| 摘要 |
PROBLEM TO BE SOLVED: To provide a diffuser vane the operation range of which can be widened and which has little pressure loss.SOLUTION: A diffuser flow path (14a) of a centrifugal compressor (1) is formed as an annular clearance between a body housing (3) having an intake flow path (9) where an impeller (11) is arranged and a lid housing (5) connected to a downstream side of the intake flow path (9) in respect to the body housing (3). The diffuser vane (15) includes: a connecting part (6) which is arranged in the diffuser flow path (14a) so as to be apart from the flow path (14a) in a peripheral direction and which connects the body housing (3) with the lid housing (5); and a clearance forming part (15a) for forming a clearance between it and the lid housing (5) within a prescribed extended plane distance range (L1) from a rear edge (TE) to a front edge (LE). |
