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1. 发明专利

JP2004301006A Engine exhaust emission control device 有权
公开(公告)号：JP2004301006A
公开(公告)日：2004-10-28
申请号：JP2003094316
申请日：2003-03-31
申请人： Mazda Motor Corp , Ngk Insulators Ltd , マツダ株式会社 , 日本碍子株式会社
发明人： YUNOKI NOBUO , MATSUE KOTA , HAYASHIBARA HIROSHI , MATSUO YUJI , SAKIMOTO MASATSUGU , SAKAMOTO HIROFUMI
IPC分类号： F01N3/02
摘要： PROBLEM TO BE SOLVED: To provide an engine exhaust emission control device capable of highly accurately estimating the amount of exhaust particulate captured in a particulate filter. SOLUTION: In an engine equipped with an oxidation catalyst function and the particulate filter for capturing exhaust particulate, a control unit is structured so as to judge if a state of the particulate filter is in a stage where the exhaust particulates are burned and removed or in a storage where exhaust particulates are captured and stored, and so that the amount of captured particulates may be estimated in a different estimation method corresponding to a judged stage. COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2012132370A Diesel engine with turbo-supercharger 有权
标题翻译：柴油发动机与涡轮增压器
公开(公告)号：JP2012132370A
公开(公告)日：2012-07-12
申请号：JP2010285550
申请日：2010-12-22
申请人： Mazda Motor Corp , マツダ株式会社
发明人： JINNO HIROYUKI , MARUYAMA KEIJI , KOJIMA TOSHIYUKI , YAMAGUCHI YOSHIMASA , TAKAGI KENTARO , MATSUO YUJI
IPC分类号： F02B37/12 , F02B37/00 , F02B37/013 , F02B37/18
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To carry out exhaust gas recirculation (EGR) by effectively utilizing an exhaust turbo type supercharger for intake super charging even in a state that the pressure in an intake passage is made high because of the burning of deposit on an EGR cooler using a high temperature EGR gas.SOLUTION: A turbine 23b of a second supercharger 23 is arranged in the upstream side of a turbine 22b of a first supercharger 22. An exhaust gas takeoff connection of the EGR passage 50 arranged in the EGR cooler 51 exists in the upstream side of the turbine 23b. When a revolution speed is equal to or above a first predetermined revolution speed R1 in which a waste gate valve 36 provided in the first supercharger 22 is opened, the waste gate valve 36 is temporarily closed to increase the internal pressure of the exhaust passage to permit the EGR. When the revolution speed is equal to or above a second predetermined revolution speed R2 (
摘要翻译：要解决的问题：即使在进气通道中的压力由于沉积物的燃烧而变高的状态下，通过有效地利用排气涡轮增压器来进行排气再循环（EGR）一种使用高温EGR气体的EGR冷却器。解决方案：第二增压器23的涡轮23b布置在第一增压器22的涡轮机22b的上游侧。布置在EGR冷却器51中的EGR通道50的排气连接存在于上游侧的涡轮23b。当旋转速度等于或高于设置在第一增压器22中的废气闸阀36打开的第一预定转速R1以上时，废气闸阀36暂时关闭，以增加排气通道的内部压力，以允许 EGR。当转速等于或高于第二预定转速R2（

