| 摘要 |
When pumping liquids or gases, it is often necessary to provide the inlet to the pumping system with some kind of filter device to separate solids. Then, these solids have to be cleaned away from the filter device in some way, which can be a time-consuming and labour-demanding operation. The invention provides a filter device comprising a hollow cylindrical body characterized in that it is rotatable around an axis by a suction force applied in the axial direction by the action of an inner turbine structure with capacity to capture solids from a liquid or a gas, which turbine structure is made of parts movable in relation to each other in accordance with the force applied. When the suction force applied is removed, the filter device according to the invention has the ability to release captured solids. |
