Best-fit affinity sensorless conversion means or technique for pump differential pressure and flow monitoring
US9938970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2015 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/0061
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides apparatus, including a hydronic sensorless pumping system, that features a signal processor or processing module configured to receive signaling containing information about motor readout values of power and speed, and also about pump and system characteristics equations together with empirical power equations that are constructed by a polynomial best-fit function together with pump affinity laws based upon a pump curve published by a pump manufacturer; and determine corresponding signaling containing information about a pump or system pressure and a flow rate at the motor readout values of power and speed, based upon the signaling received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.