Exhaust gas turbocharger

An exhaust gas turbocharger for a vehicle engine, the exhaust gas turbocharger including a turbine means, a compressor means, the turbine means including a rotor means operatively connected to the compressor means, and a spiral housing means, a plurality of inlet channel means provided in said spiral housing means, the inlet channel means are combined only directly ahead of and at a periphery of the turbine rotor means, characterized in that a circumferential substantially circular edge is formed in an outer surface of the rotor means, annular channel means are provided for conducting a flow of exhaust gases, and annular gap is provided within an area of the circular edge for enabling a part of the exhaust gases to flow from the spiral housing means into the annular channel means, the compressor means includes a charging air channel means, a return line communicating the annular channel means with the charging air channel means, a turbine exhaust gas line is provided, and a bypass line means for bypassing the turbine means leads to the turbine exhaust gas line, said return line and the bypass line means branch off from the annular channel means, and in that the annular gap and annular channel means begin in the spiral housing means of the turbine means at a place at which the rotor means of the turbine means passes over from the periphery into the area of smaller outside diameter.