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    • 1. 发明申请
    • SEALING DEVICE
    • 密封装置
    • US20160146167A1
    • 2016-05-26
    • US14903515
    • 2014-05-28
    • NOK CORPORATION
    • Masahiko INOUETomonari SAITOYasushi SASAKI
    • F02M35/12F02M35/10F02F11/00
    • F02M35/1211F02D9/104F02F11/00F02M29/04F02M35/10091F02M35/10262F02M35/1216F02M35/1283Y02T10/146
    • A sealing device that is capable of suppressing the generation of unusual noise by guiding a gas flow and suppressing the generation of unusual noise caused by resonance between the gas flow and a pipe. An intake noise reduction portion (20) includes a flow-guiding net portion (21) for guiding a gas flowing in an intake pipe, an annular frame body portion (22) for supporting the flow-guiding net portion (21), a cylindrical portion (23) that extends from the frame body portion (22) in a direction in which the pipe extends, and is fitted into an inner circumferential surface of a second pipe (220) and a flange portion (24) that extends from an end portion of the cylindrical portion (23) toward an outer circumferential surface side, and is disposed in a space between an end surface of a first pipe (210) and an end surface of the second pipe (220). A gasket portion (10) is provided on both surfaces of the flange portion (24).
    • 一种密封装置,其能够通过引导气体流动并抑制由气体流与管道之间的共振引起的异常噪声的产生来抑制异常噪声的产生。 进气噪声降低部分(20)包括用于引导在进气管中流动的气体的导流网部分(21),用于支撑导流网部分(21)的环形框架主体部分(22),圆柱形 所述部分(23)从所述框架主体部分(22)沿所述管道延伸的方向延伸并且装配到第二管道(220)的内周表面和从端部延伸的凸缘部分(24) 所述圆筒部(23)的一部分朝向外周面侧,并且配置在所述第一管(210)的端面与所述第二管(220)的端面之间的空间中。 在凸缘部分(24)的两个表面上设有垫圈部分(10)。
    • 7. 发明申请
    • SILENCER
    • 沉默
    • US20080264719A1
    • 2008-10-30
    • US12101731
    • 2008-04-11
    • Naohito SekoToshiaki NakayamaYoshitaka NishioSeiji Tachibana
    • Naohito SekoToshiaki NakayamaYoshitaka NishioSeiji Tachibana
    • F02M35/12F01N1/00
    • F02M35/1277F02M35/1283
    • A silencer for attenuating a sound includes an inner duct in which gas flows, and an outer duct surrounding the inner duct with a gas layer formed between the outer duct and the inner duct. The sound is generated in one of an upstream side of the inner duct in a gas flow direction, a downstream side of the inner duct in the flow direction, and an inside of the inner duct. The inner duct includes a thin film over its entire surface. The film has a first reinforcement section formed in a direction parallel to the flow direction, and a plurality of vibrating surfaces. The film is bent at the first reinforcement section. Each combination of adjacent two of the plurality of vibrating surfaces is connected by the first reinforcement section. The first reinforcement section of the inner duct is fixed to the outer duct.
    • 用于衰减声音的消声器包括气体流过的内部管道和围绕内部管道的外部管道,其中外部管道和内部管道之间形成有气体层。 声音在内管道的上游侧,气流方向,内管的流动方向的下游侧,内管的内部产生。 内部管道在其整个表面上包括薄膜。 薄膜具有沿与流动方向平行的方向形成的第一加强部和多个振动面。 胶片在第一个加强部分弯曲。 多个振动表面中的相邻两个的每个组合通过第一加强部连接。 内管的第一加强段固定在外管上。