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公开(公告)号：US20090223495A1
公开(公告)日：2009-09-10
申请号：US11873601
申请日：2007-10-17
CPC分类号： F02D41/0055 , F02D41/0072 , F02D41/187 , F02D41/22 , F02D2041/0067 , F02D2041/0075 , F02D2200/0414 , F02M26/25 , F02M26/43 , F02M26/44 , F02M26/47 , F02M26/48 , F02M26/49 , F02M2026/003 , Y02T10/47
摘要： A conventional technique performs valve close control of an EGR valve after an EGR-gas back flow is detected. Therefore, the conventional technique has a subject that, if an EGR-gas flow direction changes from forward flow to back flow, a back flow condition will last not only for a response delay time of a detector but also for the judgment time by calculation processing and the actuation time of the EGR control valve. There is provided a control apparatus of an EGR control valve, comprising: an EGR control valve which is provided in an exhaust gas recirculation passage to circulate exhaust gas of an combustion engine from an exhaust gas passage to an intake air passage; measurement means for measuring a flow rate of EGR gas flowing in the exhaust gas recirculation passage; and control means for receiving an input from the measurement means and closing the EGR control valve if the EGR-gas flow rate is smaller than a predetermined threshold value when the EGR gas is flowing from the exhaust side to the intake side of the internal combustion engine.
摘要翻译： 在检测到EGR气体回流之后，常规技术对EGR阀进行阀关闭控制。 因此，现有技术的一个主题是，如果EGR气体流动方向从正向流向后向流动，逆流条件不仅对于检测器的响应延迟时间而且对于通过计算处理的判断时间也将持续 以及EGR控制阀的启动时间。 提供了一种EGR控制阀的控制装置，包括：EGR控制阀，其设置在废气再循环通道中，以使内燃机的废气从排气通道循环到进气通道; 用于测量在废气再循环通道中流动的EGR气体的流量的测量装置; 以及控制装置，用于在EGR气体从排气侧流向内燃机的进气侧时，如果EGR气体流量小于预定阈值，则从测量装置接收输入并关闭EGR控制阀 。
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62.发明授权Fuel injection apparatus for and method of internal combustion engine, and fuel injection valve 有权燃油喷射装置和内燃机的方法以及燃料喷射阀公开(公告)号：US07565894B2
公开(公告)日：2009-07-28
申请号：US11518499
申请日：2006-09-11
CPC分类号： F02B31/085 , F02B2275/16 , F02B2275/48 , F02M61/145 , F02M61/1853 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： Fuel injection technology of an internal combustion engine is configured in such a manner that in a case where in inlet pipe interior of the engine is partitioned by a rectifying plate into upper and lower flow paths, a flow velocity at a center of the flow path on an upper side, and at a center of the flow path on a lower side is increased. Consequently, a flow velocity distribution of air in a cylinder diametrical direction of a valve head of an inlet valve becomes a peak value on both sides of the valve head center. Therefore, by impinging most of the injected fuel spray upon both sides of the center of the valve head, vaporization of the fuel spray can be performed with good efficiency.
摘要翻译： 内燃机的燃料喷射技术被构造成在发动机的入口管内部被整流板分隔成上下流路的情况下，流路的中心的流速在 上侧，下侧的流路的中心增大。 因此，进气阀的阀头的气缸直径方向的空气的流速分布成为阀头中心的两侧的峰值。 因此，通过将大部分注入的燃料喷雾冲击到阀头的中心的两侧，可以以高效率进行燃料喷雾的蒸发。
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公开(公告)号：US20090150052A1
公开(公告)日：2009-06-11
申请号：US12329386
申请日：2008-12-05
申请人： Kengo KUMANO , Shiro Yamaoka , Hiromu Kakuya , Yoshihiro Sukegawa
发明人： Kengo KUMANO , Shiro Yamaoka , Hiromu Kakuya , Yoshihiro Sukegawa
IPC分类号： F02D41/00
CPC分类号： F02D41/402 , F02D13/0215 , F02D13/0265 , F02D35/027 , F02D37/02 , F02D41/006 , F02D41/401 , F02D2041/001 , Y02T10/18 , Y02T10/44 , Y02T10/47
摘要： Disclosed herein is a control apparatus for a spark-ignition engine that is capable of avoiding knocking at the time of high-load operation. With this control apparatus, a residual-gas suction unit or the like is not used, an exhaust gas does not deteriorate due to injection in a compression stroke, and a thermal efficiency also does not decrease.An engine control apparatus (ECU) 20 is used for the control of a direct-injection type spark-ignition engine. During the high-load operation of the spark-ignition engine, the ECU 20 injects fuel a plurality of times. In addition, the ECU performs first fuel injection toward internal EGR that exists in a combustion chamber of the spark-ignition engine.
