ГЛУШИТЕЛЬ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

FIELD: engines and pumps. SUBSTANCE: invention relates to the ICE exhaust system silencer. Claimed silencer comprises the case (2) with peripheral shell (3) closed in circumferential direction (5). End bottom (6) is arranged at two lengthwise ends spaced apart axially. It comprises the silencer insert (15) arranged in the case (2) and provided with at least one waste gas intake pipe (8) and at least one waste gas discharge pipe (10). Shell (3) is segmented in peripheral direction (5) and comprises at least one shell segment (11, 12). Said shell comprises at least one bore (7, 9) to house at least one pipe (8, 10). The compact design results if said segmented shell (3) has at least one shell inlet segment (11) and at least one discharge element (12), is the shell inlet element (11) has at least one inlet bore (7) to house inlet pipe (8), and if the shell discharge segment (12) has at least one discharge bore (9) to house the discharge pipe (10). EFFECT: simplified fabrication, compact arrangement in the exhaust gas system. 10 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 579 425 C2 (51) МПК F01N 1/08 (2006.01) F01N 1/10 (2006.01) F01N 13/18 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013149633/06, 14.05.2012 (24) Дата начала отсчета срока действия патента: 14.05.2012 (72) Автор(ы): АНДРЕ Йоахим (DE), ШУГ Норберт (DE) 08.06.2011 DE 102011077183.2 (43) Дата публикации заявки: 20.07.2015 Бюл. № 20 R U (73) Патентообладатель(и): ЭБЕРШПЕХЕР ИГЗОСТ ТЕХНОЛОДЖИ ГМБХ УНД КО. КГ (DE) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 10.04.2016 Бюл. № 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.01.2014 2 5 7 9 4 2 5 (56) Список документов, цитированных в отчете о поиске: US 3776366 A, 04.12.1973. DE 102008056350 A1, 01.07.2010. RU 2101515 C1, 10.01.1998. RU 2192548 C2, 29.01.2001. RU 47978 U1, 10.09.2005. DE 102008032765 A1, 05.02.2009. (86) Заявка PCT: 2 5 7 9 4 ...

ГЛУШИТЕЛЬ ШУМА ВЫБРОСОВ ПАРА

Полезная модель относится к технологическим устройствам, механизм действия которых основан на ступенчатом дросселировании паровоздушной среды, с целью снижения ее скорости и изменения уровня звукового давления, генерируемого при выбросах пара в атмосферу на объектах энергетики.Задачей полезной модели является разработка глушителя шума выбросов пара, в котором устранены недостатки аналогичных устройств.Технический результатом является разработка глушителя шума выбросов пара, работающего на диапазоне частот 63,5-8000 Гц, имеющего малые габариты при работе в широкополосных диапазонах за счет установки дроссельных блоков, а также имеющего теплоизоляцию для исключения конденсации влаги и последующего ее замерзания на стенках аппарата.Технический результат достигается тем, что глушитель шума выбросов пара, имеющий цилиндрическую форму, состоящий из резонаторов, установленных в разрыве трубопровода отвода отходящих газов, при этом волны звука, распространяющиеся по акустическому прозрачному перфорированному ...

ГЛУШИТЕЛЬ-ОЧИСТИТЕЛЬ-ЭЛЕКТРОГЕНЕРАТОР ДЛЯ ОТРАБОТАВШИХ ГАЗОВ

FIELD: manufacturing technology. SUBSTANCE: invention relates to internal combustion engines sound absorption and exhaust gases cleaning devices with simultaneous electric power generation. Summary of invention is that housing is equipped with diffuser and confuser accommodating vertical zigzag-shaped perforated containers, filled with pumice granules from metallurgical slags with gas channels creation between them. Housing, diffuser, confuser and detachable cover walls are made with longitudinal rectangular corrugations forming longitudinal rectangular seats, in which thermoelectric units are partially recessed, inside which zigzag rows of thermal emission converters are placed. Each zigzag rows thermionic converter is washed by ambient air, from outside thermoelectric units are interconnected in pairs by jumpers and electric capacitors, and first and last of said thermoelectric units electric capacitors are connected with current outputs. EFFECT: technical result is higher efficiency. 1 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F01N 5/02 F01N 1/10 F01N 3/08 F02G 5/02 (13) 2 601 075 C1 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015126391/06, 01.07.2015 (24) Дата начала отсчета срока действия патента: 01.07.2015 (72) Автор(ы): Ежов Владимир Сергеевич (RU) Приоритет(ы): (22) Дата подачи заявки: 01.07.2015 (45) Опубликовано: 27.10.2016 Бюл. № 30 2 6 0 1 0 7 5 R U (54) ГЛУШИТЕЛЬ-ОЧИСТИТЕЛЬ-ЭЛЕКТРОГЕНЕРАТОР ДЛЯ ОТРАБОТАВШИХ ГАЗОВ (57) Реферат: Изобретение относится к устройствам для прямоугольными гофрами, образующими шумоглушения и очистки отработавших газов продольные прямоугольные гнезда, в которые двигателей внутреннего сгорания с частично утоплены термоэлектрические звенья, одновременным получением электроэнергии. внутри которых помещены зигзагообразные Техническим результатом является повышение ряды, состоящие из термоэмиссионных эффективности. ...

ГЛУШИТЕЛЬ ДВИГАТЕЛЯ ТРАНСПОРТНОГО СРЕДСТВА

FIELD: transport engineering; engines for automotive vehicles. SUBSTANCE: muffler has housing made in form of two half- envelopes with length and width exceeding their depth. Exhaust pipeline passing inside housing is enclosed by filler material. Two ends of exhaust pipeline are reliably secured on housing, and exhaust pipeline is in contact only with filler material in housing inner space. Muffler has plate which passes depthwise between envelopes without contact with pipeline and connects lower portion of envelope halves. EFFECT: enlarged operating capabilities and enhanced reliability. 4 cl, 5 dwg ‘гос ПЧ Го (19) (51) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ 2101 515 ^^ С1 МК” р 01 м 7/18, 1/24 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93005001106, 05.11.1991 (30) Приоритет: 09.11.1990 ЗЕ 9003571-8 (46) Дата публикации: 10.01.1998 (56) Ссылки: ГЕ, заявка, 3238638, кл. Е 01 М 7,18, 1984. (86) Заявка РСТ: ЗЕ 91100745 (05.11.91) (71) Заявитель: АБ Вольво (3Е) (72) Изобретатель: Урбан Кулландер[3Е], Карл Бергквист[3Е] (73) Патентообладатель: АБ Вольво ($Е) (54) ГЛУШИТЕЛЬ ДВИГАТЕЛЯ ТРАНСПОРТНОГО (57) Реферат: Использование: изобретение относится к глушителю шума двигателя транспортного средства. Сущность изобретения: глушитель содержит корпус, выполненный в виде двух половинных оболочек, имеющих длину и ширину, превышающие их глубину. Выхлопной трубопровод проходит внутри корпуса и окружен материалом наполнителя. Два конца выхлопного трубопровода надежно прикреплены к корпусу, а выхлопной трубопровод контактирует ТОЛЬКО С материалом наполнителя во внутренней СРЕДСТВА полости корпуса. Глушитель содержит пластину, которая проходит в направлении глубины между оболочками без касания выхлопного трубопровода и соединяет нижние части половинных оболочек. 3 з. п. ф-лы, 5 ИЛ. 1 ‚(У А 1 . 11 ` т | = = 9. ды 2101515 С1 КО ‘гос ПЧ ГЭ КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВИ “” 2101 515' (5) 21° р 04а М 71718, 1/24 СЛ 12) ...

Звукопоглощающие сопла для систем отбора тепла на вход

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 104 860 A (51) МПК F02C 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017104860, 15.02.2017 (71) Заявитель(и): Дженерал Электрик Компани (US) Приоритет(ы): (30) Конвенционный приоритет: 16.02.2016 US 15/044,149 Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" Стр.: 1 A 2 0 1 7 1 0 4 8 6 0 R U A (57) Формула изобретения 1. Звукопоглощающее сопло для системы отбора тепла на вход с использованием потока воздуха, выпускаемого из компрессора, содержащее наружный корпус, звукопоглощающее средство, расположенное внутри наружного корпуса, выпускные отверстия, расположенные в наружном корпусе, воздуховод, сообщающийся с наружным корпусом, и зону с суженным проходным сечением, расположенную вокруг наружной камеры и воздуховода, для прохождения воздуха, выпускаемого из компрессора. 2. Звукопоглощающее сопло по п. 1, в котором наружный корпус имеет первый конец и второй конец. 3. Звукопоглощающее сопло по п. 2, в котором указанные выпускные отверстия расположены вокруг первого конца наружного корпуса. 4. Звукопоглощающее сопло по п. 2, в котором указанные выпускные отверстия расположены вокруг второго конца наружного корпуса. 5. Звукопоглощающее сопло по п. 2, в котором зона с суженным проходным сечением имеет одно или более щелевых отверстий или зазоров вокруг воздуховода на втором конце наружного корпуса. 6. Звукопоглощающее сопло по п. 2, содержащее воздушную камеру вокруг первого конца наружного корпуса, сообщающуюся с воздуховодом. 7. Звукопоглощающее сопло по п. 6, в котором воздушная камера содержит кольцевую полость для воздуха. 8. Звукопоглощающее сопло по п. 7, в котором зона с суженным проходным сечением имеет отверстия, расположенные внутри кольцевой полости для воздуха. 9. Звукопоглощающее сопло по п. 2, в котором воздуховод содержит трубку Вентури. 10. Звукопоглощающее сопло по п. 9, в котором зона с суженным проходным сечением содержит ...

Soot filter, for treating vehicle IC motor exhaust gas, is removably fitted into end of exhaust pipe as rectangular box

The filter, for removing soot particles in the exhaust gas from a vehicle internal combustion motor, is an add-on fitting inserted into the end of the normal exhaust pipe. The filter has a flat and rectangular box shape (1), with stems (3) at the interior (2). They are placed alternately, at intervals (5), to form a cascade flow path through the filter in the gaps between their ends and the housing. Filter inserts (4) are in tightly-fitting packets of steel wool, coated steel wool, fine steel wool or mineral wool.

Hot gas conduit assembly - consists of composite aluminium hollow body with sheet steel end and gas impinges on steel deflector

The composite aluminium hollow-body, sheet-steel closure, hot gas conduit, is basically as in 28 04 875. It comprises a one-piece elongated, partitionless aluminium extrusion plus mild- or alloy-steel sheet end pieces configured to complete space enclosure and cause a thermal down-gradient in gas flowing from inlet to outlet. The aluminium extrustion, is externally finned. It is shaped to leave an annular space (10) between it and a cylindrical or other sectional shape steel inner pipe. Holes (12) in the pipe (1) at the devices inlet allow some gas to flow into that space, impinging first on delfecting surfaces of the steel end piece (7). The flow paths recombine via holes (13) in the outlet end piece (8).

Enamelled exhaust silencer for IC engines - has two longitudinal sections with perforated walls held together by sleeve

The silencer is made in two symmetrical halves (1a, 1b). Each consists of a cylindrical metal tube open at one end and closed at the other with a central hole through the closed end. The two halves are enamelled. Their shape makes enamelling both inside and outside possible. After enamelling an exhaust an exhaust pipe (3a, 3b) with perforations in its wall is pushed into each silencer half through the hole in the closed end. The space round the pipe is filled with steel used to act as sound absorbing material. The two halves are then pushed into a metal sleeve (2) from opposite ends until their open ends abut in the centre of the sleeve. The sleeve is a tight fit and holds the assembly firmly.

Auspuff-Schalldaempfer

Silencer

In a silencer for the damping of sound waves generated by internal combustion engines an inner pipe (11) is arranged in a casing pipe (10). The space (14) between casing pipe (10) and inner pipe (11) is filled with sound-absorbing media. Silencing occurs due to reflection on the transitional surface between inner pipe (11) and the sound-absorbing media. By means of a deformation of the inner pipe (11) into a pipe of polygonal cross-section with sides (11b) deformed into the interior of the polygon, an enlargement of the transitional surface is achieved, which makes enhanced silencing possible but nevertheless only slightly reduces the engine power output. ...

Abgasstrang einer Brennkraftmaschine, insbesondere Dieselmotor eines Nutzfahrzeuges wie Lastkraftwagen oder Omnibus, mit integrierten Abgasnachbehandlungs- und Schalldämpfungsvorrichtungen

KRAFTFAHRZEUG-SCHALLDÄMPFER

Schalldämpfer

Die Erfindung betrifft einen Schalldämpfer (1) für ein luftschallführendes Rohrsystem, insbesondere für eine Abgasanlage, vorzugsweise einer Brennkraftmaschine, umfassend ein Gehäuse (2), das einen Innenraum (3) umschließt, ein Einlassrohr (4), das im Innenraum (3) einen Auslass (5) aufweist, ein Bypassrohr (6), das im Gehäuse (2) vom Einlassrohr (4) abgeht und im Innenraum (3) einen Auslass (7) aufweist, ein durch die Gasströmung betätigtes Schaltelement (8), das stromab des Bypassrohrs (6) am oder im Einlassrohr (4) angeordnet ist, und wenigstens ein Auslassrohr (9), das im Innenraum (3) einen Einlass (10) aufweist. Außerdem ist der Innenraum (3) akustisch ungeteilt, derart, dass das vom Luftschall beaufschlagte Volumen des Innenraums (3) bei geöffnetem und bei geschlossenem Schaltelement (8) gleich groß ist.

Abgasschalldämpfer

Reduction of material and acoustic emissions from exhaust gases involves passing exhaust gas stream in uniform flow through tubes and tube bundles containing catalytically-active substances and absorbents

Process for reducing the material and acoustic emissions from exhaust gases involves passing the exhaust gas stream in a uniform flow through tubes and tube bundles containing catalytically-active substances and physically- and chemically-active absorbents. An independent claim is also included for a device for reducing the material and acoustic emissions from exhaust gases comprising an exhaust gas inlet pipe (10) connected via a catalyst (4, 4') to a silencer (5) whose functional elements are formed as tubes.

Fuellung fuer Schalldaempfer, insbesondere an Verbrennungskraftmaschinen

Schalldämpferbaugruppe

Eine Schalldämpferbaugruppe für eine Abgasanlage einer Brennkraftmaschine, insbesondere in einem Fahrzeug umfasst einen Schalldämpfer (42) mit einem entlang einer Gehäuselängsachse langgestreckten Schalldämpfergehäuse (10) und eine das Schalldämpfergehäuse (10) umkleidende Gehäusehülle (40), wobei an der Gehäusehülle (40) wenigstens eine Luftleitausformung (34) vorgesehen ist.

