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公开(公告)号：US6021640A
公开(公告)日：2000-02-08
申请号：US201973
申请日：1998-12-01
申请人： Shinya Hirota , Toshiaki Tanaka , Satoshi Iguchi , Tatsuji Mizuno , Kazuya Kibe
发明人： Shinya Hirota , Toshiaki Tanaka , Satoshi Iguchi , Tatsuji Mizuno , Kazuya Kibe
CPC分类号： F01N3/2046 , F01N3/2006 , F01N3/2013 , F01N9/00 , F01N2240/02 , F01N2260/02 , F01N2260/022 , F01N2260/024 , F01N2570/14 , Y02T10/26 , Y02T10/47
摘要： According to the present invention, there is provided an exhaust gas purification device for an engine having an exhaust passage, the device comprising a catalyst arranged in the exhaust passage and having an upstream end and a downstream end, a purification ratio of exhaust gas by the catalyst becoming more than a predetermined ratio when a temperature of the catalyst is within a predetermined temperature range, cooling means for cooling the upstream end of the catalyst, heating means for heating the downstream end of the catalyst, and control means for controlling the cooling means and the heating means to maintain the temperature of a portion of the catalyst, which portion is positioned between the upstream end and the downstream end, in the predetermined temperature range.
摘要翻译： 根据本发明，提供一种用于具有排气通道的发动机的排气净化装置，该排气净化装置包括布置在排气通道中并具有上游端和下游端的催化剂，排气的净化比由 当催化剂的温度在预定的温度范围内时催化剂变得大于预定的比例，用于冷却催化剂的上游端的冷却装置，用于加热催化剂的下游端的加热装置，以及用于控制冷却装置的控制装置 以及加热装置，将该部分位于上游端和下游端之间的部分催化剂的温度保持在预定温度范围内。
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公开(公告)号：US5839275A
公开(公告)日：1998-11-24
申请号：US911811
申请日：1997-08-15
申请人： Shinya Hirota , Kazuya Kibe , Tatsuji Mizuno , Satoshi Iguchi , Toshiaki Tanaka
发明人： Shinya Hirota , Kazuya Kibe , Tatsuji Mizuno , Satoshi Iguchi , Toshiaki Tanaka
CPC分类号： F02D41/024 , F02D41/1446 , F02D41/402 , F02D41/405 , F01N2430/00 , F02B3/06 , F02D2041/389 , F02D2250/32 , Y02T10/26 , Y02T10/44
摘要： A fuel injection control device for a direct injection type engine having an exhaust passage and a NO.sub.x catalyst arranged therein to purify NO.sub.x in exhaust gas discharged from the engine comprises fuel injectors for injecting fuel into a cylinder. The injecting operation of the fuel injectors is controlled to carry out a main fuel injection at the latest at the beginning of a power stroke of the engine. The injecting operation of the fuel injectors is controlled to carry out a sub fuel injection at one of a power stroke and an exhaust stroke of the engine after the main fuel injection is completed to increase an amount of hydrocarbon in the exhaust gas. The injecting operation of the fuel injectors is controlled to carry out an additional sub fuel injection after the main fuel injection is completed and before the sub fuel injection is carried out.
