发明授权
- 专利标题： Pump for a cryogenic liquid and pump unit and distillation column which are equipped with such a pump
- 专利标题（中）： 用于配备有这种泵的低温液体和泵单元和蒸馏塔的泵
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申请号： US09376004申请日： 1999-08-19
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公开(公告)号： US06250896B1公开(公告)日： 2001-06-26
- 发明人: Jean Yves Lehman
- 申请人： Jean Yves Lehman
- 优先权： FR9810537 19980819
- 主分类号： F04B104
- IPC分类号： F04B104
摘要：
A pump for a cryogenic liquid, in particular liquid oxygen, includes a hydraulic motor which is supplied with a motor liquid under pressure and drives a wheel for pumping the cryogenic liquid, and relative sealing device preventing contamination of the cryogenic liquid by the motor liquid.