Most previous laboratory-scale deposit simulator studies have considered mainly fuel or lubricant composition and properties, with no consideration of possible effects of NOx, which may affect initiation of the deposit formation process and the overall rate at which deposition occurs. In this study a laboratory-scale deposit simulator was developed which produced thin deposit films by spraying gasoline on to a heated aluminium sleeve to investigate the effects of temperature, NO2 and possible gasoline blending components, on deposit formation. The amount of deposit collected is indicative of the deposit-forming tendency of the test fuel. The deposit film composition was analysed using Fourier transform infrared (FTIR) spectroscopy.

    The results of the experiments indicate that deposit formation is indeed sensitive to NO2, in addition to the effects of temperature and the molecular structure of the hydrocarbons. Thus the effect of NOx in deposit-related studies is important and should not be ignored. The FTIR analyses showed that when using NO2 the deposits are of a very similar structure to those produced in a real engine test. The analyses also gave some insight into the role of NO2 in the deposit formation mechanism.


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    Titel :

    The importance of NO2 in Bench Tests for Precombustion Deposits in the Spark Ignition Engine Intake System


    Beteiligte:
    Chou, T L (Autor:in) / Priestman, G H (Autor:in)


    Erscheinungsdatum :

    01.07.1993


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    The importance of NO2 in bench tests for precombustion deposits in the spark ignition engine intake system

    Chou,T.L. / Priestman,G.H. / Chinese Petroleum,CH et al. | Kraftfahrwesen | 1993



    Precombustion reaction in spark-ignition engine

    Retailliau, E.R. / Richards, Jr., H.A. / Jones, M.C.K. | Engineering Index Backfile | 1950


    PRECOMBUSTION REACTION IN THE SPARK-IGNITION ENGINE

    Retailliau, Edmond R. / Ricards, Harold A. / Jones, Minor C.K. | SAE Technical Papers | 1950


    Measurements and Predictions of the Precombustion Fluid Motion and Combustion Rates in a Spark Ignition Engine

    Borgnakke, Claus / Martin, Jay K. / Witze, Peter O. | SAE Technical Papers | 1983