| 发明名称 | Surge margin control | ||
| 摘要 | A gas turbine engine control system comprising a variable stator vane schedule for normal operation of the gas turbine engine. The system is configured to generate an arm signal indicating potential shaft break. Then the system is configured to alter the variable stator vane schedule to slew each variable stator vane to decrease the available surge margin in response to the arm signal. Or the system is configured to limit a response rate of a variable stator vane actuator in response to the arm signal. Or the system is configured to alter the variable stator vane schedule and limit the response rate of the actuator. | ||
| 申请公布号 | US9341076(B2) | 申请公布日期 | 2016.05.17 |
| 申请号 | US201213493433 | 申请日期 | 2012.06.11 |
| 申请人 | ROLLS-ROYCE plc | 发明人 | Rowe Arthur L.;Redfern Christopher |
| 分类号 | F01D21/06;F01D17/16 | 主分类号 | F01D21/06 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A gas turbine engine control system comprising: a nominal variable stator vane schedule for normal operation of the gas turbine engine, and an altered variable stator vane schedule for decreasing the available surge margin of the gas turbine engine, the system is configured to: generate an arm signal indicating potential shaft break; andswitch from the nominal variable stator vane schedule to the altered variable stator vane schedule to slew each variable stator vane to decrease the available surge margin in response to the arm signal. | ||
| 地址 | London GB | ||