Temperature raising mechanism for blow-by gas treatment device and engine provided with temperature raising mechanism for blow-by gas treatment device

An engine including a temperature raising mechanism for a blow-by gas treatment device which treats blow-by gas generated in the engine, wherein

• the temperature raising mechanism for the blow-by gas treatment device has:
• a head cover which is assembled to a cylinder head of the engine;
• the blow-by gas treatment device which is disposed in the head cover and treats the blow-by gas;
• and
• heating means which is fixed to an outer surface of the head cover and generates heat;
• and
• the blow-by gas treatment device has:
• a partition wall part which is fixed to the head cover and partitions an inside of the head cover into a plurality of regions;
• and
• a separating portion which is provided in the partition wall part and separates the blow-by gas into oil and gas;
• the separating portion has a flow-velocity raising operation portion which has a throttle hole and an impactor structure aligned close to said throttle hole raising a flow velocity of the blow-by gas by causing the blow-by gas to pass through the throttle hole;
• and
• the head cover has a heat conducting portion which is in contact with the partition wall part and conducts heat generated by the heating means to the throttle hole of the separating portion via the partition wall part.