Redundant, dedicated variable speed drive system
US6257833A · kind A · utility
77Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 2000 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jan 4, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2203/0214
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A redundant, modular pump system includes a plurality of substantially identical pump modules. Each module includes constant speed drive circuitry, variable speed drive circuitry and a pump. Expansion is accomplished by adding modules. Reliability is enhanced by being able to operate each pump at constant or variable speed irrespective of whether other modules are being operated at different variable or constant speeds. A common, software driven control element activates drives and other devices in the modules to provide fluid on demand at a pre-selected pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.