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1. 发明专利

JP2009215966A Exhaust emission control device of engine 审中-公开
标题翻译：发动机排气控制装置
公开(公告)号：JP2009215966A
公开(公告)日：2009-09-24
申请号：JP2008060369
申请日：2008-03-11
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： AKAHA MOTOHARU , MORI KOICHI , IGUCHI TOYOKI , MITSUISHI SHUNICHI
IPC分类号： F01N3/20 , B01D53/86
摘要： PROBLEM TO BE SOLVED: To positively heat exhaust parts adjacent to an electrically-heated catalyst by using the heat of the catalyst. SOLUTION: A second catalyst 6 and the electrically-heated catalyst 5 are closely disposed in series in an exhaust passage 3. The second catalyst 6 and the electrically-heated catalyst 5 are so disposed that the center axes thereof are aligned with each other. The exhaust gas downstream side end surface 8 of the electrically-heated catalyst 5 opposed to the exhaust gas upstream side end surface 9 of the second catalyst is recessed. Consequently, the heat of the electrically-heated catalyst 5 can be efficiently transmitted from the exhaust gas downstream side end surface of the electrically-heated catalyst 5 to the exhaust gas upstream side end surface 9 of the second catalyst 6, and the second catalyst 6 can be prematurely activated by effectively using the heat of the electrically-heated catalyst 5. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过使用催化剂的热来积极地加热邻近电加热催化剂的排气部分。解决方案：第二催化剂6和电加热催化剂5在排气通道3中串联紧密地布置。第二催化剂6和电加热催化剂5被设置成使其中心轴与每个其他。与第二催化剂的废气上游侧端面9相对的电加热催化剂5的废气下游侧端面8凹陷。因此，电加热催化剂5的热能够从电加热催化剂5的排气下游侧端面向第二催化剂6的排气上游侧端面9有效地传递，第二催化剂6 可以通过有效地使用电加热催化剂5的热来过早活化。版权所有：（C）2009，JPO＆INPIT

