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1. 发明授权

US06475446B1 Carrier body for exhaust gas catalysts 失效
标题翻译：废气催化剂载体
公开(公告)号：US06475446B1
公开(公告)日：2002-11-05
申请号：US08973470
申请日：1997-12-16
申请人： Tetsuro Horiike , Kimiyoshi Nishizawa , Hideaki Takahashi
发明人： Tetsuro Horiike , Kimiyoshi Nishizawa , Hideaki Takahashi
IPC分类号： B01D5334
CPC分类号： F01N3/2814 , B01J35/04 , F01N3/281 , F01N2330/321 , Y10T428/1234 , Y10T428/24149
摘要： A metal catalyst carrier body includes layers of first and second metal sheets defining passages through which exhaust gases flow. The first metal sheet is corrugated and engaged with the second metal sheet in each of upstream and downstream regions at numeral contact points. In intermediate region between the upstream and downstream regions, the first metal sheet is out of engagement with the second metal sheet.
摘要翻译：金属催化剂载体主体包括限定废气流过的通道的第一和第二金属板的层。第一金属片是波纹状的，并且在数字接触点的每个上游和下游区域中与第二金属片接合。在上游和下游区域之间的中间区域中，第一金属片与第二金属片脱离接合。

2. 发明授权

US06341487B1 Catalyst temperature control device and method of internal combustion engine 失效
标题翻译：催化剂内燃机温度控制装置及方法
公开(公告)号：US06341487B1
公开(公告)日：2002-01-29
申请号：US09537515
申请日：2000-03-29
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： F01N300
CPC分类号： F01N3/0842 , F01N3/0885 , F01N2430/06 , F01N2570/04 , F02B2075/125 , F02D41/024 , F02D41/028 , F02D41/3023 , F02D41/402 , F02D2200/0806 , F02D2200/0818 , Y02T10/123 , Y02T10/26
摘要： A catalyst (9) is disposed in an exhaust passage (8) of an internal combustion engine (1) for trapping nitrogen oxides in the exhaust from a fuel mixture of a lean air-fuel ratio and reducing trapped nitrogen oxides in the exhaust from a fuel mixture of an air-fuel ratio other than the lean air-fuel ratio. The catalyst (9) also traps sulfur oxides in the exhaust when the catalyst temperature is less than a predetermined temperature, and discharges the trapped sulfur oxides when the catalyst temperature rises above the predetermined temperature. A microprocessor (10) calculates for example the sulfur oxide stored amount of the catalyst (9) based on engine running conditions, and determines that sulfur oxide discharge condition is satisfied when the sulfur oxide stored amount exceeds a predetermined amount. When the discharge condition is satisfied, the microprocessor (10) controls the fuel injection amount and fuel injection timing of the fuel injector (6) so as to generate a stratified air-fuel mixture in the combustion chamber (3). The stratified air-fuel mixture comprises a first layer surrounding the spark plug (7) and a second layer situated outside the first layer. The first layer comprises an atomized air-fuel mixture of a rich air-fuel ratio within an ignitable range. The second layer is leaner than the first layer.
摘要翻译：催化剂（9）设置在内燃机（1）的排气通道（8）中，用于从废空气的燃料混合物捕获排气中的氮氧化物，并从排气中的氮气中还原捕集的氮氧化物燃料混合物之间的空燃比而不是稀空燃比。当催化剂温度低于预定温度时，催化剂（9）还捕集排气中的硫氧化物，并且当催化剂温度升高到预定温度以上时，将被捕获的硫氧化物排出。微处理器（10）基于发动机运转条件计算催化剂（9）的硫氧化物储存量，并且当硫氧化物储存量超过预定量时，确定满足硫氧化物排放条件。当满足排放条件时，微处理器（10）控制燃料喷射器（6）的燃料喷射量和燃料喷射正时，从而在燃烧室（3）中产生分层的空气 - 燃料混合物。分层空气 - 燃料混合物包括围绕火花塞（7）的第一层和位于第一层外部的第二层。第一层包括在可燃范围内的富空燃比的雾化空气 - 燃料混合物。第二层比第一层更薄。

