OIL DETERIORATION SUPPRESSING DEVICE FOR INTERNAL COMBUSTION ENGINES

摘要

The present invention provides an oil deterioration suppressing device (40) for internal combustion engines, which is provided with: an oil retainer part (18) in which oil is retained; a filtration part (46) and an adsorption part (44) which are disposed in an oil passage (30); and a supply device which supplies the oil held in the oil retainer part (18) to the upstream of the adsorption part (44) and the filtration part (46). The filtration part (46) is configured so as to remove an unnecessary product from the oil, and the adsorption part (44) is arranged in the upstream of the filtration part (46) and configured so as to adsorb a predetermined acidic component in the oil. Since a predetermined acidic component in the oil can be removed from the oil by means of the adsorption part (44), this device (40) is capable of suppressing the generation of sludge at the filtration part (46), thereby adequately suppressing deterioration of the oil.