发明名称 |
VARIABLE AREA FAN NOZZLE FOR ACCOMMODATING A FOREIGN OBJECT STRIKE EVENT |
摘要 |
A gas turbine engine system includes a fan (14) and a fan bypass passage (30) downstream of the fan (14) for conveying a bypass airflow from the fan. A nozzle (40) associated with the fan bypass passage (30) includes a plurality of different positions that influence the bypass air flow. One or more sensors (54) near the fan (14) produce a signal representative of a foreign object F near the fan (14). A controller (44) commands the nozzle (40) to move to a desired one of the plurality of different positions in response to the signal from the sensor (54) to change a pressure ratio across the fan (14) to thereby reduce a mechanical stress on the fan (14).
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申请公布号 |
US2010003121(A1) |
申请公布日期 |
2010.01.07 |
申请号 |
US20090442569 |
申请日期 |
2009.03.24 |
申请人 |
BERRYANN ANDREW P;MORFORD STEPHEN A |
发明人 |
BERRYANN ANDREW P.;MORFORD STEPHEN A. |
分类号 |
F02K1/15;F02K3/06 |
主分类号 |
F02K1/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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