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Low Temperature Engine Sludge — What? — Where? — How?
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English
Abstract
Under low temperature engine operation, sludge appears as insolubles in the lubricating oil or as deposits on engine parts. Its formation is initiated by liquid oxidation products, inorganic salts, and polymerized organic compounds that pass the piston ring zone. The liquid oxidation products undergo further chemical reaction in the crankcase oil medium, forming solid “sludge binders.” These “binders” are the essential ingredients that the oil must contain before the organic solids (carbonyls, sulfur, and nitrogen derivatives and polymerized hydrocarbons), inorganic salts, wear particles, and soot can be deposited as sludge.
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Authors
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Citation
Dimitroff, E. and Quillian, R., "Low Temperature Engine Sludge — What? — Where? — How?," SAE Technical Paper 650255, 1965, https://doi.org/10.4271/650255.Also In
References
- Bowhay E. J. Koenig, E. F. “Factors AffectingLow-Temperature Engine Deposits.” Paper presented at the SAE Summer Meeting, French Lick, Indiana June 5 1947
- Rogers, D. T. Rice, W. W. Jonach, F. L. “Mechanism of Engine Sludge Formation and Additive Action.” Paper presented at the SAE Fuels and Lubricants Meeting, Philadelphia, Pennsylvania November 9 1955
- Cree J. C. Withers, J. G. “All-Season High Performance Oil,” Automobile Engineer 45 January 1955 21 28
- Stewart W. T. Stuart, F. A. “Lubricating Oil Additives.” Advances in Petroleum Chemistry and Refining VII 1963 15 18
- “Low Temperature Deposition Characteristics of Crankcase Lubricating Oils.” Method 348 December 31 1961
- Quillan R. D. Jr. Meckel Nelson T. Moffitt John V. “Cleaner Crankcases With Blowby Diversion.” Paper presented at the SAE Congress, Detroit, Michigan January 13–17 1964
- Dimitroff Edward Bowden John N. “A Theory on the Mechanism of Dispersancy in Oil Medium.” Paper presented at the 142nd National Meeting of the American Chemical Society, Atlantic City, New Jersey September 1962
- Bowden John N. Dimitroff Edward “Mechanism Studies of Polymeric Dispersants.” Paper presented at the 142nd National Meeting of the American Chemical Society, Atlantic City, New Jersey September 1962