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公开(公告)号:US09909472B2
公开(公告)日:2018-03-06
申请号:US15160090
申请日:2016-05-20
发明人: Elise Nielsen , Pekka Saviharju
IPC分类号: F02B27/02 , F01N3/00 , F01N3/02 , F01N1/08 , F01N3/10 , F01N9/00 , F01N3/021 , F01N1/00 , F01N3/025 , F01N3/027 , F01N13/00 , F01N13/10
CPC分类号: F01N1/085 , F01N1/00 , F01N1/08 , F01N3/021 , F01N3/025 , F01N3/0253 , F01N3/027 , F01N3/103 , F01N9/00 , F01N13/009 , F01N13/10 , F01N2260/14 , F01N2260/16 , F01N2470/20 , F01N2470/24 , F01N2470/30 , F01N2490/18 , F01N2490/20 , F01N2610/03 , Y02T10/47
摘要: The present disclosure relates to an engine system comprising an ICE; an exhaust system; and an engine control unit for controlling operation of the engine system between at least a first operating state resulting in a first exhaust temperature range, and a second operating state resulting in a second, higher, exhaust temperature range. The exhaust system comprises a low frequency sound attenuation portion including a first tubing section having a first flow area; a second tubing section, having a second flow area smaller than the first flow area; and a third tubing section having a third flow area greater than the second flow area. The low frequency sound attenuation portion is dimensioned to achieve laminar flow through the third tubing section when the engine system is in the first operating state; and turbulent flow through the third tubing section when the engine system is in the second operating state.
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公开(公告)号:US20130230434A1
公开(公告)日:2013-09-05
申请号:US13409942
申请日:2012-03-01
申请人: Greg Scott Esmond
发明人: Greg Scott Esmond
IPC分类号: F01N3/28
CPC分类号: F01N3/2885 , F01N1/04 , F01N1/10 , F01N13/02 , F01N2470/20 , F01N2490/18
摘要: Exhaust apparatus for four cycle (including Wankel) internal combustion engines is disclosed. The apparatus is configured to manage pressure waves created by expanding gas emitted from the engine combustion chambers, the net result being to enhance engine performance and attenuate noise over a wide range of engine RPMs.
摘要翻译: 公开了四周循环(包括汪克尔)内燃机的排气装置。 该装置被配置为管理通过扩大从发动机燃烧室排出的气体产生的压力波,其最终结果是增强发动机性能并且在宽范围的发动机转速下衰减噪声。
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公开(公告)号:US08256569B1
公开(公告)日:2012-09-04
申请号:US13228756
申请日:2011-09-09
申请人: Dennis L. Huff , Ronald G. Huff
发明人: Dennis L. Huff , Ronald G. Huff
CPC分类号: F01N1/026 , F01N1/04 , F01N2310/14 , F01N2470/02 , F01N2490/18
摘要: A sound muffler combines a resonator chamber with a dissipative layer surrounding a through pipe. The muffler provides sound attenuation over a wide range of sound frequencies while maintaining unimpeded flow of gases through the pipe. This attenuation is achieved by combining dissipation with a frusto-conical resonant chamber. The dissipation is achieved by encircling the through passage with a layer of low density material such as metallic or ceramic foam or loosely packed fibers of a heat resistant material. The low density material attenuates the high frequency waves while permitting the passage of low frequency sound waves into the frusto-conical resonant chamber.
摘要翻译: 声音消音器将谐振器室与围绕通过管的耗散层相结合。 消音器在广泛的声音频率下提供声音衰减,同时保持气体通过管道的无阻碍的流动。 该衰减通过将耗散与截头圆锥形谐振室结合来实现。 通过用低密度材料层(例如金属或陶瓷泡沫)或松散堆积的耐热材料纤维环绕通道来实现耗散。 低密度材料使高频波衰减,同时允许低频声波进入截头圆锥形谐振腔。
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公开(公告)号:US20120085589A1
公开(公告)日:2012-04-12
申请号:US12956121
申请日:2010-11-30
申请人: Kichul PARK , Daegil Hwang
发明人: Kichul PARK , Daegil Hwang
CPC分类号: F01N1/24 , F01N1/04 , F01N1/089 , F01N13/082 , F01N13/16 , F01N2310/02 , F01N2470/14 , F01N2470/18 , F01N2470/20 , F01N2490/155 , F01N2490/18
摘要: A muffler for a vehicle includes a plurality of baffles fixed at a predetermined distance in a longitudinal direction of a muffler housing, an exhaust gas inflow pipe, an intermediate pipe, and a plurality of exhaust gas outflow pipes having an inlet thereof positioned in the same chamber defined by the adjacent pair of the baffles with the outlet of the intermediate pipe to considerably reduce exhaust noise, flow-induced noise, and booming noise of exhaust gas. The muffler is effectively protected from thermal damage of a vehicle by implementing a sound-absorbing heat-insulating material therein, and impresses consumers with dynamic, powerful, and polished image by making the exhaust gas outflow pipe in a dual type composed of first and second exhaust gas outflow pipes and disposing the outlet at the lower center of a rear bumper to be exposed to the outside, thereby considerably improving productivity of vehicles.
