发明授权
- 专利标题: Submersible pump with improved sealing means
- 专利标题(中): 潜水泵具有改进的密封方式
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申请号: US884801申请日: 1978-03-09
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公开(公告)号: US4224009A公开(公告)日: 1980-09-23
- 发明人: Attilio Grandi
- 申请人: Attilio Grandi
- 申请人地址: ITX La Spezia
- 专利权人: Termomeccanica Italiana S.p.A.
- 当前专利权人: Termomeccanica Italiana S.p.A.
- 当前专利权人地址: ITX La Spezia
- 优先权: ITX12520A/77 19770321
- 主分类号: F04D13/04
- IPC分类号: F04D13/04 ; F04D13/08 ; F04D29/10 ; F01D11/00 ; F01D15/08
摘要:
A submersible pump provided with improved labyrinth to avoid undesirable leakage of a pump fluid into the hydraulic motor of the pump and to avoid leakage of hydraulic motor into the pump.
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