The heat that a nozzle generates under the multi-cycle working conditions and the large pressure difference at the orifice cause the temperature of the nozzle to rise, which affects the injection characteristics. Therefore, an infrared thermal camera was used in this study to examine the temperature distribution in a Bosch common rail injector and the variations of the nozzle maximum temperature rise. The results showed that transient temperature at the nozzle of the injector and the steady-state temperature rise with the increase in the injection pressure and frequency. The effect of the injection pressure was the most significant, and the effect of the injection frequency was small. At different injection frequencies and injection pressures, the maximum temperature rise at the nozzle increased rapidly in the first 10 min, after which it slowly increased. The temperature at the nozzle reach the equilibrium after 30 min of injector operation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Investigation of Maximum Temperature Rise on High Pressure Common Rail Injector Nozzle


    Additional title:

    Sae Technical Papers


    Contributors:
    Zhao, Jianhui (author) / Wei, Kebiao (author) / Yue, Pengfei (author)

    Conference:

    WCX SAE World Congress Experience ; 2019



    Publication date :

    2019-04-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Investigation of Maximum Temperature Rise on High Pressure Common Rail Injector Nozzle

    Zhao, Jianhui / Wei, Kebiao / Yue, Pengfei | British Library Conference Proceedings | 2019


    Experimental Investigation of the Sprays of an Axi-Symmetric Nozzle of a Common-Rail High Pressure Electro-Injector

    Ficarella, A. / Laforgia, D. / Starace, G. et al. | SAE Technical Papers | 1997


    Experimental investigation of the sprays of an axi-symmetric nozzle of a common-rail high pressure electro-injector

    Ficarella,A. / Laforgia,D. / Starace,G. et al. | Automotive engineering | 1997


    Simulation Analysis of High Pressure Common Rail Injector

    Chen, Peng / Chen, Hui / Ju, Yusheng | VDE-Verlag | 2022


    Internal Injector Deposits in High-Pressure Common Rail Diesel Engines

    Kulinowski, Alexander M. / Bennett, Joshua J. / Galante-Fox, Julie M. et al. | SAE Technical Papers | 2010