摘要翻译： 一种用于直接喷射型发动机的燃料喷射控制装置，其具有布置在其中的用于净化从发动机排出的废气中的NOx的排气通道和NOx催化剂的直接喷射型发动机，其包括用于将燃料喷射到气缸中的燃料喷射器。 燃料喷射器的喷射操作被控制为在发动机的动力冲程开始时最迟执行主燃料喷射。 控制燃料喷射器的喷射操作，以在主燃料喷射完成之后执行在发动机的动力冲程和排气冲程之一的次燃料喷射以增加废气中的烃的量。 控制燃料喷射器的喷射操作，以在主燃料喷射完成之后并且执行次燃料喷射之前执行附加的副燃料喷射。
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公开(公告)号：US6029443A
公开(公告)日：2000-02-29
申请号：US861292
申请日：1997-05-21
申请人： Shinya Hirota , Toshiaki Tanaka , Satoshi Iguchi , Tatsuji Mizuno , Kazuya Kibe
发明人： Shinya Hirota , Toshiaki Tanaka , Satoshi Iguchi , Tatsuji Mizuno , Kazuya Kibe
CPC分类号： F01N3/2046 , F01N3/2006 , F01N3/2013 , F01N9/00 , F01N2240/02 , F01N2260/02 , F01N2260/022 , F01N2260/024 , F01N2570/14 , Y02T10/26 , Y02T10/47
摘要： According to the present invention, there is provided an exhaust gas purification device for an engine having an exhaust passage, the device comprising a catalyst arranged in the exhaust passage and having an upstream end and a downstream end, a purification ratio of exhaust gas by the catalyst becoming more than a predetermined ratio when a temperature of the catalyst is within a predetermined temperature range, cooling means for cooling the upstream end of the catalyst, heating means for heating the downstream end of the catalyst, and control means for controlling the cooling means and the heating means to maintain the temperature of a portion of the catalyst, which portion is positioned between the upstream end and the downstream end, in the predetermined temperature range.
摘要翻译： 根据本发明，提供一种用于具有排气通道的发动机的排气净化装置，该排气净化装置包括布置在排气通道中并具有上游端和下游端的催化剂，排气的净化比由 当催化剂的温度在预定的温度范围内时催化剂变得大于预定的比例，用于冷却催化剂的上游端的冷却装置，用于加热催化剂的下游端的加热装置，以及用于控制冷却装置的控制装置 以及加热装置，将该部分位于上游端和下游端之间的部分催化剂的温度保持在预定温度范围内。
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公开(公告)号：US5941067A
公开(公告)日：1999-08-24
申请号：US951783
申请日：1997-10-16
申请人： Shinya Hirota , Tatsuji Mizuno , Kazuya Kibe
发明人： Shinya Hirota , Tatsuji Mizuno , Kazuya Kibe
CPC分类号： F01N3/2046 , F01N3/0835 , F01N3/0842 , F01N3/0871 , F01N3/2006 , F01N2250/12 , F01N2570/14 , F01N2610/03 , Y02T10/26
摘要： An exhaust gas purification device, for an engine having an exhaust passage, said device comprising a catalyst arranged in the exhaust passage for purifying NO.sub.x with a reducing agent. A purification ratio of the NO.sub.x by said catalyst becomes more than a predetermined ratio when a temperature of said catalyst is within a predetermined temperature range. A predetermined amount of a reducing agent is fed to said catalyst. An amount of the reducing agent to be fed is increased with respect to the predetermined amount when a temperature of an upstream end of the catalyst is lower than a lowest value of the predetermined temperature range and a temperature of a downstream end of the catalyst is higher than the lowest value.
摘要翻译： 一种用于具有排气通道的发动机的废气净化装置，所述装置包括布置在用于通过还原剂净化NOx的排气通道中的催化剂。 当所述催化剂的温度在预定的温度范围内时，所述催化剂的NOx的净化比率大于预定的比例。 将预定量的还原剂加入到所述催化剂中。 当催化剂的上游端的温度低于预定温度范围的最低值并且催化剂的下游端的温度较高时，待进料的还原剂的量相对于预定量增加 比最低值。
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公开(公告)号：US5884476A
公开(公告)日：1999-03-23
申请号：US925025
申请日：1997-09-08
申请人： Shinya Hirota , Tatsuji Mizuno , Kazuya Kibe
发明人： Shinya Hirota , Tatsuji Mizuno , Kazuya Kibe
IPC分类号： F02M25/07 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/36 , F02D21/08 , F02D35/00 , F02D43/00
CPC分类号： F01N3/2066 , B01D53/9431 , B01D53/9495 , F02D21/08 , F02D35/0092 , F02D41/0052 , B01D2251/208 , B01D53/9418 , F01N2610/03 , F02D2200/0802 , F02D41/0055 , F02D41/0275 , Y02T10/24 , Y02T10/42 , Y02T10/47
摘要： An exhaust gas purifying device, for an engine performing a lean operation and having an EGR system capable of controlling an EGR ratio, comprises a NO.sub.X catalyst arranged in the exhaust passage capable of selectively reducing NO.sub.X in the inflowing exhaust gas, in the oxidizing atmosphere including a reducing agent, and a reducing agent injector arranged in the exhaust passage of the engine for secondarily supplying a reducing agent to the exhaust passage upstream of the NO.sub.X catalyst. The EGR system has an EGR passage connecting the exhaust passage and the intake passage of the engine, an EGR control valve arranged in the EGR passage, and an intake air control valve arranged in the intake passage upstream of an inlet of the EGR passage. The openings of the EGR control valve and the intake air control valve are controlled to control the temperature of the exhaust gas to make the temperature of the NO.sub.X catalyst within the optimum temperature range or equal to the optimum temperature. The amount of the reducing agent injected by the reducing agent injector is made smaller as the EGR ratio becomes higher.
