公开(公告)号：US20100000493A1

公开(公告)日：2010-01-07

申请号：US12497314

申请日：2009-07-02

申请人： Toshiaki NISHIMOTO ,  Naoya WATANABE ,  Kazuhiro NAGATSU ,  Masatoshi HIDAKA ,  Hiroaki ABE

发明人： Toshiaki NISHIMOTO ,  Naoya WATANABE ,  Kazuhiro NAGATSU ,  Masatoshi HIDAKA ,  Hiroaki ABE

IPC分类号： F02B19/00 ,  F02B5/00 ,  F02F3/26

CPC分类号： F02B23/104 ,  F02B2075/125 ,  F02F3/26 ,  Y02T10/123 ,  Y02T10/125

摘要： There is provided a spark ignited internal combustion engine having a geometric compression ratio of 13.0 or greater. The engine comprises combustion chambers having a cylinder stroke volume of 0.3 liter or greater, with the spark plug in the chamber ceiling having its spark point in the combustion chamber, and a cavity being formed on the top surface of the piston. At least part of the cavity defines a spherical surface that a hypothetical sphere having its center at the spark point contacts when the piston is at top dead center. The cavity is formed so that V2/V1≧0.31, where V1 is top-dead-center combustion chamber volume, and V2 is the volume of the part of the hypothetical sphere not interfering with the combustion chamber floor or ceiling at top dead center. The flame thus spreads with less interference, shortening combustion duration and reducing fuel consumption.

摘要翻译： 提供几何压缩比为13.0以上的火花点火式内燃机。 发动机包括具有0.3升或更大的汽缸行程体积的燃烧室，其中室顶部中的火花塞在燃烧室中具有其火花点，并且在活塞的顶表面上形成空腔。 空腔的至少一部分限定了球形表面，当活塞处于上止点时，具有其在火花点处的中心的假想球接触。 空腔形成为V2 / V1> = 0.31，其中V1是上死点燃烧室体积，V2是假想球体部分的体积，不干扰上死点处的燃烧室地板或天花板 。 因此，火焰以较少的干扰扩散，缩短燃烧持续时间并降低燃料消耗。

公开(公告)号：US20090217906A1

公开(公告)日：2009-09-03

申请号：US12390107

申请日：2009-02-20

申请人： Toshiaki NISHIMOTO ,  Naohiro YAMAGUCHI ,  Masahisa YAMAKAWA ,  Takashi YOUSO ,  Kouji SHISHIME ,  Hiroaki ABE ,  Hiroki MORIMOTO ,  Naoya MATSUO ,  Naoya WATANABE

发明人： Toshiaki NISHIMOTO ,  Naohiro YAMAGUCHI ,  Masahisa YAMAKAWA ,  Takashi YOUSO ,  Kouji SHISHIME ,  Hiroaki ABE ,  Hiroki MORIMOTO ,  Naoya MATSUO ,  Naoya WATANABE

IPC分类号： F02D13/00 ,  F01L1/34

CPC分类号： F02D13/023 ,  F01L2820/032 ,  F02D41/0002 ,  F02D41/006 ,  F02D41/0065 ,  F02D2041/002 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

摘要： A system and method of controlling an internal combustion engine are provided. The method may include closing said intake valve at a timing in a first range, which is before a maximum charge closing timing with which an amount of air inducted into said cylinder from said air intake passage would be maximized at a given engine speed, during a cylinder cycle when a desired amount of air to be inducted into said cylinder is less than or equal to a predetermined air amount at the given engine speed. The method may further include closing said intake valve at a timing in a second range, which is after said maximum charge closing timing and separated from said first range during a cylinder cycle, when a desired amount of air to be inducted into said cylinder is greater than said predetermined air amount at the given engine speed.

摘要翻译： 提供了一种控制内燃机的系统和方法。 该方法可以包括在第一范围内的定时关闭所述进气门，该第一范围在最大充气关闭正时之前，在最大充气关闭正时期间，在给定发动机转速期间，从所述进气通道引入所述气缸的空气量将最大化 当要被引入所述气缸的期望量的空气小于或等于在给定发动机速度下的预定空气量时，气缸循环。 该方法可以进一步包括在所述最大充气关闭正时之后的第二范围内的时刻关闭所述进气门，并且在气缸循环期间与所述第一范围分离时，当要被引入所述气缸的所需量的空气更大时 比在给定发动机转速下的所述预定空气量。