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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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20-05-2014 дата публикации

Двигатель и система поглощения пульсаций

Номер: RU0000140638U1
Автор: Джеймс ЛИБИ, Росс Дикстра ПЁРСИФУЛЛ, Том Дж. ЛЕОНЕ
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Двигатель, содержащий:турбонагнетатель в сообщении по текучей среде с впускным каналом, включающий в себя компрессор и турбину; исистему поглощения пульсаций, присоединенную к впускному каналу в направлении по потоку в положении между компрессором и турбиной и временно увеличивающую объем впускного канала.2. Двигатель по п.1, в котором система поглощения пульсаций присоединена к впускному каналу ниже по потоку от компрессора в непосредственной близости к выпуску компрессора.3. Двигатель по п.2, дополнительно содержащий перепускной клапан, расположенный в впускном канале ниже по потоку от компрессора, при этом система поглощения пульсаций включает в себя перепускной канал с проточным клапаном, расположенным в нем и отводящим поток воздуха из области выше по потоку от перепускного клапана в область ниже по потоку от перепускного клапана.4. Двигатель по п.3, в котором проточный клапан является пластинчатым клапаном, расположенным в участке перепускного канала, который, по существу, параллелен впускному каналу.5. Двигатель по п.3, в котором перепускной клапан присоединен к системе управления, закрывающей перепускной клапан при низких числах оборотов двигателя для снижения пульсаций.6. Двигатель по п.5, в котором система управления открывает перепускной клапан при высоких числах оборотов двигателя.7. Двигатель по п.2, в котором система поглощения пульсаций является диафрагмой, которая расположена вровень со стенкой впускного канала.8. Двигатель по п.7, в котором диафрагма поглощает пульсацию посредством расширения за пределы стенки впускного канала и возвращается в ненапряженное состояние в отсутствие пульсаци РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F02B 77/00 (11) (13) 140 638 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2012145525/06, 25.10.2012 (24) Дата начала отсчета срока действия патента: 25.10.2012 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ЛЕОНЕ Том Дж. ...

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Номер записи: 1
22-01-2018 дата публикации

Глушитель шума выхлопных газов ДВС горно-шахтного оборудования

Номер: RU0000176490U1
Автор: Владимир Каурбекович Царикаев, Владимир Михайлович Заруцкий, Владимир Черменович Ревазов, Георгий Назирович Чегаев, Дина Эдуардовна Пилиева, Казбек Галаович Сабеев, Любовь Александровна Кебалова, Любовь Викторовна Касаева, Мадина Анатольевна Еналдиева, Николай Ефимович Цопанов, Светлана Черменовна Савхалова, Станислав Федорович Гобозов, Таймураз Муратович Тезиев
Принадлежит: Владимир Каурбекович Царикаев

Полезная модель относится к области технической акустики и может быть использована в автотракторной и горной промышленности для снижения шума системы выпуска ДВС. Задачей технического решения является снижение шума выхлопных газов. Устройство содержит внутреннюю и наружную камеры, расположенные одна в другой, две сплошные перегородки, входной и выпускной патрубки, закрепленные к боковым стенкам наружной камеры, отверстия для прохода газов, кольцо, установленное в наружной камере, при этом сплошные перегородки смонтированы во внутренней камере, между которыми размешена средняя перегородка с отверстием в центре, Устройство дополнительно снабжено двумя перегородками с отверстиями, размещенными в наружной камере. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 176 490 U1 (51) МПК F01N 1/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F01N 1/08 (2006.01) (21)(22) Заявка: 2017137337, 24.10.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 22.01.2018 (45) Опубликовано: 22.01.2018 Бюл. № 3 Адрес для переписки: 362039, Рес. Северная Осетия-Алания, г. Владикавказ, ул. Галковского, 233, кв. 54, Царикаеву В.К. (73) Патентообладатель(и): Царикаев Владимир Каурбекович (RU) 1 7 6 4 9 0 U 1 (56) Список документов, цитированных в отчете о поиске: RU 138053 U1, 27.02.2014. RU 2504667 C1, 20.01.2014. RU 2386040 C2, 10.04.2010. US 2013270034 A1, 17.10.2013. JP 2016041917 A, 31.03.2016. (54) Глушитель шума выхлопных газов ДВС горно-шахтного оборудования (57) Реферат: Полезная модель относится к области боковым стенкам наружной камеры, отверстия технической акустики и может быть использована для прохода газов, кольцо, установленное в в автотракторной и горной промышленности для наружной камере, при этом сплошные снижения шума системы выпуска ДВС. Задачей перегородки смонтированы во внутренней технического решения является снижение шума камере, между которыми размешена средняя выхлопных газов. Устройство ...

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Номер записи: 2
01-03-2012 дата публикации

Fuel rail for attenuating radiated noise

Номер: US20120048236A1
Автор: Chad D. Ormsbee, Jason Schwanke, John P. Casari, Venkatesh Kannan
Принадлежит: ROBERT BOSCH GMBH

A fuel rail includes an elongated tube having an inlet and a plurality of outlets. The elongated tube defines a fuel passageway for directing fuel toward the plurality of outlets. The fuel rail also includes a plurality of baffles positioned within the elongated tube to divide the fuel passageway into a plurality of chambers such that each outlet is positioned in one of the plurality of chambers. The plurality of baffles restricts fluid flow between adjacent chambers. A majority of the plurality of outlets are located essentially at an acoustic node of each corresponding chamber to reduce noise generated by the fuel rail.

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Номер записи: 3
15-03-2012 дата публикации

Exhaust Cooler

Номер: US20120060474A1
Автор: Brian G. Haupt, Clayton Smith, David W. Strombeck, Gary A. Salmonson, Kurt Butz, Lee Severtson, Mark E. Turpin, Shawn John Kipka
Принадлежит: Cummins Power Generation IP Inc

An internal combustion engine is coupled to an electric power generator. An exhaust manifold for the engine includes an exhaust gas conduit. A housing includes a catalyst in fluid communication with the conduit to receive exhaust produced by the engine. The catalyst is operable to reduce one or more constituents of the exhaust.

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Номер записи: 4
22-03-2012 дата публикации

Exhaust Injection Muffler

Номер: US20120067027A1
Автор: Brian G. Haupt, Clayton Smith, David W. Strombeck, Gary A. Salmonson, Kurt Butz, Lee Severtson, Mark E. Turpin, Shawn John Kipka
Принадлежит: Cummins Power Generation IP Inc

An internal combustion engine is coupled to an electric power generator. An exhaust manifold for the engine includes an exhaust gas conduit. A housing includes a catalyst in fluid communication with the conduit to receive exhaust produced by the engine. The catalyst is operable to reduce one or more constituents of the exhaust.

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Номер записи: 5
24-05-2012 дата публикации

Mixing pipe for scr mufflers

Номер: US20120124968A1
Автор: Panos Tamamidis
Принадлежит: CNH Amercia LLC

An apparatus for treating exhaust includes a housing having an inlet and an outlet, the housing defining a chamber. The inlet is in fluid communication with a source of exhaust. A mixing tube is connected to the inlet. The mixing tube has at least two branches and a plurality of apertures defined in a wall of the mixing tube. A substrate is disposed between the mixing tube and the outlet. The at least two branches converge at an end section of the mixing tube to form a mixing loop.

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Номер записи: 6
31-05-2012 дата публикации

Blower arrangement

Номер: US20120132479A1
Автор: Peter Fischer, Rudi Dittmar
Принадлежит: Individual

The invention relates to a blower arrangement for gas. The blower arrangement comprises a blower with a blower housing, at least one gas-inlet opening formed in the blower housing and gas-outlet opening, and at least one rotary-driven blower wheel arranged in the blower housing. Furthermore, the blower arrangement has at least one silencer device with at least one gas guiding element, wherein the gas-guiding element comprises a plurality of silencer openings and is designed as a gas guiding pipe. The gas guiding pipe varies its cross section along its longitudinal extension and has a wall, which is designed to be wave-like along the longitudinal extension of the gas guiding pipe. The silencer device also comprises at least one silencer chamber, which is in flow connection with the silencer openings and is arranged at least in sections laterally behind the gas guiding element.

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Номер записи: 7
07-06-2012 дата публикации

Exhaust apparatus for an internal combustion engine

Номер: US20120138384A1
Автор: Kazutoshi Wakatsuki
Принадлежит: Toyota Motor Corp

An exhaust apparatus is provided with an exhaust gas pipe for discharging to the atmosphere an exhaust gas discharged from an internal combustion engine. The exhaust gas pipe has an upstream open end connected to the sound deadening device positioned at the upstream side of an exhaust gas discharging direction, and a downstream open end through which the exhaust gas is discharged to the atmosphere. At least one of the exhaust gas upstream side and the exhaust gas downstream side of the exhaust gas pipe has a diameter expansion structure expanded in diameter toward one of the upstream open end and the downstream open end. The exhaust apparatus comprises a plate provided in the diameter expansion structure to be held in opposing relationship with the discharge direction of the exhaust gas and having an open portion formed to pass through the plate in the discharge direction of the exhaust gas.

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Номер записи: 8
05-07-2012 дата публикации

Exhaust pipe part and exhaust apparatus for internal combustion engine

Номер: US20120168245A1
Автор: Hideyuki Komitsu, Kazutoshi Wakatsuki, Nakaya Takagaki
Принадлежит: Toyota Motor Corp

A tail pipe part includes a tail pipe to constitute part of the tail pipe, and has a hollow member connected with the tail pipe in axial alignment with the tail pipe to be positioned within an area covering a node portion in a sound pressure distribution of an air column resonance caused in the tail pipe, and a short pipe included in the hollow member and having a predetermined length to extend in the axial direction of the tail pipe, the short pipe having an open end at the upstream end thereof and a closed end at the downstream end thereof, the closed end being constituted by a bottom plate positioned at almost the same position as that of the node portion in the sound pressure distribution of a standing wave formed by the air column resonance caused in the tail pipe.

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Номер записи: 9
26-07-2012 дата публикации

Motorcycle exhaust system structure including a resonator provided to an exhaust pipe

Номер: US20120186905A1
Автор: Satoshi Matsushima, Yusuke Inoue
Принадлежит: Honda Motor Co Ltd

In a motorcycle in which an internal combustion engine including a crankcase, a cylinder, and a cylinder head is attached to a vehicle body frame, an exhaust system includes an exhaust pipe connected to the cylinder head, and a resonator having a communication hole in communication with an inside of the exhaust pipe. The exhaust pipe is curved after being extended forward from the cylinder head and is then extended rearward in such a manner as to pass by a lateral side of the cylinder above the crankcase, while the resonator is arranged in a space between the exhaust pipe and the cylinder, and is joined to a side surface of the exhaust pipe facing inwardly of the motorcycle.

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Номер записи: 10
23-08-2012 дата публикации

Exhaust muffler for general-purpose engine

Номер: US20120210704A1
Автор: Atsushi Maruyama, Shoji Kawase, Toru Kawai
Принадлежит: Honda Motor Co Ltd

An exhaust muffler disposed in proximity to a cylinder of a general-purpose engine is provided, in which an exhaust muffler (M) for a general-purpose engine is formed from a muffler main body ( 15 ) connected to a cylinder ( 3 ) of a general-purpose engine (E) via an exhaust pipe ( 10 ) and disposed adjacent to the cylinder ( 3 ), a partition member ( 19 ) that divides the interior of the muffler main body ( 15 ) into a first muffler chamber ( 16 ) communicating with the exhaust pipe ( 10 ) and a second muffler chamber ( 17 ) communicating with an exhaust outlet ( 35 ) of the muffler main body ( 15 ), and an exhaust cooling pipe ( 31 ) exposed outside the muffler main body ( 15 ) while providing communication between the first muffler chamber ( 16 ) and the second muffler chamber ( 17 ). This enables exhaust gas to be cooled effectively by passing though the exhaust cooling pipe ( 31 ) when moving from the first muffler chamber ( 16 ) to the second muffler chamber ( 17 ), thus enhancing the muffling effect due to a reduction in the pressure of the exhaust gas.

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Номер записи: 11
04-10-2012 дата публикации

Automatic choke apparatus for engine

Номер: US20120247423A1
Автор: Akira Furuya
Принадлежит: Fuji Jukogyo KK

There is provided an automatic choke apparatus for an engine. A bimetal that is coupled to a choke valve of an intake system is provided in the vicinity of an outer wall face of a muffler. The muffler is divided into a first expansion chamber and a second expansion chamber across a partition plate. An exhaust hole that allows the expansion chambers to be communicated with each other is formed at the lower part of the partition plate. An exhaust gas is guided from the upstream first expansion chamber toward the downstream second expansion chamber through the exhaust hole. A bypass hole is formed at an upper part of the partition plate in such a manner that that the expansion chambers are communicated with each other as bypassing the exhaust hole. The bypass hole is open to the vicinity of the outer wall face opposite to the bimetal.

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Номер записи: 12
01-11-2012 дата публикации

Muffler assembly with mounting adapter(s) and process of manufacture

Номер: US20120273301A1
Автор: Daniel P. Jones, Karl Paul Maurer, Philippe Leboeuf
Принадлежит: EI Du Pont de Nemours and Co

A muffler assembly including one or more exhaust pipe(s), one or more mounting adapter(s) attached to the one or more exhaust pipe(s), a polymeric housing carried by one or more mounting adapter(s), a thermal insulating layer lining the housing interior surface and extending between the housing and one or more mounting adapter(s) at the housing-mounting adapter interface(s); wherein the thermal insulating layer includes a nonwoven fabric; wherein when the fabric is exposed to heat, the fabric increases in thickness to seal the muffler assembly at the housing-exhaust pipe interface and provides thermal insulation to the polymeric housing.

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Номер записи: 13
27-12-2012 дата публикации

Muffler assembly and method of making

Номер: US20120325578A1
Автор: Fabrice S. J-M Giaume
Принадлежит: EI Du Pont de Nemours and Co

A muffler 1 comprises a polymeric housing 3 and a support bracket 16 for mounting the muffler on a vehicle. The support bracket 16 is made of a polymer composite material comprising a polymer and fibres and is integrally formed with the housing 3. The muffler is made by a method comprising providing a support bracket 16 made of a polymer composite material comprising a polymer and fibres, and forming a polymer housing 3 by contacting molten polymer with the support bracket 16 to bond the support bracket to the housing.

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Номер записи: 14
03-01-2013 дата публикации

Suspension device for vehicle

Номер: US20130001384A1
Автор: Pär Karlsson, Ulric Karlsson
Принадлежит: Individual

A suspension device or bracket ( 3,19 ) for releasable fitting of one device to another at a vehicle, and having one bracket part ( 4,5,21 a ,21 b ) mounted on a vehicle and another one on the device to be connected to the vehicle. One locking element ( 6,20 a ,20 b ) being fitted to be activated from one side of the suspension device ( 3,19 ), and the other locking element ( 6,20 a ,20 b ) being fitted to be activated from the other side of the suspension device ( 3,19 ), the suspension device ( 3,19 ) being so arranged that only one locking element ( 6,20 a ,20 b ) need be released to take the suspension device ( 3,19 ) apart, irrespective of which locking element ( 6,20 a ,20 b ) is released.

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Номер записи: 15
10-01-2013 дата публикации

Anti-sound system for exhaust systems and method for controlling the same

Номер: US20130013147A1
Автор: Andre Mengel, Christof Luecking
Принадлежит: J Eberspaecher GmbH and Co KG

Based on sound measured in the interior of an exhaust system components of an ideal control signal are calculated, the components comprising sine wave oscillations comprising amplitudes phase-shifted by 90° relative to each other. From the amplitudes, an overall amplitude is calculated. If the overall amplitude is greater than a reference amplitude, calculating a correction factor from the reference amplitude and the overall amplitude, weighting the amplitudes with the correction factor to obtain weighted amplitudes, and forming the sum of the products of the weighted amplitudes with the associated sine wave oscillations and outputting the sum as control signal to a loudspeaker, follows. Otherwise, if the overall amplitude is smaller or equal to the reference amplitude, forming the sum of the products of the amplitudes of the ideal control signal with the associated sine wave oscillations and outputting the sum as control signal to the loudspeaker, follows.

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Номер записи: 16
07-03-2013 дата публикации

Hybrid valve for attenuation of low frequency noise

Номер: US20130056083A1
Автор: Joseph Callahan, Kwin Abram, Robin Willats
Принадлежит: Faurecia Emissions Control Technologies USA LLC

A hybrid valve assembly for an exhaust system includes an exhaust tube having a bore defining an exhaust flow path. A vane is mounted within the bore and is moveable between an open position and a closed position. A resilient member biases the vane toward the closed position. A valve actuator has an ON position where movement of the vane is actively controlled by the valve actuator and an OFF position where movement of the vane is passively controlled by exhaust gas flow.

