Automatic actuator for variable speed pump
US4330238A · kind A · utility
17Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1980 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Mar 4, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2205/05
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An automatic speed-control actuator for variable speed pumps. A rotary or near actuator changes the pump speed to prevent unacceptably low pressures on the pump inlet or unacceptably high pressures on the pump outlet; pressure switches at these locations control the actuator to produce maximum flow rates through the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.