The purpose of this research was to predict the amount of wear on exhaust valve seats in durability testing of gasoline engines. Through the rig wear test, a prediction formula was constructed with multiple factors as variables. In the rig test, the wear rate was measured in some cases where a number of factors of valve seat wear were within a certain range. Through these tests, sensitivity for each factor was determined from the measured wear data, and then a prediction formula for calculating the amount of wear was constructed with high sensitivity factors. Combining the wear amount calculation formula with the operation mode of the actual engine, the wear amount in that mode can be calculated. The calculated wear amount showed a high correlation with the wear amount measured in bench tests and the wear amount measured in vehicle tests. Also the influence of wear on differing valve seat materials and valve diameters was determined by rig test, and the amount of wear in corresponding actual engines could be predicted.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Prediction of Wear Loss of Exhaust Valve Seat of Gasoline Engine Based on Rig Test Result


    Additional title:

    Sae Int. J. Engines



    Conference:

    WCX World Congress Experience ; 2018


    Published in:

    Publication date :

    2018-04-03


    Size :

    8 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Prediction of Wear Loss of Exhaust Valve Seat of Gasoline Engine Based on Rig Test Result

    Kishiwada, Satoshi / Shiwa, Yoshikatsu / Yoshii, Kenta et al. | British Library Conference Proceedings | 2018



    Investigation of the Mechanism of Exhaust Valve Seat Wear in Engines Run on Unleaded Gasoline

    Godfrey, Douglas / Courtney, Richard L. | SAE Technical Papers | 1971


    Electromagnetic valve train for gasoline engine exhaust system

    Fan, X. Y. / Liu, L. / Chang, S. Q. et al. | Online Contents | 2016


    Electromagnetic valve train for gasoline engine exhaust system

    Fan, X. Y. / Liu, L. / Chang, S. Q. et al. | Springer Verlag | 2016