Sistemas hidrodinámicos de transmisión de potencia en locomotoras y automotores actuales

• Autores: Karl Otto Dahler
• Localización: Revista A.I.T., ISSN 0378-3294, Nº. 27, 1979, págs. 9-20
• Idioma: español
• Títulos paralelos:
  • Hydrodynamic power drive systems in modern locomotives and railcars
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• Resumen

  • The railway vehicles with combustion engines need power drive systems, whose characteristics depend on the type of vehicle kind of service to be realized. The diesel engines, and in the same form the glass turbines, only provide its maximum power in a narrow band of drive speeds. For this reason, conversion systems being able to transfer maximum power at the full speed range with minimum loss are necessary.

    The two most used systems to transfer diesel engine power in railway motor vehicles are the electric and the hydrodynamic by means of a double energy conversion. In particular cases, hydrostatic systems are also used.

    In this article, several aspects of hydrodynamic transmission systems are treated. The operations bases of bomb-turbine converter and its coupling to the propulsion unit, as well as some of the principal design requirements are described.

    Some special applications of hydrodynamic conversion systems are also mentioned, such as braking systems suitable to work together with turbotransmissions and cooling equipment of the diesel engine of the vehicle.

    Finally, this article provides some information about vehicles equipped with hydrodynamic turbotransmissions including a data series about achieved performances and maintenance costs.