LOBED ROTOR WITH CIRCULAR SECTION FOR FLUID-DRIVING APPARATUS |
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| 申请号 | US15601193 | 申请日 | 2017-05-22 | 公开(公告)号 | US20180223598A1 | 公开(公告)日 | 2018-08-09 |
| 申请人 | Roper Pump Company; | 发明人 | Tyson Bentley Anderson; Edmond Tate Coghlan; Zachariah Paul Rivard; | ||||
| 摘要 | A fluid displacement apparatus includes a stator section with a rotor therein. The stator section includes a cylindrical casing, a helically-convoluted chamber section within the cylindrical casing, and a rigid sleeve within the cylindrical casing and separate from the helically-convoluted chamber section. The rigid sleeve includes a circular internal bore. The rotor is rotatably disposed within the cylindrical casing. The rotor includes a helically-lobed section disposed within the helically-convoluted chamber section, and a circular cylinder section disposed within the rigid sleeve. The circular cylinder section provides a fluid passageway between the rigid sleeve and the circular cylinder section. Side loads from the rotor are distributed along a contact line at any point of rotation of the circular cylinder section within the rigid sleeve. | ||||||
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