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公开(公告)号：US4541240A
公开(公告)日：1985-09-17
申请号：US493930
申请日：1983-05-12
申请人： John H. Munro
发明人： John H. Munro
IPC分类号： F01N1/10 , F01N3/00 , F01N3/021 , F01N3/033 , F01N3/06 , F01N3/08 , F01N3/28 , F01N13/02 , F01N3/02 , F01N1/24 , F01N3/20
CPC分类号： F01N3/2882 , F01N1/10 , F01N13/0097 , F01N3/005 , F01N3/0211 , F01N3/0335 , F01N3/06 , F01N3/0814 , F01N3/2885 , F01N2230/02 , F01N2230/04 , F01N2240/18 , F01N2250/12 , F01N2310/02 , F01N2310/14 , F01N2330/08 , F01N2330/10 , F01N2450/30 , Y10S55/30
摘要： The present invention provides an exhaust system comprising an elongated hollow casing having an upstream muffler chamber containing an insulated removable cartridge for sound absorbing and sound collecting, an intermediate chamber containing a removable spark and moisture arrester and a downstream chamber having a removable and replaceable cartridge containing exhaust gas purifying material. In one embodiment the cartridge provides dual chambers, one for absorbing and absorbing exhaust gas pollutants and the other for catalytic conversion of the same or different exhaust gases. The purifying cartridge is constructed of a foraminous material such as heat and corrosion resistant wire mesh or screen. Similarly, the muffler cartridge is an elongated hollow shell formed of a foraminous heat and corrosion resistant material such as wire mesh or screen. The annular space around the muffler cartridge is preferably filled with a heat-resistant, sound-absorbing, gas previous material. The purifier chamber is provided with guide vanes to direct the exhaust gases over the purifier material and through and out of the purifying chamber. In another embodiment the muffler cartridge is provided with a plurality of sound attenuating chambers.
摘要翻译： 本发明提供了一种排气系统，其包括一个细长的中空壳体，该中空壳体具有上游消音器腔室，该上游消音器腔室包含用于吸声和声音收集的绝缘可移除盒，一个包含可移除的火花和吸湿器的中间室，以及一个具有可移除和可更换的盒 废气净化材料。 在一个实施例中，筒提供双室，一个用于吸收和吸收废气污染物，另一个用于相同或不同废气的催化转化。 净化筒由多孔材料构成，如耐热和耐腐蚀的丝网或筛网。 类似地，消音器筒是由多孔耐热和耐腐蚀材料（例如丝网或筛网）形成的细长中空壳。 消声筒周围的环形空间优选地填充有耐热，吸音的气体以前的材料。 净化器室设置有引导叶片以引导废气在净化器材料上并通过和离开净化室。 在另一个实施例中，消声器筒设置有多个声音衰减室。
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公开(公告)号：US4533015A
公开(公告)日：1985-08-06
申请号：US582714
申请日：1984-02-23
申请人： Hisao Kojima
发明人： Hisao Kojima
摘要： An element of a sound arresting device has a cylinder and a blade integrally formed in the cylinder and helically twisted along the longitudinal direction of the cylinder. A plurality of elements are coupled to each other along their longitudinal direction and are fitted in a pipe. The ends of the two adjacent blades are perpendicular to each other. The pipe is covered with a sound insulating material. The elements and the pipe are made of a porous metal material, a porous plastic material or a porous ceramic material. When the sound arresting device is used as an automobile muffler, acoustic waves propagating in the gas are repeatedly mixed, interfere with each other and are absorbed by the apertures and the sound insulating material, thereby decreasing noise from the engine. Dust in the exhaust gas is captured by the apertures of the elements and the pipe, and is removed from the exhaust gas.
摘要翻译： 隔音装置的元件具有一体地形成在气缸中的气缸和叶片，并沿着气缸的纵向方向螺旋扭曲。 多个元件沿着它们的纵向彼此联接并且被配合在管中。 两个相邻叶片的端部彼此垂直。 管道覆盖有隔音材料。 元件和管道由多孔金属材料，多孔塑料材料或多孔陶瓷材料制成。 当声音拦截装置用作汽车消音器时，在气体中传播的声波被反复混合，彼此干涉并被孔和隔音材料吸收，从而降低了发动机的噪音。 排气中的灰尘被元件和管的孔捕获，并从废气中除去。
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公开(公告)号：US4513841A
公开(公告)日：1985-04-30
申请号：US541282
申请日：1983-10-12
申请人： Koji Shimoji , Suekiti Hangeisi , Keiji Itou
发明人： Koji Shimoji , Suekiti Hangeisi , Keiji Itou
CPC分类号： F01N13/1838 , F01N1/24 , F01N13/1844 , F01N2260/10 , F01N2310/02 , F01N2450/22 , F01N2470/02 , F01N2470/10 , F01N2470/24 , F01N2490/02
摘要： A muffler installed on an exhaust system of an internal combustion engine, which dissipates thermal stresses which arise from differing thermal expansions of the members comprising the muffler. The muffler comprises an outer cylinder, a pair of inner pipes, slidable into each other, penetrating into the outer cylinder and having a number of small holes therein, separators fixed to the outer cylinder by outer flanges provided with notches, and to the inner pipes by inner flanges, and the spaces defined by the inner pipes, separators and outer cylinder being filled with a sound absorbing material such as glass wool.
