公开(公告)号：EP1793099B1

公开(公告)日：2018-12-05

申请号：EP05767190.1

申请日：2005-07-26

申请人： Isuzu Motors Limited

发明人： GABE, Masashi ,  NAGAOKA, Daiji

IPC分类号： F01N3/08 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28 ,  F02D45/00 ,  F01N9/00 ,  F02B37/00 ,  F02D41/02

CPC分类号： F02D41/0275 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0885 ,  F01N3/206 ,  F01N9/00 ,  F01N2370/02 ,  F01N2560/025 ,  F01N2610/03 ,  F01N2900/0412 ,  F02B37/00 ,  F02D41/0295 ,  F02D2200/0806 ,  Y02T10/144 ,  Y02T10/47

摘要： In exhaust gas purification system (10) including catalyst unit (50) carrying a NOx occlusion-reduction type catalyst, a first-stage rich control having a target air-fuel ratio lower than theoretical air-fuel ratio is conducted through addition of the amount of reducing agent meeting the amount of oxygen emitted in the initial stage of regeneration control. In the first-stage rich control, the completion of oxygen emission is judged on the basis of the oxygen concentration on the downstream side of catalyst unit (50). Upon determination of the completion of oxygen emission, a later-stage rich control close to the theoretical air-fuel ratio with the target air-fuel ratio increased over that of the first-stage rich control is carried out to thereby accomplish regeneration of the catalyst unit (50). As a result, during the regeneration control of the catalyst unit (50), there can be prevented not only any outflow of unpurified NOx occurring in the initial stage of regeneration but also any outflow of virgin reducing agents, such as HC and CO, occurring in the later stage of regeneration.

公开(公告)号：EP2918808B1

公开(公告)日：2018-11-14

申请号：EP13849524.7

申请日：2013-09-24

申请人： Isuzu Motors, Ltd.

发明人： OHARA, Isao ,  UEDA, Yoshihisa ,  HIRAKI, Nobuyuki

IPC分类号： F01N3/24 ,  B01D53/94 ,  F01N3/08 ,  F01N3/28 ,  F01N3/36

CPC分类号： F01N3/2842 ,  B01D53/9431 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/20784 ,  B01D2255/502 ,  F01N3/035 ,  F01N3/08 ,  F01N3/0814 ,  F01N3/106 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/28 ,  F01N3/2878 ,  F01N3/36 ,  F01N13/0097 ,  F01N2470/18 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1453 ,  Y02T10/24

摘要： To provide an exhaust gas purification device for a diesel engine in which a NOx reduction and purification catalyst can be prevented from being broken by penetration of a reductant into a supporting member of the catalyst, while improving performance of the catalyst, a retainer (11) is provided to stand on an inner surface (10) of a connection pipe (8B) at a position between an injection nozzle (7) for aqueous urea and an upstream end surface (5a) of an SCR catalyst (5) and to extend in a circumferential direction, and the retainer (11) is spaced from the upstream end surface (5a) of the SCR catalyst (5).

公开(公告)号：EP2025401B1

公开(公告)日：2018-10-31

申请号：EP07743570.9

申请日：2007-05-17

申请人： Cataler Corporation

发明人： YAMASHITA, Yoshinori ,  AONO, Norihiko ,  MURAI, Toshimi

IPC分类号： B01J29/76 ,  B01D53/94 ,  B01J29/46 ,  B01J29/70 ,  B01J29/78 ,  B01J35/04 ,  F01N3/04 ,  F01N3/08 ,  F01N3/28 ,  F01N3/36

CPC分类号： B01D53/9413 ,  B01D2251/206 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2022 ,  B01D2255/2025 ,  B01D2255/2042 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20776 ,  B01D2255/9022 ,  B01D2255/91 ,  B01J29/46 ,  B01J29/7057 ,  B01J29/7615 ,  B01J29/7815 ,  B01J37/0036 ,  B01J37/0234 ,  B01J37/0244 ,  B01J37/0246 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/03 ,  Y02A50/2325 ,  Y02T10/24

摘要： A NOx reduction catalyst is provided which reduces NOx in processing gas. The NOx reduction catalyst includes a catalyst substrate containing an oxide, a NOx absorption component, and a NOx purification component.

公开(公告)号：EP2261489B1

公开(公告)日：2018-10-10

申请号：EP08872813.4

申请日：2008-11-27

申请人： Isuzu Motors, Ltd.