3. 发明授权

US6145304A Deterioration determination apparatus for exhaust emission control device of internal combustion engine 失效
标题翻译：内燃机废气排放控制装置的劣化判定装置
公开(公告)号：US6145304A
公开(公告)日：2000-11-14
申请号：US220382
申请日：1998-12-24
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： F01N3/08 , F01N3/18 , F01N3/20 , F01N3/24 , F01N11/00 , F01N13/02 , F02D41/14 , F01N3/00
CPC分类号： F01N3/0835 , F01N11/007 , F01N13/009 , F01N3/0871 , F01N2550/03 , Y02T10/20 , Y02T10/47
摘要： The disclosed deterioration determination apparatus for an exhaust emission control device used for an internal combustion engine is intended for the exhaust emission control device comprising the first catalyst, arranged in the exhaust passage of the engine, for conducting a catalytic action with respect to exhaust gas passed through the exhaust passage and the second catalyst, arranged in the downstream of the first catalyst in the exhaust passage, for conducting a catalytic action with respect to the exhaust gas passed through the exhaust passage. The deterioration determination apparatus includes the first sensor, arranged between the first catalyst and second catalyst, for detecting information about the air-fuel ratio of the exhaust gas passed through the exhaust passage; the second sensor, arranged in the downstream of the second catalyst, for detecting information about the air-fuel ratio of the exhaust gas passed through the exhaust passage; and a control unit. The control unit measures the amplitude of the air-fuel ratio of the exhaust gas from the information detected by the first sensor, while feedback controlling an air-fuel ratio of mixture gas supplied to the engine based on the information detected by the second sensor, and determines whether or not the second catalyst deteriorates based on the measured amplitude of the air-fuel ratio.
摘要翻译：所公开的用于内燃机的废气排放控制装置的劣化确定装置旨在用于包括布置在发动机的排气通道中的用于对通过的废气进行催化作用的第一催化剂的废气排放控制装置通过排气通道和第二催化剂，布置在排气通道中的第一催化剂的下游，用于相对于通过排气通道的排气进行催化作用。劣化判定装置包括：第一传感器，配置在第一催化剂和第二催化剂之间，用于检测通过排气通路的废气的空燃比的信息; 布置在第二催化剂下游的第二传感器，用于检测通过排气通道的废气的空燃比的信息; 和控制单元。控制单元根据由第一传感器检测到的信息来测量排气的空燃比的幅度，同时基于由第二传感器检测到的信息反馈控制供给到发动机的混合气体的空燃比，并且基于所测量的空燃比的幅度来判定第二催化剂是否劣化。

4. 发明授权

US6057263A Metallic catalyst carrier 失效
标题翻译：金属催化剂载体
公开(公告)号：US6057263A
公开(公告)日：2000-05-02
申请号：US32925
申请日：1998-03-02
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： B32B3/12 , B01D53/86 , B01J35/04 , B21D47/00 , F01N3/28 , B01J21/04 , B01J8/02 , B01D50/00
CPC分类号： B01J35/04 , F01N3/281 , F01N3/2821 , F01N2330/321 , F01N2330/323 , F01N2330/38
摘要： A metallic catalyst carrier forming part of a catalytic converter for purifying exhaust gas discharged from an internal combustion engine of an automotive vehicle. The metallic catalyst carrier comprises a plurality of layers of corrugated metal sheet which has a plurality of corrugations whose ridge portions are parallel with each other and extend in a direction of flow of gas to be purified, and a plurality of layers of flat metal sheet which is substantially flat. Each layer of the flat metal sheet and each layer of the corrugated metal sheet are alternately put one upon another so as to form the metallic catalyst carrier of a monolithic structure in which gas passages are defined between each layer of the flat metal sheet and each layer of the corrugated sheet, the gas flowing through the gas passages in the gas flow direction. Additionally, the metallic catalyst carrier of the monolithic structure has a gas inlet section through which the gas is introduced, a gas outlet section through which the gas is discharged, and an intermediate section located between the gas inlet section and the gas outlet section in the gas flow direction. The intermediate section includes only either one of the layers of the flat metal sheet and the layers of the corrugated metal sheet so as to be free from the other. The gas passages of the gas outlet section are higher in cross-sectional density than those of the gas inlet section.
摘要翻译：一种金属催化剂载体，其形成用于净化从机动车辆的内燃机排出的废气的催化转化器的一部分。金属催化剂载体包括多层波纹金属片，其具有多个波纹，其脊部彼此平行并且沿待净化的气体的流动方向延伸，以及多层平的金属片，其中，基本平坦。将平坦金属片和波纹状金属片的每一层交替地彼此叠放，以形成整体结构的金属催化剂载体，其中在每个平的金属片层和每层之间限定了气体通道的波纹片，气体在气体流动方向上流过气体通道。此外，整体式结构的金属催化剂载体具有气体导入部，导入气体的气体导出部，排出气体的气体导出部以及位于气体导出部和气体导出部之间的中间部气流方向。中间部分仅包括平板金属片的任一层和波纹状金属片的层，以便彼此不相连。气体出口部分的气体通道的截面密度高于气体入口部分的气体通道。

