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    • 10. 发明公开
    • Single-screw compressor rotor construction
    • Rotorfüreinen Verdichter mit Toroidalschraube。
    • EP0517250A1
    • 1992-12-09
    • EP92109553.5
    • 1992-06-05
    • DAIKIN INDUSTRIES, LIMITED
    • Kataoka, Osami, c/o Rinkai-kojo, Sakai-seisakusho
    • F04C18/30
    • F04C18/48
    • A single-screw compressor has a rotor (2) with screw vanes (3) which is rotatably incorporated in a casing (1). The screw vane (3) has a confronting surface (31) which has a width in a rotating direction of the rotor (2) and which faces an inner peripheral wall (11) of the casing (1). A rib (6) narrower than the width of the confronting surface (31) is formed at one end in a widthwise direction of the confronting surface (31), extending along the spiral of the screw vane (3). Accordingly, a gap between the screw vane (3) and the inner peripheral wall of the casing (1) is made small, improving sealing properties. A rib-side lateral surface (32, 33) of the screw vane (3) is effectively utilized as a heat radiation surface, so that heat generated through contact between the rib (6) and the inner peripheral wall (11) of the casing (1) is radiated easily, thereby restricting the temperature rise of the screw vane (3) as well as the thermal expansion in the radial direction thereof.
    • 单螺杆式压缩机具有转子(2),该转子具有可旋转地结合在壳体(1)中的螺旋叶片(3)。 所述螺旋叶片(3)具有面对所述转子(2)的旋转方向的宽度并面对所述壳体(1)的内周壁(11)的面对面(31)。 在面对面(31)的沿宽度方向的一端形成有比相对面(31)的宽度窄的肋(6),沿着螺旋叶片(3)的螺旋方向延伸。 因此,螺旋叶片(3)与壳体(1)的内周壁之间的间隙变小,改善了密封性。 螺杆叶片(3)的肋侧侧面(32,33)有效地用作散热面,使得通过肋(6)与壳体的内周壁(11)之间的接触产生的热量 (1)容易地照射,从而限制螺旋叶片(3)的温度升高以及其径向的热膨胀。