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公开(公告)号：US4011922A
公开(公告)日：1977-03-15
申请号：US597030
申请日：1975-07-18
Applicant: Gary Dennis Goplen
Inventor： Gary Dennis Goplen
CPC classification number: F01N1/08 , F01N1/02 , F01N2490/155 , F02B1/04
Abstract: A muffler construction for an internal combustion engine. The muffler includes a housing having an inlet to receive exhaust gases from the engine and having an outlet for the discharge of gases. Located between the inlet and the outlet are a pair of baffles which are disposed in parallel spaced relation and the space between the baffles defines a central chamber. The upstream baffle is provided with a central opening, while the downstream baffle has a closed central portion aligned with the opening in the upstream baffle. Louvered openings are provided in the downstream baffle radially outward of the closed central portion. The exhaust gases pass through the opening in the upstream baffle, strike the closed central portion of the downstream baffle, are deflected outwardly in the central chamber, and then pass through the louvered openings to the outlet.
Abstract translation: 内燃机消声器结构。 消音器包括具有入口以容纳来自发动机的废气并具有用于排出气体的出口的壳体。 位于入口和出口之间的是一对挡板，它们以平行间隔的关系设置，挡板之间的空间限定了一个中心室。 上游挡板设置有中心开口，而下游挡板具有与上游挡板中的开口对准的封闭中心部分。 在封闭中心部分的径向向外的下游挡板中设置有开放的开口。 废气通过上游挡板中的开口，撞击下游挡板的封闭中心部分，在中心室中向外偏转，然后通过百叶窗通向出口。
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公开(公告)号：US4004649A
公开(公告)日：1977-01-25
申请号：US559234
申请日：1975-03-17
Applicant: Yukio Shimada
Inventor： Yukio Shimada
CPC classification number: F01N3/037 , F01N1/08 , F01N1/084 , F01N3/02 , F01N3/06 , F01N3/20 , F01N2230/04 , F01N2230/06 , F01N2470/04 , F01N2490/04 , F01N2490/06 , Y02T10/20
Abstract: An exhaust system comprises a catalytic converter placed in flow communication with the exhaust gases from an internal combustion engine and a muffler connected with the catalytic converter. The muffler includes a plurality of exhaust gas conduits arranged to form a continuous exhaust gas flow path via a plurality of expansion chambers, in which at least one of the exhaust conduits, except the first of them, has its exhaust gas inlet end closed and is formed with a group of apertures, or holes, which are disposed and sized, such that broken pieces of catalyst carried by the exhaust gases are prevented from entering the one exhaust gas conduit.
Abstract translation: 排气系统包括催化转化器，其与来自内燃机的废气和与催化转化器连接的消声器流动连通。 消声器包括多个废气导管，其布置成经由多个膨胀室形成连续的排气流动路径，其中除了第一个排气管道中的至少一个排气管道的排气入口端关闭，并且是 形成有一组孔或孔，其被设置和定尺寸，使得由排气携带的破碎的催化剂碎片被阻止进入一个废气导管。
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公开(公告)号：US3951171A
公开(公告)日：1976-04-20
申请号：US162784
申请日：1971-07-15
Applicant: Stephen J. Gibel
Inventor： Stephen J. Gibel
Abstract: Discharge pressure limiting and noise-suppressing nozzle for air-ejectors. An internal surface distributing air from an internal central pressure-reducing orifice to radially located multi-jet parts is dished in the direction of overall air flow through nozzle. Back-turbulence limits excessive line pressure to safe discharge pressure from nozzle.
Abstract translation: 排气压力限制和噪声抑制喷嘴。 从内部中央减压孔向径向定位的多喷射部分分配空气的内部表面在通过喷嘴的整个空气流动的方向上散布。 后湍流限制了管线压力过大，从喷嘴排出的安全排气压力。
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公开(公告)号：US3888332A
公开(公告)日：1975-06-10
申请号：US41040973
申请日：1973-10-29
Applicant: NORTON VILLIERS LTD
Inventor： ROE GEOFFREY ERNEST , FAVILL JOHN EDWARD
CPC classification number: F01N1/026 , F01N1/08 , F01N2490/155
Abstract: An exhaust silencer comprises a body which includes inner, intermediate and outer coaxial tubes. The outlet is formed as a slot and immediately upstream of the outlet in the direction of gas flow is a passage between the intermediate and outer tubes, the height of the passage being such as to attenuate the sound of the gas flowing through the passage. Between the inner and intermediate tubes is one or more resonator chambers and the exhaust gas flows through the inner tube and the passage in one direction and through the chambers in the opposite direction.