STOSSSTANGEN / SCHALLDÄMPFERANORDNUNG

Rohrbefestigungsverfahren

Absorption muffler for exhaust equipment, has damping pipe enclosed by casing, where pipe and casing are rotatable and/or adjustable against each other along longitudinal axis of pipe

The muffler has a damping pipe (10) enclosed by a casing (11). The pipe and casing are rotatable and/or adjustable against each other along a longitudinal axis of the pipe. Perforation holes of pipe and perforation holes of the casing are displaceably arranged against each other in a position. The pipe and the casing are formed of materials with different thermal expansion coefficients, where coefficients differ around 20 percent.

Schalldämpfer

Schalldämpfer (11) für eine Brennkraftmaschine, insbesondere Kraftfahrzeugmotor, mit zumindest einem vom Abgas der Brennkraftmaschine durchströmbaren Dämpfungsraum (27) mit wenigstens einer Abgaseintrittsöffnung (54) und wenigstens einer Abgasaustrittsöffnung (55) sowie Mitteln zur zumindest bereichsweisen Wärmeabschirmung des Dämpfungsraums (27) nach außen, wobei der Dämpfungsraum (27) zumindest bereichsweise von wenigstens einem Isolationsraum (29) umgeben ist, der einerseits nach außen gasdicht verschlossen ist und andererseits mit dem Dämpfungsraum (27) über zumindest eine Öffnung (47) in Verbindung steht, jedoch nicht vom Abgas durchströmbar ist, und wobei der Dämpfungsraum (27) in einem Innengehäuse (23) und der Isolationsraum (29) zwischen dem Innengehäuse (23) und einem das Innengehäuse (23) umschließenden, gasdichten Außengehäuse (13) angeordnet ist, dadurch gekennzeichnet, dass das Innengehäuse (23) zumindest auf einer Seite schwimmend im Außengehäuse (13) gelagert ist und dass ...

Abgasnachschalldämpfer

Ein Abgasnachschalldämpfer für eine Brennkraftmaschine weist mit von Abgasen durchströmte erste und zweite Schalldämpfer auf, die voneinander getrennt sind und jeweils eine Abgaszu- und -abführung durch ein Abgasführungsrohr aufweisen, das in ein stromab anschließendes Abgasrohr einmündet, in dem eine zeitweise verschließbare Abgassperrklappe angeordnet ist. Der Abgasnachschalldämpfer umfasst zwei Abgasführungsrohre, wobei das erste Abgasführungsrohr innerhalb des Abgasnachschalldämpfers eine Einmündungsöffnung für zwangsweise austretende Abgase vom zweiten Abgasführungsrohr bei geschlossener Abgassperrklappe aufweist, in welches die Abgase der Brennkraftmaschine direkt einströmen.

Exhaust filter with accelerator tubes

An exhaust filter 50 comprising an inlet in fluid communication with an outlet via a chamber, where the chamber comprises an outer wall and an inner core extending in the longitudinal direction and wherein the inner core is surrounded by a filter medium and is provided with at least one accelerator tube 54 between the inner core and the outer wall, the at least one accelerator tube extending in the same longitudinal direction as the inner core. Preferably the filter medium may be a honeycomb catalyst and the inner core may also comprises an inlet gas deflecting cap 23a, to deflect exhaust gases from the inlet toward the accelerator tube, and an outlet gas deflecting cap. Muffling material may be provided inside the inner core and at the outer surface of the chamber, where the inner core may also have perforations in its outer surface.

Vehicle exhaust silencer

A silencer

An Improved Silencer Employed in connection with the Exhaust Ports of Internal Combustion Engines.

... 9414. Bottomley, W. Oct. 9. Exhaust-silencers comprise a chamber A filled with wire &c. arranged in sections of varying size held between perforated end plates G, which are adjustably mounted on screws H.

Silencer for exhaust and other pulsating gases and vapours

... 312,937. Jackson, L. Mellersh-, (Burgess Laboratories, Inc.). June 2, 1928, [Convention date]. Sound of discharge, modifying.-A silencer, applicable to firearms comprises a substantially straight and unobstructed duct with a lining of porous gas-pressure and sound-absorbing material, which occupies from 1 to 20 per cent of the space in which it is packed. In the case of engines, the material should be non-inflammable and may consist of mineral fibre, metallic shavings, mica, slagwool, pumice and the like. A sheet-metal cylinder 1, Fig. 1, has end cover plates 5, 6 to which are secured respectively an inlet pipe 7 and outlet pipe 9 for the medium to be silenced. Coaxially arranged in the cylinder is a foraminous tubular member 3, e.g. of perforated sheet metal, the perforations in which occupy from 1 to 35 per cent of the surface of the metal, and this provides a straight unobstructed duct 4 for the gases. The annular space 2 between the member 3 and cylinder 1 is packed with the sound-absorbing ...

VEHICLE ENGINE EXHAUST MUFFLERS

A moulded ceramic or porcelanic body 1 has at least one end cover 3 with an aperture for an exhaust flow pipe 5. The body is covered by insulating rock wool packing 10. Figs. 4 and 5 inside a protective aluminum-plated metal casing (11). The metal casing (11) has end covers (12, 13) made of the same metal, which have edges flanged over end flanges (15) of the body. Both metal covers have holes, each with a neck (16), through which the ends of the exhaust flow pipe 5 project. ...

A sound attenuator for rotary piston blower

A sound attenuator comprises a casing (1) of generally cuboidal shape provided with a flat, generally rectangular flow channel which is at least partly bounded by sound absorbing material and follows a meandering or zigzag path. ...

SILENCER

Silencer for exhaust gases

This invention relates to a silencer for muffling the flow of exhaust gases from an engine before they enter the atmosphere. This silencer comprises a tubular housing having an absorption section with an inlet and an outlet opening. The absorption section is constructed of three walls: and outside wall, a middle wall and a perforated inside wall. Positioned between the middle and outside wall is a layer of heat insulating material and positioned between the middle and inside wall is a layer of sound absorption material. Two symmetrical members are aligned parallel to each other within the absorption section with each member having an inner and an outer wall and a layer of sound absorption material therebetween. When the two symmetrical members are connected together, they form a hollow tubular inlet connector and a hollow tubular outlet connector which have parallel aligned axis. In addition, two longitudinally extending slots are constructed in each tubular connector. These slots communicate ...

Improved form of silencer for the exhaust gases from internal combustion engines

... 1, 084, 819. Exhaust silencers. G. E. L. WALKER. Oct. 6, 1964 [Nov.14, 1963], No. 40718/64. Heading F1B. An exhaust silencer comprises a core 6, within casing 1 forming an annular passage 12 through which the gases flow. The core is closed by end plates 8, 9, and may have a perforated wall 7. The interior of the core may be filled with heatresistant fibrous material. The inlet pipe 4 projects right through the core to chamber 3a, from which the gases flow through annular space 12 to space 2a and then through outlet pipe 5 extending through the core. Resonant chambers 18 may be formed at the ends of the core.

Improvements in or relating to silencers for exhaust gases and the like

... 1,111,474. Exhaust silencers. PECO SILENCERS Ltd. July 19, 1965 [July 22, 1964], No. 35920/67. Divided out of 1,111, 471. Heading F1B. The subject-matter is included in the parent Specification but the claims relate to a silencer having an outlet pipe of larger bore than the inlet pipe.

Improvements in or relating to silencers for gas streams

... 773,227. Silencers for gaseous currents. COOPER'S MECHANICAL JOINTS, Ltd., and STREETE, C. M. Sept. 12, 1955 [Sept. 21, 1954], No. 27320/54. Class 7 (2): A duct 12 having at all transverse planes along a substantial length thereof a crosssectional area which is small in relation to the peripheral length of the duct is substantially wholly surrounded by a mass of fibrous or porous sound-absorbing material 17 contained in a casing 1, and is arranged to receive the gases at one end from an expansion chamber 7 to deliver at the other end into a secondary expansion chamber 13 from which the gases are discharged through a comparatively narrow outlet. As shown, the duct 12 is formed by a perforated, tubular member the ends of which fit over flanges provided by slots of the same configuration as that of the duct and formed in perforated plates 8, 11, the casing 1 being of elliptical, circular or rectangular cross-section and comprising two parts welded together along flanges 2. The expansion chambers ...

GAS-FLOW NOISE REDUCTION SYSTEMS

MUFFLER

ABGASSCHALLDAEMPFER

The invention relates to an exhaust silencer, with an absorption silencer followed by an absorption and reflection silencer following it in the direction of flow of the exhaust gases. According to the invention, the envelope of the absorption silencer A is composed of two concentric tubes 1, 2 whose inner tube 2 is equipped with orifices 20, the intermediate space formed between these two tubes 1, 2 being filled with a sound insulation substance, and in that a separation partition 12, situated in the first external chamber 4 of the absorption and reflection silencer B, prevents direct passage of the exhaust gases from the second pipeline 10 into the third pipeline 11, and in that the end zone 8, 9 passing into the second external chamber 6, of the pipelines emerging into this chamber, namely of the first pipeline 7 and of the second pipeline 10, forms an acoustic filter.

VORRICHTUNG ZUR DAEMPFUNG VON BEIM AUSSTROEMENLASSEN VON UNTER UEBERDRUCK STEHENDEM GAS IN DIE ATMOSPHAERE ENTSTEHENDEN GERAEUSCHEN

ANORDNUNG IN EINEM ABGASSCHALLDAMPFER

GAS FLOW SILENCER

SCHALLDAEMPFER

SCHALLDAEMPFER FUER DIE AUSPUFFLEITUNG EINER BRENNKRAFTMASCHINE

MUFFLER FOR GAS FLOW

ABGASSCHALLDAEMPFER

EXHAUST SYSTEM FOR FRACTIONAL HORSEPOWER MOTOR

DEVICE FOR THE ABSORPTION OF WHEN THE LEAKING OUT LETTING UNDER POSITIVE PRESSURE STANDING GAS INTO THE ATMOSPHERE DEVELOPING NOISES

EXHAUST SOUND STEAMER FUR MEHRZYLINDRIGE INTERNAL-COMBUSTION ENGINES

EXHAUST SYSTEM FOR INTERNAL-COMBUSTION ENGINES

CABLE STRAP WITH CELEBRATIONS AND SWIVELLING ONE BOLTING DEVICE MECHANISMS

EXHAUST FOR TWO-WHEELED MOTOR VEHICLES AND TWO-WHEELED MOTOR VEHICLE

EXHAUST SYSTEM FOR INTERNAL-COMBUSTION ENGINES

WASTE GAS SOUND ABSORBER

MUFFLER

MUFFLER FOR A ROTARY SCREW COMPRESSOR

WASTE GAS SOUND ABSORBER

Waste gas sound absorber

EXHAUST SOUND STEAMER FUR MEHRZYLINDRIGE INTERNAL-COMBUSTION ENGINES

MUFFLER DIFFUSER FOR EXHAUST EXPANSION

MUFFLER WITH GAS DISPERSION COVERING AND NOISE-ABSORBING LAYER

SILENCER FOR FLOWING GASES

ENGINE MUFFLER

GAS EXHAUST SILENCER

Exhaust apparatus for small-sized engine

Muffler with spark arrestor

MOTOR VEHICLE MUFFLER

SILENCER

SILENCER DEVICE

SILENCER FOR EXHAUST GASES

METHOD AND DEVICE FOR SILENCING THE EXHAUST NOISE OF INTERNAL COMBUSTION ENGINES

A SILENCER AND A METHOD OF OPERATING A VEHICLE

A device (a silencer) for silencing a flow, comprises at least one acoustic chamber through-flowed by gas, e.g., exhaust gas, at least one inlet pipe and at least one pipe or passage interconnecting two chambers or a chamber and an exterior environment or chamber and is designed with such cross-sectional area transitions between passages and the chambers that the sound attenuation achieved by the device is high while the pressure drop across the silencer is low and that high attenuation at low characteristic frequencies of flow systems comprising the device are obtained. One or more diffusers and/or monolithic bodies or catalysts may be comprised in the device. The passages may be curved or helical so as to allow for a low natural frequency. Embodiments with resonance chambers attenuating at selected frequencies are disclosed. A method for operating a vehicle comprising a combustion engine and a silencing system is disclosed.

GAS EXHAUST SILENCER

ACOUSTICAL ENERGY ATTENUATION APPARATUS

Schalldämpfvorrichtung.

Silencieux.

Schalldämpfer.

Dispositif extincteur d'un bruit se propageant dans un fluide en écoulement, destiné notamment à un moteur à combustion interne, une arme à feu, etc.

Schalldämpfer.

Als Wärmeaustauscher ausgebildete Einrichtung zur Dämpfung von Gasschwingungen, insbesondere für Brennkraftmaschinen.

Schalldämpfer für Explosionsmotoren

Schalldämpfer

Schalldämpfer für geführte Strömungen.

Silenziatore di scarico del motore a combustione interna di un'autovettura

Verfahren zur Schalldämpfung und Schalldämpfer zur Durchführung dieses Verfahrens.

Schalldämpfer.

Schalldämpfungseinrichtung.

Schalldämpfer für Explosionsmotoren.

Silencieux pour moteur à explosion

Silencieux d'échappement pour moteur à explosion

Tube d'échappement silencieux à chicanes

Dispositif d'échappement

Pot d'échappement

Pot d'échappement pour moteur à combustion interne

IC engine exhaust gas silencer - with gases passing through two concentric insulated chambers and entering Venturi at throat

The engine exhaust gas silencer comprises a Venturi tube (1) with evacuation ports (9) at its throat, the venturi tube being surrounded by two concentric tubes (4) provided with heat and sound absorbing material. In the front of the silencer is an annular cover (1) in which the positioned entry tubes with annular heat screens (3), the tubes (4) being constituted by metal mesh. The inner tube is supported at its rear end by a ring and three radial members which bear on the rear annular cover (8) of the silencer. The exhaust gases enter the silencer through the tubes (2) and pass through the two annular chambers (56) to be drawn into the Venturi tube through the throat ports (9).

Schalldämpfer zur Anordnung vor den Lufteintrittsöffnungen von Radiallüftern

Schalldämpfer in einer Leitung

Schalldämpfer für eine Brenneranlage mit pulsierender Verbrennung

Schalldämpfer

Method of and apparatus for exhausting internal combustion engines

Disclosed herein is a method and an exhausting apparatus for an internal combustion engine including: a central exhaust passage; a first expansion chamber in an upstream portion of the exhaust system and in fluidic communication with the central exhaust passage; a second expansion chamber in a downstream portion of the exhaust system and in fluidic communication with the central exhaust passage and the first expansion chamber, forming a continuous expansion chamber throughout a length of the exhausting apparatus.

