Hydraulic amplifier pump for use in ultrahigh pressure liquid chromatography
US6712587B2 · kind B2 · utility
26Cited by
10References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Dec 21, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/326
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hydraulic amplifier system for an ultra-high pressure liquid chromatography system. The hydraulic amplifier system includes a hydraulic cylinder comprising a primary piston chamber in which a primary piston is disposed and a secondary piston chamber in which a secondary piston is disposed. The cross-sectional area of the primary piston is larger than the cross-sectional area of the secondary piston. The difference in the cross-sectional areas of the pistons creates an amplification of the pressure in the primary piston chamber and a reduction in flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.