Abstract: The present invention relates to a flow-modifying device for a compressor of a charging apparatus. The flow-modifying device comprises a cylindrical housing portion, which defines an inner lateral surface and in the axial direction comprises a downstream end region and an upstream end region. The flow-modifying device furthermore comprises a plurality of pockets, which are arranged on the inner lateral surface, spaced-apart from one another in the peripheral direction. Each pocket is defined here by a longitudinal projection line and a depth projection line. In an orientation plane, which is formed by the longitudinal projection line and the depth projection line, there is arranged a downstream angle of entry ? of the pocket relative to the inner lateral surface and an upstream angle of entry ? of the pocket relative to the inner lateral surface. The downstream angle of entry ? defines a downstream opening region of the pocket and the upstream angle of entry ? defines an upstream opening region of the pocket.

Abstract: A compressor of an exhaust-gas turbocharger has a compressor housing in which a compressor wheel is arranged. The compressor housing has an inlet region. A contour ring is arranged in the compressor housing between the inlet region and the compressor wheel. The contour ring, together with an adjacent wall of the compressor housing, delimits a circulation chamber which has a first connecting opening facing toward the inlet region and a second connecting opening adjacent to the compressor wheel. An exhaust-gas recirculation device has an inlet line which is arranged in the compressor housing and which opens out into the circulation chamber.

Abstract: The invention relates to a compressor (1) of an exhaust-gas turbocharger (ATL) having a compressor housing (2) in which a compressor wheel (3) is arranged and which has an inlet region (4), having a contour ring (5) which is arranged in the compressor housing (2) between the inlet region (4) and the compressor wheel (3), and which, together with an adjacent wall (7) of the compressor housing (2), delimits a circulation chamber (6) which has a first connecting opening (8) facing toward the inlet region (4) and a second connecting opening (9) adjacent to the compressor wheel (3), characterized by an exhaust-gas recirculation device (11) which has an inlet line (10) which is arranged in the compressor housing (2) and which opens out into the circulation chamber (6).