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    Passive pressure regulator for setting the pressure of a liquid to a predetermined pressure differential below a reference pressure
    11.
    发明授权
    Passive pressure regulator for setting the pressure of a liquid to a predetermined pressure differential below a reference pressure 失效
    被动压力调节器，用于将液体的压力设定在低于参考压力的预定压力差

    公开(公告)号：US5969736A

    公开(公告)日：1999-10-19

    申请号：US116427

    申请日：1998-07-14

    申请人： Leslie A. Field ,  Phillip Barth ,  David J. Waller ,  George D. Zuras, Jr. ,  Paul P. Merchant ,  Storrs Hoen ,  Channing R. Robertson

    发明人： Leslie A. Field ,  Phillip Barth ,  David J. Waller ,  George D. Zuras, Jr. ,  Paul P. Merchant ,  Storrs Hoen ,  Channing R. Robertson

    IPC分类号： B41J2/055 ,  B41J2/175

    CPC分类号： B41J2/17556 ,  B41J2/055 ,  B41J2202/05

    摘要： A pressure regulator that sets the pressure of a liquid to a predetermined pressure differential below a reference pressure, such as atmospheric pressure. The pressure regulator comprises a liquid delivery channel and a capillary array. The liquid delivery channel includes a liquid input and a liquid output. The liquid flows through the liquid delivery channel from the liquid input to the liquid output. The capillary array is composed of ones of an elongate capillary. The capillary includes a first end in fluid communication with the liquid delivery channel and a second end in pressure communication with a source of the reference pressure. The liquid flows through the first end into the capillary to form a liquid surface in the capillary. The second end is remote from the first end. The capillary has cross-sectional dimensions in relation to the surface tension of the liquid and the angle of contact between the liquid and the capillary such that the pressure drop across the liquid surface in the capillary is equal to the predetermined pressure differential.

    摘要翻译： 一种压力调节器，其将液体的压力设定为低于参考压力（例如大气压）的预定压差。 压力调节器包括液体输送通道和毛细管阵列。 液体输送通道包括液体输入和液体输出。 液体通过液体输送通道从液体输入流到液体输出。 毛细管阵列由细长毛细管组成。 毛细管包括与液体输送通道流体连通的第一端和与参考压力的源压力连通的第二端。 液体通过第一端流入毛细管，以在毛细管中形成液体表面。 第二端远离第一端。 毛细管具有与液体的表面张力和液体和毛细管之间的接触角相关的横截面尺寸，使得毛细管中的液体表面上的压降等于预定的压力差。

    Ink delivery system and method for controlling fluid pressure therein
    14.
    发明授权
    Ink delivery system and method for controlling fluid pressure therein 有权
    油墨输送系统及其中控制流体压力的方法

    公开(公告)号：US06428156B1

    公开(公告)日：2002-08-06

    申请号：US09432453

    申请日：1999-11-02

    申请人： David J. Waller ,  Melissa D. Boyd ,  John M. Koegler, III

    发明人： David J. Waller ,  Melissa D. Boyd ,  John M. Koegler, III

    IPC分类号： B41J218

    CPC分类号： B41J29/38 ,  B41J2/175 ,  B41J2/17596 ,  B41J2/18 ,  B41J2/19

    摘要： An actively-controlled recirculating ink delivery system is provided that incorporates active control of pressures downstream of the printhead. This is achieved through the use of a device (such as a pump, return valve, combination thereof or similar devices) that provides active control of downstream ink pressures. A pressurized ink supply, pressure sensors, an air and heat exchanger are also provided, thereby improving start up, normal operation, purging and shut down procedures. Because the pressurized ink supply is not restricted to sit at a particular vertical distance below the printhead, backpressure may be changed quickly and easily through electronic control, and system priming is considerably quicker than with conventional air-pressurized systems.

    摘要翻译： 提供了主动控制的循环墨水输送系统，其包括对打印头下游的压力的主动控制。 这通过使用提供对下游墨水压力的主动控制的装置（例如泵，回流阀，其组合或类似装置）来实现。 还提供加压墨水供应，压力传感器，空气和热交换器，从而提高启动，正常运行，清洗和关闭程序。 由于加压墨水供应不限于位于打印头下方特定的垂直距离，所以通过电子控制可以快速和容易地改变背压，并且系统启动比传统的空气加压系统快得多。