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公开(公告)号：US11814994B2
公开(公告)日：2023-11-14
申请号：US17274464
申请日：2019-09-09
Inventor： Marco Baur
CPC classification number: F01N1/082 , F01N13/08 , F01N13/185 , F01N13/1811 , F01N13/1872 , F01N2470/04
Abstract: A component of an exhaust system for an internal combustion engine comprises a wall in which at least one opening is provided. A perforated cover at least partly closes the at least one opening. The perforated cover is mounted on the wall using a holder, and a portion of the perforated cover engages into an opening provided on the holder. There is also presented an exhaust system comprising such a component, and a method for manufacturing such a component, in which the perforated cover is mounted on the holder by introducing at least one portion of the perforated cover into an opening provided on the holder.
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公开(公告)号：US20170145882A1
公开(公告)日：2017-05-25
申请号：US15427892
申请日：2017-02-08
Applicant: K&N Engineering, Inc.
Inventor： Steve Williams , Kevin McClelland
CPC classification number: F01N1/023 , F01N1/02 , F01N1/06 , F01N1/082 , F01N1/163 , F01N2560/06 , G10K11/04 , G10K11/161
Abstract: An apparatus and method are provided for a drone elimination muffler to attenuate drone exhibited by engine exhaust systems. The drone elimination muffler comprises a hollow canister having a length and a diameter, and a tuned port comprising a first end connected to the canister and a second end connected to the exhaust system. The canister operates in concert with the tuned port as a dampener configured to substantially attenuate exhaust drone, or resonance, at one or more frequencies of engine operation. A valve is configured to switch the drone elimination muffler between a closed state in which the exhaust system operates without acoustic influence due to the drone elimination muffler, and an open state in which the drone elimination muffler directly influences the acoustic properties of the exhaust system.
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公开(公告)号：US08881863B2
公开(公告)日：2014-11-11
申请号：US13939562
申请日：2013-07-11
Inventor： Kwin Abram , Dennis Boennen
IPC: F01N1/00
CPC classification number: F01N1/24 , F01N1/082 , F01N13/082 , F01N2470/04
Abstract: An exhaust gas carrying of an exhaust gas system of a combustion engine fulfills a sound-absorbing function and has an outer shell that comprises at least one sound-absorbing portion. The sound-absorbing portion is provided with micro perforations which have a sound-absorbing effect and through which exhaust gas is directly discharged to an external environment.
Abstract translation: 内燃机的排气系统的废气具有吸声功能，并具有包含至少一个吸声部的外壳。 吸声部设有具有吸音效果的微孔，废气直接排放到外部环境。
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公开(公告)号：US08051948B2
公开(公告)日：2011-11-08
申请号：US12973263
申请日：2010-12-20
Applicant: Robert E. Geyer, III
Inventor： Robert E. Geyer, III
IPC: F01N13/18
CPC classification number: F01N1/082 , F01N1/10 , F01N2230/02
Abstract: A silencer apparatus for attenuating noise in gas flow systems. The apparatus generally includes a housing having an interior cavity and a gas flow inlet and outlet that are adapted to be connected to a passage such that a gas flowing through the passage enters and exits the cavity of the housing through the inlet and outlet, respectively. A silencer cartridge unit is removably disposed within the interior cavity of the housing and defines a gas flow path fluidically connected to the inlet and outlet of the housing. The silencer cartridge unit has at least one sound-attenuating element that surrounds the gas flow path. The housing is further equipped with a closure that sealingly closes a portion of the housing, and is releasable from the housing to provide an access opening through which the silencer cartridge unit can be removed. The apparatus can also be adapted to include a filtration medium.
