Roughing pump method for a positive displacement pump
US9017040B2 · kind B2 · utility
1Cited by
10References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2010 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2270/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In order to provide a simple and energy-efficient rough pumping method for a displacement pump (10), intended to generate a maximum differential pressure (ΔPmax) between the inlet (18) and the outlet (20) of the displacement pump (10), the rotational speed (Ω) of the displacement pump (10) is adjusted such that the maximum differential pressure (ΔPmax) to be generated that the power input (3, 4) of the displacement pump (10) approximates the minimum power (2) physically required for compressing the gas in order to establish the maximum differential pressure (ΔPmax).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.