Method and apparatus for controlling turbocompressors to prevent
US4831534A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1986 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D27/0284
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
When controlling a turbocompressor to prevent pumping there is generated a control signal which controls a blowoff or recycle valve attached to the compressor outlet by continuously monitoring the working point or operating condition coordinates and comparing the coordinates with a blowoff line defined by operating conditions producing a pumping. Upon the occurrence of a pumping surge, a signal is generated which can control for instance the quick opening of the blowoff valve. In addition, according to the invention the signal generated upon the occurrence of a pumping surge is also utilized to initiate a new fixation of the blowoff line or the pumping limit line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.