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公开(公告)号：JP2004225613A
公开(公告)日：2004-08-12
申请号：JP2003014484
申请日：2003-01-23
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： HAYASHI KOTARO , MATSUSHITA SOICHI , OKI HISASHI , YAMAGUCHI MASAAKI , SHIBATA DAISUKE
CPC classification number: Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine for surely purifying exhaust gas by accurately controlling the air-fuel ratio of the exhaust gas flowing in an NOx catalyst when controlling the air-fuel ratio of the exhaust gas flowing in the NOx catalyst by making a feedback process in the internal combustion engine having the NOx catalyst for purifying the exhaust gas by storing and reducing NOx included in the exhaust gas. SOLUTION: This exhaust emission control device of the internal combustion engine has the NOx catalyst for purifying the exhaust gas by storing and reducing the NOx included in the exhaust gas, and corrects a detecting value of the air-fuel ratio of the downstream exhaust gas of the NOx catalyst to a rich side value (S104) or corrects the air-fuel ratio being an objective value in the feedback control to a lean side value as an SOx quantity stored in the NOx catalyst increases when controlling the air-fuel ratio of the exhaust gas flowing in the NOx catalyst on the basis of the air-fuel ratio of the downstream exhaust gas of the NOx catalyst by making the feedback process (S105). COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JP2003343245A
公开(公告)日：2003-12-03
申请号：JP2002155366
申请日：2002-05-29
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： HAYASHI KOTARO , MATSUSHITA SOICHI , OKI HISASHI , SHIBATA DAISUKE
IPC: F02B37/00 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/22 , F01N3/24 , F01N3/28 , F02B37/24 , F02D21/08 , F02D23/00 , F02D43/00 , F02M25/07
CPC classification number: F02B37/24 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/105 , F01N3/106 , F01N3/30 , F01N13/009 , F01N13/0097 , F01N2250/02 , F01N2510/06 , F01N2560/06 , F01N2560/08 , F01N2570/04 , F01N2610/03 , F02M26/05 , F02M26/10 , F02M26/15 , F02M26/38 , Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To provide a technology wherein a reducing agent and hydrogen sulfide flown on feeding the reducing agent to NOx catalyst are removed in an exhaust purifying device of an internal combustion engine.
SOLUTION: The exhaust gas purifying device is provided with: a NOx catalyst 14; a reducing agent feeding means 28; an oxidation catalyst 18 at the downstream side of the NOx catalyst 14; a supercharger 15; a secondary air intake pipe 24 communicating an exhaust system 13 from NOx catalyst 14 to the oxidation catalyst 18 with an intake system 9 from the supercharger 15 to the internal combustion engine 1; a secondary air quantity regulating valve 25 for regulating the secondary air quantity; a differential pressure detecting means 26 for detecting the differential pressure between the exhaust system 13 from the NOx catalyst 14 to the oxidation catalyst 18 and the intake system 9 from the supercharger 15 to the internal combustion engine 1; and a sulfur poison recovering means for recovering the sulfur poison only when the pressure of the exhaust system 13 is higher than that of the intake system 9.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：提供一种技术，其中在内燃机的排气净化装置中除去在将还原剂供给到NOx催化剂时流动的还原剂和硫化氢。 解决方案：废气净化装置设置有：NOx催化剂14; 还原剂供给装置28; 在NOx催化剂14的下游侧的氧化催化剂18; 增压器15; 将排气系统13从NOx催化剂14连通到氧化催化剂18的二次进气管24，其具有从增压器15到内燃机1的进气系统9; 用于调节二次空气量的二次空气量调节阀25; 用于检测从NOx催化剂14到氧化催化剂18的排气系统13与从增压器15到内燃机1的进气系统9之间的压差的差压检测装置26; 以及仅在排气系统13的压力高于进气系统9的压力时才回收硫毒素的硫毒物回收装置。（C）2004，JPO
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公开(公告)号：JP2003336518A
公开(公告)日：2003-11-28
申请号：JP2002144807
申请日：2002-05-20
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： HAYASHI KOTARO , MATSUSHITA SOICHI , OKI HISASHI , SHIBATA DAISUKE
