Gas pressurized liquid pump with intermediate chamber
US6186745A · kind A · utility
14Cited by
16References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1999 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Apr 28, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04F1/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The multi-chamber liquid pump of the present invention includes an input chamber, an intermediate chamber and a liquid output chamber. Pressurized gas provides the motive force for outputting liquid from the pump, such that liquid is output at a constant flow rate during pump operation. Liquid flows into the input chamber, through one or more valves into the intermediate chamber, and through one or more subsequent valves to the output chamber while liquid is constantly output from the output chamber. The system controller provides control signals to the valves to facilitate the pump's continual operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.