公开(公告)号：US20160195025A1

公开(公告)日：2016-07-07

申请号：US14911318

申请日：2014-08-26

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Andre M. Ajami ,  Jason Eric Turner ,  Kenneth W. Winston

IPC: F02C9/26 ,  F02C9/28

CPC classification number: F02C9/263 ,  F02C9/28 ,  F05D2260/80 ,  F05D2270/0831 ,  F05D2270/09 ,  F05D2270/092 ,  F05D2270/303 ,  F05D2270/309 ,  G01K3/10 ,  G01K13/02 ,  G01K2013/024

Abstract: A method includes receiving an indication of exhaust gas temperature (EGT) for a gas turbine engine, and determining, by at least one processor, based on the received indication of the EGT, a representation of a second derivative with respect to time of the EGT. The method further includes comparing the representation of the second derivative of the EGT to a threshold value, and determining, based on the comparing, an engine flameout condition of the gas turbine engine. In some embodiments, the at least one processor can determine a representation of a first derivative with respect to time of the EGT. The representation of the first derivative of the EGT can be compared to a threshold value, determined based on the received indication of the EGT, to determine the engine flameout condition.

Abstract translation: 一种方法包括接收燃气涡轮发动机的排气温度（EGT）的指示，以及由至少一个处理器基于接收到的EGT指示确定相对于EGT的时间的二阶导数的表示 。 该方法还包括将EGT的二阶导数的表示与阈值进行比较，并且基于比较来确定燃气涡轮发动机的发动机熄火状态。 在一些实施例中，至少一个处理器可以确定关于EGT的时间的一阶导数的表示。 可以将EGT的一阶导数的表示与基于EGT的接收指示确定的阈值进行比较，以确定发动机熄火状况。