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    An exhaust purification device of an engine
    2.
    发明公开
    An exhaust purification device of an engine 失效
    发动机的排气净化装置

    公开(公告)号：EP1113156A3

    公开(公告)日：2002-03-06

    申请号：EP01107383.0

    申请日：1996-03-21

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Asanuma, Takamitsu ,  Kihara, Tetsuro ,  Katoh, Kenji ,  Iguchi, Satoshi

    IPC分类号： F01N11/00 ,  F02D41/02 ,  B01D53/94

    CPC分类号： F02D41/0235 ,  B01D53/9495 ,  F01N3/0842 ,  F01N11/007 ,  F01N2550/03 ,  F01N2900/0422 ,  F02D41/0275 ,  F02D2200/0806 ,  F02D2200/0808 ,  Y02T10/47

    摘要： An exhaust purification device of an engine having an exhaust passage, comprising: a NOx absorbent (18) arranged in the exhaust passage (17); air-fuel ratio control means (20) for controlling the air-fuel ratio of the exhaust gas flowing into the NOx absorbent to temporarily change the air-fuel ratio of the exhaust gas flowing into the NOx absorbent from lean to rich at certain time intervals to release NOx from the NOx absorbent; deterioration detecting means (22) for detecting the degree of deterioration of the NOx absorbent; wherein the relationship between the degree of deterioration of the NOx absorbent and a rich time period during which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is made rich is stored in advance, and said air-fuel ratio control means controls said rich time period on the basis of said stored relationship to shorten said rich time period as the degree of deterioration of the NOx absorbent becomes higher.

    摘要翻译： 1。一种具有排气通路的发动机的排气净化装置，其特征在于，具备：排气通路（17）内配置的NOx吸收剂（18） 空气 - 燃料比控制装置（20），其用于控制​​流入到所述NOx吸收剂中的排气的空燃比，以使流入所述NOx吸收剂的排气的空燃比从稀到浓临时地以一定的时间间隔变化 从NO x吸收剂中释放NO x; 劣化检测装置（22），用于检测NOx吸收剂的劣化程度; 其中，所述空燃比控制装置预先存储所述NOx吸收剂的劣化程度与使流入所述NOx吸收剂的排气的空燃比变浓的浓时间之间的关系，并且所述空燃比控制装置控制 根据所述储存的关系，所述富时间段随着NOx吸收剂的劣化程度变高而缩短所述富时间段。

    A control system for an internal combustion engine
    3.
    发明公开
    A control system for an internal combustion engine 有权
    内燃机的控制系统

    公开(公告)号：EP0974747A3

    公开(公告)日：2001-10-24

    申请号：EP99114363.7

    申请日：1999-07-21

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tanaka, Hiroshi ,  Tanahashi, Toshio ,  Katoh, Kenji

    IPC分类号： F02D41/14 ,  F02D41/40 ,  F01N3/20 ,  F02D41/02

    CPC分类号： F02D41/0055 ,  F01N3/0842 ,  F01N13/009 ,  F01N13/011 ,  F01N2610/03 ,  F02D41/006 ,  F02D41/0065 ,  F02D41/0275 ,  F02D41/1443 ,  F02D41/1456 ,  F02D41/3029 ,  F02D41/405 ,  F02D2041/389 ,  F02M45/02 ,  Y02T10/44 ,  Y02T10/47

    摘要： A control system for an internal combustion engine comprising a direct cylinder fuel injection valve for directly injecting the fuel into a cylinder of an internal combustion engine. The main fuel that burns in the cylinder is injected in the latter half of the compression stroke of the cylinder, and the secondary fuel which is the ineffective fuel that does not burn in the cylinder is injected in the latter half of the exhaust stroke, the main fuel and the secondary fuel being injected toward a cavity formed in the top surface of the piston. The main fuel that is injected is deflected by the cavity to form a charge of a combustible air-fuel ratio mixture around the spark plug. When the secondary fuel is injected, the exhaust valve is opening, and the fuel that is deflected is all discharged out of the cylinder through the exhaust port. Therefore, the ineffective fuel supplied by the secondary fuel injection does not remain in the cylinder, and the output torque does not change in the combustion of the next cycle.

