Today's fuel systems place many demands on the seals containing liquid and vapor hydrocarbons. California Air Resource's LEV II and EPA's Tier 2 demands require fuel systems which are essentially hermetically sealed with a robust, long term (12-15 year), life. Two properties which are key to long-term seal life are the material's ability to retain it's sealing force, and the ability to resist fuel permeation.To evaluate these two fuel seal properties, testing was conducted on a number of rubber compounds including HNBR, an HNBR-fluoroplastic alloy, FVMQ (fluorosilicone), an FKM-FVMQ blend, and FKM. To evaluate permeation through a seal, Thwing Albert cups were fitted with stainless steel lids and sealing gaskets prepared from the various test materials. Fuel losses through the gaskets were determined at elevated temperatures. Long term, >1000 hour, stress relaxation testing was conducted in “hot” 60°C fuel and “sour” fuel on these compounds. The results of the permeation though sealing materials and the stress relaxation in fuel will be presented in this paper.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Permeation and Stress Relaxation Resistance of Elastomeric Fuel Seal Materials


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2001 World Congress ; 2001



    Erscheinungsdatum :

    2001-03-05




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Permeation and stress relaxation resistance of elastomeric fuel seal materials

    Stevens,R.D. / DuPont Dow Elastomers,US | Kraftfahrwesen | 2001


    2001-01-1127 Permeation and Stress Relaxation Resistance of Elastomeric Fuel Seal Materials

    Stevens, R. D. / SAE | British Library Conference Proceedings | 2001


    Automotive Fuel Permeation Resistance - A Comparison of Elastomeric Materials

    MacLachlan,J.D. / DuPont,Elastomer Chemicals Dep.,US | Kraftfahrwesen | 1979



    Permeation and Stress Relaxation Testing of Fuel Seal Materials; A Comparison of Fuel System Elastomers

    Stevens, R. D. / RAPRA Technology | British Library Conference Proceedings | 2000