Abstract translation: 排气消音器包括一个主体，它包括内部，中间和外部同轴管。 出口形成为狭槽，并且在气流方向上的出口的紧邻上游处是中间管和外管之间的通道，通道的高度使得流过通道的气体的声音衰减。 在内管和中间管之间是一个或多个共振腔，废气在一个方向上流过内管和通道，并沿相反方向通过腔室。
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公开(公告)号：US3858678A
公开(公告)日：1975-01-07
申请号：US30477072
申请日：1972-11-08
Applicant: TENNECO INC
Inventor： HAREN RALPH J
IPC: F01N1/08
CPC classification number: F01N1/08
Abstract: A muffler has a gas flow path with inlet and outlet louver patches containing louvers that are directed circumferentially of the path but in opposite directions.
Abstract translation: 消声器具有气流通道，其中具有入口和出口百叶片，其包含沿路径周向但沿相反方向定向的百叶窗。
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Patent Agency Ranking
公开(公告)号：US3838749A
公开(公告)日：1974-10-01
申请号：US33257073
申请日：1973-02-15
Applicant: JOHNSON H
Inventor： JOHNSON H
CPC classification number: F01N13/1855 , F01N1/08 , F01N2450/24 , F01N2470/18 , F01N2490/08
Abstract: Flow of gas from a pulsating pressure source is conducted through a muffler device to remove undesirable sound frequencies, cool the gas and substantially prevent back pressure flow between pressure pulsations of the gas. The gas is conducted through a baffling zone in the muffler formed by baffle plates having crescent-shaped openings through which flow of the gas is limited. The openings render the baffle plates effective as acoustical wave filters and impart a spin to the gas conducted therethrough.
Abstract translation: 来自脉动压力源的气体的流动通过消声器装置进行，以消除不期望的声频，冷却气体并基本上防止气体的压力脉动之间的背压流动。 气体通过由具有新月形开口的挡板形成的消声器中的挡板区域传导，通过该开口限制气体的流动。 这些开口使得挡板成为有效的声波滤波器，并且对通过其传导的气体进行旋转。
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87.发明授权Apparatus for fluid flow precision pressure-reduction, and attenuation and diffusion of jet-produced sound without substantial sound-regeneration in jet-port arrays, including valves and the like 失效流体流动精度降低的装置，以及喷射式声音的衰减和扩散，在喷气口阵列，包括阀和类似物中没有重大的再生
公开(公告)号：US3802537A
公开(公告)日：1974-04-09
申请号：US22687172
申请日：1972-02-16
Applicant: BOLT BERANEK & NEWMAN
Inventor： WHITE P
CPC classification number: F01N1/165 , F01N1/08 , Y10T137/86734
Abstract: This disclosure deals with the precision pressure reduction of a fluid stream while attenuating and diffusing jet-produced sound therein from a jet-port array as in valves and the like, but without substantial sound-regeneration during the same, through the use of enveloping apertured screens and the like positioned close to the vortex mixing region and adapted to produce a controlled gradual frictional reduction in pressure gradient while controlling the velocity of the streams exiting from the jet-port array.