5. 发明授权

US06347514B1 Air-fuel ratio control system for engine 失效
标题翻译：发动机空燃比控制系统
公开(公告)号：US06347514B1
公开(公告)日：2002-02-19
申请号：US09586614
申请日：2000-06-02
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： F01N300
CPC分类号： F02D41/0082 , F02D41/0235 , F02D41/1443
摘要： In an engine having first and second cylinder groups, a first sensor senses an air-fuel ratio of an exhaust gas mixture into a first catalytic converter for the first cylinder group, a second sensor senses an air-fuel ratio of an exhaust gas mixture into a second catalytic converter for the second cylinder group. A controller normally controls the air fuel ratios of the first and second cylinder groups independently by using first and second air-fuel ratio feedback correction coefficients. When a diagnosis for the catalytic converters is required, the controller measures a rich time and a lean time in the air-fuel ratio variation of the second cylinder group in accordance with an output of the second sensor to determine a second cylinder group's rich/lean ratio between the rich time and the lean time, calculates a correction quantity to bring the second cylinder group's ratio closer to a target ratio, and determines a modified coefficient by modifying the first air-fuel ratio feedback correction coefficient with the correction quantity feedback-controls the air-fuel ratio of the second cylinder group with the modified coefficient as the second air-fuel ratio feedback correction coefficient.
摘要翻译：在具有第一和第二气缸组的发动机中，第一传感器将排气混合物的空燃比感测为用于第一气缸组的第一催化转化器，第二传感器感测排气混合物的空燃比用于第二气缸组的第二催化转化器。控制器通常通过使用第一和第二空燃比反馈校正系数独立地控制第一和第二气缸组的空燃比。当需要对催化转化器的诊断时，控制器根据第二传感器的输出来测量第二气缸组的空燃比变化的富时间和稀薄时间，以确定第二气缸组的浓/ 计算用于使第二气缸组的比例接近目标比的校正量，并且通过用校正量反馈控制修改第一空燃比反馈校正系数来确定修正系数具有修正系数的第二气缸组的空燃比作为第二空燃比反馈校正系数。

6. 发明授权

US06237330B1 Exhaust purification 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：US06237330B1
公开(公告)日：2001-05-29
申请号：US09289980
申请日：1999-04-13
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa , Takeshi Nakamura
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa , Takeshi Nakamura
IPC分类号： F01N308
CPC分类号： F02D41/0082 , B01D53/9495 , F01N3/0842 , F01N13/009 , F01N13/011 , F01N13/107 , F01N2250/12 , F01N2570/04 , F01N2570/16 , F02D41/0055 , F02D41/028 , F02D2200/0818 , F02M26/15 , Y02T10/22
摘要： The temperature of a downstream catalyst is effectively increased while avoiding temperature increase of an upstream catalyst, so as to remove SOx from the downstream catalyst. For this purpose, a first front three-way catalyst 21 of a first exhaust gas passage 5a connected to a first cylinder group, a second front three-way catalyst 22 of a second exhaust gas passage 5b connected to a second cylinder group, and a rear three-way catalyst 23 installed in an exhaust gas passage 5c which combines the exhaust of both of these exhaust gas passages, are provided. When the conditions hold for performing temperature increase of the rear three-way catalyst 23, the control unit 11 sets the air-fuel ratio of the exhaust supplied to one front catalyst to richer than the stoichiometric air-fuel ratio, and sets the air-fuel ratio of the exhaust gas supplied to the other front catalyst to leaner than the stoichiometric air-fuel ratio. Due to this, unburnt fuel and oxygen which passed through the front catalysts flow into the rear catalyst, promote the reactions in the rear catalyst so as to raise its temperature, and thereby promote discharge and reduction of SOx.
摘要翻译：下游催化剂的温度有效地提高，同时避免了上游催化剂的温度升高，从而从下游催化剂中除去SOx。为此，连接到第一气缸组的第一排气通道5a的第一前三通催化剂21，连接到第二气缸组的第二排气通道5b的第二前三通催化剂22和设置在组合了这两个废气通道的排气的排气通道5c中的后三通催化剂23。另外，控制部11在为了进行后三通催化剂23的升温的条件成立的情况下，将供给一个前侧催化剂的排气的空燃比设定为比理论空燃比更浓，供给到另一前侧催化剂的废气的燃料比比理论空燃比更稀。由此，通过前催化剂的未燃燃料和氧气流入后催化剂，促进后催化剂中的反应，从而升高其温度，从而促进SO x的排放和还原。

