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    • 2. 发明申请
    • VACUUM PUMP
    • 真空泵
    • US20140112814A1
    • 2014-04-24
    • US14119851
    • 2012-05-29
    • Soichi KudaraMasami Nagayama
    • Soichi KudaraMasami Nagayama
    • F04C25/02F04C18/12
    • F04C25/02F04C18/126F04C23/001F04C29/04F04C2220/30F04C2240/30F04C2280/02
    • A vacuum pump (10) has a pump casing (54) including pump chambers (50a-50f) held in fluid communication with each other and arrayed in a longitudinal direction thereof, an inlet port (52a) and an outlet port (52b), a rotational shaft (58) rotatably supported at opposite ends thereof and extending in the longitudinal direction of the pump casing (54), and rotors (60a-60f) housed in the pump chambers (50a-50f) and coupled to the rotational shaft (58). The pump casing (54) includes a first thermally conductive member (72) extending parallel to the rotational shafts (58) substantially the full length of the pump casing (54) in the longitudinal direction thereof, and a second thermally conductive member (74) positioned near an end of the first thermally conductive member (72) at the outlet port (52b) and extending in a transverse direction of the pump casing (54).
    • 真空泵(10)具有泵壳(54),泵壳(54)包括彼此保持流体连通且沿其长度方向排列的泵室(50a-50f),入口(52a)和出口(52b) 旋转轴(58),其可旋转地支撑在其相对端并在泵壳体(54)的纵向方向上延伸;以及转子(60a-60f),容纳在泵室(50a-50f)中并联接到旋转轴 58)。 所述泵壳体(54)包括在所述泵壳体(54)的纵向方向上大致整个长度的平行于所述旋转轴(58)延伸的第一导热构件(72)和第二导热构件(74) 在所述出口(52b)处位于所述第一导热构件(72)的端部附近并沿所述泵壳体(54)的横向方向延伸。