MUFFLER

A muffler, for an internal combustion engine exhaust system, includes a muffler housing () with a housing jacket () elongated in a housing longitudinal axis (A) direction and with an outer panel () connected to the housing jacket at both axial end areas thereof to define a muffler interior (). An inner panel () is arranged in and divides the muffler interior. A muffling unit () includes an exhaust-gas-carrying inner pipe (), an outer pipe () enclosing the inner pipe and muffling material () arranged between the inner pipe and the outer pipe. The inner pipe is accommodated in an opening () of an inner panel and in an opening () of one of the outer panels or of an additional inner panel. The outer pipe is permanently connected to the inner panel or/and to one of the outer panels or to the additional inner panel. 1. A muffler for an exhaust system of an internal combustion engine , the muffler comprising:a muffler housing comprising a housing jacket elongated in a direction of a housing longitudinal axis, and an outer panel connected to the housing jacket at each of two axial end areas of the housing jacket, wherein the housing jacket with the outer panel defines a muffler interior;at least one inner panel arranged in the muffler interior and dividing the muffler interior; anda muffling unit comprising an exhaust-gas-carrying inner pipe, an outer pipe enclosing the inner pipe, and muffling material arranged between the inner pipe and the outer pipe, wherein the inner pipe is accommodated in an opening of the inner panel and in an opening of one of the outer panels or an opening of the inner panel and an opening of an additional inner panel, and the outer pipe is permanently connected to the inner panel and to one of the outer panels or to the inner panel and to an additional inner panel.2. A muffler in accordance with claim 1 , wherein:the outer pipe is connected by a weld connection to the inner panel; orthe outer pipe is connected by a weld connection to one the ...

Sound suppression device for gas capture system of cyclotron product

A cyclotron sound suppression device for reducing the decibel level of the supersonic exhaust gases. A cyclotron unit for preparing a radioisotope includes a storage tank for storing a radioactive gas resulting from preparation of the radioisotope, a compressor connected with the storage tank(s); an exhaust valve in connected with the storage tank(s); and a sound suppression device in connected with the exhaust valve. The sound suppression device can be configured as a supersonic muffler and attached to the outlet valve to diffuse the exhaust gases, thereby reducing risk of hearing damage.

Silencer and a method for producing same

A silencer ( 1 ) for an exhaust gas installation of an internal combustion engine, particularly of a motor vehicle includes a housing ( 2 ), with a circumferential shell ( 3 ) closed in the peripheral direction ( 5 ) and an end base ( 6 ) at each of two longitudinal ends, spaced apart in an axial direction ( 4 ). A silencer insert ( 15 ) is arranged in the housing ( 2 ) and has an inlet pipe ( 8 ) for exhaust gas and an outlet pipe ( 10 ) for exhaust gas. The shell ( 3 ) has, in the peripheral direction ( 5 ) has at least one inlet shell-segment ( 11 ) and one outlet shell-segment ( 12 ). The inlet shell-segment has at least one inlet opening ( 7 ), into which such an inlet pipe ( 8 ) is inserted from the inside. The outlet shell-segment ( 12 ) has at least one outlet opening ( 9 ) into which such an outlet pipe ( 10 ) is inserted from the inside.

Structure of muffler

A structure pof muffler ma include a housing which has a space therein, and has a first side connected to an inlet pipe into which exhaust gas flows, a first baffle which divides an interior of the housing into a front chamber and an intermediate chamber connected to the inlet pipe,a second baffle which divides the interior of the housing into a rear chamber and the intermediate chamber connected to the inlet pipe, and a discharge pipe which is mounted to penetrate the first baffle and the second baffle, and mounted such that a first end of the discharge pipe is positioned in the rear chamber, and a second end of the discharge pipe extends through the front chamber and penetrates the housing,

MUFFLER

A muffler () for an exhaust system of a motor vehicle internal combustion engine has a housing (), with an exhaust gas inlet () and an exhaust gas outlet (), including a circumferentially extending jacket () and end panels () each axial ends. A chamber () in the housing interior (), through which exhaust gas flows during operation, is axially limited by intermediate panels () at axial ends. The thermal load on the jacket () is reduced with an insulating shell (), arranged in the housing interior, extending in the circumferential direction () along the jacket (). The two intermediate panels () are supported on the insulating shell (), each with an outer panel edge (). The insulating shell () is supported radially on the jacket () with a shell edge (). An insulating gap () is formed radially between the jacket and the insulating shell. 1. A muffler for an exhaust system of an internal combustion engine of a motor vehicle , the muffler comprising:a housing comprising a jacket extending circumferentially in a circumferential direction, a first axial end panel and a second axial end panel;at least one exhaust gas inlet to the housing;at least one exhaust gas outlet to the housing;a first intermediate panel;a second intermediate panel cooperating with the first intermediate panel to form a chamber, in the housing interior, through which exhaust gas flows during the operation of the exhaust system and which is axially limited by the first intermediate panel, at a first axial end, and by the second intermediate panel, at a second axial end; and the first intermediate panel is supported radially on the insulating shell with a first intermediate panel outer panel edge;', 'the second intermediate panel is supported radially on the insulating shell with a second intermediate panel outer panel edge;', 'the insulating shell is supported radially on the jacket with a shell edge; and', 'an insulating gap is formed radially between the jacket and the insulating shell., 'at least one ...

EXHAUST MUFFLER AND SOUND DEADENING ELEMENT

An exhaust muffler in which the anti-scattering property of a sound deadening element is high and for which shaping is not required and a sound deadening element for use with the exhaust muffler. An exhaust muffler includes an expansion chamber into which exhaust gas of an engine is introduced, and a sound deadening element in which the expansion chamber is inserted. The sound deadening element is configured from a knitted article formed by knitting continuous fibers of glass fiber. The exhaust muffler further includes an inner pipe inserted in a spaced relationship from an inner circumferential wall of the expansion chamber in the expansion chamber and configured to introduce the exhaust gas therethrough. The sound deadening element is disposed between an outer circumferential wall of the inner pipe and the inner circumferential wall of the expansion chamber. 1. An exhaust muffler comprising:an exhaust gas introduction chamber into which exhaust gas of an engine is introduced; anda sound deadening element inserted in the exhaust gas introduction chamber,wherein the sound deadening element is configured from a knitted article formed by knitting continuous fibers of glass fiber.2. The exhaust muffler according to claim 1 , further comprising:an inner pipe inserted in a spaced relationship from an inner circumferential wall of the exhaust gas introduction chamber in the exhaust gas introduction chamber and configured to introduce the exhaust gas therethrough,wherein the sound deadening element is disposed between an outer circumferential wall of the inner pipe and the inner circumferential wall of the exhaust gas introduction chamber.3. The exhaust muffler according to claim 2 , wherein the sound deadening element is formed in a cylindrical shape continuous in a circumferential direction of the inner pipe.4. The exhaust muffler according to claim 2 , wherein the sound deadening element includes a folded portion of the knitted article folded back in an axial direction ...

SILENCER AND METHOD FOR MANUFACTURING THE SAME

The invention relates to a silencer (), in particular a vehicle silencer, having a continuous pipe () as well as a first resonator chamber () and a second resonator chamber () each surrounding the pipe () and being arranged one behind the other, with the shell () of the pipe () having at least one first opening () which opens into the first resonator chamber (), and at least one second opening, which opens into the second resonator chamber (). In order to allow a more flexible manufacturability, the resonator chambers () are formed from a first housing part () and a second housing part (), each having a shell embodied around an axis, and the length of the shell of the one housing part (), as seen in axial direction, is at least the half of the length of the other housing part (), and the housing parts () are slid inside each other and overlap their shells at least in parts, and in the overlapping region (), the shell exterior face () of the first housing part () rests against the shell interior face () of the second housing part (), and in at least the overlapping region (), the shell exterior face () of the first housing part () and the shell interior face () of the second housing part () each have a constant cross-section as seen in axial direction, and the housing parts () have a recess on each side facing away from the overlapping region (), which recess the pipe () passes through. 1121415223714815141545455445445544556452122abab. Silencer () , in particular a vehicle silencer , having a pipe () forming a flow duct and having a first resonator chamber () and a second resonator chamber () , each surrounding the pipe () and being arranged one behind the other in axial direction , with the pipe () having in its shell () at least one first opening () which opens into the first resonator chamber () , and at least one second opening () which opens into the second resonator chamber () , wherein the resonator chambers ( , ) are formed from a first housing part () and a ...

LOW NOISE ENCLOSURE

Systems and apparatuses include an apparatus including an intake defined by an intake aperture, an intake baffle, and an intake floor structured to couple to an intake portion of an enclosure roof, the intake extending along at least eighty percent (80%) of a width of the apparatus on a first side, an exhaust defined by an exhaust aperture, an exhaust baffle, and an exhaust floor structured to couple to an exhaust portion of the enclosure roof, the exhaust extending along at least eighty percent (80%) of the width of the apparatus on a second side opposite the first side, a partition panel isolating the intake from the exhaust, and an engagement mechanism structured to couple the apparatus to a generator set. 1. An apparatus , comprising:an intake defined by an intake aperture, an intake baffle, and an intake floor structured to couple to an intake portion of an enclosure roof, the intake extending along at least eighty percent (80%) of a length of the apparatus on a first side;an exhaust defined by an exhaust aperture, an exhaust baffle, and an exhaust floor structured to couple to an exhaust portion of the enclosure roof, the exhaust extending along at least eighty percent (80%) of the length of the apparatus on a second side opposite the first side;a partition panel isolating the intake from the exhaust; andan engagement mechanism structured to couple the apparatus to a generator set.2. The apparatus of claim 1 , wherein the apparatus is a separate component from the enclosure roof.3. The apparatus of claim 1 , wherein an intake flow path travels in a first intake direction around the intake baffle and a second intake direction around the intake baffle opposite the first intake direction claim 1 , andwherein an exhaust flow path travels in a first exhaust direction around the exhaust baffle and a second exhaust direction around the exhaust baffle opposite the first exhaust direction.4. The apparatus of claim 1 , wherein the intake aperture is defined in the first ...

A SOUND DAMPING DEVICE FOR A DUCT OR CHAMBER

A sound damping device adapted to be arranged inside a duct, comprises a first element () including at least one first wall () of a first channel () having a first channel inlet () and a first channel outlet (), a second element () including at least one second wall () of a second channel () having a second channel inlet () and a second channel outlet (), said and outlet regions being substantially opposite to one another, wherein at least a portion of at least one of said first and second elements () comprises an acoustic energy dissipative sheet material. In accordance with the invention, said first element () comprises a guide means() further defining said first channel (); said second element () comprises a second guide means () further defining said second channel (); and said first and second guide means () are arranged in relation to one another in such a way that the first channel () forms a first angle in relation to the second channel (). 1. A sound damping device adapted to be arranged inside a duct , the sound damping device comprising:a first element including at least one first wall of a first channel having a first channel inlet and a first channel outlet; anda second element including at least one second wall of a second channel having a second channel inlet and a second channel outlet,wherein said first and second elements together form a stack or roll having an inlet region and an outlet region, said inlet and outlet regions being substantially opposite to one another,wherein at least a portion of at least one of said first and second elements comprises an acoustic energy dissipative sheet material,wherein said first element comprises a first guide means further defining said first channel,wherein said second element comprises a second guide means further defining said second channel, andwherein said first and second guide means are arranged in relation to one another such that the first channel forms a first angle in relation to the second channel ...

Muffler equipped with catalytic converter

A muffler is equipped with a catalytic converter and is compact and capable of stably supporting the catalytic converter disposed in a muffler box with a single partition. The muffler box is formed by joining outer peripheral ends of three parts which are first and second box halves with open surfaces thereof abutting each other and a partition interposed between the first and second box halves. A first silencing chamber communicating with an exhaust inlet pipe is defined between the first box half and the partition and a second silencing chamber communicating with a tailpipe is defined between the second box half and the partition. A pair of supporting bosses protruding toward the first and second silencing chambers, respectively, are formed in the partition, and the supporting bosses support a holding tube of the catalytic converter communicating between the first and second silencing chambers.

SILENCER FOR FUEL CELL VEHICLES

Disclosed is a silencer for fuel cell vehicles. The silencer for fuel cell vehicles includes a housing having an inlet configured to receive air and hydrogen flowing into the housing therethrough, an outlet, and a condensation water drain hole configured to discharge condensation water to the outside therethrough, a distribution plate disposed in the housing and having distribution holes to distribute air and hydrogen flowing into the housing, a rotary plate disposed in the housing closer to the outlet than the distribution plate, a motor connected to the rotary plate to rotate the rotary plate, and an anti-freezing unit extending from one end of the rotary plate to the condensation water drain hole. 1. A silencer for fuel cell vehicles comprising: an inlet configured to receive air and hydrogen flowing into the housing therethrough,', 'an outlet, and', 'a condensation water drain hole configured to discharge condensation water to the outside therethrough;, 'a housing havinga distribution plate disposed in the housing and having distribution holes configured to distribute air and hydrogen flowing into the housing;a rotary plate disposed in the housing closer to the outlet than the distribution plate;a motor connected to the rotary plate and configured to rotate the rotary plate; andan anti-freezing unit extending from one end of the rotary plate to the condensation water drain hole.2. The silencer for fuel cell vehicles of claim 1 , wherein:the rotary plate is configured to rotate in both directions about a central axis of the rotary plate by the motor; andthe anti-freezing unit is configured to crush frozen material formed at the condensation water drain hole by rotation of the rotary plate.3. The silencer for fuel cell vehicles of claim 1 , wherein:the motor is connected to the rotary plate by a motor shaft; andthe motor is disposed on an outer surface of the housing.4. The silencer for fuel cell vehicles of claim 1 , wherein the motor is configured to rotate the ...

MODULAR ASSEMBLY FOR AFTERTREATMENT SYSTEM

A modular assembly for an exhaust aftertreatment system is provided. The modular assembly includes an inlet portion. The modular assembly also includes a mixing element. The modular assembly further includes a first frusto-conical region diverging from the inlet portion. The modular assembly also includes a selective catalytic reduction assembly provided within a central portion of the housing. The selective catalytic reduction assembly includes a bank of catalysts. The modular assembly further includes a sound suppression element provided within the central portion of the housing and positioned downstream of the selective catalytic reduction assembly. The modular assembly includes a baffle arrangement provided within the central portion of the housing, the baffle arrangement includes a first baffle and a second baffle. The modular assembly also includes a second frusto-conical region converging from the central portion of the housing. The modular assembly further includes an outlet portion connected to the second frusto-conical region. 1an inlet portion defined by a housing of the modular assembly, the inlet portion configured to connect to an exhaust conduit;a mixing element positioned within the inlet portion and downstream of a reductant injector with respect to an exhaust gas flow direction;a first frusto-conical region diverging from the inlet portion;a selective catalytic reduction assembly provided within a central portion of the housing, the selective catalytic reduction assembly including a bank of catalysts positioned in a vertical arrangement with respect to each other; such that a central axis of each of the bank of catalysts is parallel to a central axis of the exhaust conduit;a sound suppression element provided within the central portion of the housing and positioned downstream of the selective catalytic reduction assembly; anda baffle arrangement provided within the central portion of the housing, the baffle arrangement including a first baffle ...