发明人： YUZA, Hiroyuki ,  NAKADA, Teruo ,  NAGAOKA, Daiji

IPC分类号： F02D41/06 ,  B01D53/86 ,  B01D53/94 ,  F01N3/02 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N3/36 ,  F02D21/08 ,  F02D41/04 ,  F02D43/00

CPC分类号： F02D41/405 ,  B01D53/9422 ,  B01D53/944 ,  B01D53/9472 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2022 ,  B01D2255/2042 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F02D41/0072 ,  F02D41/027 ,  F02D41/1446 ,  F02D41/182 ,  F02D2200/0802 ,  F02M26/05 ,  Y02T10/44

摘要： When the operating state of an internal combustion engine (10) is under low load, the supply of unburned fuel is controlled by using post-injection without using in-exhaust-pipe direct injection. Under medium load, the supply of the unburned fuel is controlled by using both the post-injection and the in-exhaust-pipe direct injection. Under high load, the supply of the unburned fuel is controlled by using the in-exhaust-pipe direct injection without using the post-injection. Thus, in air-fuel ratio rich control performed during regeneration to recover the purification capability of an exhaust gas purification apparatus, both black smoke and white smoke are reduced when the supply of the unburned fuel for supplying the unburned fuel into exhaust gas is controlled.

公开(公告)号：EP3381756A1

公开(公告)日：2018-10-03

申请号：EP18164624.1

申请日：2018-03-28

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： FUKUDA, Koichiro

IPC分类号： B60W20/16 ,  B60W20/13 ,  B60W10/06 ,  B60W10/08 ,  B60K6/445 ,  B60W50/00 ,  F02D41/02 ,  B60W20/11

CPC分类号： B60W20/13 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W20/11 ,  B60W20/16 ,  B60W50/0097 ,  B60W2510/244 ,  B60W2710/0622 ,  B60W2710/0644 ,  B60W2710/0666 ,  B60W2710/083 ,  B60Y2200/92 ,  B60Y2300/47 ,  F01N3/0814 ,  F01N3/0842 ,  F01N2570/14 ,  F01N2900/104 ,  F02D41/0275 ,  F02D41/3005 ,  F02D2200/0806 ,  F02D2250/36 ,  Y02T10/54 ,  Y02T10/6239 ,  Y02T10/6291 ,  Y10S903/903

摘要： An exhaust gas control system for a hybrid vehicle includes a NOx storage-reduction catalyst (4), and an electronic control unit (20). The electronic control unit (20) controls the internal combustion engine (1) so as to reduce an engine speed or stop operation of the internal combustion engine (1) and controls an electric motor (52) so as to compensate for a needed torque of the hybrid vehicle when NOx reduction treatment is executed when a charging amount of a battery when a predetermined NOx reduction execution condition is satisfied is equal to or larger than a predetermined charging amount, and controls the internal combustion engine (1) so as to maintain an operational state of the internal combustion engine (1) at a normal operation when the NOx reduction treatment is executed when the charging amount of the battery when the predetermined NOx reduction execution condition is satisfied is smaller than the predetermined charging amount.

公开(公告)号：EP3267002A4

公开(公告)日：2018-08-01

申请号：EP16758904

申请日：2016-03-01

申请人： ISUZU MOTORS LTD

发明人： NAKADA TERUO ,  SAKAMOTO TAKAYUKI ,  NAGAOKA DAIJI

IPC分类号： F01N3/20 ,  B01D53/94 ,  F01N3/08 ,  F01N3/10 ,  F01N3/28 ,  F01N9/00 ,  F01N11/00

CPC分类号： F01N9/002 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/103 ,  F01N3/20 ,  F01N3/36 ,  F01N9/00 ,  F01N9/005 ,  F01N11/002 ,  F01N11/005 ,  F01N2610/03 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1631

摘要： An internal combustion engine control device including an oxidation catalyst heating value estimation unit 88A, a NOx catalyst heating value estimation unit 88B, an oxidation catalyst temperature estimation unit 88C, a NOx catalyst temperature estimation unit 88D, and switches 801, 802, 803 that switch between an enabled state in which processing performed by the oxidation catalyst heating value estimation unit 88A and the oxidation catalyst temperature estimation unit 88C is executed and a disabled state in which the processing performed by the oxidation catalyst heating value estimation unit 88A and the oxidation catalyst temperature estimation unit 88C is not executed, wherein the control device is configured to be applied to both an exhaust gas purification system including an NOx-occlusion-reduction-type catalyst and an oxidation catalyst and an exhaust gas purification system including the NOx-occlusion-reduction-type catalyst and not including the oxidation catalyst.

