| 发明名称 |
IMPELLER FOR A CENTRIFUGAL PUMP, A CENTRIFUGAL PUMP AND A USE THEREOF |
| 摘要 |
An impeller for a centrifugal pump, the impeller includes a front shroud, a rear shroud, and one or more working vanes therebetween, the front shroud having a front face opposite to the face having the working vanes, the rear shroud having a rear face opposite to the face having the working vanes, the front shroud having an outer circumference and a plurality of front pump-out vanes attached to the front face of the front shroud, the rear shroud having a plurality of rear pump-out vanes attached to the rear face of the rear shroud,
the front pump-out vanes being dimensioned in accordance with an equation:;Σi=1z(li)/D>8, whereZ is the number of front pump-out vanes,l is the vane length measured along the leading surface of each front pump-out vane,D is the outer diameter of the front shroud. |
| 申请公布号 |
US2015308446(A1) |
申请公布日期 |
2015.10.29 |
| 申请号 |
US201514680212 |
申请日期 |
2015.04.07 |
| 申请人 |
c/o Sulzer Management AG |
发明人 |
KOIVIKKO Matti;TIITINEN Kalle;VIRTANEN Sami;AHLROTH Jussi |
| 分类号 |
F04D29/24;F04D29/44;F04D1/00 |
主分类号 |
F04D29/24 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An impeller for a centrifugal pump, the impeller comprising:
a front shroud, a rear shroud, and one or more working vanes therebetween, the front shroud having a front face opposite to the face having the working vanes, the rear shroud having a rear face opposite to the face having the working vanes, the front shroud having an outer circumference and a plurality of front pump-out vanes attached to the front face of the front shroud, the rear shroud having a plurality of rear pump-out vanes attached to the rear face of the rear shroud, the front pump-out vanes being dimensioned in accordance with an equation:
Σi=1z(li)/D>8, where Z is the number of front pump-out vanes, l is the vane length measured along the leading surface of each front pump-out vane, D is the outer diameter of the front shroud. |
| 地址 |
Winterthur CH |
