| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a centrifugal compressor which includes an impeller of a multi-stage shroud structure and has a broad actuation range.SOLUTION: A centrifugal compressor includes a housing (3) having an intake channel (8), and an impeller (9) which has a disk part (9a) and a vane part (9b) and is arranged within the intake channel (8). Further, intermediate partition walls (9c) of (N-1) pieces (N is an integer two or more) which are formed on the impeller (9) and divide the vane part (9b) to N steps by setting the rotation axial line (CL1) side as a first step part in the direction being separated from the rotation axial line (CL1), and a flow rate limiting part (10) which is disposed on the upstream side with respect to a vane part (9b2) of at least N step part and limits intake flow rate flowing into the vane part (9b2) of the N step part.</p> |
