| 摘要 |
Guide ring of multi-stage impeller pump composed of centrifugal and centripetal parts joined by a spherical blade bridge, where the spiral part of the centrifugal part is divided by centrifugal blades into centrifugal ducts, which are connected with the corresponding bridge passage and centripetal ducts, characterised in that its centrifugal blades (8) are shaped spirally along an arch, which corresponds to the arch of the spiral part (7) of the centrifugal part and, at the same time, they constitute external walls of centrifugal ducts (9) and internal walls of the preceding bridge ducts (10), where from the outside, the bridge ducts (10) are limited by the stage casing internal wall (2).<IMAGE>
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