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    METHODS OF CONTROLLING A CAMLESS ENGINE TO PREVENT INTERFERENCE BETWEEN VALVES AND PISTONS
    2.
    发明申请
    METHODS OF CONTROLLING A CAMLESS ENGINE TO PREVENT INTERFERENCE BETWEEN VALVES AND PISTONS 审中-公开
    控制无引擎以防止阀门和活塞之间的干扰的方法

    公开(公告)号：WO2004094792A3

    公开(公告)日：2005-02-03

    申请号：PCT/US2004012151

    申请日：2004-04-19

    Applicant: STURMAN IND INC ,  BABBITT GUY ROBERT ,  BALTON CHRISTOPHER STEVENS

    Inventor： BABBITT GUY ROBERT ,  BALTON CHRISTOPHER STEVENS

    IPC: F01L9/02 ,  F01L9/04 ,  F02D13/02 ,  F02D13/04 ,  F02D41/22

    CPC classification number: F02D13/0253 ,  F01L9/02 ,  F01L9/026 ,  F01L9/04 ,  F01L2009/0413 ,  F01L2800/00 ,  F01L2800/16 ,  F02D13/0203 ,  F02D13/0261 ,  F02D13/0273 ,  F02D13/04 ,  F02D41/221 ,  F02D2041/001 ,  Y02T10/40

    Abstract: Methods of controlling a camless engine to prevent interference between engine valves and engine valves and pistons. The methods utilize one or more safe trajectories for the valves versus engine crankshaft angle. In normal operation, an engine valve control system monitors crankshaft angle and controls the engine valve so as to stay on the safe side trajectory. In the event the actual valve motion deviates excessively from the intended trajectory so as to reach or cross the safe trajectory, preventive action is taken, typically to command the engine valve to close. Safe trajectories may be stored in lookup tables, in equation form or both. In some cases a single safe trajectory for a valve may be sufficient, through in other cases, safe trajectories as a function of some engine operating conditions and environmental conditions, and in some cases may include crankshaft acceleration. Various embodiments are disclosed.

    Abstract translation: 控制无凸轮发动机以防止发动机气门和发动机气门和活塞之间的干扰的方法。 这些方法利用一个或多个安全轨迹来对应于发动机曲轴角度。 在正常操作中，发动机气门控制系统监视曲轴角度并控制发动机气门，以保持在安全侧轨迹上。 在实际的阀门运动过度偏离预期的轨迹以达到或穿过安全轨迹的情况下，通常采取预防措施来指令发动机气门关闭。 安全轨迹可以存储在查找表中，方程形式或两者。 在某些情况下，阀门的单个安全轨迹可能足以在其他情况下作为一些发动机运行条件和环境条件的函数的安全轨迹，并且在某些情况下可包括曲轴加速度。 公开了各种实施例。

    METHODS OF CONTROLLING A CAMLESS ENGINE TO PREVENT INTERFERENCE BETWEEN VALVES AND PISTONS
    5.
    发明申请
    METHODS OF CONTROLLING A CAMLESS ENGINE TO PREVENT INTERFERENCE BETWEEN VALVES AND PISTONS 审中-公开
    控制无引擎以防止阀门和活塞之间的干扰的方法

    公开(公告)号：WO2004094792A2

    公开(公告)日：2004-11-04

    申请号：PCT/US2004/012151

    申请日：2004-04-19

    Applicant: STURMAN INDUSTRIES, INC. ,  BABBITT, Guy, Robert ,  BALTON, Christopher, Stevens

    Inventor： BABBITT, Guy, Robert ,  BALTON, Christopher, Stevens

    IPC: F01L9/00

    CPC classification number: F02D13/0253 ,  F01L9/02 ,  F01L9/026 ,  F01L9/04 ,  F01L2009/0413 ,  F01L2800/00 ,  F01L2800/16 ,  F02D13/0203 ,  F02D13/0261 ,  F02D13/0273 ,  F02D13/04 ,  F02D41/221 ,  F02D2041/001 ,  Y02T10/40

