| 发明名称 |
DOWNHOLE ROTARY PUMP STAGE IMPELLER |
| 摘要 |
FIELD: engines and pumps.SUBSTANCE: proposed impeller comprises closed flow sections 1 at impeller inlet 2 and open flow channels 3 at outlet 4. Open flow channels 3 are provided with [-like vanes 5 with shrouds 6, 7 located at bulges of vanes 5.EFFECT: higher head and reliability.2 dwg |
| 申请公布号 |
RU2522141(C1) |
申请公布日期 |
2014.07.10 |
| 申请号 |
RU20130105741 |
申请日期 |
2013.02.11 |
| 申请人 |
KOREPANOV ANDREJ GENNAD'EVICH;KISELEV PAVEL ARKAD'EVICH;FOKANOV ANATOLIJ NIKOLAEVICH |
发明人 |
KOREPANOV ANDREJ GENNAD'EVICH;KISELEV PAVEL ARKAD'EVICH;FOKANOV ANATOLIJ NIKOLAEVICH |
| 分类号 |
F04D29/22 |
主分类号 |
F04D29/22 |
| 代理机构 |
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