This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Internal Diesel Injector Deposits: Sodium Carboxylates of C12 Succinic Acids and C16 and C18 Fatty Acids
Technical Paper
2012-01-1689
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Over the last few years, problems caused by internal injector deposits have appeared sporadically in Spain. These deposits can lead to engine vibrations, unstable idling or poor starting.
This paper presents and discusses the results of a study on the internal deposits of common rail injectors from light and heavy-duty vehicles from the field in Spain since 2005. Using analytical techniques like SEM-EDS, FTIR and GC-MS, the internal deposits were analyzed and found to be composed mainly of carboxylic salts from C12 succinic acids and C16 and C18 fatty acids. Several fuel additives were analyzed using the procedure developed in this work and evidence was obtained to the effect that the chemical composition of corrosion inhibitor additive, which have been used in Spanish pipelines during the last few years, relates to the formation of the internal deposits found in the common rail injectors studied, when sodium ions are present in the fuel.
A common rail diesel engine test was developed to reproduce the internal diesel injector deposits found in the field and to verify the analytical results obtained in this work.
Recommended Content
Authors
Topic
Citation
Cardenas Almena, M., Lucio Esperilla, O., Martin Manzanero, F., Murillo Duarte, Y. et al., "Internal Diesel Injector Deposits: Sodium Carboxylates of C12 Succinic Acids and C16 and C18 Fatty Acids," SAE Technical Paper 2012-01-1689, 2012, https://doi.org/10.4271/2012-01-1689.Also In
References
- CEC F-23-01 Procedure for Diesel Engine Injector Nozzle Coking Test (PSA XUD9A/L 1.9 Litre 4 Cylinder indirect injection diesel engine)
- CEC F-98-08 Direct Injection, Common Rail Diesel Engine Nozzle Coking Test
- Lacey, P. Gail, S. Kientz, J. Milovanovic, N. et al. “Internal Fuel Injector Deposits,” SAE Int. J. Fuels Lubr. 5 1 132 145 2012 10.4271/2011-01-1925
- Schwab, S. Bennett, J. Dell, S. Galante-Fox, J. et al. “Internal Injector Deposits in High-Pressure Common Rail Diesel Engines,” SAE Int. J. Fuels Lubr. 3 2 865 878 2010 10.4271/2010-01-2242
- Quigley, R. Barbour, R. Fahey, E. Arters, D.C. Wetzel, W. Ray, J. “A Study of the Internal Diesel Injector Deposit Phenomeno” TAE 8 th Fuels Annual Colloquium January 2011
- Bhatti, N. Caprotti, R. Balfour, G. “Benefits of Diesel Detergency in Modern Diesel Fuel Injection System” TAE 8 th Fuels Annual Colloquium January 2011
- Caprotti, R. Bhatti, N. Balfour, G. “Deposit Control in Modern Diesel Fuel Injection Systems,” SAE Int. J. Fuels Lubr. 3 2 901 915 2010 10.4271/2010-01-2250
- Ullmann, J. Geduldig, M. Stutzenberger, H. Caprotti, R. et al. “Investigation into the Formation and Prevention of Internal Diesel Injector Deposits,” SAE Technical Paper 2008-01-0926 2008 10.4271/2008-01-0926
- Omori, T. Tanaka, A. Yamada, K. Bunne, S. “Biodiesel deposit formation mechanism and improvement of Fuel Injection Equipment (FIE),” SAE Technical Paper 2011-01-1935 2011 10.4271/2011-01-1935
- RD 1088/2010 04 09 2010 http://www.boe.es/boe/dias/2010/09/04/pdfs/BOE-A-2010-13704.pdf