Abstract translation: 该公开内容涉及流体流的精确压力降低，同时在喷射端口阵列中像喷射口阵列那样衰减和扩散喷射产生的声音，如在阀等中，但是在其中没有实质的声音再生，通过使用包络有孔 筛子等定位成靠近涡流混合区域并且适于在控制从喷射口阵列排出的流的速度的同时产生压力梯度中受控的逐渐摩擦减小。
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88.发明授权Noise supression air duct assembly for air cooled internal combustion engines in vehicle installations 失效用于车内安装的空气冷却内燃机的噪声排气空气总成
公开(公告)号：US3791482A
公开(公告)日：1974-02-12
申请号：US3791482D
申请日：1973-05-14
Applicant: COLEMAN CO
Inventor： SYKORA H
Abstract: The noise emitted by an air cooled internal combustion engine in a vehicle installation is suppressed by an air duct assembly which is light weight and easily removable to permit access to the engine and related components for routine adjustments and servicing. The duct assembly includes relatively rigid air intake and air exhaust ducts, each of which is integrally molded from plastic with sound absorbing qualities. For axial fan cooled engines, the fan and cylinder cooling fins are enclosed by a shroud provided with air intake and exhaust openings. The cowl of the vehicle which encloses the engine is also provided with air intake and exhaust openings. The intake duct extends between the air intake opening of the vehicle cowl and the air intake opening in the engine shroud, and the exhaust duct extends between the exhaust opening of the engine shroud and the exhaust opening in the vehicle cowl. Each duct provides a baffled or tortuous air passage so that noise cannot escape through the duct without being reflected from the walls of the duct, and each duct is removably secured to either the engine shroud or the cowl by spring latches which permit quick removal of the ducts when desired. The duct assembly also supplies combustion air through a baffled path to a carburetor plenum chamber.
Abstract translation: 在车辆安装中由空气冷却的内燃机发出的噪声被一个空气管道组件所抑制，空气管道组件重量轻且易于拆卸，以允许进入发动机和相关部件进行常规调整和维修。 管道组件包括相对刚性的空气入口和排气管道，每个管道均由具有吸音质量的塑料整体模制。 对于轴流风扇冷却发动机，风扇和气缸散热片由带有进气和排气口的护罩封闭。 包围发动机的车辆的整流罩还设有进气和排气口。 进气管道在车辆整流罩的进气口与发动机外罩的进气口之间延伸，排气管道在发动机罩的排气口与车顶罩的排气口之间延伸。 每个管道都提供有折流或曲折的空气通道，使得噪音不能通过管道逃逸而不会从管道的壁反射，并且每个管道可通过弹簧闩锁可拆卸地固定到发动机罩或罩上， 需要时管道。 管道组件还通过挡板路径将燃烧空气提供给化油器增压室。
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公开(公告)号：US3691772A
公开(公告)日：1972-09-19
申请号：US3691772D
申请日：1970-10-29
Applicant: SIDNEY E CROSS
Inventor： CROSS SIDNEY E
CPC classification number: F01N1/08 , F01N3/043 , F01N2230/00 , F01N2490/06 , Y02T10/20
Abstract: The exhaust manifold of an internal combustion engine is connected to a header pipe that branches to parallel connected inlet ports of a liquid cooled condenser and a muffler. The outlet ports of the condenser and muffler are connected in parallel to a tailpipe. A conduit section communicates between the interior of the muffler and the inlet port of the condenser thereby enabling some of the gas acted upon by the muffler to be also treated by passage through the condenser. A substantial amount of hydrocarbon material condenses in the condenser so that purified exhaust gas is delivered from the outlet port of the condenser to the tailpipe.
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公开(公告)号：US3665712A
公开(公告)日：1972-05-30
申请号：US3665712D
申请日：1970-02-09
Applicant: WILLIAM L TENNEY
Inventor： TENNEY WILLIAM L
CPC classification number: F01N13/08 , F01N1/08 , F01N1/089 , F01N13/1888 , F01N2590/06 , F02B25/00 , F02B27/04 , F02B2075/025 , F02B2700/032 , Y02T10/146
Abstract: Two-cycle engine exhaust systems including a resonance chamber which has at least one change of direction or bend in the resonance chamber and which is used in combination with powered tools and vehicles, such as chain saws and snowmobiles. Bending the resonance chamber saves space and keeps the exhaust resonance chamber out of the way of an operator. The further improvement of including an additional silencing section located within the crook of the bend in the resonance chamber in combination with two-cycle engines, is also disclosed.
Abstract translation: 双循环发动机排气系统，包括共振室，其在共振室中具有至少一个方向或弯曲变化，并且与动力工具和车辆如链锯和雪地摩托车组合使用。 谐振腔的弯曲节省空间，并使排气共振室不受操作者的伤害。 还公开了包括位于共振室中的弯曲部的弯曲部内的另外的消音部分与双循环发动机的组合的进一步改进。
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