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    Scroll fluid machine, scroll member and processing method thereof
    1.
    发明公开
    Scroll fluid machine, scroll member and processing method thereof 失效
    SpiralverdichterfürFluides-Spiralelement und Verarbeitungsverfahren。

    公开(公告)号：EP0549952A1

    公开(公告)日：1993-07-07

    申请号：EP92121387.2

    申请日：1992-12-16

    申请人： HITACHI, LTD.

    发明人： Kohsokabe, Hirokatsu ,  Iwata, Hiroshi ,  Endoh, Kazuhiro, Tsukuba Hausu 9-101 ,  Oshima, Yasuhiro

    IPC分类号： F01C1/02

    CPC分类号： F01C1/0246 ,  Y10T29/49236

    摘要： A scroll fluid machine (30) in which, even if volute bodies on the orbiting side (1) and on the fixed side (4) are different in material from each other, the volute bodies can be brought to their respective strengths equal to each other, dimension can be miniaturized or reduced, and internal leakage is reduced so that an attempt can be made to improve performance. In the scroll fluid machine (30), a curve of either one of a orbiting outward curve and a orbiting inward curve of a volute body on the orbiting side (1) is formed by an algebraic spiral expressed by the following equation in the form of polar coordinates (here, r: radius vector, ϑ: angle of deviation, a: coefficient, k: exponent). This curve and any one of a fixed outward curve and a fixed inward curve of the volute body on the fixed side are arranged with a phase difference of about 180 degrees. Thicknesses of respective volute walls on the orbiting side and on the fixed side are adequately or suitably changed.

    γ = a·ϑ k

    摘要翻译： 一种涡旋流体机械（30），其中即使旋转侧（1）上和固定侧（4）上的蜗壳体彼此不同，蜗壳体也可以达到各自的强度， 其他尺寸可以小型化或减小，并且内部泄漏减少，从而可以尝试提高性能。 在涡旋流体机械（30）中，轨道侧（1）上的涡卷体的轨道向外曲线和轨道向内曲线中的任一个曲线由以下等式表示的代数螺旋形成，形式为 极坐标（这里，r：半径矢量，θ：偏差角，a：系数，k：指数）。 该曲线和固定侧的蜗壳体的固定向外曲线和固定向内曲线中的任一个布置有大约180度的相位差。 旋转侧和固定侧的蜗壳壁的厚度适当地或适当地改变。 gamma = a。 theta

    Displacement type fluid machine
    3.
    发明公开
    Displacement type fluid machine 有权
    Fluidverdrängungsmaschine

    公开(公告)号：EP0943806A1

    公开(公告)日：1999-09-22

    申请号：EP99105334.9

    申请日：1999-03-16

    申请人： HITACHI, LTD.

    发明人： Kohsokabe, Hirokatsu ,  Takebayashi, Masahiro ,  Mitsuya, Shunichi ,  Hata, Hiroaki ,  Ohshima, Yasuhiro ,  Tojo, Kenji

    IPC分类号： F04C18/04 ,  F04C27/00

    CPC分类号： F04C18/04 ,  F01C21/106 ,  F04C27/001 ,  F04C2230/602 ,  F04C2240/30

    摘要： A displacement type fluid machine is featured by a low sliding rate and in low vibrations and pulsations but is troubled such that the radial gap in a displacer sliding portion is enlarged by the clearance of a shaft drive system and a rotating moment acting on a displacer so that the internal leakage of a working fluid is increased to lower the performance and the reliability.
    The sliding contact portion between a cylinder (4) and a displacer (5) is made into a predetermined section, and the cylinder and the displacer are so contoured that when they are made concentric, the normal distance in the sliding contact section between the cylinder contour and the displacer contour may be smaller (ε') than that of the remaining section (ε), thereby to decrease the radial gap to lower the internal leakage of the working fluid and to improve the performance and the reliability.

    摘要翻译： 排量型流体机械具有低滑动率和低振动和脉动特征，但是困扰了排气器滑动部分中的径向间隙，由于轴驱动系统的间隙和作用在置换器上的旋转力矩而增大 工作流体的内部泄漏增加，以降低性能和可靠性。 将气缸（4）和置换器（5）之间的滑动接触部分制成预定的部分，并且气缸和置换器具有如此轮廓，使得当它们同心时，气缸之间的滑动接触部分的正常距离 轮廓和置换器轮廓可以比剩余部分（ε）更小（ε'），从而减小径向间隙以降低工作流体的内部泄漏并提高性能和可靠性。