The paper first of all outlines the advantages of the locomotive with an internal combustion engine as compared with the steam locomotive, either with reciprocating engine or steam-turbine, from the point of view of organic efficiency, performance and fuel cost, and states that the steam locomotive is today giving way to its heirs: electric traction and diesel traction. It then describes the various problems which arise in the realization of the diesel locomotive, outlining the views of the firm of ANSALDO as follows: 1. Adoption of the classification laid down by the O.R.E. 2. Tendency towards total adhesion, except in the event of the track having rails which only allow of a very small load per axle. 3. Tendency to prefer the solution which utilizes a single diesel engine up to 1000 hp and two engines exceeding this power. 4. Preference for engines with a high angular velocity (1500 r.p.m.). 5. Preference for supercharged engines. 6. Adoption of electric or pneumatic starting, with a preference for the latter. 7. Realization with the 'Ansaldo-Maybach' diesel engine, which has the following characteristics: compact design, highly effective lubrication and cooling, high angular velocity, high mean effective pressure, reduced fuel consumption. 8. Adoption of mechanical, electric or turbo-hydraulic transmission. As regards the last mentioned type, the paper describes the VOITH and the MAYBACHMEKYDRO transmission gears. The paper gives the reasons against the adoption of the differential gear. 9. Adoption of cooling units of the VOITH and MAYBACH types. 10. Adoption of appropriate measures to ensure good visibility and the necessary comfort for the driver. 11. Adoption of the standards laid down by the O.R.E. for the standardization of diesel locomotives in Europe. The paper concludes that although the diesel locomotive has been realized, important problems are still being discussed by technicians and research is being continued with a view to achieving more and more satisfactory results.


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    Title :

    Les locomotives avec moteur a combustion interne suivant l'experience Ansaldo


    Additional title:

    Lokomotivantriebe mit Verbrennungsmotoren nach Ansaldo
    Locomotives equipped with internal combustion engines according to Ansaldo's practice


    Contributors:


    Publication date :

    1955


    Size :

    30 Seiten, 9 Bilder, 1 Tabelle


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    French




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