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    • 1. 发明授权
    • Rotary fluid vane pump with means preventing axial displacement of the
drive shaft
    • 旋转流体叶片泵,具有防止驱动轴的轴向位移的装置
    • US4257753A
    • 1981-03-24
    • US2136
    • 1979-01-09
    • Hiroshi SakamakiYoshiyuki MaedaFumihiro UshijimaTadashi Saitou
    • Hiroshi SakamakiYoshiyuki MaedaFumihiro UshijimaTadashi Saitou
    • F04C18/344F04C15/00F04C27/00F04C5/00
    • F04C15/0042F04C15/00
    • A rotary fluid pump has a stator housing with a generally cylindrical cavity extending therethrough and a pair of recessed end heads assembled at opposite ends of the housing to form a pump cavity therewith. A drive shaft is journalled in the end heads by bearings and extending eccentrically into the interior of the pump cavity and a rotor is mounted on the drive shaft within the pump cavity. A pair of sealing plates of different thickness are individually disposed between the ends of the stator housing and the end heads to divide the pump cavity into a pair of end chambers defined by the end head recesses and the plates and an intermediate rotor chamber defined by the plates. A plurality of vanes are slidably disposed in an equal plurality of grooves radially formed in the rotor. The drive shaft is constrained to prevent axial displacement by stoppers, washers or a combination thereof mounted on the shaft and contacting bearings that support the shaft. The bearings are fixed to one end head.
    • 旋转流体泵具有定子壳体,其具有延伸穿过其中的大致圆柱形空腔,以及一对凹入的端头,其组装在壳体的相对端部处以与其形成泵腔。 驱动轴通过轴承轴颈安装在端头中,并偏心地延伸到泵腔的内部,转子安装在泵腔内的驱动轴上。 一对不同厚度的密封板分别设置在定子壳体的端部和端头之间,以将泵腔分成由端头凹槽和板限定的一对端室,以及由 盘子 多个叶片可滑动地设置在转子中径向形成的相等的多个槽中。 驱动轴被约束以防止通过止动件,垫圈或其组合安装在轴上并且接触支撑轴的轴承的轴向位移。 轴承固定在一个端头上。