Patent ID: 9303561
Filing Date: 2016-04-05
CPC Classification: F02B,F02C,F02M,F04D,F05D

Claim Text:
1. A turbocharger comprising: a casing having an inlet end and an outlet end; a flow passage within the casing having a substantially continuous inner surface and configured to pass inlet air from the inlet end to the outlet end; a compressor wheel located in the casing having at least one main blade and configured to rotate within the casing to compress the inlet air; and an annular flow disrupting feature on the casing configured to disrupt the continuity of the inner surface located at a leading edge of the at least one main blade and wherein the flow disrupting feature is closed to upstream communication with the flow passage except via the flow passage, wherein a leading edge surface of the flow disrupting feature splays radially outward, in a direction away from a central axis of the casing, at an obtuse angle from a surface of the casing.