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1. 发明授权

US06345496B1 Method and device for purifying exhaust gas of an engine 有权
标题翻译：用于净化发动机废气的方法和装置
公开(公告)号：US06345496B1
公开(公告)日：2002-02-12
申请号：US09502127
申请日：2000-02-10
申请人： Naohide Fuwa , Hiroshi Tanaka , Yukio Kinugasa , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Kouhei Igarashi , Kouichi Takeuchi
发明人： Naohide Fuwa , Hiroshi Tanaka , Yukio Kinugasa , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Kouhei Igarashi , Kouichi Takeuchi
IPC分类号： F01N300
CPC分类号： F02D41/1475 , B01D53/8696 , B01D53/9409 , B01D53/9422 , B01D53/9431 , B01D53/9445 , B01D53/9454 , B01D53/9477 , B01D53/9495 , B01D2255/102 , B01D2255/20761 , B01D2255/50 , B01D2255/911 , F01N3/0842 , F01N3/0871 , F01N3/20 , F01N3/2053 , F01N9/00 , F01N13/009 , F01N13/011 , F01N13/107 , F01N2240/25 , F01N2250/12 , F01N2570/18 , F01N2610/02 , F01N2610/03 , F02B1/04 , F02D41/027 , F02D41/0275 , F02D41/1443 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： An exhaust manifold (7) of an engine (1) is connected to a three way (TW) catalyst (8a), and the TW catalyst (8a) is connected to an NH3 adsorbing and oxidizing (NH3-AO) catalyst (10a). The engine (1) performs the lean and the rich engine operations alternately and repeatedly. When the engine (1) performs the rich operation and thereby the exhaust gas air-fuel ratio of the exhaust gas flowing into the TW catalyst (8a) is made rich, NOx in the inflowing exhaust gas is converted to NH3 in the TW catalyst (8a). The NH3 is then adsorbed in the NH3-AO catalyst (10a). Next, when the engine (1) performs the lean operation and thereby the exhaust gas air-fuel ratio of the exhaust gas flowing into the TW catalyst (8a) is made lean, NOx in the exhausted gas passes through the TW catalyst (8a), and flows into the NH3-AO catalyst (10a). At this time, NH3 adsorbed in the catalyst (10a) is desorbed therefrom, and reduces the inflowing NOx.
摘要翻译：发动机（1）的排气歧管（7）与三通（TW）催化剂（8a）连接，TW催化剂（8a）与NH3吸附和氧化（NH3-AO）催化剂（10a）连接，。发动机（1）交替地重复执行精益和丰富的发动机操作。当发动机（1）进行浓作操作，使流入TW催化剂（8a）的废气的排气空燃比变浓时，在TW催化剂中将流入废气中的NOx转化成NH 3 8a）。然后将NH 3吸附在NH3-AO催化剂（10a）中。接下来，当发动机（1）进行稀薄运转，从而将流入TW催化剂（8a）的废气的排气空燃比变为稀薄时，排出气体中的NOx通过TW催化剂（8a）并流入NH3-AO催化剂（10a）。此时，吸附在催化剂（10a）中的NH 3被脱附，并且减少了流入的NOx。

