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。