Industrial fluid circuits and method of controlling the industrial fluid circuits using variable speed drives on the fluid pumps of the industrial fluid circuits
US9032748B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 22, 2007 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Dec 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/85978
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An industrial fluid circulating system having at least one fluid circulation circuit, includes a plurality of pumps connected in parallel to circulate the fluid through each of the fluid circulation circuit, a separate motor driving each pump, a load detector to sense operating loads on the system and each circuit, and a speed control to vary the speed of each motor to thereby vary the pumping capacity of each pump in response to the detected load on the system, each pump of each respective circuit running simultaneously at a substantially similar speed or a predetermined equal reduced speed of the respective circuit or an almost equal reduced speed or a similar reduced speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.