发明名称 |
PROGRESSIVE CAVITY PUMP |
摘要 |
Techniques are generally described for a progressive cavity pump and a methods for making and using a progressive cavity pump. In an example, a progressive cavity pump may include a stator, a rotor and/or a bearing. The stator may include a helical shaped interior with a first pitch. The rotor may be inside the stator. The rotor may include a helical shaped exterior with a second pitch. The second pitch may be different from the first pitch. The rotor may be effective to rotate with respect to the stator and effective to move eccentrically within the stator to define at least one cavity inside the stator. At least one bearing may be between the rotor and the stator. The bearing may be sized and shaped so that the rotor is effective to rotate inside the bearing and the bearing is effective to move eccentrically along with the rotor. |
申请公布号 |
US2014369875(A1) |
申请公布日期 |
2014.12.18 |
申请号 |
US201314124850 |
申请日期 |
2013.04.20 |
申请人 |
INDIAN INSTITUTE OF TECHNOLOGY MADRAS |
发明人 |
Samad Abdus;Karthikeshwaran Ramasamy |
分类号 |
F04C2/107;F16C17/18 |
主分类号 |
F04C2/107 |
代理机构 |
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代理人 |
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主权项 |
1. A progressive cavity pump comprising:
a stator, the stator including a helical shaped interior with a first pitch; a rotor inside the stator, the rotor including a helical shaped exterior with a second pitch, wherein the second pitch is different from the first pitch, wherein the rotor is effective to rotate with respect to the stator and effective to move eccentrically within the stator to define at least one cavity inside the stator; and at least one bearing between the rotor and the stator, wherein the bearing is sized and shaped so that the rotor is effective to rotate inside the bearing and the bearing is effective to move eccentrically along with the rotor. |
地址 |
CHENNAI IN |