Muffler assembly unit

A muffler assembly unit for an exhaust system of an internal combustion engine, especially in a vehicle, includes a muffler ( 42 ) with a muffler housing ( 10 ). The muffler housing ( 10 ) is elongated along a longitudinal axis of the housing. A housing jacket ( 40 ) encloses the muffler housing ( 10 ). At least one air guiding bulge ( 34 ) is provided on the housing jacket ( 40 ).

ACOUSTIC DAMPER FOR GAS TURBINE COMBUSTORS WITH ORTHOGONAL SLOTS

An acoustic damper includes a low porosity layer section and a housing. The low porosity layer section is formed in a liner of a gas turbine combustor and has an arrangement of elongated generally S-shaped slots formed therein. The housing has a plurality of feed apertures. The housing is coupled to the low porosity layer section thereby defining a cavity such that air outside the housing is configured to flow through the apertures and through the elongated generally S-shaped slots in the low porosity layer section, thereby transforming acoustic energy into thermal energy and aiding in providing an acoustic dampening effect for the gas turbine combustor during operation thereof. 1. An acoustic damper system for a gas turbine combustor , the system comprising:a first low porosity layer section formed in a liner of the gas turbine combustor, the first low porosity layer section having a first arrangement of elongated generally S-shaped slots formed therein;a first housing having a first plurality of feed apertures, the first housing being coupled to the first low porosity layer section thereby defining a first cavity, air outside the first housing being configured to flow through at least a portion of the first plurality of feed apertures in the first housing and through at least a portion of the first arrangement of elongated generally S-shaped slots in the first low porosity layer, thereby transforming a first range of frequencies of acoustic energy into thermal energy and aiding in providing an acoustic dampening effect on the first range of frequencies of acoustic energy for the gas turbine combustor during operation thereof;a second low porosity layer section formed in the liner of the gas turbine combustor, the second low porosity layer section having a second arrangement of elongated generally S-shaped slots formed therein; anda second housing having a second plurality of feed apertures, the second housing being coupled to the second low porosity layer section ...

Muffler for an exhaust system of an internal combustion engine

A muffler for an exhaust system of an internal combustion engine, comprises a housing comprising a shell having an inner wall, an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe extending into an inner space of the housing, for conveying an exhaust gas stream into and out of the inner space of the housing, at least one baffle arranged in the inner space of the housing, the baffle comprising a baffle plate, the baffle plate having a circumference, and a baffle lip arranged at the circumference of the baffle plate, the baffle lip engaging the inner wall of the shell and having an end portion, wherein the end portion of the baffle lip is curved inwardly away from the inner wall of the shell.

Method and apparatus for filling silencer with glass fiber

There is provided a method for filling a silencer with glass fiber, for filling an internal space between a case and an inner pipe with glass fiber in a silencer in which a porous inner pipe penetrates through a pair of through holes in the case, the method including shifting the inner pipe in a penetrating direction from a normal position where the inner pipe is secured to the case, inserting a nozzle auxiliary portion into an interior of the case from a through hole opened by the inner pipe being shifted, supplying glass fiber into the interior of the case from a nozzle of a glass fiber supply machine connected to the nozzle auxiliary portion, and filling the internal space between the case and the inner pipe with glass fiber.

Dampener for a fluid accelerator such as a pneumatic blower

Disclosed is a dampener that can eliminate or reduce noise from fluid flow, where the fluid has been accelerated by equipment. A typical kind of equipment that may do such a thing is a pneumatic blower, which takes in ambient air and discharges the air at a higher velocity. The discharged fluid may be passed through the dampener, which includes a noise-absorbing spool structure and a reflective head. Noise that is not absorbed by the noise-absorbing spool structure may be reflected back on the direction of the noise-absorbing spool structure. The combination of noise absorption with noise reflection can result in the dampener efficiently dampening noise with comparatively little adverse effect on fluid flow.

Exhaust gas system for an internal combustion engine of a motor vehicle

An exhaust gas system for an internal combustion engine of a motor vehicle includes at least one exhaust gas line and an active sound-generation device, which comprises a sound line with a mouth that opens into the exhaust gas line and is connected to an electrical sound source. A housing surrounds at least one portion of the exhaust gas line arranged downstream of the mouth of the sound line into the exhaust gas line when viewed in a flow direction of the exhaust gas. The said housing is connected to an error sensor and a cavity is formed between an outer side of the exhaust gas line and an inner side of the housing. The at least one portion of the exhaust gas line extending in the housing has at least one opening that opens into the cavity.

Valve assembly

A valve assembly for an exhaust system includes a conduit, a valve flap disposed within an exhaust passageway for controlling exhaust flow through the exhaust passageway, a shaft supporting the valve flap in the exhaust passageway for rotation about a pivot axis, and a mass damper disposed external to the conduit and coupled to the shaft. The mass damper includes a longitudinal segment coupled to the shaft. The mass damper also includes a first damping mass that is disposed proximal to a first end of the longitudinal segment and is linearly movable along a centerline axis to a first distance with respect to the pivot axis. The mass damper further includes a second damping mass that is disposed proximal to a second end of the longitudinal segment and is linearly movable along the centerline axis to a second distance with respect to the pivot axis.

DEVICE FOR CONTROLLING EXHAUST SOUND OF VEHICLE

A device for controlling an exhaust sound of a vehicle includes a sound tunnel mounted near a muffler and an exhaust pipe so as to transmit exhaust sound to an interior of a vehicle, a sound introduction hole formed in the sound tunnel, and a catalytic assembly mounted in the sound tunnel so as to clog the sound introduction hole, the catalytic assembly functioning to reduce high-frequency noise and to filter exhaust gas, thereby reducing high-frequency noise included in the exhaust sound transmitted to the interior of the vehicle and thereby filtering the exhaust gas so as to prevent introduction of the exhaust gas into the interior of the vehicle. 1. A device for controlling an exhaust sound of a vehicle , comprising:a sound tunnel mounted near a muffler and an exhaust pipe so as to transmit exhaust sound to an interior of the vehicle;a sound introduction hole formed in the sound tunnel; anda catalytic assembly mounted in the sound tunnel so as to clog the sound introduction hole, the catalytic assembly functioning to reduce high-frequency noise and to filter exhaust gas.2. The device of claim 1 , further comprising:an electronic variable valve mounted on the exhaust pipe so as to control a degree of opening of the exhaust pipe in response to a control signal from an electronic control unit (ECU) of an engine; andan on-off valve coaxially connected to a valve plate of the electronic variable valve so as to control a degree of opening of the sound introduction hole.3. The device of claim 2 , wherein the on-off valve includes a valve shaft coaxially connected to the valve plate of the electronic variable valve claim 2 , and a rotating plate integrally formed at an end of the valve shaft and having a control hole formed therethrough so as to control the degree of opening of the sound introduction hole.4. The device of claim 1 , wherein the catalytic assembly comprises:a catalytic carrier including a plurality of cells, which extend longitudinally;a high-frequency ...

SILENCER AND EJECTOR IN WHICH SILENCER IS USED

A silencer is equipped with a hollow tubular portion in which a discharge flow passage is formed that communicates on one end side thereof with a discharge port of a fluid pressure device (ejector) through which a pressure fluid is discharged, a cap member attached to another end part of the tubular portion, a sound absorbing member attached to an inner wall surface of the tubular portion, and a plurality of discharge ports adapted to discharge the pressure fluid, which has passed through the discharge flow passage in an axial direction of the tubular portion, in radial directions perpendicular to the axial direction. 1. A silencer comprising:a hollow tubular portion in which a discharge flow passage is formed that communicates, on one end side of the tubular portion, with a discharge port of a fluid pressure device through which a pressure fluid is discharged;a cap member attached to another end part of the tubular portion;a sound absorbing member attached to an inner wall surface of the tubular portion; anda plurality of discharge ports adapted to discharge the pressure fluid, which has passed through the discharge flow passage in an axial direction of the tubular portion, in radial directions perpendicular to the axial direction.2. The silencer according to claim 1 , wherein the plurality of discharge ports are provided in the cap member claim 1 , and are oriented toward and open in the radial directions.3. The silencer according to claim 1 , wherein:the tubular portion includes a tubular partition wall that extends in the axial direction up to a vicinity of the cap member and partitions the discharge flow passage; andthe discharge flow passage is constituted from:a first discharge flow passage, a starting end of which faces toward the discharge port, and which extends to the vicinity of the cap member along a wall surface on an inner side of the partition wall;a second discharge flow passage adapted to change a flow direction from a terminal end part of the ...

EXHAUST SUBSYSTEM WITH FIBER PIPE AND METHOD OF FORMING FIBER PIPE

A substantially metal-free exhaust subsystem includes an exterior housing formed of polymer; and a pipe formed of a layered fibers formed at least partially of glass, and bound by an inorganic binder. The fibers may be glass or ceramic, and may define micro-pores on the interior of the pipe that aid in absorbing acoustic energy, and thereby attenuating exhaust noise. 1. An exhaust subsystem comprising:an exterior housing formed of polymer;a pipe carried by said exterior housing, that emits gases into said housing to attenuate sound;wherein said pipe is formed of a layered fibers formed at least partially of glass, and bound by an inorganic binder.2. The exhaust subsystem of claim 1 , wherein said fibers define a microporous inner surface of said pipe.3. The exhaust subsystem of claim 1 , wherein said fibers comprise calcium silicate.4. The exhaust subsystem of claim 1 , wherein said fibers comprise ceramics.5. The exhaust subsystem of claim 1 , wherein said layered fibers comprise braided fibers.6. The exhaust subsystem of claim 1 , wherein said inorganic binder is silica or silicate based.7. The exhaust subsystem of claim 1 , further comprising a fiber liner in said housing.8. The exhaust subsystem of claim 1 , wherein said pipe has been pre-molded on a molding core.9. The exhaust subsystem of claim 1 , further comprising sound insulating material within said housing to absorb energy from gasses emitted by said pipe into said housing.10. The exhaust subsystem of claim 9 , wherein said sound insulating material comprises glass fiber.11. The exhaust subsystem of claim 1 , further comprising an upstanding wall for supporting said pipe and a second pipe in said housing.12. The exhaust subsystem of claim 1 , wherein said housing has a generally oval cross-section claim 1 , and wherein said exterior housing if formed in at least two casing portions.13. A method of forming a pipe for use in an exhaust subsystem comprising forming and curing at least one layer comprising ...

INSONORIZATION INSTALLATION.

Instalación de insonorización para motores de combustión interna con una carcasa de silenciador (1) con al menos una abertura de entrada de gases de escape (6, 7) y al menos dos aberturas de salida de gases de escape (8, 9), en especial silenciadores secundarios de una instalación de gases de escape de dos tubos, en la que está previsto un primer tubo de gases de escape (17) fundamentalmente recto, que une una abertura de entrada de gases de escape (6) a una primera abertura de salida de gases de escape (8) y cuyo interior está unido, a través de al menos una abertura (20), al interior de la carcasa de silenciador (1), en la que en la dirección de corriente (I) está dispuesto detrás de las aberturas (20) un dispositivo de bloqueo (22a), que puede graduarse entre una posición que suprime al menos parcialmente la corriente de gases de escape a través de la primera abertura de salida de gases de escape (8) y otra que libera la misma, en donde el dispositivo de bloqueo (22a) puede graduarse en dependencia del número de revoluciones del motor de combustión interna, de tal modo que el dispositivo de bloqueo (22a) bloquea el primer tubo de gases de escape (17) con números de revoluciones bajos y lo libera con números de revoluciones altos, y en el que está previsto un segundo tubo de gases de escape (23) uno de cuyos extremos está unido a la segunda abertura de salida de gases de escape (9), en donde el segundo tubo de gases de escape (23) está unido por corriente a través de al menos una abertura (24, 24'', 24'''', 26) a las aberturas (20) del primer tubo de gases de escape (17), caracterizada porque el primer tubo de gases de escape (17) está configurado entre la abertura de entrada de gases de escape (6) y la abertura de salida de gases de escape (8) como tubo pasante, y porque las aberturas (20, 26) del primer tubo de gases de escape (17) y del segundo tubo de gases de escape (23) o los extremos libres del segundo tubo de gases de escape (23) ...

Turbine engine noise suppression apparatus and methods

A compact turbine engine exhaust gas noise suppressor has a housing having a first chamber, a second chamber having an outlet and communicating with the first chamber through a transfer passage, and a third chamber communicating with the first chamber through a perforated dividing wall and having a resonant sound attenuator positioned therein. A sound absorbing member is positioned in the second chamber to create therein a serpentine flow path extending between the transfer passage and the outlet. The exhaust gas noise is attenuated by flowing the exhaust gas into the first chamber through a duct into which ambient cooling air is educted, and then forcing the exhaust gas outwardly through the serpentine flow path.

一种微型气体推进器消音装置

本发明属于机械设备消音技术领域，特别涉及一种微型气体推进器消音装置。本发明主要是解决现有微型气体推进器易造成空气污染、噪音污染和易对相邻的设备及器件产生损坏的技术问题。本发明采用的技术方案为：一种微型气体推进器消音装置，包括底座和顶盖，其中：它还包括第一消音圈、第二消音圈、外圆壳体、固定环和消音材料，所述底座与微型气体推进器下端通过螺纹连接，第一消音圈、第二消音圈和外圆壳体依序设在微型气体推进器的外围且其下端与底座相接触，所述消音材料填充在第一消音圈和第二消音圈中间以及第二消音圈和外圆壳体中间，所述顶盖与微型气体推进器上端通过螺纹连接。本发明具有消音效果好、使用寿命高的优点。

Multiple muffler

본 고안은 자동차 엔진에서 나오는 폭음의 배기 가스를 각 주파수 영역별로 감쇠시키는 소음기를 배기관에 연속적으로 설치함으로써 대기중에 배출되는 배기 가스 소음의 감쇠 효율을 높인 주파수 영역별 감쇠가 가능한 멀티 소음기에 관한 것으로. 배기관(10)의 원주상 일단부로부터 돌출되어 소정의 공간을 형성하는 공명실(31), 상기 배기관(10)으로부터 상기 공명실(31)을 연통하는 다수개의 흡수공(33)이 형성된 다공 공명형 소음기(30)와; 상기 다공 공명형 소음기(30)의 후방으로 연장되는 상기 배기관(10)에 확장 연통되는 소음실(41), 상기 소음실(41)의 전방 입구측에 중심에 삼각형상으로 장착된 분리구(47), 상기 소음실(41)의 전방 상하측 내주면으로부터 후방으로 경사각을 가지면 상기 분리구(47)로 뻗는 2개의 수렴판(43), 상기 수렴판(43)의 후방쪽의 상기 소음실(41) 내주면에 부착된 흡음재(45)로 이루어진 취출구 소음기(40)를 포함하는 특징이 있다. The present invention relates to a multi-muffler capable of attenuating by each frequency region to increase the attenuation efficiency of the exhaust gas noise emitted to the air by continuously installing a silencer in the exhaust pipe to attenuate the exhaust gas of the explosion sound from the automobile engine for each frequency region. Resonance chamber 31 protruding from the circumferential end of the exhaust pipe 10 to form a predetermined space, and porous resonance with a plurality of absorption holes 33 communicating with the resonance chamber 31 from the exhaust pipe 10. A type silencer 30; A noise chamber 41 extended in communication with the exhaust pipe 10 extending rearward of the porous resonance silencer 30, and a separation hole 47 mounted in a triangular shape at the center of the front inlet side of the noise chamber 41. ), Two convergence plates 43 extending to the separating opening 47 and the silencer 41 at the rear side of the convergence plate 43 when the inclined angle is rearward from the front upper and lower inner peripheral surfaces of the noise chamber 41. ) Is characterized in that it comprises a blower silencer 40 made of a sound-absorbing material 45 attached to the inner peripheral surface.

