| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a compressor increasing the compressor efficiency when the flow rate of air flowing into an impeller-housing chamber is small, and inhibiting deterioration of the compressor efficiency when the flow rate is large. <P>SOLUTION: A compressor part 30 includes a diffuser chamber 54, a scroll chamber 56 and a diffuser vane 38. The diffuser vane 38 is a single vane and is arranged so that the angle θ representing the front end position on the impeller-housing chamber 52 side is in the range of 0°≤θ≤180°. When the flow rate is small, since the air flow coming out of an impeller 32 is deflected to decelerate by the diffuser vane 38 and is raised in pressure, the compressor efficiency increases. Meanwhile, when the flow rate is large, since the diffuser vane 38 is the single vane and there is no throat diameter, the air flow is not choked and deterioration of the compressor efficiency can be inhibited. <P>COPYRIGHT: (C)2013,JPO&INPIT |
