An apparatus for cleaning of crankcase gas coming from an internal combustion
engine can be carried by and be releasably coupled to the combustion engine. For
this purpose the apparatus comprises an adapter element, which can be connected
with the combustion engine, and a housing, which can be releasably coupled to the
adapter element and which delimits a separation chamber. The housing supports in
the separation chamber a centrifugal rotor that is rotatable about a vertical rotational
axis and is arranged for cleaning of the crankcase gas. The centrifugal rotor has
a drive shaft extending downwards through a bottom in the separation chamber and
into a drive chamber, in which the drive shaft carries a turbine wheel. A nozzle
is arranged to spray pressurized lubricating oil against the turbine wheel for
rotation thereof and of the centrifugal rotor. The adapter element is intended
to abut against the combustion engine by means of an abutment surface, which has
a first opening for receiving pressurized lubricating oil from the combustion engine
and a second opening for returning to the combustion engine from the drive chamber
lubricating oil having been used for driving of the centrifugal rotor. Said first
opening communicates through a channel in the adapter element with the nozzle and
said second opening communicates through an outlet channel in the adapter element
with the drive chamber.
