A field survey of diesel engines in light commercial trucks showed that the failure profile could be described by an early failure region, indicative of manufacturing quality, and an exponential distribution, representing the reliability of the engine, merging into a log-normal wear-out region. An overall reliability of 0. 9 after a year' s service was apparently required. Engine availability could be improved significantly, in a cost effective manner, by the selective upgrading of components and sub-assemblies according to their criticality.Conventional design criteria do not recognise the need for modifying the failure risk of individual parts and assemblies according to their likely impact on the operational behaviour of the engine as a whole. An alternative methodology was derived, therefore, as part of the design and validation of a 5. 8ℓ(354 in3) engine intended predominantly for the N. American Class VI truck market. The development of this revised design and development approach is described.


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    Titel :

    Design and Development Criteria for Automotive Diesels


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Bertodo, R. (Autor:in)

    Kongress:

    1977 International Automotive Engineering Congress and Exposition ; 1977



    Erscheinungsdatum :

    1977-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Design and Development Criteria for Automotive Diesels

    Bertodo,R. / Perkins Engines,GB | Kraftfahrwesen | 1977


    Fuels for automotive diesels

    Butler, W.H. | Engineering Index Backfile | 1931


    Fuels for automotive diesels

    Butler, W.H. | Engineering Index Backfile | 1931


    Turbocharged automotive diesels from VM

    Chellini, R. | Tema Archiv | 1979


    Turbocharged Automotive Diesels From VM

    Chellini,R. / Stabilimenti Meccanici VM,Cento,IT | Kraftfahrwesen | 1979