| 摘要 |
A radial compressor (1) comprises an impeller (2) having an impeller axis (3) about which the impeller (2) rotates to compress a fluid, an inlet (12) in flow communication with the impeller (2), an outlet (14) in flow communication with the impeller (2), restriction means (6) positionable within the inlet (12), and an inducer (4) defined by the cross-sectional area over which the fluid impacts the impeller (2) when the inlet (12) is in an unrestricted condition (8). The restriction means (6) is adjustable so as to reduce the cross-sectional area of the inlet (12) adjacent the inducer (4) and so as to cause a fluid having a mass velocity to impact the impeller (2) whilst the mass velocity of the fluid comprises a non-uniform distribution across the cross-sectional area of the inducer (4). |