摘要翻译： 本文公开了一种用于火花点火发动机的控制装置，其能够在高负荷运转时避免爆震。 利用该控制装置，不使用残留气体抽吸单元等，因此在压缩冲程中注入不会使废气劣化，并且热效率也不降低。 发动机控制装置（ECU）20用于直喷式火花点火式发动机的控制。 在点火式发动机的高负载运转中，ECU20多次喷射燃料。 此外，ECU对存在于火花点火式发动机的燃烧室内的内部EGR进行第一次燃料喷射。
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公开(公告)号：US20080295590A1
公开(公告)日：2008-12-04
申请号：US12126429
申请日：2008-05-23
IPC分类号： G01F1/692
CPC分类号： G01F1/688 , G01F1/6983
摘要： A thermal type flow meter has a first heating resistor, a second heating resistor for blocking heat transfer from the first heating resistor to a console, a temperature measuring resistor interposed between the two heating resistors, and a controller for calculating a flow rate unrelated to temperatures of fluid from temperatures of the resistors and currents supplied to the heating resistors.
摘要翻译： 热式流量计具有第一加热电阻器，用于阻止从第一加热电阻器传递到控制台的第二加热电阻器，插入在两个加热电阻器之间的温度测量电阻器，以及用于计算与温度无关的流量的控制器 的液体从电阻器的温度和提供给加热电阻器的电流。
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公开(公告)号：US20070036694A1
公开(公告)日：2007-02-15
申请号：US11493568
申请日：2006-07-27
申请人： Akira Nishioka , Kiyoshi Amou , Yoshihiro Sukegawa , Takehiko Kowatari , Yasunaga Hamada , Ikuhisa Hamada , Toshifumi Mukai , Yoshinori Taguchi , Hiroshi Yokota
发明人： Akira Nishioka , Kiyoshi Amou , Yoshihiro Sukegawa , Takehiko Kowatari , Yasunaga Hamada , Ikuhisa Hamada , Toshifumi Mukai , Yoshinori Taguchi , Hiroshi Yokota
CPC分类号： F01N3/2066 , B01D53/90 , B01D53/9431 , B01D2251/2067 , B01F3/04049 , B01F5/0268 , B01F5/0473 , F01N3/035 , F01N3/106 , F01N3/108 , F01N3/2053 , F01N13/0097 , F01N2240/20 , F01N2240/40 , F01N2570/14 , F01N2610/02 , F01N2610/102 , F01N2610/1453 , Y02A50/2344 , Y02T10/24
摘要： An exhaust aftertreatment system comprises an injector for injecting urea water into an exhaust duct, and a denitration catalyst disposed downstream of the injector with respect to a flow of exhaust gas. The exhaust aftertreatment system reduces nitrogen oxides in the exhaust gas by the denitration catalyst while using ammonia produced from the urea water injected from the injector. The urea water is injected along a direction of the flow of the exhaust gas within the exhaust duct, and a porous plate is disposed in multiple stages in a space of the exhaust duct such that droplets of the injected urea water impinge against the porous plate before reaching a wall surface of the exhaust duct. A surface of the porous plate subjected to the impingement of the droplets is arranged to face downstream with respect to the flow of the exhaust gas. Deposition of the urea water is prevented by causing film boiling when the droplets impinge against the porous plate, and the urea water reflected by the porous plate is uniformly dispersed into the exhaust gas. Thus, the urea water is uniformly dispersed into the exhaust gas without increasing a pressure loss of the exhaust gas. The urea water is prevented from depositing on the wall surface and producing a precipitate in the form of a solid.