ノイズコンバ−タ

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Snap-action valve for exhaust system

一种用于放置在管状排气管道内的被动、排气压力致动阀组件，该组件可枢轴转动地安装至一偏心轴上，以在完全关闭位置和完全开启位置之间旋转。一个偏压元件将阀瓣朝完全关闭位置推进。设计该阀瓣的形状，以使能够使用排气管道的内表面来限定在完全关闭和完全开启位置的止挡。阀瓣形状与偏压元件布置的结合，使瓣在完全开启位置基本平行于管道纵轴线，这提供了管道中的最小背压。

Muffler

본 발명은 머플러 구조에 관한 것으로서, 특히 케이스의 내부를 서로 체적이 다른 소음실로 구획하고, 체적의 양측 벽면에 흡음재를 형성하므로서, 케이스 내부로 유입된 배기가스가 체적이 다른 소음실로 유동되는 과정에서 체적의 수축과 확장이 반복되면서 흡음재를 통해 배기소음이 효과적으로 감쇄되도록 하고, 이를통해 트랜스미션의 언더커버를 형성하지 않아도 되도록 하는 머플러 구조에 관한 것이다.

Structure of muffler for decreasing noise of automobile

본 발명은 자동차용 소음 저감형 머플러 구조에 관한 것으로서, 강판으로 형성된 원형의 하우징과, 상기 하우징의 일측에서 상기 하우징을 관통하여 형성되어, 엔진의 연소 가스를 수집하는 배기 매니폴드와 연결된 유입 파이프와, 상기 하우징의 타측에서 머플러 내에서 온도와 압력이 감소된 배기 가스를 배출시키도록 장착된 배출 파이프와, 하우징의 내부에 횡방향으로 하우징을 차단하는 복수개의 배플과, 상기 배플과 배플 사이에 구비된 연결 파이프로 이루어지는 머플러 구조에 있어서, 상기 배출 파이프와 연결 파이프에 다수의 다공관홀을 천공하고, 제 1배플 및 제 4배플과 하우징의 끝단 사이, 상기 파이프가 겹쳐진 제 2배플과 제 3배플 사이, 그리고 하우징의 외벽에 흡음재를 부착하여 소음을 저감시킬 수 있는 자동차용 소음 저감형 머플러 구조를 제공하고자 한다. The present invention relates to a noise reduction type muffler structure for an automobile, comprising: a circular housing formed of a steel plate, an inlet pipe formed through one side of the housing and connected to an exhaust manifold for collecting combustion gas of an engine; And a discharge pipe mounted to discharge exhaust gas having a reduced temperature and pressure in the muffler at the other side of the housing, a plurality of baffles for blocking the housing in a transverse direction inside the housing, and between the baffle and the baffle. In the muffler structure consisting of a connecting pipe, a plurality of porous pipe holes are drilled in the discharge pipe and the connecting pipe, and between the first and fourth baffles and the end of the housing, the second and third baffles in which the pipes overlap. Noise reduction muffler for automobile that can reduce noise by attaching sound absorbing material between and between outer wall of housing We want to provide a structure.

Exhaust after-treatment device for an internal combustion engine

Die Erfindung betrifft eine Abgasnachbehandlungseinrichtung 1 für eine Brennkraftmaschine, insbesondere in einem Kraftfahrzeug, mit einem Gehäuse (2), in welches ein in einer Mischkammer (3) mündendes Abgasrohr (4) eindringt. Die Mischkammer (3) ist dabei topfförmig ausgebildet und kehrt eine Strömungsrichtung (6) von einströmendem Abgas um, wobei sie das Abgas radial außerhalb des Abgasrohres (4) zurückleitet. Ein offenes Ende (7) der topfförmigen Mischkammer (3) mündet dabei in einen Sammelraum (8), der so ausgebildet ist, dass er das Abgas zumindest einem nachfolgenden SCR-Katalysator (9) zuführt. The invention relates to an exhaust aftertreatment device 1 for an internal combustion engine, in particular in a motor vehicle, with a housing (2) into which an exhaust pipe (4) opening into a mixing chamber (3) penetrates. The mixing chamber (3) is cup-shaped and reverses a flow direction (6) of inflowing exhaust gas, wherein it recirculates the exhaust gas radially outside the exhaust pipe (4). An open end (7) of the cup-shaped mixing chamber (3) opens into a collecting space (8), which is designed such that it supplies the exhaust gas to at least one subsequent SCR catalytic converter (9).

MUFFLER WITH VERTICAL AXLE

SILENCER

Silencer for an exhaust line of a motor vehicle and motor vehicle comprising a silencer

Silencer arrangement

An automotive exhaust pipe silencer has a housing (1) with two exhaust gas inlets and two exhaust gas outlet pipes. A first exhaust gas pipe (17) links an inlet (6) with an outlet (8), passing directly through the silencing chamber and is essentially straight. The pipe (17) centre section has outlets (20) to the housing (1) chamber. The exhaust pipe (17) extension beyond the outlet (8) esp. has a throttle valve (22a).

Automobile with special arrangement of fuel tank, preliminary muffler and tank with reducer

FIELD: automobile industry; trucks. SUBSTANCE: proposed automobile with internal combustion engine is supplied with fuel from fuel tank. Preliminary and main mufflers are arranged in its exhaust duct. Hydrolytic catalyst and at least one oxygen catalyst are built into preliminary muffler. Said hydrolytic catalyst is installed with possibility of delivery of water solution of carbamide to said catalyst by means of metering device. Water solution of carbamide can be stored in special tank of can be stored in special tank of automobile. Tank for water solution of carbamide and preliminary muffler form with fuel tank a module which can be secured on frame of automobile chassis. EFFECT: provision of conditions of adequate arrangement of tank for water. 11 cl, 3 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 270 105 (13) C1 (51) ÌÏÊ B60K 1/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004123587/11, 30.07.2004 (72) Àâòîð(û): ØÒÈÐÌÀÍÍ Ýðâèí (DE) (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 30.07.2004 (30) Ïðèîðèòåò: 01.08.2003 (ïï.1-11) DE 10335265.1 R U (45) Îïóáëèêîâàíî: 20.02.2006 Áþë. ¹ 5 (73) Ïàòåíòîîáëàäàòåëü(ëè): ÌÀÍ ÍÓÒÖÔÀÐÖÎÉÃÅ ÀÊÖÈÅÍÃÅÇÅËËÜØÀÔÒ (DE) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ñ.À.Äîðîôååâó 2 2 7 0 1 0 5 äîçèðóþùåãî óñòðîéñòâà âîäíîãî ðàñòâîðà ìî÷åâèíû, êîòîðûé ìîæåò õðàíèòüñ â ñîáñòâåííîì áàêå. Áàê äë âîäíîãî ðàñòâîðà ìî÷åâèíû è ïðåäâàðèòåëüíûé ãëóøèòåëü îáðàçóþò ñ òîïëèâíûì áàêîì ìîäóëü, âûïîëíåííûé ñ âîçìîæíîñòüþ çàêðåïëåíè öåëèêîì íà ðàìå øàññè àâòîìîáèë . Òåõíè÷åñêèé ðåçóëüòàò - îáåñïå÷åíèå óñëîâèé äë ïîäõîä ùåãî ðàçìåùåíè áàêà äë âîäíîãî ðàñòâîðà ìî÷åâèíû è ïðåäâàðèòåëüíîãî ãëóøèòåë â àâòîìîáèëå. 10 ç.ï. ô-ëû, 3 èë. R U (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê àâòîìîáèëþ, â ÷àñòíîñòè ãðóçîâîìó àâòîìîáèëþ. Àâòîìîáèëü ñ äâèãàòåëåì âíóòðåííåãî ñãîðàíè ñíàáæàåòñ òîïëèâîì èç òîïëèâíîãî áàêà è ...

Automobile muffler

Snap-action valve for exhaust system

本发明提供了一种用于内燃发动机排气系统的消音器，该消音器包括壳体，该壳体具有将外壳的相对的端部封闭的入口端板和出口端板。分隔物将壳体内部分成第一室和第二室，第一室具有定位在其中的吸音材料。分隔物具有孔，孔允许在第一室和第二室之间的流体连通。贯通管延伸穿过入口端板和出口端板以及分隔物，并且具有使贯通管和第一室之间能够流体连通的多个穿孔。阀组件具有阀瓣，阀瓣定位在贯通管的内部用于在关闭位置和打开位置之间与枢转地耦合到管的轴杆一起旋转。阀定位在管的穿孔的下游，使得流动通过消音器的全部排气均穿过阀，不论阀瓣的位置。

Mat material, exhaust gas treating apparatus, and muffler

개시된 매트 재료는 적절한 층간 강도 그리고 개선된 취급성을 제공한다. 매트 재료는 무기 섬유 그리고 니들링 공정에 의해 형성되는 복수개의 니들 트레이스를 포함한다. 제1 표면으로부터 연장하는 니들 트레이스들 중 적어도 일부가 매트 재료의 두께의 1/2보다 크고 그 두께보다 작은 관통 깊이(D)를 갖는다. 제2 표면으로부터 연장하는 니들 트레이스들 중 적어도 일부가 매트 재료의 두께로부터 관통 깊이(D)를 감산함으로써 얻어지는 수치보다 큰 깊이에 도달한다. 무기 섬유 다발의 어떠한 돌출부도 제1 표면으로부터 연장하는 니들 트레이스로부터 연장하는 선 상에 있는 제2 표면 상의 위치에서 그리고 제2 표면으로부터 연장하는 니들 트레이스로부터 연장하는 선 상에 있는 제1 표면 상의 위치에서 실질적으로 존재하지 않는다. 매트 재료, 무기 섬유, 니들 트레이스, 관통 깊이, 돌출부

Exhaust silencer

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Assistant muffler for tank installed on car body

An auxiliary muffler for a tank, mounted on the exterior of a tank body, is provided to render exhaust gas to pass through a partition wall, a chamber, and a sound-absorbing material in the auxiliary muffler and thereby minimize flow energy, thus minimizing exhaust noise. An auxiliary muffler(1) for a tank, mounted on the exterior of a tank body, includes a casing(10), an inlet pipe(30), an outlet pipe(40), and a sound-absorbing material. A plurality of chambers(81,82,83) is defined in the casing by partition walls(71,72). The inlet pipe is coupled to the casing so as to communicate with a main muffler provided in the tank body and the chambers, and exhaust gas discharged from the main muffler flows through the inlet pipe to the chambers. The outlet pipe is coupled to the casing so as to communicate with the chambers, and is used to discharge exhaust gas, pressure and temperature of which are reduced while the exhaust gas passes through the chambers. The sound-absorbing material is provided in the casing to reduce noise generated by the exhaust gas introduced into the inlet pipe.

Snap-action valve for exhaust system

내연기관 배기 시스템용 머플러는 외벽과, 외벽의 양 끝단을 덮는 입력 헤더와 출력 헤더를 구비하는 하우징과, 입력 헤더를 통해 연장하는 입력 파이프와, 출력 헤더를 통해 연장하는 제1 출력 파이프와, 입력 헤더 및 상기 출력 헤더 중 하나를 통해 연장하는 제2 출력 파이프를 포함한다. 제1 출력 파이프에 피벗 결합된 주축에 의해 회전하도록 제1 출력 파이프 내에 위치하는 실질적으로 편평한 밸브 플랩을 구비하고, 밸브 플랩은 밸브 플랩의 평면이 제1 출력 파이프의 길이방향 축선에 실질적으로 평행하게 되는 개방 위치와 폐쇄 위치 사이에서 회전할 수 있는 제1 밸브 어셈블리가 구비된다. 또, 제2 출력 파이프에 피벗 결합된 주축에 의해 회전하도록 제2 출력 파이프 내에 위치하는 실질적으로 편평한 밸브 플랩을 구비하고, 밸브 플랩은 밸브 플랩의 평면이 제2 출력 파이프의 길이방향 축선에 실질적으로 평행하게 되는 개방 위치와 폐쇄 위치 사이에서 회전할 수 있는 제2 밸브 어셈블리가 구비된다. 제1 밸브와 상기 제2 밸브는 머플러를 통해 흐르는 모든 배기 가스가 밸브들을 통과하도록 위치된다.

Silencer for fuel cell vehicle

The present invention relates to a silencer for a fuel cell vehicle. The silencer for a fuel cell vehicle according to the present invention includes a housing that has a predetermined length and a cylindrical structure, the housing being provided with an expansion chamber therein which is partitioned by an inlet baffle and an outlet baffle separated from each other; an inlet tube which is smaller in diameter than the housing and in which an inlet plate is formed on the outer circumferential surface of an entrance part so as to block an entrance of the housing, the inlet baffle is formed on the outer circumferential surface of an exit part so as to form the expansion chamber, and the exit part is inserted into the entrance side of the housing; an outlet tube which is smaller in diameter than the housing and in which the outlet baffle is formed on the outer circumferential surface of an entrance part, an outlet plate is formed on the outer circumferential surface of an exit part so as to block the exit of the housing, and the entrance part is inserted into the exit side of the housing; a first drain hole that is formed in the lower surface of the inlet tube; a second drain hole that is formed in the lower surface of the housing corresponding to the first drain hole; and a water path that is formed in a space between the lower portion of the outer circumferential surface of the inlet tube and the lower portion of the inner circumferential surface of the housing so that water discharged through the first drain hole can be discharged outside through the second drain hole.