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Номер записи: 17
21-03-2013 дата публикации

Intelligent Control of Exhaust Back-pressure Fuel-efficient Structure

Номер: US20130067886A1
Автор: TSAI Ming Huei
Принадлежит:

The present invention relates to a exhaust pipe structure with back-pressure controlling and fuel saving comprising: a barrel, with an inner tube; a back-pressure device, connected to said barrel, with a back-pressure pipe inside, said back-pressure pipe with one or more holes on it; and a rear tube, connected to said barrel, with an opening and silencer plug at appropriate place. When the engine of the car exhausting waste gas generated due to combustion, the flame companied with the waste gas could be resisted by the back-pressure device to avoid engine knock, the back-pressure device also could control and balance the flow rate when exhausting waste gas, so that it makes the engine working at low speed with high torque and speed, by this way, not only makes exhaust smoothly and reduces the burden when engine at high temperature, but also achieves the purpose of fuel saving. 1. A exhaust pipe structure with back-pressure controlling and fuel saving comprising:A barrel, with an inner tube;A back-pressure device, connected to said barrel, with a back-pressure pipe inside, said back-pressure pipe with one or more holes on it; and 'with above said design and structure, when the engine of the car exhausting waste gas generated due to combustion, the flame companied with the waste gas could be resisted by the back-pressure device to avoid engine knock, the back-pressure device also could control and balance the flow rate when exhausting waste gas, so that it makes the engine low speed with high torque and high speed with force, by this way, not only makes exhaust smoothly, makes the next intake process can quickly and fully inhale fresh air and reduces the burden when engine at high temperature, but also achieves the purpose of fuel saving.', 'A rear tube, connected to said barrel, with an opening and silencer plug at appropriate place;'}2. The exhaust pipe structure with back-pressure controlling and fuel saving as in claim 1 , wherein said barrel could comprise a ...

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Номер записи: 18
21-03-2013 дата публикации

Muffler system with protector for small-sized vehicle

Номер: US20130068554A1
Автор: Hiromi Shibata, Takahiro Yanagisawa, Yasuhiro Yokoyama, Yoshitaka Hayama
Принадлежит: Honda Motor Co Ltd

A muffler system can include an exhaust pipe configured to be connected to an exhaust port of an engine, and a muffler containing a catalyst. The muffler is configured to be connected to a downstream side of the exhaust pipe, and can include a first protector stay covering an upper surface of a high-temperature portion of the muffler. The first protector stay creates a front opening and a rear opening between an upper surface of the muffler and front and rear portions of the protector stay. A muffler protector is attached to the protector stay, the muffler protector being configured to cover an upper surface of the muffler.

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Номер записи: 19
23-05-2013 дата публикации

Q4 muffler assembly

Номер: US20130126266A1
Автор: Don Emler, George Luttig
Принадлежит: Individual

A system for improved exhaust evacuation from an internal combustion engine made up of a core which is surrounded by an outer casing, an elongated tube, and a perforated chamber made up of two cup shaped portions. The first cup shaped portion is connected to an outlet tube and the second cup shaped portion is connected to the elongated tube. The second cup shaped portion has holes around the connection and the first cup shape portion does not.

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Номер записи: 20
04-07-2013 дата публикации

Method of and apparatus for exhausting internal combustion engines

Номер: US20130167506A1
Автор: Dustin NORD, Thomas Shirra
Принадлежит: NG1 Tech LLC

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.

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Номер записи: 21
18-07-2013 дата публикации

Exhaust system of engine

Номер: US20130180798A1
Автор: Hirotsugu Ishizaki, Satoshi Matsushima, Seiichiro Eguchi, Tatsuya Sasaki, Yoshitaka Hayama
Принадлежит: Honda Motor Co Ltd

An exhaust system for an engine includes an exhaust pipe connected to an exhaust port of an engine and a muffler attached to the exhaust pipe and configured to reduce exhaust noise. The muffler includes an inner cylinder part connected to the downstream end of the exhaust pipe, an outer cylinder part configured to cover an outside of the inner cylinder part and noise absorbing materials disposed between the inner cylinder part and the outer cylinder part. A plurality of first communication holes providing communication between an inside and an outside of the inner cylinder part is formed in an upstream portion of the inner cylinder part. A plurality of second communication holes providing communication between the inside and the outside of the inner cylinder part is formed in a downstream portion of the inner cylinder part. Guide walls extend toward the inside of the inner cylinder part.

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Номер записи: 22
25-07-2013 дата публикации

EXHAUST DEVICE FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20130186062A1
Автор: KOCH Viktor, POMMERER Michael
Принадлежит: Eberspacher Exhaust Technology GmbH & Co. KG

An exhaust device () for an internal combustion engine () has an exhaust line () with a rear section X with two exhaust pipes () connected to an acoustic actuator () in a sound-transmitting manner. Better acoustic characteristics and increased number of noises audible from the outside is guaranteed by the exhaust pipes () being of different designs and/or by the actuators () being able to be actuated individually. A process for controlling the actuators () uses a control device () that actuates the actuators () individually to generate different acoustic signals () of the respective actuators (). A motor vehicle () is provided with such an exhaust device () with acoustic actuators () controlled by such a process. The motor vehicle () has additional actuators (), which are especially associated with an intake line () and are arranged in the interior of motor vehicle (). 1. An exhaust device for an internal combustion engine with an exhaust line which has a double-flow section at least in a rear section , the exhaust device comprising:a first exhaust pipe in the double-flow section;a second exhaust pipe in the double-flow section;a first acoustic actuator connected to the first exhaust pipe in a sound-transmitting manner; anda second acoustic actuator connected to the first exhaust pipe in a sound-transmitting manner, wherein:the first and second acoustic actuators are actuated individually or the exhaust pipes have different designs.2. An exhaust device in accordance with claim 1 , further comprising a control device individually actuating the first acoustic actuator and individually actuating the second acoustic actuator.3. An exhaust device in accordance with claim 2 , further comprising a time lag device claim 2 , wherein:the control device is connected to the first actuator via a first connection path;the control device is connected to the second actuator via a second connection path; andthe time lag device is provided in at least one of the first connection path ...

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Номер записи: 23
08-08-2013 дата публикации

Method for encasing a body of an exhaust gas system

Номер: US20130202887A1
Автор: Michael Weidner, Thomas Weidner
Принадлежит: TENNECO GMBH

A method for encasing a body of an exhaust gas system with a housing which is wound around the body. Using a winding method, the body is placed in a loop formed by a belt-shaped conveyor element that can be driven in a conveyor device, wherein the conveyor element is seated against the outer casing face at a wrapping angle u of at least 270 degrees. Starting with a first edge, the metal strip is then introduced in a conveyor device between the body and the conveyor element, is drawn into the gap between the body and the conveyor element and is bent around the body until the body is encased at least twice by the metal strip.

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Номер записи: 24
22-08-2013 дата публикации

PASSIVE VALVE AND RESONATOR ASSEMBLY FOR VEHICLE EXHAUST SYSTEM

Номер: US20130213731A1
Автор: Abram Kwin, Arbuckle Ivan, Egan James, Iskenderova Kamilla, Shaw Dennis
Принадлежит: Emcon Technologies, LLC, now Faurecia Emissions Control Technologies

An exhaust system includes first and second exhaust components with an inter-pipe that fluidly connects an outlet of the first exhaust component to an inlet of the second exhaust component. A passive valve is mounted within the inter-pipe. The second exhaust component defines an internal cavity that is at least partially packed with a high frequency absorption material and cooperates with the passive valve to effectively attenuate low and high frequency noise. 1. A vehicle exhaust system comprising:a first resonator having a first inlet and a first outlet;a second resonator positioned downstream of the first resonator, wherein the second resonator defines an internal cavity with a second inlet and a second outlet, the internal cavity being packed with a high frequency absorption material;an inter-pipe connecting the first outlet with the second inlet, wherein the inter-pipe comprises a sole exhaust gas flow path between the first outlet and the second inlet; anda passive valve mounted within the inter-pipe, the passive valve being mounted within the inter-pipe at a predetermined fixed distance from the second inlet of the second resonator.2. The vehicle exhaust system according to including a single pipe that extends from the second inlet to the second outlet claim 1 , the single pipe including at least one perforated section that is in contact with the high frequency absorption material. This application is a continuation of application Ser. No. 11/964,062, which claims priority to provisional application Ser. No. 60/989,508 filed on Nov. 21, 2007.The subject invention relates to a passive valve and resonator configuration in a vehicle exhaust system, and more particularly relates to a passive valve in combination with a packed resonator.Exhaust systems are widely known and used with combustion engines. Typically, an exhaust system includes exhaust tubes that convey hot exhaust gases from the engine to other exhaust system components, such as mufflers, resonators, ...

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Номер записи: 25
12-09-2013 дата публикации

Exhaust Valve Combined With Active Noise Control System

Номер: US20130233642A1
Автор: James Egan, Kwin Abram
Принадлежит: Faurecia Emissions Control Technologies USA LLC

A vehicle exhaust system includes at least one exhaust component that defines an exhaust passage from an engine to an exhaust outlet. An active noise attenuation component is associated with the exhaust component. A valve is positioned within the exhaust component downstream of the engine and upstream of the active noise attenuation component. The valve and active noise attenuation component cooperate with each other to control noise generated by the exhaust system.

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Номер записи: 26
12-09-2013 дата публикации

Frequency-Modifying Muffler

Номер: US20130233643A1
Автор: Butler Boyd L.
Принадлежит:

A muffler for raising the audible pitch of an internal combustion engine's exhaust note that includes an enclosed case having an inlet and an outlet, and a plurality of flow-directing components which are adapted to subdivide an inlet flow into a plurality of discrete interior flows, including a first interior flow providing the shortest flow length through the muffler between the inlet and the outlet, a second interior flow having a flow length at least about twice the length of the first interior flow, and one or more intermediate flows following by-pass passages to split off from the second interior flow between the inlet and the outlet and having flow lengths between the flow lengths of the first and second flows. 1. A muffler for raising an audible pitch of an internal combustion engine's exhaust note , comprising:an enclosed case having an inlet and an outlet; and a first discrete interior flow passage providing the shortest flow length through the enclosed case between the inlet and the outlet;', 'a second discrete interior flow passage between the inlet and the outlet and having a flow length at least about twice the flow length of the first interior flow passage; and', 'at least one discrete intermediate interior flow passage following a by-pass passage, and wherein the at least one intermediate interior flow passage splits off from the second interior flow passage between the inlet and the outlet., 'a plurality of flow-directing components adapted to subdivide an inlet flow into a plurality of discrete interior flows comprising2. The muffler of claim 1 , wherein the inlet is in an inlet end of the enclosed case and the outlet is in an outlet end of the enclosed case; wherein the first interior flow passage follows a substantially-direct passage between the inlet and the outlet; wherein the second interior flow passage follows a tortuous passage between the inlet and the outlet; and wherein the at least one intermediate interior flow passage is at least one ...

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Номер записи: 27
19-09-2013 дата публикации

Power cutter

Номер: US20130239940A1
Автор: Anders Lundgren, Hans Petersson, Mattias Holmdahl
Принадлежит: HUSQVARNA AB

A power cutter powered by a single cylinder internal combustion engine, the power cutter including: a tool unit having at least one tool, which can be rotated about an axis of rotation; a drive unit including an engine, the engine including an engine cylinder having a cylinder bore centerline, a piston, a crankshaft with a crankshaft axis of rotation and a flywheel, the crankshaft running in a counter clockwise direction as seen towards the flywheel; a cutter arm attached to the drive unit in its inner end and its outer end carrying the tool unit, a centerline of the cutter arm essentially follows a connection line between the axis of rotation of the tool and the axis of rotation of the crankshaft.

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Номер записи: 28
26-09-2013 дата публикации

Power cutter

Номер: US20130247896A1
Автор: Lars Andersson, Ove Donnerdal
Принадлежит: HUSQVARNA AB

A power cutter including a tool unit, an internal combustion engine having an engine cylinder with cylinder bore having a center line and an exhaust port formed in the engine cylinder, a crankshaft, crankcase and an assembly for supplying air and fuel to the engine, and a muffler accommodated in a close and side by side relationship with the engine cylinder, the muffler includes an exhaust gas inlet and an exhaust gas outlet, such that the exhaust gas inlet is adapted to receive the exhaust gases from an exhaust port of the engine cylinder, wherein the exhaust gas inlet is provided on the top or bottom or local side of the muffler.

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Номер записи: 29
26-09-2013 дата публикации

SILENCER INCORPORATING ELONGATED MEMBERS

Номер: US20130248282A1
Автор: Cheng Chunyuen R., Nathan Thomas H.
Принадлежит: Aero Systems Engineering, Inc.

A matrix or array of elongated tubular members, each member being formed by spirally winding a piece or pieces of material into a generally cylindrical shape, wherein the matrix or array is mounted in an airflow to reduce the noise associated with and/or produced by the airflow. 1. A device for reducing noise , the device comprising a plurality of elongated , generally tubular members arranged in an airflow and positioned relative to each other and the airflow to reduce the noise generated by the airflow and to provide as uniform an airflow as possible.2. The device according to claim 1 , wherein the tubular members are each a spiral wound claim 1 , crimped seam member.3. The device according to claim 1 , further comprising a cap at an end of the tubular members claim 1 , the cap adapted to support the respective member in the airflow.4. The device according to claim 3 , wherein the cap is spun claim 3 , formed or punched.5. The device according to claim 3 , wherein the cap is flat claim 3 , hemispherical or otherwise suitably shaped.6. The device according to claim 5 , further comprising a reinforcing disk inside the cap.7. The device according to claim 2 , wherein the tubular members are generally parallel and arranged in a matrix.8. The device according to claim 7 , wherein the members are generally cylindrical.9. The device according to claim 7 , wherein the matrix has a central region and a periphery claim 7 , the members in the central region being cylindrical and the members adjacent to the periphery being oval or semi-circular.10. A method for reducing noise included in or produced by an airflow claim 7 , the method comprising the steps of:providing a plurality of elongated, tubular, generally cylindrical members, each member formed by winding a length of material in a spiral and joining the adjacent edges together;arranging the members in an array wherein the members are generally parallel; andpositioning the array in the airflow.11. The method of claim 10 ...

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Номер записи: 30
17-10-2013 дата публикации

SILENCING APPARATUS FOR VEHICLE

Номер: US20130270034A1
Автор: Komitsu Hideyuki, Takagaki Nakaya, Wakatsuki Kazutoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A silencing apparatus for a vehicle includes: a muffler () having a flattened sectional shape; an inlet pipe (); an outlet pipe (); and at least one partition plate () that divides the inside of the muffler () into a plurality of sound-deadening chambers. Each of the at least one partition plate () has at least one communication hole. Within the muffler (), at least one among an opening of the inlet pipe (), an opening of the outlet pipe (), and the at least one communication hole is disposed at a position that is apart by a length equal to a half of the width of the muffler () from one end of the muffler () in the width direction thereof, and at least one among them is disposed at a position that is apart by a length equal to a quarter of the width from one end of the muffler () in the width direction. 19.-. (canceled)10. A silencing apparatus for a vehicle , comprising:a muffler having a flattened sectional shape in which a width is greater than a height;an inlet pipe through which exhaust gas flows into an inside of the muffler;an outlet pipe through which the exhaust gas flows out of the inside of the muffler; andat least one partition plate that divides the inside of the muffler into a plurality of sound-deadening chambers, whereineach of the at least one partition plate has at least one communication hole that extends through the partition plate, andwithin the muffler, at least one among an opening of the inlet pipe, an opening of the outlet pipe, and the at least one communication hole is disposed at a position that is apart by a length equal to a half of the width of the muffler from one end of the muffler in a width direction of the muffler, and at least one among the opening of the inlet pipe, the opening of the outlet pipe, and the at least one communication hole is disposed at a position that is apart by a length equal to a quarter of the width of the muffler from one end of the muffler in the width direction, whereineach of the opening of the inlet pipe ...

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Номер записи: 31
07-11-2013 дата публикации

AUTOMATIC CHOKE FOR AN ENGINE

Номер: US20130291845A1
Автор: Benjamins Jean-Paul, Branski David W., Drew Christopher J., Gartzke Chad J., Mayer William H., Miller Benjamin R., Traynor Dawn N., Zimmerman Gene
Принадлежит:

An internal combustion engine includes a muffler configured to reduce exhaust gas noise. The muffler has a housing defining an interior and an exterior. A choke valve is configured to control a flow of air in a carburetor and a thermally responsive element is coupled with the choke valve and configured to move the choke valve in response to a temperature change in the thermally responsive element. A thermally conductive member has a first portion positioned in the interior of the muffler and extending through the muffler housing to the exterior of the muffler, and a second portion positioned exteriorly of the muffler and coupled to the thermally responsive element. The thermally conductive member is configured to conduct heat from exhaust gases within the muffler to the thermally responsive element. 1. An internal combustion engine , comprising:a muffler configured to reduce exhaust gas noise, the muffler having a housing defining an interior and an exterior;a choke valve configured to control a flow of air in a carburetor;a thermally responsive element coupled with the choke valve and configured to move the choke valve in response to a temperature change in the thermally responsive element;a thermally conductive member having a first portion positioned in the interior of the muffler and extending through the muffler housing to the exterior of the muffler, and having a second portion positioned exteriorly of the muffler and coupled to the thermally responsive element, the thermally conductive member configured to conduct heat from exhaust gases within the muffler to the thermally responsive element.2. The internal combustion engine of claim 1 , wherein the first portion and second portion substantially form a right angle.3. The internal combustion engine of claim 1 , wherein the first portion is positioned proximate an inlet to the muffler.4. The internal combustion engine of claim 1 , wherein the muffler includes a first clamshell section and a second clamshell ...