摘要翻译： 排气后处理系统包括用于将尿素水喷射到排气管道中的喷射器，以及设置在喷射器相对于废气流的下游的脱硝催化剂。 排气后处理系统使用由喷射器注入的尿素水产生的氨，还原脱硝催化剂，还原废气中的氮氧化物。 尿素水沿着排气管道内的废气流动的方向喷射，多孔板在排气管道的空间内以多级设置，使得喷射的尿素水的液滴在 到达排气管的壁面。 受到液滴撞击的多孔板的表面被布置成面向排气相对的下游。 当液滴撞击多孔板时，通过使膜沸腾来防止尿素水的沉积，由多孔板反射的尿素水均匀地分散在废气中。 因此，尿素水均匀地分散在排气中，而不会增加排气的压力损失。 防止尿素水沉积在壁表面上并产生固体形式的沉淀。
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公开(公告)号：US20070000473A1
公开(公告)日：2007-01-04
申请号：US11433351
申请日：2006-05-15
申请人： Shiro Yamaoka , Yoshihiro Sukegawa , Noboru Tokuyasu , Shinya Igarashi , Katsuaki Fukatsu , Takashi Kadohiro , Hidefumi Iwaki , Takanobu Ichihara
发明人： Shiro Yamaoka , Yoshihiro Sukegawa , Noboru Tokuyasu , Shinya Igarashi , Katsuaki Fukatsu , Takashi Kadohiro , Hidefumi Iwaki , Takanobu Ichihara
CPC分类号： F02D41/307 , F02D41/0007 , F02D41/0072 , F02D41/107 , F02D41/1456 , F02D41/18 , F02D41/222 , F02D41/3035 , F02D41/3076 , F02D2041/0075 , F02D2200/501 , F02D2200/602 , F02D2250/28 , F02M26/05 , F02M26/47 , Y02T10/47
摘要： In an engine having a premixed combustion mode, an EGR flow rate estimating precision is deteriorated at a transient time, and a torque fluctuation and an exhaust gas deterioration are caused. In an engine control apparatus having a premixed combustion mode and a diffusion combustion mode, a sensor detecting an EGR flow rate is arranged in an EGR flow path of the engine, and a cylinder state of the engine is estimated by using an output value of the sensor detecting the EGR flow rate at a time when the engine is in the premixed combustion mode. Since it is possible to accurately detect the EGR flow rate at the transient time and feed back the EGR flow rate at a high response, it is possible to prevent a torque fluctuation and an exhaust gas deterioration.
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67.发明授权公开(公告)号：US06880519B2
公开(公告)日：2005-04-19
申请号：US10403031
申请日：2003-04-01
IPC分类号： F02M37/00 , F02B17/00 , F02B23/10 , F02B31/00 , F02B31/08 , F02B75/12 , F02D41/02 , F02D41/04 , F02D41/06 , F02D41/16 , F02D41/30 , F02D41/34 , F02D41/40 , F02D43/00 , F02F1/24 , F02F1/42 , F02F3/26 , F02M45/02 , F02M51/06 , F02M51/08 , F02M61/14 , F02M61/16 , F02M61/18 , F02M69/04 , F02B3/10
CPC分类号： F02M69/045 , F02B17/005 , F02B31/085 , F02B2075/125 , F02B2275/48 , F02D41/0255 , F02D41/062 , F02D41/16 , F02D41/3029 , F02D41/3076 , F02D41/402 , F02F1/4214 , F02F2001/245 , F02M61/162 , F02M61/1806 , Y02T10/12 , Y02T10/123 , Y02T10/125 , Y02T10/146 , Y02T10/26 , Y02T10/44
摘要： With a cylinder direct injection engine in which fuel is injected directly into combustion chambers and air-fuel mixture is guided by an air flow, it is difficult to secure combustion stability under low engine speed and low load conditions such as during idling. Furthermore, there are needs for improvement of emission characteristics and fuel economy in other operation modes as well. An engine according to the invention injects fuel while dividing the same in plural parts during a compression stroke. The first injection forms a lean air-fuel mixture around an ignition plug, and the second injection makes a flammable air-fuel mixture reach an area around the ignition plug. This ensures efficient stratified combustion and allows improvement in emission and fuel economy performance.
摘要翻译： 使用气缸直喷式发动机，其中燃料直接喷入燃烧室，空气 - 燃料混合物由空气流引导，难以在低发动机转速和低负载条件下如空转期间确保燃烧稳定性。 此外，还需要改进其他运行模式下的排放特性和燃油经济性。 根据本发明的发动机在压缩冲程期间将燃料分成多个部分喷射燃料。 第一次喷射在火花塞周围形成稀薄的空气燃料混合物，第二次喷射使得可燃空气燃料混合物到达火花塞周围的区域。 这确保了有效的分层燃烧，并且可以改善排放和燃油经济性能。
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