A soundproofing device for a transmission according to the present disclosure is provided to transmit the power of one or more prime movers (for example, internal combustion engine and electric motor). The soundproofing device includes a Helmholtz resonator including: a wall that forms a Helmholtz resonance chamber; and an opening formed in the wall so as to cause the Helmholtz resonance chamber to communicate with the outside of the Helmholtz resonance chamber. The wall includes a transmission case that accommodates the transmission and a housing of a component mounted on the transmission (for example, PCU housing). The Helmholtz resonance chamber is formed between the transmission case and the housing.


    Access

    Download


    Export, share and cite



    Title :

    Soundproofing device for transmission


    Contributors:

    Publication date :

    2022-05-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / F23M Verkleidungen, Auskleidungen, Wände oder Türen besonders ausgebildet für Feuerräume oder Brennkammern, z.B. Feuerbrücken , CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES



    SOUNDPROOFING DEVICE FOR TRANSMISSION

    KATO SHOTARO / NISHIMINE AKIKO / TSUKANO FUSAHIRO et al. | European Patent Office | 2020

    Free access

    Soundproofing part and soundproofing device having same

    YASUO YANAI / TAKUJI ITO | European Patent Office | 2015

    Free access

    SOUNDPROOFING MATERIAL

    NAKANE KAZUYASU | European Patent Office | 2021

    Free access

    Vehicle soundproofing structure

    TOYAMA NORITAKA / KOBAYASHI ATSUKO / NAGATOMI KEIKO et al. | European Patent Office | 2022

    Free access

    SOUNDPROOFING MEMBER AND METHOD FOR MANUFACTURING SOUNDPROOFING MEMBER

    SAKAI TAIGA | European Patent Office | 2021

    Free access