2. 发明专利

JP2007032375A Exhaust system for internal combustion engine 有权
标题翻译：内燃机排气系统
公开(公告)号：JP2007032375A
公开(公告)日：2007-02-08
申请号：JP2005215205
申请日：2005-07-26
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： RI SENKI , INOUE TAKAO , AKAHA MOTOHARU , MORI KOICHI , NISHIZAWA MASAYOSHI
IPC分类号： F01N3/20
摘要： PROBLEM TO BE SOLVED: To arrange a bypass catalytic converter for controlling exhaust emissions immediately after cold starting on a further upstream side, and to prevent leakage of exhaust emissions passed through a channel selector valve 4.
SOLUTION: The channel selector valve 4 is arranged in a merging part where four upstream side main passages connected per cylinder are collected as a downstream side main passage. As a bypass channel, upstream side bypass passages are branched from each of the upstream side main passages, and the bypass catalytic converter is interposed in the middle of a downstream side bypass passage. When the channel selector valve 4 is closed, a main channel is shut off, and at the same time, the upstream side main passages of respective cylinders are mutually made in a non-communication condition. The channel selector valve 4 has a housing 21 with four valve opening parts 22 opened and valve elements 24, and two valve elements 24 utilize one rotary shaft in common. Mounting angles of arms 25 are set different from each other so that the sealing surface pressure of the valve elements 24 driven by an actuator and positioned far from one end is not lowered.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：在更上游侧的冷启动之后立即布置用于控制废气排放的旁路催化转化器，并且防止通过流路切换阀4的废气排放物的泄漏。解决方案：通道选择阀4设置在合流部分中，每个气缸连接的四个上游侧主通道作为下游侧主通道被收集。作为旁路通路，从上游侧主通路分支上游侧旁路通路，在旁路旁路通路的中途配置旁通催化转换器。当通道切换阀4关闭时，主通道被切断，同时，各气缸的上游侧主通路相互制成非连接状态。通道切换阀4具有壳体21，其具有四个阀开口部分22打开，阀元件24和两个阀元件24共同使用一个旋转轴。臂25的安装角度被设定为彼此不同，使得由致动器驱动并远离一端定位的阀元件24的密封表面压力不降低。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2013052330A Exhaust gas cleaning catalyst 有权
标题翻译：排气净化催化剂
公开(公告)号：JP2013052330A
公开(公告)日：2013-03-21
申请号：JP2011190961
申请日：2011-09-01
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： IIO SHINICHI , HANAKI YASUNARI , AKAHA MOTOHARU
IPC分类号： B01J23/46 , B01D53/94 , B01J35/04
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas cleaning catalyst which can exhibit excellent performance of exhaust gas cleaning.SOLUTION: The exhaust gas cleaning catalyst in one embodiment has a porous structure comprising a plurality of pores and has a gas diffusion rate of 0.15-0.45 μm/sec. The exhaust gas cleaning catalyst in another embodiment has a porous structure comprising a plurality of pores, has a gas diffusion rate of 0.15-0.45 μm/sec and has 1-4 of the ratio of the total pore volume of pores each having a pore size of ≤1 μm to that of pores each having a pore size of >1 μm. The exhaust gas cleaning catalyst in further another embodiment has a porous structure comprising a plurality of pores, has a gas diffusion rate of 0.15-0.45 μm/sec and has 1-4 of the ratio of the total pore volume of pores each having a pore size of 0.03-1 μm to that of pores each having a pore size of >1 μm and ≤200 μm.
摘要翻译：要解决的问题：提供一种可以表现出优异的废气清洁性能的废气净化催化剂。解决方案：一个实施方案中的排气净化催化剂具有包含多个孔的多孔结构，并且气体扩散速率为0.15-0.45μm/ sec。在另一个实施方案中，废气净化催化剂具有包含多个孔的多孔结构，气体扩散速率为0.15-0.45μm/ sec，并且具有孔的总孔体积的比率为1-4 的孔径大于1μm的孔。在另一个实施方案中，废气净化催化剂具有包含多个孔的多孔结构，气体扩散速率为0.15-0.45μm/ sec，并且具有孔的总孔体积的比率为1-4 尺寸为孔径>1μm和≤200μm的孔的尺寸为0.03-1μm。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2009191718A Exhaust device for internal combustion engine 有权
标题翻译：用于内燃机的排气装置
公开(公告)号：JP2009191718A
公开(公告)日：2009-08-27
申请号：JP2008032657
申请日：2008-02-14
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： YOSHIOKA DAISUKE , NISHIZAWA MASAYOSHI , AKAHA MOTOHARU
IPC分类号： F01N3/20 , F02D9/10
摘要： PROBLEM TO BE SOLVED: To improve a support structure of a valve element 52 with respect to an arm 55 so as to improve reliability and stability. SOLUTION: The exhaust device for the internal combustion engine is provided with the valve element 52 for opening and closing an upstream side main passage connected to respective cylinders so that exhaust delivered from the respective cylinders flows into a bypass passage having a bypass catalyst converter, and a flow passage switching valve 4 for shutting off communication between the upstream side main passages during closing. In the flow passage switching valve 4, a supporting pin 22 erected from the valve element 52 is supported on an end of the arm 55 extending radially from a rotating shaft 53. The supporting pin 22 is in an almost rod shape, and includes a neck part 24 of which diameter is partially reduced with respect to a general part 23. The arm 55 includes two split bodies 26 and 27 fastening the neck part in an assembly state. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提高阀元件52相对于臂55的支撑结构，以提高可靠性和稳定性。解决方案：用于内燃机的排气装置设置有用于打开和关闭连接到各个气缸的上游侧主通道的阀元件52，使得从各个气缸输送的排气流入具有旁路催化剂的旁路通路转换器，以及用于在关闭期间切断上游侧主通道之间的连通的流路切换阀4。在流路切换阀4中，从阀元件52竖立的支撑销22支撑在从旋转轴53径向延伸的臂55的端部上。支撑销22处于大致杆形状，并且包括颈部直径部分24相对于一般部分23部分地减少。臂55包括在组装状态下紧固颈部的两个分开体26和27。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2009215971A Exhaust system of internal combustion engine 有权
标题翻译：内燃机排气系统
公开(公告)号：JP2009215971A
公开(公告)日：2009-09-24
申请号：JP2008060375
申请日：2008-03-11
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： AKAHA MOTOHARU
IPC分类号： F01N3/20 , B01D53/86 , F01N3/00 , F01N3/24 , F01N13/00 , F01N13/08 , F01N99/00
摘要： PROBLEM TO BE SOLVED: To prevent condensed water adhering to the surfaces of a valve element 36, an arm 44, and a rotating shaft 43 from flowing out to the valve element downstream side of a valve port 32 when the valve element 36 is opened. SOLUTION: The valve port 32 through which the exhaust gas flows from the vertical upper side to the vertical lower side is formed in the valve housing 31 of a flow passage selector valve. The valve element 36 sitting on the seal surface 35 of the valve port 32 when closed is formed at the end of the arm 44 radially extending from the rotating shaft 43 rotatably supported on the valve housing 31. A valve storage part 50 for storing the valve element 36 in an open position, the arm 44, and the rotating shaft 43 is recessed in the port side wall part 38 of the valve housing 31 so as to retreat from the flow passage 33A of the valve port 32. A condensed water storage part 51 is recessed in the valve housing under the valve storage part 50. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了防止当阀体36，臂44和旋转轴43的表面附着的冷凝水流出到阀口32的阀元件下游侧时，阀元件36 开了解决方案：在流路切换阀的阀壳体31中形成有从上侧向垂直下侧排出废气的阀口32。当阀体32关闭时，阀元件36形成在阀门端口32的密封表面35上，该臂元件36从可旋转地支撑在阀壳体31上的旋转轴43径向延伸的臂部44的端部。一个用于储存阀门的阀门存储部件元件36处于打开位置，臂44和旋转轴43在阀壳体31的端口侧壁部分38中凹进，从阀口32的流动通道33A退回。冷凝水储存部分 51嵌入在阀存储部分50下方的阀壳体中。版权所有：（C）2009，JPO＆INPIT

