| 摘要 |
PURPOSE: A turbo machine having a variable angle fluid guiding device is provided to greatly enhance the performance of a diffuser by the use of adjustable angle diffuser vanes for varying the size of an opening between adjacent vanes with widely setting angle of the vanes, to supply a pump system having a wider operating range for flow rate than an existing pump system, and to secure excellent effective in the low flow rate range causing surge and other serious operational problems of the entire system. CONSTITUTION: In a fluid pump having a plurality of variable angle diffuser vanes rotatively arranged at a pivot to adjust the angle, the length of the diffuser vane is same or smaller than a value obtained from the number of diffuser vanes installed to the pump by separating the length of circumference set from a vane attachment spot to the radial direction. Plural variable angle diffuser vanes are arranged in the normal direction around the circumferential length to overlap the front end edge of one vane on the rear end edge of the adjacent vane. |
