公开(公告)号：US20120167858A1

公开(公告)日：2012-07-05

申请号：US13310518

申请日：2011-12-02

申请人： Yoshie Kakuda ,  Takeshi Yokoo ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Kim Sangkyu

发明人： Yoshie Kakuda ,  Takeshi Yokoo ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Kim Sangkyu

IPC分类号： F02M25/07 ,  F02B1/12

CPC分类号： F02M25/0747 ,  F02B3/06 ,  F02B29/0406 ,  F02B2275/14 ,  F02D13/0215 ,  F02D41/0072 ,  F02M26/01 ,  F02M26/08 ,  F02M26/10 ,  F02M26/41 ,  F02M31/06 ,  F02M31/08 ,  F02M31/13 ,  Y02T10/47

摘要： The disclosure provides a diesel engine, which includes an engine body mounted in a vehicle and having a cylinder to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio ε of the cylinder being set within a range of 12:1 to 15:1, and an EGR system for allowing a part of burned gas to exist inside of the engine body cylinder when the engine body is at least in a particular operating state where an engine load and an engine speed are relatively low. The EGR system includes an EGR passage at least partially formed inside the engine body, and having a predetermined or shorter passage, an EGR control valve provided in a course of the EGR passage and for adjusting a flow rate of the burned gas inside the EGR passage, and a controller for controlling an opening of the EGR control valve.

摘要翻译： 本发明提供一种柴油发动机，其包括安装在车辆中的发动机主体，并且具有要供应含有柴油燃料作为其主要部件的燃料的气缸，几何压缩比＆ 所述缸体设定在12:1至15:1的范围内;以及EGR系统，其用于在所述发动机主体至少处于特定操作状态时允许所述一部分燃烧气体存在于所述发动机主体缸体内部，其中， 发动机负荷和发动机转速相对较低。 EGR系统包括至少部分地形成在发动机主体内部并且具有预定或较短通道的EGR通路，设置在EGR通路的过程中的EGR控制阀，并用于调节EGR通道内的燃烧气体的流量 ，以及用于控制EGR控制阀的开度的控制器。

公开(公告)号：US20110315128A1

公开(公告)日：2011-12-29

申请号：US13160827

申请日：2011-06-15

申请人： Takeshi Yokoo ,  Daisuke Shimo ,  Yoshie Kakuda ,  Kim Sangkyu ,  Kyotaro Nishimoto

发明人： Takeshi Yokoo ,  Daisuke Shimo ,  Yoshie Kakuda ,  Kim Sangkyu ,  Kyotaro Nishimoto

IPC分类号： F01L1/00 ,  F02M25/07

CPC分类号： F02D13/0273 ,  F01L2001/0537 ,  F01L2800/10 ,  F01L2820/01 ,  F01L2820/02 ,  F02B3/06 ,  F02B29/0406 ,  F02B2275/14 ,  F02D13/0246 ,  F02D13/0253 ,  F02D41/006 ,  F02D2041/001 ,  F02M26/01 ,  F02M26/08 ,  F02M26/10 ,  F02M26/28 ,  F02M31/13 ,  Y02T10/18

摘要： A diesel engine body is provided with a geometric compression ratio ε within a range of 12:1 to 15:1. The engine body has an intake valve for opening and closing an intake passage of a cylinder, an exhaust valve for opening and closing an exhaust passage of the cylinder, and an exhaust gas re-circulation passage communicating with the intake and exhaust passages and for partially re-circulating exhaust to the intake passage. During low engine load and rotation speed conditions, the exhaust valve is opened during an intake stroke, and the intake passage is choked. The exhaust valve is closed before the intake valve in the later stage of the intake stroke. An opening area SE of the exhaust valve is set so that a ratio of SE to an opening area SI of the intake valve meets a relation of: 0.01×(15−ε)+0.02≦SE/SI≦0.17

