The constant demand by engine builders for increased brake mean effective pressure (bmep) has made piston and ring temperature a serious limiting feature of engine development. The various methods previously employed to cool the piston are contrasted with the new approach of coring the oil-cooling passages by means of a water-soluble core. The development by Wellworthy of three practical foundry techniques embodying this principle which also permits the use of armored top grooves is described, with typical examples of such pistons. The effects of cooling in terms of piston temperature distribution are shown. The technique so far covers pistons 3 to 10 in. in diameter, and is fully patented.The constant demand by engine builders for increased brake mean effective pressure (bmep) has made piston and ring temperature a serious limiting feature of engine development. The various methods previously employed to cool the piston are contrasted with the new approach of coring the oil-cooling passages by means of a water-soluble core. The development by Wellworthy of three practical foundry techniques embodying this principle which also permits the use of armored top grooves is described, with typical examples of such pistons. The effects of cooling in terms of piston temperature distribution are shown. The technique so far covers pistons 3 to 10 in. in diameter, and is fully patented.


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    Titel :

    Oil-Cooled Aluminium Alloy Diesel Engine Pistons - A New Approach


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Law, D. A. (Autor:in) / Day, R. A. (Autor:in)

    Kongress:

    National Powerplant Meeting ; 1969



    Erscheinungsdatum :

    1969-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Diesel engine pistons

    Vedeler, G. | Engineering Index Backfile | 1932


    Aluminium Alloy Pistons

    Arend, A.G. | Emerald Group Publishing | 1934


    Diesel engine pistons

    Vedeler, G. | Engineering Index Backfile | 1932



    Aluminium alloy pistons fibre reinforced

    Fortina, G. / Morsetti, G. P. / Associazione Tecnica Dell'Automobile | British Library Conference Proceedings | 1994