Radial compressor for exhaust gas turbo-supercharger

摘要

The compressor has a compressor wheel followed by a diffusor with guide scoops (7) having a compression side (8), an induction side (9) and a leading edge (10) facing the compressor wheel. A narrow cross section surface (12) is formed between the sides. At least one guide scoop has an aperture (13) extending from the compression side to the induction side and extending over at least part of the scoop height (22). The aperture is in the region between the leading edge of the scoop and the narrow cross section surface of the next scoop.