Rapid engine wear is one of the most serious problems associated in the commercial exploitation of carburetter, straight methanol spark ignited engines. The existing lubricants are reported to be deficient in the control of cylinder bore and piston ring wear. Whereas, extensive efforts have been made to develop improved lubricants, the problem of increased wear of methanol has not, as yet, been satisfactorily addressed. The various mechanisms proposed for this increased wear have been examined in this paper. It was recognized that the conditions which aggravate the wear of methanol engines are encountered during cold start and warm-up due to the differences in the volatility characteristics of this fuel.In this study, cold start wear tests were conducted in a cold room with temperature control ranging from +25°C to −40°C. Wear data of methanol engines, under starting conditions typical of the Canadian environment, are compared with data of a gasoline counterpart. The analysis of these data so obtained suggests that a temperature dependent theory is valid to explain the cold start wear results. Further, the cold start wear can be a significant portion of the total wear and is attributed to the direct attack of methanol on the cylinder walls in the first few seconds of engine operation.


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    Titel :

    Cold Start Wear Performance in Methanol and Gasoline Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hoffman-Goetz, L. (Autor:in) / Nautiyal, P. C. (Autor:in) / Goetz, W. A. (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1985



    Erscheinungsdatum :

    01.02.1985




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Cold Start Wear Performance in Methanol and Gasoline Engines

    Nautiyal,P.C. / Goetz,W.A. / Hoffman-Goetz,L. et al. | Kraftfahrwesen | 1985


    Emission Reduction Technologies in Cold Start of Gasoline Engines

    Nishizawa, K. | British Library Online Contents | 1996


    Cold-Start Hydrocarbon Speciation and Trap Materials for Gasoline Engines

    Rao, Komateedi Narayana / Kim, Mi-Young / Song, Jinwoo et al. | British Library Conference Proceedings | 2018


    Cold-Start Hydrocarbon Speciation and Trap Materials for Gasoline Engines

    Han, Hyun Sik / Song, Jinwoo / Narayana Rao, Komateedi et al. | SAE Technical Papers | 2018


    Effects of methanol-gasoline blends on performance, emissions and wear in SI engines

    Hsia,J. / Kuo,L.K. / Lin,C.S. et al. | Kraftfahrwesen | 1986