专利名称：METHOD AND DEVICE TO AVOID
TURBOFAN INSTABILITY IN A GAS TURBINE
ENGINE
发明人：HURWITZ, Wayne,LEVASSEUR, Glenn
申请号：US2006039798
明珠塔申请日：20061012
月亮儿童画公开号：WO08/045052P1
公开日：
杨州
20080417一路行
减少压力专利内容由知识产权出版社提供
职业健康管理摘要：A turbofan engine control system is provided for managing a fan operating line. The engine (10) includes a spool having a turbine houd in a core nacelle (12). A turbofan (20) is coupled to the spool (14). A fan nacelle (34) surrounds the turbofan and core nacelle and provides a bypass flow path having a nozzle exit area (40). A controller (50) is programmed to effectively change the nozzle exit area in respon to an undesired turbofan stability margin which may result in a stall or flutter condition. In one example, the physical nozzle exit area is incread at the undesired stability condition in which the airflow into the engine creates a destabilizing pressure gradient at the inlet side of the turbofan. A turbofan pressure ratio, turbofan pressure gradient, low spool speed and throttle position are monitored to determine the undesired turbofan stability margin.
申请人：HURWITZ, Wayne,LEVASSEUR, Glenn
时尚都市>天下最二地址：One Financial Plaza Hartford, CT 06101 US,120 Ardmore Road West Hartford, CT 06119 US,51 Nelkin Road Colchester, CT 06415 US
国籍：US,US,US
代理机构：GOTTSCHALK, William, S.更多信息请下载全文后查看
