Diffuser

摘要

Guide blades on inlet-side and the hub-side housing parts (41,42) has stepped edges. The blade profile length (l1,l2) of the inlet-side is larger than the hub-side. The inlet-side has a blade height (h1) of about 30 percent of the sum of the heights along the inlet-side edge (11). Inlet-side edge has an inside diameter that is 25 percent more than the outer diameter of the compressor impeller radius. The distance (r1) inlet-side inlet edge is about 85 percent of the distance (r2) of the hub-side inlet edge (21) from the outside radius (r) of the outflow edges of the moving blades (31).