| 发明名称 | Downhole motors and pumps with asymmetric lobes | ||
| 摘要 | In an aspect, the disclosure provides an apparatus for use downhole. In one aspect the apparatus includes a rotor with lobes disposed in stator with lobes, wherein at least one of the contours of the rotor lobe and the contour of the stator lobe is asymmetric. | ||
| 申请公布号 | US8888474(B2) | 申请公布日期 | 2014.11.18 |
| 申请号 | US201113227954 | 申请日期 | 2011.09.08 |
| 申请人 | Baker Hughes Incorporated | 发明人 | Hohl Carsten;Grimmer Harald |
| 分类号 | F01C1/10;F03C2/00;F03C4/00;F04C2/00;F03C2/08;F04C2/107;F04C2/08;F04C13/00;E21B4/02 | 主分类号 | F01C1/10 |
| 代理机构 | Cantor Colburn LLP | 代理人 | Cantor Colburn LLP |
| 主权项 | 1. An apparatus for use downhole, comprising: a stator including a stator lobe having a contour along an inner surface of the stator; and a rotor in the stator, the rotor including a rotor lobe having a contour on an outer surface of the rotor, wherein the contour of the rotor lobe is asymmetric and the rotor lobe includes a first side and a second side and wherein geometry of the first side is configured to provide a loading surface and the geometry of the second side is configured to provide a sealing surface. | ||
| 地址 | Houston TX US | ||