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    Droplet generator for a continuous stream ink jet print head
    1.
    发明授权
    Droplet generator for a continuous stream ink jet print head 有权
    用于连续流喷墨打印头的液滴发生器

    公开(公告)号：US06637871B1

    公开(公告)日：2003-10-28

    申请号：US10030671

    申请日：2002-05-16

    Applicant: Graham D Martin ,  Nigel E Sherman ,  Sukbir S Pannu ,  Andrew D King

    Inventor： Graham D Martin ,  Nigel E Sherman ,  Sukbir S Pannu ,  Andrew D King

    IPC: B41J2025

    CPC classification number: B41J2/1632 ,  B41J2/025 ,  B41J2/162

    Abstract: A droplet generator for a continuous stream ink jet print head includes an elongate cavity for containing the ink, nozzle orifices in a wall of the cavity for passing ink from the cavity to form jets. The nozzle orifices extend along the length of the cavity. An actuator is disposed on the opposite side of the cavity to the wall for vibrating the ink in the cavity by itself vibrating relative to the wall. The vibration is such that each jet breaks up into ink droplets at the same predetermined distance from the wall of the cavity. The thickness of the wall through which the nozzle orifices extend is less than 90 &mgr;m. The wall includes a planar member secured to the remainder of the droplet generator so as to form a boundary which extends around the nozzle orifices and within which the planar member is unsupported. The boundary includes first and second boundary lengths which extend along the length of the cavity on either side of the nozzle orifices. The distance between the first and second boundary lengths being less than 1700 &mgr;m.

    Abstract translation: 用于连续流喷墨打印头的液滴发生器包括用于将油墨，喷嘴孔口容纳在空腔的壁中的细长空腔，用于使油墨从空腔传送以形成喷嘴。 喷嘴孔沿腔的长度延伸。 致动器设置在空腔的与壁相反的一侧上，用于通过其相对于壁自身振动来振动腔中的墨。 振动使得每个射流以与腔的壁相同的预定距离分裂成墨滴。 喷嘴孔延伸通过的壁的厚度小于90μm。 壁包括固定到液滴发生器的其余部分的平面构件，以便形成围绕喷嘴孔延伸并且平面构件不支撑的边界。 该边界包括沿喷嘴孔的任一侧上的空腔的长度延伸的第一和第二边界长度。 第一和第二边界长度之间的距离小于1700μm。

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