Muffler

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Silencer

본 발명은 소음기에 관한 것으로, 내부면에 흡음재가 구비된 자켓과 내부관을 갖는 소음기에 있어서, 내부관의 표면에 형성된 천공으로 인한 단면 변화를 통해 중고주파수 소음을 저감시키는 천공관부와, 천공관부의 일단에 연장되어 음파의 위상차의 상쇄를 통해 저주파수 소음을 저감시키는 연장관부와, 천공관부의 타단에 연결되어 헬름홀츠 공명을 통해 저주파수 소음을 저감시키는 공명관부를 포함할 수 있다. The present invention relates to a silencer, in the silencer having a jacket and an inner tube provided with a sound absorbing material on the inner surface, the perforated pipe portion for reducing the high-frequency noise through the cross-sectional change due to the perforations formed on the surface of the inner pipe, the perforated pipe portion It may include an extension tube portion extending to one end of the low-frequency noise through the offset of the phase difference of the sound wave, and a resonance tube portion connected to the other end of the perforated tube portion to reduce the low frequency noise through the Helmholtz resonance.

Exhausting back treating device for internal combustion engine

本发明涉及一种内燃机、特别是机动车内燃机用排气系统的排气后处理装置(1)，具有一壳体(2)，一通往混合室(3)的排气管(4)伸入到其中。将该混合室(3)设计为罐形，且将流入排气的流动方向(6)反转，从而在排气管(4)的外部径向上使排气回流。罐形混合室(3)的开口端(7)通往一收集空间(8)，对该空间进行设计，以使它将排气供给到至少一个下游的SCR催化转化器(9)中。

Automotive Silencer

본 고안의 자동차용 소음기는, 제1 확장부, 제1 테이퍼부 및 제1 축소부를 포함하며 제1 확장부는 제1 확장부의 전방 단부에 관통 구멍을 갖는 밀봉 벽을 구비하는 것인 외측 튜브; 제2 확장부, 제2 테이퍼부 및 제2 축소부를 포함하는 내측 튜브로서 외측 튜브 내에 배치되고 복수의 통기 구멍이 제2 확장부의 벽에 형성되는 것인 내측 튜브; 제3 확장부, 제3 테이퍼부 및 제3 축소부를 포함하는 내측 가이드 튜브로서 내측 튜브 내에 배치되고 내측 파이프 내에 배치된 제3 확장부의 벽에 복수의 통기 구멍이 형성되는 것인 내측 가이드 튜브; 및 제2 확장부와 제3 확장부 사이에 뿐만 아니라 제1 확장부와 제2 확장부 사이에 삽입되는 복수의 칸막이를 포함한다. 이러한 방식으로, 엔진의 출력 마력 증가 및 펌핑 손실 감소를 달성할 수 있다. 자동차용 소음기, 내측 가이드 튜브, 내측 튜브, 외측 튜브, 흡음 챔버 An automobile silencer of the present invention comprises: an outer tube comprising a first extension, a first taper and a first reduction, the first extension having a sealing wall having a through hole at the front end of the first extension; An inner tube including a second extension, a second taper, and a second shrinkage, the inner tube being disposed within the outer tube and having a plurality of vent holes formed in the wall of the second extension; An inner guide tube including a third extension, a third taper, and a third reduction, the inner guide tube having a plurality of vent holes formed in a wall of the third extension disposed in the inner tube and disposed in the inner pipe; And a plurality of partitions inserted between the first and second extensions as well as between the second and third extensions. In this way, an increase in the output horsepower of the engine and a reduction in the pumping loss can be achieved. Automotive silencer, inner guide tube, inner tube, outer tube, sound absorption chamber

Muffler

본 고안은 차량 배기파이프(1)상에 설치되는 소음장치에 있어서, 배기파이프(1)상에 나팔관 또는 깔대기 형상인 확대ㆍ축소형 아답터(2)를 장착하고, 이 아답터(2)둘레를 흡음재(4)호 충진한 상태에서 외측파이프(5) 및 측단 막음판(6)으로 밀봉하여서, 상기 아답터(2)내의 확대ㆍ축소형 체임버(2a)상에 유입된 배기가스가 속도저하를 일으키면서 내부압력이 상승되면 상기 아답터(2)측면 둘레의 흡입구멍(3)을 통해 많은 양의 배기가스가 강제 유입되기 때문에, 흡음재(4)에 의한 배기가스의 소음저감효과가 향상되어지도록 된 차량은 배기가스의 소음저감구조에 관한 것이다. According to the present invention, in the silencer provided on the vehicle exhaust pipe (1), an enlarged / reduced adapter (2) having a fallopian tube or a funnel shape is mounted on the exhaust pipe (1), and the circumference of the adapter (2) is absorbed. (4) Sealed with the outer pipe (5) and the side end blocking plate (6) in the filled state, the exhaust gas flowing into the expansion / reduction chamber (2a) in the adapter (2) causes a slowdown When the internal pressure is increased, a large amount of exhaust gas is forcibly introduced through the suction hole 3 around the side of the adapter 2, so that the noise reduction effect of the exhaust gas by the sound absorbing material 4 is improved. A noise reduction structure of exhaust gas is provided.

In-Line Cable Tie with Fixed and Hinged Locking Mechanisms

A one-piece cable tie, such as an in-line cable tie, includes a hybrid locking mechanism including both a fixed locking wedge and a hinged locking wedge. The hinged locking wedge may be laterally offset from the fixed locking wedge along a longitudinal axis of an internal passageway of the cable tie head. Preferably, the hinged locking wedge is located on a top surface of the passageway while the fixed locking wedge is located on a bottom surface of the passageway. The hinged locking wedge may be located close to the strap ingress. The cable tie is preferably made of Nylon 6.6, yet can achieve both a low thread insertion force and a high loop tensile strength suitable for demanding applications. Maximized strength is achieved through use of multiple teeth on each of the hinged and fixed locking wedges.

Motor vehicle with special arrangement of fuel tank, auxiliary sound absorber and reducer tank

본 발명은 연료 탱크(1)로부터 연료가 공급될 수 있으며, 배기가스 관(2)에는 보조 소음기(3) 및 메인 소음기가 배치되고, 상기 보조 소음기(3)에는 가수분해 촉매변환기(4) 및 경우에 따라 하나 이상의 산화 촉매 변환기(5)가 장착되며, 상기 가수분해 촉매변환기(4)에는 도우징 장치에 의해 우레아 수용액(HWL; Harnstoff-Wasser-Loesung)이 제공될 수 있으며, 상기 우레아 수용액은 고유의 HWL 탱크(9)에 저장될 수 있는 것인 내연기관을 구비한 상용차에 관한 것이다. 본 발명에 따르면, 상기 HWL 탱크(9) 및 보조 소음기(3)는 연료 탱크(1)와 서로 결합하여 하나의 구조 유닛(10)을 형성하고, 상기 구조 유닛 전체가 상용차의 섀시 프레임(11)에 고정될 수 있다. The present invention can be supplied with fuel from the fuel tank (1), the exhaust gas pipe (2) is provided with an auxiliary silencer (3) and the main silencer, the auxiliary silencer (3) is a hydrolysis catalytic converter (4) and In some cases, at least one oxidation catalytic converter 5 is equipped, and the hydrolysis catalytic converter 4 may be provided with an aqueous solution of urea (HWL; Harnstoff-Wasser-Loesung) by a dosing device. A commercial vehicle having an internal combustion engine, which can be stored in a unique HWL tank 9. According to the present invention, the HWL tank 9 and the auxiliary silencer 3 are combined with the fuel tank 1 to form one rescue unit 10, and the entire rescue unit is a chassis frame 11 of a commercial vehicle. It can be fixed to.

Device for suppressing gas flow noise

SOUND ABSORBING DEVICE AND METHOD FOR PRODUCING SOUND ABSORBING DEVICE (OPTIONS)

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 135 498 A (51) МПК F01N 13/18 (2010.01) F01N 1/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015135498, 21.08.2015 (71) Заявитель(и): ТОЙОТА ДЗИДОСЯ КАБУСИКИ КАЙСЯ (JP) Приоритет(ы): (30) Конвенционный приоритет: 25.08.2014 JP 2014-170547 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" Стр.: 1 A 2 0 1 5 1 3 5 4 9 8 R U A (57) Формула изобретения 1. Звукопоглощающее устройство, в которое вводится выхлопной газ, выпускаемый из двигателя внутреннего сгорания транспортного средства, содержащее: корпус цилиндрической формы, образующий наружный слой, расположенный на наружной поверхности звукопоглощающего устройства и проходящий в заданном направлении; корпус цилиндрической формы, образующий внутренний слой, расположенный с внутренней стороны корпуса, образующего наружный слой, в звукопоглощающем устройстве и проходящий в заданном направлении; и промежуточный лист, расположенный между корпусом, образующим наружный слой, и корпусом, образующим внутренний слой, и служащий в качестве демпфирующего материала или звукопоглощающего материала; при этом один корпус из корпуса, образующего наружный слой, и корпуса, образующего внутренний слой, включает в себя часть, подвергнутую обработке, которая подвергнута обработке для придания ей такой формы, чтобы она выступала по направлению к другому из корпусов; и промежуточный лист включает в себя принимающую часть в области, которая обращена к части, подвергнутой обработке, причем принимающая часть образована с формой, которая позволяет части, подвергнутой обработке, входить в принимающую часть. 2. Звукопоглощающее устройство по п. 1, в котором указанный один корпус включает в себя множество частей, подвергнутых обработке; промежуточный лист включает в себя множество принимающих частей, которые соответствуют соответственно множеству частей, подвергнутых обработке; ...

Muffler for Automobile

본 고안은 전부머플러와 후부머플러로 구성된 자동차용 소음기에 관한 것으로, 좀더 상세히, 엔드플레이트(221, 222)가 구비된 후부머플러본체(201) 내부에 제1, 제2, 제3 격벽(206, 207, 208)이 순차로 구비되고, 제1 격벽(206)은 격벽구멍(206a)이 구비되고, 제3 격벽(208)에는 제3 격벽구멍(208a)이 구비되고; 전부머플러로부터 배기가스가 유입되는 흡입관(202)은 제1 공간(211), 제2 공간(212), 제3 공간(213)을 순차로 거쳐 출구(202-Out)가 제4 공간(214)과 연통되고, 제3 공간(213)에 위치하는 흡입관(202) 외주면에는 흡입관 구멍2(202b)가 구비되고; 바이패스관(204)은 제3 공간(213)과 제2 공간(212)를 연통시키고; 입구(203-In)가 제1 격판(206)에 의해 고정되어 제1 공간(211)과 연통되고, 제2공간(212), 제3 공간(213), 제4 공간(214)를 거치는 "U"자형 곡관으로 구성되는 배출관(203)이 구비되는 후부머플러(200)를 포함하여 구성되는 것을 특징으로 하는 자동차용 소음기.에 관한 것이다. The present invention relates to a muffler for an automobile composed of a total muffler and a rear muffler, and more specifically, the first, second, and third partition walls 206 inside the rear muffler body 201 provided with end plates 221 and 222. 207 and 208 are provided in this order, the 1st partition 206 is provided with the partition hole 206a, and the 3rd partition 208 is provided with the 3rd partition hole 208a; The suction pipe 202 through which the exhaust gas flows from the total muffler is sequentially passed through the first space 211, the second space 212, and the third space 213, and the outlet 202-Out is the fourth space 214. A suction pipe hole 2 (202b) is provided on an outer circumferential surface of the suction pipe 202 which is in communication with and is located in the third space 213; The bypass pipe 204 communicates the third space 213 and the second space 212; The inlet 203-In is fixed by the first diaphragm 206 to communicate with the first space 211, passing through the second space 212, the third space 213, and the fourth space 214. And a rear muffler (200) provided with a discharge pipe (203) composed of a U "-shaped curved pipe. 소음기, 머플러, 흡입관, 배출관 Silencer, Muffler, Suction Tube, Discharge Tube

Noise eliminator for fuel cell

본 발명은 연료전지용 배기소음기에 관한 것으로, 보다 상세하게는 연료전지에서 수분, 미반응 수소 및 공기 등을 배출함에 있어 그 소음저감 및 수소희석을 매우 효과적으로 개선할 수 있는 연료전지용 배기소음기에 관한 것이다. 본 발명에 의한 연료전지용 배기소음기는 길이방향으로 길게 연장되고, 양단부에 입구파이프 및 출구파이프이 설치된 하우징; 상기 하우징 내에 길이방향으로 이격되어 배치된 제1 및 제2 흡음실; 및 상기 제1 및 제2 흡음실 사이에 배치된 확장실;을 포함하고, 상기 입구파이프 및 출구파이프의 직경은 상기 확장실의 직경 보다 작게 형성되며, 상기 제1 및 제2 흡음실 내에는 흡음재가 각각 내장되는 것을 특징으로 한다. The present invention relates to a fuel cell exhaust silencer, and more particularly, to a fuel cell exhaust silencer that can effectively reduce noise and dilute hydrogen in discharging water, unreacted hydrogen, and air from a fuel cell. . Exhaust silencer for a fuel cell according to the present invention extends in the longitudinal direction, the housing is provided with an inlet pipe and an outlet pipe at both ends; First and second sound absorbing chambers disposed longitudinally spaced in the housing; And an expansion chamber disposed between the first and second sound absorbing chambers, wherein the diameter of the inlet pipe and the outlet pipe is smaller than the diameter of the expansion chamber, and the sound absorbing material is formed in the first and second sound absorbing chambers. Characterized in that each is built.

Exhaust after-treatment device for an internal combustion engine

Abgasnachbehandlungseinrichtung (1) für eine Brennkraftmaschine, insbesondere in einem Kraftfahrzeug, – mit einem Gehäuse (2), in welches ein in einer Mischkammer (3) mündendes Abgasrohr (4) eindringt, – wobei die Mischkammer (3) topfförmig ausgebildet ist und eine Strömungsrichtung (6) von einströmendem Abgas umkehrt und radial außerhalb des Abgasrohres (4) zurückleitet, – wobei ein offenes Ende (7) der topfförmigen Mischkammer (3) in einen Sammelraum (8) mündet, der so ausgebildet ist, dass er das Abgas zumindest einem nachfolgenden SCR-Katalysator (9) zuführt. Exhaust after-treatment device (1) for an internal combustion engine, in particular in a motor vehicle, - With a housing (2), in which a in a mixing chamber (3) opens out the exhaust pipe (4), - wherein the mixing chamber (3) is pot-shaped and reverses a flow direction (6) of inflowing exhaust gas and returns radially outside the exhaust pipe (4), - Wherein an open end (7) of the cup-shaped mixing chamber (3) opens into a collecting space (8) which is adapted to feed the exhaust gas at least one subsequent SCR catalyst (9).