    摘要翻译： 一种用于内燃机的控制系统，包括用于将燃料直接喷射到内燃机的气缸中的直接气缸燃料喷射阀。 燃烧在汽缸中的主燃料在汽缸的压缩行程的后半部分被喷射，并且在汽缸的不燃烧的无效燃料的二次燃料在排气冲程的后半部分被喷射， 主燃料和辅助燃料朝向形成在活塞的顶部表面中的空腔喷射。 注入的主要燃料被空腔偏转以形成火花塞周围的可燃空燃比混合物。 当二次燃料喷射时，排气阀打开，并且偏转的燃料全部通过排气口排出汽缸。 因此，由二次燃料喷射供给的无效燃料不会残留在气缸内，在下一个循环的燃烧中输出扭矩不会变化。

    An exhaust purification device of an engine
    4.
    发明公开
    An exhaust purification device of an engine 失效
    发动机的排气净化装置

    公开(公告)号：EP1113155A2

    公开(公告)日：2001-07-04

    申请号：EP01107377.2

    申请日：1996-03-21

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Asanuma, Takamitsu ,  Kihara, Tetsuro ,  Katoh, Kenji ,  Iguchi, Satoshi

    IPC分类号： F01N11/00 ,  F02D41/02

    CPC分类号： F02D41/0235 ,  B01D53/9495 ,  F01N3/0842 ,  F01N11/007 ,  F01N2550/03 ,  F01N2900/0422 ,  F02D41/0275 ,  F02D2200/0806 ,  F02D2200/0808 ,  Y02T10/47

    摘要： An exhaust purification device of an engine having an exhaust passage, comprising: a NOx absorbent (18) arranged in the exhaust passage (17); air-fuel ratio control means (20) for controlling the air-fuel ratio of the exhaust gas flowing into the NOx absorbent to temporarily change the air-fuel ratio of the exhaust gas flowing into the NOx absorbent from lean to rich at certain time intervals to release NOx from the NOx absorbent; deterioration detecting means (22) for detecting the degree of deterioration of the NOx absorbent; wherein said NOx releasing control means controls at least one of a time period at which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is changed from lean to rich and a rich time period during which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is made rich to make one of said time periods shorter as the degree of deterioration of the NOx absorbent becomes higher, wherein said air-fuel ratio control means comprises a first air-fuel ratio control means for changing the air-fuel ratio of the exhaust gas flowing into the NOx absorbent temporarily from lean to rich at said cycle, controlled by said NOx releasing control means just so as to cause the release of NOx from the NOx absorbent and second air-fuel ratio control means for changing the air-fuel ratio of the exhaust gas flowing into the NOx absorbent temporarily from lean to rich so as to cause the NOx to be released from the NOx absorbent and to detect the degree of deterioration of the NOx absorbent by said deterioration degree detecting means.

    摘要翻译： 1。一种具有排气通路的发动机的排气净化装置，其特征在于，具备：排气通路（17）内配置的NOx吸收剂（18） 空气 - 燃料比控制装置（20），其用于控制​​流入到所述NOx吸收剂中的排气的空燃比，以使流入所述NOx吸收剂的排气的空燃比从稀到浓临时地以一定的时间间隔变化 从NO x吸收剂中释放NO x; 劣化检测装置（22），用于检测NOx吸收剂的劣化程度; 其中，所述NO X释放控制装置控制流入所述NO X吸收剂的废气的空燃比从稀到浓的时间段和其中所述空燃比的空燃比 随着NOx吸收剂的劣化程度变高，流入NOx吸收剂的废气变浓，使其中的一个时间段变短，其中，所述空燃比控制装置包括第一空燃比控制装置， 在所述循环中，由所述NOx释放控制装置控制的流入所述NOx吸收剂的排气的空燃比从所述循环从稀到浓暂时从所述NOx吸收剂和第二空燃比控制装置释放NOx 用于将流入NOx吸收剂的排气的空燃比暂时从稀到浓变化，以使NOx从NOx吸收剂中释放并检测 由所述劣化程度检测装置吸收NOx。