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Номер записи: 32
16-01-2014 дата публикации

EJECTOR

Номер: US20140014746A1
Автор: Watanabe Tomohiro
Принадлежит: KOGANEI CORPORATION

An ejector (), which built in an ejector housing hole (), comprises: a nozzle () for diffusing and ejecting compressed air from an air supply port (); and a diffuser () formed with an ejection port () for discharging air ejected from the nozzle () and air flowing in from a suction port (). A muffler main body () attached to an ejector block () is formed with a silencing chamber (), and a distal-end wall portion () of the muffler main body () is formed with an exhaust port () facing the ejection port (). It is possible to achieve the silencing effect while ensuring the vacuum degree of negative-pressure air and the intake flow rate by discharging air from the exhaust port (). 1. An ejector comprising:an ejector block formed with an ejector housing hole which communicates with an air supply port at a base end thereof;a nozzle arranged on a base end side of the ejector housing hole, and adapted to focus compressed air from the air supply port, diffuse and eject the focused air;a diffuser arranged on a downstream side of the nozzle in the ejector housing hole, the diffuser being formed with an ejecting port for discharging air ejected from the nozzle and air flowed from a suction port;a muffler main body having a cylindrical portion covering the ejecting port and a distal-end wall portion integrally formed with one end of the cylindrical portion, the muffler main body is formed with a silencing chamber into which air discharged from the ejecting port flows;a cylindrical silencing member arranged in the cylindrical portion; andan exhaust opening provided so as to face the ejecting port at the distal-end wall portion and coaxially aligned with the ejecting port.2. The ejector according to claim 1 , wherein a silencing gap is formed between the silencing member and an inner circumferential surface of the cylindrical portion.3. The ejector according to claim 1 , wherein the nozzle is within the range of 0.5 to 1.0 mm in inner diameter claim 1 , and the silencing member is ...

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Номер записи: 33
23-01-2014 дата публикации

RESONATOR SILENCER FOR A RADIAL FLOW MACHINE, IN PARTICULAR FOR A RADIAL COMPRESSOR

Номер: US20140020975A1
Автор: König Sven
Принадлежит:

A volute for a radial turbomachine is proposed. The turbomachine includes a radial compressor or a radial turbine. The volute is in particular for a radial compressor. The volute has a substantially annular cavity which is delimited at least by a first radial side surface. At least one substantially annularly circumferential groove is formed in the side surface. 110.-. (canceled)11. A diffuser , comprising:a substantially annular hollow chamber being delimited at least by one first radial side surface,wherein the at least one first radial side surface comprises at least one substantially annularly encircling, empty circumferential groove which forms an acoustic resonator,wherein a dimensioning of the at least one substantially annularly encircling, empty circumferential groove defines a natural frequency and/or an eigenform of the substantially annularly encircling, empty circumferential groove, andwherein the natural frequency and/or the eigenform of the at least one substantially annularly encircling, empty circumferential groove is tuned to a frequency to be reflected and/or to a sound wave to be reflected.12. The diffuser as claimed in claim 11 , wherein the at least one first radial side surface comprises multiple substantially annularly encircling claim 11 , empty circumferential grooves which are in particular situated concentrically with respect one another and have different dimensions comprising different depths and/or widths respectively.13. The diffuser as claimed in claim 11 , wherein the annular hollow chamber is delimited by a second radial side surface which is situated axially opposite the first radial side surface claim 11 , and wherein the second radial side surface comprises a substantially annularly encircling claim 11 , empty circumferential groove or multiple substantially annularly encircling claim 11 , empty circumferential grooves situated concentrically with respect to one another.14. The diffuser as claimed in claim 11 , wherein the one ...

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Номер записи: 34
13-02-2014 дата публикации

EXHAUST MANIFOLD FOR PREVENTING CONDENSATE AND GAS LEAKAGE IN ENGINE

Номер: US20140041372A1
Автор: Cha Soon Chang, KIM Kwang Soo
Принадлежит: DOOSAN INFRACORE CO., LTD.

The present invention relates to an exhaust manifold for preventing condensate and gas leakage in an engine, and more particularly, to an exhaust manifold for preventing condensate and gas leakage in an engine, capable of preventing peripheries of the engine from being contaminated by condensate and/or exhaust gas leaking from interiors of a plurality of exhaust manifolds to the outside through connection portions of the exhaust manifolds. 1. An exhaust manifold for preventing condensate and gas leakage in an engine , the exhaust manifold comprising:one side main tube having a connection portion having sealing grooves which are formed on at least one place of an outer circumference portion along a circumference thereof; andan other side main tube having a corresponding connection portion which accommodates the connection portion of the one side main tube,wherein at least one seal ring is fitted into each of the sealing grooves of the connection portion of the one side main tube so as to prevent leakage of condensate and/or exhaust gas, anda swirl groove is formed in an outer radial direction in an inner circumference of the corresponding connection portion of the other side main tube, which is adjacent to a front end portion of the connection portion of the one side main tube.2. The exhaust manifold of claim 1 , wherein an inclined surface claim 1 , which guides the condensate and/or the exhaust gas toward a central side of the connection portion of the one side main tube claim 1 , is further formed on the front end portion of the connection portion of the one side main tube along a circumference of the front end portion.3. The exhaust manifold of claim 1 , wherein the swirl groove is formed to have a circular or elliptical shape having a concave curved surface claim 1 , and an inclined surface claim 1 , which guides the condensate and/or the exhaust gas toward a central side of the connection portion of the one side main tube claim 1 , is further formed on the ...

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Номер записи: 35
13-02-2014 дата публикации

MUFFLER FOR VEHICLE

Номер: US20140041959A1
Автор: WON Taeho
Принадлежит: HYUNDAI MOTOR COMPANY

A muffler for a vehicle may include a main muffler in front of a rear suspension when viewing from a front of the vehicle, a plurality of baffles dividing an interior of the main muffler into a plurality of chambers, an inlet pipe installed substantially at an center of one side of the main muffler and passing through the plurality of the baffles, a discharge pipe installed at a lower side of the other side of the main muffler and passing through the plurality of the baffles, wherein the discharge pipe exhausts an exhaust gas flowed in the inlet pipe to an exterior of the main muffler, an intermediate pipe in fluidic communication with an outlet port of the inlet pipe, and a variable valve selectively opened or closed in response to a back pressure of the exhaust gas from an outlet port of the intermediate pipe. 1. A muffler for a vehicle , comprising:a main muffler disposed in front of a rear suspension when viewing from a front of the vehicle;a plurality of baffles dividing an interior of the main muffler into a plurality of chambers;an inlet pipe installed substantially at an center of one side of the main muffler and passing through the plurality of the baffles;one discharge pipe installed parallel to the inlet pipe in the main muffler and passing through the plurality of the baffles, wherein the discharge pipe is provided for exhausting an exhaust gas flowed in the inlet pipe to an exterior of the main muffler;an intermediate pipe installed in the main muffler and having an inlet port disposed in a chamber that is the same as an outlet port of the inlet pipe; anda variable valve selectively opened or closed in response to a back pressure of the exhaust gas from an outlet port of the intermediate pipe;wherein the plurality of chambers includes first, second, third, fourth and fifth chambers that are partitioned by means of first, second, third and fourth baffles;wherein the inlet pipe includes a first array of punched holes, a second array of punched holes and a ...

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Номер записи: 36
27-02-2014 дата публикации

Muffler assembly with siphon tube

Номер: US20140054101A1
Автор: Bert Möhlmann, Charu S. Hayes, Christina Zhang, Qiu Er Chen, Wenshui Wang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A muffler assembly for a vehicle includes a housing at least partially defining an internal cavity and having an inlet and an outlet. The muffler assembly includes an outlet pipe that has an inlet end open to the internal cavity and an outlet end open at the outlet of the housing. A siphon tube is in the internal cavity and has an inlet opening adjacent an inner surface of the housing and an outlet opening in fluid communication with the outlet pipe between the inlet end and the outlet end of the outlet pipe. The siphon tube is configured to remove condensate from the internal cavity when a predetermined pressure differential is established between the inlet opening and the outlet opening.

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Номер записи: 37
06-03-2014 дата публикации

Variable Frequency Helmholtz Resonator

Номер: US20140060961A1
Автор: Chen Quiang
Принадлежит: MANN+HUMMEL FILTER (SHANGHAI) CO. LTD.

A variable frequency Helmholtz resonant cavity includes a Helmholtz resonant cavity body, two Helmholtz resonant cavity pipes with different cross-sectional areas and lengths and a control valve plate. The Helmholtz resonant cavity body is connected with the main pipe of the intake system via the Helmholtz resonant cavity pipes, and the control valve plate is disposed at the location where the two Helmholtz resonant cavity pipes meet. 1. A variable frequency Helmholtz resonant cavity resonator , comprising:a Helmholtz resonant cavity body enclosing a resonant cavity therein;two Helmholtz resonant cavity pipes;wherein each pipe connected at first end to an automotive intake system,wherein each pipe is connected at an opposing second end to the resonant cavity in the body;wherein a first one of said two Helmholtz resonant cavity pipes has a first length along its length from its first end to its opposing second end;wherein a second one of said two Helmholtz resonant cavity pipes has a second length along its length from its first end to its opposing second end;wherein the first one of said two Helmholtz resonant cavity pipes has an interior air channel with a first cross sectional area;wherein the second one of said two Helmholtz resonant cavity pipes has an interior air channel with a second cross sectional area;wherein said first and second cross sectional areas are different;wherein said first and second lengths are different;a control valve plate arranged at the second ends of the first and second Helmholtz resonant cavity pipes, the control valve plate operable between a first position and a second position;wherein in the first position, the control valve plate closes the air channel of the first Helmholtz resonant cavity pipe and opens the air channel of the second Helmholtz resonant cavity pipe to communicate with the resonant cavity of the Helmholtz resonant cavity body;wherein in the second position, the control valve plate closes the air channel of the ...

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Номер записи: 38
06-03-2014 дата публикации

EXHAUST SYSTEM FOR A MOTORCYCLE

Номер: US20140060963A1
Автор: Katsukawa Yota, Matsumoto Satoshi, ONO Masashi, Tsubone Toshiyuki
Принадлежит: KAWASAKI JUKOGYO KABUSHIKI KAISHA

A motorcycle includes an exhaust chamber (), having defined therein a chamber expansion compartment () for exhaust gases, and a muffler () having defined therein muffler expansion compartments () for the exhaust gases on a downstream side of the exhaust chamber (). Respective outer peripheral walls of the exhaust chamber () and the muffler () are formed by a common casing (). The exhaust chamber () is positioned intermediate between a motorcycle combustion engine (E) and a motorcycle rear wheel (). The exhaust chamber () has an inner side surface positioned laterally inwardly of an outer side surface () of the rear wheel () in a motorcycle body widthwise direction, and the muffler () has a rear portion positioned laterally outwardly of the rear wheel (). 1. A motorcycle of a type using a combustion engine as a drive source , which motorcycle comprises:an exhaust chamber having defined therein a chamber expansion compartment for exhaust gases and also having a first outer peripheral wall; anda muffler having defined therein a muffler expansion compartment for the exhaust gases and also having a second outer peripheral wall, the muffler being positioned downstream of the exhaust chamber with respect to the direction of flow of the exhaust gases, whereinthe exhaust chamber is positioned between the combustion engine and a rear wheel;the first and second outer peripheral walls of the exhaust chamber and the muffler are formed by a common casing;a partition wall divides the casing in an anteroposterior direction to define the chamber expansion compartment, which is positioned forwardly of the partition wall, and the muffler expansion compartment which is positioned rearwardly of the partition wall, a rear end shape of the chamber expansion compartment and a front end shape of the muffler expansion compartment being identical with each other;the exhaust chamber has an inner side surface that is positioned inwardly of an outer side surface of the rear wheel in a motorcycle ...

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Номер записи: 39
13-03-2014 дата публикации

Noise attenuation device and fluid coupling comprised thereof

Номер: US20140069737A1
Автор: Lamar Edward May, Matthew Charles Liveley
Принадлежит: Dresser LLC

Embodiments of a noise attenuation device comprise a plurality of stacked plates that form channels to reduce energy in a flow of working fluid that transits the noise attenuation device. In one embodiment, the stacked plates include plates having openings in different patterns. Orientation of the plates align the patterns in a housing to form the channels. In one example, the plates are disposed in a fluid coupling (e.g., a valve and/or flow regulator) that includes a throttling element. The plates are spaced apart from the throttling element, thereby permitting the working fluid to flow through all of the channels whether the throttling element is fully or partially open.

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Номер записи: 40
13-03-2014 дата публикации

Device and method for manipulating the exhaust outlet noise of a motor vehicle

Номер: US20140069739A1
Автор: Christian Emile Marie Carme, Daniel Joseph Maguire, Juergen Schorn
Принадлежит: Dr Ing HCF Porsche AG, TECHNOFIRST

A device for manipulating the exhaust outlet noise of a motor vehicle, having an exhaust flap which can be positioned in an exhaust pipe and which can be displaced in oscillatory fashion about an exhaust flap basic position in a defined angle range about the exhaust flap basic position in order to manipulate the exhaust outlet noise, wherein the exhaust flap basic position can be actively adjusted as a function of an engine rotational speed and/or an engine load, and wherein the angle range can be actively adjusted as a function of a frequency to be eliminated or attenuated, or a frequency to be generated or enhanced, of the exhaust outlet noise.

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Номер записи: 41
03-04-2014 дата публикации

EXHAUST SYSTEM OF SADDLE-RIDE TYPE VEHICLE

Номер: US20140090924A1
Автор: HAYAMA Yoshitaka, UZAWA Yuki
Принадлежит: HONDA MOTOR CO., LTD.

An exhaust system of a saddle-ride type vehicle includes an end cap and a muffler close to each other to achieve uniformity therebetween and which is capable of preventing the occurrence of a knocking sound. The exhaust system of a saddle-ride type vehicle includes a muffler connected to an exhaust pipe for discharging exhaust of an engine E and an end cap is attached to a muffler rear end portion. In the end cap, an insertion portion thereof is inserted into and held by an end cap inserted portion provided in the muffler rear end portion, and multiple protruding portions are formed on an outer surface of the insertion portion at a predetermined interval in a circumferential direction of the outer surface. The multiple protruding portions come in contact with an inserted portion inner peripheral wall surface of the end cap inserted portion. 1. An exhaust system of a saddle-ride vehicle that includes a tubular muffler connected to an exhaust pipe for discharging exhaust of an engine and including an end cap attached to a muffler rear end portion of the muffler , comprising:an insertion portion at an front end side of the end cap, said insertion portion being inserted into and held by an end cap inserted portion provided in the muffler rear end portion;a plurality of protruding portions protruding outward in a radial direction, said plurality of protruding portions being formed on an outer surface of the insertion portion, at a predetermined interval in a circumferential direction of the outer surface; andthe protruding portions come in contact with an inserted portion inner peripheral wall surface of the end cap inserted portion.2. The exhaust system of a saddle-ride vehicle according to claim 1 , wherein the protruding portions are provided at three positions at substantially equal intervals in the circumferential direction.3. The exhaust system of a saddle-ride vehicle according to claim 1 , wherein the end cap is attached to a boss portion provided in the muffler ...

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Номер записи: 42
03-04-2014 дата публикации

EXHAUST SYSTEM OF SADDLE-RIDE TYPE VEHICLE

Номер: US20140090926A1
Автор: UZAWA Yuki
Принадлежит: HONDA MOTOR CO., LTD.

