| 摘要 |
An integrated cooling system for a turbocharger, suitable for an internal combustion engine. A cooling air shroud surrounds a portion of an interstage duct in a two-stage turbocharger, and may also surround a part of the outlet from the turbocharger. A fan on a turbocharger shaft is driven by the turbocharger turbine to draw air into the cooling air shroud, and pass the cooling air in heat exchange relationship with compressed air flowing through the turbocharger. The fan may also be used to precompress air compressed in the turbocharger.
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