Device for controlling a gas exchange valve for internal combustion engines
    33.
    发明授权
    Device for controlling a gas exchange valve for internal combustion engines 失效
    用于控制用于内燃机的气体交换阀的装置

    公开(公告)号:US06321703B1

    公开(公告)日:2001-11-27

    申请号:US09485543

    申请日:2000-02-14

    IPC分类号: F01L902

    CPC分类号: F01L9/02

    摘要: A device for controlling a gas exchange valve for internal combustion engines, having a housing including an axially movable valve member, which on an end close to the combustion chamber, has a valve sealing face that cooperates with a valve seat affixed to the housing and on an end remote from the combustion chamber, has a piston that axially separates upper and lower hydraulic working chambers from each other. The lower working chamber closer to the combustion chamber acts on the valve member in the closing direction and the upper working chamber further from the combustion chamber acts on the valve member in the opening direction. The lower working chamber continuously communicates with a high pressure source and the upper working chamber can be alternatingly filled with high pressure by way of a high pressure supply line containing an electric control valve. The upper working chamber is discharged by way of a discharge line that contains an electric control valve. When the electric control valve is without current, the control valve closes the high pressure supply line connected with the upper working chamber and when the electric valve in the discharge line is without current, the discharge line is open.

    摘要翻译: 一种用于控制用于内燃机的气体交换阀的装置,具有壳体,该壳体包括可轴向移动的阀构件,其在靠近燃烧室的一端具有阀密封面,该阀密封面与固定在壳体上的阀座配合, 远离燃烧室的一端具有将上下液压工作室彼此轴向分离的活塞。 靠近燃烧室的下部工作室在关闭方向上作用于阀构件,并且进一步从燃烧室的上部工作室沿打开方向作用在阀构件上。 下部工作室与高压源连续连通,上部工作室可以通过含有电动控制阀的高压供给管线交替地充满高压。 上部工作室通过包含电动控制阀的排放管线排出。 当电动控制阀没有电流时,控制阀关闭与上部工作室连接的高压供给管线,并且当排出管路中的电动阀没有电流时,排出管路打开。

    Process for controlling a gas exchange valve for internal combustion engines
    34.
    发明授权
    Process for controlling a gas exchange valve for internal combustion engines 失效
    用于控制用于内燃机的气体交换阀的方法

    公开(公告)号:US06321702B1

    公开(公告)日:2001-11-27

    申请号:US09485541

    申请日:2000-05-11

    IPC分类号: F01L902

    CPC分类号: F01L9/02

    摘要: A system for controlling a gas exchange valve for internal combustion engines, comprising a movable valve member in a housing which, on an end close to the combustion chamber, has a valve sealing face that cooperate with a valve seat in order to control an inlet or outlet cross section at the combustion chamber of the engine. On an end remote from the combustion chamber a working piston defines at least one hydraulic working chamber, whose alternating filling and discharging with a pressure fluid can be used to move the valve member in the opening and closing direction. The supply pressure of the pressure fluid supplied for the actuation of the gas exchange valve member is adjusted step wise as a function of current operating parameters of the engine.

    摘要翻译: 一种用于控制用于内燃机的气体交换阀的系统,包括壳体中的可移动阀构件,该壳体在靠近燃烧室的一端具有与阀座配合的阀密封面,以便控制入口或 发动机燃烧室出口横截面。 在远离燃烧室的一端,工作活塞限定了至少一个液压工作室,其中可以使用压力流体的交替填充和排出来使阀构件沿打开和关闭方向移动。 供应用于促动气体交换阀构件的压力流体的供应压力作为发动机的当前操作参数的函数被逐步地调节。