2. 发明授权

US5974793A Exhaust gas purification device for an internal combustion engine 失效
标题翻译：内燃机用废气净化装置
公开(公告)号：US5974793A
公开(公告)日：1999-11-02
申请号：US837933
申请日：1997-04-11
申请人： Yukio Kinugasa , Takaaki Itou , Naoto Suzuki , Koichi Takeuchi , Hiroshi Tanaka , Naohide Fuwa
发明人： Yukio Kinugasa , Takaaki Itou , Naoto Suzuki , Koichi Takeuchi , Hiroshi Tanaka , Naohide Fuwa
IPC分类号： F02B75/10 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F01N9/00 , F01N13/02 , F01N13/04 , F02B75/18 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/34 , F02D43/00 , F02D45/00 , F02M25/07 , F02P5/15 , F01N3/00
CPC分类号： F02D41/0082 , B01D53/9454 , B01D53/9495 , F01N13/009 , F01N13/011 , F01N3/0842 , F01N3/0871 , F01N3/20 , F01N3/2053 , F01N9/00 , F02D41/1475 , F02M26/15 , F02M26/38 , F01N2250/12 , F01N2430/06 , F01N2610/02 , F02D41/0275 , Y02T10/22 , Y02T10/47
摘要： In an exhaust gas purification device, a No. 1 cylinder of the engine is operated at a rich air-fuel ratio and other cylinders (No. 2 to No. 4) are operated at a lean air-fuel ratio. The exhaust gases from the No. 1 and No. 2 cylinders are mixed with each other to form a rich air-fuel ratio exhaust gas mixture. Further, since the air-fuel ratio of the No. 2 cylinder is lean, the exhaust gas from the No. 2 cylinder contains a relatively large amount of NO.sub.x. This rich air-fuel ratio exhaust gas mixture which contains a relatively large amount of NO.sub.X is supplied to a three-way catalyst. At the three-way catalyst, part of the NO.sub.X in the exhaust gas mixture is converted to NH.sub.3. The exhaust gas mixture flowing out from the three-way catalyst and the lean exhaust gas from the No. 3 and No. 4 flow into a common exhaust gas passage where they mix with each other to form a lean exhaust gas containing NH.sub.3 from the three-way catalyst and NO.sub.X from the No. 3 and No. 4 cylinders. This lean exhaust gas flows into a denitrating catalyst disposed on the common exhaust gas passage in which NO.sub.X in the exhaust gas is reduced by the NH.sub.3.
摘要翻译：在废气净化装置中，发动机的1号气缸以较高的空燃比运转，其他气缸（No.2〜No.4）以稀空燃比运转。来自1号和2号气缸的废气彼此混合，形成浓空气燃料比的废气混合物。此外，由于2缸的空燃比为稀，所以来自2号气缸的废气含有较多的NOx。将含有较多量的NO x的浓空燃比废气混合物供给至三元催化剂。在三元催化剂中，废气混合物中的一部分NO x转化为NH 3。从三元催化剂流出的废气混合物和来自3号和4号的贫废气流入共同的废气通道，在那里它们彼此混合，形成三来自3号和4号气瓶的催化剂和NOX。这种贫废气流入设置在排气中的NO x被NH 3还原的共用排气通道上的脱硝催化剂中。

3. 发明授权

US06289672B1 Exhaust gas purification device for an internal combustion engine 有权
标题翻译：内燃机用废气净化装置
公开(公告)号：US06289672B1
公开(公告)日：2001-09-18
申请号：US09346710
申请日：1999-07-02
申请人： Kenji Katoh , Takaaki Itou , Toshio Tanahashi , Hiroshi Tanaka , Naoto Suzuki , Yukio Kinugasa
发明人： Kenji Katoh , Takaaki Itou , Toshio Tanahashi , Hiroshi Tanaka , Naoto Suzuki , Yukio Kinugasa
IPC分类号： F01N300
CPC分类号： F02D41/1462 , F01N3/0814 , F01N3/0842 , F01N13/009 , F01N13/011 , F01N13/107 , F01N2430/06 , F02D41/027 , F02D41/0275 , F02D41/1443 , F02D41/1456 , F02D41/1465 , F02D41/1498 , F02D41/3029 , F02D41/307 , F02D41/405 , F02D2011/102 , F02D2200/0806 , F02D2200/1015 , F02D2200/602 , Y02T10/44
摘要： An NOx occluding and reducing catalyst is disposed in an exhaust gas passage of an internal combustion engine that operates at a lean air-fuel ratio. When the engine is operating at a lean air-fuel ratio, the NOx occluding and reducing catalyst absorbs NOx in the exhaust gas. To release NOx, the engine is operated at a rich air-fuel ratio so that the exhaust gas flowing into the NOx occluding and reducing catalyst acquires a rich air-fuel ratio. While the engine is operated in a region of moderate lean air-fuel ratios of from the stoichiometric air-fuel ratio to an air-fuel ratio of about 20 at the time when the engine operating air-fuel ratio is changing from a lean air-fuel ratio operation to a rich air-fuel ratio operation, an electronic control unit (ECU) of the engine injects secondary fuel, that does not contribute to combustion, into the cylinders of the engine through the direct cylinder fuel injection valves in the expansion stroke or the exhaust stroke of the cylinders, so that the exhaust gas flowing into the NOx occluding and reducing catalyst acquires a rich air-fuel ratio. This prevents unpurified NOx from flowing out of the NOx occluding and reducing catalyst at the time when the engine operating air-fuel ratio is changed.
摘要翻译： NOx吸收还原催化剂设置在以稀空燃比运转的内燃机的排气通路中。当发动机以稀薄的空燃比运转时，NOx吸留还原催化剂吸收废气中的NOx。为了释放NOx，发动机以丰富的空燃比运转，使得流入NOx吸留还原催化剂的废气获得浓空燃比。虽然发动机在发动机工作空燃比从稀薄空气燃料比变化时在从理论空燃比相对于大约20的空燃比的中等稀薄空燃比的区域中运行，燃料比操作到丰富的空燃比操作，发动机的电子控制单元（ECU）通过膨胀冲程中的直接气缸燃料喷射阀向发动机的气缸中喷射不助于燃烧的二次燃料或气缸的排气冲程，使得流入NOx吸留还原催化剂的废气获得浓空燃比。这防止了在发动机运转空燃比变化时未净化的NOx从NOx吸留还原催化剂流出。

