PN-Emissions with Increased Lube Oil Consumption of GDI Car with/without GPF

Open access

Abstract

The particle number (PN) emissions are increasingly considered in the progressing exhaust gas legislation for onand off-road vehicles. The invisible nanoparticles penetrate like a gas into the living organisms and cause several health hazards.

The present paper shows how the PN- and gaseous emissions of a modern GDI (Abbreviations see sat the end of this paper) vehicle change, when there is an in-creased lube oil consumption. What are the potentials of a gasoline particle filter to reduce the emissions?

The lube oil consumption was simulated by mixing 2% vol. lube oil into the fuel. A non-coated GPF was mounted at tailpipe, so only the filtration effects were indicated.

The tests were performed at transient (WLTC) and at stationary (SSC) operating conditions.

It has been shown that the increased lube oil consumption significantly increases the PN-emissions and the applied high quality GPF eliminates these emissions very efficiently.

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