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BSI PD CEN/TR 16680:2014

BSI PD CEN/TR 16680:2014

$102.76

Liquid petroleum products. Investigation on internal diesel injector sticking deposits mechanisms and the impacts of corrosion inhibitors

Published By Publication Date Number of Pages
BSI 2014 22
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This Technical Report describes the investigation into diesel vehicle common rail fuel injector sticking problems in a number of countries across Europe since 2005/2006, carried out by the CEN/TC 19/WG 24/IDID Task Force. It provides conclusions following this work that have been adopted by CEN.

PDF Catalog

PDF Pages PDF Title
5 Foreword
6 1 Scope
2 Normative references
3 Symbols and abbreviations
7 4 Summary
5 Description of injector sticking problems
Figure 1 — Types of injector deposits (courtesy PSA)
8 Figure 2 —Example of caboxylate injector deposits (courtesy Daimler)
6 FIEM/OEM experience
9 7 Changes influencing internal injector deposits
8 Deposit forming mechanism
10 Figure 3 — FTIR analysis of injector deposits from the French market (data courtesy Ford)
Figure 4 — FTIR analysis of injector deposits (data courtesy Afton Chemical Ltd)
9 Potential sources of sodium in diesel fuel
11 10 Corrosion inhibitors
11 Investigations in France
12 Figure 5 — Sodium levels in key European markets and the USA (Source SGS surveys)
Figure 6 —European diesel survey on sodium (in mg/kg) (data courtesy CONCAWE)
13 Figure 7 — Field measurements of sodium (in mg/kg) in FAME (data courtesy AGQM)
14 12 Investigations in Spain
Figure 8 —Internal common-rail injector deposits from a light duty vehicle (courtesy Repsol)
Figure 9 —Internal nozzle deposits in heating oil burners (courtesy Repsol)
15 Figure 10 — GC-MS chromatograms from all deposits adhered to nozzle needle (red line) and corrosion inhibitor additive (green line) after solubilisation and derivatisation process
16 13 Investigations in Denmark
Table 1 — Acid Number of different corrosion inhibitor additives
Figure 11 — Filter Blocking Tendency (FBT) vs. additive concentration (in mg/kg)
17 Table 2 — FBT vs. acid lubricity additive content at different sodium contents
Figure 12 — FBT vs. acid lubricity additive content at different sodium contents
14 Conclusions
18 15 Future work
19 Bibliography

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BSI PD CEN/TR 16680:2014
$102.76