公开(公告)号：US20150290587A1

公开(公告)日：2015-10-15

申请号：US14443179

申请日：2012-11-16

Applicant: Akira MIKAMI ,  Shigeki NAKAYAMA ,  Nobumoto OHASHI ,  Keishi TAKADA ,  Kenji SAKURAI ,  Yoshihisa TUKAMOTO ,  Hiroshi OTSUKI ,  Junichi MATSUO ,  Ichiro YAMAMOTO ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akira Mikami ,  Shigeki Nakayama ,  Nobumoto Ohashi ,  Keishi Takada ,  Kenji Sakurai ,  Yoshihisa Tsukamoto ,  Hiroshi Otsuki ,  Junichi Matsuo ,  Ichiro Yamamoto

IPC: B01D53/94 ,  F01N3/10 ,  F01N3/08 ,  F01N13/00 ,  F01N3/021

CPC classification number: B01D53/9477 ,  B01D53/0415 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9463 ,  B01D53/9468 ,  B01D2251/2062 ,  B01D2255/1021 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/904 ,  B01D2255/911 ,  B01D2257/406 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/012 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0828 ,  F01N3/103 ,  F01N3/106 ,  F01N3/108 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2510/063 ,  F01N2510/0684 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/24

Abstract: An object of the present invention is to appropriately remove, from an exhaust gas, HC, CO, and ammonia flowing out from a filter (SCRF) on which an SCR catalyst is carried. In the present invention, a post-catalyst 8 is provided for an exhaust gas passage of an internal combustion engine on a downstream side from SCRF along with a flow of the exhaust gas. The post-catalyst 8 is constructed to include an adsorption reduction part 81c which adsorbs ammonia and which reduces NOx by using ammonia as a reducing agent, a first oxidation part 81b which oxidizes ammonia, and a second oxidation part 82 which oxidizes HO and CO.

Abstract translation: 本发明的目的是从排出气体中适当地除去从其上载有SCR催化剂的过滤器（SCRF）流出的HC，CO和氨。 在本发明中，为了将内燃机的排气通路与SCRF的下游侧连同废气流一起设置有后催化剂8。 后催化剂8被构造为包括吸附氨并通过使用氨作为还原剂而还原NOx的吸附还原部分81c，氧化氨的第一氧化部分81b和氧化HO和CO的第二氧化部分82。

公开(公告)号：US20150330275A1

公开(公告)日：2015-11-19

申请号：US14655586

申请日：2012-12-26

Applicant: Akira MIKAMI ,  Shigeki NAKAYAMA ,  Keishi TAKADA ,  Kenji SAKURAI ,  Yoshihisa TUKAMOTO ,  Hiroshi OTSUKI ,  Junichi MATSUO ,  Ichiro YAMAMOTO ,  Nobumoto OHASHI

Inventor： Akira MIKAMI ,  Shigeki NAKAYAMA ,  Nobumoto OHASHI ,  Keishi TAKADA ,  Kenji SAKURAI ,  Yoshihisa TSUKAMOTO ,  Hiroshi OTSUKI ,  Junichi MATSUO ,  Ichiro YAMAMOTO

IPC: F01N3/025 ,  F01N3/035 ,  F01N3/20 ,  F01N9/00

CPC classification number: F01N3/0253 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/208 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/03 ,  F02D41/0245 ,  F02D41/029 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: An object of the present invention is to suppress a reduction in a NOx purification ratio accompanying filter regeneration processing in an exhaust gas purification system for an internal combustion engine that includes a filter carrying an SCR catalyst. In the present invention, the temperature of the filter is increased following completion of the filter regeneration processing by increasing the temperature of exhaust gas discharged from the internal combustion engine, and in so doing, HC adhered to the filter is removed.

Abstract translation: 本发明的目的在于，抑制伴随过滤器再生处理的NOx净化率的降低，该排气净化系统包括具有SCR催化剂的过滤器的内燃机。 在本发明中，通过增加从内燃机排出的废气的温度，在过滤器再生处理完成之后，过滤器的温度上升，从而除去附着在过滤器上的HC。