Abstract translation: 一种用于衰减气流系统噪声的消音装置。 该装置通常包括具有内腔和气流入口和出口的壳体，其适于连接到通道，使得流过通道的气体分别通过入口和出口进入和离开壳体的空腔。 消音器筒单元可移除地设置在壳体的内部空腔内，并且限定了流体连接到壳体的入口和出口的气体流路。 消音器筒单元具有围绕气体流路的至少一个声音衰减元件。 壳体还装备有封闭件，其密封地封闭壳体的一部分，并且可从壳体释放以提供进入开口，消音器筒单元可以通过该开口移除。 该装置还可以适于包括过滤介质。
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公开(公告)号：US08047327B2
公开(公告)日：2011-11-01
申请号：US12811633
申请日：2008-12-31
Applicant: Georges Audeval
Inventor： Georges Audeval
CPC classification number: B25F5/00 , F01N1/082 , F01N1/083 , Y10S173/02
Abstract: A muffler for mounting to a handheld pneumatic tool, such as a die grinder. The muffler comprises a hollow open-ended casing having an inner wall lined with a thick layer of an insulating material. The muffler is sleeve mounted about a coupler positioned between an exhaust end of the pneumatic tool and an air adapter supplying compressed air to the pneumatic tool for operation thereof. A plate comprising a plurality of perforations is positioned at a first face of the casing adjacent the air adapter. A biasing member is further placed between the plate and the air adapter for biasing a second face of the casing against the exhaust end. In this manner, during operation of the pneumatic tool, released air expelled at the exhaust end is directed through the casing to reduce a level of the noise at the exhaust end.
Abstract translation: 用于安装到手持气动工具的消声器，例如模具研磨机。 消声器包括一个中空的开口式外壳，其具有一个衬有绝缘材料的厚层的内壁。 消声器围绕位于气动工具的排气端处的联接器和与气动工具供应压缩空气的空气适配器之间的套筒安装以进行操作。 包括多个穿孔的板被定位在与空气适配器相邻的壳体的第一面处。 偏置构件进一步放置在板和空气适配器之间，用于使壳体的第二面抵靠排气端。 以这种方式，在气动工具的操作期间，在排气端排出的释放空气被引导通过壳体以减小排气端处的噪声水平。
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Patent Agency Ranking
6.发明申请Sound adjustable device for coupling to an engine and method for manufacturing thereof 审中-公开用于联接发动机的声音调节装置及其制造方法公开(公告)号：US20070246292A1
公开(公告)日：2007-10-25
申请号：US11728670
申请日：2007-03-27
Applicant: Gary Sichau
Inventor： Gary Sichau
IPC: F01N7/18
Abstract: A sound adjustable device that varies exhaust-noise having a casing including a sound-dampening material that dampens exhaust-noise, an outer slotted pipe inside the casing, an inner slotted pipe inside the outer slotted pipe, and wherein at least one of the outer and inner slotted pipes is movable with respect to the other to alternately align the slots of the respective slotted pipes for a quieter exhaust-noise and to misalign the slots of the respective slotted pipes for a louder exhaust-noise. The sound adjustable device may also include a heat-shielding material inserted between the casing and the sound-dampening material to shield the casing from heat emitted by the exhaust, and a heat-resistant material may be included in the inner and outer slotted pipes.
Abstract translation: 一种声音调节装置，其具有改变排气噪声的装置，该装置具有壳体，该外壳包括抑制排气噪声的减震材料，壳体内部的外部开槽管，外部开槽管内部的内部开槽管，并且其中至少一个外部 并且内部开槽的管道可相对于另一个可移动，以交替地对准相应的开槽管道的槽口以获得更安静的排气噪声，并且使相应的开槽管道的槽不对准以获得更大的排气噪声。 声音调节装置还可以包括插入在外壳和隔音材料之间的隔热材料，以将外壳屏蔽到由排气发射的热量中，并且耐热材料可以包括在内部和外部开槽管中。
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公开(公告)号：US20050011697A1
公开(公告)日：2005-01-20
申请号：US10623960
申请日：2003-07-17
Applicant: David Arlasky
Inventor： David Arlasky
CPC classification number: F01N1/18 , F01N1/082 , F01N1/10 , F01N2310/02 , F01N2310/04
Abstract: The present invention provides a muffler comprising a rotatable propeller within or adjacent to an expansion chamber to swirl exhaust gas towards the outlet. The muffler maintains the sound level of the exhaust within acceptable limits, while delivering improved power and/or fuel efficiency over that of standard mufflers.
Abstract translation: 本发明提供了一种消声器，其包括在膨胀室内或邻近膨胀室的可旋转螺旋桨，以将废气朝向出口旋转。 消音器将废气的声级保持在可接受的限度内，同时提供比标准消音器更好的功率和/或燃料效率。
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公开(公告)号：US20040231912A1
公开(公告)日：2004-11-25
申请号：US10442326
申请日：2003-05-21
Applicant: Mahle Tennex Industries, Inc.
