Fixed volume valve system
    42.
    发明申请
    Fixed volume valve system 审中-公开
    固定量阀系统

    公开(公告)号:US20070128061A1

    公开(公告)日:2007-06-07

    申请号:US11602457

    申请日:2006-11-20

    CPC classification number: F04B25/00 F04B7/0275

    Abstract: Embodiments of the present invention provide valves that provide for uniform holdup volume. An embodiment of the present invention provides a valve comprising a valve body (e.g., one or more pieces) that defines a valve chamber having a valve seat, an inlet flow passage, an outlet flow passage and a diaphragm control flow passage intersecting the valve seat. The valve seat is shaped so that the valve has a fixed holdup volume when at least a threshold vacuum is applied to the diaphragm control flow passage. The valve further comprises a diaphragm movable towards and away from the valve seat. According to one embodiment of the present invention, the valve seat can have a semi-hemispherical shape to which the diaphragm conforms when a minimum vacuum is applied to the diaphragm control flow passage.

    Abstract translation: 本发明的实施例提供了提供均匀滞留体积的阀。 本发明的实施例提供了一种阀,其包括阀体(例如,一个或多个),其限定具有阀座的阀室,入口流动通道,出口流动通道和与阀座相交的隔膜控制流动通道 。 阀座的形状使得当至少一个阈值真空被施加到隔膜控制流动通道时,阀具有固定的保持容积。 阀还包括可朝向和离开阀座移动的隔膜。 根据本发明的一个实施例,当将最小真空施加到隔膜控制流动通道时,阀座可以具有半隔膜形状,隔膜适合于该隔膜。

    System and method for correcting for pressure variations using a motor
    43.
    发明申请
    System and method for correcting for pressure variations using a motor 有权
    使用电机校正压力变化的系统和方法

    公开(公告)号:US20070104586A1

    公开(公告)日:2007-05-10

    申请号:US11602472

    申请日:2006-11-20

    Abstract: Systems and methods for compensating for pressure increase which may occur in various enclosed spaces of a pumping apparatus are disclosed. Embodiments of the present invention may compensate for pressure increases in chambers of a pumping apparatus by moving a pumping means of the pumping apparatus to adjust the volume of the chamber to compensate for a pressure increase in the chamber. More specifically, in one embodiment, to account for unwanted pressure increases to the fluid in a dispense chamber the dispense motor may be reversed to back out piston to compensate for any pressure increase in the dispense chamber.

    Abstract translation: 公开了用于补偿可能在泵送装置的各种封闭空间中发生的压力增加的系统和方法。 本发明的实施例可以通过移动泵送装置的泵送装置来调节泵室的容积来补偿泵送装置的腔室中的压力增加,以补偿腔室中的压力增加。 更具体地,在一个实施例中,为了解决分配室中的流体的不希望的压力增加,分配马达可以反向以返回活塞以补偿分配室中的任何压力增加。

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