摘要翻译： 柴油发动机主体具有几何压缩比＆egr; 在12：1至15：1的范围内。 发动机本体具有用于打开和关闭气缸的进气通道的进气阀，用于打开和关闭气缸的排气通道的排气阀以及与进气和排气通道连通的排气再循环通道， 将排气再循环到进气通道。 在低发动机负荷和转速条件下，排气门在进气行程中打开，进气通道堵塞。 排气阀在进气冲程的后期阶段在进气阀之前关闭。 排气门的开口面积SE被设定为使得SE与进气门的开口面积SI的比率满足关系：0.01×（15-＆egr）+ 0.02＆nlE; SE / SI＆nlE; 0.17

公开(公告)号：US08590517B2

公开(公告)日：2013-11-26

申请号：US13160827

申请日：2011-06-15

申请人： Takeshi Yokoo ,  Daisuke Shimo ,  Yoshie Kakuda ,  Kim Sangkyu ,  Kyotaro Nishimoto

发明人： Takeshi Yokoo ,  Daisuke Shimo ,  Yoshie Kakuda ,  Kim Sangkyu ,  Kyotaro Nishimoto

IPC分类号： F02B47/08 ,  F02M25/07

CPC分类号： F02D13/0273 ,  F01L2001/0537 ,  F01L2800/10 ,  F01L2820/01 ,  F01L2820/02 ,  F02B3/06 ,  F02B29/0406 ,  F02B2275/14 ,  F02D13/0246 ,  F02D13/0253 ,  F02D41/006 ,  F02D2041/001 ,  F02M26/01 ,  F02M26/08 ,  F02M26/10 ,  F02M26/28 ,  F02M31/13 ,  Y02T10/18

摘要： A diesel engine body is provided with a geometric compression ratio ε within a range of 12:1 to 15:1. The engine body has an intake valve for opening and closing an intake passage of a cylinder, an exhaust valve for opening and closing an exhaust passage of the cylinder, and an exhaust gas re-circulation passage communicating with the intake and exhaust passages and for partially re-circulating exhaust to the intake passage. During low engine load and rotation speed conditions, the exhaust valve is opened during an intake stroke, and the intake passage is choked. The exhaust valve is closed before the intake valve in the later stage of the intake stroke. An opening area SE of the exhaust valve is set so that a ratio of SE to an opening area SI of the intake valve meets a relation of: 0.01×(15−ε)+0.02≦SE/SI≦0.17.

摘要翻译： 柴油发动机主体具有在12:1至15:1的范围内的几何压缩比ε。 发动机本体具有用于打开和关闭气缸的进气通道的进气阀，用于打开和关闭气缸的排气通道的排气阀以及与进气和排气通道连通的排气再循环通道， 将排气再循环到进气通道。 在低发动机负荷和转速条件下，排气门在进气行程中打开，进气通道堵塞。 排气阀在进气冲程的后期阶段在进气阀之前关闭。 排气门的开口面积SE被设定为使得SE与进气门的开口面积SI的比率满足0.01×（15-ε）+ 0.02 / SE / SI @ 0.17的关系。

公开(公告)号：US08887700B2

公开(公告)日：2014-11-18

申请号：US13310518

申请日：2011-12-02

申请人： Yoshie Kakuda ,  Takeshi Yokoo ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Kim Sangkyu

发明人： Yoshie Kakuda ,  Takeshi Yokoo ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Kim Sangkyu

IPC分类号： F02B47/08 ,  F02M25/07 ,  F02D41/00 ,  F02M31/08 ,  F02M31/06 ,  F02B3/06 ,  F02M31/13 ,  F02D13/02 ,  F02B29/04

CPC分类号： F02M25/0747 ,  F02B3/06 ,  F02B29/0406 ,  F02B2275/14 ,  F02D13/0215 ,  F02D41/0072 ,  F02M26/01 ,  F02M26/08 ,  F02M26/10 ,  F02M26/41 ,  F02M31/06 ,  F02M31/08 ,  F02M31/13 ,  Y02T10/47

摘要： The disclosure provides a diesel engine, which includes an engine body mounted in a vehicle and having a cylinder to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio ε of the cylinder being set within a range of 12:1 to 15:1, and an EGR system for allowing a part of burned gas to exist inside of the engine body cylinder when the engine body is at least in a particular operating state where an engine load and an engine speed are relatively low. The EGR system includes an EGR passage at least partially formed inside the engine body, and having a predetermined or shorter passage, an EGR control valve provided in a course of the EGR passage and for adjusting a flow rate of the burned gas inside the EGR passage, and a controller for controlling an opening of the EGR control valve.