4. 发明授权

US5690075A Method of and apparatus for controlling fuel injection in internal combustion engine 失效
标题翻译：用于控制内燃机燃油喷射的方法和装置
公开(公告)号：US5690075A
公开(公告)日：1997-11-25
申请号：US705966
申请日：1996-08-30
申请人： Hiroshi Tanaka , Naohide Fuwa
发明人： Hiroshi Tanaka , Naohide Fuwa
IPC分类号： F02D41/04 , F02D41/06 , F02M69/00 , F02N19/00 , F02M51/00
CPC分类号： F02D41/062
摘要： A method of, and an apparatus for, controlling fuel injection in an internal combustion engine prevent lean misfires and a discharge of unburned HC at and after the start of the engine. The apparatus has a drive circuit 50 for opening a fuel injector 12 of each cylinder at predetermined crank angles, a unit A for determining whether or not the speed of the engine is above a reference speed, a unit B for determining whether or not fuel in a cranking quantity has been injected into every cylinder of the engine, and a switching unit C for switching the quantity of fuel to be injected from the cranking quantity to a post-cranking quantity if the unit A determines that the engine speed is above the reference speed and the unit B determines that fuel in the cranking quantity has been injected into every cylinder.
摘要翻译：用于控制内燃机中的燃料喷射的方法和装置防止在发动机起动期间和之后的未燃烧HC的稀缺失火和排出。该装置具有用于以预定的曲柄角度打开每个气缸的燃料喷射器12的驱动电路50，用于确定发动机的速度是否高于参考速度的单元A.用于确定是否燃料的燃料的单元B 在发动机的每个气缸中已经注入了起动量，以及如果单元A确定发动机转速高于参考值的切换单元C，用于将从启动量喷射的燃料量切换到后起动量速度，单元B确定起动量中的燃料已经被注入到每个气缸中。