摘要翻译: 一种用于车辆的消音器包括:多个挡板,其在消声器壳体的长度方向上固定有预定的距离,排气流入管,中间管和多个排气流出管,其排气口位于同一位置 由相邻的隔板对与中间管的出口限定的腔室,以显着地减少废气的排气噪声,流动的噪声和繁忙的噪音。 通过在其中实施吸声隔热材料,消声器被有效地保护免受车辆的热损伤,并且通过使废气流出管成为由第一和第二构成的双重类型而使动态,强力和抛光的图像向消费者印象 废气流出管,并将出口设置在后保险杠的下部中央以暴露于外部,从而显着提高车辆的生产率。
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公开(公告)号:US20050103003A1
公开(公告)日:2005-05-19
申请号:US11017132
申请日:2004-12-20
申请人: Peter Crombeen
发明人: Peter Crombeen
CPC分类号: F01N3/303 , F01N1/089 , F01N3/05 , F01N3/32 , F01N3/34 , F01N13/14 , F01N2240/02 , F01N2240/20 , F01N2260/022 , F01N2450/22 , F01N2450/24 , F01N2450/30 , F01N2470/16 , F01N2470/18 , F01N2470/20 , F01N2470/30 , F01N2490/08 , F01N2490/16 , F01N2490/18 , F01N2530/02 , F01N2530/04 , F01N2530/26 , Y02T10/20
摘要: An exhaust gas muffler for an engine, the exhaust gas muffler having a body, at least one inlet for the exhaust gas from the engine on the body, a baffled chamber in the body to receive exhaust gas from the at least one exhaust gas inlet, at least one exhaust gas outlet from the baffled chamber to vent the exhaust gas from the baffled chamber, at least one fresh-air inlet on the body, a heat exchange conduit extending into the baffled chamber between the fresh air inlet and the at least one exhaust gas outlet, the heat exchange conduit being sized and shaped to permit heat exchange between the fresh air and the exhaust gas in the baffled chamber, and a fresh air outlet on the heat exchange conduit, the fresh air outlet being sized, shaped and located relative to the exhaust gas outlet to permit the fresh air to mix with exhaust gases being vented from the baffled chamber to lower an exit temperature of the exhaust gases.
摘要翻译: 一种用于发动机的废气消声器,具有主体的排气消声器,用于来自主体上的发动机的废气的至少一个入口,主体中的用于接收来自至少一个废气入口的废气的挡板室, 从所述挡板室排出至少一个废气,以排出来自所述挡板室的废气,所述主体上的至少一个新鲜空气入口,在所述新鲜空气入口和所述至少一个空气入口之间延伸到所述挡板室中的热交换管道 废气出口,热交换管道的尺寸和形状被设计成允许新鲜空气和挡板室中的废气之间的热交换,以及热交换管道上的新鲜空气出口,新鲜空气出口的尺寸,形状和位置 相对于废气出口,以允许新鲜空气与从挡板室排出的废气混合,以降低废气的出口温度。
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公开(公告)号:US4263981A
公开(公告)日:1981-04-28
申请号:US8006
申请日:1979-01-31
申请人: William R. Weiss , Lee E. Remy
发明人: William R. Weiss , Lee E. Remy
CPC分类号: F01N13/1844 , F01N1/02 , F01N1/10 , F01N2310/10 , F01N2450/28 , F01N2470/02 , F01N2470/24 , F01N2490/155 , F01N2490/18 , F01N2530/04 , F01N2530/06
摘要: A muffler for use in conjunction with a high intensity, low frequency noise-propagating open pipeline is disclosed. The muffler features an acoustically lined expansion chamber in tandem with a reasonator chamber. The length of the expansion chamber is approximately 25 percent of the wavelength to be attenuated. An exit tube, which passes through the resonator chamber to lead from the expansion chamber to the muffler outlet, is partially perforated with the perforations being restricted to at most the 50 percent of the exit tube closer to the muffler outlet. Audible noise which is emitted by the open pipeline is reduced by up to 30 dB and 11 .DELTA. dB(A) and brought to within acceptable levels.
