An air-cooled engine with a finned cylinder may have residual heat between the fins. Residual heat decreases heat release from the cylinder when cooling air is not forced over the engine. In order to induce natural convection in the cylinder, cooling ports were drilled in the fins parallel to the cylinder axis to determine if residual heat could be decreased and additional cylinder cooling could be developed. The effects of the fin configurations on air-cooling were investigated to utilize the cooling ports for a stationary engine and a non-moving motorbike engine.The experimental cylinder design permitted variation in the number of fins and fin pitch. Numbers of fins that had various port sizes and port positions were investigated; in addition, the temperature inside of the cylinder and in the space between the fins was measured. Results indicated that heat release from the cylinder was increased by utilizing the fins with ports as compared to the fins without ports. It was also found that fin pitch, number of fins, port size, port position, and number of ports have significant effects on cylinder temperature. These results can be utilized to improve the design of an air-cooled cylinder by utilizing natural convection.


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    Titel :

    Development of Air-Cooled Cylinder by Utilizing Natural Convection


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Nakashima, Kohei (Autor:in) / Yamamoto, Masago (Autor:in) / Yoshida, Masao (Autor:in) / Ishihara, Soichi (Autor:in)

    Kongress:

    SAE 2005 World Congress & Exhibition ; 2005



    Erscheinungsdatum :

    11.04.2005




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Development of air-cooled cylinder by utilizing natural convection

    Yoshida,M. / Ishihara,S. / Nakashima,K. et al. | Kraftfahrwesen | 2005


    2005-01-1385 Development of Air-Cooled Cylinder by Utilizing Natural Convection

    Yoshida, M. / Ishihara, S. / Nakashima, K. et al. | British Library Conference Proceedings | 2005


    Development of Air-Cooled Cylinder Utilizing Baffle Plates between Fins with Cooling Ports

    Nakashima, K. / Toda, T. / Yoshida, M. et al. | British Library Conference Proceedings | 2007


    Development of air-cooled cylinder utilizing baffle plates between fins with cooling ports

    Nakashima,K. / Toda,T. / Yoshida,M. et al. | Kraftfahrwesen | 2007


    Natural Convection in Horizontal Cylinder

    Anwer, Syed / Hassan, Nadeem | AIAA | 2003