5. 发明授权

US6014955A Control apparatus for internal combustion engine using air-amount-first fuel-amount-second control method 失效
标题翻译：使用空气量第一燃料量 - 第二控制方法的内燃机的控制装置
公开(公告)号：US6014955A
公开(公告)日：2000-01-18
申请号：US932541
申请日：1997-09-17
申请人： Ichiro Hosotani , Hiroshi Tanaka , Naohide Fuwa , Iwao Maeda , Shigeo Kikori , Ken Kuretake
发明人： Ichiro Hosotani , Hiroshi Tanaka , Naohide Fuwa , Iwao Maeda , Shigeo Kikori , Ken Kuretake
IPC分类号： F02D41/00 , F02D41/10 , F02D41/34 , F02D11/10
CPC分类号： F02D41/34 , F02D41/0002 , F02D41/10 , Y02T10/42 , Y02T10/44
摘要： An air-amount-first fuel-amount-second control apparatus for an internal combustion engine having an electronically-controlled throttle valve. The response characteristic of the throttle valve is stored, a target value of the throttle valve opening degree corresponding to the operating position of the accelerator pedal is calculated, the intake air valve closing time of the fuel injection cylinder is calculated in accordance with the engine operating condition, the time required for reaching a target throttle valve opening degree is calculated from the target throttle valve opening degree and the stored value of the response characteristic of the throttle valve, the throttle valve opening degree as of the intake air valve closing time is calculated from the calculated time required for reaching the target throttle valve opening degree and the intake air valve closing time of the fuel injection cylinder. A fuel supply amount constituting a target air-fuel ratio is calculated from the target air-fuel ratio and the intake air amount corresponding to the throttle valve opening degree as of the intake air valve closing time, and the fuel in the calculated amount is supplied to the engine fuel injection cylinder.
摘要翻译：一种具有电子节流阀的内燃机的空气量第一燃料量 - 第二控制装置。存储节流阀的响应特性，计算与加速踏板的运转位置对应的节气门开度的目标值，根据发动机运转来计算燃料喷射气缸的进气门关闭时间条件是根据目标节气门开度和节流阀的响应特性的存储值计算达到目标节气门开度所需的时间，计算出进气门关闭时间的节气门开度从达到目标节气门开度所需的计算时间和燃料喷射气缸的进气阀关闭时间。从目标空燃比和与进气阀关闭时间相应的节气门开度的吸入空气量计算构成目标空燃比的燃料供给量，供给计算量的燃料到发动机燃油喷射缸。

6. 发明授权

US5915362A Intake control apparatus and method for engine 失效
标题翻译：发动机进气控制装置及方法
公开(公告)号：US5915362A
公开(公告)日：1999-06-29
申请号：US871640
申请日：1997-06-09
申请人： Naohide Fuwa , Hiroshi Tanaka
发明人： Naohide Fuwa , Hiroshi Tanaka
IPC分类号： F02D9/02 , F02D41/06 , F02D43/00 , F02M51/00
CPC分类号： F02D41/062 , F02D43/00 , F02D2009/0249 , Y02T10/42
摘要： A apparatus and method for adjusting the amount of air introduced into a cylinder of an internal combustion engine. An intake passage is connected to the cylinder for introducing air. An intake valve is provided in the intake passage for cyclically opening and closing the cylinder. An injector is provided in the intake passage for injecting fuel. A throttle valve is positioned in the intake passage for adjusting an amount of air flow into the cylinder. An electronic control unit (ECU) controls the position of the throttle valve. The ECU closes the intake passage to decrease the pressure in the intake passage when cranking is started. The ECU moves the throttle valve to a first open position .theta.2 to increase the amount of air introduced into the cylinder after a predetermined time period elapses from the start of engine cranking. The ECU moves the throttle valve to an open position .theta.1 when the engine starts.
摘要翻译：一种用于调节引入内燃机气缸的空气量的装置和方法。进气通道连接到气缸以引入空气。进气门设置在进气通道中以循环地打开和关闭气缸。喷射器设置在进气通道中用于喷射燃料。节流阀定位在进气通道中，用于调节进入气缸的气流量。电子控制单元（ECU）控制节流阀的位置。当起动开始时，ECU关闭进气通道以减小进气通道中的压力。在从发动机起动开始经过预定时间之后，ECU将节流阀移动到第一打开位置θ2以增加引入气缸的空气量。当发动机起动时，ECU将节流阀移动到打开位置θ1。