摘要翻译： 本发明提供一种柴油发动机，其包括安装在车辆中的发动机主体，并且具有要供应含有柴油燃料作为其主要部件的燃料的气缸，几何压缩比＆ 所述缸体设定在12:1至15:1的范围内;以及EGR系统，其用于在所述发动机主体至少处于特定操作状态时允许所述一部分燃烧气体存在于所述发动机主体缸体内部，其中， 发动机负荷和发动机转速相对较低。 EGR系统包括至少部分地形成在发动机主体内部并且具有预定或较短通道的EGR通路，设置在EGR通路的过程中的EGR控制阀，并用于调节EGR通道内的燃烧气体的流量 ，以及用于控制EGR控制阀的开度的控制器。

公开(公告)号：US08770174B2

公开(公告)日：2014-07-08

申请号：US13207366

申请日：2011-08-10

申请人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

发明人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

IPC分类号： F02M7/00

CPC分类号： F02D41/403 ,  F01N13/0097 ,  F01N2250/02 ,  F02B1/12 ,  F02B3/06 ,  F02B29/0406 ,  F02B37/013 ,  F02D41/0057 ,  F02M26/08 ,  F02M26/10 ,  F02M26/24 ,  F02M26/25 ,  Y02T10/44 ,  Y02T10/47

摘要： This disclosure provides a method of controlling a diesel engine. The method includes adjusting an EGR ratio according to an engine load so that a cylinder O2 concentration decreases gradually to a predetermined load with an increase in the load of the engine, while the O2 concentration increases gradually above the predetermined load, operating the engine in a premix combustion mode where the fuel injection is terminated before a top dead center of a compression stroke in a low load operating range including the predetermined load where the O2 concentration is lowest and, after that, the fuel ignites and combusts, and operating in a diffusion combustion mode where the fuel injection is executed in parallel to the ignition and combustion of the fuel in an operating range where the load is higher than that of the operating range in the premix combustion mode and the O2 concentration is relatively high.

摘要翻译： 本公开提供了一种控制柴油发动机的方法。 该方法包括根据发动机负荷来调节EGR率，使得气缸O2浓度随着发动机负荷的增加而逐渐降低到预定的负荷，而O 2浓度逐渐升高到高于预定负荷，将发动机运行在 预燃燃烧模式，其中燃料喷射在低负荷运行范围内的压缩行程的上止点之前终止，其中O 2浓度最低的预定负荷，然后燃料点燃并燃烧并在扩散中运行 燃烧模式，其中在负载高于预混合燃烧模式中的操作范围的操作范围内燃料的点燃和燃烧并行执行燃料喷射，并且O 2浓度相对较高。

公开(公告)号：US20120046854A1

公开(公告)日：2012-02-23

申请号：US13207366

申请日：2011-08-10

申请人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

发明人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

IPC分类号： F02M25/07 ,  F02D28/00

CPC分类号： F02D41/403 ,  F01N13/0097 ,  F01N2250/02 ,  F02B1/12 ,  F02B3/06 ,  F02B29/0406 ,  F02B37/013 ,  F02D41/0057 ,  F02M26/08 ,  F02M26/10 ,  F02M26/24 ,  F02M26/25 ,  Y02T10/44 ,  Y02T10/47

摘要： This disclosure provides a method of controlling a diesel engine. The method includes adjusting an EGR ratio according to an engine load so that a cylinder O2 concentration decreases gradually to a predetermined load with an increase in the load of the engine, while the O2 concentration increases gradually above the predetermined load, operating the engine in a premix combustion mode where the fuel injection is terminated before a top dead center of a compression stroke in a low load operating range including the predetermined load where the O2 concentration is lowest and, after that, the fuel ignites and combusts, and operating in a diffusion combustion mode where the fuel injection is executed in parallel to the ignition and combustion of the fuel in an operating range where the load is higher than that of the operating range in the premix combustion mode and the O2 concentration is relatively high.

