A new system developed by the authors to predict the cavitation erosion of the fuel injection system utilizes ultrasonic wave issued by collapse of cavities in the system. This prediction system can replace the conventional time-consuming endurance test and thus greatly contributes to the saving of cost and time. The technical features of this system include: (1) Detection of ultrasonic wave through the fuel injection pipe wall using a piezoelectric sensor, with the ultrasonic wave signal intensity in a higher frequency range increasing with the cavitation intensity, i.e., the leval of energy released by the collapse of cavities; (2) the system output representing effective cavitation intensity which is given after being processed from the raw state in a high pass filter; and (3) capability of dealing with a higher level of accuracy than by the conventional method.


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    Title :

    Prediction of Cavitation Erosion in Diesel Engine Fuel Injection Systems


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1987 SAE International Off-Highway and Powerplant Congress and Exposition ; 1987



    Publication date :

    1987-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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