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    Internal combustion engine
    6.
    发明授权
    Internal combustion engine 失效
    内燃机

    公开(公告)号：US5762042A

    公开(公告)日：1998-06-09

    申请号：US808432

    申请日：1997-02-28

    申请人： Satoshi Yoshikawa ,  Katsunori Ueda ,  Takashi Kawabe ,  Hideyuki Oda ,  Kenji Goto ,  Nobuaki Murakami

    发明人： Satoshi Yoshikawa ,  Katsunori Ueda ,  Takashi Kawabe ,  Hideyuki Oda ,  Kenji Goto ,  Nobuaki Murakami

    IPC分类号： F02B23/10 ,  F02B29/00 ,  F02B31/00 ,  F02B31/02 ,  F02B75/12 ,  F02F1/24 ,  F02F1/42 ,  F02F3/26

    CPC分类号： F02F1/242 ,  F02B23/104 ,  F02B31/00 ,  F02F1/4214 ,  F02F3/26 ,  F02B2023/107 ,  F02B2031/006 ,  F02B2075/125 ,  F02B2275/18 ,  F02B2275/48 ,  F02F2001/241 ,  F02F2001/245 ,  Y02T10/125 ,  Y02T10/146

    摘要： An internal combustion engine includes a cylinder head having a pair of upright intake ports formed therein on opposite sides of a plug hole extending along a cylinder axis, and each intake port has an upstream-side upright part extending from the top face of the cylinder head along the cylinder axis and a downstream-side slanting part having an intake opening communicating with a combustion chamber on one side of an imaginary plane containing the cylinder axis. An upper opening of each intake port opening in the top face of the cylinder head has a peripheral edge extending along the peripheral edge of an upper opening of the plug hole, and the peripheral edge of the upstream-side upright part extends along the outer surface of a lash adjuster. When viewed in vertical section along the imaginary plane, the upstream-side upright part extends obliquely downward from the top face of the cylinder head in a direction away from the lash adjuster, and the downstream-side slanting part approaches the plug hole with decrease in distance to the combustion chamber and then extends parallel to the plug hole. The downstream-side slanting part, when viewed in vertical section perpendicular to the imaginary plane, extends away from the cylinder axis with decrease in distance to the intake opening. With the intake ports having the above overall shape and sectional shape, each intake port can be given a required cross-sectional area without increasing the dimensions of the engine, and makes it possible to form a proper intake air flow inside the combustion chamber.

    摘要翻译： 一种内燃机，具有：气缸盖，其具有沿着气缸轴线延伸的塞孔的相对侧形成的一对直立进气口，每个进气口具有从气缸盖的顶面延伸的上游侧直立部 沿着气缸轴线和具有与包含气缸轴线的假想平面的一侧上的燃烧室连通的进气口的下游侧倾斜部件。 在气缸盖的上表面中的每个进气口开口的上开口具有沿着插塞孔的上开口的周缘延伸的周边边缘，并且上游侧直立部的周缘沿着外表面延伸 的间隙调节器。 当沿着假想平面的垂直截面观察时，上游侧立柱部分从气缸盖的上表面向远离间隙调节器的方向倾斜向下延伸，并且下游侧倾斜部分随着减小 到燃烧室的距离，然后平行于插塞孔延伸。 当垂直于假想平面的垂直截面观察时，下游侧倾斜部分随着与进气口的距离减小而远离气缸轴线延伸。 在进气口具有上述整体形状和截面形状的情况下，每个进气口可以被赋予所需的横截面面积，而不增加发动机的尺寸，并且可以在燃烧室内形成适当的进气流。

    Cylinder head for an in-cylinder injection spark-ignition type internal combustion engine
    7.
    发明授权
    Cylinder head for an in-cylinder injection spark-ignition type internal combustion engine 失效
    用于缸内喷射火花点火式内燃机的气缸盖

    公开(公告)号：US5816215A

    公开(公告)日：1998-10-06

    申请号：US790890

    申请日：1997-01-29

    申请人： Satoshi Yoshikawa ,  Kazuhiro Geshi ,  Takashi Kawabe ,  Katsunori Ueda ,  Nobuaki Murakami ,  Hirokazu Komai

    发明人： Satoshi Yoshikawa ,  Kazuhiro Geshi ,  Takashi Kawabe ,  Katsunori Ueda ,  Nobuaki Murakami ,  Hirokazu Komai