    Apparatus and method for purifying exhaust gas in an internal combustion engine
    6.
    发明公开
    Apparatus and method for purifying exhaust gas in an internal combustion engine 失效
    Verfahren und Vorrichtung zum Reinigen von Abgasen einer Brennkraftmaschine

    公开(公告)号：EP0828068A2

    公开(公告)日：1998-03-11

    申请号：EP97115538.7

    申请日：1997-09-08

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Katoh, Kenji ,  Gotoh, Masato ,  Asanuma, Takamitsu

    IPC分类号： F02D41/14 ,  F02D33/02 ,  F02D13/02

    CPC分类号： F02D13/0215 ,  F01L1/34 ,  F01L2201/00 ,  F01N3/0842 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/0275 ,  F02D2013/0292 ,  F02D2041/001 ,  Y02A50/2345 ,  Y02T10/18 ,  Y02T10/42

    摘要： An apparatus for, and a method of, purifying exhaust gas emitted from an internal combustion engine reduces fuel consumption under a lean operating condition and generates high torque under a rich operating condition without deteriorating the cleanness of exhaust gas and the driveability of the engine. The apparatus and method improve the durability of a variable valve timing mechanism of the engine.
    The engine operation involves lean and rich operating conditions. The variable valve timing mechanism (92) of the apparatus changes the open and close timing of at least one of intake valve (24) and exhaust valve (26) of the engine. The apparatus further has a catalytic converter (38) in an exhaust system, to occlude NOx under the lean operating condition and discharge and reduce the occluded NOx under the rich operating condition. The apparatus also has a prohibition unit (70) for prohibiting the variable valve timing mechanism (92) from changing the valve open and close timing of the valves when the air-fuel ratio of the engine is changed from lean to rich to discharge and reduce the occluded NOx.

    摘要翻译： 用于净化从内燃机排放的废气的装置和方法，在稀薄运行条件下降低燃料消耗，并且在丰富的运行条件下产生高扭矩，而不会降低排气的清洁度和发动机的驱动性。 该装置和方法提高了发动机的可变气门正时机构的耐久性。 发动机操作涉及精益和丰富的操作条件。 设备的可变气门正时机构（92）改变发动机的进气门（24）和排气门（26）中的至少一个的打开和关闭正时。 该装置还具有排气系统中的催化转化器（38），以在稀薄运行状态下封闭NOx，并且在富运行状态下排放并减少封闭的NOx。 该装置还具有禁止单元（70），用于当发动机的空燃比从稀燃变为浓度时，禁止可变气门正时机构（92）改变阀的打开和关闭正时，从而排出并减少 封闭的NOx。

    An exhaust purification device of an engine
    10.
    发明公开
    An exhaust purification device of an engine 失效
    内燃发动机的排气净化装置

    公开(公告)号：EP1113156A2

    公开(公告)日：2001-07-04

    申请号：EP01107383.0

    申请日：1996-03-21

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Asanuma, Takamitsu ,  Kihara, Tetsuro ,  Katoh, Kenji ,  Iguchi, Satoshi

    IPC分类号： F01N11/00 ,  F02D41/02

    CPC分类号： F02D41/0235 ,  B01D53/9495 ,  F01N3/0842 ,  F01N11/007 ,  F01N2550/03 ,  F01N2900/0422 ,  F02D41/0275 ,  F02D2200/0806 ,  F02D2200/0808 ,  Y02T10/47

    摘要： An exhaust purification device of an engine having an exhaust passage, comprising: a NOx absorbent arranged in the exhaust passage; air-fuel ratio control means for controlling the air-fuel ratio of the exhaust gas flowing into the NOx absorbent to temporarily change the air-fuel ratio of the exhaust gas flowing into the NOx absorbent from lean to rich at certain time intervals to release NOx from the NOx absorbent; deterioration detecting means for detecting the degree of deterioration of the NOx absorbent; wherein the relationship between the degree of deterioration of the NOx absorbent and a rich time period during which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is made rich is stored in advance, and said air-fuel ratio control means controls said rich time period on the basis of said stored relationship to shorten said rich time period as the degree of deterioration of the NOx absorbent becomes higher.