| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a turbine impeller, on which fluid velocity distribution in a blade height direction (span direction) can be uniformed even if a flow rate of fluid flowing in is small. <P>SOLUTION: In the turbine impeller 10, a plurality of blades 12 is radially provided on a rotary shaft 11. The axial length from an upstream side end 12a to a rear edge 14 of the blade 12 is longer than a mean length of the tip and the hub at an intermediate position 14c of the tip 14a and the hub 14b, and a rear edge blade angle at the intermediate position 14c is larger than that of the tip and the hub, and has a maximum value between the tip and the hub. <P>COPYRIGHT: (C)2012,JPO&INPIT |
