公开(公告)号：US06799551B2

公开(公告)日：2004-10-05

申请号：US10181784

申请日：2002-07-22

申请人： Kiyomi Nakakita ,  Takayuki Fuyuto ,  Kazuhisa Inagaki ,  Yoshihiro Hotta ,  Kazuhiro Akihama ,  Minaji Inayoshi ,  Ichiro Sakata

发明人： Kiyomi Nakakita ,  Takayuki Fuyuto ,  Kazuhisa Inagaki ,  Yoshihiro Hotta ,  Kazuhiro Akihama ,  Minaji Inayoshi ,  Ichiro Sakata

IPC分类号： F02B1700

CPC分类号： F02B23/0663 ,  F02B3/06 ,  F02B17/005 ,  F02B23/0621 ,  F02B23/0624 ,  F02B23/0672 ,  F02B23/101 ,  F02B31/00 ,  F02B2031/006 ,  F02B2075/125 ,  F02B2275/14 ,  F02D13/0238 ,  F02D13/0257 ,  F02D41/0002 ,  F02D41/0065 ,  F02D41/3023 ,  F02D41/3094 ,  F02D2041/0015 ,  F02D2041/389 ,  F02F3/26 ,  F02F2001/247 ,  F02M26/01 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/146 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

摘要： A state of combustion in a combustion chamber is controlled by stratifying an intake gas charge within the combustion chamber, so as to reduce amounts of harmful substances left in exhaust gas. A direct-injection type internal combustion engine in which a fuel is injected into the combustion chamber and which is arranged to stratify the intake gas charge within the combustion chamber (1) such that intake gases of different compositions exist in a central portion (13) of the combustion chamber including a position of the fuel injection, and in a peripheral portion of the combustion chamber, upon initiation of combustion of the fuel at a point of time near a terminal period of a compression stroke. The intake gases of different compositions may be intake gases having different concentrations of a specific component such as recirculated exhaust gas and the fuel.

摘要翻译： 通过对燃烧室内的进气量进行分层来控制燃烧室内的燃烧状态，以减少残留在废气中的有害物质的量。 一种直喷式内燃机，其中将燃料喷射到燃烧室中并且布置成将燃烧室（1）内的进气充气分层，使得在中心部分（13）中存在不同组成的进气， 所述燃烧室包括所述燃料喷射的位置，并且在所述燃烧室的周边部分中，在所述燃料在压缩冲程的最后期间附近的时刻开始燃烧。 不同成分的进气可以是具有不同浓度的特定成分（例如再循环废气和燃料）的进气。

公开(公告)号：US6161518A

公开(公告)日：2000-12-19

申请号：US276732

申请日：1999-03-26

申请人： Kiyomi Nakakita ,  Minaji Inayoshi ,  Kazuhisa Inagaki ,  Yoshihiro Hotta ,  Takayuki Fuyuto

发明人： Kiyomi Nakakita ,  Minaji Inayoshi ,  Kazuhisa Inagaki ,  Yoshihiro Hotta ,  Takayuki Fuyuto

IPC分类号： F02B3/06 ,  F02B23/06 ,  F02F1/24 ,  F02F3/26

CPC分类号： F02B23/0651 ,  F02B3/06 ,  F02B23/0621 ,  F02B23/0672 ,  F02B23/0696 ,  F02B2275/14 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125

摘要： A direct-injection diesel engine in which a shallow-dish type piston cavity is formed on a top surface of a piston; wherein in the vicinity of the top dead center, a squish area is defined mainly by the top surface of the piston and an inner surface of a cylinder head opposite the top surface; when a velocity of a reverse squish flow from the shallow-dish type piston cavity to the squish area, generated due to a movement of the piston and is represented by Vs, and a fuel spray velocity in the vicinity of a lip portion of the shallow-dish type piston cavity is represented by Vsp, the distance between opposite wall portions of the shallow-dish type piston cavity is set such that the ratio Vs/Vsp is not greater than 1.25; and the squish area constitutes a part of the combustion chamber.

