公开(公告)号：US09470604B2

公开(公告)日：2016-10-18

申请号：US14299392

申请日：2014-06-09

Applicant: SNECMA

Inventor： Christophe Javelot ,  Mohamed Boutaleb ,  Cedrik Djelassi ,  Victor Henry

IPC: G01M15/00 ,  G01M15/04 ,  F01D21/20 ,  F02C7/232 ,  F02C9/46

CPC classification number: G01M15/042 ,  F01D21/20 ,  F02C7/232 ,  F02C9/46 ,  F05D2260/83 ,  Y02T50/671

Abstract: A method of testing an engine fuel supply cutoff valve includes: 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; and 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.

Abstract translation: 一种测试发动机燃料供应截止阀的方法包括：检测燃料供应切断命令; 指示关闭燃油供应截止阀; 指示将燃料计量阀保持在打开位置预定时间; 指示在预定时间后关闭燃油计量阀; 在执行前述步骤期间测量发动机操作参数; 以及将测量的参数与预定阈值进行比较，以便通过燃料供应截止阀的正常操作来确定发动机操作参数是否对应于发动机燃料供应切断。

公开(公告)号：US20150152790A1

公开(公告)日：2015-06-04

申请号：US14409822

申请日：2013-06-20

Applicant: SNECMA

Inventor： Christophe Javelot ,  Cedrik Djelassi ,  Bruno Robert Gaully ,  Ismail Sylla

IPC: F02C9/26

Abstract: A method of adjusting a fuel flow rate in a turbine engine propelling an aircraft, including: obtaining a first estimate of a flow rate of fuel injected into a combustion chamber of the turbine engine propelling an aircraft and as delivered by a fuel metering device of the turbine engine; obtaining a second estimate of the fuel flow rate, which second estimate is more accurate than the first estimate for at least one range of fuel flow rate values and being delivered by an estimator device having a flow meter; and adjusting the fuel flow rate threshold value with help of a difference evaluated between the first estimate and the second estimate, the threshold value being for use in an open loop for regulating the turbine engine.

Abstract translation: 一种调节在推动飞行器的涡轮发动机中的燃料流量的方法，包括：获得喷射到涡轮发动机的燃烧室中的燃料的流速的第一估计，该涡轮发动机推进飞行器并且由燃料计量装置 涡轮发动机; 获得所述燃料流量的第二估计，所述第二估计比所述燃料流量值的至少一个范围的所述第一估计更准确，并且由具有流量计的估计装置递送; 以及借助于在所述第一估计和所述第二估计之间评估的差异来调整所述燃料流量阈值，所述阈值用于调节所述涡轮发动机的开环。