The present work aims at deepening the phenomenon of oil consumption, paying particular attention to the study of oil consumption contribution deriving from turbocharger.In order to evaluate the quantity of oil that leaks from turbocharger oil seals, it was necessary to design a turbocharger lubricating oil system that is totally independent from the main lubricating circuit. The oil consumption from both turbocharger and engine was measured with gravimetric method.A Mercedes OM364LA medium duty Diesel engine was run at maximum power output for more than 300 hours. Different lubricating oils were alternated in order to evaluate the influence of some lubricating oil parameters on oil consumption, while a reference oil was tested at different times to estimate the oil consumption trend during life for both engine and turbocharger.In particular three oil parameters were considered: SAE grade (5W-30 vs 10W-40), basestock nature (mineral vs synthetic) and viscosity index improver nature (Olefin vs styrene-isoprene copolymers).The results of the experiment pointed out a turbocharger contribution to the total oil consumption ranged between 20% in the initial part of the experiment and 5% in the final part. The percent decrease over the entire test duration was due to a reduction of turbocharger absolute contribution, probably related to an improving performance of oil seals after running-in, and to a large increase of total engine oil consumption because of an arising bore-polishing of cylinder liners.A significant influence of basestock nature on turbocharger oil consumption emerged: a 25% reduction of turbocharger contribution occurred when synthetic basestocks were used. The reason for this seems to be the lower volatility of synthetic basestocks compared to the mineral ones. No significant influence of viscosity emerged.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Study of Oil Consumption on a Diesel Engine with Independently Lubricated Turbocharger


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Roselli, A. (Autor:in) / Carriero, M. (Autor:in) / Manni, M. (Autor:in)

    Kongress:

    SAE Powertrain & Fluid Systems Conference & Exhibition ; 2002



    Erscheinungsdatum :

    2002-10-21




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    109 Ceramic Diesel Engine with Turbocharger

    Miyagi, Yasuo / Tsukada, Yuji / Nishikawa, Kazumi et al. | TIBKAT | 1989


    Development of Fuel Consumption of Passenger Diesel Engine with 2 Stage Turbocharger

    Choi, Changryul / Cho, Sunghwan / Kwon, Sunhyuk | SAE Technical Papers | 2006


    DIESEL ENGINE TRANSIENT OPERATION WITH TURBOCHARGER COMPRESSOR SURGING

    Theotokatos, G. / Kyrtatos, N.P. | SAE Technical Papers | 2001


    Diesel engine transient operation with turbocharger compressor surging

    Theotokatos,G. / Kyrtatos,N.P. / National Tech.Univ.of Athens,GR | Kraftfahrwesen | 2001