公开(公告)号：US20040089500A1

公开(公告)日：2004-05-13

申请号：US10698864

申请日：2003-10-31

申请人： White Brothers Performance Products, Inc.

发明人： Simon J. Lewis

IPC分类号： F01N003/02 ,  F01N003/06 ,  F01N001/02 ,  F01N001/10

CPC分类号： F01N13/1805 ,  F01N1/10 ,  F01N3/06 ,  F01N13/18 ,  F01N2310/02

摘要： A muffler includes a tubular body having an interior surface extending between a first end and an opposing second end, the interior surface bounding a chamber. An exhaust cap is disposed on the second end of the tubular body, the exhaust cap having an interior surface bounding a channel that communicates with the chamber. An inlet cap is disposed on the first end of the tubular body. A perf tube is longitudinally disposed within the chamber of the tubular body. A spark arrestor includes a tubular neck advanced within the channel of the exhaust cap toward the body. A spark barrier is mounted on an end of the tubular neck so as to be at least partially disposed within the perf tube, the spark barrier being comprised of a sheet of mesh or porous material.

摘要翻译： 消声器包括管状体，其具有在第一端和相对的第二端之间延伸的内表面，所述内表面限定室。 排气盖设置在管状体的第二端上，排气盖具有界定与室连通的通道的内表面。 入口盖设置在管状体的第一端上。 纵管设置在管状体的腔室内。 火花放电器包括在排气帽的通道内向身体前进的管状颈部。 火花屏障安装在管状颈部的端部上，以便至少部分地设置在灌注管内，火花屏障由一片网状物或多孔材料组成。

公开(公告)号：US20020070075A1

公开(公告)日：2002-06-13

申请号：US09990400

申请日：2001-11-21

发明人： Henri Lepoutre

IPC分类号： F01N001/02

CPC分类号： F02M35/1261 ,  F02M35/1283

摘要： A silencing apparatus to be fitted between a first air or fluid intake duct (1) and a second air or fluid exhaust duct (2), said silencing apparatus being notably fitted between an engine turbine and a thermal exchanger and including a cylindrical main hollow body (3), a cylindrical input connection (4) and a cylindrical output connection (4null) with one or a plurality of straight sections smaller than the straight section of said main body (3), and at least one partitioning part (8) defining with the internal surface of said main hollow body at least two toric chambers (9, 10).

摘要翻译： 一种安装在第一空气或液体进入管道（1）和第二空气或流体排放管道（2）之间的消音装置，所述消音装置特别地装配在发动机涡轮机和热交换器之间，并且包括圆柱形主中空体 （3），具有小于所述主体（3）的直线部分的一个或多个直线部分的圆柱形输入连接件（4）和圆柱形输出连接件（4'），以及至少一个分隔部件（8） 与所述主中空体的内表面限定至少两个复曲面室（9,10）。

公开(公告)号：US20040262077A1

公开(公告)日：2004-12-30

申请号：US10836777

申请日：2004-04-30

发明人： Norman T. Huff ,  Larry J. Champney ,  Ahmet Selamet ,  Iljae Lee

IPC分类号： F01N001/02 ,  F01N001/00

CPC分类号： F01N1/006 ,  F01N1/023 ,  F01N1/04 ,  F01N1/24 ,  F01N2310/02 ,  F01N2470/02

摘要： The invention relates to an exhaust silencer or muffler for an internal combustion engine, in particular a silencer with the damping characteristics of a resonator with the absorptive characteristics of a dissipative silencer. The silencer of the present invention provides an improved silencer or muffler for use with an internal combustion engine that incorporates both a dissipative silencer and a resonator in a single muffler assembly suitable for use with standard automotive construction techniques.

摘要翻译： 本发明涉及一种用于内燃机的排气消音器或消音器，特别是具有消声消音器的吸收特性的谐振器的阻尼特性的消音器。 本发明的消音器提供了一种改进的消音器或消声器，用于内燃机，该消音器或消音器将消散消音器和谐振器同时结合在适合于与标准汽车构造技术一起使用的单个消声器组件中。

公开(公告)号：US20040140149A1

公开(公告)日：2004-07-22

申请号：US10754327

申请日：2004-01-09

发明人： Gregory Weston Terpay ,  George G. Zipfel

IPC分类号： F16K047/02 ,  F16L055/02 ,  F01N001/02

CPC分类号： B64C27/001 ,  B64C2027/002

摘要： A passive device is provided for reducing vibration and noise in a hydraulic system. The passive device includes a tubular element having an open end and a closed end. The open end of the tubular element is adapted to be attached to a fluid conduit carrying pressurized fluid in the system so that the tube fills with the pressurized fluid. The area and length of the tube are such that the fluid within the tube has a resonant condition at a frequency that is the same as at least one frequency of the vibration and noise that is to be reduced or removed in the hydraulic system. A helicopter is also provided having a hydraulic system of pressurized fluid for reducing the transfer of vibrations from the transmission to the airframe including the passive device. Several such passive devices may be applied at selected locations in a hydraulic system for effectively reducing high frequency vibration and noise due to, for example, helicopter transmission gear clashing.

