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1. 发明授权

US06463734B1 Exhaust emission control device of internal combustion engine 有权
公开(公告)号：US06463734B1
公开(公告)日：2002-10-15
申请号：US09651653
申请日：2000-08-30
申请人： Yasuki Tamura , Osamu Nakayama , Tetsuya Watanabe , Kazuhito Kawashima
发明人： Yasuki Tamura , Osamu Nakayama , Tetsuya Watanabe , Kazuhito Kawashima
IPC分类号： F01N300
CPC分类号： F01N3/0842 , F01N3/0814 , F01N3/101 , F01N11/00 , F01N11/002 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F02D41/0235 , F02D41/0275 , F02D41/1446 , F02D2200/0804 , Y02T10/22 , Y02T10/47
摘要： An exhaust emission control device of an internal combustion engine, which purifies exhaust gas exhausted from the internal combustion engine, comprises: a catalyst device composed of a three way catalyst for purifying harmful substance in the exhaust gas when an exhaust air-fuel ratio is substantially stoichiometrical and an NOx catalyst having a function of absorbing NOx in the exhaust gas when the air-fuel ratio is closer to a lean air-fuel ratio than to the stoichiometrical air-fuel ratio, the catalyst device being provided in an exhaust passage of the internal combustion engine; catalyst deterioration determination means for determining deterioration state of the catalyst device, the deterioration resulting from at least temperature; and control means for deteriorating exhaust gas components flowing into the catalyst device much more than exhaust gas components flowing into the catalyst device when an air-fuel ratio of a mixture supplied to the internal combustion engine is substantially stoichiometrical, if the catalyst deterioration determination means determines that the catalyst device is in a predetermined deterioration state. The deterioration of an NOx absorbing function of the NOx catalyst results from at least the destabilization of absorbing material in the NOx catalyst, which is caused by the rise in the temperature. Thus, if the catalyst deterioration determination means determines that the catalyst device is in the predetermined deterioration state, the exhaust gas components flowing into the catalyst device are deteriorated much more than the exhaust gas components flowing into the catalyst device when the air-fuel ratio of the mixture supplied to the internal combustion engine is substantially stoichiometrical. Therefore, CO, H2, NOx, O2, THC and the like are supplied to the absorbing material to thereby stabilize the absorbing material as carbonate, nitrite or acid oxide. This prevents the heat deterioration. This extends a heat-resisting life of the catalyst device, and prevents the deterioration of an exhaust gas characteristic and the increase in cost.

2. 发明授权

US06976356B2 Exhaust gas purifier for use in internal combustion engine 有权
标题翻译：用于内燃机的废气净化器
公开(公告)号：US06976356B2
公开(公告)日：2005-12-20
申请号：US10768142
申请日：2004-02-02
申请人： Kojiro Okada , Osamu Nakayama , Yasuki Tamura , Kazuhito Kawashima
发明人： Kojiro Okada , Osamu Nakayama , Yasuki Tamura , Kazuhito Kawashima
IPC分类号： B01D53/94 , F01N3/08 , F01N3/20 , F01N13/02 , F02D41/02 , F02D41/40 , F01N3/00
CPC分类号： F02D41/405 , B01D53/9495 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2250/12 , F01N2550/03 , F01N2570/14 , F01N2610/03 , F02D41/027 , F02D41/0275 , Y02A50/2344 , Y02T10/22 , Y02T10/44
摘要： When a NOx-releasing unit is operated to change an air-fuel ratio to a rich side to thereby establish a low-oxygen-concentration atmosphere of an exhaust gas such that NOx is released from a NOx catalyst, a reducer-supplying unit additionally supplies a reducer during an operating period of the NOx-releasing unit for reducing NOx released into an exhaust path such that release of NOx balances with reduction of NOx, thereby reducing NOx released from the NOx catalyst and thus suppressing worsening of an exhaust gas performance.
摘要翻译：当操作NOx释放单元以将空燃比改变为富侧时，从而建立排气的低氧浓度气氛，使得NOx从NOx催化剂释放，还原剂供应单元另外供应 NOx释放单元的运转期间的还原剂，用于将NO x释放到排气路径中，使得NOx的释放与NO x的还原相结合，从而减少从NOx催化剂释放的NOx，从而抑制废气性能的恶化。

