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The Effects of Fuel Detergents on Nozzle Fouling and Emissions in IDI Diesel Engines
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Abstract
The role and required function of a diesel fuel detergent are discussed and related to the process of nozzle deposit formation. A bench engine test method is described which uses an air-flow technique to measure the fouling produced in IDI nozzles and hence quantify the effectiveness of detergents in the engine test. Data are presented demonstrating the discrimination in detergent performance which may be obtained by applying this method at different operating conditions. Results of ECE 15.04 emissions tests are presented from vehicles having nozzle fouling levels ranging between 1-70%. These emission levels are plotted versus nozzle fouling. From these data, it is concluded that reducing fouling produces a systematic reduction in unburnt hydrocarbon emissions. An optimum fouling level of 15-40% is identified to minimise particulate emissions from this engine.
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Reading, K., Roberts, D., and Evans, T., "The Effects of Fuel Detergents on Nozzle Fouling and Emissions in IDI Diesel Engines," SAE Technical Paper 912328, 1991, https://doi.org/10.4271/912328.Also In
References
- Investigation of injection nozzle coking in a passenger car diesel engine Hage F. 47 1986 291
- Effects of fuel stability upon injection-nozzle deposit formation in road-tested diesel engines Fortnagel M. Herrbrich B. Proc. Am Pet. Inst. 63 1984 82
- Effects of an unstable diesel fuel on injector coking and vehicle performance Halsall R. 2nd Int. Conf. on storage stability of liquid fuels
- Long-term storage stability of diesel fuels - effect of aging on injector fouling - stabilisation by additives or hydrotreating Martin B. Bocard C. Durand J.P. et al. SAE 902174
- Effect of diesel fuel composition and additives on the build up of injector deposits Herbstman S. Virk K. SAE 892119
- The role of detergent additives in diesel fuels Reading K. Inst. Mech. Eng. Seminar proceedings 1990 85
- A fuel additive concentrate for removal of injector deposits in light-duty diesels Olsen R.E. Ingham M.C. Parsons G.M. SAE 841349
- Benefits of multifunctional diesel fuel additives demonstrated in a fleet test Kochler D.E. Doglio J.A. SAE 872146
- Fouling of automotive diesel injectors - test procedure, influence of diesel oil and additives Montagne X. Herrier D. Guilbet J.C. SAE 872118
- Storage stability of petroleum derived diesel fuel. 3 - Identification of compounds involved in sediment formation Pedley J.F. Hiley R.W. Hancock R.A. Fuel 66 1987 1651
- The role of a metal deactivator in improving the thermal stability of aviation kerosines: additive adsorption studies Clark R.H. Delargy K.M. Heins R.J. 200th Am. Chem. Soc. Meeting 1990
- Procedure for ranking the propensity of diesel fuels to form deposits within pintle nozzles Browne K.R. Draper D.E. Greeves G. Second CEC Ant. Fuels and Lubs. Symp. 1985
- A procedure for the assessment of pintle injector nozzle blockage (nozzle coking) in indirect injection diesel engines Reynolds E.G. SAE 861409