Sealed drive for connecting progressive cavity pump rotors to universal joints
US11371502B2 · kind B2 · utility
1Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2020 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Nov 9, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A progressive cavity pump includes a sealed drive between the rotor and universal joint. The universal joint includes a socket configured to receive a drive shaft of the rotor. A cover, such as a locking nut, is disposed over the connection between the rotor and universal joint. Seals are retained in place by the locking nut to prevent abrasive materials from entering into the interface between the rotor and the universal joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.