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Investigation into the Formation and Prevention of Internal Diesel Injector Deposits
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2008 by SAE International in United States
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High precision high pressure diesel common rail fuel injection systems play a key role in emission control, fuel consumption and driving performance.
Deposits have been observed on internal injector components, for example in the armature assembly, in the slots of the piston and on the nozzle needle. The brownish to colourless deposits can adversely impact driveability and result in non-compliance with the Euro 4 or Euro 5 emission limits.
The deposits have been extensively studied to understand their composition and their formation mechanism. Due to the location of these deposits, the influence of combustion gas can be completely ruled out. In fact, their formation can be explained by interactions of certain diesel fuel additives, including di- and mono-fatty acids. This paper describes the methodology used and the data generated that support the proposed mechanisms. Moreover, approaches to avoid such interactions are discussed.
|Technical Paper||Protecting Diesel Fuel Injection Systems|
|Journal Article||Coking Phenomena in Nozzle Orifices of Dl-Diesel Engines|
|Technical Paper||Impact of Fuel Additives on Diesel Injector Deposits|
CitationUllmann, 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, https://doi.org/10.4271/2008-01-0926.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Impact of Fuel Additives on Diesel Injector Deposits Caprotti R. Leedham A. Graupner O. Klaua T. SAE 2004-01-2935
- Detergency requirements of future diesel injection systems Caprotti R. Breakspear A. Graupner O. Klaua T. SAE 2005-01-3901
- Injector Deposit Test For Modern Diesel Engines Graupner O. Klaua T. Siemens VDO Automotive AG Caprotti R. Breakspear A. Infineum UK Schik A. Rouff C. APL Automobil Prueftechnik Landau GmbH TAE Symposium 2005
- Harm free use of diesel additives Caprotti R. SAE 982569
- Deposits in diesel-injection pumps caused by the incompatibility of fuel and oil additives Mikkonen S. et al SAE 872119
- Interaction between Fuel Additive and Oil Contaminant: (I) Field Experiences Wooten D. Stehouwer D.M. Fang H. L. Martin H. SAE 2003-01-3139
- Interaction between Fuel Additive and Oil Contaminant: (II) Its Impact on Fuel Stability and Filter Plugging Mechanism Fang H. L. Stehouwer D. M. Wang J.C. SAE 2003-01-3140