Method of and an apparatus for controlling fuel flow in a one spool type gas turbine with a heat exchanger
US4167095A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1977 |
| Grant date | Sep 11, 1979 |
| Priority date | — |
| Expiry date | Sep 20, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C7/26
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of and an apparatus for controlling fuel flow in a one spool type gas turbine with a heat exchanger, particularly applicable during the start-up or acceleration of engine operation. The speed of the gas turbine, temperature at a portion of the gas turbine and compressed air pressure at a portion of the gas turbine are detected as electric signals by sensors. The pressure signal is transmitted to two arithmetic units which perform operations separately to output a starting fuel flow signal Gf.sub.1 and an accelerating fuel flow signal Gf.sub.2, which signals Gf.sub.1 and Gf.sub.2 are alternatively selected by a fuel signal change-over device so that when the speed of the gas turbine is at or above a predetermined value, a reference fuel flow signal Gf corresponding to Gf.sub.1 is transmitted by the change-over device, and when the speed is below the predetermined value, a reference fuel flow signal Gf corresponding to Gf.sub.2 is transmitted by the change-over device. The reference fuel flow signal Gf, after it is compensated by a fuel flow restriction coefficient determined by the temperature signal, is applied to determine fuel flow to the gas turbine by a fuel control ac…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.