7. 发明授权

US06216450B1 Exhaust emission control system for internal combustion engine 有权
标题翻译：内燃机废气排放控制系统
公开(公告)号：US06216450B1
公开(公告)日：2001-04-17
申请号：US09268997
申请日：1999-03-16
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： F01N328
CPC分类号： F01N3/0842 , F01N2550/03 , F01N2570/16 , F02D41/0275 , F02D2200/0808 , F02D2200/0816 , Y02T10/22
摘要： An exhaust emission control system for an internal combustion engine diagnoses a NOx storage capacity of a NOx storage type three-way catalyst disposed in an exhaust passage. A control unit of the exhaust emission control system includes a calculating section which calculates a quantity of fuel to a cylinder to bring an air fuel ratio of air-fuel mixture closed to a target ratio and to output an injection signal to a fuel injector based on the calculated quantity of fuel, an executing section which executes a rich-spike treatment for temporally enriching the air-fuel ratio of air-fuel mixture supplied to the engine in a lean condition, and a diagnosing section which diagnoses a NOx storage capacity of said NOx storage type three-way catalyst on the basis of a peak value of the air-fuel ratio during the rich-spike treatment.
摘要翻译：用于内燃机的废气排放控制系统诊断设置在排气通道中的NOx存储型三元催化剂的NOx储存容量。废气排放控制系统的控制单元包括：计算部，该计算部根据气缸的燃料量计算出空燃比混合气体的空燃比为目标比，并将喷射信号输出到燃料喷射器的基础上所计算的燃料量，执行富时处理以在时间上丰富在稀薄状态下供给到发动机的空气燃料混合物的空燃比的执行部，以及诊断部，其诊断所述 NOx储存型三元催化剂，基于富时处理中空燃比的峰值。

8. 发明授权

US06679050B1 Exhaust emission control device for internal combustion engine 失效
标题翻译：内燃机废气排放控制装置
公开(公告)号：US06679050B1
公开(公告)日：2004-01-20
申请号：US09527519
申请日：2000-03-16
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： F01N300
CPC分类号： F01N3/0842 , F01N2570/04 , F02D41/025 , F02D41/0275 , F02D41/028 , F02D2200/0806 , F02D2200/0811 , F02D2200/0818 , Y02T10/22 , Y02T10/26
摘要： The exhaust pipe (7) of an engine (1) is provided with a front three-way catalyst (8) and a rear three-way catalyst (9). A controller (6) determines whether temperature rise conditions in the rear three-way catalyst (9) are satisfied. When temperature rise conditions in the rear three-way catalyst (9) are satisfied, the air-fuel ratio of the exhaust gas flowing into the front three-way catalyst (8) is made to fluctuate periodically to rich or lean about the stoichiometric air-fuel ratio, and the amplitude of air-fuel ratio fluctuation is increased. In this way, temperature rise of the front three-way catalyst (8) is suppressed, and the temperature of the rear three-way catalyst (9) rises.
摘要翻译：发动机（1）的排气管（7）设有前三通催化剂（8）和后三通催化剂（9）。控制器（6）确定是否满足后三通催化剂（9）中的温度上升条件。当满足后三通催化剂（9）的升温条件时，流入前三元催化剂（8）的排气的空燃比使周期性地变化为富于或偏离化学计量空气 - 燃料比，空燃比波动幅度增大。这样，前三元催化剂（8）的温度上升被抑制，后三元催化剂（9）的温度上升。

