Progressive cavity pump with uncoupled natural frequency
US9506468B2 · kind B2 · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jun 18, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2251/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A progressive cavity pump comprising a casing, a helical stator including a helical cylinder and a helical rotor capable of rotating inside said helical cylinder. The helical stator also comprises at least one compensator arranged in said casing, between the casing and said helical cylinder; said helical cylinder and said compensator being deformable in a direction perpendicular to the longitudinal axis of the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.