公开(公告)号：US20040182643A1

公开(公告)日：2004-09-23

申请号：US10783666

申请日：2004-02-20

Inventor： Youhei Toyoshima

IPC: F01N001/08 ,  F01N001/00

CPC classification number: F01N1/08 ,  F01N1/003 ,  F01N1/06 ,  F01N2210/00 ,  F01N2260/16 ,  F01N2270/06 ,  F01N2470/04 ,  F01N2490/08

Abstract: A muffler is capable of sufficiently reducing flow noise, discharge noise, vehicle noise, and cabin noise, preventing a pressure loss, and improving output power. The muffler has a muffler body, an upstream pipe that opens in the muffler body, and a downstream pipe that opens in the muffler body. An opening is formed in a side wall of the downstream pipe in the muffler body. The opening consists of many small holes arranged in an elongated area extending in an axial direction of the downstream pipe.

Abstract translation: 消声器能够充分降低流量噪音，放电噪音，车辆噪音和车厢噪音，防止压力损失，提高输出功率。 消声器具有消声器本体，在消声器主体中开口的上游管，以及在消音器主体中开口的下游管。 在消声器主体中的下游管的侧壁上形成开口。 该开口由沿着下游管的轴向延伸的细长区域配置的许多小孔构成。

公开(公告)号：US06742332B2

公开(公告)日：2004-06-01

申请号：US10206398

申请日：2002-07-26

Applicant: David L. Piekarski

Inventor： David L. Piekarski

IPC: F01N710

CPC classification number: F01N13/08 ,  F01N1/08 ,  F01N1/14 ,  F01N13/082 ,  F01N13/10 ,  F01N13/18 ,  F01N2260/06 ,  F01N2260/14 ,  F01N2450/22 ,  F01N2450/24 ,  F01N2470/02 ,  F01N2470/10 ,  F01N2490/16 ,  F01N2530/04 ,  F02B27/04 ,  F02B27/06 ,  Y02T10/146

Abstract: The present invention is an exhaust system having a parallelogram-shaped cross section. The exhaust system includes a header flange for connection to one or more cylinder exhaust ports. The header flange is coupled to one or more conduits. The conduits merge into a collector, which may or may not include a muffler.

Abstract translation: 本发明是具有平行四边形横截面的排气系统。 排气系统包括用于连接到一个或多个气缸排气口的集管凸缘。 集管法兰连接到一个或多个管道。 管道合并成收集器，其可以包括或可以不包括消音器。

公开(公告)号：US20040084240A1

公开(公告)日：2004-05-06

申请号：US10690360

申请日：2003-10-21

Inventor： Sydney Gearing

IPC: B60K013/04

CPC classification number: F01N13/1805 ,  B60K13/04 ,  F01N1/00 ,  F01N1/06 ,  F01N1/08 ,  F01N1/24 ,  F01N13/08 ,  F01N13/082 ,  F01N2450/10 ,  F01N2450/24 ,  F01N2450/28 ,  F01N2450/40 ,  F01N2470/14 ,  F01N2530/00 ,  F01N2590/04

Abstract: An exhaust system sound-reducing component for use with a silencer on an off-road vehicle. The component includes an adapter, an exhaust extension and a U-joint that connects the adapter with the extension. The adapter includes an exhaust port that communicates with the atmosphere and a discharge opening that communicates with the exhaust extension. One portion of the exhaust and sound from the silencer is transmitted the exhaust port while another portion is transmitted through the discharge opening in the adaptor, through the exhaust passage, the U-joint and the exhaust extension and out to the atmosphere. As such, any sound traveling with the exhaust exiting the exhaust port of the chamber will be out of phase with any sound exiting the exhaust opening. This out of phase action of the sound results in reduced noise levels.

Abstract translation: 一种与越野车辆上的消音器一起使用的排气系统减声部件。 该组件包括一个适配器，一个排气延伸件和一个U形接头，用于将适配器与扩展连接。 适配器包括与大气连通的排气口和与排气延伸部连通的排出口。 来自消声器的排气和声音的一部分被传送到排气口，而另一部分通过排气通道，U形接头和排气延伸部分传递通过适配器中的排放口，并流出大气。 这样，随着离开室的排气口的排气行进的任何声音将与离开排气口的任何声音异相。 这种声音的异相动作导致噪音水平的降低。

公开(公告)号：US20040060769A1

公开(公告)日：2004-04-01

申请号：US10259407

申请日：2002-09-30

Applicant: Marley Cooling Technologies, Inc.

Inventor： Gregory P. Hentschel ,  Robert E. Beltz ,  Jidong Yang ,  Eldon F. Mockry

IPC: F02K001/00 ,  F01N001/14 ,  F02K001/28 ,  F02K001/38 ,  F02K001/46

CPC classification number: F28C1/10 ,  F01N1/08 ,  Y10S261/11

Abstract: A cooling tower sound attenuation apparatus having at least one sheet. The sheet has an upper and lower end and a first substantially straight region and a second region that is connected to the first substantially straight region. The apparatus additionally has a liquid collection basin along with a support structure that supports the sheet such that the lower end of the sheet is proximate to the liquid collection basin.