摘要翻译： 一种排气净化装置，用于执行稀薄运转并具有能够控制EGR率的EGR系统的发动机，包括排气通道中的NOX催化剂，其能够选择性地还原流入废气中的NO x，其包括在氧化气氛中，包括 还原剂和还原剂喷射器，其布置在发动机的排气通道中，用于二次向NOX催化剂上游的排气通道供应还原剂。 EGR系统具有连接发动机的排气通路和进气通路的EGR通路，配置在EGR通路中的EGR控制阀以及配置在EGR通路的入口上游的进气通路内的进气控制阀。 控制EGR控制阀和进气控制阀的开口以控制排气的温度，使NOX催化剂的温度在最佳温度范围内或等于最佳温度。 随着EGR率变高，由还原剂喷射器喷射的还原剂的量变小。
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公开(公告)号：US5987884A
公开(公告)日：1999-11-23
申请号：US95763
申请日：1998-06-11
申请人： Kazuya Kibe , Masato Gotoh , Tatsuji Mizuno , Kouichi Akita
发明人： Kazuya Kibe , Masato Gotoh , Tatsuji Mizuno , Kouichi Akita
CPC分类号： F02D41/0275 , B01D53/9495 , F02B37/00 , F02B37/025 , F02D41/0065 , F02D41/008 , F02D41/405 , F01N13/107 , F01N2430/06 , F01N2610/03 , F02M26/15 , Y02T10/144 , Y02T10/44 , Y02T10/47
摘要： According to the invention, there is provided an exhaust gas purification device for purifying an exhaust gas discharged from an engine having cylinders including first and second cylinders. An exhaust stroke in the first cylinder is carried out next to an exhaust stroke in the second cylinder. The exhaust gas purification device comprises exhaust branch passages which are connected to the cylinders, respectively. The exhaust branch passages include first and second exhaust branch passages which are connected to the first and second cylinders, respectively. The exhaust gas purification device comprises a common exhaust passage connected to the exhaust branch passages, a catalyst positioned in the common exhaust passage for purifying an exhaust gas, and an exhaust gas recirculation passage connected to the first exhaust branch passage. The exhaust gas recirculation passage introduces the exhaust gas from the first exhaust branch passage into an intake passage which is connected to the cylinders. According to the invention, a reducing agent is fed to only the second cylinder during the power or the exhaust stroke in the second cylinder to promote the purifying operation of the catalyst when the exhaust gas is introduced into the intake passage via the exhaust gas recirculation passage.
