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    INTERNAL COMBUSTION ENGINE
    1.
    发明申请
    INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机

    公开(公告)号：US20090319156A1

    公开(公告)日：2009-12-24

    申请号：US12485742

    申请日：2009-06-16

    申请人： Tatsuya Fujikawa ,  Masahisa Yamakawa ,  Toshiaki Nishimoto ,  Ryo Yamamoto

    发明人： Tatsuya Fujikawa ,  Masahisa Yamakawa ,  Toshiaki Nishimoto ,  Ryo Yamamoto

    IPC分类号： F02D43/00 ,  F02B31/00 ,  F02P15/02

    CPC分类号： F02B23/104 ,  F02B31/04 ,  F02B2023/085 ,  F02B2023/108 ,  Y02T10/125

    摘要： An internal combustion engine is described herein. The engine may include a combustion chamber having a pair of intake ports arranged at one side, and an exhaust port arranged at the other side. The engine may also include a fuel injector configured to inject fuel into said combustion chamber from a side of said intake ports toward a side of said exhaust port, a variable flow restrictor capable of making flow resistance of said second intake port greater than flow resistance of said first intake port, a first spark plug arranged on a ceiling of the chamber and having its spark gap in the proximity of a center portion of said ceiling, and a second spark plug arranged on said ceiling and having its spark gap which is positioned closer to said first intake port in the axial direction of said crankshaft than said first spark plug.

    摘要翻译： 这里描述了内燃机。 发动机可以包括具有一侧设置的一对进气口的燃烧室和布置在另一侧的排气口。 发动机还可以包括燃料喷射器，该燃料喷射器被配置为从所述进气口侧朝向所述排气口的侧面将燃料喷射到所述燃烧室中，所述可变流量限制器能够使所述第二进气口的流动阻力大于流动阻力 所述第一进气口，布置在所述室的天花板上并且在所述天花板的中心部分附近具有火花隙的第一火花塞和布置在所述天花板上并具有位于更靠近的火花隙的第二火花塞 到所述第一进气口在所述曲轴的轴向方向上比所述第一火花塞。

    INTERNAL COMBUSTION ENGINE OF SPARK-IGNITION DIRECT-INJECTION TYPE AND FUEL INJECTING METHOD THEREOF
    2.
    发明申请
    INTERNAL COMBUSTION ENGINE OF SPARK-IGNITION DIRECT-INJECTION TYPE AND FUEL INJECTING METHOD THEREOF 有权
    火花点火直喷式内燃机及其燃油喷射方法

    公开(公告)号：US20090235897A1

    公开(公告)日：2009-09-24

    申请号：US12410076

    申请日：2009-03-24

    申请人： Tatsuya Fujikawa ,  Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Kouji Shishime ,  Kiyotaka Sato

    发明人： Tatsuya Fujikawa ,  Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Kouji Shishime ,  Kiyotaka Sato

    IPC分类号： F02B5/00

    CPC分类号： F02B23/104 ,  F02B17/005 ,  F02B2023/103 ,  F02B2023/106 ,  F02B2075/125 ,  F02D13/0238 ,  F02M61/1813 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/146

    摘要： A multi-hole injector directly injects fuel into a combustion chamber. Intake air is introduced into the combustion chamber through intake ports to provide tumble flow in the combustion chamber. A cavity is formed in a part of the top surface of a piston which is eccentric to the exhaust side. In the intake stroke, fuel injection ends in a downstroke of a piston. When the crank angle is 100 degrees after the top dead center in the intake stroke at which the fuel injection ends, a most downward lower spray collides with a part of the top surface of the piston which ranges on the intake side from the edge on the exhaust side of the cavity. A most upward upper spray does not come into contact with a spark plug. Thus, the fuel injection can enhance the tumble flow to promote homogeneous dispersion of fuel-air mixture in the combustion chamber.

    摘要翻译： 多孔喷射器将燃料直接喷射到燃烧室中。 吸入空气通过进气口引入燃烧室，以在燃烧室中提供滚筒流。 在与排气侧偏心的活塞的上表面的一部分中形成空腔。 在进气冲程中，燃料喷射以活塞的下冲程结束。 当燃料喷射结束的进气行程中的上止点之后的曲柄角为100度时，最下面的下喷射与活塞顶表面的一部分在入口侧的边缘上相撞 空腔的排气侧。 最向上的上喷雾器不会与火花塞接触。 因此，燃料喷射可以增强滚筒流动，以促进燃料 - 空气混合物在燃烧室中的均匀分散。