3. 发明专利

JP2005048663A Engine exhaust emission control device 有权
标题翻译：发动机排气控制装置
公开(公告)号：JP2005048663A
公开(公告)日：2005-02-24
申请号：JP2003281496
申请日：2003-07-29
申请人： Mazda Motor Corp , マツダ株式会社
发明人： YUNOKI NOBUO , MATSUE KOTA , MATSUO YUJI , NAONO MASASHI , HAYASHIBARA HIROSHI
IPC分类号： F02D45/00 , B01D46/42 , B01D53/94 , F01N3/02 , F01N3/18 , F01N3/20 , F01N3/24 , F02D41/04 , F02D41/14
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To regenerate DPF 17 in a short time without fusing the DPF 17 and worsening the rate of fuel consumption. SOLUTION: When the amount of particulates accumulated on the DPF 17 is a preset value or larger, subsidiary injection control for injecting fuel in an expansion stroke after main injection of the fuel is executed to supply unburnt fuel to an oxidation catalyst 16 so that the temperature of exhaust gas flowing into the DPF 17 is increased by the oxidizing reaction to burn and remove the particulates. At first, a subsidiary injection amount is controlled depending on the operated condition of an engine, and after the temperature of the DPF 17 is increased, the subsidiary injection amount is feedback controlled so that the temperature of the DPF 17 gets to a target temperature. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在短时间内再生DPF 17而不熔化DPF 17并且使燃料消耗率变差。解决方案：当DPF 17中积聚的微粒量为预设值或更大时，执行在主燃料喷射之后在膨胀冲程中喷射燃料的辅助喷射控制，以将未燃烧的燃料供应到氧化催化剂16，从而通过氧化反应使流入DPF 17的废气的温度升高，燃烧除去微粒。首先，根据发动机的操作状态来控制辅助喷射量，并且在DPF 17的温度升高之后，辅助喷射量被反馈控制，使得DPF 17的温度达到目标温度。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2006037859A Exhaust emission control device of engine 有权
标题翻译：发动机排气控制装置
公开(公告)号：JP2006037859A
公开(公告)日：2006-02-09
申请号：JP2004219622
申请日：2004-07-28
申请人： Mazda Motor Corp , マツダ株式会社
发明人： MATSUE KOTA , YUNOKI NOBUO , NISHIMURA HIROYUKI , MATSUO YUJI , HAYASHIBARA HIROSHI
IPC分类号： F02D41/38 , B01D46/42 , B01D53/94 , F01N3/02 , F01N3/24 , F02D41/04
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To stably improve the regeneration efficiency of a filter regardless of variation in injection of a fuel injection valve in an exhaust emission control device of an engine for regenerating a filter 65 provided in an exhaust system of an engine by performing after-injection. SOLUTION: A regeneration means 91 for burning fine particles captured by a filter 65 performs after-injection control (regeneration control) when the quantity of fine particles captured amounts become to a predetermined value, and performs extending control for increasing the fuel injection quantity in the after-injection so that a rising rate of exhaust gas temperature flowing into the filter 65 is the predetermined value when the rising rate is smaller than a predetermined value after the start of regeneration control. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了稳定地提高过滤器的再生效率，而不管在用于再生设置在发动机的排气系统中的过滤器65的发动机的排气排放控制装置中的燃料喷射阀的喷射的变化，执行后注射。解决方案：用于燃烧由过滤器65捕获的细颗粒的再生装置91在微粒捕获量达到预定值时执行后喷射控制（再生控制），并执行用于增加燃料喷射的延伸控制在再次控制开始后，当上升速率小于预定值时，流入过滤器65的排气温度的上升率为预定值。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2012122434A Diesel engine 有权
标题翻译：柴油发动机
公开(公告)号：JP2012122434A
公开(公告)日：2012-06-28
申请号：JP2010275485
申请日：2010-12-10
申请人： Mazda Motor Corp , マツダ株式会社
发明人： TAKAGI KENTARO , YAMAGUCHI YOSHIMASA , MARUYAMA KEIJI , JINNO HIROYUKI , KOJIMA TOSHIYUKI , MATSUO YUJI
IPC分类号： F02D41/04 , F01N3/023 , F01N3/025 , F01N3/029 , F02D21/08 , F02D41/06 , F02D41/38 , F02M25/07
摘要： PROBLEM TO BE SOLVED: To satisfy both of the suppression of Raw NOx and the secure of the fresh gas filling quantity in the execution of post fuel injection.SOLUTION: An oxidation catalyst 31 and a DPF (particulate collecting filter) 32 are sequentially arranged from the upstream side to the downstream side in an exhaust passage 30 of an engine 1. In the regeneration of the DPF 32, the post fuel injection to perform the oxidation reaction with the oxidation catalyst 31 at an interval from a main fuel injection is carried out in an expansion process. An EGR cooler 51 is arranged in an EGR passage 50 and an exhaust gas taking-out part is set to an exhaust passage of a specific cylinder C4 to become a part of a cylinder. In an execution region of the post fuel injection, a post fuel injection quantity to the specific cylinder C4 is controlled to be smaller than the post fuel injection quantity to the other cylinders C1-C3.
摘要翻译：要解决的问题：为了在后燃料喷射的执行中同时满足原始NOx的抑制和新鲜气体填充量的确定。解决方案：在发动机1的排气通道30中，从上游侧到下游侧依次布置氧化催化剂31和DPF（微粒收集过滤器）32。在DPF 32的再生中，后燃料在膨胀过程中进行与主燃料喷射的间隔与氧化催化剂31进行氧化反应的注入。 EGR冷却器51设置在EGR通路50中，排气取出部被设定在特定气缸C4的排气通道上，成为气缸的一部分。在后燃料喷射的执行区域中，向特定气缸C4的后燃料喷射量被控制为比其他气缸C1-C3的后燃料喷射量小。版权所有（C）2012，JPO＆INPIT

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