The BMW in-line six-cylinder engine has been modified and introduced to production in the new BMW 3 Series model. Its major features include variable intake and exhaust camshaft timing, a new induction system with resonance charging, a turbulence-generating system in the intake ports and a new exhaust system with two closed-loop, coupled catalysts integrated into the exhaust manifold. The cam timing of both camshafts can be adjusted continuously within a range of 40° crank angle (CA) for the inlet cams and 25° CA for the exhaust cams. The turbulence-generating system supplies combustion air to the engine during part load operation and produces the necessary charge motion to run the engine with greater valve overlap at low loads and speeds. Its combination with variable camshaft timing results in lower fuel consumption and exhaust emissions that meet the LEV emission standard. In addition, the variable cam timing raises the torque curve of the unthrottled engine, particularly at low engine speed. The maximum values for torque and power output are unchanged, but maximum torque is reached 500 r/min earlier than with the previous engine.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Thermodynamics and charge exchange of the new BMW six-cylinder engine


    Contributors:
    Otto, E (author) / Rubbert, S (author) / Borrmeister, J (author)


    Publication date :

    2000-08-01


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Thermodynamics and charge exchange of the new BMW six-cylinder engine

    Otto,E. / Rubbert,S. / Borrmeister,J. et al. | Automotive engineering | 2000



    Thermodynamics and charge exchange of the new BMW six-cylinder engine

    Otto, E. / Rubbert, S. / Borrmeister, J. | FID move | 2000

    Free access

    Simulating Transient Multi-Cylinder Engine Gas Exchange Dynamics on a Single-Cylinder Research Engine

    Moskwa, John J. / Lahti, John L. / Snyder, Matthew W. | SAE Technical Papers | 2006


    Simulation transient multi-cylinder engine gas exchange dynamics on a single-cylinder research engine

    Snyder,M.W. / Lahti,J.L. / Moskwa,J.J. et al. | Automotive engineering | 2006