An exhaust system of a saddle-ride type vehicle includes engagement units to improve the exterior design of a muffler cover and a muffler cover for an excellent appearance that can be easily and reliably attached. A cylindrical muffler is connected to an exhaust pipe for exhausting exhaust from an engine E. A front cap is provided on a front side of a muffler body portion. A muffler cover covers part of the exhaust pipe and the front cap. In the exhaust system, multiple engagement units respectively include multiple engagement receiving parts and multiple engagement claw parts. The engagement receiving parts are provided on an outer surface wall of the front cap with an interval therebetween in a circumferential direction about a muffler center axis of the muffler. The engagement claw parts corresponding respectively to the multiple engagement receiving parts and are disposed on a back surface of the muffler cover. 1. An exhaust system of a saddle-ride vehicle that includes a cylindrical muffler connected to an exhaust pipe for exhausting exhaust from an engine and provided with a front cap on a front side of a muffler body portion and which has a muffler cover covering part of the exhaust pipe and the front cap , comprising:a plurality of engagement units formed respectively of a plurality of engagement receiving parts and a plurality of engagement claw parts;said engagement receiving parts being provided on an outer surface wall of the front cap with an interval therebetween in a circumferential direction about a muffler center axis of the muffler;said engagement claw parts corresponding respectively to the plurality of engagement receiving parts and being disposed on a back surface of the muffler cover.2. The exhaust system of a saddle-ride vehicle according to claim 1 , and further including insertion openings extending along the muffler center axis in a vehicle front-rear direction claim 1 , said insertion opening being provided in the respective engagement ...

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Номер записи: 43
01-01-2015 дата публикации

SYSTEMS AND METHODS FOR ACOUSTIC RESONANCE MITIGATION

Номер: US20150001003A1
Автор: Cohen Robert L., Lan Justin Honshune, Vogel Stuart William
Принадлежит: The Boeing Company

Systems and methods for acoustic feedback or resonance mitigation are provided. The systems and methods include an exhaust acoustic noise reduction apparatus having an exhaust port comprising an exhaust aperture, a first vane extending at least partially across the exhaust aperture, and a second vane extending at least partially across the exhaust aperture and intersecting the first vane, such that the first and second vanes are oriented to interfere with formation of an acoustic feedback loop and reduce an acoustic noise signature of the exhaust port.

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Номер записи: 44
07-01-2016 дата публикации

ENGINE-EXHAUST-SYSTEM APPARATUS AND PACKAGE-TYPE ENGINE ELECTRIC POWER GENERATOR

Номер: US20160003116A1
Автор: KAWANO Tatsuya, Murai Susumu, Terada Ruriko
Принадлежит:

Disclosed is an engine-exhaust-system apparatus including: a main body that reduces noise generated by exhaust gas; and an exhaust outlet tube that includes an insertion section inserted into the main body, exhaust gas in the main body being discharged outside via the exhaust outlet tube, wherein the insertion section has an open end with a brim portion that spreads beyond a tube diameter of the insertion section. 1. An engine-exhaust-system apparatus , comprising:a main body that reduces noise generated by exhaust gas; andan exhaust outlet tube that includes an insertion section inserted into the main body,exhaust gas in the main body being discharged outside via the exhaust outlet tube,wherein the main body is internally separated by a partition wall into an exhaust outlet chamber where the exhaust outlet tube is disposed and an exhaust inlet chamber where an exhaust tube is disposed that connects the engine-exhaust-system apparatus to an exhaust discharge port side of an engine,there is provided a distribution tube that spatially connects the exhaust outlet chamber and the exhaust inlet chamber,the exhaust outlet tube is disposed parallel to an axis of the distribution tube and displaced radially relative to the distribution tube, andthe insertion section has an open end with a brim portion that spreads beyond a tube diameter of the insertion section, the brim portion being disposed along a peripheral wall at the open end.2. A package-type engine electric power generator claim 1 , comprising an engine and an electric power generator in a single package and further comprising the engine-exhaust-system apparatus set forth in . The present invention relates to an engine-exhaust-system apparatus and a package-type engine electric power generator disposed on the exhaust path of, for example, a stationary engine.Engine exhaust structures are conventionally known that include a muffler and a mist separator (gas-liquid separator) on the exhaust path of a stationary ...

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Номер записи: 45
02-01-2020 дата публикации

MUFFLER

Номер: US20200003093A1
Автор: FERRONT Hervé
Принадлежит:

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 ...

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Номер записи: 46
07-01-2021 дата публикации

Muffler Structure

Номер: US20210003053A1
Автор: Chang Hao-Yao
Принадлежит:

A muffler structure contains: a body, a first cover unit, and a second cover unit. The body includes an accommodation tube, fiber cotton, and a first mesh portion. The accommodation tube has an accommodating space and an internal fence. The first cover unit includes a manifold connection portion, a first polygonal cap, a hollowly tubular mesh having multiple orifices, a second mesh portion, and a stainless steel mesh. The second cover unit is fixed on a rear end of the accommodation tube of the body opposite to the first cover unit, and the second cover unit includes a second polygonal cap and a silencer. The second polygonal cap is covered on the accommodation tube of the body, and the second polygonal cap has a receiving portion defined in a free end thereof and configured to accommodate the silencer. 1. A muffler structure comprising:a body made of carbon fibers and including an accommodation tube, fiber cotton, and a first mesh portion, wherein the accommodation tube has an accommodating space and an internal fence which are defined in the accommodation tube, and a cross-section of a front end of the accommodation tube is less than a cross-section of a rear end of the accommodation tube, the accommodating space is configured to accommodate the fiber cotton and the first mesh portion which abut against the internal fence;a first cover unit inserted into the accommodation tube of the body from the front end of the accommodation tube to the rear end of the accommodation tube, wherein the first cover unit includes a manifold connection portion, a first polygonal cap, a hollowly tubular mesh having multiple orifices, a second mesh portion, and a stainless steel mesh, wherein a first end of the manifold connection portion is connected with an engine, and a second end of the manifold connection portion is connected with the first polygonal cap, the manifold connection portion is one-piece formed with the first polygonal cap and the hollowly tubular mesh, the first ...

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Номер записи: 47
07-01-2021 дата публикации

TUNING A SOUND PROFILE OF A MUFFLER

Номер: US20210003054A1
Автор: Freeman Stephen E., Kass Tyler J.
Принадлежит:

Apparatuses and methods for tuning a muffler. An apparatus comprises a housing for a muffler, a first inlet pipe, and a second inlet pipe. The housing includes a coupling chamber. The first inlet pipe has a first set of physical features and carries exhaust to the coupling chamber. The second inlet pipe has a second set of physical features and carries the exhaust to the coupling chamber. The first set of physical features varies from the second set of physical features with respect to at least one physical feature such that a first sound waveform passing through the first inlet pipe and a second sound waveform passing through the second inlet pipe are uniquely tuned to thereby tune an overall sound waveform emitted by the muffler. 1. An apparatus comprising:a housing for a muffler, the housing including a coupling chamber;a first inlet pipe having a first set of physical features, wherein the first inlet pipe carries exhaust to the coupling chamber; anda second inlet pipe having a second set of physical features, wherein the second inlet pipe carries the exhaust to the coupling chamber;wherein the first set of physical features varies from the second set of physical features with respect to at least one physical feature such that a first sound waveform passing through the first inlet pipe and a second sound waveform passing through the second inlet pipe are uniquely tuned to thereby tune an overall sound waveform emitted by the muffler.2. The apparatus of claim 1 , wherein the first sound waveform and the second sound waveform are uniquely tuned with respect to a time domain by a first portion of the first inlet pipe and a second portion of the second inlet pipe that extend through the housing and to the coupling chamber having different lengths.3. The apparatus of claim 1 , wherein the first sound waveform and the second sound waveform are uniquely tuned by a first portion of the first inlet pipe and a second portion of the second inlet pipe that extend through ...

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Номер записи: 48
12-01-2017 дата публикации

ENGINE SYSTEM FOR WORKING MACHINE

Номер: US20170009683A1
Автор: Mitsuda Masataka
Принадлежит:

An engine system for a working machine includes an engine disposed in a main body of the working machine, an exhaust manifold coupled to the engine, a tail pipe, an exhaust-gas purification device disposed in the main body and including an exhaust-gas inlet-side housing including an exhaust-gas inlet coupled to the exhaust manifold, and an exhaust-gas outlet-side housing including an exhaust-gas outlet coupled to the tail pipe, the exhaust-gas purification device being configured to purify exhaust gas discharged from the engine and cause the purified exhaust gas to be discharged from the tail pipe to an outside of the engine system, and a silencer housing disposed as needed in any one or both of the exhaust-gas inlet-side housing and the exhaust-gas outlet-side housing to attenuate exhaust sound of the engine. 1. An engine system for a working machine , the engine system comprising:an engine disposed in a main body of the working machine;an exhaust manifold coupled to the engine;a tail pipe;an exhaust-gas purification device disposed in the main body and comprising an exhaust-gas inlet-side housing comprising an exhaust-gas inlet coupled to the exhaust manifold, and an exhaust-gas outlet-side housing comprising an exhaust-gas outlet coupled to the tail pipe, the exhaust-gas purification device being configured to purify exhaust gas discharged from the engine and cause the purified exhaust gas to be discharged from the tail pipe to an outside of the engine system; anda silencer housing disposed as needed in any one or both of the exhaust-gas inlet-side housing and the exhaust-gas outlet-side housing to attenuate exhaust sound of the engine.2. The engine system according to claim 1 ,wherein the exhaust-gas purification device further comprises an exhaust-gas outlet cover attachably/detachably secured to the exhaust-gas outlet of the exhaust-gas exhaust-side housing,wherein the exhaust-gas inlet-side housing comprises an oxidation catalyst and the exhaust-gas exhaust- ...

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Номер записи: 49
14-01-2016 дата публикации

ATTENUATING ENGINE NOISE USING A REVERSE RESONATOR

Номер: US20160010523A1
Автор: Beach Rodney, Cardone Ryan, McNelis Niall B., Waltemyer Bradley
Принадлежит:

Techniques involve attenuating noise from engine exhaust from an engine. For example, an apparatus includes a first tube having an input end which receives the engine exhaust from the engine, and an output end which outputs the engine exhaust. The apparatus further includes a second tube which encircles the output end of the first tube. The second tube has an exhaust end through which the engine exhaust outputted by the output end of the first tube is allowed to escape, and a resonator end which is opposite the exhaust end. The apparatus further includes a reverse resonator disposed at the resonator end of the second tube. The reverse resonator defines a reverse resonator chamber and a reverse resonator chamber diameter which is larger than a second tube diameter defined by the second tube. 1. Apparatus to attenuate noise from engine exhaust from an engine , the apparatus comprising:a first tube having an input end which receives the engine exhaust from the engine, and an output end which outputs the engine exhaust;a second tube which encircles the output end of the first tube, the second tube having an exhaust end through which the engine exhaust outputted by the output end of the first tube is allowed to escape, and a resonator end which is opposite the exhaust end; anda reverse resonator disposed at the resonator end of the second tube, the reverse resonator defining a reverse resonator chamber and a reverse resonator chamber diameter which is larger than a second tube diameter defined by the second tube.2. Apparatus as in wherein the reverse resonator claim 1 , the output end of the first tube claim 1 , and the exhaust end of the second tube are arranged in an inline configuration to provide uniform attenuation of the noise from the engine exhaust as the engine exhaust is outputted by the output end of the first tube.3. Apparatus as in wherein the output end of the first tube defines a first tube diameter claim 2 , the first tube diameter being smaller than the ...

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Номер записи: 50
14-01-2016 дата публикации

Muffler For Automobile

Номер: US20160010524A1
Автор: Bartlett William Lee
Принадлежит:

A muffler for an exhaust system of a gas combustion engine, which comprises a muffler body () connected to an exhaust pipe inlet (), an exhaust pipe outlet () to the tailpipe connected to the muffler body (), and adjacent baffles () within the muffler body (), characterized in that the exhaust pipe inlet (), the exhaust pipe outlet () and the adjacent baffles () are in line without significant restriction to gas exhaust flow and having baffle openings () and baffle louver openings (19) to the central muffler chamber (), whereby the central muffler chamber route () is generally a straight line from the exhaust inlet pipe () to the exhaust pipe outlet (). 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. An automotive muffler , comprising:an elongated body having an axis and comprising first and second opposing end caps and an elongated outer wall extending between the end caps, the body defining a muffler chamber therewithin;an exhaust inlet formed through the first end cap and an exhaust outlet formed through the second end cap, an exhaust flow path extending between the exhaust inlet and the exhaust outlet;an elongated baffle having opposing ends and top and bottom surfaces that are attached to the outer wall of the elongated body so that a baffle chamber is defined between the baffle and the outer wall, the baffle chamber separated from the muffler chamber by the baffle;an upstream portion of the elongated baffle extending in a direction transverse to the axis so as to narrow the exhaust flow path;a downstream portion of the elongated baffle extending in a direction transverse to the axis so as to broaden the exhaust flow path;an upstream aperture formed through the upstream portion of the elongated baffle; anda downstream aperture formed through the downstream portion of the elongate baffle.16. An automotive muffler as in ...

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Номер записи: 51
15-01-2015 дата публикации

Frequency-Modifying Muffler

Номер: US20150014091A1
Автор: Butler Boyd L.
Принадлежит:

A muffler for raising the audible pitch of an internal combustion engine's exhaust note that includes an enclosed case having an inlet and an outlet, and a plurality of flow-directing components which are adapted to subdivide an inlet flow into a plurality of discrete interior flows, including a first interior flow providing the shortest flow length through the muffler between the inlet and the outlet, a second interior flow having a flow length at least about twice the length of the first interior flow, and one or more intermediate flows following by-pass passages to split off from the second interior flow between the inlet and the outlet and having flow lengths between the flow lengths of the first and second flows. 1. A muffler for raising an audible pitch of an internal combustion engine's exhaust note , comprising:an enclosed case having an inlet and an outlet; anda plurality of flow-directing components adapted to subdivide an inlet flow into a plurality of interior flows comprising:a flowtube extending between the inlet and the outlet to form a first substantially-direct interior flow passage providing the shortest flow length through the enclosed case between the inlet and the outlet, said flowtube having an inside diameter and having an entrance end with an entrance opening having a diameter smaller than the inside diameter of the flowtube; andat least two deflector plates spanning a distance between a top and a bottom of the enclosed case and oriented transverse to a longitudinal center axis of the case, and supporting the flowtube therethrough,wherein adjacent deflector plates are laterally offset from a longitudinal center axis in opposite directions with wide gaps between each deflector plate and alternating far sidewalls forming a tortuous passage providing a second interior flow passage between the inlet and the outlet and having a flow length at least about twice the flow length of the first interior flow passage, andwherein narrow gaps between each ...

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Номер записи: 52
03-02-2022 дата публикации

EXHAUST GAS TREATMENT SYSTEM AND METHOD WITH FOUR-WAY CATALYZED FILTER ELEMENT

Номер: US20220034247A1
Автор: Hruby Eric J., Ponnaiyan Ayyappan
Принадлежит:

An exhaust gas treatment system for an internal combustion engine includes an exhaust gas pathway configured to receive exhaust gas from the internal combustion engine, a first treatment element positioned within the exhaust gas pathway, a first injector configured to introduce a first reductant into the exhaust gas pathway upstream of the first treatment element, a second injector configured to introduce a second reductant into the exhaust gas pathway downstream of the first treatment element, a second treatment element positioned within the exhaust gas pathway downstream of the second injector, the second treatment element including a SCR element, and a controller configured to periodically initiate a desulfuring regeneration cycle by increasing a concentration of hydrocarbons in the exhaust gas and increasing the flow of the first reductant through the first injector to oxidize sulfur contamination in the first treatment element at temperatures between 400 and 500 degrees Celsius. 1. An exhaust gas treatment system for an internal combustion engine , the exhaust gas treatment system comprising:an exhaust gas pathway configured to receive exhaust gas from the internal combustion engine;a first treatment element positioned within the exhaust gas pathway,a first injector configured to introduce a first reductant into the exhaust gas pathway upstream of the first treatment element;a second injector configured to introduce a second reductant into the exhaust gas pathway downstream of the first treatment element;a second treatment element positioned within the exhaust gas pathway downstream of the second injector, the second treatment element including a SCR element; anda controller configured to periodically initiate a desulfuring regeneration cycle by increasing a concentration of hydrocarbons in the exhaust gas and increasing the flow of the first reductant through the first injector to oxidize sulfur contamination in the first treatment element at temperatures ...

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Номер записи: 53
21-01-2016 дата публикации

NOISE ATTENUATING ACOUSTIC PANEL

Номер: US20160017775A1
Автор: Mattia Stephen H.
Принадлежит:

An acoustic panel is provided that includes a first layer, a perforated second layer, a core and a noise attenuating feature. The core forms a chamber between the first and the second layers. The noise attenuating feature projects partially into the chamber. The noise attenuating feature is formed integral with the first layer, the second layer and/or the core. 1. An acoustic panel , comprising:a first layer;a perforated second layer;a core forming a chamber between the first and the second layers; anda noise attenuating feature projecting partially into the chamber, the noise attenuating feature formed integral with at least one of the first layer, the second layer or the core.2. The acoustic panel of claim 1 , wherein the noise attenuating feature comprises a baffle.3. The acoustic panel of claim 1 , wherein the noise attenuating feature comprises a muffler.4. The acoustic panel of claim 1 , whereinthe noise attenuating feature comprises a tube; andthe tube is fluidly coupled between a perforation in the second layer and the chamber.5. The acoustic panel of claim 4 , wherein a sidewall of the tube is perforated.6. The acoustic panel of claim 1 , wherein the noise attenuating feature is configured as a cone or a pyramid.7. The acoustic panel of claim 1 , whereinthe noise attenuating feature is one of a plurality of noise attenuating features projecting partially into the chamber; andeach of the noise attenuating features is formed integral with at least one of the first layer, the second layer or the core.8. The acoustic panel of claim 7 , wherein the noise attenuating features are configured to provide at least a portion of a surface claim 7 , which defines at least a portion of the chamber claim 7 , with a surface roughness between about 250 Ra and about 2 claim 7 ,000 Ra.9. The acoustic panel of claim 1 , whereinthe core further forms a second chamber between the first and the second layers; andthe chamber and the second chamber are fluidly discrete.10. The ...

