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    Exhaust gas purifying system for internal combustion engine
    2.
    发明公开
    Exhaust gas purifying system for internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号：EP1519015A2

    公开(公告)日：2005-03-30

    申请号：EP04022333.1

    申请日：2004-09-20

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Nakano, Yasuaki ,  Hirota, Shinya

    IPC分类号： F01N3/08 ,  F01N3/20 ,  F02D41/02

    CPC分类号： F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N13/009 ,  F01N13/0093 ,  F01N2430/06 ,  F01N2610/03

    摘要： In an exhaust gas purifying system including two NOx catalysts (3,4) disposed in series with each other on an exhaust passage (2), oxides occluded in the NOx catalysts (3,4) can be reduced appropriately. When the oxides occluded in an upstream (3) or downstream NOx catalyst (4) are reduced, the surrounding atmosphere of each NOx catalyst is changed between a reducing atmosphere and an oxidative atmosphere. The air-fuel ratio of exhaust gas upstream of the upstream NOx catalyst (3) is made lower when the surrounding atmosphere of the downstream NOx catalyst (4) is changed into a reducing atmosphere than when the surrounding atmosphere of the upstream NOx catalyst (3) is changed into a reducing atmosphere, and the duration of the oxidative atmosphere is made longer when the surrounding atmosphere of the downstream NOx catalyst (4) is changed into an oxidative atmosphere than when the surrounding atmosphere of the upstream NOx catalyst (3) is changed into an oxidative atmosphere.

    摘要翻译： 在排气通路（2）上具备串联配置的两个NOx催化剂（3,4）的排气净化系统中，能够适当地减少NOx催化剂（3,4）中吸留的氧化物。 当吸附在上游（3）或下游NOx催化剂（4）中的氧化物减少时，每种NOx催化剂的周围气氛在还原气氛和氧化气氛之间变化。 当下游侧NO X催化剂（4）的周围气氛变为还原气氛时，与上游侧NO X催化剂（3）的周围气氛变化时相比，上游侧NO X催化剂（3）上游的排气的空燃比更低 ）变为还原性气氛，与下游侧NO X催化剂（4）的周围气氛变为氧化性气氛时相比，上游侧NO X催化剂（3）的周围气氛变为氧化性气氛 变成氧化气氛。

    Exhaust gas purifying system for internal combustion engine
    6.
    发明公开
    Exhaust gas purifying system for internal combustion engine 有权
    Abgasreinigungssystemfüreine Brennkraftmachine

    公开(公告)号：EP1519015A3

    公开(公告)日：2005-05-11

    申请号：EP04022333.1

    申请日：2004-09-20

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Nakano, Yasuaki ,  Hirota, Shinya

    IPC分类号： F01N3/08 ,  F01N3/20 ,  F02D41/02

    CPC分类号： F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N13/009 ,  F01N13/0093 ,  F01N2430/06 ,  F01N2610/03

    摘要： In an exhaust gas purifying system including two NOx catalysts (3,4) disposed in series with each other on an exhaust passage (2), oxides occluded in the NOx catalysts (3,4) can be reduced appropriately. When the oxides occluded in an upstream (3) or downstream NOx catalyst (4) are reduced, the surrounding atmosphere of each NOx catalyst is changed between a reducing atmosphere and an oxidative atmosphere. The air-fuel ratio of exhaust gas upstream of the upstream NOx catalyst (3) is made lower when the surrounding atmosphere of the downstream NOx catalyst (4) is changed into a reducing atmosphere than when the surrounding atmosphere of the upstream NOx catalyst (3) is changed into a reducing atmosphere, and the duration of the oxidative atmosphere is made longer when the surrounding atmosphere of the downstream NOx catalyst (4) is changed into an oxidative atmosphere than when the surrounding atmosphere of the upstream NOx catalyst (3) is changed into an oxidative atmosphere.