摘要翻译： 一种直喷式柴油发动机，其中在碟形活塞的顶表面上形成浅盘型活塞腔; 其特征在于，在上止点附近，挤压区域主要由活塞的上表面和与顶面相对的气缸盖的内表面形成; 当由于活塞的运动而产生的并且由Vs表示的从浅盘型活塞空腔到挤压区域的反向挤压速度和在浅表面的唇部附近的燃料喷雾速度 盘形活塞腔由Vsp表示，浅盘型活塞腔的相对壁部分之间的距离被设定为使得比值Vs / Vsp不大于1.25; 并且挤压区域构成燃烧室的一部分。

公开(公告)号：US06994077B2

公开(公告)日：2006-02-07

申请号：US10527232

申请日：2003-09-08

申请人： Nobuki Kobayashi ,  Shizuo Sasaki ,  Taro Aoyama ,  Kouji Yoshizaki ,  Hiroki Murata ,  Yoshiki Hashimoto ,  Kazuhisa Inagaki ,  Kiyomi Nakakita ,  Shoji Nakahara ,  Yoshihiro Hotta

发明人： Nobuki Kobayashi ,  Shizuo Sasaki ,  Taro Aoyama ,  Kouji Yoshizaki ,  Hiroki Murata ,  Yoshiki Hashimoto ,  Kazuhisa Inagaki ,  Kiyomi Nakakita ,  Shoji Nakahara ,  Yoshihiro Hotta

IPC分类号： F02B47/08

CPC分类号： F02D41/0052 ,  F02B3/06 ,  F02D35/023 ,  F02D35/028 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/38 ,  F02D41/3809 ,  F02D41/402 ,  Y02T10/128 ,  Y02T10/44 ,  Y02T10/47

摘要： Cylinders of a diesel engine 1 are provided with cylinder pressure sensors 29a to 29d for detecting combustion chamber pressures. An electronic control unit (ECU) 20 of the engine selects optimum combustion parameters in accordance with a fuel injection mode of fuel injectors 10a to 10d of the engine and a combustion mode determined by the amount of EGR gas supplied from the EGR valve 35 from among a plurality of types of combustion parameters expressing the combustion state of the engine calculated based on the cylinder pressure sensor output and feedback controls the fuel injection amount and fuel injection timing so that the values of the combustion parameters match target values determined in accordance with the engine operating conditions. Due to this, the engine combustion state is controlled to the optimum state at all times regardless of the fuel injection mode or combustion mode.

摘要翻译： 柴油发动机1的气缸设置有用于检测燃烧室压力的气缸压力传感器29a至29d。 发动机的电子控制单元（ECU）20根据发动机的燃料喷射器10 a至10 d的燃料喷射模式选择最佳燃烧参数，以及由从EGR阀35供给的EGR气体量确定的燃烧模式 从表示基于气缸压力传感器输出计算出的发动机的燃烧状态的多种燃烧参数中，从燃料喷射量和燃料喷射正时控制燃烧参数的值符合根据 发动机工作条件。 由此，无论燃料喷射模式或燃烧模式如何，始终将发动机燃烧状态始终控制在最佳状态。

公开(公告)号：US20050229903A1

公开(公告)日：2005-10-20

申请号：US10527232

申请日：2003-09-08

申请人： Nobuki Kobayashi ,  Shizuo Sasaki ,  Taro Aoyama ,  Kouji Yoshizaki ,  Hiroki Murata ,  Yoshiki Hashimoto ,  Kazuhisa Inagaki ,  Kiyomi Nakakita ,  Shoji Nakahara ,  Yoshihiro Hotta

发明人： Nobuki Kobayashi ,  Shizuo Sasaki ,  Taro Aoyama ,  Kouji Yoshizaki ,  Hiroki Murata ,  Yoshiki Hashimoto ,  Kazuhisa Inagaki ,  Kiyomi Nakakita ,  Shoji Nakahara ,  Yoshihiro Hotta

IPC分类号： F02B3/06 ,  F02D21/08 ,  F02D35/02 ,  F02D41/00 ,  F02D41/30 ,  F02D41/38 ,  F02D41/40 ,  F02M7/00 ,  F02M25/07

CPC分类号： F02D41/0052 ,  F02B3/06 ,  F02D35/023 ,  F02D35/028 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/38 ,  F02D41/3809 ,  F02D41/402 ,  Y02T10/128 ,  Y02T10/44 ,  Y02T10/47

摘要： Cylinders of a diesel engine 1 are provided with cylinder pressure sensors 29a to 29d for detecting combustion chamber pressures. An electronic control unit (ECU) 20 of the engine selects optimum combustion parameters in accordance with a fuel injection mode of fuel injectors 10a to 10d of the engine and a combustion mode determined by the amount of EGR gas supplied from the EGR valve 35 from among a plurality of types of combustion parameters expressing the combustion state of the engine calculated based on the cylinder pressure sensor output and feedback controls the fuel injection amount and fuel injection timing so that the values of the combustion parameters match target values determined in accordance with the engine operating conditions. Due to this, the engine combustion state is controlled to the optimum state at all times regardless of the fuel injection mode or combustion mode.

