The Scuderi engine is a split cycle design that divides the four strokes of a conventional combustion cycle over two paired cylinders, one intake/compression cylinder and one power/exhaust cylinder, connected by a crossover port. This configuration provides potential benefits to the combustion process, as well as presenting some challenges. A Miller cycle configuration of the engine is made possible by turbocharging with a downsized compressor cylinder and has been modeled in 1-dimensional cycle simulation software. Several positive interactions were found between the split cycle engine and Miller cycle operating principles, namely: Parametric variations are made across the operating range of the engine, investigating a range of potential Miller factors and boost levels. Analysis is performed to determine engine performance sensitivity to turbomachinery performance. At low load, a secondary level Miller cycle is applied through the use of early intake valve closure to provide near throttle-less load control. Simulation results indicate that high BMEP and good thermal efficiency are achievable in the main operating region. The resulting improvements in thermal efficiency and maximum BMEP provide the potential for significant fuel energy savings in an automotive application. BMEP provides benefits both through the effect of downsizing reducing the mass and size of the engine payload that must be transported, as well as by allowing the engine to operate at a higher operational BMEP and therefore higher efficiency during typical driving conditions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Miller Cycle Application to the Scuderi Split Cycle Engine (by Downsizing the Compressor Cylinder)


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2012 World Congress & Exhibition ; 2012



    Publication date :

    2012-04-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Miller Cycle Application to the Scuderi Split Cycle Engine (by Downsizing the Compressor Cylinder)

    Branyon, D. / Simpson, D. / Society of Automotive Engineers | British Library Conference Proceedings | 2012


    Scuderi unveils Split-Cycle prototype

    British Library Online Contents | 2009


    Scuderi Split Cycle Research Engine: Overview, Architecture and Operation

    Phillips, Ford / Gilbert, Ian / Pirault, Jean-Pierre et al. | SAE Technical Papers | 2011



    Scuderi split cycle research engine: overview architecture and operation

    Phillips,F. / Gilbert,I. / Pirault,J.P. et al. | Automotive engineering | 2011