摘要翻译： 根据本发明，提供了一种用于净化从具有包括第一和第二气缸的气缸的发动机排出的废气的排气净化装置。 在第二气缸中的排气冲程旁边执行第一气缸中的排气冲程。 废气净化装置包括分别连接到气缸的排气分支通道。 排气分支通道包括分别连接到第一和第二气缸的第一和第二排气分支通道。 废气净化装置包括连接到排气支路的公共排气通道，位于公共排气通道中用于净化废气的催化剂和连接到第一排气分支通道的废气再循环通道。 排气再循环通道将排气从第一排气分支通道引入连接到气缸的进气通道。 根据本发明，在第二气缸的动力或排气冲程期间，还原剂仅供给到第二气缸，以在排气通过排气再循环通道引入进气通道时促进催化剂的净化操作 。
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公开(公告)号：US5983630A
公开(公告)日：1999-11-16
申请号：US106269
申请日：1998-06-29
申请人： Kazuya Kibe , Masato Gotoh , Tatsuji Mizuno , Ichiro Sakata
发明人： Kazuya Kibe , Masato Gotoh , Tatsuji Mizuno , Ichiro Sakata
CPC分类号： F02D41/403 , F01N3/0842 , F02D21/08 , F02D41/047 , F02D41/3809 , F02D2250/11 , F02D41/005 , F02D41/008 , F02D41/402 , F02D41/405 , F02M26/05 , F02M26/57 , Y02T10/44
摘要： According to the present invention, there is provided a fuel injecting device for injecting fuel into a cylinder of an engine. A fuel injector injects a main fuel charge into the cylinder at a predetermined first timing, and the fuel injector injects additional fuel into the cylinder at a predetermined second timing which is different from the predetermined first timing. It is judged if an amount of fuel adhering to an inner wall of the cylinder is larger than a predetermined fuel amount when the fuel injector injects the additional fuel. The fuel injector inject the additional fuel such that an amount of fuel adhering to the inner wall of the cylinder becomes smaller than the predetermined fuel amount when it is judged that an amount of fuel adhering to the inner wall of the cylinder is larger than the predetermined fuel amount.
摘要翻译： 根据本发明，提供了一种用于将燃料喷射到发动机气缸中的燃料喷射装置。 燃料喷射器在预定的第一定时将主燃料喷射器喷射到气缸中，并且燃料喷射器以与预定的第一定时不同的预定的第二定时将附加燃料喷射到气缸中。 当燃料喷射器喷射附加燃料时，判断附着在气缸内壁的燃料量是否大于预定燃料量。 燃料喷射器喷射附加燃料，使得当判断附着在气缸内壁上的燃料量大于预定燃料量时，附着在汽缸内壁上的燃料量变得小于预定燃料量 燃料量。
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公开(公告)号：US6016788A
公开(公告)日：2000-01-25
申请号：US109417
申请日：1998-07-02
申请人： Kazuya Kibe , Masato Gotoh , Tatsuji Mizuno
发明人： Kazuya Kibe , Masato Gotoh , Tatsuji Mizuno
IPC分类号： F02M25/07 , F02B3/06 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/38 , F02D43/00
CPC分类号： F02D41/0052 , F02D41/38 , F02B3/06 , F02D2041/0017 , F02D2041/0022 , F02D2250/38 , F02D41/18 , Y02T10/42 , Y02T10/47
摘要： In a fuel injection control system, a throttle valve is provided on the intake air passage of a diesel engine and an EGR control valve is provided for recycling a part of the engine exhaust gas to the intake air system of the engine. An engine control unit (ECU) controls the intake air amount of the engine to a value corresponding to the engine operating condition by adjusting the throttle valve and the EGR control valve. Further, the ECU detects the actual intake air amount by an airflow meter disposed at the inlet of the intake air passage and determines the maximum fuel injection amount based on the engine speed and the actual intake air amount. The maximum fuel injection amount is the maximum amount of the fuel which does not generate the exhaust smoke. By restricting the actual fuel injection amount so that the actual fuel injection amount does not exceed the maximum fuel injection amount, the generation of the exhaust smoke is prevented in transient operating conditions of the engine regardless of a delay in the response of the EGR control valve.