公开(公告)号：EP3339587A1

公开(公告)日：2018-06-27

申请号：EP17208959.1

申请日：2017-12-20

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： BISAIJI, Yuki

IPC分类号： F01N3/08 ,  F01N9/00 ,  F01N11/00

CPC分类号： F01N9/00 ,  B01D53/9422 ,  B01D53/9495 ,  B01D2255/908 ,  B01J38/02 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0864 ,  F01N3/2006 ,  F01N3/206 ,  F01N11/00 ,  F01N2550/03 ,  F01N2550/05 ,  F01N2560/025 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2900/0422 ,  F01N2900/0601 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1612 ,  F01N2900/1624 ,  Y02T10/47

摘要： An exhaust gas control apparatus includes a catalytic device (12) in an exhaust passage (11), and the catalytic device carrying an NSR catalyst and an oxygen storage agent. A poisoning recovery control section (17) of the catalytic device (12) executes poisoning recovery control and includes: an oxygen storage amount estimation section (19) that estimates an oxygen storage amount of the catalytic device (12); a determination section (20) that determines timing at which an estimation value of the oxygen storage amount becomes equal to or less than an elimination start determination value after a start of elimination processing in the poisoning recovery control as elimination start timing; and a termination timing decision section (22) that decides termination timing of the poisoning recovery control on the basis of a supply amount of a reducing agent to the catalytic device (12) in a period after the elimination start timing during the elimination processing.

公开(公告)号：EP3337596A1

公开(公告)日：2018-06-27

申请号：EP16738850.3

申请日：2016-06-27

申请人： Johnson Matthey Public Limited Company

发明人： COLLIER, Jillian, Elaine ,  YANG, Sanyuan

IPC分类号： B01D53/94 ,  B01J20/26 ,  B01J23/38 ,  B01J29/70 ,  B01J29/74 ,  F01N3/08 ,  F01N13/00

CPC分类号： B01J20/18 ,  B01D53/0462 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9431 ,  B01D53/944 ,  B01D53/9445 ,  B01D53/9477 ,  B01D53/9481 ,  B01D2253/108 ,  B01D2253/25 ,  B01D2255/10 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/1026 ,  B01D2255/1028 ,  B01D2255/104 ,  B01D2255/106 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/91 ,  B01D2255/9155 ,  B01D2257/404 ,  B01J20/02 ,  B01J29/44 ,  B01J29/62 ,  B01J29/74 ,  B01J29/7415 ,  B01J29/743 ,  B01J29/80 ,  B01J29/83 ,  B01J29/85 ,  B01J29/87 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/04 ,  B01J2229/186 ,  B01J2229/36 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/101 ,  F01N3/2066 ,  F01N13/009 ,  F01N2370/02 ,  F01N2370/04 ,  Y02T10/22 ,  Y02T10/24

摘要： A passive NOx adsorber is disclosed. The passive NOx adsorber is effective to adsorb NOx at or below a low temperature and release the adsorbed NOx at temperatures above the low temperature. The passive NOx adsorber comprises a noble metal and a molecular sieve having an LTL Framework Type. The invention also includes an exhaust system comprising the passive NOx adsorber, and a method for treating exhaust gas from an internal combustion engine utilizing the passive NOx adsorber.

公开(公告)号：EP2028350B1

公开(公告)日：2018-06-20

申请号：EP08162155.9

申请日：2008-08-11

申请人： Eberspächer Climate Control Systems GmbH & Co. KG

发明人： Kaupert, Andreas

IPC分类号： F01N3/20 ,  F01N3/08 ,  F01N3/029 ,  F01N3/025 ,  F01N9/00 ,  F01N3/10 ,  F01N13/00

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 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

公开(公告)号：EP3330521A1

公开(公告)日：2018-06-06

申请号：EP17196967.8

申请日：2017-10-18

申请人： RENAULT s.a.s.

发明人： LEITE, Hernani ,  JALLAGEAS, Etienne

IPC分类号： F02D41/02 ,  F01N3/08 ,  F02D41/40 ,  F02M26/05 ,  F02D33/02 ,  F02D21/08 ,  F02B37/18 ,  F02B37/24 ,  F02D41/10 ,  F02D23/02

CPC分类号： F02D41/0275 ,  F01N3/0814 ,  F01N3/0842 ,  F01N9/00 ,  F01N2430/06 ,  F01N2560/026 ,  F01N2900/1614 ,  F02B37/18 ,  F02B37/24 ,  F02D41/0007 ,  F02D41/0055 ,  F02D41/107 ,  F02D41/405 ,  F02D2041/0022 ,  F02D2200/0806 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2200/501 ,  F02M26/05 ,  Y02T10/44 ,  Y02T10/47

摘要： Une purge d'un piège à oxydes d'azote est déclenchée lors de l'atteinte d'un seuil de masse d'oxydes d'azote (200), pendant le fonctionnement du moteur en mélange pauvre (100). Le réglage du moteur est basculé en mélange riche (300 - 500), en modifiant la position des actionneurs de la chaîne d'air du moteur et en ajoutant une post-injection de carburant. Si la purge est interrompue (900) avec qu'elle soit complète, la post-injection est supprimée, mais le réglage des actionneurs de la chaîne d'air n'est pas modifié. Si, pendant une durée limitée (1500), les conditions de purge sont à nouveau remplies (1300), la post-injection est ajoutée instantanément, de sorte que la purge peut reprendre immédiatement (500).