6. 发明专利

JP2008196333A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2008196333A
公开(公告)日：2008-08-28
申请号：JP2007030211
申请日：2007-02-09
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： KONISHI YASUHIRO , INOUE TAKAO , AKAHA MOTOHARU , NISHIZAWA MASAYOSHI
IPC分类号： F01N3/20 , B01D53/86 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine preventing discharge of unpurified exhaust gas to outside. SOLUTION: This exhaust emission control device for the internal combustion engine comprises: upstream, midstream and downstream side main exhaust passages 2, 3, 7 having a main catalytic converter 8; bypass exhaust passages 11, 14 for connecting the upstream side main exhaust passages 2 with a connection part of the midstream and downstream side main exhaust passages 3, 7; a bypass catalytic converter 18 provided on the bypass exhaust passage; first passage opening/closing means 4 for flowing exhaust gas on the bypass exhaust passages; and a second passage opening/closing means 12 provided on the midstream side main exhaust passage 3 in the vicinity of the connection part of the midstream and downstream side main exhaust passages 3, 7. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于防止未净化废气排放到外部的内燃机的废气排放控制装置。解决方案：用于内燃机的废气排放控制装置包括：具有主催化转化器8的上游，中游和下游侧主排气通道2,3,7; 旁通排气通道11,14，用于将上游侧主排气通道2与中游和下游侧主排气通道3,7的连接部分连接; 设置在旁通排气通路上的旁通催化转换器18; 用于使废气在旁通排气通道上流动的第一通道打开/关闭装置4; 以及设置在中游侧主排气通路3的中游侧主排气通路3,7的连接部附近的中游侧主排气通路3上的第二通道开闭机构12。（C）2008，JPO＆INPIT