    CONTROL OF SPARK IGNITED INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    CONTROL OF SPARK IGNITED INTERNAL COMBUSTION ENGINE 审中-公开
    火花点火内燃机的控制

    公开(公告)号：US20100077990A1

    公开(公告)日：2010-04-01

    申请号：US12566561

    申请日：2009-09-24

    申请人： Kouji Shishime ,  Naoya Matsuo ,  Masahisa Yamakawa ,  Tatsuya Fujikawa ,  Takashi Youso ,  Toshiaki Nishimoto ,  Naohiro Yamaguchi ,  Mikinori Ohashi

    发明人： Kouji Shishime ,  Naoya Matsuo ,  Masahisa Yamakawa ,  Tatsuya Fujikawa ,  Takashi Youso ,  Toshiaki Nishimoto ,  Naohiro Yamaguchi ,  Mikinori Ohashi

    IPC分类号： F02B3/00 ,  F02D41/30

    CPC分类号： F02D41/3023 ,  F02D13/0261 ,  F02D41/402 ,  F02P5/152 ,  Y02T10/18 ,  Y02T10/44

    摘要： There is provided a method of controlling a spark ignited internal combustion engine having a fuel injector which injects fuel directly into its combustion chamber. The method comprises injecting a total amount of fuel into a combustion chamber by early in a compression stroke during a cylinder cycle at a first engine speed. The method further comprises injecting a first stage of fuel into the combustion chamber during a cylinder cycle by an early in a compression stroke of the cylinder cycle, and injecting a second stage of fuel by late in the compression stroke during the cylinder cycle at a second engine speed less than the first engine speed, after injecting the first stage of fuel. The amount of the second stage fuel is greater than an amount of said first stage fuel. Accordingly, the first and second stage fuels may not be pre-ignited before the spark ignition.

    摘要翻译： 提供了一种控制具有燃料喷射器的火花点火内燃机的方法，所述燃料喷射器将燃料直接喷射到其燃烧室中。 该方法包括在第一发动机转速的汽缸循环期间，在压缩行程中早期将总量的燃料喷入燃烧室。 该方法还包括在汽缸循环期间在汽缸循环的早期压缩冲程期间将第一级燃料喷射到燃烧室中，并且在汽缸循环期间在压缩冲程中稍后喷射第二级燃料 发动机转速小于第一发动机转速后，注入第一级燃油。 第二级燃料的量大于所述第一级燃料的量。 因此，第一和第二级燃料在火花点火之前可能不被预先点燃。

    Direct-injection spark-ignition engine
    4.
    发明授权
    Direct-injection spark-ignition engine 有权
    直喷式点火发动机

    公开(公告)号：US08151762B2

    公开(公告)日：2012-04-10

    申请号：US12504445

    申请日：2009-07-16

    申请人： Toshiaki Nishimoto ,  Tomomi Watanabe ,  Yoshiteru Nakayama ,  Tatsuya Fujikawa ,  Masahisa Yamakawa

    发明人： Toshiaki Nishimoto ,  Tomomi Watanabe ,  Yoshiteru Nakayama ,  Tatsuya Fujikawa ,  Masahisa Yamakawa

    IPC分类号： F02B19/04

    CPC分类号： F02B23/104 ,  F02B2023/103 ,  Y02T10/125

    摘要： Disclosed is a direct-injection spark-ignition engine designed to promote catalyst activation during cold engine operation. A fuel injection timing for a fuel injection period in an compression stroke (second fuel injection period F2) is set to allow a first fuel spray Ga injected from a first spray hole 40a to enter a cavity 34 in a piston crown surface 30, and allow a second fuel spray Gb to impinge against a region of the piston crown surface 30 located closer to an injector than the cavity 34, so as to cause the second fuel spray Gb having a lowered penetration force due to the impingement to be pulled toward the cavity 34 by a negative pressure generated in the cavity 34 as a result of passing of the first fuel spray Ga therethrough. The direct-injection spark-ignition engine can maximally hold an injected fuel spray around a spark plug to reliably stabilize a combustion state in a combustion mode for promoting catalyst activation during cold engine operation, while enhancing combustion efficiency in a homogenous combustion mode during normal engine operation.

