Flow rate accuracy of a fluidic delivery system
US8740182B2 · kind B2 · utility
3Cited by
48References
30Claims
0Family size
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Key dates
| Filing date | Feb 18, 2012 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Feb 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86389
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Improving the accuracy of the flow rate of a valve in a fluidic delivery device in which a desired flow rate may be achieved by varying the duty cycle of the valve. The flow rate of fluid delivery from the valve over its lifetime is stabilized by minimizing the voltage OPENING time of the valve to account for valve and piezoelectric actuator drift. Also, the valve OPENING time of one or more fluidic parameters that impact on the flow rate delivery by the valve and differ among fluidic delivery devices is compensated to optimize the flow rate accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.