This paper describes lubricant technology which helps to prevent intake valve deposit (IVD) formation for use with conventional gasolines without detergents, as well as the IVD evaluation method used in testing. The FED 3462 method was modified to establish a new panel coking test method, with excellent correlation with the engine stand IVD test, for the quantitative evaluation of IVD. Tests have shown that IVD increases when the volatility of base oils becomes higher due to condensation and polymerization of engine oil additives. Furthermore, viscosity index improvers, metallic detergents and ashless dispersants have considerable effect on IVD formation. Based on various experiments, the authors have established a formulation technology for engine oils to lower IVD, which they incorporated in two newly formulated SG oils with lower IVD than conventional 5W-30 SG oil.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of Gasoline Engine Oil Components on Intake Valve Deposit


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ueda, Fumio (Autor:in) / Ohira, Hirobumi (Autor:in) / Mitsui, Jun'ichi (Autor:in) / Akiyama, Kenyu (Autor:in) / Okada, Masanori (Autor:in)

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1993



    Erscheinungsdatum :

    01.10.1993




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Effect of gasoline engine oil components on intake valve deposit

    Akiyama,K. / Ueda,F. / Okada,M. et al. | Kraftfahrwesen | 1993


    Effect of Gasoline Engine Oil Components on Intake Valve Deposit

    Mitsui, J. / Akiyama, K. / Ueda, F. et al. | British Library Conference Proceedings | 1993


    Qualification of Gasoline Deposit Forming Tendencies Using & Co-ordinating Research Council Intake Valve Deposit Test

    Bannon, S. A. / Daly, D. T. / ENEA; Agency: Italy | British Library Conference Proceedings | 1994


    Mechanism of intake valve deposit formation - part III: effects of gasoline quality

    Ohsawa,K. / Nomura,Y. / Moritani,H. et al. | Kraftfahrwesen | 1992


    Mechanism of Intake Valve Deposit Formation Part III: Effects of Gasoline Quality

    Moritani, Hiroshi / Ohsawa, Katsuyuki / Kato, Makoto et al. | SAE Technical Papers | 1992