A crankcase ventilating system for an internal combustion engine includes a vent line issuing from the crankcase and connected to a liquid separator. The liquid separator has a collecting chamber for separated liquid and at least two drain lines returning to the crankcase. The liquid separator also has...http://www.google.co.uk/patents/US5579744?utm_source=gb-gplus-sharePatent US5579744 - Crankcase ventilator for internal combustion engines
