Positive displacement motor with radially constrained rotor catch
US9695638B2 · kind B2 · utility
4Cited by
17References
26Claims
0Family size
Inventors
Key dates
| Filing date | Nov 16, 2012 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Nov 16, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C15/0065
- 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, where the apparatus for constraining is operable with the rotor catch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.