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Номер записи: 54
21-01-2016 дата публикации

MUFFLER

Номер: US20160017776A1
Автор: Schmidt Jurgen, TUROWSKI Georg
Принадлежит:

A muffler, in particular a rear muffler, for an exhaust gas system of an internal combustion engine, in particular a motor vehicle engine, comprises a housing, in particular a housing having a jacket and two end walls, and comprises at least one first pipe, in particular an inlet or outlet pipe which is in particular led through the jacket and which is connected to a second pipe, in particular to an inner pipe. The second pipe comprises a pipe piece into which a pipe piece of the first pipe led through an opening of an inner support element is plugged in an axially displaceable manner. In this respect, the pipe piece of the first pipe is preferably provided with slits into which nubs engage which are provided at the inner boundary of the opening of the support element. The end section of the first pipe is expanded in its region plugged into the pipe piece of the second pipe to fix the first pipe at the support element.

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Номер записи: 55
18-01-2018 дата публикации

Exhaust-Gas System

Номер: US20180016954A1
Автор: DREES Rainer, EICHMUELLER Christian
Принадлежит:

An exhaust-gas system for a vehicle having an internal combustion engine includes a Helmholtz resonator and two exhaust-gas lines extending toward the resonator. The resonator has two neck openings to a resonator volume. Each neck opening is coupled to one of the exhaust-gas lines, and the resonator is tuned to damp a dominant engine order. 1. An exhaust-gas system for a vehicle having an internal combustion engine , comprising:a Helmholtz resonator; and the resonator has two neck openings to a resonator volume, and', 'each neck opening is coupled to a respective one of the two exhaust-gas lines and the resonator is tuned for damping a dominant engine order., 'two exhaust-gas lines extending towards the resonator, wherein'}2. The exhaust-gas system as claimed in claim 1 , whereinthe resonator comprises a housing forming the resonator volume, which housing is configured separately from other component housings of the exhaust-gas system, andthe housing is arranged spaced apart from a rear region of the vehicle.3. The exhaust-gas system as claimed in claim 1 , further comprising:a flap in each case arranged in a region between the exhaust-gas line and the resonator volume, which flap is configured for the at least partial opening and/or closing of the neck opening in each case.4. The exhaust-gas system as claimed in claim 3 , whereineach exhaust-gas line in a through-flow direction of the exhaust-gas lines downstream of the resonator has at least two exhaust-gas outlet openings, andat least one exhaust-gas outlet opening in each case is provided with an exhaust-gas flap, by which the exhaust-gas outlet opening is reversibly closable.5. The exhaust-gas system as claimed in claim 4 , whereina common cross section of the exhaust-gas outlet openings for each exhaust-gas line is of a same size as the cross section of the exhaust-gas line.6. The exhaust-gas system as claimed in claim 3 , further comprising:an actuator for joint actuation of the flap arranged between the ...

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Номер записи: 56
18-01-2018 дата публикации

ENGINE AND ENGINE-DRIVEN WORKING MACHINE

Номер: US20180016964A1
Автор: ICHIHASHI Naoto, Ikeda Keisuke, OOTSUKA Kazuhiro
Принадлежит: HITACHI KOKI CO., LTD.

An engine is configured so that a muffler is affixed to the exhaust opening of the cylinder, and the air-cooled cylinder is cooled by a cooling fan. The engine is provided with a muffler cover for covering the muffler, and exhaust gas is discharged inside the muffler cover along the wall surface of the muffler. A second cooling air is combined with the exhaust gas flow from the upstream side thereof to be parallel thereto, and a first cooling air having been caused to flow under the muffler is caused to perpendicularly impinge against the exhaust gas flow on the downstream side thereof. Thus, the cooling airs are combined inside the muffler cover with the exhaust gas flow, and as a result the temperature of the exhaust gas is sufficiently reduced at the time when the exhaust gas is discharged from the opening of the muffler cover to the outside. 1. An engine comprising: a cylinder having a plurality of fins on an outer circumferential section thereof and in which a combustion chamber is formed; a cooling fan configured to generate cooling air to cool the cylinder; and a substantially rectangular parallelepiped muffler attached to the cylinder , wherein an exhaust gas outlet is installed in the muffler to discharge an exhaust gas along a first wall surface of the muffler in a direction perpendicular to an axial direction of the cylinder , and first cooling air passing through and between the fins flows along a second wall surface disposed at a downstream side in a discharge direction of the exhaust gas when seen from the first wall surface and merges with the exhaust gas.2. The engine according to claim 1 , wherein an exhaust gas passage including the exhaust gas outlet and configured to determine a discharge direction of the exhaust gas is formed in the muffler claim 1 , and the exhaust gas passage is disposed to be biased at an upstream side in an exhaust gas outflow direction on the first wall surface of the muffler.3. The engine according to claim 1 , wherein a ...

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Номер записи: 57
17-01-2019 дата публикации

EXHAUST DEVICE OF STRADDLE-TYPE VEHICLE

Номер: US20190017428A1
Автор: SUGI Yoshinori
Принадлежит: SUZUKI MOTOR CORPORATION

There is provided an exhaust device of a straddle-type vehicle. A first muffler body is arranged at one side, at which a drive chain is not arranged, in a region at the rear of a chamber. A second muffler body is arranged at another side, at which the drive chain is arranged. A first connection pipe interconnects the chamber and the first muffler body. A second connection pipe interconnects the chamber and the second muffler body. An exhaust control valve is configured to control a flow rate of exhaust air to circulate from an exhaust port toward the first muffler body via an exhaust pipe, the chamber and the first connection pipe. A part or all of the second connection pipe is formed to have a pipe shape by two or more plate materials, and has a non-true circular cross-sectional surface shape. 1. An exhaust device of a straddle-type vehicle , comprising:a chamber arranged at the rear of an engine of the straddle-type vehicle;an exhaust pipe configured to interconnect an exhaust port of the engine and the chamber;a first muffler body arranged at one side, at which a drive chain is not arranged, of a left side and a right side of the straddle-type vehicle, in a region at the rear of the chamber;a second muffler body arranged at another side, at which the drive chain is arranged, of the left side and the right side of the straddle-type vehicle, in the region at the rear of the chamber;a first connection pipe configured to interconnect the chamber and the first muffler body;a second connection pipe configured to interconnect the chamber and the second muffler body; andan exhaust control valve configured to control a flow rate of exhaust air to circulate from the exhaust port toward the first muffler body via the exhaust pipe, the chamber and the first connection pipe,wherein a part or all of the second connection pipe is formed to have a pipe shape by two or more plate materials bonded to each other, and has a non-true circular cross-sectional surface shape.2. The ...

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Номер записи: 58
22-01-2015 дата публикации

SOUND GENERATOR FOR AN ANTI-NOISE SYSTEM FOR INFLUENCING EXHAUST NOISE AND/OR INTAKE NOISE OF A MOTOR VEHICLE

Номер: US20150020762A1
Автор: DAVID Steffen, PEITZ Maximilian
Принадлежит:

A sound generator for an anti-noise system for influencing sound waves propagating in exhaust systems or intake systems of vehicles driven by an internal combustion engine includes a loudspeaker basket , a membrane supported by the loudspeaker basket , a permanent magnet supported by the loudspeaker basket , a voice coil supported by a voice coil carrier and a membrane stop . The voice coil is located within a constant magnetic field generated by the permanent magnet . The voice coil carrier is supported by the membrane . The membrane stop is located on the loudspeaker basket adjacent to the membrane . The membrane stop includes a projection extending towards the membrane . An anti-noise system using the sound generator and a vehicle using the anti-noise system are also provided. 1. A sound generator for an anti-noise system for influencing sound waves propagating through an intake system or an exhaust system of vehicles driven by an internal combustion engine , the sound generator comprising:a loudspeaker basket;a membrane supported by the loudspeaker basket;a permanent magnet supported by the loudspeaker basket;a voice coil carrier supported by the membrane;a voice coil supported by the voice coil carrier, the voice coil being disposed in a constant magnetic field created by the permanent magnet; anda membrane stop, wherein:the membrane stop is located on the loudspeaker basket adjacent to the membrane; andthe membrane stop comprises a projection extending towards the membrane.2. The sound generator according to claim 1 , wherein:the projection comprises a contact surface facing the membrane forming all or a portion of a total membrane stop contact surface area; andthe total membrane stop contact surface area is more than 2 percent and less than 15 percent of a surface area of the membrane.3. The sound generator according to claim 2 , wherein the projection contact surface has a larger extension in a radial direction than in a circumferential direction.4. The ...

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Номер записи: 59
16-01-2020 дата публикации

HELMHOLTZ MUFFLER FOR VEHICLE

Номер: US20200018203A1
Автор: Jo Jay Yon, Yoon Hyun Woo
Принадлежит:

A Helmholtz muffler for a vehicle may include a muffler housing having an internal space divided into a plurality of expansion chamber; a resonance chamber formed hermetically in a vehicle body member; and a connection tube configured to be connected to one of the expansion chambers of the muffler housing and to the resonance chamber. 1. A Helmholtz muffler for a vehicle , the muffler comprising:a muffler housing having an internal space divided into a plurality of expansion chamber;a resonance chamber formed hermetically in a vehicle body member; anda connection pipe connected to at least one of the plurality of expansion chambers of the muffler housing and to the resonance chamber.2. The Helmholtz muffler for the vehicle of claim 1 , wherein partitions by which a capacity of the resonance chamber is determined are disposed at a first side and a second side of the resonance chamber claim 1 , respectively claim 1 , and the partitions are integrally secured to the vehicle body member to form the resonance chamber.3. The Helmholtz muffler for the vehicle of claim 1 , wherein the connection pipe is connected to and is in fluidic communication with an expansion chamber to which exhaust gas is lastly discharged from the muffler housing claim 1 , among the plurality of expansion chambers.4. The Helmholtz muffler for the vehicle of claim 1 , wherein the connection pipe is a bellows pipe which is configured to be movable according to movement of the muffler case.5. The Helmholtz muffler for the vehicle of claim 4 , wherein an upper end portion and a lower end portion of the bellows pipe are secured to the resonance chamber in the vehicle body member and the muffler housing claim 4 , respectively.6. The Helmholtz muffler for the vehicle of claim 1 , further including:a first baffle and a second baffle mounted in the muffler housing in a longitudinal direction of the muffler housing and spaced from each other to form a space between a first side wall of the muffler housing ...

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Номер записи: 60
16-01-2020 дата публикации

ANTI-RESONANCE MUFFLER

Номер: US20200018204A1
Автор: Brockway Eric
Принадлежит:

An apparatus and method are provided for an anti-resonance muffler to attenuate vehicle exhaust system resonance. The anti-resonance muffler comprises a chamber having a specific volume, a port having a specific volume, an exhaust tube, an outlet and an inlet which is connected to a vehicle exhaust system. The combination of the chamber and port create a Helmholtz resonator device that acts to phase-cancel a narrow range of frequencies that are generated by the vehicle exhaust system. The chamber and port are mounted radially relative to the exhaust tube. 1. An anti-resonance muffler to attenuate vehicle exhaust system resonance , comprising a chamber with a specific volume , a port with a specific volume , an exhaust tube , an outlet and an inlet which is connected to the vehicle exhaust system of interest.2. The anti-resonance muffler of wherein the chamber and port create a Helmholtz resonator.3. The anti-resonance muffler of wherein the chamber and port are mounted radially relative to the exhaust tube.4. The anti-resonance muffler of wherein the chamber and port are in fluid communication with the vehicle exhaust system of interest.5. A method for attenuating vehicle exhaust system resonance claim 1 , comprising:a chamber and port having suitable volumes for use in an anti-resonance muffler;an anti-resonance muffler tuned to a suitable frequency to attenuate vehicle exhaust system resonance;a chamber and port in fluid communication with the vehicle exhaust system of interest;and a chamber and port mounted radially relative to an exhaust tube.6. The method of claim 5 , wherein selecting the tuning frequency of the anti-resonance muffler further comprises accounting for effects due to an operating temperature of the vehicle exhaust system of interest.7. The method of claim 5 , further comprising ensuring an anti-resonance muffler tuned frequency is substantially equal to an excitation frequency of the vehicle exhaust system of interest so as to optimize ...

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Номер записи: 61
16-01-2020 дата публикации

Exhaust control system

Номер: US20200018218A1
Автор: Erin M. Dmytrow, Justin G. Schroeder, Ryan L. Martin
Принадлежит: Roush Enterprises Inc

An exhaust management system for use in a motor vehicle having a muffler and a combustion engine generating an exhaust also has a bypass channel configured to be mounted to bypass the muffler of the exhaust system. The system also has a valve controlling air flow through the bypass channel, and a controller operably coupled with the valve. The controller is configured to be switchable between at least two modes. The at least two modes include a provider dynamic mode configured to be modified by a provider only, and a user dynamic mode configured to be modified by a user. The user has no rights to modify the provider dynamic mode.

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Номер записи: 62
16-01-2020 дата публикации

Pipe structure

Номер: US20200018219A1
Автор: Toshio Murata, Yoshikazu Shinpo
Принадлежит: Toyota Motor Corp

A pipe structure includes a pipe disposed in a state of contact with the air, a fluid with a temperature of at least 100° C. flowing inside the pipe; and a coating material containing nickel oxide and coated onto an outer periphery portion of the pipe

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Номер записи: 63
28-01-2016 дата публикации

Exhaust Gas System for an Internal Combustion Engine and Method for Operating the Exhaust Gas System

Номер: US20160024989A1
Автор: DREES Rainer, EICHMUELLER Christian
Принадлежит:

An exhaust gas system is provided for an internal combustion engine having at least a first and a second cylinder. A first exhaust gas pipe is associated with the first cylinder and a second exhaust gas pipe is associated with the second cylinder. A first muffler is associated with the first exhaust gas pipe and a second muffler is associated with the second exhaust gas pipe. A first muffling pipe branches off from the first exhaust gas pipe upstream of a first shut-off element, and is fed through the first muffler and leads into the second exhaust gas pipe downstream of a second shut-off element. A second muffling pipe branches off from the second exhaust gas pipe upstream of the second shut-off element, and is fed through the second muffler and leads into the first exhaust gas pipe downstream of the first shut-off element. 1. An exhaust gas system for an internal combustion engine having at least a first and a second cylinder , the exhaust gas system comprising:a first exhaust pipe assigned to the first cylinder;a second exhaust pipe assigned to the second cylinder;a first muffler assigned to the first exhaust pipe;a second muffler assigned to the second exhaust pipe;a first muffling pipe branching off from the first exhaust pipe upstream of a first shut-off member;a second muffling pipe branching off from the second exhaust pipe upstream of a second shut-off member, whereinthe first muffling pipe is guided through the first muffler and leads into the second exhaust pipe downstream of the second shut-off member, andthe second muffling pipe is guided through the second muffler and leads into the first exhaust pipe downstream of the first shut-off member.2. The exhaust gas system according to claim 1 , further comprising:a common housing in which the first and second mufflers are arranged.3. The exhaust gas system according to claim 2 , further comprising:a first resonator chamber assigned to the first muffling pipe; anda second resonator chamber assign to the ...

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Номер записи: 64
26-01-2017 дата публикации

Exhaust silencer

Номер: US20170022861A1
Автор: Daniel Neville, Graeme McKen, James Donnelly, John Shore
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

An exhaust silencer for a motor vehicle is provided. In one example, the silencer comprises a noise-reducing structure and a heat sink to transfer heat from exhaust gases to the exterior of the silencer, the heat sink comprising two regions of fins which define a plurality of flow channels through the heat sink, the flow channels directing the flow of exhaust through the silencer from an inlet passage to an outlet passage. In this way, a temperature of the exhaust is reduced, and the silencer and downstream components of an exhaust system may be constructed of materials of a lower thermal tolerance.

