Abstract: The present invention relates to a device (1) for measuring the oxidation stability and/or the thermal stability of any type of fuel, including diesel fuel, by miniaturization of the test system by use of a microfluidic technique. The physical phenomena to which fuels are subjected are reproduced by the microchannels (12) of the microfluidic chip (7), which comprise a representation of at least one of the fuel injection and the fuel circulation for a drive system, an internal-combustion engine or an aircraft reactor for example.

Abstract: The present invention relates to a system for characterizing at least one of the oxidation stability and the thermal stability of a fuel sample. The system comprises at least a device (MSIE) for performing an electrochemical impedance spectroscopy measurement in the sample, and a device (MDM) for determining deposit mass forming in the fuel sample. The invention further relates to a method for characterizing at least one of the oxidation stability and the thermal stability of the fuel over time, from measurements performed by the system according to the invention.

Abstract: The present invention is a device for analyzing sensitivity to deposit formation in a fuel notably used in aircraft, comprising a tank (10) for the fuel to be analysed, at least one test section (18) with a heated tube (46) along which the fuel flows and a filter (66) associated with a deposit measurement system (68). According to the invention, the device comprises at least two identical test sections (181 to 186) arranged in parallel and a control unit (72) independently controlling at least one of the operating conditions of at least one of the two test sections.

Abstract: The present invention relates to a device (1) for measuring the oxidation stability and/or the thermal stability of any type of fuel, including diesel fuel, by miniaturization of the test system by use of a microfluidic technique. The physical phenomena to which fuels are subjected are reproduced by the microchannels (12) of the microfluidic chip (7), which comprise a representation of at least one of the fuel injection and the fuel circulation for a drive system, an internal-combustion engine or an aircraft reactor for example.

Abstract: The present invention relates to a method for continuously monitoring the degree of progress of oxidation of a fuel, comprising at least the following steps: determining at least one indicator for the progress of the oxidation reaction to be monitored, measuring the content of said indicator for the progress of the oxidation reaction in said fuel, classifying the degree of progress of oxidation of said fuel, determining the measures to be taken as a function of said classification.

Abstract: The present invention is a device for analyzing sensitivity to deposit formation in a fuel notably used in aircraft, comprising a tank (10) for the fuel to be analysed, at least one test section (18) with a heated tube (46) along which the fuel flows and a filter (66) associated with a deposit measurement system (68). According to the invention, the device comprises at least two identical test sections (181 to 186) arranged in parallel and a control unit (72) independently controlling at least one of the operating conditions of at least one of the two test sections.

Abstract: The present invention relates to a method for continuously monitoring the degree of progress of oxidation of a fuel, comprising at least the following steps: determining at least one indicator for the progress of the oxidation reaction to be monitored, measuring the content of said indicator for the progress of the oxidation reaction in said fuel, classifying the degree of progress of oxidation of said fuel, determining the measures to be taken as a function of said classification.