摘要翻译： 提供了一种无源器件，用于减少液压系统中的振动和噪音。 被动装置包括具有开口端和封闭端的管状元件。 管状元件的开口端适于附接到在系统中承载加压流体的流体导管，使得管填充加压流体。 管的面积和长度使得管内的流体具有与在液压系统中要减少或去除的振动和噪声的至少一个频率相同的频率的共振条件。 还提供一种具有加压流体的液压系统的直升机，用于减少从变速器到包括被动装置的机身的振动传递。 可以在液压系统中的选定位置处应用若干这样的无源装置，用于有效地减少由于例如直升机传动装置碰撞引起的高频振动和噪声。

公开(公告)号：US20020079160A1

公开(公告)日：2002-06-27

申请号：US09740834

申请日：2000-12-21

发明人： Shun-Lai Chen

IPC分类号： F01N001/02

CPC分类号： F01N1/24 ,  F01N2470/02 ,  F01N2490/16

摘要： A motor vehicle muffler having a muffler loop installed in a casing in the exhaust pipe of a motor vehicle, the muffler loop formed of three muffler tubes and two connecting tubes, the muffler tubes being arranged at different elevations in the casing and crossed by one another at the same point, the connecting tubes being arranged in parallel outside the casing to connect the muffler tubes in series.

摘要翻译： 一种机动车消声器，其具有安装在机动车辆的排气管中的壳体中的消声器回路，由三个消声器管和两个连接管形成的消声器回路，消音器管布置在壳体中的不同高度并彼此交叉 在同一点上，连接管平行布置在壳体外部以串联连接消声器管。

公开(公告)号：US20010015301A1

公开(公告)日：2001-08-23

申请号：US09793234

申请日：2001-02-26

发明人： Stephen H. Kesselring

IPC分类号： F01N001/02

CPC分类号： F01N1/08 ,  F01N1/12 ,  F01N2260/14 ,  F01N2470/04 ,  F01N2470/24

摘要： An exhaust muffler for a motor vehicle includes a louver tube having an intake end and an exhaust end. An outer tube, consisting of a frustoconical portion and a cylindrical portion, is concentrically arranged around the louver tube. A plurality of louvers and associated louver holes in the louver tube scoop a portion of gasses from the louver tube into the outer tube. An end cap, which includes an exhaust exit hole in its center, fits into an exhaust end of the outer tube. A plurality of end cap holes are arranged so that gasses leaving the outer tube flow through them. A restrictor disk between the end cap and louver tube includes a central hole coaxial with the louver tube and the exhaust exit hole of the end cap. Restrictor disk holes are in the restrictor disk between the central hole and its perimeter so that gasses leaving the louver tube flow through the central hole and the restrictor disk holes as they leave the muffler. A spiral vane defining a helical passage around the louver tube and inside the outer tube extends the path length of the gasses in the outer tube. A series of fins on the spiral vane extend orthogonal to an axis of the louver tube. A series of inner reverse cones are inside the louver tube upstream of its exhaust end. An exhaust system with this muffler is characterized by moderate backpressure at low rpms and little or negative backpressure at high rpms.

公开(公告)号：US20040216951A1

公开(公告)日：2004-11-04

申请号：US10426558

申请日：2003-05-01

发明人： Chao Cai ,  Ming Cheng ,  Kin Chew Hung

IPC分类号： F01N001/02

CPC分类号： F01N1/087 ,  F01N1/089 ,  F01N2470/02 ,  F01N2470/10 ,  F01N2470/18 ,  F01N2490/04

摘要： A high performance muffler, e.g., for an internal combustion engine, reduces exhaust or other gas noise while maintaining a low backpressure to prevent engine power loss. A side inlet pipe connects gas to a muffler body. The inlet pipe is flared at its connection to the muffler body to direct flow of the gas through an inlet chamber of the muffler in a spiral path. In an example embodiment, the muffler body includes three chambers separated by panels. An inlet expansion chamber is adjacent to the inlet and includes a first pipe with a perforated portion. An intermediate expansion chamber adjacent to the inlet chamber receives the gas from the first pipe. Four small pipes at the exit end of the intermediate chamber extend into an outlet expansion chamber. The gas in the outlet expansion chamber exits the muffler body by an outlet pipe at the other end of the outlet expansion chamber. The muffler achieves a high sound reduction without increasing backpressure.

