发明申请
- 专利标题: Pump rotor seal apparatus and method
- 专利标题(中): 泵转子密封装置及方法
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申请号: US11405525申请日: 2006-04-18
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公开(公告)号: US20070243091A1公开(公告)日: 2007-10-18
- 发明人: Drew Van Norman , Curt Hagen
- 申请人: Drew Van Norman , Curt Hagen
- 专利权人: SPX CORPORATION
- 当前专利权人: SPX CORPORATION
- 主分类号: F01C1/08
- IPC分类号: F01C1/08
摘要:
An improved pump and pumping method includes a circumferential positive displacement pump having two counter rotating rotors. A clearance gap is defined between the rotor shaft, and a body hub portion of the body that forms the chamber.
公开/授权文献
- US07563087B2 Pump rotor seal apparatus and method 公开/授权日:2009-07-21
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