Combustion engine and method of ventilating the crankcase thereof

The procedure for the running of an internal combustion engine entails guiding separately from each other the oil-laden air (60) drawn from the crankcase (30) and the returned exhaust gas (58) present in the intake tract to the inlet into the combustion chamber. The oil-laden air from the crankcase is directed to a suction pipe or cylinder head flange in the intake tract by blow-by gas (60a). An Independent claim is included for an internal combustion engine in which the proposed procedure is carried out.