Down hole motor
US4415316A · kind A · utility
36Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1981 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Apr 27, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7052
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a Moineau type fluid motor one of the relatively rotatable elements is made of a deformable material, and axial movement of tapered surfaces within the element, caused by variation in the fluid pressure, causes adjustment of the sealing force in the motor in accordance with the fluid pressure level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.