    摘要翻译： 在包括在排气通路（2）上彼此串联配置的2个NOx催化剂（3,4）的废气净化系统中，可以适当地减少吸留在NOx催化剂（3,4）中的氧化物。 当上游（3）或下游NOx催化剂（4）中的氧化物被还原时，每个NOx催化剂的周围环境在还原气氛和氧化气氛之间变化。 当下游NOx催化剂（4）的周围环境变成还原气氛时，上游NOx催化剂（3）上游排气的空燃比比上游NOx催化剂（3）的周围环境 ）变成还原气氛，当下游NOx催化剂（4）的周围环境变成氧化气氛时，氧化气氛的持续时间比上游NOx催化剂（3）的周围环境为 变成氧化气氛。

    Exhaust gas purifying method, exhaust gas purifying apparatus, and exhaust gas collecting apparatus of internal combustion engine
    7.
    发明公开
    Exhaust gas purifying method, exhaust gas purifying apparatus, and exhaust gas collecting apparatus of internal combustion engine 有权
    一种用于内燃发动机的排气和排气气体收集系统的净化方法和装置

    公开(公告)号：EP1369558A2

    公开(公告)日：2003-12-10

    申请号：EP03012697.3

    申请日：2003-06-04

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Asanuma, Takamitsu ,  Tanaka, Toshiaki ,  Hirota, Shinya ,  Ueda, Takanori ,  Yamashita, Tetsuya ,  Nakano, Yasuaki

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2013 ,  F01N3/20 ,  F01N2240/26 ,  F02M26/15 ,  F02M26/37 ,  Y02T10/26

    摘要： To restrict the discharging of harmful components immediately after the starting of an internal combustion engine (1), an exhaust gas collecting apparatus (10) of an internal combustion engine comprises: a collection vessel (11) that can hold exhaust gas; an exhaust gas taking-out passage (12) through which exhaust gas is guided from an exhaust gas passage (4) to the collection vessel (11); an exhaust gas induction passage through which the exhaust gas is guided from the collection vessel (11) to the exhaust gas passage (4) at a position upstream from the catalytic converter (7); s switching valve (14) that is switchable between a position where the introduction of the exhaust gas from the exhaust gas passage to the exhaust gas taking-out passage is permitted and a position where the introduction of the exhaust gas is prevented; and an open and close valve that is switchable between a position where the introduction of the exhaust gas through the exhaust gas induction passage is permitted and a position where the introduction of the exhaust gas is prevented. The switching valve is controlled such that at least a part of the exhaust gas discharged from an internal combustion engine is collected into the collection vessel (11) through the exhaust gas taking-out passage (12) during a period from a starting time of the internal combustion engine to satisfaction of a predetermined collection terminating condition.

    Exhaust gas purifying catalyst and method of manufacturing exhaust gas purifying catalyst
    9.
    发明公开
    Exhaust gas purifying catalyst and method of manufacturing exhaust gas purifying catalyst 审中-公开
    Katalysator zur Reinigung von Abgasen und Verfahren zu seiner Herstellung

    公开(公告)号：EP1649924A3

    公开(公告)日：2006-09-13

    申请号：EP05023039.0

    申请日：2005-10-21

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： Nakano, Yasuaki ,  Hirota, Shinya ,  Yoshida, Kohei

    IPC分类号： B01D53/94 ,  B01J37/02

    CPC分类号： B01D53/945 ,  B01D53/949 ,  B01D2255/10 ,  B01D2255/202 ,  B01J23/58 ,  B01J23/63 ,  B01J37/024 ,  B01J37/0242 ,  Y02T10/22

    摘要： An exhaust gas purifying catalyst used for purifying exhaust gas of an internal combustion engine, in which a honeycomb substrate .is coated with a catalyst support having an SOx keeping ability for keeping in its interior SOx contained in the exhaust gas, wherein a cell wall of the honeycomb substrate has a pore, the interior of the pores is filled with the catalyst support so that the pore is coated, a surface of the cell wall is also coated with the catalyst support, and a catalyst support coating ratio that is defined as the ratio of the mass of the catalyst support applied on the cell wall surface to the mass of the catalyst support applied in the pore in the cell wall has a value between 0.25 and 1.25. Thus, there is provided an exhaust gas purifying catalyst that does not suffer from serious deterioration in the exhaust gas purifying capacity even without performing the SOx poisoning recovery control.

    摘要翻译： 一种用于净化内燃机废气的废气净化催化剂，其中蜂窝状基体涂覆有具有用于保持其内部的SO x保持能力的催化剂载体，所述催化剂载体包含在废气中，其中， 蜂窝状基材具有孔，孔内部填充有催化剂载体，使得孔被涂覆，细胞壁的表面也涂覆有催化剂载体，催化剂载体涂层比例定义为 施加在细胞壁表面上的催化剂载体的质量与施加在细胞壁中的孔中的催化剂载体的质量之比为0.25至1.25。 因此，即使没有进行SOx中毒恢复控制，也提供了排气净化催化剂不会严重劣化的排气净化催化剂。