COMPRESSOR FOR SUPERCHARGER OF INTERNAL COMBUSTION ENGINE

In a compressor for a supercharger of an internal combustion engine comprising a shroud (4), an impeller (10), a vaneless diffuser (20), and a scroll (30), a hub-side wall (22) of the vaneless diffuser (20) is formed to be inclined to the opposite side to a shroud-side wall (24) with respect to a direction (L1) perpendicular to a rotational axis (CL) of the impeller (10) in the longitudinal cross section including the rotational axis (CL) of the impeller (10). With such a configuration, the amount of deposit formed on the hub-side wall (22) of the vaneless diffuser (20) is reduced.