Publisher DOI: 10.4271/2015-24-2535
Title: Fuel transport across the piston ring pack: measurement system development and experiments for online fuel transport and oil dilution measurements
Language: English
Authors: Behn, Andreas 
Feindt, Matthias 
Matz, Gerhard 
Krause, Sven 
Gohl, Marcus 
Issue Date: 6-Sep-2015
Publisher: Soc.
Source: SAE Technical Papers 2015: (2015-09-06)
Journal: SAE technical papers 
Abstract (english): 
The limitation of fuel entry into the oil sump of an internal combustion engine during operation is important to preserve the tribological properties of the lubricant and limit component wear. For observation and quantification of the effects leading to fuel entry, a highly sensitive and versatile measurement system is essential. While oil sampling from the sump followed by laboratory analysis is a common procedure, there is no system for automatic sampling of all the positions and fast online analysis of the samples. For the research project 'Fuel in Oil', a measurement system was developed especially for the described tasks. The system is placed next to the engine in the test cell. Sampling points are the target point of the fuel injector jet and the liner below, the oil sump and the crankcase ventilation system. The system consists of a microliter volume and an aerosol sampling setup, a probe evaporator, an isothermal gas chromatograph and a triple quadrupole mass spectrometer with a modified ion source. To quantify the fuel emission from the cylinder wall into the exhaust, an online exhaust gas measurement was carried out using a direct inlet system with the same mass spectrometer. With the use of the described setup, it was possible to observe and quantify the effects leading to fuel entry into the oil sump as well as fuel leaving the sump.
Conference: 12th International Conference on Engines & Vehicles 
ISSN: 2688-3627
Institute: Elektrische Energietechnik E-6 
Document Type: Chapter/Article (Proceedings)
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