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公开(公告)号：US10082444B2
公开(公告)日：2018-09-25
申请号：US15033007
申请日：2014-10-27
IPC分类号： F02C7/22 , G01M15/00 , B64D37/00 , B64D37/14 , B64D37/32 , F02C7/232 , F16K37/00 , B64D37/02 , G01L19/00
CPC分类号： G01M15/00 , B64D37/00 , B64D37/005 , B64D37/02 , B64D37/14 , B64D37/32 , F02C7/232 , F05D2260/80 , F16K37/00 , F16K37/005 , G01L19/0092
摘要： A method for detecting a failure in a fuel return valve of an aircraft engine fuel circuit, the fuel circuit including a fuel tank, an engine fuel system connected to the fuel tank capable of delivering a flow of fuel to the engine depending on a speed of the engine, a fuel return pipe connected between the engine fuel system and the fuel tank, a fuel return valve arranged to switch between an open and closed position, the valve being capable of blocking the fuel return pipe in the closed position, and of bringing the fuel return pipe into communication with the fuel tank in the open position, the method including measuring a pressure of the flow of fuel from the fuel tank, and if the measured pressure is lower than a predefined threshold, measuring the engine speed.
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公开(公告)号：US10309313B2
公开(公告)日：2019-06-04
申请号：US14909646
申请日：2014-07-31
摘要： A fuel circuit of an aircraft engine including a fuel tank; an engine fuel system including a low-pressure pump and a high-pressure pump, and a fuel recirculating pipeline connected to the engine fuel system; and a fuel recirculating valve arranged so as to switch between an open position and a closed position according to the pressure differential of the low-pressure pump, the valve being able to obstruct the fuel recirculating pipeline in the closed position, and to bring the fuel recirculating pipeline into communication with the fuel tank in the open position.
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