    IPC分类号： F02B23/10 ,  F02B75/12 ,  F02F1/24 ,  F02F1/42 ,  F02F3/26 ,  F02B3/02 ,  F02M65/00 ,  G01M15/00

    CPC分类号： F02B23/104 ,  F02F1/4214 ,  F02F3/26 ,  F02B2023/107 ,  F02B2075/125 ,  F02B2275/18 ,  F02B2275/48 ,  F02F2001/241 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/146

    摘要： A cylinder head for an in-cylinder injection spark-ignition type internal combustion engine is formed with an injection passage for providing communication between a fuel injection valve and a combustion chamber. The injection passage includes a first and second passage sections disposed on the fuel injection valve side and on the combustion chamber side. The first passage section is formed, for example, into a truncated cone shape or a right circular cylindrical shape so that the cross sectional area decreases toward the fuel injection valve side or the area is constant over its entire length. The second passage section is formed to have the cross sectional area which increases toward the combustion chamber side. The fuel injected from the fuel injection valve flows into the combustion chamber via the injection passage having a gradually increasing cross sectional area, so that turbulence of fuel spray due to sudden divergent flow does not occur, resulting in an improved fuel combustion efficiency. Also, a seal seating face is formed on the inner face of the first passage section. By using a seal jig having a shape complementary to the seal seating face, a pressure leak test of cylinder head and a fuel leak test of fuel system can be achieved reliably and easily.

    摘要翻译： 用于缸内喷射火花点火式内燃机的气缸盖形成有用于在燃料喷射阀和燃烧室之间提供连通的喷射通道。 喷射通道包括设置在燃料喷射阀侧和燃烧室侧的第一和第二通道部分。 第一通道部分形成为例如截头圆锥形或右圆柱形，使得横截面积朝向燃料喷射阀侧减小，或者该区域在整个长度上是恒定的。 第二通道部分形成为具有朝向燃烧室侧增加的横截面面积。 从燃料喷射阀喷射的燃料经由具有逐渐增加的横截面积的喷射通道流入燃烧室，从而不会发生由于突然的流动引起的燃料喷雾的紊流，从而提高了燃料燃烧效率。 此外，在第一通道部分的内表面上形成密封座。 通过使用具有与密封座面互补的形状的密封夹具，可以可靠且容易地实现气缸盖的压力泄漏试验和燃料系统的燃料泄漏试验。

    Piston for a cylinder injection engine
    8.
    发明授权
    Piston for a cylinder injection engine 失效
    活塞用于气缸喷射发动机

    公开(公告)号：US6129065A

    公开(公告)日：2000-10-10

    申请号：US58805

    申请日：1998-04-13

    申请人： Katsunori Ueda ,  Nobuaki Murakami ,  Takashi Kawabe ,  Jun Takemura ,  Tetsuo Kataoka

    发明人： Katsunori Ueda ,  Nobuaki Murakami ,  Takashi Kawabe ,  Jun Takemura ,  Tetsuo Kataoka

    IPC分类号： F02B23/10 ,  F02B75/12 ,  F02F3/26 ,  H02B23/00

    CPC分类号： F02F3/26 ,  F02B23/104 ,  F02B2023/107 ,  F02B2075/125 ,  F02B2275/48 ,  F02F2001/241 ,  Y02T10/123 ,  Y02T10/125

    摘要： In a cylinder injection engine which includes an injection valve disposed in the vicinity of an intake port of the engine and adapted to inject fuel into the combustion chamber, a spark plug disposed closer to the center portion of the combustion chamber than the injection valve, and a piston having a cavity formed in the top face that substantially faces the injection valve and the spark plug, the cavity is formed by smoothly connecting a curved surface located below the spark plug and a curved surface located below the injection valve via a connection curved surface. The curvature .kappa..sub.1 of the curved surface located under the injection valve and the curvature .kappa..sub.2 of the curved surface located under the spark plug satisfy a relationship .kappa..sub.1

    摘要翻译： 在气缸喷射发动机中，其包括设置在发动机的进气口附近并适于将燃料喷射到燃烧室中的喷射阀，设置为比喷射阀更靠近燃烧室的中心部分的火花塞，以及 具有形成在所述顶面上的空腔的活塞，所述空腔基本上面对所述喷射阀和所述火花塞，所述空腔通过平滑地连接位于所述火花塞下方的弯曲表面和经由连接弯曲表面位于所述喷射阀下方的弯曲表面而形成 。 位于喷射阀下面的弯曲表面的曲率κ1和位于火花塞下方的曲面的曲率κ2满足关系kappa 1 k 2。

