New valve control system (HYPER VTEC:Variable Valve Timing and Lift Electronic Control System) having valve inactive mechanism which engine power is made to be united to the environment conservation was developed for motorcycle engines of sport type having higher engine speed. Mass increase in the valve operating system of this system is kept to a minimum with a compact, simple mechanism. The system enables high engine speed up to 13,500 rpm without abnormal motion of valves, having high reliability and durability. In addition, the valve control system has the enhancement of fuel economy and the effect of decreasing the intake and exhaust system sound during 2-valve operation. The switching mechanism part of the operating valve number was manufactured by cold forging, and has decreased costs. This system has been adopted to the sport type motorcycle CB400SF for domestic model in 1999.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Development of the Directly Actuated Variable Valve Control System


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Small Engine Technology Conference & Exposition ; 1999



    Publication date :

    1999-09-28




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Development of the directly actuated variable valve control system

    Tsukui,T. / Tsutsumizaki,K. / Nakajima,M. et al. | Automotive engineering | 1999


    Pressure-Actuated Flow-Control Valve

    Cox, George B., Jr. | NTRS | 1991


    ELECTRIC ACTUATED VALVE

    SCHMITZ DANIEL / HERB GERHARD / STURM SIGURD | European Patent Office | 2022

    Free access

    Electromagnetically Actuated Valve

    HEYER KLAUS / KAESTNER FRANK / ALAZE NORBERT et al. | European Patent Office | 2016

    Free access

    Actuated elastomer valve

    RATNER DANIEL | European Patent Office | 2015

    Free access