摘要翻译： 本公开提供了一种控制柴油发动机的方法。 该方法包括根据发动机负荷来调节EGR率，使得气缸O2浓度随着发动机负荷的增加而逐渐降低到预定的负荷，而O 2浓度逐渐升高到高于预定负荷，将发动机运行在 预燃燃烧模式，其中燃料喷射在低负荷运行范围内的压缩行程的上止点之前终止，其中O 2浓度最低的预定负荷，然后燃料点燃并燃烧并在扩散中运行 燃烧模式，其中在负载高于预混合燃烧模式中的操作范围的操作范围内燃料的点燃和燃烧并行执行燃料喷射，并且O 2浓度相对较高。

公开(公告)号：US08667952B2

公开(公告)日：2014-03-11

申请号：US13207356

申请日：2011-08-10

申请人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

发明人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

IPC分类号： F02D41/30

CPC分类号： F02D41/0007 ,  F02B37/004 ,  F02B37/013 ,  F02B37/18 ,  F02D35/02 ,  F02D41/403 ,  F02M26/05 ,  F02M26/25 ,  Y02T10/144 ,  Y02T10/44

摘要： This disclosure provides a control device for a diesel engine. When the engine is within a particular operating range with a low engine speed and a partial engine load and in a low temperature state where a cylinder temperature at a compression stroke end is lower than a predetermined temperature, a forced induction system sets a forcibly inducting level higher than a predetermined level that is higher than that in a high temperature state where the cylinder temperature is above the predetermined temperature. At least within the particular operating range, an injection control module performs a main injection where a fuel injection starts at or before a top dead center of the compression stroke to cause main combustion mainly including diffusion combustion and performs a pre-stage injection where the fuel injection is performed at least once prior to the main injection to cause pre-stage combustion before the main combustion starts.

摘要翻译： 本公开提供了一种用于柴油发动机的控制装置。 当发动机处于低发动机转速和局部发动机负荷的特定工作范围内，并且在压缩行程末端的气缸温度低于预定温度的低温状态下，强制感应系统设定强制感应水平 高于高于气缸温度高于预定温度的高温状态的预定水平。 至少在特定工作范围内，喷射控制模块执行主喷射，其中燃料喷射在压缩冲程的上止点之前或之前开始，以主要包括扩散燃烧的主要燃烧，并执行预喷射，其中燃料 在主喷射之前至少进行一次喷射以在主燃烧开始之前引起预燃烧。

公开(公告)号：US20120042849A1

公开(公告)日：2012-02-23

申请号：US13207356

申请日：2011-08-10

申请人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

发明人： Kim Sangkyu ,  Daisuke Shimo ,  Kyotaro Nishimoto ,  Yoshie Kakuda

IPC分类号： F02D41/30

CPC分类号： F02D41/0007 ,  F02B37/004 ,  F02B37/013 ,  F02B37/18 ,  F02D35/02 ,  F02D41/403 ,  F02M26/05 ,  F02M26/25 ,  Y02T10/144 ,  Y02T10/44

摘要： This disclosure provides a control device for a diesel engine. When the engine is within a particular operating range with a low engine speed and a partial engine load and in a low temperature state where a cylinder temperature at a compression stroke end is lower than a predetermined temperature, a forced induction system sets a forcibly inducting level higher than a predetermined level that is higher than that in a high temperature state where the cylinder temperature is above the predetermined temperature. At least within the particular operating range, an injection control module performs a main injection where a fuel injection starts at or before a top dead center of the compression stroke to cause main combustion mainly including diffusion combustion and performs a pre-stage injection where the fuel injection is performed at least once prior to the main injection to cause pre-stage combustion before the main combustion starts.

