A new passive muffler valve has been developed that offers the advantages of both the current passive and active valves without their major drawbacks. Like current passive valves this new valve provides high restriction at low to medium engine speeds for improved noise control. But with a near over-center spring action and unique flap shape, this high performance valve has minimal pressure drop at high engine speeds, closer to the active valve pressure drop performance.The in-line design of the valve makes it ideal for low restriction OE mufflers, resonators, and aftermarket performance mufflers.The new valve design is uncomplicated, with few components and has been tested extensively for durability utilizing both bench and vehicle level testing.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A High Performance Passive Muffler Valve


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2009 Noise and Vibration Conference and Exhibition ; 2009



    Publication date :

    2009-05-19




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    ELECTRONIC VALVE FOR MUFFLER

    KANG JONG HWA / KIM HYUN SOO | European Patent Office | 2015

    Free access

    Innovative Passive Exhaust Valve Improves Sound Quality and Reduces Muffler Volume without Backpressure Penalty

    Kotrba, Adam / Benthara, Asela / Ostromecki, Gabriel et al. | SAE Technical Papers | 2020


    MUFFLER

    MORI KOICHI | European Patent Office | 2023

    Free access

    Muffler

    KAINUMA KATSUHIKO / KAJIKAWA MASAHIRO | European Patent Office | 2016

    Free access

    MUFFLER

    ANDO YOSUKE / KONDO TAKUYA | European Patent Office | 2021

    Free access