    Abstract: Methods of controlling a camless engine to prevent interference between engine valves and engine valves and pistons. The methods utilize one or more safe trajectories for the valves versus engine crankshaft angle. In normal operation, an engine valve control system monitors crankshaft angle and controls the engine valve so as to stay on the safe side trajectory. In the event the actual valve motion deviates excessively from the intended trajectory so as to reach or cross the safe trajectory, preventive action is taken, typically to command the engine valve to close. Safe trajectories may be stored in lookup tables, in equation form or both. In some cases a single safe trajectory for a valve may be sufficient, through in other cases, safe trajectories as a function of some engine operating conditions and environmental conditions, and in some cases may include crankshaft acceleration. Various embodiments are disclosed.

    Abstract translation: 控制无凸轮发动机以防止发动机气门和发动机气门和活塞之间的干扰的方法。 该方法利用阀门与发动机曲轴角度的一个或多个安全轨迹。 在正常运行中，发动机气门控制系统监视曲轴角度并控制发动机气门以保持在安全侧轨迹上。 在实际的阀门运动过度偏离预期轨迹以达到或穿过安全轨迹的情况下，通常采取预防措施来指令发动机气门关闭。 安全轨迹可以存储在查找表中，方程形式或两者。 在某些情况下，阀门的单个安全轨迹可能足以在其他情况下作为一些发动机运行条件和环境条件的函数的安全轨迹，并且在某些情况下可能包括曲轴加速度。 公开了各种实施例。

    HYDRAULIC VALVE ACTUATION METHODS AND APPARATUS
    6.
    发明申请
    HYDRAULIC VALVE ACTUATION METHODS AND APPARATUS 审中-公开
    液压阀启动方法和装置

    公开(公告)号：WO2004007931A2

    公开(公告)日：2004-01-22

    申请号：PCT/US0321834

    申请日：2003-07-11

    Applicant: STURMAN IND INC ,  LAMMERT MICHAEL P ,  RAIMAO MIGUEL ANGELO ,  GIORDANO DANIEL D ,  TURNER CHRISTOPHER WAYNE ,  BALTON CHRISTOPHER STEVENS ,  BABBITT GUY ROBERT

    Inventor： LAMMERT MICHAEL P ,  RAIMAO MIGUEL ANGELO ,  GIORDANO DANIEL D ,  TURNER CHRISTOPHER WAYNE ,  BALTON CHRISTOPHER STEVENS ,  BABBITT GUY ROBERT

    IPC: F01L9/02 ,  F02D11/06

    CPC classification number: F01L9/02

    Abstract: Hydraulic engine valve actuation methods for internal combustion engines having improved energy efficiency. In hydraulic engine valve operating systems using spring returns for valve closure, the spring force is a minimum when the valve is closed and a maximum at the maximum lift. The present invention takes advantage of this difference by using a valve opening hydraulic force which is greater than the spring force when the valve is closed and less than the spring force when the valve is open at its maximum lift. The valve actuator is controlled to allow the valve, when opening, to overshoot the equilibrium condition. During the overshoot, the hydraulic actuator backfills with actuating fluid at it normal actuating pressure. When the valve velocity decays to zero or near zero, the flow of hydraulic fluid to (and from) the valve actuator may be cut off, capturing the valve substantially at the overshoot position.

    Abstract translation: 具有提高能量效率的内燃机的液压发动机气门致动方法。 在使用弹簧复位阀门关闭的液压发动机气门操作系统中，当阀门关闭时弹簧力是最小值，最大升程最大。 本发明通过使用阀开启液压力来利用该差异，该开启液压力大于当阀门关闭时的弹簧力，并且小于在其最大升程时阀门打开时的弹簧力。 控制阀致动器以允许阀在打开时超过平衡状态。 在过冲期间，液压执行器回填，其处于致动流体处于正常的致动压力。 当阀门速度衰减到零或接近于零时，液压流体（或来自）阀门致动器的流动可能被切断，基本上将阀门捕获到过冲位置。

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