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    • 4. 发明授权
    • Positive air system for inkjet print head
    • 喷墨打印头正气系统
    • US06890053B2
    • 2005-05-10
    • US10401822
    • 2003-03-28
    • Gregory A. MyhillCharles S. TamarinGlen Vincent
    • Gregory A. MyhillCharles S. TamarinGlen Vincent
    • B41J2/01B41J2/04B41J2/14B41J2/165
    • B41J2/14B41J2/04B41J29/12B41J2202/02
    • A positive air system, for a fluid jetting device that jets a fluid in a fluid droplet path prevents the ingress of dust and debris to the fluid jetting device and further prevents the introduction of dust and debris into the fluid droplet path. The air system includes an enclosure having at least one wall defining a barrier and enclosing the fluid jetting device. The barrier defines a local environment. The at least one wall has a plurality of orifices formed therein that are configured to direct a stream of pressurized air therefrom in a direction that diverges from the fluid droplet path. The fluid droplet path and the pressurized air stream direction do not converge so that the pressurized air flowing from the orifices does not interfere with the fluid moving through the droplet path.
    • 用于在流体液滴路径中喷射流体的流体喷射装置的正空气系统防止灰尘和碎屑进入流体喷射装置,并进一步防止灰尘和碎屑进入流体液滴路径。 空气系统包括具有至少一个壁的壳体,该壁限定阻挡层并且包围流体喷射装置。 屏障定义了一个本地环境。 所述至少一个壁具有形成在其中的多个孔,其构造成在从所述流体液滴路径分叉的方向上引导加压空气流。 流体液滴路径和加压空气流方向不会会聚,使得从孔口流出的加压空气不会干扰通过液滴路径移动的流体。