Inventor： Ichiro Fukumoto
IPC: F01N001/02
CPC classification number: F02M35/14 , F01N1/02 , F01N1/082 , F01N2210/04 , F01N2490/14 , F02M35/1216 , F02M35/1255 , F02M35/1272
Abstract: An intake combustion resonator including an enclosure which includes a resonator tube assembly passing through the enclosure. The resonator tube is formed from porous, undulated tube material and has openings formed in the tube walls. The openings serve as nulltunednull passages through the porous tube walls. The resonator tube assembly is not centrally located within the enclosure but rather it is offset both in a height and a width orientation. The size, spacing, and orientation of the tube openings, porous, undulated sleeve material, the design of the enclosure, and the placement of the tube within the enclosure, all act in concert to give rise to the noise abatement properties of the present invention.
Abstract translation: 一种进气燃烧谐振器，包括一个包括通过外壳的谐振管组件的外壳。 谐振器管由多孔的起伏管材料形成，并且在管壁中形成开口。 这些开口用作通过多孔管壁的“调谐”通道。 谐振器管组件不位于壳体的中心位置，而是在高度和宽度方向上偏移。 管开口的尺寸，间距和取向，多孔，凹凸的套筒材料，外壳的设计以及管在外壳内的放置均一致地产生本发明的消除噪声的性质 。
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公开(公告)号：US5767459A
公开(公告)日：1998-06-16
申请号：US959745
申请日：1997-10-28
Applicant: Leslie J. Sell
Inventor： Leslie J. Sell
CPC classification number: F01N13/16 , F01N1/082 , F01N2310/10 , F01N2450/24
Abstract: A muffler utilizing a stackable porous disk sandwiched between a threaded mounting plate and an end cap and utilizing tie rods to assemble the stack is provided.
Abstract translation: 提供一种消音器，其利用夹在螺纹安装板和端盖之间的可堆叠多孔盘并且利用拉杆来组装所述堆叠。
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公开(公告)号：US5703338A
公开(公告)日：1997-12-30
申请号：US491843
申请日：1995-10-10
Applicant: Hermann Liese
Inventor： Hermann Liese
CPC classification number: F02K1/827 , F01N1/082 , F01N1/083 , Y02T50/671
Abstract: A sound absorber for jet engines and the like including a housing defining an inflow opening and an outflow opening. Sound absorbing elements positioned within the housing define substantially parallel entrance and exit planes. The sound absorbing elements include a plurality of gas guidance and baffle elements in two spaced-apart and parallel row-like arrangements, the elements having U-shaped, V-shaped, or semicircular cross-sections. The rows of sound absorbing elements are offset and the elements arranged such that the opened cross-sectional areas face each other in overlapping fashion. The entrance plane and the exit plane are inclined relative to an entrance flow through the inflow opening within an angular range of between 0.degree. to less than 90.degree.. The flow into the sound absorber is divided into first partial flows between adjacent sound absorbing elements, whereupon each first partial flow splits into two second partial flows each of which merge with an adjacent second partial flow to form common a third partial flow directed toward the exit plane.
Abstract translation: PCT No.PCT / EP94 / 03474 371 1995年10月10日第 102（e）日期1995年10月10日PCT 1994年10月21日PCT PCT。 WO95 / 11372 PCT出版物 日期1995年04月27日用于喷气发动机等的吸声器包括限定流入开口和流出开口的壳体。 定位在壳体内的吸音元件限定基本平行的入口和出射平面。 吸声元件包括两个间隔开且平行的行状布置的多个气体引导和挡板元件，这些元件具有U形，V形或半圆形横截面。 吸声元件排是偏移的，并且这些元件被布置成使开放的横截面区域以重叠的方式彼此面对。 入口面和出口平面相对于流入口的入口流在0度至小于90度的角度范围内倾斜。 进入吸声器的流量被分成相邻吸音元件之间的第一部分流，因此每个第一部分流分成两个第二部分流，每个第二部分流与相邻的第二部分流合并形成共同的朝向出口的第三部分流 飞机
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