| 发明名称 | Progressing cavity stator with metal plates having apertures with englarged ends | ||
| 摘要 | Progressing cavity devices and systems are provided. In one embodiment, a system includes a metal stator of a progressing cavity device. The metal stator includes metal plates with apertures that are rotationally offset to form a winding rotor cavity. At least one of the apertures that form the winding rotor cavity has an elongated profile with enlarged ends having widths greater than that across the middle of the at least one aperture. Additional systems, devices, and methods are also disclosed. | ||
| 申请公布号 | US9133841(B2) | 申请公布日期 | 2015.09.15 |
| 申请号 | US201313861248 | 申请日期 | 2013.04.11 |
| 申请人 | Cameron International Corporation | 发明人 | Twidale Derek L.;Delpassand Majid S.;Vogel Leonard J.;Le Allen T. |
| 分类号 | F04C2/00;F04C13/00;F04C2/107 | 主分类号 | F04C2/00 |
| 代理机构 | Eubanks PLLC | 代理人 | Eubanks PLLC |
| 主权项 | 1. A system comprising: a metal stator of a progressing cavity device, the metal stator including a plurality of metal plates with apertures that are rotationally offset to form a winding rotor cavity, wherein at least one of the apertures that form the winding rotor cavity has an elongated profile with a major axis, a minor axis, and enlarged ends having widths greater than that of the minor axis across the middle of the at least one aperture, and wherein the at least one aperture exhibits rotational symmetry but not line symmetry. | ||
| 地址 | Houston TX US | ||