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    • 9. 发明申请
    • Fire resistant sound absorber
    • 防火消声器
    • US20070007062A1
    • 2007-01-11
    • US10555977
    • 2004-04-23
    • Masanori OgawaIto KunoriYasumasa Hayakawa
    • Masanori OgawaIto KunoriYasumasa Hayakawa
    • B62D25/10
    • B60R13/0838
    • The object of the present invention is to provide a sound absorber such as a hood silencer, attached to the underside of the hood panel of a car to absorb sound from the engine, said sound absorber having excellent fire resistance and sound absorbability. To attain said object, the present invention provides a fire resistant sound absorber 1 made of a porous material 2 into which a phenolic resin is impregnated, said porous material 2 using fibers with a fineness in the range of between 0.02 dtex and 50 dtex, with phenolic resin content in said porous material 2 being adjusted to be in the range of between 50 and 200% by mass per unit weight of said porous material 2.
    • 本发明的目的是提供一种安装在汽车发动机罩面板下面的消音器等吸声器,以吸收来自发动机的声音,所述吸声器具有优异的耐火性和吸音性。 为了达到上述目的,本发明提供了一种由多孔材料2制成的耐火吸声器1,其中浸渍有酚醛树脂,所述多孔材料2使用细度在0.02dtex至50dtex之间的纤维, 将所述多孔材料2中的酚醛树脂含量调节至每单位重量的所述多孔材料2的50〜200质量%的范围。