摘要翻译： 安装在内燃机的排气系统上的消音器，其消散由包括消声器的构件的不同热膨胀产生的热应力。 消声器包括外筒，一对内管，可彼此滑动，穿透到外筒中并具有多个小孔，分隔件通过设有凹口的外凸缘固定到外筒，并且内管 通过内部凸缘，以及由内管，隔板和外筒限定的空间填充有吸音材料如玻璃棉。
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公开(公告)号：US4467887A
公开(公告)日：1984-08-28
申请号：US326002
申请日：1981-11-30
申请人： David Vizard
发明人： David Vizard
摘要： An exhaust muffler comprises a closed chamber, an inlet pipe leading into the chamber, an outlet pipe leading from the chamber, two spaced bulkheads dividing the chamber into first and second buffer compartments separated by an intermediate compartment containing a glass fiber pack, three pass tubes extending through the bulkheads and across the intermediate compartment, two of the pass tubes forming continuations of the inlet and outlet pipes respectively and having flared open ends in the buffer compartments respectively, and a parabolic noise reflector located opposite the open end of said two pass tubes in such manner as to reflect down the pass tubes a proportion of the noise generated by gases flowing along the pass tubes.
摘要翻译： 排气消音器包括封闭室，通向室的入口管，从室引出的出口管，两个隔开的隔板，将室分隔成由包含玻璃纤维包的中间室隔开的第一和第二缓冲室，三通管 延伸穿过隔板并穿过中间隔室，两个通管分别形成入口管和出口管的连续部分，并且分别在缓冲隔间中具有开口端，以及与所述两个通管的开口端相对的抛物面噪声反射器 以这样的方式来反射通过管道沿着通过管流动的气体产生的噪声的一部分。
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公开(公告)号：US4336863A
公开(公告)日：1982-06-29
申请号：US280217
申请日：1981-07-06
申请人： Seigo Satomi
发明人： Seigo Satomi
摘要： The invention relates to an improvement of a silencer arranged in a gas flow passage of a gas supply or exhaust system and includes a sound absorbing material lined on wall surfaces of the gas flow passage in a duct casing. According to the invention, the sound absorbing material is covered with guard plates, each provided with a number of sound absorbing apertures and oblique plates located at edges of the apertures, for preventing gas flow from entering the sound absorbing material. The silencer according to the invention is capable of preventing accumulation of dust on the sound absorbing material and eliminating damage to the sound absorbing material due to entering of the gas flow thereinto. Thus, the silencer is particularly useful to diminish noise which is caused by gas flow when the gas contains a great amount of dust or when the gas flows at a high speed.
摘要翻译： 本发明涉及一种布置在气体供应或排气系统的气体流通道中的消音器的改进，并且包括排列在管道壳体中的气体流动通道的壁表面上的吸声材料。 根据本发明，吸音材料被保护板覆盖，每个保护板设置有多个吸音孔和位于孔的边缘处的倾斜板，用于防止气体流入吸声材料。 根据本发明的消音器能够防止灰尘对吸声材料的积聚，并且消除由于气流进入而导致的吸声材料的损坏。 因此，当气体含有大量的粉尘或当气体高速流动时，消音器特别有用于减少气体流动引起的噪音。
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公开(公告)号：US4330047A
公开(公告)日：1982-05-18
申请号：US182532
申请日：1980-08-29
申请人： Giacomo Ruspa , Luigi Franco
发明人： Giacomo Ruspa , Luigi Franco
CPC分类号： G10K11/172 , F24F13/08 , F24F13/24 , F24F2013/242 , F24F2013/245 , Y10S454/906
摘要： A sound-attenuating ventilation louver is provided for location in an aperture of a wall which separates a chamber containing a source of noise from the external environment, the purpose of the louver being to allow gaseous flows to pass into and out of the chamber while minimizing the noise passing out through the louver from the noise source. The louver includes a plurality of profiled slats each in the form of an aerodynamically-shaped blade. Each slat includes a solid portion made of a sound-absorbent material and a hollow portion defined by a thin wall of rigid material; in use of the louver the sound-absorbent solid portion of each slat is disposed towards the chamber containing the noise source while the hollow portion is disposed towards the external environment. The hollow portion of each slat is subdivided into a plurality of chambers communicating with the atmosphere through ports and acting as resonators.