9. 发明授权

US06233923B1 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：US06233923B1
公开(公告)日：2001-05-22
申请号：US09532325
申请日：2000-03-21
申请人： Hidetoshi Itou , Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hidetoshi Itou , Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： F01N300
CPC分类号： F01N3/085 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/2006 , F01N11/007 , F01N13/009 , F01N2260/04 , F01N2430/06 , F01N2550/02 , F01N2900/0422 , Y02T10/22 , Y02T10/26 , Y02T10/47
摘要： A primary deterioration diagnosis of a front catalyst (8) is performed based on the air-fuel ratio of the exhaust gas downstream of the front catalyst (8) detected in a first period each time the first period elapses when the engine (1) is running in a diagnosis region. A secondary deterioration diagnosis of the front catalyst (8) is performed based on the air-fuel ratio of the exhaust gas downstream of the front catalyst (8) detected in a second period longer than the first period each time the second period elapses when the engine (1) is running in the diagnosis region. When SOx discharge control is performed, primary diagnosis and secondary diagnosis are prohibited, and if it is determined in the primary diagnosis that the front catalyst (8) has deteriorated, SOx discharge control is prohibited to provide an opportunity for secondary diagnosis. In this way, the deterioration diagnosis of the front catalyst (8) can be precisely performed even if there are few opportunities for diagnosis due to lean air-fuel ratio running or SOx discharge control.
摘要翻译：基于当发动机（1）为（1））时，在第一时间段内经过第一时间段时检测到的前催化剂（8）下游排气的空燃比，进行前催化剂（8）的初级劣化诊断在诊断区域运行。基于前述催化剂（8）的下游侧的排气的空燃比，在第二时间段内的第二期间内，在第二期间经过第二期间，进行二次劣化诊断发动机（1）正在诊断区域运行。当执行SOx放电控制时，禁止进行一次诊断和二次诊断，如果在初步诊断中确定前部催化剂（8）劣化，则禁止SOx排出控制以提供二次诊断的机会。以这种方式，即使由于稀薄空燃比运行或SOx排放控制而几乎没有诊断机会，也能够精确地进行前催化剂（8）的劣化诊断。

10. 发明授权

US5564404A Air/fuel ratio control system of internal combustion engine 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5564404A
公开(公告)日：1996-10-15
申请号：US527969
申请日：1995-09-14
申请人： Hideaki Takahashi , Kimiyoshi Nishizawa
发明人： Hideaki Takahashi , Kimiyoshi Nishizawa
IPC分类号： F02D41/06 , F02D41/14
CPC分类号： F02D41/06 , F02D41/061 , F02D41/1446 , F02D41/1474
摘要： A lean air/fuel ratio control device is provided for feeding the engine with a mixture of a desired lean air/fuel ratio for a given time from the time on which the engine is started. A stoichiometric air/fuel ratio control device is provided for feeding the engine with a mixture of a substantially stoichiometric air/fuel ratio once the given time passes. A temperature sensor is provided for sensing the temperature of cooling water of the engine at the time when the engine is just started. A control unit is provided for varying the given time in accordance with the temperature sensed by the temperature sensor. The given time may be varied in accordance with the activity of the oxygen sensor or the temperature of exhaust gas from the engine.
摘要翻译：提供了一种稀薄空气/燃料比控制装置，用于在发动机启动时间内给定发动机与给定时间的所需稀薄空气/燃料比的混合。提供了一种化学计量空气/燃料比控制装置，用于在给定时间过去之后将发动机以基本上理论空燃比的混合物供给。提供温度传感器，用于感测发动机刚起步时发动机的冷却水温度。提供控制单元，用于根据温度传感器感测到的温度来改变给定的时间。给定的时间可以根据氧传感器的活动或来自发动机的废气的温度而变化。

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