Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps
US9482223B2 · kind B2 · utility
6Cited by
23References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2012 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Mar 1, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/80
- 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.