摘要翻译： 提供了一种声音衰减的通气百叶窗，用于位于壁的孔中，该隔板将包含噪声源的室与外部环境分离，百叶窗的目的是允许气流进入和离开室，同时最小化 噪音从噪音源通过百叶窗。 百叶窗包括多个以空气动力学形状的叶片形式的成型板条。 每个板条包括由吸音材料制成的实心部分和由刚性材料的薄壁限定的中空部分; 在使用百叶窗时，每个板条的吸收吸收固体部分朝向包含噪声源的室设置，而中空部分朝向外部环境设置。 每个板条的中空部分被分成多个室，其通过端口与大气连通并用作谐振器。
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公开(公告)号：US4290501A
公开(公告)日：1981-09-22
申请号：US4929
申请日：1979-01-19
申请人： Ko Tanaka
发明人： Ko Tanaka
CPC分类号： F01N13/1838 , F01N1/084 , F01N1/10 , F01N2310/02 , F01N2450/22 , F01N2470/24
摘要： An exhaust silencer for use with small vehicles which use low speed engines and have minimal space available for the silencer while still requiring a long exhaust path to silence the low frequency engine pulsations. The silencer includes a silencer chamber with an axis, and an exhaust pipe with a U-shape, one arm of which extends axially into the chamber, and the other arm of which extends parallel to the axis outside of the chamber, both for a substantial part of the length of the chamber. At least the bight of the U-shaped pipe is double-walled to minimize the emission of pulsations from that portion of the exhaust pipe.
摘要翻译： 一种用于小型车辆的排气消音器，其使用低速发动机并且具有可用于消声器的最小空间，同时仍需要较长的排气路径来使低频发动机脉动静音。 消音器包括具有轴线的消声器室和具有U形的排气管，其一个臂轴向延伸到室中，另一个臂平行于腔室外侧的轴线延伸， 房间长度的一部分。 至少U形管的弯管是双壁的，以最小化从排气管的该部分的脉动的发射。
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公开(公告)号：US4184565A
公开(公告)日：1980-01-22
申请号：US969970
申请日：1978-12-15
申请人： Robert C. Price , V. C. Harris
发明人： Robert C. Price , V. C. Harris
CPC分类号： F01N1/10
摘要： An exhaust muffler which includes a tubular metallic core having at least one layer of fiberglass around the tubular core. The core has a plurality of circumferential slots formed therethrough with the slots arrayed in spirals around the core. Each slot extends in a transverse or circumferential direction on the core, and has a width to length ratio of about 1:3 to about 1:5. A pair of spaced baffle bars are extended diametrically across the core at spaced locations along its length, and are oriented at right angles to each other in respect to the direction of extension across the longitudinal axis of the core.
摘要翻译： 一种排气消声器，其包括管状金属芯，所述管状金属芯具有围绕所述管状芯的至少一层玻璃纤维。 芯具有穿过其中形成的多个周向槽，其中围绕芯的螺旋排列。 每个槽在芯上沿横向或圆周方向延伸，并且具有约1:3至约1:5的宽度与长度之比。 一对间隔开的挡板沿着其长度在间隔开的位置沿径向沿径向延伸，并且相对于芯的纵向轴线的延伸方向彼此成直角定向。
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公开(公告)号：US4162904A
公开(公告)日：1979-07-31
申请号：US895146
申请日：1978-04-10
申请人： Paul E. Clay , James K. Floyd
发明人： Paul E. Clay , James K. Floyd
CPC分类号： B01D50/00 , F01N1/10 , F01N3/037 , F01N3/038 , F01N2230/04 , F01N2310/00 , Y02T10/20
摘要： A silencer-separator having a cylindrical casing of circular cross section which is divided into an upper separator chamber and a lower expansion chamber. An inlet pipe directs a gas stream into the expansion chamber, and a pair of angularly disposed tubes direct the gas upward through a divider into the separator chamber with a swirling motion along the interior wall surface. A tubular central outlet extends through the upper end closure and has an entrance a substantial vertical distance therebelow. A peripheral baffle adjacent the interior wall collects entrained particles in the separator section and the collected particles are drained through a tube that may lead to the bottom of the expansion chamber. A perforated cylindrical body filled with a noise-attenuating fibrous substance is coaxially supported within the central outlet.
摘要翻译： 一种消音器分离器，其具有圆形截面的圆筒形壳体，其分为上分隔器室和下膨胀室。 入口管将气流引导到膨胀室中，并且一对有角度设置的管将气体向上引导通过分隔器沿着内壁表面旋转运动到分离器室中。 管状中心出口延伸穿过上端封闭件并具有在其下方相当大的垂直距离的入口。 邻近内壁的周边挡板收集分离器部分中夹带的颗粒，收集的颗粒通过可导致膨胀室底部的管排出。 填充有噪声衰减纤维物质的穿孔圆筒体同轴地支撑在中心出口内。
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公开(公告)号：US4149611A
公开(公告)日：1979-04-17
申请号：US810618
申请日：1977-06-27
申请人： Moriyuki Taguchi
发明人： Moriyuki Taguchi
摘要： An exhaust gas silencing system wherein standing waves are utilized in a silencing chamber to reduce low frequency components of noise, and a downstream muffler is utilized to reduce the high frequency components of noise. An expansion chamber can be utilized further to reduce the pressure of the sound waves.
摘要翻译： 一种废气消声系统，其中在消音室中使用驻波以减少噪声的低频分量，并且使用下游消声器来降低噪声的高频分量。 可以进一步利用膨胀室来减小声波的压力。
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