Oil separator for the gases of the crankcase of an internal-combustion engine
AssigneeFilterwerk Mann & Hummel GmbH
InventorsBertram Uebelhoer, Heinz Wendt
Life of this patent
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Abstract
An oil separator for the gases of the crankcase ventilating system of an internal-combustion engine has a filter element through which the breathing gases flow and from which the separated oil is returned via an oil return into the oil tank 4. The blow-by gases, from which the oil was removed, are supplied to the air intake system of the internal-combustion engine. A vacuum generator is provided which generates a specified constant vacuum for the sucking-off of the blow-by gases. In addition, an air oil removal element that separates the oil has microfibers which are made of fiber glass material.
Claims4
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.
Dependencies are inferred from the claim text.