发明授权
- 专利标题： Vertical pump
- 专利标题（中）： 立式泵
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申请号： US09868520申请日： 2001-06-19
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公开(公告)号： US06565335B1公开(公告)日： 2003-05-20
- 发明人: Yoshio Yano , Isamu Aotani , Yoshikazu Yasuda
- 申请人： Yoshio Yano , Isamu Aotani , Yoshikazu Yasuda
- 优先权： JP11-338380 19991021; JP2000-105668 20000218
- 主分类号： F04B1700
- IPC分类号： F04B1700
摘要：
A vertical pump which has a rotating body having an impeller arranged with its axial center being vertical, and a cylindrical rotor fixed to an upper portion of the impeller with their axial center being, aligned with each other. A main portion of the cylindrical rotor is composed of a good conductor. A casing for housing the rotating body with a gap rotatively and a rotary magnetic field generator facing the cylindrical rotor for applying a rotational force, to the cylindrical rotor are provided. As a result, the rotating body including the impeller and the cylindrical rotor is rotated without contacting with the casing.