Abstract: PROBLEM TO BE SOLVED: To provide a technology for precisely feeding a necessary quantity of a reducing agent in recovering a NOx poisoned NOx occlusion agent in an emission control device of an internal combustion engine. SOLUTION: The emission control device comprises the NOx occlusion agent 14, a reducing agent feeding means 25, a sulfur poisoning recovery means 25 for recovering the sulfur poisoning of the NOx occlusion agent 14, an oxygen concentration determining means 24 for determining a target oxygen concentration at the time of the sulfur poisoning recovery, an oxygen concentration detecting means 20 for detecting the oxygen concentration in the emission gas, an averaging means 24 for averaging the oxygen concentration detected when the reducing agent is fed, and a reducing agent feeding quantity correcting means 24 for calculating the difference between the oxygen concentration determined by the oxygen concentration determining means 24 and the average oxygen concentration averaged by the averaging means 24, reducing the quantity of the reducing agent when the oxygen concentration determined by the oxygen concentration determining means 24 is larger, and increasing the quantity of the reducing agent when the average oxygen concentration averaged by the averaging means 24 is larger. COPYRIGHT: (C)2004,JPO
Abstract translation: 要解决的问题：提供一种在内燃机的排放控制装置中精确地供给必要量的还原剂以回收NOx中毒的NOx吸留剂的技术。 解决方案：排放控制装置包括NOx吸收剂14，还原剂进料装置25，用于回收NOx吸留剂14的硫中毒的硫中毒回收装置25，用于确定 硫中毒恢复时的目标氧浓度，用于检测排出气体中的氧浓度的氧浓度检测装置20，平均化装置24，用于平均在还原剂供给时检测到的氧浓度;还原剂进料 数量校正装置24，用于计算由氧浓度确定装置24确定的氧浓度与由平均装置24平均的平均氧浓度之间的差值，当由氧浓度确定装置确定的氧浓度时减少还原剂的量 24大，减少量增加 当平均装置24平均的平均氧浓度较大时， 版权所有（C）2004，JPO
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4.发明专利
公开(公告)号：JP2003286878A
公开(公告)日：2003-10-10
申请号：JP2003017401
申请日：2003-01-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： HAYASHI KOTARO , MATSUSHITA SOICHI , OKI HISASHI , KOBAYASHI MASAAKI , SHIBATA DAISUKE
IPC: F02M25/07 , F01N3/02 , F01N3/08 , F01N3/10 , F01N3/18 , F01N3/20 , F01N3/22 , F01N3/24 , F01N3/28 , F02D21/08 , F02D41/04 , F02D41/38 , F02D41/40 , F02D43/00
CPC classification number: Y02T10/144 , Y02T10/26 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide a device and a method for exhaust-emission control of an internal combustion engine provided with a NOx catalyst in an exhaust path in which the NOx catalyst can be regenerated favorably from SOx poisoning irrespective of the operation condition of the internal combustion engine. SOLUTION: An air-fuel ratio of exhaust gas is controlled firstly to a 1st predetermined air-fuel ratio at which the volume of discharged smoke is set at an allowable upper limit. Then, the exhaust ratio is intermittently controlled to a 2nd predetermined air-fuel ratio which is overrich richer than the 1st air- fuel ratio enabling the NOx catalyst to recover from SOx poisoning, and the temperature of the NOx catalyst is controlled in the range of predetermined temperatures in which the catalyst can be recovered from SOx poisoning and the degradation of the NOx catalyst is not accelerated. COPYRIGHT: (C)2004,JPO
Abstract translation: 解决的问题：提供一种在排气路径中设置有NOx催化剂的内燃机的废气排放控制的装置和方法，其中，NOx催化剂可以从SOx中毒有利地再生而不管操作如何 内燃机的状况。 解决方案：排气的空燃比首先被控制为排出烟量设定在容许上限的第一预定空燃比。 然后，排气比被间歇地控制到第二预定空燃比，其比使得NOx催化剂能够从SOx中毒恢复的第一空燃比更丰富，并且将NOx催化剂的温度控制在 催化剂可以从SOx中毒回收的预定温度和NOx催化剂的降解不会加快。 版权所有（C）2004，JPO
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公开(公告)号：JP2003083054A
公开(公告)日：2003-03-19
申请号：JP2001275400
申请日：2001-09-11
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MAGATA HISAFUMI , OKI HISASHI , KOBAYASHI MASAAKI , SHIBATA DAISUKE , ISHIYAMA SHINOBU , NEGAMI AKIHIKO , MATSUSHITA SOICHI
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of holding an exhaust emission control function of NOx catalyst provided in an exhaust system of the internal combustion engine in a stable condition irrespective of operation conditions of the engine.
