The constant search for more efficient combustion engines with lower levels of CO₂ emissions has contributed to the development of new technologies that could reach severe global environment targets. Most of the new technologies are related to the lift and timing variation of the opening and closing of the intake valves, through variable camshafts. The controlled lift and timing variation allows the air-fuel mixture to be optimized for specific working conditions of the engine without the driver's perception.This paper presents a new design and a new operation concept for the lift variation of the intake valve. The technical and economical feasibility analysis of this new design is done through virtual studies and prototypes in the Alpha phase of the project. The valve lift control optimizes the fuel consumption, and consequently, it reduces the levels of CO₂ emissions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Innovative Solution for the Valve Lifts Variation of Combustion Engines


    Additional title:

    Sae Technical Papers



    Conference:

    21st SAE Brasil International Congress and Exhibition ; 2012



    Publication date :

    2012-10-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Variable valve actuation - switchable and continuously variable valve lifts

    Kreuter, P. / Heuser, P. / Reinicke-Murmann, J. et al. | Tema Archive | 2003


    Variable valve actuation - switchable and continuously variable valve lifts

    Kreuter,P. / Heuser,P. / Reinicke-Murmann,J. et al. | Automotive engineering | 2003


    Variable Valve Actuation - Switchable and Continuously Variable Valve Lifts

    Reinicke-Murmann, Joachim / Böcker, Oliver / Heuser, Peter et al. | SAE Technical Papers | 2003


    Camless Variable Valve Actuator with Two Discrete Lifts

    Zhu, Guoming / Xu, Huaiping / Qian, Jianhua et al. | SAE Technical Papers | 2015


    Car lifts

    Engineering Index Backfile | 1887