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Номер записи: 65
25-01-2018 дата публикации

Timbre Scaled Exhaust System

Номер: US20180023429A1
Автор: Borla David Akiba
Принадлежит:

A timbre scaled internal combustion exhaust system includes: an inlet collector including a single entrance duct at a first end of the collector in fluid communication with an exhaust flow from an internal combustion engine and an exit duct at a second end of the collector; a plurality of non-perforated parallel tuning tubes in fluid communication with the plurality of exit ducts of the inlet collector, the plurality of tuning tubes having lengths and diameters selected based on a desired note of the timbre scaled exhaust system; an outlet collector including a plurality of entrance ducts in fluid communication with the at least first and second tuning tubes and a single exit duct in fluid communication with an outlet of the exhaust system. The inlet collector splits the exhaust flow through the plurality of tuning tubes to create individual notes, and wherein the outlet collector combines the split exhaust flow to create a desired sound of internal combustion engine exhaust. 1. A timbre-scaled exhaust system comprising:an inlet collector including an entrance duct at a first end of the collector in fluid communication with an exhaust flow from an internal combustion engine and an exit duct at a second end of the collector;a plurality of non-perforated parallel tuning tubes in fluid communication with the plurality of exit ducts of the inlet collector, the plurality of tuning tubes having lengths and diameters selected based on a desired note of the timbre scaled exhaust system;an outlet collector including an entrance duct in fluid communication with the at least first and second tuning tubes and an exit duct in fluid communication with an outlet of the exhaust system;wherein the inlet collector splits the exhaust flow through the plurality of tuning tubes to create individual notes, and wherein the outlet collector combines the split exhaust flow to create a desired sound of internal combustion engine exhaust.2. The timbre-scaled exhaust system of claim 1 , the ...

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Номер записи: 66
10-02-2022 дата публикации

EXHAUSTER ASSEMBLY FOR A VEHICLE

Номер: US20220042430A1
Автор: Camella Michael James, II John Joseph, Todd
Принадлежит:

A mounting assembly for a silencer of an exhauster assembly includes a mounting plate. The mounting plate has an opening configured to receive an exhauster of the exhauster assembly while the exhauster is coupled to a structure of a vehicle at least partially separately from the mounting plate. In addition, the mounting plate has a first side configured to face the structure of the vehicle and a second side configured to face the silencer. The mounting assembly also includes at least one exhauster mounting feature configured to couple the mounting plate to the exhauster. Furthermore, the mounting assembly includes a silencer mounting feature configured to couple the silencer to the mounting plate. 1. A mounting assembly for a silencer of an exhauster assembly , comprising:a mounting plate having an opening configured to receive an exhauster of the exhauster assembly while the exhauster is coupled to a structure of a vehicle at least partially separately from the mounting plate, wherein the mounting plate has a first side configured to face the structure of the vehicle and a second side configured to face the silencer;at least one exhauster mounting feature configured to couple the mounting plate to the exhauster; anda silencer mounting feature configured to couple the silencer to the mounting plate.2. The mounting assembly of claim 1 , wherein the at least one exhauster mounting feature comprises a first exhauster mounting feature and a second exhauster mounting feature claim 1 , the first exhauster mounting feature is formed on the mounting plate and positioned at a first end of the opening claim 1 , and the second exhauster mounting feature is formed on the mounting plate and positioned at a second end of the opening claim 1 , opposite the first end.3. The mounting assembly of claim 2 , wherein the first exhauster mounting feature comprises a first extension configured to engage a first side of the exhauster and a second extension configured to engage a second ...

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Номер записи: 67
10-02-2022 дата публикации

AN EXHAUST GAS ASSEMBLY

Номер: US20220042431A1
Автор: CAZZOLATO Benjamin, HOWARD Carl, LEAV Orddom, TURNBULL Chris
Принадлежит: The University of Adelaide

An exhaust duct assembly for conveying exhaust gases emanating from a combustion zone to atmosphere is disclosed. The assembly includes: an exhaust gas outlet for exhausting exhaust gas into the atmosphere; and an acoustic duct portion located upstream of the exhaust gas outlet, the acoustic duct portion having a peripheral wall defining a through-passage arranged and constructed to promote propagation of sound there-through. The acoustic duct portion has a length in a flow direction that is at least 50% of an average hydraulic diameter of the through-passage. 1. An exhaust duct assembly for conveying exhaust gases emanating from a combustion zone to atmosphere , the assembly including:an exhaust gas outlet for exhausting exhaust gas into the atmosphere; andan acoustic duct portion located upstream of the exhaust gas outlet, the acoustic duct portion having a peripheral wall defining a through-passage arranged and constructed to promote propagation of sound there-through.2. The assembly of wherein the acoustic duct portion has a length in a flow direction that is at least 50% of an average hydraulic diameter of the through-passage.3. The assembly of wherein the acoustic duct portion has a length in the flow direction that is at least 100% of the average hydraulic diameter of the through-passage.4. The assembly of wherein the acoustic duct portion has a length in the flow direction that is at least 200% of the average hydraulic diameter of the through-passage.5. The assembly of wherein the acoustic duct portion includes a perforated sheet.6. The assembly of wherein the acoustic duct portion includes a steel mesh.7. The assembly of wherein the acoustic duct portion of the steel mesh is a woven cloth.8. The assembly of including an air aspirating portion.9. The assembly of wherein the air aspirating portion includes the acoustic duct portion. The present application claims priority from Australian Provisional Patent Application No. 2018903441 titled “AN EXHAUST GAS ...

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Номер записи: 68
10-02-2022 дата публикации

MUFFLER INCLUDING AN INTERNAL PHOTOCATALYST AND A LIGHT SOURCE

Номер: US20220042440A1
Автор: Young Roger K.
Принадлежит: Pure-Light Technologies, Inc.

A muffler includes a muffler housing having an exhaust gas inlet port adapted for securing to an exhaust pipe of an automobile so that exhaust gases from an internal combustion engine of the automobile are directed through the muffler housing from the exhaust gas inlet to an exhaust gas outlet. The muffler housing includes a plurality of rigid surfaces that form an exhaust gas pathway including a plurality of turns and lead from the exhaust gas inlet port to the exhaust gas outlet port. A photocatalyst coating is secured to an area of the rigid surfaces, and a light source is secured to the muffler housing and positioned to direct light onto the photocatalyst coating. The exhaust gases come into contact with the photocatalyst coating and reactive species generated by the photocatalyst coating decompose one or more pollutants in the exhaust gas. 1. A muffler , comprising:a muffler housing having an exhaust gas inlet port adapted for securing to an exhaust pipe of an automobile so that exhaust gases from an internal combustion engine of the automobile are directed through the muffler housing from the exhaust gas inlet to an exhaust gas outlet;a plurality of rigid surfaces within the muffler housing, wherein the plurality of rigid surfaces form an exhaust gas pathway including a plurality of turns and leading from the exhaust gas inlet port to the exhaust gas outlet port;a photocatalyst coating secured to an area of the rigid surfaces; anda light source secured to the muffler housing and positioned to direct light onto the photocatalyst coating, wherein the exhaust gases come into contact with the photocatalyst coating and reactive species generated by the photocatalyst coating decompose one or more pollutants in the exhaust gas.2. The muffler of claim 1 , wherein the photocatalyst coating includes:a binder layer secured to the surface of the transparent substrate; anda transparent semiconductor photocatalyst layer secured to the transparent binder layer.3. The muffler ...

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Номер записи: 69
24-01-2019 дата публикации

MUFFLER

Номер: US20190024548A1
Автор: KARAY Stephen John, Mehrani Pouria, MUSCAT Mario Charles
Принадлежит: ORBITAL AUSTRALIA PTY LTD

A muffler devised particularly for a small, reciprocating-piston two-stroke internal combustion engine of the type used on unmanned aerial vehicles. The muffler comprises a body incorporating an inlet, an outlet, and a plurality of chambers for exhaust gas flow from the inlet to the outlet. The body is configured to present a compact profile for installation on the engine. The chambers are so configured that adjacent chambers communicate to facilitate exhaust gas flow from the inlet to the outlet via flow passages. The various chambers comprise an inner chamber, an outer chamber, and one or more intervening chambers disposed between the inner and outer chambers. The various chambers are disposed one about another in annular formation. This arrangement creates a long flow path from the inlet to the outlet incorporating various directional changes. 141-. (canceled)42. A muffler comprising a body defining a plurality of chambers disposed one about another , the plurality of chambers being defined between two opposed side walls , each chamber being separated from a respective adjacent chamber by a common wall therebetween , an inlet for delivery of exhaust gas into one of the chambers and an outlet for discharge of exhaust gas from another of the chambers , adjacent chambers being interconnected for exhaust gas flow from the inlet to the outlet , the plurality of chambers comprising an inner chamber and an outer chamber , an opening in one side wall , the opening being aligned with and communicating directly with an adjacent portion of the inner chamber , the cross-sectional area of the opening being smaller than the cross-sectional area of the portion of the inner chamber with which it communicates , wherein the inlet or the outlet comprises the opening , each chamber communicating with a respective adjacent chamber for exhaust gas flow therebetween through one or more flow passages in the respective common wall between the two adjacent chambers , the one or more flow ...

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Номер записи: 70
24-01-2019 дата публикации

METHOD FOR FORMING A COLLAR IN A MUFFLER HOUSING

Номер: US20190024549A1
Автор: VANLEENE Paul
Принадлежит:

Method for forming a collar in a muffler shell including: 1. A method for forming a collar in a muffler shell for a muffler for an internal combustion engine , the method comprising:providing a muffler shell made of a metal sheet and forming a muffler housing, the muffler shell having an exhaust gas opening,providing a collar forming head having a rotational axis and at least two movable expanders,introducing the collar forming head into the muffler housing, wherein the expanders are in a retracted position, by moving the retracted collar forming head along the rotational axis through the exhaust gas opening in the muffler shell, wherein the retracted collar forming head has a largest diameter smaller than the largest diameter of the exhaust gas opening in the muffler shell,moving the expanders of the collar forming head introduced into the muffler shell radially away from the rotational axis of the collar forming head from the retracted position to an expanded position, in which the largest diameter of the expanded collar forming head radially to the rotational axis is larger than the largest diameter of the exhaust gas opening,rotating the collar forming head around the rotational axis of the collar forming head,bringing the rotating expanded collar forming head in contact with the metal sheet adjacent to and surrounding the exhaust gas opening in the muffler shell by moving the expanded collar forming head along the rotational axis in a direction outwardly from the interior of the muffler housing,forming an outwardly projecting collar around the exhaust gas opening by flaring the edge of the metal sheet surrounding the exhaust gas opening outwardly and increasing the size of the exhaust gas opening by moving the expanded collar forming head along the rotational axis.2. The method according to claim 1 , wherein the step of forming the outwardly projecting collar is performed in one step.3. The method according to claim 1 , wherein the method comprises the step of ...

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Номер записи: 71
28-01-2021 дата публикации

ENGINE AND WORK MACHINE

Номер: US20210023940A1
Автор: Matsubara Yasunori, Morinaga Ryota
Принадлежит: HONDA MOTOR CO., LTD.

In an engine, an air cleaner and a muffler are located laterally opposite to each other with an engine body therebetween, the air cleaner and the muffler are located forward of the engine body in the longitudinal direction, a fuel tank is longer laterally than longitudinally when viewed from above and is located rearward of the engine body in the longitudinal direction, and an oil filler port which is sealed by a cap is provided to the fuel tank at a position laterally deviated leftward. A level gauge, which can be visually recognized when the cap is removed and the oil filler port is viewed from above and from the front side longitudinally, is provided inside the fuel tank. 1. An engine comprising:an engine body;a fuel tank;an air cleaner; anda muffler,wherein the air cleaner and the muffler are disposed on opposite sides in a first direction with the engine body interposed therebetween,the air cleaner and the muffler are disposed on one side of the engine body in a second direction perpendicular to the first direction,the fuel tank is longer in the first direction than in the second direction when viewed from above, and is disposed on the other side of the engine body in the second direction,the fuel tank is provided with an oil filler port to be sealed with a cap at a position displaced to one side in the first direction, anda level gauge, which is visually recognized when the cap is removed and the oil filler port is viewed from above and from the one side in the second direction, is provided inside the fuel tank.2. The engine according to claim 1 ,wherein the level gauge is formed by causing a wall surface of the fuel tank to bulge inside the fuel tank.3. The engine according to claim 1 ,wherein the muffler is disposed on the other side in the first direction, andthe air cleaner is disposed on the one side in the first direction.4. The engine according to claim 1 ,wherein the level gauge is continuously provided from a bottom surface of the fuel tank.5. A work ...

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Номер записи: 72
23-01-2020 дата публикации

Reduced Length Exhaust System With Valve

Номер: US20200025057A1
Автор: Brett HERWAT, Gabriel Ostromecki, Jason Johnson
Принадлежит: Tenneco Automotive Operating Co Inc

An exhaust system for receiving exhaust gas from an engine of a vehicle includes first, second, and third exhaust components, and first and second pipes. The first and second exhaust components are each adapted to receive exhaust gas from the engine. The first pipe has a first inlet, and first and second outlets. The first inlet is adapted to receive exhaust gas from the first exhaust component. The second pipe has a second inlet, and third and fourth outlets. The second inlet is adapted to receive exhaust gas from the second exhaust component. The third exhaust component is disposed downstream of and laterally between the first and second exhaust components. The third exhaust component has third and fourth inlets, and fifth and sixth outlets. The third inlet is fluidly connected to the first outlet. The fourth inlet is fluidly connected to the third outlet.

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Номер записи: 73
10-02-2022 дата публикации

ABNORMALITY DETECTION DEVICE FOR EXHAUST GAS SENSOR

Номер: US20220044503A1
Автор: Gotou Sayaka, Jino Kenichi, SUZUKI Kouta
Принадлежит:

An abnormality detection device determines abnormality in an exhaust gas sensor, disposed in an exhaust passage of an engine to detect a component in exhaust gas. The abnormality detection device includes: a responsiveness determination unit configured to calculate responsiveness of the exhaust gas sensor on the basis of a timewise change of output values of the exhaust gas sensor; and an abnormality determination unit configured to determine that the exhaust gas sensor has abnormality when the responsiveness calculated by the responsiveness determination unit is lower than a predetermined responsiveness threshold. The abnormality determination unit determines if the exhaust gas sensor has abnormality, excluding an excluded period during which a slope of the output values becomes zero or is inversed with respect to a preceding trend of the timewise change while the output values of the exhaust gas sensor timewisely change between a predetermined first and second determination values. 1. An abnormality detection device configured to determine abnormality in an exhaust gas sensor configured to be disposed in an exhaust passage of an internal combustion engine and to detect a component in exhaust gas , the abnormality detection device comprising:a responsiveness determination unit configured to calculate responsiveness of the exhaust gas sensor on the basis of a timewise change of output values of the exhaust gas sensor; andan abnormality determination unit configured to determine that the exhaust gas sensor has abnormality when the responsiveness calculated by the responsiveness determination unit is lower than a predetermined responsiveness threshold,wherein the abnormality determination unit is configured to determine if the exhaust gas sensor has abnormality, excluding an excluded period during which a slope of the output values becomes zero or is inversed with respect to a preceding trend of the timewise change while the output values of the exhaust gas sensor ...

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Номер записи: 74
28-01-2021 дата публикации

Customized Muffler

Номер: US20210025300A1
Автор: Minassian Vahak
Принадлежит:

A customized muffler is an apparatus that provides a sportscar-like sound for any exhaust system. The apparatus includes an outer cylindrical shell, a first outer cone, a second outer cone, and at least one sound modifier. The outer cylindrical shell, the first outer cone, and the second outer cone are fixed together and replace an existing muffler. The at least one sound modifier includes an annular disk and a plurality of slots which creates the sportscar-like sound. The first outer cone and the second outer cone also contribute to the sportscar-like sound as a result of the tapering construction of the first outer cone and the second outer cone. The apparatus further customizes the sound of an engine as the apparatus further includes a combination of a first central tube, a second central tube, an air deflector, a third cone, and a fourth cone positioned within the outer cylindrical shell. 1. A customized muffler comprises:an outer cylindrical shell;a first outer cone;a second outer cone;at least one sound modifier;the at least one sound modifier comprises an annular disk and a plurality of slots;the outer cylindrical shell comprises an elongated body, a first shell rim, and a second shell rim;the first outer cone comprises a first lateral wall, a first wider cone rim, and a first narrower cone rim;the second outer cone comprises a second lateral wall, a second wider cone rim, and a second narrower cone rim;the first shell rim and the second shell rim being positioned opposite to each other along the elongated body;the first wider cone rim and the first narrower cone rim being positioned opposite each other along the first lateral wall;the second wider cone rim and the second narrower cone rim being positioned opposite each other along the second lateral wall;the first wider cone rim being fixed adjacent to the first shell rim;the second wider cone rim being fixed adjacent to the second shell rim;the plurality of slots traversing normal through the annular disk; ...

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Номер записи: 75
02-02-2017 дата публикации

Spherical decoupler conduit

Номер: US20170030500A1
Автор: Attila Stephens, Dennis Richard Mevissen, Robert Schellin
Принадлежит: NELSON GLOBAL PRODUCTS Inc

A spherical decoupler conduit for connecting misaligned components, and a method for making the same, where the spherical decoupler includes an inlet connection with a first spherical portion; an outer slider with a second spherical portion for pivotably mating with the first spherical portion and a tubular portion; an inner slider having a tubular portion in a telescoping relationship with the tubular portion of the outer slider and a third spherical portion; and an outlet connection with a fourth spherical portion for pivotably mating with the third spherical portion.