摘要翻译： 例如用于内燃机的高性能消音器减少排气或其它气体噪声，同时保持低背压以防止发动机功率损失。 侧入口管将气体连接到消音器主体。 入口管在其与消声器主体的连接处被扩张，以引导气体以螺旋路径流过消音器的入口室。 在一个示例性实施例中，消音器主体包括被面板隔开的三个室。 入口膨胀室邻近入口并且包括具有穿孔部分的第一管。 邻近入口室的中间膨胀室接收来自第一管的气体。 在中间室的出口端处的四个小管延伸到出口膨胀室。 出口膨胀室中的气体通过出口膨胀室另一端的出口管离开消声器本体。 消音器在不增加背压的情况下实现高音效降低。

公开(公告)号：US20040163886A1

公开(公告)日：2004-08-26

申请号：US10756440

申请日：2004-01-13

发明人： Anthony J. Sutera ,  Bryan Reuel Hunsaker

IPC分类号： F01N001/02 ,  F01N001/00 ,  F01N001/08

CPC分类号： F01N1/088 ,  F01N1/02 ,  F01N1/08 ,  F01N1/166 ,  F02D2009/0283 ,  F02M35/1216 ,  F02M35/1227 ,  F02M35/1233

摘要： An air turbine apparatus is suitable for use as the intake or exhaust of a combustion engine. A housing defines an expansion chamber that communicates with an inlet and outlet. A tube is disposed proximate to the inlet and includes a plurality of perforations to encourage air flow from the expansion chamber to an induction chamber within the tube.

摘要翻译： 一种空气涡轮机装置适用于内燃机的进气或排气。 壳体限定了与入口和出口连通的膨胀室。 管子靠近入口设置并且包括多个穿孔，以鼓励空气从膨胀室流到管内的感应室。

公开(公告)号：US20030152239A1

公开(公告)日：2003-08-14

申请号：US10345414

申请日：2003-01-16

申请人： Filterwerk Mann & Hummel GmbH

发明人： Andreas Graefenstein

IPC分类号： H04R025/00 ,  F01N001/02 ,  H04R001/02 ,  A61F011/06 ,  G10K011/16 ,  H03B029/00 ,  H04R001/20

CPC分类号： G10K11/178 ,  G10K2210/1082 ,  G10K2210/112 ,  G10K2210/3227

摘要： A resonator for noise damping in a sound-conducting tubular channel (2) is provided with an actively controllable sound generator (4) which is arranged in a resonator chamber (12) to generate interference noise (16) to be superimposed on the tubular channel noise. The resonator chamber (12) is connected via a sound-transmitting opening in a tube wall (3) of the tubular channel (2) to the inside of the tubular channel. A measurement signal from a sound sensor (8) arranged in the tubular channel (2), containing information about the sound spectrum in the channel, is connected amplified, to the sound generator (4) with the same frequency and with inverse phase position. To amplify the active suppression of the sound level by the resonator with a resonator of the smallest possible overall size, the sound-transmitting opening in the tube wall is constructed as a peripheral annular gap in the tube wall.

摘要翻译： 在导电管状通道（2）中用于噪声阻尼的谐振器设置有主动可控的声音发生器（4），其布置在谐振器室（12）中以产生要叠加在管状通道上的干扰噪声（16） 噪声。 谐振器室（12）通过管状通道（2）的管壁（3）中的传声开口连接到管状通道的内部。 来自布置在管状通道（2）中的声音传感器（8）的测量信号，其包含关于通道中的声谱的信息，以相同的频率和相位位置被连接放大到声音发生器（4）。 为了通过具有尽可能小的整体尺寸的谐振器的谐振器来放大对声级的主动抑制，管壁中的声音传输开口被构造为管壁中的周边环形间隙。

公开(公告)号：US20020189897A1

公开(公告)日：2002-12-19

申请号：US09875144

申请日：2001-06-07

申请人： PEUGEOT CITROEN AUTOMOBILES SA

发明人： Eric Trochon

IPC分类号： F01N001/02

CPC分类号： F16L55/033 ,  G10K11/172 ,  G10K11/175

摘要： The device for attenuation of noise in a tube intended to transport a gas includes a branch tube having two ends which open into said tube by two connections, and at least one tube referred to as quarter wave tube having a closed end referred to as the free end and another end which is connected to said tube at the level of the connections of the branch tube, thus forming three sections of circulation of gas entering into said tube. The invention can be applied in the field of motor vehicles.

摘要翻译： 用于衰减用于输送气体的管中的噪声的装置包括具有两端的分支管，其两端通过两个连接而进入所述管，并且至少一个称为四分之一波管的管被称为自由 端部和另一端，其在分支管的连接水平处连接到所述管，从而形成进入所述管的气体的三个循环部分。 本发明可应用于机动车辆领域。