Oil separator for the gases of the crankcase of an internal-combustion engine

Claim 1

An oil separator for blow-by gases of a crankcase ventilating system of an internal-combustion engine, comprising: a filter through which the blow-by gases flow and from which separated oil is returned via an oil return into an oil reservoir, the blow-by gases from which oil was removed being supplied to an air intake system of the internal-combustion engine; said filter comprising an air oil removing element which separates entrained oil from said blow-by-gases said air oil removing element comprising a wound or star-folded element formed of microfibers of fiberglass material; a vacuum generator coupled to the filter element, the vacuum generator comprising an ejector nozzle acted on by compressed air supplied from a compressed air source for an air braking system, said vacuum generator forming a vacuum for aspirating the blow-by gases from the filter element; and an adjustable throttle which controls the pressure of compressed air supplied from said compressed air source to said ejector nozzle.