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10 条记录 (耗时 0.02 秒)

    Apparatus for driving a piezoelectric actuator
    1.
    发明授权
    Apparatus for driving a piezoelectric actuator 失效
    用于驱动压电致动器的装置

    公开(公告)号：US5130598A

    公开(公告)日：1992-07-14

    申请号：US629063

    申请日：1990-12-14

    申请人： Michael R. Verheyen ,  James A. Antone ,  Liliana Grajales

    发明人： Michael R. Verheyen ,  James A. Antone ,  Liliana Grajales

    IPC分类号： F02M51/06 ,  F02D41/20 ,  H01L41/04 ,  H01L41/09 ,  H02N2/06

    CPC分类号： F02D41/2096 ,  H01L41/042 ,  H02N2/067

    摘要： An apparatus is provided for controllably connecting and disconnecting a piezoelectric actuator to and from an energy source to effect the displacement of a piezoelectric actuator for a fuel injector. Precise control of the timing and duration of the piezoelectric actuator is necessary to ensure that a proper quantity of fuel is delivered to each cylinder of an internal combustion engine. A charging and discharging means monitors the voltage level of the piezoelectric actuator, and the charging and discharging current of the piezoelectric actuator. Further, a smoothing means aids in leveling the charging and discharging current to better approximate a constant current to control the piezoelectric actuator providing a precise quantity of fuel to be delivered.

    摘要翻译： 提供了一种用于将压电致动器可控地连接和断开与能量源的装置，以实现用于燃料喷射器的压电致动器的位移。 精确控制压电致动器的时间和持续时间是必要的，以确保将适量的燃料输送到内燃机的每个气缸。 充电和放电装置监视压电致动器的电压电平以及压电致动器的充电和放电电流。 此外，平滑装置有助于调平充电和放电电流，以更好地近似恒定电流，以控制压电致动器，从而提供精确量的要输送的燃料。

    Glow plug alternator control
    6.
    发明授权
    Glow plug alternator control 失效
    辉光插头交流发电机控制

    公开(公告)号：US4858576A

    公开(公告)日：1989-08-22

    申请号：US231422

    申请日：1987-11-27

    申请人： James R. Jeffries ,  Michael R. Verheyen

    发明人： James R. Jeffries ,  Michael R. Verheyen

    IPC分类号： F02B3/06 ,  F02P19/02

    CPC分类号： F02P19/025 ,  F02P19/027 ,  F02B3/06

    摘要： The present invention pertains to a control system for igniting devices (28,30,32,34,36,38) used in an internal combustion engine (24). In order to ignite alcohol fuel in a diesel engine, the fuel must be heated before or during compression. Glow plugs (28,30,32,34,36,38) conveniently provide heat, but have a short life in such continuous applications. Glow plugs must be accurately controlled to prevent overheating, which leads to open-circuiting. Individual constant voltage controls attempt to provide this function, but are only moderately successful. They are costly and complex, and provide only moderate protection from overheating. Since glow plug resistance correlates to glow plug temperature, resistance control provides better protection against glow plug overheating. Therefore, an apparatus (20) monitors the resistance of a single glow plug (28), and controls the resistance of each glow plug to a preselected resistance value. This preselected resistance value represents a glow plug temperature, that provides satisfactory fuel combustion combined with improved glow plug life. The principal use of the apparatus (20) of the present invention is with internal combustion engines using alternate fuels.

    摘要翻译： PCT No.PCT / US87 / 02878 Sec。 371日期1987年11月27日第 102（e）1987年11月27日PCT PCT公开1987年11月4日PCT公布。 出版物WO88 / 03991 日期：1988年6月2日。本发明涉及一种用于点燃在内燃机（24）中使用的装置（28,30,32,34,36,38）的控制系统。 为了点燃柴油发动机中的酒精燃料，必须在压缩之前或期间对燃料进行加热。 辉光塞（28,30,32,34,36,38）方便地提供热量，但在这种连续应用中寿命短。 必须精确控制辉光插头以防止过热，从而导致开路。 单独的恒压控制尝试提供此功能，但只是适度成功。 它们是昂贵且复杂的，只能提供适度的过热保护。 由于电热塞电阻与电热塞温度相关，电阻控制提供更好的防止电热塞过热的保护。 因此，装置（20）监视单个电热塞（28）的电阻，并且将每个电热塞的电阻控制为预选的电阻值。 该预选电阻值表示电热塞温度，其提供令人满意的燃料燃烧以及改善的电热塞寿命。 本发明装置（20）的主要用途是使用替代燃料的内燃机。

    Glow plug alternator control
    7.
    发明授权
    Glow plug alternator control 失效
    辉光插头交流发电机控制

    公开(公告)号：US4726333A

    公开(公告)日：1988-02-23

    申请号：US935897

    申请日：1986-11-28

    申请人： Michael R. Verheyen

    发明人： Michael R. Verheyen

    IPC分类号： F02B3/06 ,  F02P19/02

    CPC分类号： F02P19/025 ,  F02B3/06 ,  F02P19/023

    摘要： The present invention pertains to a control system for igniting devices used in an internal combustion engine. In order to ignite alcohol fuel in a diesel engine, the fuel must be heated before or during compression. Glow plugs conveniently provide heat, but have a short life in such continuous applications. Glow plugs must be accurately controlled to prevent overheating, which leads to open-circuiting. Individual constant voltage controls attempt to provide this function, but are only moderately successful. They are costly and complex, and provide only moderate protection from overheating. Since glow plug resistance correlates to glow plug temperature, resistance control provides better protection against glow plug overheating. Therefore, an apparatus monitors the resistance of a single glow plug, and controls the resistance of each glow plug to a preselected resistance value. This preselected resistance value represents a glow plug temperature, that provides satisfactory fuel combustion combined with improved glow plug life. The principal use of the apparatus of the present invention is with internal combustion engines using alternate fuels.

    摘要翻译： 本发明涉及一种用于点燃在内燃机中使用的装置的控制系统。 为了点燃柴油发动机中的酒精燃料，必须在压缩之前或期间对燃料进行加热。 辉光插头方便地提供热量，但在这种连续应用中具有短寿命。 必须精确控制辉光插头以防止过热，从而导致开路。 单独的恒压控制尝试提供此功能，但只是适度成功。 它们是昂贵且复杂的，只能提供适度的过热保护。 由于电热塞电阻与电热塞温度相关，电阻控制提供更好的防止电热塞过热的保护。 因此，设备监视单个电热塞的电阻，并且将每个电热塞的电阻控制为预选的电阻值。 该预选电阻值表示电热塞温度，其提供令人满意的燃料燃烧以及改善的电热塞寿命。 本发明装置的主要用途是使用替代燃料的内燃机。