7. 发明专利

JP2007046556A Exhaust system for internal combustion engine 有权
标题翻译：内燃机排气系统
公开(公告)号：JP2007046556A
公开(公告)日：2007-02-22
申请号：JP2005232738
申请日：2005-08-11
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： AKAHA MOTOHARU , RI SENKI , NISHIZAWA MASAYOSHI , INOUE TAKAO
IPC分类号： F01N3/20 , B01D53/94 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To arrange a bypass catalyst converter for performing exhaust emission control immediately after start in a cold condition on the upstream side more and miniaturize a flow passage switch-over valve 4. SOLUTION: The flow passage switch-over valve 4 is arranged in a join part where four upstream side main passages connected per cylinder are collected as downstream side main passages. Upstream side bypass passages are branched from each of the upstream side main passages as bypass flow passages, and the bypass catalyst converter is provided in a halfway section of a downstream side bypass passage. When the flow passage switch-over valve 4 is closed, the main flow passages are shut off, and the upstream side main passages of each cylinder are put in a mutually non-communicating condition. The flow passage switch-over valve 4 has a housing 21 opening four valve opening parts 22 and valve elements 24, and a pair of valve elements 24 have a rotary shaft 23 in common. The housing 21 is divided into two members 21A, 21B per rotary shaft 23 in advance and is integrated after welding an upstream side exhaust pipe 32. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了在上游侧的冷态下立即进行排气排放控制，进行排气排放控制，并使流路切换阀4小型化。解决方案：流路转换阀4设置在连接部分中，每个气缸连接的四个上游侧主通道作为下游侧主通道被收集。上游侧旁路通路作为旁通流路从上游侧主通路分支，旁路催化剂转换器设置在下游侧旁路通路的中途。当流路切换阀4关闭时，主流路切断，各气缸的上游侧主通路处于相互不通的状态。流路切换阀4具有开放四个阀开口部22和阀元件24的壳体21，一对阀元件24具有共同的旋转轴23。预先将壳体21分割为每个旋转轴23的两个部件21A，21B，并且在焊接上游侧排气管32之后将其集成。（C）2007，JPO＆INPIT

