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1. 发明专利

JP2007146722A Exhaust emission control device 审中-公开
标题翻译：排气排放控制装置
公开(公告)号：JP2007146722A
公开(公告)日：2007-06-14
申请号：JP2005340719
申请日：2005-11-25
申请人： Hino Motors Ltd , Hitachi Metals Ltd , Tokyo Roki Co Ltd , 日立金属株式会社 , 日野自動車株式会社 , 東京濾器株式会社
发明人： FUNAHASHI HIROSHI , MATSUNAMI OKITOMO , OZAWA ATSUSHI , SUWABE HIROHISA
IPC分类号： F01N3/02 , B01D53/94 , B01J35/04 , F01N3/08 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device greatly reducing cost by reducing precious metal material carrying quantity per unit volume and avoiding risk causing performance drop due to thermal deterioration by soot combustion heat. SOLUTION: The exhaust emission control device has a plug body 13 plugging an inlet side of each flow path 12 arranged at a position getting into the flow path 12 from an inlet side end surface by a predetermined length. A deep plug type particulate filter 11 carrying oxidation catalyst 11a is installed in a middle of an exhaust pipe 9 in a front section from a plug body 13 arrangement position of the inlet side to the inlet side end surface, a flow through type NOx storage reduction catalyst 16 is provided in a front stage of a particulate filter 11 and an injector 17 adding fuel in exhaust gas 7 on an upstream side of the NOx storage reduction catalyst 16 as reducer is provided as a fuel adding means. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过减少每单位体积的贵金属材料承载量并且避免由于烟灰燃烧热的热劣化而引起的性能下降的风险，从而大大降低成本。解决方案：废气排放控制装置具有插塞体13，其插入从入口侧端面进入流路12的位置预定长度的每个流路12的入口侧。携带氧化催化剂11a的深塞型微粒过滤器11安装在从插入体13的入口侧至入口侧端面的配置位置的前部的排气管9的中央，通过型NOx吸留还原催化剂16设置在微粒过滤器11的前段，以及在作为减速机作为燃料添加机构设置在NOx吸留还原催化剂16的上游侧的排气中添加燃料的喷射器17。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007154782A Maintenance method of particulate filter 有权
标题翻译：颗粒过滤器的维护方法
公开(公告)号：JP2007154782A
公开(公告)日：2007-06-21
申请号：JP2005351831
申请日：2005-12-06
申请人： Hino Motors Ltd , Tokyo Roki Co Ltd , 日野自動車株式会社 , 東京濾器株式会社
发明人： OYA TOSHIKI , MURAMATSU TOSHIKATSU , KUNISHIMA HIDEFUMI , OZAWA ATSUSHI
IPC分类号： F01N3/02
CPC分类号： F01N3/023 , F01N3/0233 , F01N13/0097 , F01N2450/04 , F01N2450/30
摘要： PROBLEM TO BE SOLVED: To provide a maintenance method of a particulate filter which can surely remove a combustion residue by backwash air, and can prevent an increase in considerable exhaust gas pressure and the deterioration of fuel comsumption during operation, while suppressing the cost of equipment without the use of hot water, etc. SOLUTION: In the maintenance of the particulate filter 4, after a filler 13 to decrease the internal volume of a passage 8 is packed into the passage 8 whose outlet is not sealed by a plug 9, backwash air 12 is blown into the passage 8 whose outlet is not sealed by the plug 9. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过反冲洗空气可靠地除去燃烧残余物的微粒过滤器的维护方法，并且可以防止在操作期间相当大的废气压力的增加和燃料消耗的恶化，同时抑制没有使用热水的设备成本等。解决方案：在微粒过滤器4的维护中，在将通道8的内部容积减小的填料13填充到出口不密封的通道8中之后通过插头9，反冲洗空气12被吹入通道8，通道8的出口未被插头9密封。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2002339728A EXHAUST EMISSION CONTROL DEVICE 失效
公开(公告)号：JP2002339728A
公开(公告)日：2002-11-27
申请号：JP2001146265
申请日：2001-05-16
申请人： HINO MOTORS LTD , TOKYO ROKI KK
发明人： FUNAHASHI HIROSHI , YOSHINO YASUTAKA , TSURUMI FUMIYUKI , ICHIKAWA TAKAYUKI , OZAWA ATSUSHI
IPC分类号： F01N3/02 , B01D39/14 , B01D46/42 , B01D53/94 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To reduce costs by dispensing with a forcible heating means such as electric heater and a burner and to certainly prevent occurrence of clogging in a short time. SOLUTION: In relation to this exhaust emission control device having a particulate filter 4 on the way of an exhaust pipe, an NO2 generating catalyst 7 for improving a function of generating NO2 by selectively reacting NO in exhaust gas 2 with oxygen is carried in a desired range backward from the front end surface of the filter 4. Thus, the exhaust gas 2 contacts with a carried region of the NO2 generating catalyst 7 with a high frequency to change NO in the exhaust gas 2 to NO2 with high reactivity, and the NO2 flows backward and selectively reacts with carbon component in particulates 8 collected by the filter 4. As a result, combustion of the carbon component is assisted to efficiently combust and remove the particulates at a relatively low ignition temperature.

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