Anti-reverse mechanism for mud motor
US9217286B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Jun 29, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B4/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed are systems and methods for preventing backdriving of a mud motor through its output. One disclosed mud motor may include a housing having a longitudinal axis, a rotor disposed within the housing and configured to rotate generally about the longitudinal axis in a first direction with respect to the housing when a flow of fluid is provided to the power generator, an output shaft at least partially disposed within the housing and coupled to the rotor, and an anti-reverse bearing arranged radially between the output shaft and the housing and configured to support the output shaft within the housing and allow rotation of the output shaft in the first direction but resist rotation of the output shaft in a second direction about the longitudinal axis with respect to the housing, the second direction being opposite the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.