A better understanding of the processes influencing engine performance aided by the availability of powerful computers and complex mathematical models has allowed a significant increase in power output without sacrificing reliability and durability. During the design evolution, objectives have been good fuel economy, lower specific weight and volume, accessibility and maintainability. These have been met in part by the fact that a 12 cylinder engine can now be substituted for 16. The use of a single turbocharger and redesigned air and exhaust manifold systems has significantly simplified the engine design and yielded a more compact engine. This concept has been successfully exploited by British Rail in the design of their new locomotive, the Class 58 to complement the current Class 56 locomotive. The new Class 58 locomotive is based on a simple underframe with a bonnet type structure employing a modular type construction of cab, power and electrical equipment. This concept allows the revised engine to be exploited to advantage in reduced maintenance and improved engine environment. The paper describes examples of the experimental and analytical work featured in the design and development of the engine and in particular the part played by the turbocharger and manifolds in the achievement of improved engine performance. The part played by the finite element analysis in basic mechanical design is also discussed.


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    Title :

    Enhanced engine design meets the requirements of British Rail's new freight locomotive


    Additional title:

    Verbesserter Motor erfüllt die Anforderungen der British Rail an die neue Güterzuglokomotive


    Contributors:
    Whattam, M. (author) / Sinha, S.K. (author)


    Publication date :

    1983


    Size :

    44 Seiten, 22 Bilder, 3 Tabellen, 9 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English





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