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公开(公告)号：US08375703B2
公开(公告)日：2013-02-19
申请号：US12600799
申请日：2008-03-03
CPC分类号： F01N3/24 , B01D53/9431 , B01D53/9477 , B01D2251/2067 , B01D2251/208 , F01N3/2066 , F01N3/2892 , F01N2240/20 , F01N2470/22 , F01N2570/14 , F01N2610/00 , F01N2610/02 , Y02A50/2344 , Y02T10/24
摘要： An exhaust gas purification device is capable of diffusing and introducing a reducing agent into a NOx catalyst arranged in a downstream side exhaust gas passage. A housing of the device includes a main body in which an upstream side exhaust gas passage and the downstream side exhaust gas passage are housed, and a cap attached to a first surface of the main body provided with an outlet side opening of the upstream side exhaust gas passage and an inlet side opening of the downstream side exhaust gas passage. At least one of the first surface of the main body and a second surface in the cap which faces the first surface includes a guide portion, for guiding an exhaust gas flow, and a reducing agent diffusion portion, for facilitating mixing of the reducing agent with the exhaust gas.
摘要翻译： 排气净化装置能够将还原剂扩散并引入配置在下游侧排气通路中的NOx催化剂。 该装置的壳体包括容纳上游侧排气通道和下游侧排气通道的主体，以及安装在主体的第一表面上的盖，该盖设置有上游侧排气口的出口侧开口 气体通道和下游侧废气通道的入口侧开口。 主体的第一表面和面对第一表面的第二表面中的至少一个包括用于引导废气流的引导部分和还原剂扩散部分，用于促进还原剂与 废气。
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公开(公告)号：US20100146950A1
公开(公告)日：2010-06-17
申请号：US12600799
申请日：2008-03-03
CPC分类号： F01N3/24 , B01D53/9431 , B01D53/9477 , B01D2251/2067 , B01D2251/208 , F01N3/2066 , F01N3/2892 , F01N2240/20 , F01N2470/22 , F01N2570/14 , F01N2610/00 , F01N2610/02 , Y02A50/2344 , Y02T10/24
摘要： An exhaust gas purification device is provided that is capable of diffusing and introducing a reducing agent into a NOx catalyst arranged in a downstream side exhaust gas passage. The exhaust gas purification device is compact and has an exhaust gas passage that returns back in the middle thereof.A housing of the exhaust gas purification device includes a main body in which an upstream side exhaust gas passage and the downstream side exhaust gas passage are housed, and a cap which is attached to a first surface of the main body that is provided with an outlet side opening of the upstream side exhaust gas passage and an inlet side opening of the downstream side exhaust gas passage. The return portion is formed by a space surrounded by the main body and the cap. At least one of the first surface of the main body and a second surface in the cap which faces the first surface is provided with a guide portion, for guiding an exhaust gas flow, which is arranged in a direction intersecting with the first surface and the second surface, and a reducing agent diffusion portion, for facilitating mixing of the reducing agent with the exhaust gas, which is arranged in the middle of the flow of the exhaust gas guided by the guide portion.
摘要翻译： 本发明提供一种排气净化装置，其能够将还原剂扩散并引入配置在下游侧排气通路中的NOx催化剂。 废气净化装置是紧凑的并且具有在其中部返回的废气通道。 排气净化装置的壳体包括容纳上游侧排气通道和下游侧排气通路的主体，以及安装在主体的第一表面上的盖，该主体设置有出口 上游侧废气通道的侧面开口和下游侧排气通道的入口侧开口。 返回部分由主体和盖子包围的空间形成。 主体的第一表面和面对第一表面的盖的第二表面中的至少一个设置有引导部分，用于引导排气流，该排气流沿与第一表面相交的方向布置， 第二表面和还原剂扩散部分，用于促进还原剂与排气的混合，该废气布置在由导向部分引导的废气流中间。
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