7. 发明授权

US5611314A Control device for internal combustion engine 失效
标题翻译：内燃机控制装置
公开(公告)号：US5611314A
公开(公告)日：1997-03-18
申请号：US548116
申请日：1995-10-25
申请人： Naohide Fuwa , Hiroshi Tanaka , Shigeki Miyashita , Hiroaki Nihei , Tadashi Fukuyama, deceased
发明人： Naohide Fuwa , Hiroshi Tanaka , Shigeki Miyashita , Hiroaki Nihei , Tadashi Fukuyama, deceased
IPC分类号： F02D41/04 , F02D41/06 , F02D41/22 , F02M65/00
CPC分类号： F02D41/042 , F02D41/062 , F02D41/221
摘要： A control device for an internal combustion engine comprises a fuel injector provided for each cylinder, an ignition plug starting ignition in each cylinder simultaneously with a start of the engine cranking, and a detection unit for detecting combustion in each cylinder when the engine is started which determines that the fuel injector of a cylinder in which ignition is carried out before fuel injection has a fuel leak when combustion is detected in the cylinder.
摘要翻译：一种用于内燃机的控制装置，包括为每个气缸设置的燃料喷射器，在启动发动机起动时同时在每个气缸中点火的火花塞，以及用于在发动机起动时检测每个气缸中的燃烧的检测单元，确定在燃料喷射之前进行点火的气缸的燃料喷射器在气缸中检测到燃烧时具有燃料泄漏。

8. 发明授权

US5826564A Fuel injection control apparatus and method for engine 失效
标题翻译：发动机燃油喷射控制装置及方法
公开(公告)号：US5826564A
公开(公告)日：1998-10-27
申请号：US871822
申请日：1997-06-09
申请人： Naohide Fuwa , Hiroshi Tanaka
发明人： Naohide Fuwa , Hiroshi Tanaka
IPC分类号： F02D9/02 , F02D11/10 , F02D41/06 , F02D41/32 , F02D45/00
CPC分类号： F02D41/32 , F02D11/10 , F02D41/062 , F02D2200/0402 , F02D2200/0408
摘要： A fuel supplying apparatus and method for supplying a cylinder of an internal combustion engine with fuel. An intake passage is connected to the cylinder for introducing air to the cylinder. An intake valve and an injector are provided in the intake passage. A throttle valve is positioned in the intake passage for adjusting the amount of air flow into the cylinder. An electronic control unit (ECU) controls the position of the throttle valve. The ECU controls the throttle valve to decrease the pressure in the intake passage when cranking is started. The ECU estimates the pressure adjacent to the intake port based on the engine speed and a time period measured from the start of cranking. The ECU also estimates what the intake port pressure will be when the intake valve is subsequently closed. The ECU computes an amount of fuel to be injected based on the pressure that was estimated based on a closed intake valve, and controls the injector to inject the computed amount of fuel.
摘要翻译：一种用于向内燃机的气缸供给燃料的燃料供给装置和方法。进气通道连接到气缸，用于将气体引入气缸。进气门和喷射器设置在进气通道中。节流阀位于进气通道中，用于调节进入气缸的气流量。电子控制单元（ECU）控制节流阀的位置。当起动开始时，ECU控制节流阀以减小进气通道中的压力。 ECU根据发动机转速和从启动开始测量的时间段来估计与进气口相邻的压力。 ECU还估计当进气门随后关闭时进气口压力将是什么。 ECU基于基于关闭的进气门估计的压力来计算要喷射的燃料量，并且控制喷射器喷射计算出的燃料量。

