Apparatus and method for pumping supercritical fluid and measuring flow thereof
US5755559A · kind A · utility
54Cited by
53References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jun 26, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/0441
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a piston pump for pumping liquid carbon dioxide at a temperature below 30 degrees Fahrenheit and pressures at least as high as 7500 psi, the volume leaving the pump is determined by measuring only pressure or other parameter related to flow and movement of the plunger. The position of the piston is measured and the resulting displacement is integrated to determine volume of fluid pumped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.