摘要翻译： 柴油发动机1的气缸设置有用于检测燃烧室压力的气缸压力传感器29a至29d。 发动机的电子控制单元（ECU）20根据发动机的燃料喷射器10 a至10 d的燃料喷射模式选择最佳燃烧参数，以及由从EGR阀35供给的EGR气体量确定的燃烧模式 从表示基于气缸压力传感器输出计算出的发动机的燃烧状态的多种燃烧参数中，从燃料喷射量和燃料喷射正时控制燃烧参数的值符合根据 发动机工作条件。 由此，无论燃料喷射模式或燃烧模式如何，始终将发动机燃烧状态始终控制在最佳状态。

公开(公告)号：US07337766B2

公开(公告)日：2008-03-04

申请号：US10587576

申请日：2005-03-24

申请人： Shigeki Nakayama ,  Koji Kitano ,  Taro Aoyama ,  Ryo Hasegawa ,  Takashi Koyama ,  Kazuhisa Inagaki ,  Yoshifumi Wakisaka ,  Matsuei Ueda ,  Kiyomi Nakakita

发明人： Shigeki Nakayama ,  Koji Kitano ,  Taro Aoyama ,  Ryo Hasegawa ,  Takashi Koyama ,  Kazuhisa Inagaki ,  Yoshifumi Wakisaka ,  Matsuei Ueda ,  Kiyomi Nakakita

IPC分类号： F02M7/00 ,  F02D41/00

CPC分类号： F02D35/028 ,  F02D35/02 ,  F02D35/026 ,  F02D41/3035 ,  F02D41/402 ,  F02D2041/1433 ,  Y02T10/128

摘要： A gas-mixture-ignition-time estimation apparatus for an internal combustion engine estimates the temperature of a premixed gas mixture for PCCI combustion (i.e., cylinder interior temperature Tg), while relating it to the angle CA, on the basis of a state quantity of the cylinder interior gas at the time of start of compression (CAin) (heat energy of the cylinder interior gas at the time of start of compression), the amount of a change in the state quantity of the cylinder interior gas attributable to compression in a compression stroke (minute piston work), and the heat generation quantity of a cool flame generated in PCCI combustion prior to autoignition (hot flame) (cool flame heat generation quantity Aqlto). A time when the cylinder interior temperature Tg reaches a predetermined autoignition start temperature Tig is estimated as an autoignition start time (Caig) of the premixed gas mixture related to PCCI combustion. Since the cool flame heat generation quantity Oqlto is taken into consideration, the autoignition start time related to PCCI combustion can be estimated accurately.

摘要翻译： 用于内燃机的气体混合燃烧时间估计装置估计用于PCCI燃烧的预混合气体混合物的温度（即气缸内部温度Tg），同时将其与角度CA相关联，基于状态量 压缩开始时的气缸内部气体（CAin）（压缩开始时的气缸内部气体的热能），由压缩引起的气缸内部气体的状态量的变化量 压缩行程（分钟活塞），以及自燃（热焰）之前的PCCI燃烧产生的冷焰（冷焰产生量Aqlto）的发热量。 气缸内部温度Tg达到预定自燃起始温度Tig的时间被估计为与PCCI燃烧相关的预混合气体混合物的自燃起始时间（Caig）。 由于考虑了冷焰发热量Oqlto，因此可以准确地估计与PCCI燃烧有关的自燃开始时间。

公开(公告)号：US20070169748A1

公开(公告)日：2007-07-26

申请号：US10587576

申请日：2005-03-24

申请人： Shigeki Nakayama ,  Koji Kitano ,  Taro Aoyarna ,  Ryo Hasegawa ,  Takashi Koyama ,  Kazuhisa Inagaki ,  Yoshifumi Wakisaka ,  Matsuei Ueda ,  Kiyomi Nakakita

发明人： Shigeki Nakayama ,  Koji Kitano ,  Taro Aoyarna ,  Ryo Hasegawa ,  Takashi Koyama ,  Kazuhisa Inagaki ,  Yoshifumi Wakisaka ,  Matsuei Ueda ,  Kiyomi Nakakita

IPC分类号： F02M7/00 ,  F02D41/00

CPC分类号： F02D35/028 ,  F02D35/02 ,  F02D35/026 ,  F02D41/3035 ,  F02D41/402 ,  F02D2041/1433 ,  Y02T10/128

摘要： A gas-mixture-ignition-time estimation apparatus for an internal combustion engine estimates the temperature of a premixed gas mixture for PCCI combustion (i.e., cylinder interior temperature Tg), while relating it to the angle CA, on the basis of a state quantity of the cylinder interior gas at the time of start of compression (CAin) (heat energy of the cylinder interior gas at the time of start of compression), the amount of a change in the state quantity of the cylinder interior gas attributable to compression in a compression stroke (minute piston work), and the heat generation quantity of a cool flame generated in PCCI combustion prior to autoignition (hot flame) (cool flame heat generation quantity Aqlto). A time when the cylinder interior temperature Tg reaches a predetermined autoignition start temperature Tig is estimated as an autoignition start time (Caig) of the premixed gas mixture related to PCCI combustion. Since the cool flame heat generation quantity Oqlto is taken into consideration, the autoignition start time related to PCCI combustion can be estimated accurately.

