Vehicle manufactures are significantly increasing the production of Direct Injection Gasoline (DIG) engines to help meet the requirements of governmental regulations and the demands of consumers. While DIG powertrains offer multiple advantages over conventional gasoline engines they can be susceptible to fuel related deposit formation, specifically within the fuel injector nozzle. Fuel injector deposits have been linked to a number of negative effects that can impact the normal operation of the engine.A DIG deposit test has been developed to evaluate Deposit Control Additives (DCA) and their effect on injector deposits. Multiple metrics for evaluating fuel injector deposits were investigated to determine a suitable method for quantifying deposit formation. Interrogation of the vehicle On-Board Diagnostic (OBD) system was identified as the optimal method for quantifying deposit formation throughout the duration of the test.Accelerated DIG deposit testing was carried out on a wide variety of late model DIG vehicles on a chassis dynamometer for the purpose of evaluating and discriminating DIG DCA products and candidates. In addition, ongoing testing with a vehicle fleet is being conducted to determine if real-world injector deposits will form while using commercial fuels with DCAs.Testing has shown that DCAs can be developed to specifically prevent and control deposit formation within DIG injectors. Conversely, DCAs that are formulated to reduce Port Fuel Injector (PFI) deposits may not effectively control DIG injector deposits.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Measurement and Control of Fuel Injector Deposits in Direct Injection Gasoline Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE/KSAE 2013 International Powertrains, Fuels & Lubricants Meeting ; 2013



    Publication date :

    2013-10-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Measurement and Control of Fuel Injector Deposits in Direct Injection Gasoline Vehicles

    Smith, S.S. / Imoehl, W. / Society of Automotive Engineers | British Library Conference Proceedings | 2013


    Quantifying Real-World Fuel Economy Losses Caused by Injector Deposits in Gasoline Direct Injection Vehicles

    Taylor, Daniel J. / Sears, Brian / Galante-Fox, Julie | British Library Conference Proceedings | 2022


    Quantifying Real-World Fuel Economy Losses Caused by Injector Deposits in Gasoline Direct Injection Vehicles

    Sears, Brian / Taylor, Daniel J. / Galante-Fox, Julie | SAE Technical Papers | 2022



    A Method for Suppressing Formation of Deposits on Fuel Injector for Direct Injection Gasoline Engine

    Saito, Akinori / Shibata, Hitoshi / Kinoshita, Masao et al. | SAE Technical Papers | 1999