Backup power supply system with a null transfer time
    1.
    发明授权
    Backup power supply system with a null transfer time 有权
    备用电源系统具有空转移时间

    公开(公告)号:US07345380B2

    公开(公告)日:2008-03-18

    申请号:US10878268

    申请日:2004-06-29

    IPC分类号: H02J9/00 H02J5/00

    摘要: A backup power supply system supplies power from a first ac power source in normal condition. Once the first ac power source is abnormal or fails, the system automatically turns off the first ac power source and turns on a second ac power source with null transfer time. When the first ac power source is normal, a dc/ac power inverter is controlled to supply an approximately null current such that a mechanical switch is allowed to be closed and no circulating current is generated between the first ac power source and the dc/ac power inverter. Since the mechanical switch is continuously closed, and requires no switching operation, the backup power supply system can supply the backup power with a null transfer time.

    摘要翻译: 备用电源系统在正常状态下从第一交流电源供电。 一旦交流电源出现异常或故障,系统会自动关闭第一个交流电源,并以空的传输时间打开第二个交流电源。 当第一交流电源正常时,控制直流/交流电源逆变器以提供大致零电流,使得允许机械开关闭合,并且在第一交流电源和直流/交流之间不产生循环电流 电源逆变器。 由于机械开关连续关闭,无需切换操作,备用电源系统可以提供空转传送时间的备用电源。

    Backup power supply system with a null transfer time
    2.
    发明申请
    Backup power supply system with a null transfer time 有权
    备用电源系统具有空转移时间

    公开(公告)号:US20050088043A1

    公开(公告)日:2005-04-28

    申请号:US10878268

    申请日:2004-06-29

    IPC分类号: H02J9/06 H02J7/00

    摘要: A backup power supply system supplies power from a first ac power source in normal condition. Once the first ac power source is abnormal or failed, the system automatically turns off the first ac power source and turns on a second ac power source with null transfer time. When the first ac power source is normal, a dc/ac power inverter is controlled to supply an approximately null current that a mechanical switch is allowed to being closed and no circulating current is generated between the first ac power source and the dc/ac power inverter. Since the mechanical switch is successively closed, and it requires no switching operation, the backup power supply system can supply the backup power with a null transfer time.

    摘要翻译: 备用电源系统在正常状态下从第一交流电源供电。 一旦交流电源出现异常或故障,系统会自动关闭第一交流电源,并打开第二个交流电源,传输时间不变。 当第一交流电源正常时,控制直流/交流电源逆变器以提供近似为零的电流,使机械开关被允许闭合,并且在第一交流电源和直流/交流电源之间不产生循环电流 逆变器。 由于机械开关连续关闭,不需要切换操作,备用电源系统可以提供空转传送时间的备用电源。

    Lubrication apparatus for engines
    3.
    发明申请
    Lubrication apparatus for engines 审中-公开
    发动机润滑装置

    公开(公告)号:US20090235894A1

    公开(公告)日:2009-09-24

    申请号:US12382645

    申请日:2009-03-20

    IPC分类号: F01M1/04

    CPC分类号: F01M11/065 F01M1/04 F01M11/02

    摘要: A lubrication apparatus for an engine includes a crankshaft chamber, a camshaft chamber, and an oil reservoir chamber, wherein an oil-suction piping path is provided in the oil reservoir chamber, and is communicated between the crankshaft chamber and the oil reservoir chamber. The oil-suction piping path includes, among others, a rotatable pipe including a plurality of oil-suction orifices located at wall of the rotatable pipe. No matter the engine is situated at any state of declination, at least one of the oil-suction orifices and an air-suction vent is kept under the surface of the lubricant, so that the engine can be appropriately lubricated. Further, a one-way valve is arranged between the crankshaft chamber and the oil reservoir chamber, where most of the lubricant can flow back to the oil reservoir chamber during the descending stroke of a piston, so that a lubricant supply can be reduced.

    摘要翻译: 一种用于发动机的润滑装置包括曲轴室,凸轮轴室和储油室,其中在储油室中设置​​吸油管道,并且在曲轴室和储油室之间连通。 吸油管道还包括一可旋转的管道,该管道包括位于可旋转管壁的多个吸油孔。 无论发动机处于任何偏角状态,至少有一个吸油口和一个吸气口都保持在润滑剂的表面之下,从而可以适当地润滑发动机。 此外,在曲轴室和储油室之间布置有单向阀,其中大部分润滑剂可以在活塞的下降行程期间回流到储油室,从而可以减少润滑剂供应。