Intake system for an internal combustion engine
    22.
    发明授权
    Intake system for an internal combustion engine 失效
    内燃机进气系统

    公开(公告)号:US5855194A

    公开(公告)日:1999-01-05

    申请号:US835622

    申请日:1997-04-09

    IPC分类号: F02B31/02 F02B31/08 F02F1/42

    摘要: According to the present invention, each of the cylinders of an engine is provided with a first and a second swirl ports for generating a swirl of intake air in the cylinder. The second swirl port is located at the position downstream of the first swirl port with respect to the direction of swirl generated by the first intake port. The helical air passages of the first and the second intake port have a bottom which opens to the cylinder and an upper wall facing the bottom and an end wall defining the end of the helical air passage. The angle .theta..sub.1 between the upper wall and the end wall of the helical air passage of the first (upstream) intake port is formed smaller than the same (the angle .theta..sub.2) of the helical air passage of the second (downstream) intake port. By forming the angle .theta..sub.1 small, intake air flowing through the first intake port rotates a large amount before it flows into the cylinder and a strong swirl is formed by the intake air from the first intake port. On the other hand, since the angle .theta..sub.2 is relatively large, intake air flowing through the second intake port flows into the cylinder before it rotates sufficiently. Therefore, the intake air from the second intake port flows into the cylinder without interfering with the swirl in the cylinder. Thus, the flow resistance of the second intake port decreases.

    摘要翻译: 根据本发明,发动机的每个气缸设置有用于在气缸中产生进气的涡流的第一和第二涡旋口。 第二旋流口相对于由第一进气口产生的涡流的方向位于第一涡流口的下游位置。 第一和第二进气口的螺旋空气通道具有通向气缸的底部和面向底部的上壁和限定螺旋空气通道的端部的端壁。 第一(上游)进气口的螺旋空气通道的上壁和端壁之间的角度θ1形成为小于第二(下游)进气口的螺旋空气通道的角度θ1 。 通过形成角度θ1,流过第一进气口的进气在其流入气缸之前大量旋转,并且来自第一进气口的进气形成强烈的涡流。 另一方面,由于角度θ2相对较大,流过第二进气口的进气在其充分旋转之前流入气缸。 因此,来自第二进气口的吸入空气流入气缸而不影响汽缸内的涡流。 因此,第二进气口的流动阻力减小。

    Sequential turbocharger system for an internal combustion engine
    24.
    发明授权
    Sequential turbocharger system for an internal combustion engine 失效
    用于内燃机的顺序涡轮增压系统

    公开(公告)号:US5142866A

    公开(公告)日:1992-09-01

    申请号:US717881

    申请日:1991-06-17

    摘要: A sequential turbocharger system for an internal combustion engine with an exhaust gas recirculation system. The sequential system includes a large-volume turbocharger and a small-volume turbocharger, which are arranged in series in the direction of the flow of gases. A bypass passageway is connected to an exhaust pipe to thereby bypass the turbine of the small-volume turbocharger, and an exhaust switching valve is arranged in the bypass passageway for controlling the flow of exhaust gas to the turbine of the small-volume turbocharger. The EGR system includes an exhaust gas recirculation passageway for introducing an amount of exhaust gas into the intake pipe of the engine. The exhaust gas for recirculation is taken out from the intake pipe at a position located between the turbines of the small-volume and large-volume turbochargers.

    摘要翻译: 一种用于具有废气再循环系统的内燃机的顺序涡轮增压器系统。 顺序系统包括大体积涡轮增压器和小容量涡轮增压器,其沿气体流动的方向串联布置。 旁通通路连接到排气管,从而绕过小体积涡轮增压器的涡轮,并且排气切换阀布置在旁路通道中,用于控制到小容量涡轮增压器的涡轮机的排气流。 EGR系统包括用于将排气量引入发动机的进气管中的废气再循环通道。 用于再循环的废气在位于小体积涡轮增压器和大容积涡轮增压器的涡轮机之间的位置处从进气管中取出。

    Method of determining fluctuations in indicated mean effective pressure
of engine and apparatus therefor
    27.
    发明授权
    Method of determining fluctuations in indicated mean effective pressure of engine and apparatus therefor 失效
    确定发动机及其设备的平均有效压力波动的方法

    公开(公告)号:US4525781A

    公开(公告)日:1985-06-25

    申请号:US305352

    申请日:1981-09-24

    摘要: A method of and an apparatus for measuring fluctuations in the indicated mean effective pressure of an engine from a deviation of the mean pressure or from an unbiased variance (mean square) of the mean pressure obtained from the deviation in the mean pressure by utilizing a deviation of the mean pressure becomes substantially identical with a deviation of the indicated mean effective pressure or an unbiased variance (mean square) of this mean pressure becomes substantially identical with an unbiased variance (mean square) of the indicated mean effective pressure in a cylinder of the engine. This deviation of the mean pressure is calculated from detected changes in the rotational speed of the engine.

    摘要翻译: 根据平均压力的偏差或平均压力偏差的平均偏差的偏差(均方根),通过利用偏差来测量发动机指示的平均有效压力的波动的方法和装置, 平均压力的平均压力的变化基本上与所指示的平均有效压力的偏差或该平均压力的无偏差方差(均方根)变得基本相同,该平均压力与所述平均压力的圆柱体中的所示平均有效压力的无偏差方差 发动机。 根据检测到的发动机转速的变化计算平均压力的这种偏差。

    Device And Method For Controlling Engine
    28.
    发明申请
    Device And Method For Controlling Engine 有权
    控制发动机的装置和方法

    公开(公告)号:US20070213919A1

    公开(公告)日:2007-09-13

    申请号:US10594217

    申请日:2005-04-26

    IPC分类号: G06F19/00

    摘要: In a device for controlling an engine, comprising combustion noise suppressor for suppressing combustion noise of a combustion chamber and controller for controlling the combustion noise suppressor, the device further includes control amount setter for setting a control amount of the combustion noise suppressor so that target combustion noise characteristics corresponding to a required amount of acceleration or deceleration exhibit a slower change in combustion noise than combustion noise characteristics corresponding to output characteristics of the engine over before and after acceleration or deceleration, wherein the controller controls the combustion noise suppressor according to the control amount set by the control amount setter. On the event of a rapid acceleration, a rapid change in the combustion noise in the initial stage of the acceleration is prevented to improve driving comfort.

    摘要翻译: 在用于控制发动机的装置中,包括用于抑制燃烧室的燃烧噪声的燃烧噪声抑制器和用于控制燃烧噪声抑制器的控制器,该装置还包括控制量设定器,用于设定燃烧噪声抑制器的控制量,使得目标燃烧 对应于所需加速或减速量的噪声特性与加速或减速前后的发动机的输出特性对应的燃烧噪声特性相比燃烧噪声的变化较慢,其中控制器根据控制量控制燃烧噪声抑制器 由控制量设定器设定。 在快速加速的情况下,防止在加速的初始阶段的燃烧噪声的快速变化,以提高驾驶舒适性。