Abstract translation: 一种具有至少一个片材的冷却塔衰减装置。 片材具有上下端和第一基本上直的区域以及连接到第一基本上直的区域的第二区域。 该装置还具有液体收集池以及支撑结构，支撑片材使得片材的下端接近液体收集池。

公开(公告)号：US20040040293A1

公开(公告)日：2004-03-04

申请号：US10648325

申请日：2003-08-27

Inventor： Axel Klimmek ,  Tilmann Seidel

IPC: F02B027/02

CPC classification number: F01N13/002 ,  F01N1/02 ,  F01N1/08 ,  F01N2590/06 ,  F02B27/06 ,  F02B2075/025 ,  Y02T10/146

Abstract: An internal combustion engine, especially of a two-stroke engine in a portable handheld work apparatus, includes an outlet (27) for the exhaust gases which is fluidly connected with at least one inlet opening (13, 14) in an exhaust-gas muffler (1). At least one resonance pipe (6, 7) is mounted in flow direction between the outlet (27) from the engine (20) and the inlet opening (3, 5) into the exhaust-gas muffler (1) in order to obtain a good noise attenuating result and simultaneously make possible an advantageous, space-saving mounting of the engine (20).

Abstract translation: 特别是便携式手持式工作装置中的二冲程发动机的内燃机包括用于废气的出口（27），其与废气消声器中的至少一个入口开口（13,14）流体连接 （1）。 在来自发动机（20）的出口（27）和入口开口（3,5）之间的至少一个共振管（6,7）安装到排气消声器（1）中，以便获得 良好的噪声衰减结果，并且同时使发动机（20）的有利且节省空间的安装成为可能。

公开(公告)号：US20040026165A1

公开(公告)日：2004-02-12

申请号：US10440310

申请日：2003-05-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masanori Takahashi ,  Kouji Toyoshima ,  Takeshi Inoguchi ,  Shinya Hirota ,  Takamitsu Asanuma

IPC: F01N001/00 ,  F16K017/00

CPC classification number: F01N3/2885 ,  F01N1/02 ,  F01N1/08 ,  F01N1/163 ,  F01N1/166 ,  F01N3/031 ,  F01N3/033 ,  F01N3/0335 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0878 ,  F01N3/2053 ,  F01N3/2882 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N13/017 ,  F01N2230/00 ,  F01N2230/02 ,  F01N2230/04 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/06 ,  F01N2260/14 ,  F01N2410/10 ,  F01N2570/14

Abstract: A muffler comprises a casing and an exhaust pipe penetrating the casing. An exhaust gas chamber 4 is defined between the outer wall surface of the exhaust pipe and the inner wall surface of the casing. In the exhaust pipe positioned in the casing, an enlarged chamber for accommodating a particulate filter is formed. A downstream side portion of the exhaust pipe and the exhaust gas chamber are communicated with each other by a branch pipe. A communicating port is formed on the wall of an upstream side portion of the exhaust pipe positioned in the exhaust gas chamber. Until the pressure difference between the upstream and downstream of the communication control valve reaches a threshold value, the communication control valve is kept closed to close the communicating port and, thus, the exhaust gas flows through the particulate filter. When the pressure difference has reached the threshold value, the communication control valve is opened by the pressure in the upstream side portion to open the communicating port and, thus, a part of the exhaust gas bypasses the particulate filter.

Abstract translation: 消声器包括壳体和穿过壳体的排气管。 在排气管的外壁表面和壳体的内壁表面之间限定排气室4。 在位于壳体内的排气管中，形成容纳微粒过滤器的扩大室。 排气管和废气室的下游侧部分通过支管连通。 在位于排气室的排气管的上游侧部分的壁上形成连通口。 在通信控制阀的上游和下游之间的压差达到阈值之前，通信控制阀保持关闭以关闭连通端口，因此废气流过微粒过滤器。 当压差达到阈值时，通过上游侧部分的压力来打开连通控制阀以打开连通口，从而一部分排气绕过微粒过滤器。

公开(公告)号：US06622821B2

公开(公告)日：2003-09-23

申请号：US09943819

申请日：2001-08-31

Applicant: Boyd L. Butler

Inventor： Boyd L. Butler

IPC: F01N108

CPC classification number: F01N1/14 ,  F01N1/08 ,  F01N1/083 ,  F01N1/086 ,  F01N1/12 ,  F01N2260/18 ,  F01N2470/10 ,  F01N2470/14 ,  F01N2470/16 ,  F01N2470/30

Abstract: A flattened acoustic muffler for use on stock cars. The muffler mounts to the standard exhaust system pipes and to the lower chassis of the car, routing exhaust gasses to one or both sides of the car while providing improved ground clearance between the exhaust pipe and the surface of the race track. The muffler contains a plurality of spiral acoustic traps, which attenuate exhaust noise while producing little additional backpressure.