SOLUTION: A diesel engine system 1 is provided with a filter casing 42 incorporating the NOx catalyst in the exhaust system 40 and a reducing agent addition valve 17 for adding reducing agent to the upstream side of the filter casing 42 properly. An ECU 80 feeds back the history of change amount (fluctuation width) of oxygen concentration reflecting dynamic state of the reducing agent on the upstream side of the filter casing 42 into addition amount of the reducing agent to the exhaust system 40 sequentially to hold the NOx catalyst in the filter casing 42 at a desired temperature until fuel cut control ends.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：提供一种内燃机的废气排放控制装置，其能够在内燃机的排气系统中设置的NOx催化剂的废气排放控制功能处于稳定状态，而与发动机的运转条件无关。 解决方案：柴油发动机系统1在排气系统40中设置有结合有NOx催化剂的过滤器壳体42和用于向过滤器壳体42的上游侧适当添加还原剂的还原剂添加阀17。 ECU80将反映过滤器壳体42的上游侧的还原剂的动态的氧浓度的变化量（变动幅度）的历史顺序反馈到排气系统40的附加量，以保持NOx 催化剂在过滤器壳体42中以期望的温度直到燃料切断控制结束。
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Patent Agency Ranking
公开(公告)号：JP2006274888A
公开(公告)日：2006-10-12
申请号：JP2005093922
申请日：2005-03-29
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MURATA HIROKI , MATSUMOTO ISAO , MURAKAMI GENICHI , NAGAE MASAHIRO , ONO TOMOYUKI , AOYAMA TARO , HASHIMOTO YOSHINOBU , YAMASHITA AKIRA , NISHIOKA HIROMASA , MATSUSHITA SOICHI
CPC classification number: Y02T10/123
Abstract: PROBLEM TO BE SOLVED: To provide a diesel engine lubricated with fuel such as diesel oil, for lubricating an engine lubrication system or the like, early consuming fuel susceptible to mixing of a dirty component such as soot therein, and efficiently cleaning exhaust. SOLUTION: The diesel engine 1 lubricated with fuel such as diesel oil has a fuel adding means (fuel adding valve 25) for adding the fuel to a diesel catalyst 24 disposed to an exhaust system. The fuel added by the fuel adding means 25 functions as additive for NO x reduction or additive of increasing catalyst temperature in the diesel catalyst 24. Since the fuel containing soot or the like supplied to the engine body 7 of the diesel engine 1 lubricated with fuel such as diesel oil can be consumed early, the effect on a component of an injection system such as an injection pump and a fuel injection valve is mitigated. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：为了提供用燃料例如柴油润滑的用于润滑发动机润滑系统等的柴油发动机，易于混合诸如烟灰之类的脏部件的早期消耗燃料，并且有效地清洁排气 。 解决方案：用诸如柴油的燃料润滑的柴油发动机1具有用于将燃料添加到设置在排气系统上的柴油催化剂24的燃料添加装置（燃料添加阀25）。 由燃料添加装置25添加的燃料作为在柴油催化剂24中催化剂温度升高的添加剂作为添加剂。由于含有烟灰等的燃料供给发动机主体7， 可以早日消耗用诸如柴油的燃料润滑的柴油发动机1，可以减轻对诸如喷射泵和燃料喷射阀的喷射系统的部件的影响。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2004068727A
公开(公告)日：2004-03-04
申请号：JP2002230029
申请日：2002-08-07
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： YAMADA TAKAFUMI , MATSUSHITA SOICHI
CPC classification number: F02M63/0036 , F02M47/027 , F02M63/0026 , F02M63/0225
Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection device with a control valve element keeping accurate opening/closing by preventing the entry of foreign matter into a displacement enlarging chamber.
SOLUTION: The fuel injection device comprises an actuator and the displacement enlarging chamber 21 for enlarging the displacement of the actuator. The displacement enlarging chamber is communicated with a fuel passage via fuel resupply passages 16b', 16c' having check valves 22, 23 allowing the flow of fuel only into the displacement enlarging chamber, and the fuel resupply passage has a throttle portion 16c'.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：为了提供具有控制阀元件的燃料喷射装置，其通过防止异物进入位移放大室来保持准确的打开/关闭。 解决方案：燃料喷射装置包括致动器和位移放大室21，用于扩大致动器的位移。 位移扩大室通过具有止回阀22,23的燃料补给通道16b'，16c'与燃料通道连通，允许燃料仅流入位移扩大室，燃料补给通道具有节流部分16c'。 版权所有（C）2004，JPO
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公开(公告)号：JP2007023946A
公开(公告)日：2007-02-01
申请号：JP2005209300
申请日：2005-07-19
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MURATA HIROKI , MATSUSHITA SOICHI , YAMASHITA AKIRA
IPC: F02D41/04 , C10M101/02 , C10N40/25 , F01M3/00 , F01M9/04 , F02B7/02 , F02D41/02 , F02D45/00 , F02M25/08
Abstract: PROBLEM TO BE SOLVED: To provide a diesel engine lubricated by fuel such as gas oil capable of preventing discharge of vapor of gas oil or the like which is formed when fuel such as gas oil is used as lubricating oil to atmosphere.
