Particle Emissions of a TDI-Engine with Different Lubrication Oils

Abstract

<div class="htmlview paragraph">Due to increasing concern about health effects of fine and ultra-fine particles (nanoparticles) from combustion engines, the diesel particle filter technology (DPF) <span class="xref">*<sup>)</sup></span> was extensively introduced to heavy duty and passenger cars in the last years. In this respect, a very important parameter is the irreversible plugging of the DPF with non-combustible ashes. The quality of lubrication oil, especially the ash content has a certain influence on regeneration intervals of diesel particle filters.</div> <div class="htmlview paragraph">In the present study, the effects of different lubrication oils on particle mass and nano-particle size distribution were investigated. The test engine was a modern diesel engine without particle filter system.</div> <div class="htmlview paragraph">A main goal was to find out, how different lubrication oils influence the particulate emissions and the contribution of oil to total particle emissions.</div> <div class="htmlview paragraph">Moreover, first results of a tracing study will be discussed. The comparison of a non-doped lubrication oil with a doped oil should enlighten the contribution of the oil to the particle formation.</div> <div class="htmlview paragraph">It will be shown that beside sulphur content the particle emission is also effected by the composition (e.g. additive packages) of the oils.</div>