Exhaust gas denitrifing system having noise-reduction structure

본 발명은 배기가스 탈질시스템에 대한 것으로, 더욱 상세하게는 유입된 배기가스에 포함되어 있는 질소산화물이 촉매와의 탈질반응을 통해 질소로 변환되는 화학반응이 일어나는 반응기를 포함하는 배기가스 탈질시스템에 있어서, 상기 반응기는 촉매가 코팅되어 있으며 배기가스가 통과할 수 있는 다수 개의 관통공이 형성되어 있는 촉매필터부와 상기 촉매필터부를 통과하여 탈질처리된 배기가스로부터 소음을 저감하는 소음저감부를 포함하며, 상기 반응기에 의해 탈질반응과 소음의 저감이 가능하여 전체 시스템의 크기를 줄일 수 있고, 배기가스와 촉매의 접촉면적은 유지하면서 관통공의 공간을 크게 확보할 수 있어 차압은 최소화하면서도 소음감쇄효과를 높일 수 있고, 탈질반응이 소음의 저감보다 먼저 일어나므로 탈질효율을 향상시킬 수 있고, 배기가스의 압력강하를 최소화하여 엔진의 효율을 높일 수 있는 소음감쇄 구조를 갖는 배기가스 탈질시스템에 관한 것이다. The present invention relates to an exhaust gas denitrification system, and more particularly, to an exhaust gas denitrification system including a reactor in which a chemical reaction is performed in which nitrogen oxide contained in the introduced exhaust gas is converted into nitrogen through denitrification with a catalyst. The reactor includes a catalyst filter part coated with a catalyst and having a plurality of through holes through which exhaust gas can pass, and a noise reduction part for reducing noise from the denitrified exhaust gas through the catalyst filter part. The reactor can reduce the denitrification reaction and reduce the noise, thereby reducing the size of the entire system, and largely securing the space of the through-hole while maintaining the contact area of the exhaust gas and the catalyst, thereby minimizing the differential pressure while reducing the noise reduction effect. It is possible to increase the denitrification efficiency because denitrification occurs before noise reduction. In addition, the present invention relates to an exhaust gas denitrification system having a noise reduction structure capable of minimizing the pressure drop of the exhaust gas to increase engine efficiency.

Exhaust system for vehicle

The present invention relates to a muffler for a two-wheeled vehicle. According to the present invention, the muffler for a two-wheeled vehicle comprises: a housing (100) having an inlet and an outlet formed to discharge exhaust gas; a plurality of multi-level extension pipes (200) provided with holes formed on the surface thereof to allow noise entry, and formed in multiple levels to allow exhaust gas discharged from the inside of the housing (100) to move while continuously repeating dispersion and shutoff; a sound-absorbing material filled in a separation space between the housing (100) and the multi-level extension pipes (200) to absorb entering noise; and a plurality of slope cones (400) positioned between extension pipes making up the multi-level extension pipes (200) and neighboring extension pipes, and formed in a cone shape to discharge entering exhaust gas while gathering the exhaust gas to the center. The present invention is constructed in a form where conic structures are arranged in multiple levels in a moving direction of exhaust gas and a multi-level extension form where a sound-absorbing area can be increased to greatly elongate the sound-absorbing area and save fuel costs since lightweight manufacture is possible.

an air exhauster for car

본 고안은 차량의 배기장치에 관한 것으로서, 더욱 상세하게는 차량의 엔진에 접속된 배기다기관을 통해 배출되는 배기가스가 촉매 컨버터를 거쳐 서브머플러로 유입될 때 낮아지는 배기압력을 보정하여 엔진의 출력을 상승시키는 한편, 다기통 기관에서 피스톤들이 상,하 왕복운동을 할 때 발생되는 정압과 부압의 차이로 인한 배기압력의 변화를 조정하여 차량의 주행성능을 높여줄 수 있도록 한 고안에 관한 것이다. The present invention relates to an exhaust device of a vehicle, and more particularly, to correct the exhaust pressure lowered when the exhaust gas discharged through the exhaust manifold connected to the engine of the vehicle flows into the sub-muffler through the catalytic converter, thereby outputting the engine. Meanwhile, the present invention relates to a device designed to improve driving performance of a vehicle by adjusting a change in exhaust pressure due to a difference between a positive pressure and a negative pressure generated when a piston moves up and down in a multi-cylinder engine. 전술한 본 고안은, 엔진(10)에 접속된 복수의 분기관(21)들이 하나로 합쳐지는 배기다기관(20)과; 백금, 팔라듐, 로듐으로 이루어진 금속망이 내장되어 일산화탄소, 탄화수소, 질소산화물을 환원시키는 촉매 컨버터(40)와; 소음을 감소시키고 매연을 정화하는 서브머플러(50) 및 메인머플러(60)가 관으로 연결된 차량의 배기장치에 있어서, 상기 촉매 컨버터(40)의 배출구 측에 형성된 제1플랜지(41)에 제2플랜지(72) 이음으로 결합되는 배기관(71)의 내부에는 나선형으로 가공된 와류용 익편(75)들이 삽입 고정되고, 익편(75)들의 중심 양측에는 배기가스의 분배 및 직진성을 유도하는 공기 확산구(75a)들이 돌출 형성되며, 방사형으로 형성된 각각의 익편(75)들 양단에는 용접용 접점(75b)들이 돌출 형성된 와류발생기(70)와; 상기 배기관(71) 타측에는 원통형 지지관(51)의 일측 입구(51a)가 용접되어 와류발생기(70)에 서브머플러(50)가 연결되고, 지지관(51)의 내부 중앙에는 통공(52a)들이 뚫려진 흡음관(52)이 장착되어 지지관(51)의 양측 입구(51a)와 출구(51b) 사이를 연결하며, 흡음관(52)의 외부에는 금속망(53)이 나선형으로 감겨져 용접으로 고정되고, 금속망(53)의 외부에는 불연성 섬유조직으로 구성된 흠음재(54)가 충진됨을 특징으로 하는 차량의 배기장치에 의하여 달성될 수 있는 것이다. The present invention described above includes an exhaust manifold 20 in which a plurality of branch pipes 21 connected to the engine 10 are combined into one; A catalytic converter 40 having a metal network composed of platinum, palladium, and rhodium to reduce carbon monoxide, hydrocarbons, and nitrogen oxides; In the exhaust device of the vehicle connected to the sub-muffler 50 and the main muffler 60 to reduce the noise and purify the smoke, the second flange to ...

Exhaust gas denitrifing reactor and the exhaust gas denitrifing system

The present invention relates to a reactor in which nitrogen oxides in incoming exhaust gases become nitrogen gas through denitrifying reaction with catalysts and an exhaust gas denitrifying system using the same, more specifically, to an exhaust gas denitrifying reactor and an exhaust gas denitrifying system using the same, which includes a housing forming the appearance; a heat-insulating and sound-absorbing unit, which is mounted on the inner wall of the housing, reduces the noise due to the incoming exhaust gases, and prevents heat from discharging from the housing to insulate the reactor; and a resonance unit resonating the incoming exhaust gases to reduce noises wherein making the reactor smaller is possible with the heat-insulating and sound-absorbing unit insulating the reactor as well as the resonance unit reducing noises.

Silencer

The present invention relates to a muffler, and more specifically, to a muffler which induces a flow of exhaust gas to increase a sound absorbing effect of noise generated according to the flow of exhaust gas. The muffler of the present invention includes: a housing having an inlet portion comprising a main inlet hole communicating with an exhaust pipe at the front thereof so that exhaust gas can be introduced into the housing and an outlet portion formed at the rear thereof with a main outlet hole communicating with the main inlet hole; a main pore member inserted into the housing to form a flow path communicating with the main inlet hole and the main outlet hole in the housing and formed on the outer peripheral surface thereof with a plurality of main pores communicating with the flow path; a main sound absorbing material filled between the main pore member and the housing to absorb noise according to the flow of the exhaust gas; and a flow inducing unit installed inside the main pore member to induce the flow of the exhaust gas so as to reduce noise.

Silencer

소음기는 유압장치(12)의 배출측과 연결되는 몸체(16)와, 디스크 형상의 지지부재(18) 사이에 지지되는 원통부재(20)를 포함한다. 그물 형상의 흡음기(22)가 상기 원통부재(20)의 외주 주위에 배치된다. 압력유체가 상기 몸체(16)로부터 상기 원통부재(20)의 내부로 흐르고, 상기 원통부재(20)에 형성된 복수의 제1 내지 제5배출홀(70a~70e)을 통해 상기 흡음기(22)를 향해 토출된다. 따라서, 상기 압력유체 내의 먼지가 상기 복수의 적층필터(80,82,84)로 형성된 상기 흡음기(22)에 의해 제거되고, 또한 상기 압력유체는 상기 흡음기(22)에 의해 배출노이즈가 흡수된 후에 외부로 배출된다. The muffler includes a body 16 connected to the discharge side of the hydraulic device 12 and a cylindrical member 20 supported between the disc-shaped support member 18. A mesh sound absorber 22 is disposed around the outer circumference of the cylindrical member 20. A pressure fluid flows from the body 16 into the cylindrical member 20 and through the plurality of first to fifth discharge holes 70a to 70e formed in the cylindrical member 20, the sound absorber 22. Is discharged toward. Therefore, dust in the pressure fluid is removed by the sound absorber 22 formed of the plurality of stacked filters 80, 82, and 84, and the pressure fluid absorbs the discharge noise by the sound absorber 22. Is discharged to outside. 소음기, 흡음기 Silencer

Device for reducing noise when the gas exits to the atmosphere

Exhaust muffler

An exhaust muffler for use with an internal combustion engine has at least one internal suppression chamber, at least one inlet pipe for receiving exhaust gases from the internal combustion engine, and at least one outlet pipe vented to atmosphere. The exhaust muffler comprises a plurailty of component units connected in series with each other and each having the internal suppression chamber. Each of the component units has a casing having an inner layer of a sound-absorbing material which defines the internal suppression chamber, and a connector pipe connected to and extending through the casing, the connector pipe having upstream and downstream ends projecting out of the casing, the connector pipe having at least one opening which opens into the internal suppression chamber. At least one of the component units is constructed to meet: ##EQU1## where V is the volume of the internal suppression chamber, l and S are the effective pipe length of and cross-sectional area of a flow passage in the main exhaust pipe extending from the internal suppression chamber of the at least one of the component units to one of the internal suppression chamber of the next component unit and the end vented to atmosphere, and C is the speed of sound.

Silencing method and device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Muffler unit for general-purpose engine

본 발명에 따른 범용 엔진용 머플러 유닛은, 미로형 소음(消音) 챔버(101, 102, 103)가 내부에 형성되어 있는 한편, 유입 파이프(85)가 내부에 배치되는 머플러(40)를 포함한다. 유입 파이프는 배기 파이프(43)를 통해 엔진의 배기 포트에 연결된 개방 단부(106)와, 이 개방 단부의 반대측의 폐쇄 단부(107)와, 개방 단부 근방에 마련되어, 유입 파이프의 내부 공간과 제1 소음 챔버(101)를 연결하는 천공부(108)를 구비한다. 유입 파이프의 폐쇄 단부는 외부 공기에 노출되어, 배기 가스가 유입 파이프의 폐쇄 단부에 충돌할 때에 냉각되게 한다. 범용 엔진, 머플러, 배기 파이프, 배기 가스 온도, 소음 챔버, 소음 감소 The muffler unit for a general-purpose engine according to the present invention includes a muffler 40 in which a labyrinth noise chamber 101, 102, 103 is formed inside, and an inlet pipe 85 is disposed therein. . The inlet pipe is provided near the open end 106 with the open end 106 connected to the exhaust port of the engine via the exhaust pipe 43, and with the closed end 107 opposite the open end, so that the internal space of the inlet pipe and the first A perforation portion 108 is provided to connect the noise chamber 101. The closed end of the inlet pipe is exposed to the outside air to allow the exhaust gas to cool when it impinges on the closed end of the inlet pipe. Universal engine, muffler, exhaust pipe, exhaust gas temperature, noise chamber, noise reduction

Noise reduction structure of vehicle exhaust gas

Gas flow silencer

A device (a silencer) for silencing a flow of gas, such as an exhaust gas, comprises at least one acoustic chamber ( 1, 2, 3 ) through-flowed by gas, at least one inlet pipe ( 6 ) for leading gas into the device and at least one pipe or passage ( 4, 12, 13 ) interconnecting two chambers or a chamber and an exterior environment or chamber and is designed with such features, including such cross-sectional area transitions between pipes or passages ( 4, 6, 12, 13 ) and the chambers ( 1, 2, 3 ) that the sound attenuation achieved by the device is high while the pressure drop across the silencer is low and that high attenuation at low characteristic frequencies of flow systems comprising the device are obtained. One or more diffusers ( 10 a, 12 a, 13 a ) for diffusing at least part of the gas flow, e.g., at the inlet to the chambers may be comprised in the device. One or more monolithic bodies or catalyzers may be comprised in the device. Devices with curved or helical passages (FIG. 5 ) allowing a low natural frequency and embodiments having resonance chambers (FIGS. 10 a, b ) attenuating at selected frequencies are disclosed. The device may be used for vehicles, including ships or boats and for stationary installations, such as power plants or stationary engines. A method for designing and/or dimensioning the device for a given desired sound attenuation over a given frequency spectrum at given spatial restrictions is disclosed.

Silencer and a method of operating a vehicle

A device for silencing a flow includes at least one acoustic chamber through-flowed by gas, e.g., exhaust gas, at least one inlet pipe and at least one pipe or passage interconnecting two chambers or a chamber and an exterior environment or chamber and is designed with such cross-sectional area transitions, between passages and the chambers that the sound attenuation achieved by the device is high while the pressure drop across the silencer is low and that high attenuation at low characteristic frequencies of flow systems are obtained. The device may contain at least one of diffusers, monolithic bodies and catalysts. The passages may be curved or helical so as to allow for a low natural frequency. Embodiments with resonance chambers attenuating at selected frequencies are disclosed. A method for operating a vehicle including a combustion engine and a silencing system is disclosed. The engine may be a spark ignited combustion engine or a gas turbine engine, and the method may include controlling at least one of fuel injection, excess air ration and spark timing, or adjusting vane guides in a turbine or a turbo charger.

