| 发明名称 |
ROTARY PUMP WITH AXIALLY DISPLACEABLE, CLOSEABLE ROTOR |
| 摘要 |
A centrifugal pump assembly has an electric drive motor (2) and at least one impeller (10; 10′), which is movable in an axial direction (X) between at least two functional positions. In one functional position a flow path through the impeller (10; 10′) is essentially closed and in another functional position the flow path through the impeller (10; 10′) is opened. The impeller (10; 10′) in a first functional position is held by a magnetic force (FM) or a spring force and in a second functional position is held by a hydraulic force (FH) produced by a delivered fluid. An impeller is provided for the centrifugal pump assembly. |
| 申请公布号 |
US2016273542(A1) |
申请公布日期 |
2016.09.22 |
| 申请号 |
US201414392246 |
申请日期 |
2014.06.25 |
| 申请人 |
GRUNDFOS HOLDING A/S |
发明人 |
BLAD Thomas |
| 分类号 |
F04D29/042;F04D15/00;F04D29/42;F04D13/06 |
主分类号 |
F04D29/042 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A centrifugal pump assembly comprising:
an electric drive motor; at least one impeller movable in an axial direction between at least two functional positions, wherein in one functional position a flow path through the impeller is essentially closed and in another functional position the flow path through the impeller is opened, wherein the impeller in a first functional position is held by a magnetic force or a spring force and in a second functional position is held by a hydraulic force produced by a delivered fluid. |
| 地址 |
Bjerringbro DK |
