SCROLL STRUCTURE OF CENTRIFUGAL COMPRESSOR

摘要

This scroll structure of a centrifugal compressor is characterized by the provision of: a radius increasing arc (E) having a radius, which is a distance from the center of a scroll (12) to the scroll centroid (P) of a cross section of the scroll (12), gradually increasing from a scroll start point and in any circumferential range; and a radius decreasing arc (F) having the radius gradually decreasing toward a scroll end point (Z).