In-line cable tie with fixed and hinged locking mechanism

인-라인 케이블 타이와 같은 원-피스 케이블 타이는 고정된 로킹 웨지 및 힌지구조로 된 로킹 웨지를 포함하는 하이브리드 로킹 매커니즘을 포함한다. 힌지구조로 된 로킹 웨지는 케이블 타이 헤드의 내부 통로의 길이방향 축을 따라 고정된 로킹 웨지로부터 측방으로 오프셋트될 수 있다. 바람직하게, 힌지구조로 된 로킹 웨지는 통로의 최상부 표면상에 위치하는 한편 고정된 로킹 웨지는 통로의 바닥부 표면상에 위치한다. 힌지구조로 된 로킹 웨지는 스트랩 인그레스 가까이에 위치될 수 있다. 케이블 타이는 바람직하게 나일론6.6으로 제조되고, 수요가 있는 응용분야에 적절한 낮은 스레드 삽입력 및 높은 루프 인장 강도 모두를 달성할 수 있다. 최대화된 강도는 고정 및 힌지구조로 된 로킹 웨지의 각각에 있는 복수의 티쓰의 사용으로 달성된다. 케이블 타이 헤드, 로킹 웨지, 스트랩 One-piece cable ties, such as in-line cable ties, include a hybrid locking mechanism that includes fixed locking wedges and hinged locking wedges. The hinged locking wedge can be laterally offset from the fixed locking wedge along the longitudinal axis of the inner passage of the cable tie head. Preferably, the hinged locking wedge is located on the top surface of the passage while the fixed locking wedge is located on the bottom surface of the passage. The hinged locking wedge can be positioned near the strap ingress. The cable tie is preferably made of nylon 6.6 and can achieve both low thread insertion force and high loop tensile strength suitable for demanding applications. Maximized strength is achieved with the use of a plurality of teeth in each of the locking and hinged locking wedges. Cable Tie Heads, Locking Wedges, Straps

Muffler for Automobile

본 고안은 자동차용 소음기에 관한 것으로, 좀더 상세히, 자동차용 소음기에 있어서, 양단에 엔드플레이트(121, 122)가 구비된 타원형 전부머플러 본체(101)와, 개방된 입구와 개방된 출구를 갖으며 그 입구(102-Inlet)는 자동차의 배기시스템과 연통되고 그 출구(102-Outlet)는 제1 공간(106)과 연통되는 흡입관(102)과, 바이패스파이프(109)와, 개방된 입구와 개방된 출구을 갖으며 제1 격벽(104)과 제2 격벽(105) 및 타측 엔드플레이트(122)를 관통하는 외부와 연통되는 배출관(103)이 구비되는 전부머플러(100)와; The present invention relates to an automobile silencer, and more particularly, in an automobile silencer, having an elliptical all-muffler body 101 having end plates 121 and 122 at both ends, an open inlet and an open outlet. The inlet 102-Inlet communicates with the exhaust system of the vehicle and the outlet 102-Outlet communicates with the intake pipe 102, the bypass pipe 109, the open inlet, which communicates with the first space 106. An all-muffler (100) having an open outlet and having a discharge pipe (103) communicating with the outside passing through the first and second partition walls (104), the second partition (105), and the other end plate (122); 양단에 엔드플레이트(221, 222)가 구비된 타원형 후부머플러 본체(201)와, 전부머플러(100)의 배출관 출구와 연통되는 흡입관(202)이 구비되고, 흡입관 삽입부(202d)가 내삽된 상태에서 일측이 격벽-1(204)을 관통하고 타측은 상기 타측 엔드플레이트(222)를 관통하는 배출관(203)이 구비되는 후부 머플러(200);를 포함하여 구성되는 것을 특징으로 하는 자동차용 소음기에 관한 것이다. An elliptical rear muffler main body 201 having end plates 221 and 222 at both ends and a suction tube 202 communicating with the outlet pipe outlet of the total muffler 100 are provided, and the suction tube inserting portion 202d is interpolated. The rear muffler 200 is provided with a discharge pipe 203 through which one side penetrates the partition wall-1 204 and the other end penetrates the other end plate 222; It is about. 소음기, 배기소음, 머플러 Silencer, Exhaust Noise, Muffler

Multi flow type-vehicle muffler having discharging heat device

The present invention relates to a multi-flow type vehicle muffler. More specifically, the invention discharges heat of the exhaust gas within the muffler and decreases exhaust pressure as well as discharge resistance. The invention increases engine output by increasing discharge pressure (transferring speed) of the discharge gas and by decreasing the load of the discharge stroke of an engine in accordance with fast output of discharge gas. The invention provides a multi-flow type vehicle muffler having a heat discharge device for outstanding ride comfort by significantly decreasing shift gear noise and vibration at the shift gear changing point and resonant noise when increasing a speed. The muffler installed on the exhaust system of a vehicle according to the present invention includes: a housing; at least one section member with multiple vents, which divides the inside of the housing into multiple sections; at least one pair of multi-oil path vent pipe which has vents communicating with the housing, and is placed with the housing in parallel; a heat resistant device installed to discharge the inner heat from the housing to the outside; an inhale part vent pipe with one side connected to the vent pipe of the upstream of the exhaust system and another separated end, connected to the inhale separated vent pipe, which is connected to the inhale side of multi oil path vent pipe; and a heat resistant device with one end connected to vent pipe of downstream of the exhaust system and another separated end, which is connected to the above pair of the multi oil path vent pipe, respectively.

Silencer for pneumatic device

A silencer for a pneumatic device is provided to improve the noise prevention effect by spirally forming a noise absorbing member and maximally extending the entire length of the noise absorbing member. A silencer for a pneumatic device includes an inner tub(11), an outer tub(12), and a noise absorbing member(22). One end of the inner tub is opened and the other end thereof is closed. The inner tub includes a transverse air guide unit connected to a discharge opening of the pneumatic apparatus at the opened or closed end. The outer tub is coaxially disposed on the outer side of the inner tub so that a space connected to the air guide unit is secured between the inner tub and the outer tub. The outer tub includes a discharge opening connected to the space at a position opposite to the air guide unit. The noise absorbing member is provided in the space between the inner tub and the outer tub.

Absorption/reflection silencer

An absorption silencer, particularly a multi-stage silencer, having a main silencer with a built-in resonator silencer connected upstream of a secondary silencer, the main silencer comprising a directly stressed resonator (8), tuned to low frequencies, with a resonator tube (7) projecting into the exhaust gas flow against the flow direction of the main gas flow. <IMAGE>

Muffler with scavenging promotion effect

ABSORPTION SOUND ABSORBER, PARTICULARLY FOR ROTARY PISTON BLOWER

AMORTISSEUR DE BRUIT A ABSORPTION, EN PARTICULIER POUR SOUFFLANTE A PISTON ROTATIF, CONSTITUE PAR UN BOITIER DANS LEQUEL EST INSTALLE UN CANAL D'ECOULEMENT DELIMITE AU MOINS EN PARTIE PAR UN MATERIAU ABSORBANT. LE BOITIER 1 EST PARALLELEPIPEDIQUE ET LE CANAL D'ECOULEMENT PRESENTANT UNE SECTION TRANSVERSALE RECTANGULAIRE APLATIE EST DISPOSE EN MEANDRES OU ZIG-ZAG DANS LE SENS VERTICAL. ABSORBING NOISE DAMPER, IN PARTICULAR FOR A ROTARY PISTON BLOWER, CONSTITUTED BY A BOX IN WHICH IS INSTALLED A FLOW CHANNEL BOUNDATED AT LEAST PART BY AN ABSORBENT MATERIAL. HOUSING 1 IS PARALLELEPIPEDIC AND THE FLOW CHANNEL WITH A RECTANGULAR CROSS-SECTION APLATIA IS ARRANGED IN MEANDERS OR ZIG-ZAG IN THE VERTICAL SENSE.

Silencer system partic for compressor exhausts - has twin chamber construction with sound absorbing linings and fillings

A silencer system partic. for compressor exhausts has the solid impingement ends of the first (4) and second (8) damping chamber coated with sound damping material (5) or filled with high frequency-sound absorbing material (9) respectively. The open end of the second damping chamber (8) lies in line with the central inlet (1) of the first chamber (4) and leads into another chamber (10) lined with sound absorbing material (11) which absorbs high frequency sound. The first sound damping chamber (4) is cylindrical and of similar diameter to the outlet of the second chamber (8) which is itself rotationally symmetrical. The disc supporting the first sound deadening chamber (4) has holes (7) adjacent its periphery to allow passage of gas to the second chamber (8).

Exhaust mufflers for motor vehicles

TURBOREACTOR SUSPENSION PYLONE REAR FAIRING

Ce carénage arrière de pylône comprend deux parois latérales, et une paroi de plancher ou de plafond formant bouclier thermique (13), dans lequel ledit bouclier comprend une partie acoustiquement absorbante (15). The rear pylon fairing includes two side walls, and a heat shield floor or ceiling wall (13), wherein said shield comprises an acoustically absorbing portion (15).

MUFFLER FOR GAS STREAMS

EXHAUST MUFFLER

SILENT DIFFUSER FOR GAS RELAXATION

SOUNDPROOF CHIMNEY FOR HOT GAS EJECTED FROM AN EXHAUST TUBE

MUFFLER FOR EXPLOSION ENGINES.

MUFFLER FOR INTERNAL COMBUSTION ENGINES

EXHAUST VOLUME HAVING A POROUS ACOUSTIC ABSORPTION WALL.

Silencers for internal combustion engines

Silent free exhaust for internal combustion or combustion engines

DEVICE FOR BREAKING FREE GAS EJECTED FROM AN EXHAUST TUBE

SILENCER OF EXHAUST SYSTEM AND METHOD OF ITS MANUFACTURE

1. Глушитель выхлопной системы, который содержит: ! блок камеры, имеющий впуск для приема выхлопных газов от двигателя и выпуск для выброса выхлопных газов из глушителя; ! поглощающий звук материал; ! держатель, который удерживает поглощающий материал у внутренней поверхности блока камеры и открывает поглощающий материал в открытую внутреннюю камеру блока камеры; ! причем блок камеры, поглощающий материал и держатель образуют открытую внутреннюю камеру, при этом открытая внутренняя камера обеспечивает площадь сечения потока выхлопного газа, для неограниченного протекания выхлопного газа от впуска до выпуска, которая больше чем площадь сечения потока выхлопного газа по меньшей мере на впуске или на выпуске. ! 2 Глушитель выхлопной системы по п.1, в котором открытая внутренняя камера обеспечивает площадь сечения потока выхлопного газа, которая больше чем площадь сечения потока выхлопного газа на впуске и больше чем площадь сечения потока выхлопного газа на выпуске. ! 3. Глушитель выхлопной системы по п.1, в котором блок камеры содержит первую торцевую крышку, имеющую впуск, вторую торцевую крышку, имеющую выпуск, и боковую стенку, которая идет между первой торцевой крышкой и второй торцевой крышкой, и в котором держатель удерживает поглощающий материал у внутренней поверхности боковой стенки и у внутренней поверхности по меньшей мере одной из первой и второй торцевых стенок. ! 4. Глушитель выхлопной системы по п.1, в котором держатель содержит сетку. ! 5. Глушитель выхлопной системы по п.4, в котором сетка имеет неплоский профиль поверхности. ! 6. Глушитель выхлопной системы по п.1, в котором держатель удерживает по РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 115 879 (13) A (51) МПК F01N 1/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011115879/06, 22.09.2009 (71) Заявитель(и): ПЕТШЕНИГ Дэн (CA) Приоритет(ы): (30) Конвенционный приоритет: 22.09.2008 US 61/098,937 (72) Автор(ы): ПЕТШЕНИГ Дэн (CA) (85) Дата ...

Muffler for gas flow.

Flowing gas silencer used for IC engines, gas turbine engines or compressors

The silencer comprises an elongated casing (2) with a tubular gas inlet (4) and outlet (6). A ferrule (6) housed in the casing is internally divided into two internal expansion chambers (8,9) into which emerge the inlet and outlet tubes. The expansion chambers form, with the casing, a longitudinal gas passage (7) between the inlet and outlet tubes. One of the walls of the longitudinal passage carries a coating of acoustic absorbing material (14A,14C). The acoustic absorbent (14A) is carried by the internal surface (2F) of the casing. The other absorbent coating (14C) is carried by the external surface (6H) of the ferrule. Supplementary acoustic absorbing coatings (14B) are located inside on the end walls (2A,2B) of the casing.

Muffler for Automobile

본 고안은 전부 머플러와 후부 머플러로 이루어진 자동차용 소음기에 있어서, 양단이 엔드플레이트(121, 122)로 마감되는 전부 머플러 본체(101)가 구비되고, 흡·배출관(103)이 타측 엔드플레이트(122) 등을 관통하도록 구비되고, 흡·배출관(103)의 상류측 외주면과 하류측 외주면에는 흡·배출관 구멍(103a, 103a')이 구비되고, 제1 공간(106) 및 제2 공간(107)에 흡음재(105)가 구비되고, 흡·배출관 구멍(103a, 103a')을 해 둘러싸는 스테인리스 메시(103b, 103b')가 구비되는 전부 머플러(100)와; 입체 공간 형상의 후부 머플러 본체(201) 내부에 격벽-1(206)과 격벽-2(207)가 소정간격 이격되어 구비되고, 흡입관(202)이 후부 머플러 본체(201)의 일측(201a)으로부터 격벽-1(206)을 관통하여 공간-2(210)까지 구비되고, 양단이 개방된 바이패스 파이프(204)가 격벽-1(206)과 격벽-2(207)를 관통함으로써 공간-1(209)과 공간-3(211)을 연통시키고, 상류에 공간-3(211)과 연통되는 U자형 연결관(213)이 구비되고 하류에 후부 머플러 본체의 타측(201b)의 외부로 연통되는 배출관(203)이 구비되는 후부 머플러(200);를 포함하여 구성되는 것을 특징으로 하는 자동차용 소음기. The present invention is a muffler for automobiles consisting of a muffler and a rear muffler, the muffler main body 101 is provided with both ends of the end plate (121, 122), the intake and discharge pipe 103 is the other end plate 122 Is provided so as to pass through), and the inlet / outlet tube holes 103a and 103a 'are provided in the upstream outer peripheral surface and the downstream outer peripheral surface of the intake / discharge pipe 103, and the 1st space 106 and the 2nd space 107 are provided. A muffler (100) provided with a sound absorbing material (105) and provided with stainless steel mesh (103b, 103b ') surrounding the sound absorbing and discharging pipe holes (103a, 103a'); The partition wall-1 206 and the partition wall-2 207 are provided in the three-dimensional space-shaped rear muffler main body 201 at predetermined intervals, and a suction pipe 202 is provided from one side 201a of the rear muffler main body 201. The bypass pipe 204 provided through the partition-1 206 to the space-2210 and open at both ends passes through the partition-1 206 and the partition-2 207 to allow the space-1 (206). 209 and the space-3 (211) communicate with each other, the U-shaped connecting pipe 213 is provided to communicate with the space-3 (211) upstream and downstream of the ...

Exhaust silencer

Improved sound-attenuating muffler having reduced back pressure

The present invention relates to an improvement muffler that includes an improved inlet configuration having first and second sequential chambers with a perforated central pipe passing longitudinally through a central region of both chambers for directing the exhaust gases into the third chamber in which the deflection element is deployed. Additionally, the partition separating the first and second chamber has a hole that enables some of the gas to pass from the first chamber into the second chamber not through the central pipe.

PROCESS AND APPARATUS FOR TREATING EXHAUST GASES FROM GAS TURBINES