    Fuel injection control system and method for internal combustion engine
    9.
    发明授权
    Fuel injection control system and method for internal combustion engine 失效
    燃油喷射控制系统及内燃机方法

    公开(公告)号：US5596968A

    公开(公告)日：1997-01-28

    申请号：US355262

    申请日：1994-12-08

    申请人： Katsunori Ueda ,  Satoshi Yoshikawa ,  Takashi Kawabe

    发明人： Katsunori Ueda ,  Satoshi Yoshikawa ,  Takashi Kawabe

    IPC分类号： F02D41/04 ,  F02D41/32

    CPC分类号： F02D41/047

    摘要： Described are a fuel injection control system and method, which are suitable for use in an engine of the system that fuel is injected in an intake pipe. It is the object of these system and method to perform good control on the injection quantity of fuel by precisely grasping evaporation characteristics of the fuel. To achieve this object, a direct feed rate at which a quantity of fuel out of a basic injection quantity is directly fed to a combustion chamber is set and further, an indirect feed quantity of fuel, said fuel being to evaporate from an adhered liquid layer of fuel in an intake port and then to be fed into the combustion chamber, is calculated as the sum of plural partial feed quantities of different evaporation characteristics.

    摘要翻译： 描述了一种燃料喷射控制系统和方法，其适用于在燃料喷射到进气管中的系统的发动机中。 这些系统和方法的目的是通过精确地掌握燃料的蒸发特性来对燃料的喷射量进行良好的控制。 为了达到这个目的，设定将基本喷射量的燃料量直接供给到燃烧室的直接进料速度，此外，燃料的间接进料量从附着液层蒸发 的进气口中的燃料，然后被供给到燃烧室，计算为不同蒸发特性的多个部分进料量的总和。

    Engine control method
    10.
    发明授权
    Engine control method 失效
    发动机控制方式

    公开(公告)号：US5337720A

    公开(公告)日：1994-08-16

    申请号：US30237

    申请日：1993-05-26

    申请人： Nobuaki Murakami ,  Takashi Kawabe

    发明人： Nobuaki Murakami ,  Takashi Kawabe

    IPC分类号： F02D17/02 ,  F01L1/26 ,  F02D13/06 ,  F02D41/00 ,  F02D41/02 ,  F02D41/12 ,  F02D41/36 ,  F02D43/00 ,  F02D41/10

    CPC分类号： F02D41/126 ,  F01L1/267 ,  F02D41/0087 ,  F02D2041/0012 ,  F02D2250/21

    摘要： An engine control method in which a valve drive mechanism and a fuel injection device are controlled by an electronic control unit during transition between a cylinder-off state and a cylinder-on state of a variable-cylinder engine. During transition from the cylinder-on state to the cylinder-off state, the operation of a suction valve and an exhaust valve is stopped when at least one suction stroke is executed after the stoppage of fuel injection. When the operating state is restored from the cylinder-off state to the cylinder-on state, on the other hand, normal combustion is effected immediately after the valve operation is restarted following preliminary fuel injection if the engine is in a rapid-acceleration operation region. In a normal operation mode, the fuel injection is started after the valve operation is restarted. Thus, it is possible to reduce a shock which is attributable to fluctuations of the engine output torque caused during the change between the cylinder-off state and the cylinder-on state.

    摘要翻译： PCT No.PCT / JP92 / 00961 Sec。 371日期：1993年5月26日 102（e）日期1993年5月26日PCT提交1992年7月29日PCT公布。 公开号WO93 / 03268 日期：1993年2月18日。一种发动机控制方法，其中在可变气缸发动机的气缸关闭状态和气缸接通状态之间的过渡期间，由电子控制单元控制阀驱动机构和燃料喷射装置。 在从气缸打开状态到汽缸关闭状态的过渡期间，在停止燃料喷射之后执行至少一个吸入行程时，停止吸气阀和排气阀的操作。 另一方面，当操作状态从气缸关闭状态恢复到气缸打开状态时，如果发动机处于快速加速操作区域中，则在初步燃料喷射之后重新开始阀操作之后立即进行正常燃烧 。 在正常运行模式下，在重新起动阀操作之后启动燃料喷射。 因此，可以减少由于在汽缸关闭状态和气缸打开状态之间的变化期间引起的发动机输出转矩的波动引起的冲击。