Patent ID: 7152589
Filing Date: 2006-12-26
Classification: B01D,B04B,F01M,Y10S

Abstract:
1. A method of cleaning crankcase gas generated during operation of an internal combustion engine in its crankcase, said method including the steps of: using centrifugal separator that includes a centrifugal rotor arranged for rotation by means of a driving motor and arranged by its rotation to suck crankcase gas from the crankcase to the centrifugal separator, sensing a parameter, the magnitude of which is related to the amount of crankcase gas generated per unit of time in the crankcase, and changing the rotational speed of the centrifugal rotor in response to a sensed change of said parameter such that gas pressure in the crankcase is maintained at at least one of a predetermined value; and within a predetermined pressure interval, during the operation of the combustion engine.