Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps
US9334691B2 · kind B2 · utility
9Cited by
21References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2011 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Apr 27, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49242
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.