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公开(公告)号:US06799112B1
公开(公告)日:2004-09-28
申请号:US10678919
申请日:2003-10-03
IPC分类号: G06F1900
CPC分类号: F01D25/18 , F01D11/06 , F01D21/003 , F01D25/183 , F02C7/06 , F05D2270/301 , F05D2270/3015
摘要: A method is provided for detecting airflow reversal in a sump system of a gas turbine engine. The method includes positioning a first pressure sensor at a sump vent to sense a discharge flow pressure from a sump within the sump system, positioning a second pressure sensor in the sump to sense a pressure in the sump, comparing the sensed pressures obtained from the first and second pressure sensors to determine a pressure difference, and comparing the pressure difference to a predetermined maximum allowable pressure difference.
摘要翻译: 提供了一种用于检测燃气涡轮发动机的油底壳系统中的气流反转的方法。 该方法包括将第一压力传感器定位在集油口处以感测来自集油槽系统内的集油槽的排出流量压力,将第二压力传感器定位在油底壳中以感测油底壳中的压力,将从第一 和第二压力传感器,以确定压力差,并将压力差与预定的最大允许压力差进行比较。