Evaluations of the liner pitting protection performance provided by engine coolant corrosion inhibitors and supplemental coolant additives have presented many problems. Current practice involves the use of full scale engine tests to show that engine coolant inhibitors provide sufficient liner pitting protection. These are too time-consuming and expensive to use as the basis for industry-wide specifications. Ultrasonic vibratory test rigs have been used for screening purposes in individual labs, but these have suffered from poor reproducibility and insufficient additive differentiation.A new test procedure has been developed that reduces these problems. The new procedure compares candidate formulations against a good and bad reference fluid to reduce the concern for problems with calibration and equipment variability. Cast iron test coupons with well-defined microstructure and processing requirements significantly reduce test variability. This new procedure is expected to be used in industry specifications defining heavy duty diesel engine coolants and supplemental coolant additives with acceptable liner pitting performance capabilities.


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    Titel :

    A Bench Test Procedure for Evaluating the Cylinder Liner Pitting Protection Performance of Engine Coolant Additives for Heavy Duty Diesel Engine Applications


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Congress & Exposition ; 1996



    Erscheinungsdatum :

    1996-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    A Bench Test Procedure for Evaluating the Cylinder Liner Pitting Protection Performance of Engine Coolant Additives for Heavy Duty Diesel Engine Applications

    Kelley, F. A. / McWilliams, E. J. / Society of Automotive Engineers | British Library Conference Proceedings | 1996


    Diesel Fuel Sulfur and Cylinder Liner Wear of a Heavy-Duty Diesel Engine

    Busenthuer, B. B. / Weiss, E. K. J. / Hardenberg, H. O. | SAE Technical Papers | 1987


    Diesel fuel sulfur and cylinder liner wear of a heavy-duty diesel engine

    Weiss,E.K.J. / Busenthuer,B.B. / Hardenberg,H.O. et al. | Kraftfahrwesen | 1987


    Heavy-Duty Fleet Test Evaluation of Recycled Engine Coolant

    Woyciesjes, P. M. / Frost, R. A. / ASTM; Committee D-15 on Engine Coolants | British Library Conference Proceedings | 1999