Impeller housing for turbocharger, particularly compressor housing of motor vehicle, comprises impeller, which is arranged in interior of impeller housing, where impeller forms gap with impeller back

摘要

The impeller housing (10) comprises an impeller (12), which is arranged in the interior of impeller housing, where the impeller forms a gap (18) with an impeller back (16). One or multiple connecting elements (32,34) are provided for ventilating the gap. Another gap (22) is formed between the periphery (24) of the impeller and the impeller housing, where the latter gap and the former gap are fluidically connected.