Abstract translation: 用于股票车辆的扁平声消声器。 消声器安装到标准排气系统管道和汽车的下部底盘上，将废气排放到汽车的一侧或两侧，同时在排气管和跑道表面之间提供改进的离地间隙。 消音器包含多个螺旋式声学收集器，其减少排气噪声，同时产生几乎没有额外的背压。

公开(公告)号：US20030173148A1

公开(公告)日：2003-09-18

申请号：US10258037

申请日：2002-12-26

Inventor： Lars Andersson ,  Mikael Bergman ,  Hans Strom

IPC: F01N001/08

CPC classification number: F01N13/002 ,  F01N1/08 ,  F01N1/089 ,  F01N1/16 ,  F01N3/2885 ,  F01N13/082 ,  F01N2240/20 ,  F01N2470/14 ,  F01N2470/16 ,  F01N2490/08 ,  F01N2590/06 ,  F02B63/02 ,  F02B2075/025

Abstract: A muffler (1) intended for portable working tools, preferably chain saws, in which the muffler is mounted directly to the exhaust gas outlet (3) of the cylinder (2). The muffler is provided with at least one upstream partition wall (4, 5) at the muffler's inlet (6) from the cylinder and arranged essentially laterally in relation to the engine's cylinder bore (7), so that the partition wall (4) separates an upper fraction (8) above it, i.e. in the direction towards the upper side of the cylinder, and a lower fraction below it, i.e. in the opposite direction, and this dividing into two or several fractions (8, 9, 10) is kept maintained through a great deal of the muffler from the inlet to a number of outlets (11, 12, 13).

Abstract translation: 消声器（1），用于便携式工作工具，优选链锯，消声器直接安装在气缸（2）的排气出口（3）上。 所述消音器在所述消音器的入口（6）处设置有至少一个与所述汽缸相连的上游分隔壁（4,5），并且相对于所述发动机的气缸孔（7）基本上横向设置，使得所述隔壁（4）分离 在其上方的上部分（8），即在朝向气缸的上侧的方向上，在其下方的较低部分，即相反方向，并且分为两个或几个分数（8,9,10） 通过大量消声器从入口到多个出口（11,12,13）保持。

公开(公告)号：US20030145585A1

公开(公告)日：2003-08-07

申请号：US10359913

申请日：2003-02-06

Inventor： Gregory Allen Uhler ,  Kenneth Cook ,  Mehmet S. Ciray

IPC: F02B027/02

CPC classification number: F01N1/165 ,  F01N1/02 ,  F01N1/06 ,  F01N1/08 ,  F01N1/16 ,  F02B27/06 ,  Y02T10/146

Abstract: An exhaust processor has an exhaust tube and a cover mounted for rotation at least partially around the exhaust tube to adjust the tuning frequency of the exhaust processor. A method of operating the exhaust processor is also disclosed.

Abstract translation: 排气处理器具有排气管和盖，其安装成用于至少部分地围绕排气管旋转以调节排气处理器的调谐频率。 还公开了一种操作排气处理器的方法。

公开(公告)号：US20030079467A1

公开(公告)日：2003-05-01

申请号：US10083952

申请日：2002-02-27

Inventor： Z. Gerald Liu ,  Michael T. Zuroski ,  Cary D. Bremigan ,  Kenneth J. Kicinski ,  C. Raymond Cheng

IPC: F01N003/00

CPC classification number: F01N3/08 ,  B01D53/9431 ,  B01D53/944 ,  B01D2257/404 ,  B01D2258/01 ,  B01D2259/124 ,  B01D2259/126 ,  B01F3/04049 ,  B01F5/0451 ,  B01F5/0616 ,  B01F5/0682 ,  B01F5/0688 ,  B01F5/0689 ,  B01F2005/0091 ,  B01F2005/0637 ,  F01N1/08 ,  F01N3/0253 ,  F01N3/029 ,  F01N3/2066 ,  F01N3/2892 ,  F01N3/36 ,  F01N2240/20 ,  F01N2470/24 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/10 ,  F01N2610/102 ,  F01N2610/1453 ,  Y02T10/24

Abstract: An exhaust aftertreatment device (10) includes an aftertreatment element (24) for treating internal combustion engine exhaust, an injector (26) for injecting chemical species mixing with the exhaust prior to reaching the aftertreatment element, and a turbulator (36) turbulating the exhaust to enhance the noted mixing. In a desired combination, a two-stage integrated perforated tube combination structure includes a turbulent mixing tube (38) disposed in an acoustic tube (40) and concentrically surrounded thereby.

Abstract translation: 排气后处理装置（10）包括用于处理内燃机排气的后处理元件（24），用于在到达后处理元件之前喷射与废气混合的化学物质的喷射器（26），以及使排气 以增强所提及的混合。 在期望的组合中，两级整体穿孔管组合结构包括设置在声管（40）中并同心地包围的湍流混合管（38）。