Patent ID: 6626163
Filing Date: 2003-09-30
Classification: B01D,B04C,F01M

Abstract:
An oil separator for de-oiling crankcase ventilation gases of an internal combustion engine wherein the oil separator comprises at least one cyclone having a gas inlet for connection to a crankcase of the internal combustion engine, a gas outlet for connection to an air suction passage of the internal combustion engine, and an oil outlet for connection to a crankcase sump of the internal combustion engine, the gas outlet, in the form of a submerged pipe, projecting through a lid into an interior of the cyclone with the lid closing the cyclone at a top, a gas duct section provided above the gas outlet on top of the lid, with the gas duct section comprising a horizontal cross-section enlarged to at least double size as compared to the gas outlet, and a separate oil drain passage guided from the gas duct section downwards to at least one of the oil outlet and the crankcase sump.