Method for monitoring fluid filter of e.g. fuel circuit, of aircraft engine, involves detecting absence of fluid flow through filter, and estimating filter clogging degree based on difference between values of signal

摘要

The method involves detecting absence of fluid flow (Q) through a filter (2) for predetermined time. A first value of a measurement signal (deltaPmes) is obtained when the fluid does not flow through the filter. A second value of the signal supplied by a differential pressure sensor (3) measuring differential pressure (deltaP) through the filter is obtained when the fluid flows through the filter. A clogging degree of the filter is estimated based on a difference between the values of the signal. The clogging degree of the filter is estimated as a function of the second value. Independent claims are also included for the following: (1) a computer program comprising a set of instructions to execute a method for monitoring a filter of a fluid circuit of an aircraft engine (2) a computer-readable recording medium comprising a set of instructions to execute a method for monitoring a filter of a fluid circuit of an aircraft engine (3) an electronic unit for monitoring a filter of a fluid circuit of an aircraft engine.