| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: invention relates to pump production. Proposed radial flow impeller (1) comprises vanes (3), first wall (2) coupled with vanes (3) and furnished with hole (4) for flow to pass through wall (2) to vanes (3), and second wall (5) coupled with vanes (3) to couple radial flow impeller (1) with its drive. Note here that radial extension of vanes (3) decreases in steps from first wall (2) towards second wall (5) so that vanes (3) comprise, nearby first wall (2), first section (a) whereon radial extension of vanes (3) does not vary towards second wall (5). Note also that vanes (3) comprise, nearby second wall (5), second section (b) whereon radial extension of vanes (3) does not vary towards first wall (2). Vanes (3) comprise the step between first section (a) and second section (b). Mind that radial extension of the vanes decreases along vanes (3) and first wall (2) coupled with vanes and furnished with hole (4) for flow to pass through wall (2) to vanes (3), and along second wall (5) coupled with vanes (3) to couple radial flow impeller (1) with its drive. ^ EFFECT: higher efficiency. ^ 9 cl, 2 dwg |