3. 发明授权

US06718756B1 Exhaust gas purifier for use in internal combustion engine 有权
标题翻译：用于内燃机的废气净化器
公开(公告)号：US06718756B1
公开(公告)日：2004-04-13
申请号：US09646689
申请日：2000-09-21
申请人： Kojiro Okada , Osamu Nakayama , Yasuki Tamura , Kazuhito Kawashima
发明人： Kojiro Okada , Osamu Nakayama , Yasuki Tamura , Kazuhito Kawashima
IPC分类号： F01N300
CPC分类号： F02D41/405 , B01D53/9495 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2250/12 , F01N2550/03 , F01N2570/14 , F01N2610/03 , F02D41/027 , F02D41/0275 , Y02A50/2344 , Y02T10/22 , Y02T10/44
摘要： When a NOx-releasing unit is operated to change an air-fuel ratio to a rich side to thereby establish a low-oxygen-concentration atmosphere of an exhaust gas such that NOx is released from a NOx catalyst, a reducer-supplying unit 33 additionally supplies a reducer during an operating period of the NOx-releasing unit for reducing NOx released into an exhaust path such that release of NOx balances with reduction of NOx, thereby reducing NOx released from the NOx catalyst and thus suppressing worsening of exhaust gas performance.
摘要翻译：当操作NOx释放单元以将空燃比改变为富侧时，从而建立排气的低氧浓度气氛，使NOx从NOx催化剂释放，另外还有还原剂供应单元33 在NOx释放单元的运转期间向减压器供给减少排出通路的NOx，使得NOx的释放与NO x的还原相结合，从而减少从NOx催化剂释放的NOx，从而抑制排气性能的恶化。

4. 发明授权

US06672051B2 Exhaust emission purifying device for internal combustion engine 有权
标题翻译：内燃机排气净化装置
公开(公告)号：US06672051B2
公开(公告)日：2004-01-06
申请号：US09821037
申请日：2001-03-30
申请人： Yasuki Tamura , Kazuhito Kawashima , Takuya Okamoto , Osamu Nakayama
发明人： Yasuki Tamura , Kazuhito Kawashima , Takuya Okamoto , Osamu Nakayama
IPC分类号： F01N300
CPC分类号： F01N3/0842 , F01N3/0871 , F01N9/00 , F01N2900/0422 , F02B2075/125 , F02D41/027 , Y02A50/2324 , Y02T10/123 , Y02T10/22 , Y02T10/47
摘要： When exhaust gases flowing into catalysts (e.g., a NOx catalyst and a three-way catalyst) continue to be in the fuel-rich atmosphere for a predetermined period of time or longer, an exhaust emission purifying device for an internal combustion engine leans an air-fuel mixture or supplies the secondary air to the exhaust gases in order to turn the exhaust gases flowing into catalysts into an oxygen-rich atmosphere. This enables the proper regeneration of the degraded catalysts, and thus improves an exhaust emission control performance.
摘要翻译：当流入催化剂的废气（例如，NOx催化剂和三元催化剂）继续处于富燃料气氛预定的时间或更长时间时，用于内燃机的排气净化装置倾斜空气 - 将二次空气供给废气，以将流入催化剂的废气转化为富氧气氛。这使得能够适当地再生降解的催化剂，从而提高废气排放控制性能。

5. 发明申请

US20070000482A1 Exhaust emission control device of internal combustion engine 有权
公开(公告)号：US20070000482A1
公开(公告)日：2007-01-04
申请号：US10550520
申请日：2003-10-17
申请人： Yasuki Tamura , Kazuhito Kawashima , Hitoshi Toda
发明人： Yasuki Tamura , Kazuhito Kawashima , Hitoshi Toda
IPC分类号： F02D41/14
CPC分类号： F02D41/1454
摘要： The air/fuel ratio of exhaust flowing into a catalytic converter is forcibly modulated, between a lean air/fuel ratio leaner than a target average air/fuel ratio and a rich air/fuel ratio richer than the target average air/fuel ratio, with a specific period, a specific amplitude, a specific modulation ratio and a specific waveform. During the forcible modulation (S10, S12), the ratio of a time for which the output of an oxygen sensor is greater than a standard value Sb for the output set between the maximum and minimum values of the output (“rich” output time), or of a time for which it is smaller than the standard value Sb (“lean” output time), in a predetermined period of time, or a value correlating with this ratio is obtained (S14), and the air/fuel ratio of the exhaust is controlled on the basis of this ratio or the value correlating with this ratio (S16, S18).