    摘要翻译： 公开了一种直喷式火花点火发动机，设计用于在冷发动机运行期间促进催化剂活化。 在压缩行程（第二燃料喷射期间F2）中的燃料喷射期间的燃料喷射正时被设定为允许从第一喷射孔40a喷射的第一燃料喷雾Ga进入活塞冠表面30中的空腔34，并且允许 第二燃料喷雾Gb撞击位于比腔34更靠近喷射器的活塞冠表面30的区域，以便使得由于冲击而具有降低的穿透力的第二燃料喷雾Gb被拉向空腔 34由于第一燃料喷雾Ga通过而在空腔34中产生的负压。 直喷式火花点火发动机可以最大限度地保持火花塞周围的喷射燃料喷雾，以在燃烧模式下可靠地稳定燃烧状态，以促进冷机发动机运行期间的催化剂活化，同时在正常发动机中提高均质燃烧模式下的燃烧效率 操作。

    Internal combustion engine
    5.
    发明授权
    Internal combustion engine 有权
    内燃机

    公开(公告)号：US08191528B2

    公开(公告)日：2012-06-05

    申请号：US12346976

    申请日：2008-12-31

    申请人： Takashi Youso ,  Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Tatsuya Fujikawa

    发明人： Takashi Youso ,  Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Tatsuya Fujikawa

    IPC分类号： F02F3/00 ,  F02F1/42

    CPC分类号： F02B23/08 ,  F02B23/104 ,  Y02T10/125

    摘要： Disclosed is an internal combustion engine (A), which has a valve overlap period (T) during which an intake valve (1) and an exhaust valve (2) are opened, and a geometric compression ratio of 13.0 or greater. The engine (A) is designed to satisfy, at a center timing (Tc) of the valve overlap period (T), a conditional expression: S1≧S2, where S1 is a cross-sectional area of a combustion chamber (4) taken along any selected one of a plurality of mutually parallel hypothetical cutting-planes (IP) each of which extends parallel to a linear reciprocating direction (d1 or d2) of at least one of the intake and exhaust valves (1, 2) and passes through a valve head (1a or 2a) of the at least one of the valves (1, 2), and S2 is an effective opening area defined between the valve head (1a or 2a) and a corresponding valve seat (11a or 12a) in a region on an outward side of the combustion chamber (4) relative to the selected hypothetical cutting-plane (IP). The present invention can reliably improve combusted-gas scavenging efficiency and intake-air charging efficiency.

    摘要翻译： 公开了一种内燃机（A），其具有打开进气门（1）和排气阀（2）的气门重叠期（T），并且几何压缩比为13.0以上。 发动机（A）被设计成在阀重叠周期（T）的中心定时（Tc）满足条件表达式：S1≥S2，其中S1是所采用的燃烧室（4）的横截面面积 沿着平行于所述进气门和排气门（1,2）中的至少一个的直线往复运动方向（d1或d2）延伸的多个相互平行的假想切割平面（IP）中的任何一个选定的一个，并且通过 所述阀（1,2）和所述至少一个阀（S2）的阀头（1a或2a）是限定在所述阀头（1a或2a）和相应的阀座（11a或12a）之间的有效开口区域 相对于所选择的假想切割平面（IP）在燃烧室（4）的外侧的区域。 本发明可以可靠地提高燃气清除效率和进气充气效率。

    Internal combustion engine of spark-ignition direct-injection type and fuel injecting method thereof
    6.
    发明授权
    Internal combustion engine of spark-ignition direct-injection type and fuel injecting method thereof 有权
    火花点火直喷式内燃机及其燃料喷射方法

    公开(公告)号：US08196560B2

    公开(公告)日：2012-06-12

    申请号：US12410076

    申请日：2009-03-24

    申请人： Tatsuya Fujikawa ,  Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Kouji Shishime ,  Kiyotaka Sato

    发明人： Tatsuya Fujikawa ,  Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Kouji Shishime ,  Kiyotaka Sato

    IPC分类号： F02M61/14 ,  F02B5/00 ,  F02B17/00

    CPC分类号： F02B23/104 ,  F02B17/005 ,  F02B2023/103 ,  F02B2023/106 ,  F02B2075/125 ,  F02D13/0238 ,  F02M61/1813 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/146

    摘要： A multi-hole injector directly injects fuel into a combustion chamber. Intake air is introduced into the combustion chamber through intake ports to provide tumble flow in the combustion chamber. A cavity is formed in a part of the top surface of a piston which is eccentric to the exhaust side. In the intake stroke, fuel injection ends in a downstroke of a piston. When the crank angle is 100 degrees after the top dead center in the intake stroke at which the fuel injection ends, a most downward lower spray collides with a part of the top surface of the piston which ranges on the intake side from the edge on the exhaust side of the cavity. A most upward upper spray does not come into contact with a spark plug. Thus, the fuel injection can enhance the tumble flow to promote homogeneous dispersion of fuel-air mixture in the combustion chamber.

