Browse Publications Technical Papers 2000-05-0164
2000-06-12

Two complementary oil analysis systems for thermal engine development 2000-05-0164

A complete solution to approach the problem of oil measurement on a thermal engine is described: - Aeration with the SMAC from D2T Group and developed under French Petrol Institute (IFP) License - Composition with the Oil Sample Analysis OSA2.
The SMAC is a measurement system of aeration based on the difference of gas compressibility and oil compressibility.
The system is connected in serial or in parallel with the engine and an oil small sample is isolated to be analyzed in the compression area.
The SMAC offers the possibility to measure aeration level in each part of the oil thermal engine circuit in few minutes, quantify oil effect on hydraulic push rod and variable valve actuation...
The OSA is actually two instruments in one: optical emission spectrometer and an infrared spectrometer.
The optical emission spectrometers burns a portion of the oil sample and measures sub-microscopic metals. These metals are present due to component wear inside the engine that is being sampled.
The infrared spectrometer scans a portion of the oil sample measures physical properties and contaminants. The onboard computer control both spectrometers, combines the results from each and gives a report with wear metals, contaminants and other physical data like fuel dilution, oxidation, nitration, viscosity and TBN.
With the OSA, engineers have the ability to decide, based on scientific data, whether potential engine problems would exist.
The OSA offers a solution to this problem by providing an evaluation for the probability of a potential failure within few minutes, in comparison to the traditional commercial laboratory.

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