Temperature control unit and sight glass
    2.
    发明授权
    Temperature control unit and sight glass 失效
    温度控制单元和观察窗

    公开(公告)号:US06481277B1

    公开(公告)日:2002-11-19

    申请号:US09767619

    申请日:2001-01-23

    IPC分类号: G01F2330

    CPC分类号: G01F23/02 G01F23/64 G01F23/76

    摘要: An apparatus for indicating a fluid level in a reservoir includes a conduit for communication with a reservoir and including a sight glass. A buoyant primary float is provided within the conduit, and a stop is provided within the conduit for engaging the primary float to prevent travel of the primary float beyond an upper portion of the conduit. A buoyant secondary float in the conduit is moveable together with the primary float when the primary float is not engaged by the stop, and is moveable separately from the primary float when the primary float is engaged by the stop and a fluid level in the conduit exceeds the level of the stop such that a portion of the secondary float may travel separately within the upper portion of the conduit. The secondary float preferable includes an elongate portion that passes through an aperture in the primary float, and a buoyant upper portion that is located above the primary float and is larger than the aperture in the primary float. The secondary float also preferably includes a lower portion that is located below the primary float and is larger than the aperture in the primary float. The length of the elongate member between the upper and lower portions may be provided to correspond to a distance between a lower surface of the primary float when engaged by the stop, and a predetermined fluid level in the conduit such as the maximum fill level of the reservoir. The elongate member may also include markings calibrated to indicated a remaining fluid capacity of the reservoir relative to a predetermined capacity. A temperature control unit that includes a sight glass with the aforementioned primary and secondary floats is also disclosed.

    摘要翻译: 用于指示储存器中的液位的装置包括用于与储存器连通并包括观察窗的导管。 在导管内提供浮力的主浮子,并且在导管内提供止动件用于接合主浮子,以防止主浮子超过导管的上部。 当主浮子不被止动件接合时,导管中的浮力二次浮子与主浮子一起可移动,并且当主浮子与止动件接合并且导管中的液位超过时可与主浮子分开运动 停止水平使得二次浮子的一部分可以在导管的上部分开地行进。 次级浮子优选包括穿过主浮子中的孔的细长部分和位于主浮子上方并且大于主浮子中的孔的浮力上部。 次级浮子还优选地包括位于主浮子下方并且大于主浮子中的孔的下部。 上部和下部之间的细长构件的长度可以设置成对应于主浮子的下表面与止动件接合时的距离以及导管中的预定液位,例如最大填充量 水库 细长构件还可以包括经校准以标示储存器相对于预定容量的剩余流体容量的标记。 还公开了一种温度控制单元,其包括具有上述一次和二次浮子的观察镜。