In automotive automatic transmissions, seal rings made of cast iron or polytetrafluoroethylene (PTFE) have conventionally been installed between the rotary shaft and housing to prevent oil leakage. Recent trends have indicated that there is an increase in the number of cars with automatic transmissions, and leakage past the seal rings has become more critical from a functional view point. In this presentation, the leakage phenomena will be discussed, and seal rings with an improved shape and material will be introduced. The results of this design is a lower rate of leakage.


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    Title :

    Investigation of leakage phenomena and improvement of sealing perforamnce of seal rings used for rotary shafts of automatic transmissions


    Additional title:

    Untersuchung der Leckage-Erscheinungen und Verbesserung der Dichtungsfähigkeit von Dichtringen für rotierende Wellen automatischer Getriebe


    Contributors:
    Kuroki, T. (author) / Sowa, M. (author)

    Published in:

    Publication date :

    1991


    Size :

    8 Seiten, 16 Bilder, 6 Tabellen, 3 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






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