摘要翻译： 本公开提供了一种用于柴油发动机的控制装置。 当发动机处于低发动机转速和局部发动机负荷的特定工作范围内，并且在压缩行程末端的气缸温度低于预定温度的低温状态下，强制感应系统设定强制感应水平 高于高于气缸温度高于预定温度的高温状态的预定水平。 至少在特定工作范围内，喷射控制模块执行主喷射，其中燃料喷射在压缩冲程的上止点之前或之前开始，以主要包括扩散燃烧的主燃烧，并进行预燃喷射，其中燃料 在主喷射之前至少进行一次喷射以在主燃烧开始之前引起预燃烧。

公开(公告)号：US08682568B2

公开(公告)日：2014-03-25

申请号：US13170861

申请日：2011-06-28

申请人： Daisuke Shimo ,  Kim Sangkyu ,  Kyotaro Nishimoto ,  Shinichi Morinaga ,  Keiji Maruyama ,  Hiroshi Minamoto ,  Masayuki Tetsuno ,  Masahiro Nagoshi

发明人： Daisuke Shimo ,  Kim Sangkyu ,  Kyotaro Nishimoto ,  Shinichi Morinaga ,  Keiji Maruyama ,  Hiroshi Minamoto ,  Masayuki Tetsuno ,  Masahiro Nagoshi

IPC分类号： F02B3/12

CPC分类号： F02D41/3035 ,  F02D41/402 ,  F02D41/403 ,  F02P5/153 ,  F02P19/02 ,  Y02T10/44 ,  Y02T10/46

摘要： A diesel engine is provided, which includes an engine body to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio being set to 15:1 or below, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, and a control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve. The control module performs a main injection where the fuel is injected to cause a main combustion mainly including a diffusion combustion and performs a plurality of pre-stage injections where the fuel is injected prior to the main injection to cause a pre-stage combustion prior to the main combustion. The control module controls the injection mode of the injections to adjust a heat release rate.

摘要翻译： 提供了一种柴油发动机，其包括：发动机主体，其供给包含柴油燃料作为其主要部件的燃料，几何压缩比被设定为15:1或更低，配置在发动机主体中的燃料喷射阀， 定向到发动机体的气缸并且用于将燃料直接喷射到气缸中;以及控制模块，用于控制通过燃料喷射阀将燃料喷射到气缸中的模式。 控制模块执行主喷射，其中喷射燃料以引起主要包括扩散燃烧的主燃料，并且执行多次预喷射，其中在主喷射之前喷射燃料以在燃料喷射之前进行预燃烧， 主要燃烧。 控制模块控制喷射模式以调节放热速率。

公开(公告)号：US20120004826A1

公开(公告)日：2012-01-05

申请号：US13170861

申请日：2011-06-28

申请人： Daisuke Shimo ,  Kim Sangkyu ,  Kyotaro Nishimoto ,  Shinichi Morinaga ,  Keiji Maruyama ,  Hiroshi Minamoto ,  Masayuki Tetsuno ,  Masahiro Nagoshi

发明人： Daisuke Shimo ,  Kim Sangkyu ,  Kyotaro Nishimoto ,  Shinichi Morinaga ,  Keiji Maruyama ,  Hiroshi Minamoto ,  Masayuki Tetsuno ,  Masahiro Nagoshi

IPC分类号： F02D41/38

CPC分类号： F02D41/3035 ,  F02D41/402 ,  F02D41/403 ,  F02P5/153 ,  F02P19/02 ,  Y02T10/44 ,  Y02T10/46

摘要： A diesel engine is provided, which includes an engine body to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio being set to 15:1 or below, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, and a control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve. The control module performs a main injection where the fuel is injected to cause a main combustion mainly including a diffusion combustion and performs a plurality of pre-stage injections where the fuel is injected prior to the main injection to cause a pre-stage combustion prior to the main combustion. The control module controls the injection mode of the injections to adjust a heat release rate.

摘要翻译： 提供了一种柴油发动机，其包括：发动机主体，其供给包含柴油燃料作为其主要部件的燃料，几何压缩比被设定为15:1或更低，配置在发动机主体中的燃料喷射阀， 定向到发动机体的气缸并且用于将燃料直接喷射到气缸中;以及控制模块，用于控制通过燃料喷射阀将燃料喷射到气缸中的模式。 控制模块执行主喷射，其中喷射燃料以引起主要包括扩散燃烧的主燃料，并且执行多次预喷射，其中在主喷射之前喷射燃料以在之前进行前段燃烧 主要燃烧。 控制模块控制喷射模式以调节放热速率。