8. 发明专利

JP2007032414A Exhaust device for internal combustion engine 有权
标题翻译：用于内燃机的排气装置
公开(公告)号：JP2007032414A
公开(公告)日：2007-02-08
申请号：JP2005216620
申请日：2005-07-27
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： AKAHA MOTOHARU , INOUE TAKAO , RI SENKI , NISHIZAWA MASAYOSHI
IPC分类号： F01N3/20 , B01D53/94 , F01N13/08 , F01N13/10
摘要： PROBLEM TO BE SOLVED: To arrange a bypass catalyst converter performing exhaust emission control just after cold starting on the upstream side; and to prevent leakage of the exhaust gas through a flow passage switching valve 4. SOLUTION: The flow passage switching valve 4 is arranged in a merging part wherein four upstream side main passages connected to each of cylinders are gathered as downstream side main passages. As a bypass flow passage, an upstream side bypass passage diverges from each of the respective upstream side main passages, and the bypass catalyst converter intervenes in a halfway of a downstream side bypass passage. When the flow passage switching valve 4 is closed, the main flow passage is shut off, and simultaneously, the upstream side main passages of the respective cylinders are in the non-communication state. The flow passage switching valve 4 is provided with a valve base 21 having four opened valve openings 25 and a valve element 26, and a metal pipe 22 for the upstream side main passage is welded to a partition wall 35 of the valve base 21 after processing of a seal surface 25a and assembling of the valve element 26. The welded part is separated from the seal surface 25a, and thereby sealing performance is not lowered by distortion. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：在上游侧的冷启动刚刚进行排气排放控制的旁路催化转化器之后，并且防止废气通过流路切换阀4而泄漏。解决方案：流路切换阀4配置在与各缸连接的四个上游侧主通路作为下游侧主体聚集的合流部通道。作为旁通流路，上游侧旁路通路从各上游侧主通路各分支，旁通催化剂转换器插入下游侧旁路通路的中途。当流路切换阀4关闭时，主流路被切断，同时，各气缸的上游侧主通路处于非连通状态。流路切换阀4设置有具有四个打开的阀开口25和阀元件26的阀座21，并且用于上游侧主通道的金属管22在处理之后焊接到阀座21的分隔壁35 的密封面25a和阀体26的组装。焊接部与密封面25a分离，由此通过变形不会降低密封性能。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2010065631A Catalyst poisoning detoxification control device for vehicle internal combustion engine 审中-公开
标题翻译：用于车辆内燃机的催化消毒脱毒控制装置
公开(公告)号：JP2010065631A
公开(公告)日：2010-03-25
申请号：JP2008234111
申请日：2008-09-12
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA SATOSHI , AKAHA MOTOHARU , YASUDA HAJIME , MITSUISHI SHUNICHI
IPC分类号： F01N3/20 , B01D53/86 , B01D53/94 , F01N3/18
CPC分类号： Y02A50/2322
摘要： PROBLEM TO BE SOLVED: To correctly grasp the poisoning amount of a bypass catalytic converter 8, and to prevent heat deterioration of the bypass catalytic converter 8 and deterioration in operation performance, caused by excessive poisoning detoxification control, by preventing the excessive poisoning detoxification control. SOLUTION: The upstream side of a main passage 3 with a main catalytic converter 4 interposed therein is closed by a bypass valve 5, thereby allowing exhaust gas to flow into a bypass passage 7 with the bypass catalytic converter 8 interposed therein. When the main passage 3 is closed by the bypass valve 5, the poisoning amount of the bypass catalytic converter 8 is added and reduced based on catalyst temperature, and when the poisoning amount reaches a predetermined poisoning detoxification determination amount and a predetermined operating condition is satisfied, the poisoning detoxification control is performed. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了正确地掌握旁路催化转化器8的中毒量，并且通过防止过度中毒来防止旁路催化转化器8的热劣化和由过度的中毒解毒控制引起的操作性能的劣化解毒控制解决方案：主催化转化器4插入主通道3的上游侧由旁通阀5封闭，从而允许废气流入旁通通道7，旁路催化转化器8插入其中。当主通道3被旁通阀5关闭时，旁路催化转化器8的中毒量基于催化剂温度加入并减少，并且当中毒量达到预定的中毒解毒确定量并满足预定的操作条件时进行中毒解毒控制。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009209878A Exhaust system for internal combustion engine 有权
标题翻译：内燃机排气系统
公开(公告)号：JP2009209878A
公开(公告)日：2009-09-17
申请号：JP2008056220
申请日：2008-03-06
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： AKAHA MOTOHARU , MITSUISHI SHUNICHI
IPC分类号： F01N3/20 , B01D53/94 , F01N13/08
摘要： PROBLEM TO BE SOLVED: To improve a valve housing of a flow passage switching valve in which a bypass catalytic converter that purifies exhaust immediately after cold starting can be arranged on further upstream side. SOLUTION: The flow passage switching valve 4 is arranged at a gathering section where four upstream side main passages connected to respective cylinders gather as a downstream side main passage. A bypass passage diverges from each of the upstream side main passages and bypass catalytic converters are installed in midway. When the flow passage switching valve 4 is closed, the main flow passage is blocked and the upstream side main passage of each cylinder is disconnected from each other. The flow passage switching valve 4 is provided with the valve housing 21 and a valve body 26, and four valve ports 22 that gather with each other are integrally formed on the valve housing 21 by casting. A center hole 37 that extends in the port longitudinal direction of the valve ports 22 is formed on a center thick section 36 surrounded by four valve ports 22 in a way that it intersects a seal surface 25 in order to equalize the thickness D of the periphery of each valve port 22 in the circumferential direction. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了改善流路切换阀的阀壳体，其中可以在进一步的上游侧布置有将冷启动后立即净化排气的旁通催化转化器。解决方案：流路切换阀4配置在与各个气缸连接的四个上游侧主通路作为下游侧主通路聚集的集聚部。旁路通路从每个上游侧主通道分流，旁路催化转化器安装在中途。当流路切换阀4关闭时，主流路被阻塞，并且每个气缸的上游侧主通路彼此断开。流路切换阀4设置有阀壳体21和阀体26，并且彼此聚集的四个阀口22通过铸造一体地形成在阀壳体21上。在阀口22的端口长度方向上延伸的中心孔37形成在由四个阀口22围绕的中心厚部36上，以与密封面25相交的方式形成，以使外周的厚度D均匀化每个阀口22沿圆周方向。版权所有（C）2009，JPO＆INPIT

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