Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals
US4795314A · kind A · utility
190Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Aug 24, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D7/0676
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A pump control apparatus including a variable speed pump controllable in response to a pump drive signal, a signal generator generating a commanded flowrate signal indicating desired flowrate of the pump, a flowrate sensor providing a sensed flowrate signal indicating sensed flowrate of the pump, and an integrator connected to the sensor and generator to receive and integrate the commanded flowrate signal and the sensed flowrate signal and to provide the pump drive signal based on the difference in integrated values of the signals so as to achieve desired commanded volume over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.