
-
公开(公告)号：EP0716876A1
公开(公告)日：1996-06-19
申请号：EP95119880.3
申请日：1995-12-15
IPC分类号： B01D53/94
CPC分类号： B01D53/9481 , B01D53/945 , B01J23/58 , B01J23/63 , B01J37/0244 , F01N3/0842 , Y02T10/22
摘要： A catalyst for purifying exhaust gases, which is composed of a catalyst substrate, a first porous support layer supporting barium as a NOx-occluding material and palladium, which is formed on the catalyst support, and a second porous support layer supporting platinum, which is formed on the first porous support layer. Platinum efficiently oxidizes nitrogen monoxide to be converted into nitrogen dioxide. Palladium is supported in a highly dispersed state even after endurance to act as inlet and outlet of barium for nitrogen dioxide or the like, whereby absorption and emission of nitrogen oxides can be performed smoothly, and accordingly, the purification performance for nitrogen oxides is improved.
摘要翻译： 用于净化废气的催化剂，其由催化剂基质，形成在催化剂载体上的钡作为NOx吸留材料的第一多孔载体层和钯构成，以及第二多孔载体， 形成在第一多孔支撑层上。 铂有效地氧化一氧化氮以转化为二氧化氮。 即使在耐久性之后钯也可以作为二氧化氮等的入口和出口而被支持在高分散状态，从而可以顺利地进行氮氧化物的吸收和排出，从而提高氮氧化物的净化性能。
-
公开(公告)号：EP0896136B1
公开(公告)日：2005-03-16
申请号：EP98114651.7
申请日：1998-08-04
发明人： Hirota, Shinya , Tanaka, Toshiaka
CPC分类号： F02D41/405 , B01D53/9495 , F01N3/0835 , F01N3/0871 , F01N3/0878 , F01N3/0885 , F01N3/20 , F01N3/2053 , F01N2250/12 , F01N2430/06 , F01N2570/04 , F01N2570/14 , F01N2610/03 , F02B1/04 , F02B3/06 , F02D41/027 , F02D41/1441 , F02D41/1446 , F02D41/1494 , F02D41/187 , F02D41/3818 , F02D41/402 , F02D2041/389 , Y02A50/2344 , Y02T10/20 , Y02T10/44
摘要： A catalyst (18) is housed in a casing (11) arranged in the exhaust passage (16) of the engine (1). A pressure reducing valve (23), which is usually closed, is arranged in a bypass passage (21) branching off from the exhaust passage (17) upstream of the casing. The fuel injector (8) usually injects fuel at the combustion stroke or the exhaust stroke to feed hydrocarbon, and NOX is reduced in the catalyst by the hydrocarbon. When the catalyst is judged to be poisoned, the timing of the secondary fuel injection is advanced with respect to the timing of the usual secondary fuel injection, and the pressure reducing valve is opened to reduce the pressure in the casing. In this way, the catalyst is reactivated.
-
公开(公告)号：EP0896136A3
公开(公告)日：2002-04-03
申请号：EP98114651.7
申请日：1998-08-04
发明人： Hirota, Shinya , Tanaka, Toshiaka
CPC分类号： F02D41/405 , B01D53/9495 , F01N3/0835 , F01N3/0871 , F01N3/0878 , F01N3/0885 , F01N3/20 , F01N3/2053 , F01N2250/12 , F01N2430/06 , F01N2570/04 , F01N2570/14 , F01N2610/03 , F02B1/04 , F02B3/06 , F02D41/027 , F02D41/1441 , F02D41/1446 , F02D41/1494 , F02D41/187 , F02D41/3818 , F02D41/402 , F02D2041/389 , Y02A50/2344 , Y02T10/20 , Y02T10/44
摘要： A catalyst (18) is housed in a casing (11) arranged in the exhaust passage (16) of the engine (1). A pressure reducing valve (23), which is usually closed, is arranged in a bypass passage (21) branching off from the exhaust passage (17) upstream of the casing. The fuel injector (8) usually injects fuel at the combustion stroke or the exhaust stroke to feed hydrocarbon, and NO X is reduced in the catalyst by the hydrocarbon. When the catalyst is judged to be poisoned, the timing of the secondary fuel injection is advanced with respect to the timing of the usual secondary fuel injection, and the pressure reducing valve is opened to reduce the pressure in the casing. In this way, the catalyst is reactivated.
-
公开(公告)号：EP0716876B1
公开(公告)日：2000-09-27
申请号：EP95119880.3
申请日：1995-12-15
IPC分类号： B01D53/94
CPC分类号： B01D53/9481 , B01D53/945 , B01J23/58 , B01J23/63 , B01J37/0244 , F01N3/0842 , Y02T10/22
-
-
-
-
搜索结果
5 条记录 (耗时 0.009 秒)
