| 发明名称 |
MONITORING THE FUEL SUPPLY CUTOFF VALVE FOR AN ENGINE |
| 摘要 |
Method of testing an engine fuel supply cutoff valve, characterised in that it comprises steps to:;detect (E1) a fuel supply cutoff command,;command (E3) to close the fuel supply cutoff valve,;command (E4) to hold the fuel metering valve in the open position for a predetermined time,;command (E5) to close the fuel metering valve after the predetermined time,;measure (E6) an engine operating parameter during performance of the previous steps,;compare (E7) the measured parameter with a predetermined threshold, so as to determine whether or not the engine operating parameter corresponds to an engine fuel supply cutoff by normal operation of the fuel supply cutoff valve. |
| 申请公布号 |
US2014360255(A1) |
申请公布日期 |
2014.12.11 |
| 申请号 |
US201414299392 |
申请日期 |
2014.06.09 |
| 申请人 |
SNECMA |
发明人 |
JAVELOT Christophe;BOUTALEB Mohamed;DJELASSI Cedrik;HENRY Victor |
| 分类号 |
G01M15/04 |
主分类号 |
G01M15/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of testing a fuel supply cutoff valve for an engine, said method comprising:
detecting a fuel supply cutoff command, commanding to close the fuel supply cutoff valve, commanding to hold the fuel metering valve in the open position for a predetermined time, commanding to close the fuel metering valve after the predetermined time, measuring an engine operating parameter during performance of the previous steps, comparing the measured parameter with a predetermined threshold, so as to determine whether or not the engine operating parameter corresponds to an engine fuel supply cutoff by normal operation of the fuel supply cutoff valve. |
| 地址 |
Paris FR |
