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Lubricating Oil Contamination in Indirect Injection Diesel Engines
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English
Abstract
The paper briefly discusses the reasons behind the resurgence of interest in indirect injection diesel engines. It takes as its main theme the problem of lubricating oil contamination by combustion products, which is a feature peculiar to indirect injection engines. This problem can lead to severe oil thickening and eventual lubrication failure.
A work programme has defined how the rates of contamination vary with different design parameters and various engine running conditions.
Substantial improvements are predicted by close attention to combustion chamber design and piston and ring behaviour.
The Authors take the realistic approach that the soot contamination will never be completely eliminated at source and hence means of filtering out the contaminant (which are sub-micron sized particles) are discussed.
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Citation
Smith, I. and Chowings, A., "Lubricating Oil Contamination in Indirect Injection Diesel Engines," SAE Technical Paper 760723, 1976, https://doi.org/10.4271/760723.Also In
References
- Parsons G.J. “Dispersancy in Diesel Lubricants - A study with particular reference to oil thickening due to insolubles accumulation” Journal of The Institute of Petroleum 55 544 July 1969
- Bouman C.A. “Properties of lubricating oils and engine deposits” Macmillan and Company Ltd.
- Smith I. B. “An experimental investigation into lubricating oil contamination by fuel soot in a diesel engine” Kings College, University of London 1967
- de K. Dykes P. “An investigation into the mechanism of oil loss past pistons” Institution of Mechanical Engineers 171 11 1957