| 摘要 |
A compressor for an internal combustion engine, having a compressor impeller (34) which is mounted rotatably in a compressor housing (32), and having an intake section which is situated upstream of the compressor impeller (34) in an operational flow direction (36) of a gas to be compressed, is distinguished by the fact that at least one circumferential shoulder (50) which faces toward the compressor impeller (34) and which does not have a mouth is integrated into a wall which delimits the intake section, and the ratio of the shortest distance between the compressor impeller (34) and the circumferential shoulder (50) to the largest cross-sectional dimension in the flow cross section delimited by the circumferential shoulder (50) amounts to at least 0.5. In this way, a propagation of a backward-flowing swirling flow close to the wall, which may arise in particular as a result of a fast closure of a throttle flap in a fresh-gas tract, which integrates the compressor, of an internal combustion engine, can be disrupted, and noise generation resulting from this ("discharge hissing") can be reduced. |
