| 摘要 |
The pump is of the centrifugal or half-shaft pumps type forliquids, in particular for waste waters. They have greater output,resistance wear and long life. The pump propeller (3) has a hub(4) supplied with one or more blades (5) the guiding edges (6) ofwhich are strongly bent backwards. One or more notches on load (8)are fabricated in the engaging body of pump (1), on its surface(7) which is opposite the blades (5).5 claims, 4 figures |
