| 摘要 |
<p>A fuel staging system comprises a splitter valve (10) arranged to split an input fuel stream into a pilot fuel stream and a main fuel stream, the splitter valve (10) comprising a spool (36) slidable within a bore (38), the spool (36) and bore (38) together defining first and second control chambers (42, 44), the fluid pressures in which determine the position occupied by the spool (36), the system further comprising a control line (34) which, in use, controls fuel delivery through a plurality of main burners (20), the fluid pressure in the control line (34) being a combination of the fluid pressures in the first and second control chambers (42, 44).</p> |
