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 |
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 |
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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 |