3.2 reatment of detergent type lubricating oils
3.2 Treatment of detergent type lubricating oils
3.2 Treatment of detergent type lubricating oils The main function of detergent lubricating oil is to keep solid contaminations in suspension and prevent both their agglomeration and deposition in the engine his function reduces ring sticking, wears of piston rings and cylinder liners, and generall improves the cleanliness of the engine agglomeration
3.2 Treatment of detergent type lubricating oils • The main function of detergent lubricating oil is to keep solid contaminations in suspension and prevent both their agglomeration and deposition in the engine. • This function reduces ring sticking, wears of piston rings and cylinder liners, and generally improves the cleanliness of the engine. agglomeration
3.2 Treatment of detergent type lubricating oils Other functions include reduction of lacquer formation corrosion and oil oxidation These functions are achieved by the formation of an envelope of detergent oil round each particle of solid contaminant This envelope prevents coagulation and deposition and keeps the solids in suspension in the oil lacquer coagulation
3.2 Treatment of detergent type lubricating oils • Other functions include reduction of lacquer formation, corrosion and oil oxidation. • These functions are achieved by the formation of an envelope of detergent oil round each particle of solid contaminant. • This envelope prevents coagulation and deposition and keeps the solids in suspension in the oil. lacquer coagulation
3.2 Treatment of detergent type lubricating oils In engines of the trunk piston type with a combined e lubrication system for bearings and cylinders, in addition to the deposition of the products of incomplete combustion which occurs on pistons, piston rings and grooves. some of these products can be carried down into the crankcase, contaminating the crankcase oil and causing deposition in oil lines, etc Detergent oils are, therefore, widely used in this type of engine
3.2 Treatment of detergent type lubricating oils • In engines of the trunk piston type with a combined lubrication system for bearings and cylinders, in addition to the deposition of the products of incomplete combustion which occurs on pistons, piston rings and grooves, some of these products can be carried down into the crankcase, contaminating the crankcase oil and causing deposition in oil lines, etc. • Detergent oils are, therefore, widely used in this type of engine
3.2 Treatment of detergent type lubricating oils most cases, completely soluble in the oi h The detergent additives used today are There may, in certain instances, be a tendency for the detergent to be water soluble or for emulsion to be formed particularly if a water-washing system is incorrectly used during separation
3.2 Treatment of detergent type lubricating oils • The detergent additives used today are, in most cases, completely soluble in the oil. • There may, in certain instances, be a tendency for the detergent to be water soluble, or for emulsion to be formed, particularly if a water-washing system is incorrectly used during separation
3.2 Treatment of detergent type lubricating oils Manufacturers of centrifuges have carried out a considerable amount of research work in conjunction with the oil companies on the centrifuging of detergent lubricating oil using three different methods of centrifuging, i.e purification, clarification and purification with water washing
3.2 Treatment of detergent type lubricating oils • Manufacturers of centrifuges have carried out a considerable amount of research work in conjunction with the oil companies on the centrifuging of detergent lubricating oil using three different methods of centrifuging, i.e., purification, clarification and purification with water washing
3.2 Treatment of detergent type lubricating oils The following is a summary of the findings and recommendations based on results which were obtained When operating either as a purifier(with or without water washing) or as a clarifier all particles of the order of 3- 5 microns and upwards are completel extracted, and when such particles are of high specific gravity, for example iron oxide, very much smaller particles are removed
3.2 Treatment of detergent type lubricating oils • The following is a summary of the findings and recommendations based on results which were obtained: – When operating either as a purifier (with or without water washing) or as a clarifier all particles of the order of 3 - 5 microns and upwards are completely extracted, and when such particles are of high specific gravity, for example iron oxide, very much smaller particles are removed
3.2 Treatment of detergent type lubricating oils The average size of solid particles left in the oil after centrifuging are of the order of only 1-2 microns(One micron is a thousandth part of a millimeter) No particles are, therefore, left in the oil which is of sufficient size to penetrate any oil film in the lubricating-oil system penetrate
3.2 Treatment of detergent type lubricating oils – The average size of solid particles left in the oil after centrifuging are of the order of only l - 2 microns (One micron is a thousandth part of a millimeter). – No particles are, therefore, left in the oil which is of sufficient size to penetrate any oil film in the lubricating-oil system. penetrate
3.2 Treatment of detergent type lubricating oils A centrifuge should be operated only with the bowl set up as a purifier when the rate of contamination of the lubricating oil by water is likely to exceed the water-holding capacity of the centrifuge bowl between normal bowl cleanings Set up as
3.2 Treatment of detergent type lubricating oils – A centrifuge should be operated only with the bowl set up as a purifier when the rate of contamination of the lubricating oil by water is likely to exceed the water-holding capacity of the centrifuge bowl between normal bowl cleanings. Set up as
3.2 Treatment of detergent type lubricating oils When the rate of water contamination is negligible the centrifuge can be operated with the bowl set up as a clarifier Any water separated will be retained in the dirt holding space of the bowl Purification with water washing can be employed to remove water soluble acids from the oil. in addition to solid and water contaminants This method can be used with most detergent lubricating oils but it should not be used without reference to the oils suppliers
3.2 Treatment of detergent type lubricating oils – When the rate of water contamination is negligible, the centrifuge can be operated with the bowl set up as a clarifier. – Any water separated will be retained in the dirtholding space of the bowl. – Purification with water washing can be employed to remove water soluble acids from the oil, in addition to solid and water contaminants. – This method can be used with most detergent lubricating oils but it should not be used without reference to the oils suppliers