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Номер записи: 76
01-05-2014 дата публикации

Silencer and a method for producing same

Номер: US20140116801A1
Автор: Joachim Andre, Norbert Schug
Принадлежит: Individual

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.

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Номер записи: 77
17-02-2022 дата публикации

Vehicle exhaust system

Номер: US20220049640A1
Автор: Frederick Michael Baumgartner, Garrick Robert Zuver
Принадлежит: Tenneco Automotive Operating Co Inc

A vehicle exhaust system includes a tubular component having an inner surface and an outer surface such that the inner surface defines a primary exhaust gas flow path and wherein the tubular component extends along a central axis from an inlet end to an outlet end. The tubular component comprises at least one ridge along the central axis. The at least one ridge extends at least partly along a circumference of the tubular component. Each ridge includes a first portion angularly devoid of apertures and extending inwardly from the tubular component and a second portion disposed downstream of the first portion. The second portion is angularly devoid of apertures and extends inwardly from the tubular component. The tubular component also includes a plurality of spaced apertures positioned along a portion of the circumference of the tubular component and downsteam of the second portion.

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Номер записи: 78
30-01-2020 дата публикации

EXHAUST STRUCTURE OF VEHICLE

Номер: US20200031219A1
Автор: HASEGAWA Hirokazu, Ito Takahiro, Kamo Toshiaki, Morimoto Shohei
Принадлежит:

An exhaust structure of a vehicle is provided that can ensure an arrangement space for a mounted component below a floor panel and prevent thermal damage to the mounted component by reducing sizes of an engine and an exhaust silencer. An exhaust structure of a vehicle includes: an engine disposed in an engine bay formed in a front part of a vehicle; a silencer that reduces noise of exhaust gas from the engine and discharges the exhaust gas outside; an exhaust pipe that couples the engine and the silencer; and a battery unit disposed behind the engine and below a floor panel, the silencer being disposed between the engine and the battery unit. 1. An exhaust structure of a vehicle comprising:an engine disposed in an engine bay formed in a front part of a vehicle;an exhaust silencer that reduces noise of exhaust gas from the engine and discharges the exhaust gas outside;an exhaust pipe that couples the engine and the exhaust silencer; anda mounted component disposed behind the engine and below a floor panel,wherein the exhaust silencer is disposed between the engine and the mounted component.2. The exhaust structure of a vehicle according to claim 1 , wherein the engine is operated under a preset specific operating condition.3. The exhaust structure of a vehicle according to claim 1 , whereina drive motor that drives wheels and a generator driven by the engine are provided in the engine bay,the wheels are driven only by the drive motor, andthe mounted component is a battery that can store power supplied from the generator and supply the stored power to the drive motor.4. The exhaust structure of a vehicle according to claim 1 , wherein a heat shield wall is provided between the exhaust silencer and the mounted component.5. The exhaust structure of a vehicle according to claim 4 , wherein a width of the heat shield wall in a vehicle width direction is equal to or larger than a width of the mounted component in the vehicle width direction.6. The exhaust structure of a ...

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Номер записи: 79
31-01-2019 дата публикации

COMBINED EXHAUST GAS SILENCER

Номер: US20190032530A1
Автор: Ekhart Zdenek, Mach Zdenek
Принадлежит:

A combined exhaust gas noise silencer consisting of a system of hollow elements with a mutual housing comprising a front face of the silencer connected to the supply pipe of exhaust gases, and a rear face of the silencer with an outlet from the rear face of the silencer, where the original—inlet exhaust gas (İ) carrying a noise wave is divided into at least two flows—an exhaust gas flow (İ) carrying a shifted noise wave with delayed wave length, and an exhaust gas flow (İ) carrying a non-shifted noise wave, which are subsequently combined into a common exhaust gas flow (İ). 11321718536161517615876191615812147121461312141111101102121411271214871311. Combined exhaust gas noise silencer consisting of a system of hollow elements with a mutual housing () comprising a front face () of the silencer connected to the exhaust gas supply pipe () a rear face () of the silencer with an outlet () from the rear face of the silencer and chambers divided by transverse partitions , where the original inlet exhaust gas (İ) carrying a noise wave is divided into at least two flows: an exhaust gas flow (İ) carrying a shifted noise wave with delayed wave length , and an exhaust gas flow (İ) carrying a non-shifted noise wave , which are subsequently combined into a common exhaust gas flow (İ) , where the system of hollow elements contains an inlet expansion chamber () , connected to located between the front face () of the silencer and the inlet transverse partition () , and the common outlet expansion and mixing chamber () located between the outlet transverse partition () and the rear face () of the silencer , wherein between the inlet transverse partition () and the outlet transverse partition () one or more inner expansion chambers () of the non-delayed flow are arranged in the direction of the noise wave passage , having an inlet opening () of the inner chamber in the inlet transverse partitions () and having inlet openings () of the common outlet expansion and mixing chamber () in ...

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Номер записи: 80
31-01-2019 дата публикации

ENGINE AND ENGINE WORK MACHINE

Номер: US20190032531A1
Автор: HAGAWA Tatsuya
Принадлежит: Koki Holdings Co., Ltd.

Provided are an engine and an engine work machine. An engine in which a substantially box-shaped muffler made by joining a partitioning plate with inner and outer housings is directly secured to a cylinder, wherein the center axis of the cylinder is slanted rearward at an angle. The muffler has the partitioning plate inclined from the cylinder-side upper corner part toward the opposing lower corner part; and the muffler is secured at three points, i.e., two screws near an exhaust port, and an attachment screw near the upper corner part. Exhaust gas is discharged so as to flow forward along the upper wall surface of the muffler from near the end that is close to the cylinder in the upper surface of the muffler, and the exhaust gas is diffused, with the front corner part (curved surface part) being shaped as a curved surface having a large radius of curvature. 1. An engine , comprising: a cylinder , which is connected to a crankcase and forms a combustion chamber; and a muffler , which is secured to the cylinder;wherein the muffler comprises: an outer housing and an inner housing, which form an external wall of an expansion chamber; and a partitioning plate, which separates the expansion chamber into a first expansion chamber on an inner housing side and a second expansion chamber on an outer housing side; and the muffler is a substantial box shape formed by joining the outer housing and the inner housing with the partitioning plate; seen from an axis direction of the cylinder, the partitioning plate is disposed with a slope so that a distance from the partitioning plate to the cylinder decrease as the partitioning plate gets away from the crankcase;the outer housing comprises an upper wall surface, andan exhaust outlet is disposed on a cylinder side of the upper wall surface and discharges an exhaust gas toward a counter-cylinder side along a wall surface of the muffler.2. The engine according to claim 1 , wherein in the wall surface where the exhaust outlet is ...

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Номер записи: 81
30-01-2020 дата публикации

EXHAUST PIPE DEVICE OF SADDLE-RIDING VEHICLE

Номер: US20200032691A1
Автор: MIURA Katsuki
Принадлежит: HONDA MOTOR CO., LTD.

An exhaust pipe device of a saddle-riding vehicle, wherein a power unit is fixed to a body frame of a saddle-riding vehicle, includes an upstream-side exhaust pipe device for discharging exhaust gas from an internal combustion engine, a catalyst built-in pipe connected to a downstream end of the upstream-side exhaust pipe device, and a downstream-side exhaust pipe device connected to a downstream end of the catalyst built-in pipe. An exhaust muffler is connected to a downstream end of the downstream-side exhaust pipe device. The downstream-side exhaust pipe device has a main pipe portion and a branch pipe portion on a downstream side of an upstream end thereof where a branching portion is provided. An exhaust control valve is provided to the branching portion where the branch pipe portion is branched from the main pipe portion. The branch pipe portion overlaps, as seen in side view, with a vehicle center-side wall of the main pipe portion, and downstream ends of both the main and branch pipe portions are connected to the exhaust muffler. The above arrangement provides an exhaust pipe device wherein a branch pipe portion can be formed in a compact shape as viewed in side view, whereby excellent external appearance property is obtained, and a valve shaft of the exhaust control valve at the branching portion can be easily arranged with a required banking angle. 1. An exhaust pipe device of a saddle-riding vehicle wherein a power unit including an internal combustion engine is fixed to a body frame of a saddle-riding vehicle , the exhaust pipe device including an upstream-side exhaust pipe device having an upstream end thereof connected to the internal combustion engine to discharge an exhaust gas , a catalyst built-in pipe connected to a downstream end of the upstream-side exhaust pipe device , and a downstream-side exhaust pipe device having an upstream end thereof connected to a downstream end of the catalyst built-in pipe , and an exhaust muffler is connected to a ...

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Номер записи: 82
12-02-2015 дата публикации

Exhaust gas-treating device

Номер: US20150040525A1
Автор: Marcus Werni, Rainer Lehnen
Принадлежит: Eberspaecher Exhaust Technology GmbH and Co KG, VOLVO LASTVAGNAR AB

An exhaust gas-treating device ( 1 ) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing ( 2 ), which has a jacket ( 3 ) extending circumferentially on the side and two end-side end bottoms ( 4, 5 ). Maintenance is simplified with at least one mounting tube ( 6 ), which passes through one or the first end bottom ( 4 ) and into the outlet end ( 8 ) of which a particle filter ( 7 ) is plugged axially from the outside, with a deflecting housing ( 9 ). The deflecting housing ( 9 ) contains a deflecting chamber ( 10 ), and has at least one inlet ( 11 ) communicating with the deflecting chamber ( 10 ) and at least one outlet ( 12 ) communicating with the deflecting chamber ( 10 ). A fastening device ( 13 ) is provided for detachably fastening the respective inlet ( 11 ) at the respective outlet end ( 8 ) of the mounting tube ( 6 ).

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Номер записи: 83
08-02-2018 дата публикации

Muffler with venturi exhaust line

Номер: US20180038249A1
Автор: Gary Alan Williams, Shawn Leroy Gibson
Принадлежит: Gibson Performance Corp

Disclosed is a system for noise reduction including a tubular conduit and an exterior shell disposed about the tubular conduit. The tubular conduit can include a first section configured to be fluidly connected to an engine to allow exhaust gas to pass through the first section. The first section can include a plurality of openings. The tubular conduit can include a second section that is fluidly connected to the first section and is configured to accelerate the velocity of exhaust gas and decrease the pressure within the second tubular section. The second section can include a tube with a first tapered section that reduces in diameter, a second tubular section with a plurality of openings, and a third reverse-tapered section that expands in diameter. The tubular conduit can include a third section configured to be fluidly connected to the second section. The third section can include a plurality of openings.

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Номер записи: 84
24-02-2022 дата публикации

Exhaust System For Aerial Vehicle

Номер: US20220055765A1
Автор: Davenport, Foster Curtis Asa, III Raymond Samuel Trey
Принадлежит:

An aerial vehicle that can comprise a housing comprising an outer wall at least partially defining an interior space, a mechanical power source at least partially located in the interior space of the housing, an exhaust header in communication with the mechanical power source for communicating exhaust fluid from the mechanical power source, and an exhaust system comprising at least an exhaust chamber extending at least partially in the interior space of the housing. The exhaust chamber can be in communication with the exhaust header, and the exhaust system can comprise an exhaust outlet for communicating the exhaust fluid from the exhaust system outside the aerial vehicle. 1. An aerial vehicle , comprising:a housing comprising an outer wall at least partially defining an interior space;a mechanical power source at least partially located in the interior space of the housing;an exhaust header in communication with the mechanical power source for communicating exhaust fluid from the mechanical power source; andan exhaust system comprising at least an exhaust chamber extending at least partially in the interior space of the housing, the exhaust chamber being in communication with the exhaust header, and the exhaust system comprising an exhaust outlet for communicating the exhaust fluid from the exhaust system outside the aerial vehicle.2. The aerial vehicle of claim 1 , wherein the exhaust chamber comprises a reactive exhaust chamber with one or more reactive elements extending in the reactive exhaust chamber.3. The aerial vehicle of claim 2 , wherein the one or more reactive elements comprise at least a V-shaped element with two panels extending from a vertex.4. The aerial vehicle of claim 2 , wherein the one or more reactive elements comprise a plurality of V-shaped elements arranged in the reactive exhaust chamber so that a convex side of a V-shaped element of the plurality of V-shaped elements faces a concave side of another V-shaped element of the plurality of V- ...

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Номер записи: 85
07-02-2019 дата публикации

METHOD AND SYSTEM FOR COOLANT TEMPERATURE SENSOR DIAGNOSTICS

Номер: US20190039437A1
Автор: Jentz Robert Roy, Martinez Vincent, Rejeti Sitaram, Sadahalli Arjun, Sharma Sanyam
Принадлежит:

Methods and systems are provided for on-board diagnostics of components of an exhaust gas heat recovery (EGHR) system including engine coolant temperature sensors coupled to the system. Degradation of one or more of a first coolant temperature sensor coupled upstream of a heat exchanger of the EGHR system and a second coolant temperature sensor coupled downstream of the heat exchanger may be indicated based on a difference between a modeled coolant temperature and a measured coolant temperature, the modeled coolant temperature based on one or more of heat transfer between a heater core and vehicle cabin, and heat transfer between exhaust flowing via the heat exchanger and coolant flowing through the heat exchanger. 1. A method , comprising:during exhaust flow from a vehicle engine across a heat exchanger having a coolant flowing therethrough,in response to a higher than threshold difference between a measured coolant temperature and a modeled coolant temperature which is based on heat transfer between a heat loss source and a vehicle cabin, indicating degradation of a first and/or a second coolant temperature sensor respectively coupled upstream and downstream of the heat exchanger.2. The method of claim 1 , wherein the heat loss source includes a heater core and a plurality of coolant lines of an on-board heating claim 1 , ventilation claim 1 , and air conditioning (HVAC) system.3. The method of claim 1 , wherein the measured coolant temperature includes a first measured coolant temperature upstream of the heat exchanger based on an input from the first coolant temperature sensor coupled to a coolant line entering the heat exchanger claim 1 , the modeled coolant temperature includes a first modeled coolant temperature upstream of the heat exchanger claim 1 , and indicating degradation of the first coolant temperature sensor coupled upstream of the heat exchanger is based on a higher than threshold difference between the first measured coolant temperature upstream ...

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Номер записи: 86
24-02-2022 дата публикации

METHOD FOR INTERLOCKING ENGINE EXHAUST SOUND WITH TRAVELING MODE AND EXHAUST SYSTEM FOR SMART VEHICLE

Номер: US20220056827A1
Автор: AHN Hyeon-Gyun
Принадлежит:

A method for automatically changing the engine exhaust sound in conjunction with the traveling mode implemented by the exhaust system applied to the vehicle may vary the valve opening of an electronic variable valve provided in a first tail pipe of first and second tail pipes of muffler discharging the exhaust gas coming from an engine by a mode recognition logic connected to an engine ECU to the atmosphere, and control the variation of the valve opening with the engine torque and the engine RPM based on a change in an accelerator pedal stroke in any one of a SMART DRIVE MODE-ECO state, a SMART DRIVE MODE-COMFORT state, and a SMART DRIVE MODE-SPORT state, implementing a quiet engine exhaust sound and a sporty engine exhaust sound depending on various vehicle traveling states provided by the SMART DRIVE MODE and increasing vehicle/engine outputs. 1. A method for interlocking an engine exhaust sound with a vehicle traveling mode , the method comprising:confirming the vehicle traveling mode in a SMART DRIVE MODE generated by a mode selection device of a traveling mode system; andperforming a SMART SHIFT control in which the engine exhaust sound is switched, the engine exhaust sound being generated by a muffler discharging an exhaust gas to an atmosphere according to a valve opening of an electronic variable valve, which is changed according to an accelerator pedal stroke, in the SMART DRIVE MODE.2. The method of claim 1 ,wherein the SMART DRIVE MODE includes: a SMART DRIVE MODE-SPORT state, a SMART DRIVE MODE-ECO state, and a SMART DRIVE MODE-COMFORT state, and includes: a sporty exhaust sound-based map and a quiet exhaust sound-based map corresponding to each state.3. The method of claim 2 ,wherein the performing of the SMART SHIFT control includes:controlling to automatically switch the SMART DRIVE MODE, which enters one of the SMART DRIVE MODE-SPORT state, the SMART DRIVE MODE-ECO state, and the SMART DRIVE MODE-COMFORT state by confirming the accelerator pedal ...

