Pumping unit and method for controlling such a pumping unit
US11204036B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2013 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Feb 2, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2270/19
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pumping installation includes at least one first positive-displacement machine and one second positive-displacement machine, as well as a control module, in which installation a gas is evacuated from an enclosed volume by means of the first positive-displacement machine and/or the second positive-displacement machine. The pumping installation includes at least one control valve controlled by the control module and a pressure sensor for sensing the value of the pressure at the outlet of the first positive-displacement machine and/or a temperature sensor for sensing the value of the temperature at the outlet of the first positive-displacement machine in order to control the flow of gas between the enclosed volume and the outlet of the pumping installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.