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4 条记录 (耗时 0.011 秒)

    Closed-loop camshaft phaser control
    1.
    发明授权
    Closed-loop camshaft phaser control 失效
    闭环凸轮轴相位器控制

    公开(公告)号：US5937806A

    公开(公告)日：1999-08-17

    申请号：US41650

    申请日：1998-03-13

    申请人： Bohdan Michael Lyko ,  Thomas Howard Lichti ,  Daniel Richard Cuatt ,  John S. Lylak, Jr. ,  Ivan Rafael Samalot

    发明人： Bohdan Michael Lyko ,  Thomas Howard Lichti ,  Daniel Richard Cuatt ,  John S. Lylak, Jr. ,  Ivan Rafael Samalot

    IPC分类号： F01L1/344 ,  F01L1/34

    CPC分类号： F01L1/344

    摘要： Internal combustion engine variable valve timing control with a camshaft phaser for varying rotational phase between a camshaft and a crankshaft in response to a control command determined through a hybrid control strategy without resort to direct temperature measurement. For a range of phase errors requiring high response compensation, a control strategy emphasizing rapid response, such as a bang-bang strategy, is deployed. For a range of phase errors requiring high accuracy compensation, a control strategy emphasizing high precision, such as a proportional-plus-integral strategy, is deployed. The phase error ranges are updated periodically to account for changes in operating conditions. The control command includes an offset which varies in response to a periodically estimated control deadband to affirmatively account for the deadband with each issued control command.

    摘要翻译： 内燃机可变气门正时控制，具有用于响应于通过混合控制策略确定的控制命令而在凸轮轴和曲轴之间改变旋转相位的凸轮轴相位器，而不需要直接测量温度。 对于需要高响应补偿的一系列相位误差，部署了强调快速响应的控制策略，例如爆炸策略。 对于需要高精度补偿的一系列相位误差，部署了强调高精度的控制策略，如比例加积分策略。 定期更新相位误差范围，以解决运行条件的变化。 控制命令包括响应于周期性估计的控制死区而变化的偏移，以肯定地说明每个发出的控制命令的死区。

    Self-sealing releasable and reusable plug
    3.
    发明授权
    Self-sealing releasable and reusable plug 失效
    自密封可拆卸和可重复使用的插头

    公开(公告)号：US06390042B1

    公开(公告)日：2002-05-21

    申请号：US09565966

    申请日：2000-05-05

    申请人： Matthew T Scott ,  Timothy M Nieves ,  Dominic Borraccia ,  Jason M Urckfitz ,  Daniel Richard Cuatt

    发明人： Matthew T Scott ,  Timothy M Nieves ,  Dominic Borraccia ,  Jason M Urckfitz ,  Daniel Richard Cuatt

    IPC分类号： B65D5116

    CPC分类号： F01L1/34406 ,  F01L1/46 ,  Y10S220/19 ,  Y10T74/2102

    摘要： An improved releasable and reusable self-sealing plug for mechanically sealing a bore. A cylindrical body is formed on its outer surface to retain radial sealing means such as an O-ring. An oversize annular cap at the outer end of the body limits ingress of the plug into a bore, and a pair of opposed, flexible limbs terminating in flanges beyond the inner end of the body are compressed radially during insertion of the plug and spring out at completion of insertion to grip the inner entrance to the bore, thus holding the O-ring and plug in the bore. Insertion may be accomplished manually without the aid of tools. The plug cannot be driven out by pressure on the bore, but is easily removed by recompression of the limbs and flanges and withdrawal of the plug by, for example, needle-nose pliers. The plug may be formed inexpensively and easily by injection molding of a suitable plastic polymer.

    摘要翻译： 一种改进的可释放和可重复使用的自密封塞，用于机械密封孔。 在其外表面上形成圆柱体以保持诸如O形环的径向密封装置。 在主体外端的尺寸较大的环形帽限制了塞子进入孔的入口，并且一对相对的，柔性的四肢终止于主体的内端之外的凸缘，在插入插头期间被径向地压缩并弹出 完成插入以夹紧孔的内部入口，从而保持O形环并将其插入孔中。 插入可以手动完成，而无需工具的帮助。 插头不能通过孔上的压力驱动，但是可以通过肢体和法兰的再压缩以及例如针嘴钳取出插头而容易地移除。 插塞可以通过注塑成型合适的塑料聚合物而廉价且容易地形成。