| 摘要 |
The invention relates to a duct for interconnecting separate stages of a compressor or a compressor and an intercooler of an internal combustion engine. The duct (1) comprises a lumen (2) for conveying compressed air and at least one channel (3) for a cooling liquid, which channel at least partially surrounds the lumen (3B) and/or extends inside the lumen (3A). The duct according to the present invention enables effective cooling of compressed air e.g. from 260.degree.C to 220.degree.C at a relatively low pressure drop, thus increasing service life of downstream equipment, in particular a downstream intercooler.
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