Compressor startup control
US4068980A · kind A · utility
19Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Oct 1, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C28/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A positive displacement gas compressor includes an inlet throttling valve which has an actuator responsive to a pressure fluid signal for closing the throttling valve. A control circuit for supplying pressure fluid to close the throttling valve includes a time delay device and a pilot operated valve which vents the pressure fluid signal holding the throttling valve closed after a predetermined time period commencing with startup of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.