Scania Cv Ab

Jonas Aspfors

Zoltan Kardos

Andreas Dahl

Håkan Sarby

Daniel Norling

Mattias Berger

Eric Olofsson

Michael Vallinder

Per-Inge Larsson, Sr

Ulf Nylén

Klas Olofsson

Daniel Hjortborg

Johan Linderyd

Henrik Höglund

Martin Stenberg

Henrik Hittig

Hanna Lind

Torbjörn Eliassen

Per Stålhammar

A four stroke internal combustion engine is disclosed comprising at least one cylinder arrangement, an exhaust conduit, and at least one turbine. The cylinder arrangement comprises an exhaust port arrangement configured to open and close an exhaust flow area, A. The cylinder arrangement has a maximum volume, V. The exhaust conduit extends between the exhaust flow area, A, and a turbine wheel inlet area, A, of the turbine and has an exhaust conduit volume, Vthat is &#x2264;0.5 times the maximum volume, V. The exhaust port arrangement is configured to expose the exhaust flow area, A, at a size of at least 0.22 times the maximum volume, V, when a piston of the cylinder arrangement is at the bottom dead centre, BDC.

Four stroke internal combustion engine

The present invention relates to use of a lubrication oil that forms water-soluble ash when combusted in an engine system, where the engine system comprises an internal combustion engine; an exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, including the water-soluble ash; and an exhaust gas conduit to lead exhaust gases from the internal combustion engine to the exhaust gas system, and to collect condensed water formed by a cold start and/or a cold operation of the internal combustion engine and lead the condensed water through the diesel particulate filter, thereby dissolving and removing the water-soluble ash from the diesel particulate filter.

Use of a lubrication oil that forms water-soluble ash when combusted, engine system in which the oil is used and a vehicle comprising the engine system

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Nykvarn, Sweden

Jonas Aspfors