A method for monitoring the extent of coking at a seal with a gas generator shaft

摘要

The present invention provides a gas generator comprising a gas generator comprising a rotary shaft and an injection wheel attached to the shaft, a fuel injection manifold designed to carry fuel to the injection wheel, a seal between the injection wheel and the fuel injection manifold (1000) for monitoring the degree of coking in a dynamic seal of a turbine engine, the dynamic seal being designed to provide a dynamic seal of the turbine engine. The method comprises the steps of measuring the rotational speed of the shaft of the gas generator during the automatic rotation phase of the turbine engine (1100) and determining the coking with a dynamic seal based on a change in the rotational speed measured over time And a step (1200) of determining the extent of the content of the content. The invention further relates to a turbine engine equipped with a monitoring system.