| 摘要 |
<p>A centrifugal air compressor (11) has an annular air flow path (14) of progressively increasing diameter and progressivley diminishing cross-sectional area in which a plurality of internal compression-diffusion stages (30a to 30f) are provided. The stages of progressively greater diameter are defined by sets (29a to 29h) of impeller blades (12) which alternate with sets (32a to 32h) of stator blades (13) along the air flow path (14) and each such stage (30a to 30f) mean radius increase between the inlet side (35i) and the outlet side (35o) less than 15%. The multi-stage construction combines higher isentropic efficiency with reduced size and may be used as a component of a gas turbine engine (18) or a turbocharger (57) or for other purposes requiring gas compression.</p> |
