| 摘要 |
A centrifugal pump has a body, a semi-toroidal chamber arranged in it, with peripheral and central cylindrical sections, impeller with driven and drive discs installed in the body, circular lug with end and cylindrical surfaces provided on the last of those, and impeller blades. The impeller blades are installed on the end surface of the lug and are placed in the semi-toroidal chamber. The end surface of the lug is arranged as a section of toroidal surface, and the cylindrical surface of the lug is placed in the semi-toroidal chamber with formation of slot gap with one of the cylindrical sections. |
