| 摘要 |
A cover provided for covering a bladed rotor during a testing operation. The cover has a face plate of solid sheet like material having a centrally positioned orifice through which air is drawn by the action of part of blade adjacent to orifice. The remaining part of the blades is in a stalled condition and therefore relatively unloaded. The power required to turn the rotor is therefore reduced in comparison to that required if the cover was not present making testing easier. The cover also acts as a safety shroud preventing personnel coming into contact with the blades as they rotate and containing the rotor in the event of its disintegration. |