    摘要翻译： 多孔喷射器将燃料直接喷射到燃烧室中。 吸入空气通过进气口引入燃烧室，以在燃烧室中提供滚筒流。 在与排气侧偏心的活塞的上表面的一部分中形成空腔。 在进气冲程中，燃料喷射以活塞的下冲程结束。 当燃料喷射结束的进气行程中的上止点之后的曲柄角为100度时，最下面的下喷射与活塞顶表面的一部分在入口侧的边缘上相撞 空腔的排气侧。 最向上的上喷雾器不会与火花塞接触。 因此，燃料喷射可以增强滚筒流动，以促进燃料 - 空气混合物在燃烧室中的均匀分散。

    Internal combustion engine
    7.
    发明授权
    Internal combustion engine 有权
    内燃机

    公开(公告)号：US07650872B2

    公开(公告)日：2010-01-26

    申请号：US12347705

    申请日：2008-12-31

    申请人： Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Takashi Youso ,  Tatsuya Fujikawa

    发明人： Toshiaki Nishimoto ,  Masahisa Yamakawa ,  Takashi Youso ,  Tatsuya Fujikawa

    IPC分类号： F02F3/26

    CPC分类号： F02B23/104 ,  F02B17/005 ,  F02B23/0675 ,  F02B2075/125 ,  Y02T10/123 ,  Y02T10/125

    摘要： Disclosed is an internal combustion engine, which has a geometric compression ratio of 13.0 or greater, and a combustion chamber (4) configured to satisfy a condition of S/V2≦0.12 (mm−1) when a radius r of a hypothetical sphere (IS) with its center at an ignition point (CP) of a spark plug (3) is set to satisfy a condition of V2=0.15×V1, where: S (mm2) is an area of an interference surface between the hypothetical sphere (IS) and an inner wall of the combustion chamber (4) in a state when a piston (30) is at its top dead center position; V1 (mm3) is a volume of the combustion chamber 4 in the state when the piston (30) is at the top dead center position; and V2 (mm3) is a volume of a non-interference part of the hypothetical sphere (IS) which is free of interference with the inner wall of the combustion chamber (4) when the piston (30) is at the top dead center position. The internal combustion engine of the present invention can more reliably improve fuel economy.

    摘要翻译： 本发明公开了一种几何压缩比为13.0以上的内燃机和构成为满足S / V2 <= 0.12（mm-1）的条件的燃烧室（4），当假想球体的半径r （IS），其中心位于火花塞（3）的点火点（CP）处以满足V2 = 0.15×V1的条件，其中：S（mm2）是假想球体 IS）和燃烧室（4）的内壁处于活塞（30）处于其上止点位置的状态; V1（mm3）是当活塞（30）处于上止点位置时的燃烧室4的容积; 而V2（mm3）是当活塞（30）处于上死点位置时，与燃烧室（4）的内壁不相干的假想球（IS）的非干涉部分的体积 。 本发明的内燃机能够更可靠地提高燃油经济性。

    Duct structure
    10.
    发明授权
    Duct structure 有权
    管道结构

    公开(公告)号：US07779868B2

    公开(公告)日：2010-08-24

    申请号：US11822279

    申请日：2007-07-03

    申请人： Tatsuya Higashino ,  Kenichi Sakai ,  Tatsuya Fujikawa ,  Satoshi Muramatsu ,  Hiroshi Imaizumi ,  Michio Kijima

    发明人： Tatsuya Higashino ,  Kenichi Sakai ,  Tatsuya Fujikawa ,  Satoshi Muramatsu ,  Hiroshi Imaizumi ,  Michio Kijima

    IPC分类号： F15D1/04

    CPC分类号： F15D1/0005 ,  B60K13/02 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6566

    摘要： A duct structure, includes: a vessel forming therein a chamber, the vessel including: an inlet port, an outlet port, wherein the vessel is configured such that a fluid flows into the chamber through the inlet port and flows out of the chamber through the outlet port, and a swirling flow suppressing member disposed in a position inside the chamber adjacent to the outlet port, wherein the swirling flow suppressing member is configured to suppress a swirling flow from occurring to or adjacent to the outlet port.

    摘要翻译： 导管结构包括：形成腔室的容器，所述容器包括：入口端口，出口端口，其中所述容器构造成使得流体通过所述入口流入所述腔室并通过所述腔室流出所述室 排出口，以及设置在与出口相邻的室内的位置的旋流抑制构件，其中，所述旋流抑制构件被构造成抑制出口到出口附近的涡旋流。