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公开(公告)号：US20110108358A1
公开(公告)日：2011-05-12
申请号：US12613877
申请日：2009-11-06
IPC分类号： F02M35/12
CPC分类号： F02M35/1266
摘要： A resonator attenuates sound waves at first and second frequencies. The resonator includes a first tube, and a second tube received within the first tube. Both tubes have an open end and a closed end. The first tube has an axial length which is longer than the axial length of the second tube. The first tube attenuates sound waves at the first frequency and the second tube attenuates sound waves at the second frequency. The second tube has an outer wall which engages an inner wall of the first tube. The open end of the second tube is surrounded by the open end of the first tube. The open end of the first tube is attached to an engine air intake conduit. The conduit communicates air from a charge air cooler to an engine intake manifold.
摘要翻译： 谐振器在第一和第二频率衰减声波。 谐振器包括第一管，以及容纳在第一管内的第二管。 两个管都有开口端和封闭端。 第一管具有比第二管的轴向长度更长的轴向长度。 第一管衰减第一频率的声波，第二管衰减第二频率的声波。 第二管具有与第一管的内壁接合的外壁。 第二管的开口端由第一管的开口端包围。 第一管的开口端连接到发动机进气管。 导管将空气从增压空气冷却器连接到发动机进气歧管。
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公开(公告)号：US07503424B2
公开(公告)日：2009-03-17
申请号：US11316041
申请日：2005-12-22
申请人： Adam Joe Shuttleworth , Jeffrey John Girard , Paul Thomas Bruss , James Reginald Byrd , Jason Michael Edgington , Loren Avan DeVries
发明人： Adam Joe Shuttleworth , Jeffrey John Girard , Paul Thomas Bruss , James Reginald Byrd , Jason Michael Edgington , Loren Avan DeVries
IPC分类号： G10K11/172
CPC分类号： B60R13/0815 , B60R11/0217 , B60R13/0225 , B60R2013/0287
摘要： A vehicle cab noise suppressing system includes a cab interior panel having an opening exposed to acoustic noise in the cab, an acoustic resonator chamber, and a conduit communicating the resonator chamber to the opening. The resonator chamber is formed by a plurality of walls which are spaced apart from the interior panel and which are formed by a second panel. A third panel cooperates with the walls to enclose the resonator chamber. The chamber volume and the diameter and length of the conduit are chosen so as to acoustically tune the chamber to a noise frequency in the cab and thereby reduce noise in the cab.
摘要翻译： 车辆驾驶室噪声抑制系统包括驾驶室内部面板，驾驶室内部面板具有暴露于驾驶室内的声学噪声的开口，声学谐振腔，以及将谐振器室连通到开口的导管。 谐振腔由多个与内板隔开并由第二面板形成的壁形成。 第三面板与壁配合以包围谐振腔。 导管的容积和导管的直径和长度被选择为将腔室声学调谐到驾驶室内的噪声频率，从而降低驾驶室内的噪音。
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公开(公告)号：US20080236693A1
公开(公告)日：2008-10-02
申请号：US11693794
申请日：2007-03-30
IPC分类号： F16L55/00
CPC分类号： F01N13/08 , F01N13/14 , F01N2260/20 , F01N2450/00
摘要： The invention relates to an exhaust pipe assembly. There is a need for an exhaust pipe assembly which transmits less noise to the environment. The exhaust pipe assembly includes a hollow exhaust pipe, and a hollow shield which surrounds at least a portion of the pipe. The shield is supported from and separated from the pipe by a plurality of elastomeric support elements which are interposed between the pipe and the shield. Each support element includes a larger body positioned between the pipe and the shield, and a smaller stem which projects from the body and extends into a bore formed in the shield. Each support element is preferably formed by injecting an elastomeric material through a corresponding one of the bores to form the body in the space between the pipe and the shield.
摘要翻译： 本发明涉及排气管组件。 需要一种将噪音传递给环境的排气管组件。 排气管组件包括中空排气管，以及围绕管道的至少一部分的中空罩。 屏蔽件通过插入在管道和屏蔽之间的多个弹性体支撑元件从管支撑并与管分离。 每个支撑元件包括位于管和屏蔽之间的较大的主体，以及较小的杆，其从主体突出并延伸到形成在屏蔽中的孔中。 每个支撑元件优选地通过将弹性体材料注入通过相应的一个孔而形成，以在管和屏蔽之间的空间中形成主体。
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