Automatic control system for centrifugal pumps
US4257745A · kind A · utility
14Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1978 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Sep 1, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D15/0263
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is a unique combination of a pressure switch, a temperature switch, and a check valve which act to automatically control the on-off operation of a centrifugal pump in response to an external flow demand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.