SOLUTION: An engine 1 using fuel such as gas oil as lubricating oil is provided with a purge valve 20 supplying vapor formed at engine each part to an engine suction system as premixed compression ignition combustion fuel. ECU 21 of the engine 1 calculates target vapor supply quantity necessary as premixed compression ignition combustion fuel based on data acquired by an exhaust A/F sensor 26, and other sensor group 24, and adjusts opening of the purge valve 20 to keep the quantity to target vapor supply quantity. Discharge of vapor to atmosphere can be avoided by consuming the vapor as premixed compression ignition combustion fuel.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种由燃料例如瓦斯油润滑的柴油发动机，其能够防止当诸如瓦斯油的燃料作为润滑油用于大气时形成的瓦斯油等的蒸气排放。 解决方案：使用诸如瓦斯油等燃料作为润滑油的发动机1设置有将发动机各部分形成的蒸气供给到发动机抽吸系统作为预混压缩点火燃烧燃料的排气阀20。 发动机1的ECU21基于由排气A / F传感器26和其他传感器组24获取的数据来计算作为预混压缩点火燃烧燃料所需要的目标蒸汽供给量，并且调节排气阀20的开度以保持数量 目标蒸汽供应量。 通过将蒸汽作为预混合的压燃式燃烧燃料消耗，可以避免将蒸气排放到大气中。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2003278536A
公开(公告)日：2003-10-02
申请号：JP2002076524
申请日：2002-03-19
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KOBAYASHI MASAAKI , MATSUSHITA SOICHI , OKI HISASHI , HAYASHI KOTARO
Abstract: PROBLEM TO BE SOLVED: To prevent lowering in the purifying performance of a particulate filter, in an exhaust emission control device for an internal combustion engine equipped with the particulate filter supported by an NOx occluded agent. SOLUTION: In this exhaust emission control device for the internal combustion engine equipped with the particulate filter supported by the NOx occluded agent, a pre-catalyst wherein an oxidation catalyst 212 is supported on a supporting layer 211 made from titania or silica is disposed upstream from the particulate filter. Clogging of the particulate filter is prevented, while SOx poisoning of the pre-catalyst is also prevented. COPYRIGHT: (C)2004,JPO
Abstract translation: 要解决的问题：为了防止在装有由NOx吸留剂负载的微粒过滤器的内燃机的废气排放控制装置中，微粒过滤器的净化性能降低。 解决方案：在这种配备有由NOx吸留剂负载的微粒过滤器的内燃机的废气排放控制装置中，将氧化催化剂212负载在由二氧化钛或二氧化硅制成的支撑层211上的预催化剂是 设置在颗粒过滤器的上游。 防止了颗粒过滤器的堵塞，同时也防止了预催化剂的SO x中毒。 版权所有（C）2004，JPO
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公开(公告)号：JP2009062925A
公开(公告)日：2009-03-26
申请号：JP2007232893
申请日：2007-09-07
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OKUMURA FUMIHIRO , MATSUSHITA SOICHI , HABA YUKI , NOMURA SHIGEO
Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection nozzle controlling penetration force of fuel from a viewpoint different from former nozzles.
SOLUTION: In the fuel injection nozzle 1 for an internal combustion engine provided with a nozzle body 50 including a first injection hole 30 and a second injection hole 40 for injecting fuel, and an outside needle 10 and an inside needle 20 movably arranged in the nozzle body 50 and opening and closing the first injection hole 30 and the second injection hole 40 respectively, opening the first injection hole 30 by the outside needle 10 when an operating range of the internal combustion engine is in a light load zone, and opening the first injection hole 30 and the second injection hole 40 by the outside needle 10 and the inside needle 20 respectively when the operating range of the internal combustion engine is in a middle and heavy load zone, the first injection hole 30 includes a flow-in port 31 and a flow-out port 32, the second injection hole 40 includes a flow-in port 41 and a flow-out port 42, and opening area of the flow-in port 31 is formed larger than opening area of the flow-out port 32.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种从与以前的喷嘴不同的观点来控制燃料的穿透力的燃料喷射喷嘴。 解决方案：在具有喷嘴体50的内燃机的燃料喷射喷嘴1中，喷嘴主体50包括第一喷射孔30和用于喷射燃料的第二喷射孔40，外部针10和内部针20可移动地布置 在喷嘴体50中分别打开和关闭第一喷射孔30和第二喷射孔40，当内燃机的操作范围处于轻负载区时，由外针10打开第一喷射孔30，以及 当内燃机的工作范围处于中重负荷区时，分别由外针10和内针20分别打开第一喷射孔30和第二喷射孔40，第一喷射孔30包括： 在端口31和流出口32中，第二喷射孔40包括流入口41和流出口42，并且流入口31的开口面积形成为大于开口面积f 低端港32.版权所有（C）2009，JPO＆INPIT
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