Compressor of a turbocharger

摘要

A turbocharger comprising a compressor which has a radially extending vaneless diffuser arranged between an impeller and an air discharge chamber. The vaneless diffuser is formed between a first annular surface and a second annular surface which are arranged in parallel to each other. The first annular surface is formed on the center housing of a turbocharger. The second annular surface is formed on an annular separating member which separates the vaneless diffuser from the air discharge chamber. The first annular surface is connected to the inner surface of the air discharge chamber, which is located furthest from the impeller. The first annular surface has a concavely curved portion at the connecting portion of the first annular surface and the inner wall of the air discharge chamber.