6. 发明授权

US06938613B2 Internal combustion engine 失效
标题翻译：内燃机
公开(公告)号：US06938613B2
公开(公告)日：2005-09-06
申请号：US10397382
申请日：2003-03-27
申请人： Yasuki Tamura , Kazuhito Kawashima , Kazuhide Iwasa
发明人： Yasuki Tamura , Kazuhito Kawashima , Kazuhide Iwasa
IPC分类号： F01L1/00 , F02B23/00 , F02B23/10 , F02D13/02 , F02D21/08 , F02D41/02 , F02D41/04 , F02D41/34 , F02M25/07 , F02M23/00
CPC分类号： F02B23/104 , F01L1/00 , F01L2800/00 , F01L2800/06 , F02B2023/107 , F02D13/0276 , F02D41/345 , F02D2041/3088 , F02D2041/389 , Y02T10/125 , Y02T10/18 , Y02T10/44
摘要： An internal combustion engine is comprised of a gas injecting device injecting gas into the combustion chamber of the internal combustion engine, and a gas injection control device controlling the gas injecting device, wherein the gas injection control device provides control such that the gas is injected toward the combustion chamber for a period of time after flame extinguishing timing and before exhaust valve closing timing. Therefore, the internal combustion engine is capable of reliably combusting HC, CO, smoke, and so forth remained in a combustion chamber due to a quenching phenomenon or the like.
摘要翻译：内燃机由将内燃机的燃烧室内注入气体的气体喷射装置和控制气体喷射装置的气体喷射控制装置构成，其中，气体喷射控制装置提供控制，使气体朝向燃烧室在火焰熄灭正时之后和排气门关闭正时之前一段时间。因此，由于淬火现象等，内燃机能够可靠地燃烧残留在燃烧室中的HC，CO，烟等。

7. 发明授权

US07051689B2 Failure diagnostic system for exhaust pressure increasing device 失效
标题翻译：排气增压装置故障诊断系统
公开(公告)号：US07051689B2
公开(公告)日：2006-05-30
申请号：US10808363
申请日：2004-03-25
申请人： Yasuki Tamura , Kazuhito Kawashima , Hitoshi Toda
发明人： Yasuki Tamura , Kazuhito Kawashima , Hitoshi Toda
IPC分类号： F01L1/34
CPC分类号： F02D9/04 , F01N3/2006 , F01N11/00 , F01N2550/00 , F02D41/221 , F02D2200/0406 , Y02T10/26 , Y02T10/47
摘要： There is provided a failure diagnostic system which includes an intake channel and an exhaust channel in communication with cylinders of an internal combustion engine; the exhaust pressure increasing device that increases the exhaust system pressure of the exhaust channel; an intake system pressure detecting device provided in the intake channel, for detecting the intake system pressure; and an exhaust pressure increase failure diagnostic section that determines whether the exhaust pressure increasing device has failed or not according to intake system pressure information obtained by the intake system pressure detecting device and a predetermined failure diagnosis reference range.
摘要翻译：提供了故障诊断系统，其包括与内燃机的气缸连通的进气通道和排气通道; 排气增压装置，其增加排气通道的排气系统压力; 进气系统压力检测装置，设置在进气通道中，用于检测进气系统压力; 以及排气增压故障诊断部，根据由所述进气系统压力检测装置得到的进气系统压力信息和规定的故障诊断基准范围，判断排气增压装置是否发生故障。

