Government legislation, customer requirement, and pressure from the original equipment manufacturers (OEM) continually pushes the issue of increased vehicle fuel economy to the forefront. Lubricant manufacturers responded by creating low viscosity lubricants with complex additive packages capable of reducing total engine friction while maintaining the useful life of the engine. An important component in the lubricant additive package is the friction modifier, whose job is to reduce the sliding friction of components operating in the boundary lubrication regime. It is widely agreed that 40-60 per cent of mechanical friction can be attributed to the piston/ring/cylinder wall interface, much of which is as a result of the compression ring whose lubrication is kept purposely minimal to control exhaust emissions. A logical progression to research suggests utilizing fuel to administer friction modifier directly to the top ring zone of the engine, the area where its effects are most beneficial. This article describes a series of tests conducted using a Plint TE-77 reciprocating tribometer to investigate the synergy of lubricant and fuel containing friction modifier at the top ring zone. A computational model has been modified and utilized to further investigate the potential impact of administering friction modifier at the top ring zone via the fuel.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Simulated fuel dilution and friction-modifier effects on piston ring friction


    Weitere Titelangaben:

    Simulierte Kraftstoffverdünnungs- und Reibungsmodifierwirkungen auf die Kolbenringreibung


    Beteiligte:
    Smith, O. (Autor:in) / Priest, M. (Autor:in) / Taylor, R.I. (Autor:in) / Price, R. (Autor:in) / Cantlay, A. (Autor:in) / Coy, R.C. (Autor:in)


    Erscheinungsdatum :

    2006


    Format / Umfang :

    9 Seiten, 6 Bilder, 2 Tabellen, 13 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Piston Ring Designs For Reduced Friction

    Hill,S.H. / Newmann,B.A. / Muskegon Piston Ring,Goetze,US | Kraftfahrwesen | 1984


    Piston Ring Designs for Reduce Friction

    Newman, Brian A / Hill, Stephen H. | SAE Technical Papers | 1984


    A Study of Piston-ring Friction

    Livengood, James C / Wallour, Chapin | NTRS | 1947


    Measurement of piston and piston ring assembly friction force

    Goto,T. / Aoyama,S. / Nagumo,S. et al. | Kraftfahrwesen | 1985


    Piston Friction Force And Piston Ring Oil Film Thickness

    Kojima, M. / Furuhama, S. / Sasaki, S. | SAE Technical Papers | 1984