Energy absorbing shock mechanism for reducing impact and rotary actuator incorporating same
    2.
    发明授权
    Energy absorbing shock mechanism for reducing impact and rotary actuator incorporating same 有权
    用于减少冲击的能量吸收冲击机构和结合其的旋转执行器

    公开(公告)号:US06467587B2

    公开(公告)日:2002-10-22

    申请号:US09793151

    申请日:2001-02-26

    IPC分类号: B60T872

    摘要: A shock absorber for a shaft. The shock absorber comprises a collar having an opening receiving the shaft. A clearance gap is defined between the collar opening and the shaft. A pin offset from the axis connects the collar to a shoulder on the shaft. A resilient o-ring arranged in the clearance gap engages the collar and the shaft. In operation, the collar and the shaft rotate in unison. However, when the collar accelerates or comes to a sudden stop, the resilient o-ring compresses to provide the shock absorption. The shock absorber may be incorporated into a rotary actuator. In a rotary actuator, the collar includes a stop tab that rotates between two stop surfaces of the actuator housing. When the stop tab strikes one of the stop surfaces, the resilient member compresses thereby absorbing and reducing impact force. Compression in the resilient member is snubbed via mechanical stops.

    摘要翻译: 用于轴的减震器。 减震器包括具有接收轴的开口的轴环。 在轴环开口和轴之间限定间隙。 从该轴偏移的销将轴环连接到轴上的肩部。 布置在间隙中的弹性O形环与轴环和轴接合。 在操作中,轴环和轴旋转一致。 然而,当套环加速或突然停止时,弹性O形环压缩以提供减震。 减震器可以结合到旋转致动器中。 在旋转致动器中,套环包括在致动器壳体的两个止动表面之间旋转的止动突片。 当止动片撞击止挡表面之一时,弹性件压缩从而吸收和减小冲击力。 通过机械止动件将弹性构件的压缩缓冲。

    Continuously variable electrically actuated flow control valve for high
temperature applications
    4.
    发明授权
    Continuously variable electrically actuated flow control valve for high temperature applications 失效
    用于高温应用的连续可变电动流量控制阀

    公开(公告)号:US6079210A

    公开(公告)日:2000-06-27

    申请号:US118156

    申请日:1998-07-16

    摘要: A continuously variable electrical actuator rotationally coupled to and thermally isolated from a butterfly valve. The butterfly valve may be used to modulate high temperature exhaust gas flow through an engine turbocharger. An electrical actuator provides a continuously variable output to an output shaft. The butterfly valve has its rotary position controlled by an input shaft. The input shaft and output shaft are rotationally coupled through minimum contact points to reduce heat transfer. The connection between input and output shafts also minimizes vibration transfer therebetween. An coupling tube coaxially interposed between the input and output shafts provides a thermal block to further reduce heat transfer. The input and outputs shafts are rotationally coupled to the intermediate shaft by torsion spring mechanisms to allow a limited range of axial translation for the input shaft. The torsion spring mechanisms are preloaded to prevent rotational hysteresis in the butterfly valve.

    摘要翻译: 旋转耦合到蝶形阀并与蝶阀隔热的连续可变的电致动器。 蝶阀可用于调节通过发动机涡轮增压器的高温排气流。 电致动器向输出轴提供连续可变的输出。 蝶阀的旋转位置由输入轴控制。 输入轴和输出轴通过最小接触点旋转耦合,以减少传热。 输入和输出轴之间的连接也最小化了它们之间的振动传递。 同轴地插入在输入和输出轴之间的耦合管提供热块以进一步减少热传递。 输入和输出轴通过扭转弹簧机构旋转地联接到中间轴,以允许用于输入轴的有限范围的轴向平移。 扭簧机构被预先装载以防止蝶阀中的旋转滞后。