9. 发明授权

US5676101A Controllers for a combustion engine able to lower the intake air pressure to a vacuum during an engine cranking operation 失效
标题翻译：用于内燃机的控制器，其能够在发动机起动操作期间将进气压力降低至真空
公开(公告)号：US5676101A
公开(公告)日：1997-10-14
申请号：US641546
申请日：1996-05-01
申请人： Takashi Kawai , Hiroshi Tanaka , Naohide Fuwa
发明人： Takashi Kawai , Hiroshi Tanaka , Naohide Fuwa
IPC分类号： F01N3/32 , F02D9/02 , F02D41/06 , F02N19/00
CPC分类号： F02N19/001 , F01N3/32 , F02D9/02 , F02D2009/024 , F02D2009/0249 , Y02T10/20
摘要： The object of the present invention is to provide a controller, for a combustion engine, having a simple structure and which can reduce the exhaust emissions at the engine start-up time. The controller comprises a means for decreasing the pressure in an intake air passage downstream of a throttle valve during the engine cranking operation. A controller comprises an air pump, a means for communicating an inlet of the air pump either to the atmosphere or to an intake air passage downstream of a throttle valve, and a means for changing the inlet of the air pump from the atmosphere to the intake air passage downstream of the throttle valve and to activate the air pump during the engine cranking operation. Another controller comprises a vacuum tank, for example, a brake-booster instead of the air pump that enables it to more quickly reduce the air pressure in the intake air passage downstream the throttle valve.
摘要翻译：本发明的目的是提供一种用于内燃机的控制器，其具有简单的结构并且可以减少发动机启动时的废气排放。控制器包括用于在发动机起动操作期间降低节气门下游的进气通道中的压力的装置。控制器包括气泵，用于将空气泵的入口连通至大气或在节流阀下游的进气通道的装置，以及用于将空气泵的入口从大气改变为进气口的装置在节气门下游的空气通道，并且在发动机起动操作期间启动空气泵。另一个控制器包括一个真空罐，例如一个制动助力器而不是空气泵，使其能够更快地降低节流阀下游的进气通道中的空气压力。

10. 发明授权

US06378298B2 Exhaust purifying apparatus and method for internal combustion engine 有权
标题翻译：内燃机排气净化装置及方法
公开(公告)号：US06378298B2
公开(公告)日：2002-04-30
申请号：US09759316
申请日：2001-01-16
申请人： Kenji Harima , Takaaki Itou , Hiroki Ichinose , Kenji Katoh , Hiroshi Tanaka , Keiji Itou
发明人： Kenji Harima , Takaaki Itou , Hiroki Ichinose , Kenji Katoh , Hiroshi Tanaka , Keiji Itou
IPC分类号： F01N300
CPC分类号： F01N3/2046 , F01N3/05 , F01N3/0807 , F01N3/0814 , F01N3/0835 , F01N3/0842 , F01N3/085 , F01N3/0871 , F01N3/0878 , F01N3/0885 , F01N3/2006 , F01N3/22 , F01N3/30 , F01N13/009 , F01N13/0097 , F01N13/011 , F01N2240/02 , F01N2430/06 , F01N2570/04 , F01N2570/12 , F01N2570/14 , Y02A50/2344 , Y02T10/26
摘要： An exhaust purifying apparatus for an internal combustion engine includes a catalyst that purifies exhaust gas from the engine, a first passage that allows exhaust gas to flow from the engine to the catalyst, and a second passage that allows exhaust gas to flow from the engine to the catalyst. The first passage includes an accelerated cooling portion whose cross section is designed so that a relatively large quantity of heat is released from the exhaust gas in the first passage, and the second passage has a cross section designed so that a relatively small quantity of heat is released from the exhaust gas in the second passage. The apparatus further includes a flow amount controller that controls amounts of exhaust gas flowing through the first and second passages, such that the amount of exhaust gas flow through the first passage is made larger than that through the second passage when the temperature of exhaust gas emitted from the engine is to be lowered by a relatively large degree before reaching the catalyst, and such that the amount of exhaust gas flow through the second passage is made larger than that through the first passage when the temperature of exhaust gas emitted from the engine is to be lowered by a relatively small degree before reaching the catalyst.
摘要翻译：用于内燃机的排气净化装置包括净化来自发动机的废气的催化剂，允许废气从发动机流到催化剂的第一通道和允许废气从发动机流向的第二通道催化剂。第一通道包括加速冷却部分，其横截面设计成使得相对较大量的热量从第一通道中的废气释放，并且第二通道具有设计成使相对少量的热量从第二通道中的废气释放。该装置还包括流量控制器，其控制流过第一和第二通道的废气量，使得当排放的废气温度排出时，通过第一通道的废气流量大于通过第二通道的排气量在到达催化剂之前，发动机要相对较大地降低，并且当从发动机排出的废气的温度为从发动机排出的温度为在达到催化剂之前要相对较小地降低。

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