FIELD: internal combustion engines.
SUBSTANCE: invention can be used in the internal combustion engines. Disclosed is method for engine. For air heating, fresh air is drawn through intermediate space (416) of exhaust manifold (440) with double walls. Then, heated air is directed into casing (430) through tube (422). Displacement of the tube is carried out based on the fact that the temperature of heated air entering the crankcase is lower than the expected crankcase temperature. Method for engine and engine system are disclosed.
EFFECT: technical result consists in growth of fuel saving, reduction of engine wear and reduction of emissions of exhaust gases due to accelerated engine warm-up.
17 cl, 10 dwg
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