Turbocharger comprising a compressor having two back-to-back impellers

摘要

The present invention relates to a compressor for a turbocharger. The compressor comprises a compressor wheel that comprises first and second compressor faces oriented back-to-back and a bore for mounting the compressor wheel to a shaft along a rotational axis of the compressor wheel, and a compressor housing that comprises a first component that defines a first passage to the first compressor face, a second component that attaches to the first component and defines a second passage to the second compressor face, one or more air inlets to direct inlet air to the first passage and/or to the second passage, and a volute to receive air compressed by the compressor wheel.