摘要翻译： 在燃料喷射控制系统中，在柴油发动机的进气通道上设置有节流阀，并且设置有用于将发动机排气的一部分再循环到发动机的进气系统的EGR控制阀。 发动机控制单元（ECU）通过调节节流阀和EGR控制阀将发动机的进气量控制在与发动机运转状态对应的值。 此外，ECU通过设置在进气通道的入口处的气流计检测实际进气量，并且基于发动机速度和实际进气量来确定最大燃料喷射量。 最大燃料喷射量是不产生排气烟的燃料的最大量。 通过限制实际燃料喷射量使得实际燃料喷射量不超过最大燃料喷射量，在发动机的瞬态操作条件下防止排气烟的产生，而与EGR控制阀的响应延迟无关 。
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公开(公告)号：US5842341A
公开(公告)日：1998-12-01
申请号：US903706
申请日：1997-07-31
申请人： Kazuya Kibe
发明人： Kazuya Kibe
CPC分类号： F01N9/00 , B01D53/9431 , B01D53/9495 , F01N3/2066 , F01N2560/06 , F01N2610/03 , F01N2610/146 , F01N2900/08 , Y02T10/24 , Y02T10/47
摘要： An exhaust emission gas purification apparatus for an internal combustion engine is disclosed, in which a proper purification rate can be maintained even at a transient time by suppressing an excessive temperature increase of a lean NO.sub.x catalyst. In order to improve the purification efficiency of a lean NO.sub.x catalyst 307, diesel fuel constituting a hydrocarbon material capable of reducing the NO.sub.x is supplied by way of a diesel fuel injection hole 311. A basic amount of diesel fuel to be supplied is determined on the basis of a space velocity SV providing a quantity of state representing the operating conditions of the catalyst calculated from the intake air amount detected by an air flowmeter 302 and the catalyst temperature detected by an outlet exhaust gas temperature sensor 322. The basis amount of diesel fuel to be supplied is corrected based on the difference between the catalyst temperature and the inlet exhaust gas temperature detected by the inlet exhaust gas temperature sensor 321. The purification rate of the catalyst can thus be prevented from being deteriorated at a transient time.
摘要翻译： 公开了一种用于内燃机的废气净化装置，其中通过抑制贫NOx催化剂的过度升温，即使在瞬时时间也能够保持适当的净化率。 为了提高贫NOx催化剂307的净化效率，构成能够还原NO x的烃类材料的柴油燃料通过柴油燃料喷射孔311供给。供给的柴油的基本量由 提供表示由空气流量计302检测到的进气量计算出的催化剂的运行状态的状态的空间速度SV的基准以及由出口排气温度传感器322检测出的催化剂温度。柴油的基准量 基于由入口排气温度传感器321检测到的催化剂温度和入口排气温度之间的差异来校正供给。因此，可以防止催化剂的净化率在瞬时劣化。
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公开(公告)号：US07219002B2
公开(公告)日：2007-05-15
申请号：US11440111
申请日：2006-05-25
申请人： Akiyoshi Negishi , Kazuya Kibe
发明人： Akiyoshi Negishi , Kazuya Kibe
IPC分类号： F02D41/00
CPC分类号： F02D41/0007 , F02D41/005 , F02D41/2416 , F02D41/2422 , F02D41/3836 , F02D41/401 , F02D41/403 , F02D2200/0406 , F02M26/05 , F02M26/47 , Y02T10/144
摘要： An intake air pressure P1 and a target control value S1 under the condition that the internal combustion engine is in a steady operating state and the condition that the turbocharger has its supercharging efficiency set to a ratio according to the engine operating state are estimated based on engine parameters, and an intake air pressure P2 and a target control value S2 under the condition that the internal combustion engine is in the steady operating state and the condition without supercharging by the turbocharger are estimated based on the engine parameters. A target control value S0 associated with an actual intake air pressure P0 under the condition that the internal combustion engine is in a transient operating state is calculated by performing interpolation on the target control values S1, S2 based on a relation between the intake air pressures P1, P2 and the actual intake air pressure P0.
摘要翻译： 在内燃机处于稳定运行状态的条件下，进气压力P 1和目标控制值S1，基于发动机运转状态将涡轮增压器的增压效率设定为比率的条件进行估计 基于发动机参数来估计在内燃机处于稳定运行状态并且通过涡轮增压器不增压状态的条件下的发动机参数以及进气压力P 2和目标控制值S 2。 通过对目标控制值S 1，S 2进行内插来计算在内燃机处于过渡运转状态的情况下与实际进气压P 0相关联的目标控制值S 0， 进气压力P 1，P 2和实际进气压力P 0。
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