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Development of a Diesel Fuel Screening Test for Injector Nozzle Coking
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Abstract
The use of Detergent Additives is frequently considered to avoid or delay Injector Nozzle Coking in Diesel IDI engines.
To evaluate the effectiveness of these Detergent Additives, a new IDI engine screening test has been developed using a portable generator set.
This procedure has proved to be a quick (6 hours), reliable and repeatable test with different Diesel fuels and Additives being evaluated.
The effect of Detergent Additives composition and dosage level has been investigated with the test method allowing for Keep-Clean and Clean-Up properties to be demonstrated.
Test results were comparable to those found with the european nozzle coking test being developed by the CEC PF26 group for IDI passenger car and with automobile testing.
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Citation
Mulard, P. and China, P., "Development of a Diesel Fuel Screening Test for Injector Nozzle Coking," SAE Technical Paper 922184, 1992, https://doi.org/10.4271/922184.Also In
References
- BROWNE K.R. DRAPER D.E. GREEVES G. “Procedure for ranking the Propensity of Diesel Fuels to form Deposits within Pintle Nozzles” 2nd CEC International Symposium on the Performance Evaluation of Automotive Fuels & Lubricants June 5 - 7 1985
- HERBSTMAN S. VIRK K. “Use of Dispersants / Detergents in Diesel Injector Keep Clean and Clean Up Studies” SAE Paper 912330 International Fuels & Lubricants Meeting & Exposition Toronto, Canada Oct. 7 - 10 1991
- READING K. ROBERTS D.D. EVANS T.M. “The Effects of Fuel Detergents on Nozzle Fouling and Emissions in IDI Diesel Engines” SAE Paper 912328 International Fuels & Lubricants Meeting & Exposition Toronto, Canada Oct. 7-10 1991
- OLSEN R.E. INGHAM M.C. PARSONS G.M. “A Fuel Additive concentrate for Removal of Injector Deposits in Light-Duty Diesels” SAE Paper 841349 International Fuels & Lubricants Meeting & Exposition Baltimore, Maryland Oct. 8 - 11 1984
- Gasoline & Diesel Fuel Additives Critical Reports on Applied Chemistry 25 1989 John Wiley & Sons