摘要翻译: 公开了一种与高强度,低频噪声传播的开放式管道结合使用的消音器。 消声器具有与推理室一起的声学衬里的膨胀室。 膨胀室的长度约为要衰减的波长的25%。 穿过谐振器腔室以从膨胀室引导到消音器出口的出口管被部分穿孔,穿孔被限制在最靠近消声器出口的出口管的50%。 由开放式管道发出的声音噪声降低高达30 dB和11 DELTA dB(A),并达到可接受的水平。
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公开(公告)号:US3337939A
公开(公告)日:1967-08-29
申请号:US28491363
申请日:1963-06-03
发明人: PARKINSON ROBERT E
CPC分类号: F01N13/185 , B21D53/88 , F01N1/24 , F01N13/16 , F01N2450/20 , F01N2450/28 , F01N2490/18 , F01N2530/02 , Y10T29/49398
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公开(公告)号:US3220507A
公开(公告)日:1965-11-30
申请号:US33734964
申请日:1964-01-13
申请人: WALKER MFG CO
发明人: JETTINGHOFF PAUL F
CPC分类号: F01N13/1838 , F01N1/084 , F01N13/185 , F01N2260/18 , F01N2450/20 , F01N2450/22 , F01N2470/02 , F01N2470/10 , F01N2490/18 , Y10T29/49927
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公开(公告)号:US3195679A
公开(公告)日:1965-07-20
申请号:US8795361
申请日:1961-02-08
发明人: JOHN DUDA , UNO INGARD , ORAN FREDERIC M
CPC分类号: F01N13/1855 , B64F1/26 , F01N1/00 , F01N1/08 , F01N13/18 , F01N2450/22 , F01N2450/24 , F01N2470/02 , F01N2470/10 , F01N2490/16 , F01N2490/18
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公开(公告)号:US09133753B2
公开(公告)日:2015-09-15
申请号:US14387375
申请日:2013-03-27
申请人: TENNECO GMBH
CPC分类号: F01N13/001 , F01N1/003 , F01N1/24 , F01N2340/00 , F01N2470/02 , F01N2470/04 , F01N2470/20 , F01N2490/00 , F01N2490/18
摘要: A muffler for an exhaust system of an internal combustion engine having a housing wall, having a muffler housing with at least one inlet pipe guided through the housing wall and at least one outlet pipe guided through the housing wall, wherein the inlet pipe has at least one outflow opening via which the exhaust gas can flow from the inlet pipe into the outlet pipe, whereby, within the muffler housing, at least one coupling chamber with a chamber wall is provided with a center axis, which forms a flow channel between the inlet pipe and the outlet, whereby the chamber wall encloses the inlet pipe or the outlet pipe in the receiving direction E1 with respect to the center axis and is connected only indirectly via the inlet pipe and the outlet pipe or a muffler housing intermediate wall in a form- or material-fitting manner to the housing wall, whereby the chamber wall of the coupling chamber has a diameter D and whereby the exhaust pipe has an outer diameter d, whereby for the ratio of D/d, 20/10>−D/d>=11/10 or 18/10>=D/d>=11/10 is valid.
摘要翻译: 一种用于具有壳体壁的内燃机排气系统的消声器,具有壳体壁,所述消声器壳体具有引导通过所述壳体壁的至少一个入口管和至少一个引导通过所述壳体壁的出口管,其中所述入口管至少具有 一个流出开口,排气可以通过该流出口从入口管流入出口管,由此在消声器壳体内,具有室壁的至少一个联接室设置有中心轴线,该中心轴线在入口 管道和出口,由此室壁相对于中心轴线在接收方向E1上包围入口管或出口管,并且仅通过入口管和出口管或消声器壳体中间壁以形式间接地连接 - 或材料配合方式到壳体壁,由此联接室的室壁具有直径D,由此排气管具有外径d,由此,对于D的比例 / d,20/10> -D / d> = 11/10或18/10> = D / d> = 11/10有效。
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