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Recent Advances in the Analysis of GDI and Diesel Fuel Injector Deposits

机译：GDI和柴油喷射器沉积物分析的最新进展

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摘要

Formation of insoluble fuel deposits in external and internal parts of fuel injectors is a major issue globally for diesel and, more recently, gasoline direct injection (GDI) based engines. Deposit formation reduces fuel economy and increases emissions of almost every type of pollutant. Many potential causes exist such as general contamination, injector operating condition and the fuel composition. It is expected that as we move toward increased injection pressures to meet new emission targets, the occurrence and severity of deposits will increase. It is widely accepted that a necessary step to mitigating deposit formation is to understand their chemistry and structure to gain a deeper understanding into the formation mechanism. An array of analytical techniques have been applied for this endeavour to afford chemical, topographical and structural information on diesel deposits. This has extended into GDI deposits more recently. This literature review summarises the findings from studies into characterisation of both types of deposits and proposes that further work is required. Emphasis is also placed on the type of information offered by each analytical technique to aid researchers working in this field.
机译：对于柴油，以及最近基于汽油直接喷射（GDI）的发动机，在喷油器的内部和外部形成不溶性燃料沉积物是一个主要问题。沉积物的形成会降低燃油经济性并增加几乎每种污染物的排放。存在许多潜在原因，例如一般污染，喷油器工作状况和燃料成分。可以预期，随着我们朝着增加注射压力的方向努力以达到新的排放目标，沉积物的发生和严重性将会增加。人们普遍认为，减轻沉积物形成的必要步骤是了解其化学性质和结构，以便对形成机理有更深入的了解。为此，已应用了一系列分析技术，以提供有关柴油沉积物的化学，地形和结构信息。最近，这已扩展到GDI存款中。这篇文献综述总结了两种类型的矿床表征研究的结果，并提出需要做进一步的工作。重点还放在每种分析技术提供的信息类型上，以帮助从事该领域的研究人员。

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  • 来源
    《Fuel》 |2020年第jul15期|117682.1-117682.9|共9页
  • 作者

  • 作者单位

    Univ Nottingham Fac Engn Dept Chem & Environm Engn Nottingham NG7 2RD England;

    Innospec Ltd Oil Sites Rd Ellesmere Port CH65 4EY England;

    Univ Nottingham Sch Pharm Nottingham NG7 2RD England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fuel injector deposits; GDI; Diesel; Characterization; Mass spectrometry; ToF-SIMS;

    机译：喷油器沉积物;GDI;柴油机;表征;质谱;飞行时间;

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