Aerodynamic downforce is generated by an automobile diffuser located on the aft section of a motor vehicle's underbody. The upsweeping inclination of the diffuser ramp wall enables the expansion of airflow traveling through the diffuser to induce suction underneath the motor vehicle—thereby enhancing traction between the tires and road surface. However, moving (or rolling) the diffuser ramp wall in the airflow direction further increases suction and airflow speed underneath the vehicle and through the diffuser. As a result, downforce in-turn is enhanced.


    Access

    Download


    Export, share and cite



    Title :

    ROLLING DIFFUSER RAMP FOR MOTOR VEHICLE


    Contributors:

    Publication date :

    2025-05-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



    Diffuser device for motor vehicle

    BACH ROLF / BENSING TOBIAS / JEHLE-GRAF ERICH et al. | European Patent Office | 2024

    Free access

    Air diffuser for motor vehicle

    DE CAMPO MELGAREO LUIS / JUAREZ ENGUIDANOS ANTONIO / PRADAS CORIN AUGUSTO | European Patent Office | 2022

    Free access

    Motor vehicle with a rear diffuser

    WOLF THOMAS | European Patent Office | 2016

    Free access

    MOTOR VEHICLE WITH A REAR DIFFUSER

    WALLRABE SVEN / SENCHENKOV ILYA / BEIERL DOMINIK | European Patent Office | 2022

    Free access

    MOTOR VEHICLE WITH A REAR DIFFUSER

    WOLF THOMAS | European Patent Office | 2015

    Free access