PCV oil separator system
AssigneeSealed Power Technologies, L.P.
InventorStephen H. Hill
Life of this patent
Estimating the term…
Abstract
An oil separator positioned in the positive crankcase ventilation (PCV) system adjacent the engine such that the oil separator is subjected to a predetermined minimum operating temperature. The oil separator comprises an opening through which the oil, fuel and water particles pass with the gas stream. The oil separator is constructed and arranged to cause the oil particles to strike an impactor plate and be separated from the gas flow while fuel and water particles pass on through the system and re-enter the engine.
Claims25
In a positive crankcase ventilation system wherein a direct flow path of vapors is provided between the engine crankcase and the intake manifold by inducing differential pressure between the intake manifold and the crankcase, the method of separating oil from fuel and water in the vapor which comprises:
- passing the vapors through at least one chamfered orifice,
- directing the vapors toward an impactor plate,
- impacting the vapors after they have passed through the orifice against an impactor plate,
- controlling the temperature of the vapors, the size of the orifice, the distance between the orifice and the impactor plate such that the oil particles are separated from the vapor and the remaining vapor containing fuel and water passes on through the system.
In a positive crankcase ventilation system wherein a direct flow path of vapors is provided between the engine crankcase and the intake manifold by inducing differential pressure between the intake manifold and the crankcase, the improvement comprising
- an oil separator including an orifice positioned such that the vapors pass through the orifice, an impactor plate against which the vapors pass after passing through the orifice, and
- means for heating the vapors before passage through the orifice, the size of the orifice, the distance between the orifice and the impactor plate, and amount of heat being constructed and arranged such that the oil particles are separated from the PCV gas which with the fuel and water particles pass on through the system and re-enter the engine.
An oil separator for use in a positive crankcase ventilation system wherein a direct flow path of vapors is provided between the engine crankcase and the intake manifold by inducing differential pressure between the intake manifold and the crankcase,
- said oil separator including an orifice positioned such that the vapors pass through the orifice, an impactor plate against which the vapors pass after passing through the orifice, and
- means for heating the vapors before passage through the orifice and, the size of the orifice and distance between the orifice and the impactor plate, and amount of heat being constructed and arranged such that the oil particles are separated from the PCV gas which with the fuel and water particles pass on through the system and re-enter the engine.
Dependencies are inferred from the claim text.