摘要翻译： 用于内燃机的气体混合燃烧时间估计装置估计用于PCCI燃烧的预混合气体混合物的温度（即气缸内部温度Tg），同时将其与角度CA相关联，基于状态量 压缩开始时的气缸内部气体（CAin）（压缩开始时的气缸内部气体的热能），由压缩引起的气缸内部气体的状态量的变化量 压缩行程（分钟活塞），以及自燃（热焰）之前的PCCI燃烧产生的冷焰（冷焰产生量Aqlto）的发热量。 气缸内部温度Tg达到预定自燃起始温度Tig的时间被估计为与PCCI燃烧相关的预混合气体混合物的自燃起始时间（Caig）。 由于考虑了冷焰发热量Oqlto，因此可以准确地估计与PCCI燃烧有关的自燃开始时间。

公开(公告)号：US08353196B2

公开(公告)日：2013-01-15

申请号：US12232792

申请日：2008-09-24

申请人： Taku Ibuki ,  Shigeki Nakayama ,  Kazuhisa Inagaki ,  Matsuei Ueda

发明人： Taku Ibuki ,  Shigeki Nakayama ,  Kazuhisa Inagaki ,  Matsuei Ueda

IPC分类号： G01M15/00

CPC分类号： F02D35/02 ,  F02D41/0062 ,  F02D41/1458 ,  F02D2041/1433 ,  F02D2200/0402 ,  Y02T10/47

摘要： In a gas-mixture-nonuniformity acquisition apparatus for an internal combustion engine, the nonuniformity of fuel concentration within a gas mixture is acquired under the assumption that, in a process in which a cylinder interior gas taken into a combustion chamber of the engine and fuel injected into the combustion chamber mix together to form a gas mixture, a collision reaction repeatedly takes place within the gas mixture in such a manner that, due to collision of two gas volumes having different fuel mass ratios, respective portions of the two gas volumes mix together, and the mixed portions separate from the corresponding gas volumes and form a portion or the entirety of another gas volume having a fuel mass ratio different from those of the two gas volumes.

摘要翻译： 在用于内燃机的气体混合不均匀性获取装置中，在气体混合物内的燃料浓度不均匀性被认为是在将汽缸内部气体吸入发动机和燃料的燃烧室的过程中获得的 注入燃烧室混合在一起以形成气体混合物，在气体混合物内重复发生碰撞反应，使得由于具有不同燃料质量比的两个气体体积的碰撞，两个气体体积的相应部分混合 并且混合部分与相应的气体体积分离，并形成具有与两个气体体积不同的燃料质量比的另一个气体体积的一部分或全部。

公开(公告)号：US20100071662A1

公开(公告)日：2010-03-25

申请号：US12232792

申请日：2008-09-24

申请人： Taku Ibuki ,  Shigeki Nakayama ,  Kazuhisa Inagaki ,  Matsuei Ueda

发明人： Taku Ibuki ,  Shigeki Nakayama ,  Kazuhisa Inagaki ,  Matsuei Ueda

IPC分类号： F02M63/00

CPC分类号： F02D35/02 ,  F02D41/0062 ,  F02D41/1458 ,  F02D2041/1433 ,  F02D2200/0402 ,  Y02T10/47

摘要： In a gas-mixture-nonuniformity acquisition apparatus for an internal combustion engine, the nonuniformity of fuel concentration within a gas mixture is acquired under the assumption that, in a process in which a cylinder interior gas taken into a combustion chamber of the engine and fuel injected into the combustion chamber mix together to form a gas mixture, a collision reaction repeatedly takes place within the gas mixture in such a manner that, due to collision of two gas volumes having different fuel mass ratios, respective portions of the two gas volumes mix together, and the mixed portions separate from the corresponding gas volumes and form a portion or the entirety of another gas volume having a fuel mass ratio different from those of the two gas volumes.

摘要翻译： 在用于内燃机的气体混合不均匀性获取装置中，在气体混合物内的燃料浓度不均匀性被认为是在将汽缸内部气体吸入发动机和燃料的燃烧室的过程中获得的 注入燃烧室混合在一起以形成气体混合物，在气体混合物内重复发生碰撞反应，使得由于具有不同燃料质量比的两个气体体积的碰撞，两个气体体积的相应部分混合 并且混合部分与相应的气体体积分离，并形成具有与两个气体体积不同的燃料质量比的另一个气体体积的一部分或全部。