8. 发明授权

US07275364B2 Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机废气排放控制装置
公开(公告)号：US07275364B2
公开(公告)日：2007-10-02
申请号：US10550520
申请日：2003-10-17
申请人： Yasuki Tamura , Kazuhito Kawashima , Hitoshi Toda
发明人： Yasuki Tamura , Kazuhito Kawashima , Hitoshi Toda
IPC分类号： F01N3/00
CPC分类号： F02D41/1454
摘要： The air/fuel ratio of exhaust flowing into a catalytic converter is forcibly modulated, between a lean air/fuel ratio leaner than a target average air/fuel ratio and a rich air/fuel ratio richer than the target average air/fuel ratio, with a specific period, a specific amplitude, a specific modulation ratio and a specific waveform. During the forcible modulation (S10, S12), the ratio of a time for which the output of an oxygen sensor is greater than a standard value Sb for the output set between the maximum and minimum values of the output (“rich” output time), or of a time for which it is smaller than the standard value Sb (“lean” output time), in a predetermined period of time, or a value correlating with this ratio is obtained (S14), and the air/fuel ratio of the exhaust is controlled on the basis of this ratio or the value correlating with this ratio (S16, S18).
摘要翻译：流入催化转化器的排气的空气/燃料比在强于目标平均空气/燃料比的稀空气/燃料比和比目标平均空气/燃料比更浓的空气/燃料比之间被强制调制，特定时间段，特定振幅，特定调制比和特定波形。在强制调制（S 10，S 12）期间，氧传感器的输出的时间比输出的最大值和最小值之间的输出设定的标准值Sb大（“浓”输出时间），或者在规定时间内小于标准值Sb（“瘦”输出时间）的时间，或与该比率相关的值（S14），空气/ 基于该比率或与该比率相关的值来控制排气的燃料比（S16，S18）。

9. 发明授权

US08015799B2 Multicylinder internal combustion engine 有权
标题翻译：多缸内燃机
公开(公告)号：US08015799B2
公开(公告)日：2011-09-13
申请号：US11171368
申请日：2005-07-01
申请人： Yasuki Tamura , Kazuhito Kawashima
发明人： Yasuki Tamura , Kazuhito Kawashima
IPC分类号： F01N3/00
CPC分类号： F01N13/10 , F01N13/008 , F01N13/1805 , F01N2450/24 , F01N2560/02 , F01N2560/025 , F02D41/008 , F02D41/1439
摘要： There is provided a multicylinder internal combustion engine. Branches of an exhaust manifold are connected to a common exhaust gas sensor via respective exhaust communication passages. The exhaust gas sensor detects the exhaust air-fuel ratio of each cylinder. The distance from exhaust ports of the engine to the exhaust gas sensor is set to be shorter than the distance from the exhaust ports to a catalyst disposed in an exhaust pipe.
摘要翻译：提供了一个多缸内燃机。排气歧管的分支通过相应的排气连通通道连接到公共废气传感器。废气传感器检测各气缸的排气空燃比。从发动机排气口到废气传感器的距离设定为比从排气口到设置在排气管中的催化剂的距离短。

10. 发明申请

US20060000204A1 Multicylinder internal combustion engine 有权
标题翻译：多缸内燃机
公开(公告)号：US20060000204A1
公开(公告)日：2006-01-05
申请号：US11171368
申请日：2005-07-01
申请人： Yasuki Tamura , Kazuhito Kawashima
发明人： Yasuki Tamura , Kazuhito Kawashima
IPC分类号： F01N3/00 , F02D41/00 , F01N3/10
CPC分类号： F01N13/10 , F01N13/008 , F01N13/1805 , F01N2450/24 , F01N2560/02 , F01N2560/025 , F02D41/008 , F02D41/1439
摘要： There is provided a multicylinder internal combustion engine. Branches of an exhaust manifold are connected to a common exhaust gas sensor via respective exhaust communication passages. The exhaust gas sensor detects the exhaust air-fuel ratio of each cylinder. The distance from exhaust ports of the engine to the exhaust gas sensor is set to be shorter than the distance from the exhaust ports to a catalyst disposed in an exhaust pipe.
摘要翻译：提供了一个多缸内燃机。排气歧管的分支通过相应的排气连通通道连接到公共废气传感器。废气传感器检测各气缸的排气空燃比。从发动机排气口到废气传感器的距离设定为比从排气口到设置在排气管中的催化剂的距离短。

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