| 摘要 |
Turbochargers comprise a compressor housing having an air inlet passage for receiving inlet airflow, an air outlet passage for passing pressurized air to an engine combustion system, and a compressor impeller rotatably disposed within the housing for receiving air from the air inlet passage, pressurizing the inlet air, and passing the pressurized air to the air outlet passage. An air flow conditioner is placed into air flow communication with the compressor housing air inlet passage, and can be disposed within an air inlet section of the compressor itself, or can be placed within a vehicle air ducting positioned upstream from the turbocharger. The air flow conditioner comprises a body that is specially designed having a plurality of air passages disposed therethrough to cause a desired flow conditioning effect on air passing through it and to the compressor to offset the onset of compressor surge during engine operation, thereby shifting the compressor operating efficiency curve to the left to broaden the operating efficiency window for the turbocharger compressor.
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