| 摘要 |
<p>The present invention has an object of offering a scroll fluid machine having a multi-stage compressing part which is characterized in that volumes of sealed spaces are less scattering corresponding to the angular rotational amount of the revolving scroll driving shaft. A scroll fluid machine having a multi-stage compressing part which further compresses fluid, which has been compressed by a front stage compressing part and cooled, with a back-stage compressing part, characterized in that a reduction ratio DELTA Y of a volume of a compression chamber is smaller in the back compressing part than in the front compressing part, DELTA Y being expressed by DELTA Y=äA(n-1)-Anü/A(n-1), where A is the volume of a compression chamber defined by a scroll wrap and a scroll mirror plane, A(n-1) is the volume of a compression chamber at the rotational angle DELTA omega (n-1), An is the volume of a compression chamber at the rotational angle DELTA omega n and DELTA omega is the rotational angle of the driving shaft 16 of a revolving scroll. <IMAGE></p> |
