One of the phenomena accompanying the lightweight/compact/high power output feature of engines is the cylinder bore deformation, which may readily cause increased oil consumption, gas leakage, unusual wear, scuffing, etc.. The authors have had experiences that piston rings had generated contact failure during engine operation (1)*. Such deformation is generated as a combination of the static deformation due to head bolt tightening, crankshaft installation, etc., and the deformation by the operating factors; thermal load and combustion pressure. Countermeasure of design have been made for the former (2)*, and prediction of the deformation during actual operating have been tried using FEM analysis, etc. for the latter (3)*. Therefore, the accurate measurement result have been required strongly, for a long time. But it could not be realized in the past.In this study, the unique and special method has been developed in order to measure the whole cylinder bore shape directly from a piston ring land under the operation upto high-speed and high-load.


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    Titel :

    Measurement of Cylinder Bore Deformation During Actual Operating Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Fujimoto, Hiroya (Autor:in) / Furuhama, Shoichi (Autor:in) / Goto, Takaharu (Autor:in) / Yoshihara, Yuji (Autor:in)

    Kongress:

    International Congress & Exposition ; 1991



    Erscheinungsdatum :

    1991-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Measurement of cylinder bore deformation during actual operating engines

    Fujimoto,H. / Yoshihara,Y. / Goto,T. et al. | Kraftfahrwesen | 1991


    Direct cylinder bore measurement during engine operation

    Al-Khatib,R.F. / Glasspoole,W.F. / Thomas,T.R. | Kraftfahrwesen | 1988



    Small-bore engines

    Online Contents | 1994


    Cylinder bore wear

    Taub, A. | Engineering Index Backfile | 1939