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Номер записи: 87
07-02-2019 дата публикации

Internal straight core

Номер: US20190040776A1
Автор: Carter Reginald Bernard
Принадлежит:

Two end caps with metal straight tubing inserted into a muffler canister, Then affixed to a motorcycle header pipes that's connected to a combustion engine, Particularly a motorcycle engine, Where exhaust gas discharges through both creating more engine performance and sound. 1A metal circular end cap with circular opening in the center.A metal circular tubing.The internal straight core is inserted into a muffler canister, fastened to it.. An engine exhaust assembly, comprising a metal circular end cap with metal tab with a circular opening in the center The present invention relates to an exhaust system for a motorcycle engine more particularly the invention relates to a internal straight core assembly having a particular arrangement of parts and overall shape.The invention provides a internal straight core assembly for a muffler canister controlling exhaust gas flow from a motorcycle engine, The internal straight core is position inside of a muffler canister making a unique sound and performance...

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Номер записи: 88
16-02-2017 дата публикации

MUFFLER FOR AUTOMOBILE

Номер: US20170044943A1
Автор: Bartlett William Lee
Принадлежит:

A muffler for an exhaust system of a gas combustion engine, which comprises a muffler body () connected to an exhaust pipe inlet (), an exhaust pipe outlet () to the tailpipe connected to the muffler body (), and adjacent baffles () within the muffler body (), characterized in that the exhaust pipe inlet (), the exhaust pipe outlet ( ) and the adjacent baffles () are in line without significant restriction to gas exhaust flow and having baffle openings () and baffle louver openings () to the central muffler chamber (), whereby the central muffler chamber route () is generally a straight line from the exhaust inlet pipe () to the exhaust pipe outlet (). 114-. (canceled)15. An automotive muffler , comprising:an elongated body having an axis and defining a muffler chamber therewithin, the muffler chamber extending along the axis;an exhaust inlet and an exhaust outlet which are each formed in the body and communicate with the muffler chamber, an exhaust flow path extending between the exhaust inlet and the exhaust outlet; and a peripheral surface that is attached to and abuts the body along the length of the baffle so that a baffle chamber is defined between the baffle and a portion of the body, the baffle chamber being separated from the muffler chamber by the baffle, with the muffler chamber being defined between the baffle and a portion of the body;', 'an upstream portion extending in a direction transverse to the axis so as to narrow the exhaust flow path;', 'a downstream portion extending in a direction transverse to the axis so as to broaden the exhaust flow path, the upstream and downstream portions being contiguous and meeting at a baffle bend;', 'at least one upstream aperture formed through the upstream portion so as to facilitate communication between the muffler chamber and the baffle chamber; and', 'at least one downstream aperture formed through the downstream portion so as to facilitate communication between the baffle chamber and the muffler chamber., ' ...

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Номер записи: 89
08-05-2014 дата публикации

ACOUSTIC DAMPING SYSTEM FOR A COMBUSTOR OF A GAS TURBINE ENGINE

Номер: US20140123649A1
Автор: PORTILLO BILBAO JUAN E., RAJARAM RAJESH, YOU DANNING
Принадлежит:

An acoustically dampened gas turbine engine having a combustor with an acoustic damping system is disclosed. The acoustic damping system may be formed from an acoustic damping body having at least one orifice configured to receive a combustor nozzle assembly. The acoustic damping body may be positioned in a head region of a combustor basket and may include one or more orifices in the acoustic damping body. The acoustic damping system may mitigate longitudinal mode dynamics thereby increasing an engine operating envelope and decreasing emissions. 1. An acoustic damping system for a combustor of a gas turbine engine , comprising:an acoustic damping body having at least one orifice configured to receive a combustor nozzle assembly; andat least one orifice in the acoustic damping body and positioned between an inner edge defining the at least one orifice and an outer edge of the acoustic damping body.2. The acoustic damping system of claim 1 , wherein the acoustic damping body is formed from a material shaped in a flat plane having an upstream side and a downstream side that have the inner and outer edges extending therebetween.3. The acoustic damping system of claim 1 , wherein the outer edge is generally cylindrical.4. The acoustic damping system of claim 1 , wherein the at least one orifice in the acoustic damping body comprises a plurality of orifices in the acoustic damping body.5. The acoustic damping system of claim 4 , wherein the plurality of orifices in the acoustic damping body are formed from an inner ring of orifices and an outer ring of orifices.6. The acoustic damping system of claim 5 , wherein the inner ring of orifices and an outer ring of orifices are concentric.7. The acoustic damping system of claim 5 , wherein the acoustic damping body having at least one orifice configured to receive a combustor nozzle assembly comprises at least one center orifice configured to receive a combustor nozzle assembly.8. The acoustic damping system of claim 7 , ...

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Номер записи: 90
03-03-2022 дата публикации

SILENCING APPARATUS AND METHOD FOR MANUFACTURING SILENCING APPARATUS

Номер: US20220065144A1
Автор: Sugimoto Hidetoshi, Yamauchi Kunitaka
Принадлежит: SANKEI GIKEN KOGYO CO., LTD.

A silencing apparatus is provided with a shell, ventilation pipes communicating with the inside of the shell, insertion holes which are respectively formed in the shell so as to have sizes smaller than surrounding skirt parts and allow the ventilation pipes to be loosely inserted in, and partitions partitioning the inside of the shell. In the silencing apparatus, at least, a sound-absorbing chamber partitioned by the partition and positioned adjacent to the insertion hole is filled with a sound-absorbing fiber material, and a sound-absorbing fiber material filling gap between the insertion hole and the ventilation pipe is closed by an annular closing member. To provide a silencing apparatus allowing a sound-absorbing chamber to be filled with sound-absorbing fiber material without a gap, even in a complicated configuration having the inside of a shell partitioned by a partition.

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Номер записи: 91
03-03-2022 дата публикации

PANEL ASSEMBLY AND AFTERTREATMENT ASSEMBLY INCLUDING PANEL ASSEMBLIES

Номер: US20220065145A1
Автор: Cassidy Theron J., Kumar Samuel S., Peters Scott M., Strauser Courtney E.
Принадлежит: CATERPILLAR INC.

A panel assembly includes a panel member, a frame member, and at least one first bar member, and at least one second bar member. The at least one first bar member and the at least one second bar member divide the panel member into a plurality of first areas defining a first height and a first width. The panel assembly also includes a plurality of support arrangements for dividing each first area into a plurality of second areas. Each support arrangement includes a first support member defining a first length such that the first width defined by the first area is greater than the first length. Each support arrangement also includes a second support member defining a second length such that the first height defined by the first area is greater than the second length. 1. A panel assembly comprising:a panel member defining a longitudinal axis;a frame member secured to the panel member;at least one first bar member extending along the longitudinal axis of the panel member, the at least one first bar member being secured to the panel member and the frame member;at least one second bar member extending substantially perpendicular to the longitudinal axis of the panel member, the at least one second bar member being secured to the panel member and the frame member, wherein the at least one first bar member and the at least one second bar member divide the panel member into a plurality of first areas defining a first height and a first width; and a first support member extending along the longitudinal axis of the panel member, the first support member defining a first length such that the first width defined by the first area is greater than the first length; and', 'a second support member secured to the first support member and extending substantially perpendicular to the first support member, the second support member defining a second length such that the first height defined by the first area is greater than the second length., 'a plurality of support arrangements ...

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Номер записи: 92
03-03-2022 дата публикации

EXHAUST GAS PURIFICATION SYSTEM WITH AIR INJECTION

Номер: US20220065149A1
Автор: CHEN CHUN YU, CHEN Shau Lin
Принадлежит:

The present invention relates to an exhaust gas purification system comprising two catalytic sub-systems, wherein the first catalytic sub-system is for conversion of NOx, HC, CO and optionally particulate matter, and the second sub-system is for conversion of CO. The second sub-system locates at the downstream of the first catalytic sub-system. An air injection is positioned between the first catalytic sub-system and second catalytic sub-system.

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Номер записи: 93
26-02-2015 дата публикации

Tailor to Fit Muffler

Номер: US20150053501A1
Автор: Baumgartner Frederick M., Bednarz David R., Carr Richard T., Singh Deep K., Walworth Bradley B.
Принадлежит:

A muffler includes a shell, baffles, and a plurality of pipes. The shell defines first and second end cavities and a central cavity. The end cavities have larger cross-sectional areas that a cross-sectional area of the central cavity. The baffles cooperate to form multiple chambers within the shell. A first inlet directs a first portion of the exhaust into a first chamber. A second inlet directs a second portion of the exhaust into a second chamber. A first pipe extends through first, third and fourth baffles and includes an inlet in the fourth chamber. The first pipe directs exhaust from the fourth chamber to a first outlet at the first end cavity. A second pipe extends through the second, third and fourth baffles and includes an inlet in the third chamber. The second pipe directs exhaust from the third chamber to a second outlet at the second end cavity. 1. A method of manufacturing a muffler for an exhaust system of an internal combustion engine , the method comprising:providing a flat, one-piece sheet metal blank having first and second opposing edge portions;forming the blank into a tubular shell by bending the blank so that the first and second edge portions face each other and fixing the first and second edge portions in contact with each other, the tubular shell defining a central cavity and first and second end cavities, the first and second end cavities having larger cross-sectional areas than a cross-sectional area of the central cavity;inserting a first subassembly through a first axial end of the tubular shell and positioning the first subassembly in the central cavity, the first subassembly including first and second pipes and a plurality of baffles;inserting a second subassembly into the first axial end of the tubular shell and fixing the second subassembly in the first end cavity such that a first outlet pipe of the second subassembly is fluidly connected with the first pipe of the first subassembly; andinserting a third subassembly into a second ...

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Номер записи: 94
14-02-2019 дата публикации

MARINE EXHAUST SYSTEM

Номер: US20190048778A1
Автор: Kudawe Pritam Ramchandra, Rusch Sean A., Sheridan Brian M.H., Sierakowski Tyler J., Thorn Christopher D.
Принадлежит:

An exhaust system provides an oxygen sensor within a balance tube for use with a marine engine. The balance tube is configured to protect the oxygen sensor from water that infiltrates the exhaust system. The exhaust system further provides a mounting system configured to attach to an engine such that an axial load placed on the exhaust system. 1. An exhaust system comprising:a first manifold;a second manifold; anda balance tube including an oxygen sensor, the balance tube in fluid communication with the first manifold and the second manifold.2. The exhaust system of claim 1 , wherein the oxygen sensor is configured to measure an exhaust gas concentration of oxygen in the first manifold and the second manifold.3. The exhaust system of claim 1 , wherein the muffler includes a body with an internal volume claim 1 , a first baffle and a second baffle located within the internal volume.4. The exhaust system of claim 3 , wherein the first baffle and the second baffle divide the internal volume into a first chamber claim 3 , a second chamber claim 3 , and a third chamber.5. The exhaust system of claim 4 , wherein the first manifold extends into the first chamber of the muffler and extends through the muffler to the third chamber.6. The exhaust system of claim 4 , wherein the second manifold extends into the third chamber of the muffler and extends through the muffler to the first chamber.7. The exhaust system of claim 3 , wherein each of the first baffle and the second baffle includes perforations to allow exhaust gas to flow through the first baffle and the second baffle.8. The exhaust system of claim 3 , wherein the first manifold claim 3 , the second manifold or the first and second manifolds extend through an opening in each of the first baffle and the second baffle.9. The exhaust system of further comprising a muffler including a first baffle and a second baffle.10. The exhaust system of claim 1 , wherein the muffler includes mounting brackets that are configured to ...

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Номер записи: 95
25-02-2016 дата публикации

EXHAUST DEVICE OF MOTORCYCLE

Номер: US20160053659A1
Автор: Senda Atsushi, Tsubone Toshiyuki
Принадлежит:

In an exhaust device in a motorcycle including an article storage pannier at a side portion of a rear portion of the motorcycle, a rear end surface of a muffler which discharges exhaust gas to the outside is located frontward of a front end surface of the pannier, and an outlet pipe of the muffler is curved such that the exhaust gas is discharged to a region below the pannier. An axis of the muffler is inclined so as to extend rearward and upward. A plurality of the outlet pipes are aligned vertically, and the upper outlet pipe is curved. 1. An exhaust device in a motorcycle including a pannier at a side portion of a rear portion of the motorcycle , whereinthe exhaust device comprising a muffler configured to discharge exhaust gas to an outside, the muffler having a rear end surface located frontward of a front end surface of the pannier, the muffler having an outlet pipe curved such that the exhaust gas is discharged to a region below the pannier.2. The exhaust device in the motorcycle as claimed in claim 1 , wherein a longitudinal axis of the muffler is inclined so as to extend rearward and upward.3. The exhaust device in the motorcycle as claimed in claim 1 , wherein a plurality of the outlet pipes are disposed one above the other claim 1 , and the upper outlet pipe is curved.4. The exhaust device in the motorcycle as claimed in claim 3 , wherein the lower outlet pipe has a straight shape to discharge the exhaust gas toward below the pannier.5. The exhaust device in the motorcycle as claimed in claim 1 , wherein the outlet pipe protrudes rearward from the rear end surface of the muffler claim 1 , and an upper portion of an outer peripheral surface of a rear portion of the muffler is inclined so as to approach the axis of the muffler towards the rear.6. The exhaust device in the motorcycle as claimed in claim 1 , wherein:the front end surface of the pannier is inclined frontward such that an upper portion thereof is located frontward of a lower portion thereof; ...

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Номер записи: 96
25-02-2016 дата публикации

METHOD FOR ENCASING A BODY OF AN EXHAUST GAS SYSTEM

Номер: US20160053662A1
Автор: Weidner Michael, Weidner Thomas
Принадлежит:

A method for encasing a body of an exhaust gas system with a housing which is wound around the body. Using a winding method, the body is placed in a loop formed by a belt-shaped conveyor element that can be driven in a conveyor device, wherein the conveyor element is seated against the outer casing face at a wrapping angle u of at least 270 degrees. Starting with a first edge, the metal strip is then introduced in a conveyor device between the body and the conveyor element, is drawn into the gap between the body and the conveyor element and is bent around the body until the body is encased at least twice by the metal strip. 1. A winding device for encasing a body of an exhaust system with a metal strip as the housing , comprising:a) at least two parallel arranged side pieces and several axles and shafts mounted in the side pieces and able to rotate and situated perpendicular to the side pieces, wherein the side pieces and the axles and shafts form a machine housing,b) a belt-shaped conveyor element, which is mounted on the axles and shafts and can be driven in at least one of the directions of conveyance by at least one driving device of the winding device, provided on the shafts,c) between the side pieces, two deflection elements, arranged parallel to the axles, forming a gap running parallel to the axles, with the conveyor element mounted on them in sliding manner,d) a winding space beneath the gap, bounded by the axles and situated between the side pieces,e) wherein the belt-shaped conveyor element projects on either side of the gap beyond the two deflection elements into the winding space and forms a loop in the winding space, in which the body being wrapped can be placed.2. The winding device according to claim 1 , wherein the conveyor element is closed endlessly or open claim 1 , and at least two axles and at least two shafts are provided claim 1 , around which the conveyor element is passed claim 1 , while at least the shaft can be driven directly or ...

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Номер записи: 97
25-02-2016 дата публикации

MUFFLER AND ITS CORRESPONDING MANUFACTURING METHOD

Номер: US20160053664A1
Автор: Fujita Tomoyuki, Hiramatsu Koichi, MIWA Ken, Nojiri Isao, SHIKATA Kenji, SUGI Kazuki, Yamamoto Akiyoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A manufacturing method for a muffler includes: a trimming step, of cutting out a dogleg shaped muffler body member; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller; a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction; an insertion step of inserting an inner structural member into the inside of the tubularly-processed muffler body member; a second joining step of joining caps to opening portions of the tubularly-processed muffler body member; and a third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member. 1. A manufacturing method for a muffler comprising:a trimming step of cutting out a dogleg shaped muffler body member from a planar plate;a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller;a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction of the dogleg shaped muffler body member;an insertion step of inserting an inner structural member to the inside of the tubularly-processed muffler body member;a second joining step of joining caps to opening portions of the tubularly-processed muffler body member to seal the tubularly-processed muffler body member; anda third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member.2. The manufacturing method according to claim 1 , wherein in the first and second joining steps claim 1 , a swaging process is used to join ...

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Номер записи: 98
13-02-2020 дата публикации

Exhaust Flap for an Exhaust System of a Motor Vehicle, Controller for Such an Exhaust Flap, and Method for Operating Such an Exhaust Flap

Номер: US20200049040A1
Автор: DREES Rainer, ZSCHIEGNER Mario
Принадлежит:

An exhaust flap for an exhaust system of a motor vehicle, which has an internal combustion engine and an electronic processing device for a closed-loop control of the internal combustion engine, has a valve element, an actuator for moving the valve element, and a dedicated electronic processing device. The dedicated electronic processing device is configured to receive a first signal which is provided by the electronic processing device of the motor vehicle and which characterizes a first position of the valve element, generate a second signal which characterizes a second position of the valve element as a function of the received first signal, and transmit the second signal to the actuator. The actuator moves the valve element into the second position based on the received second signal. 1. An exhaust flap for an exhaust system of a motor vehicle which has an internal combustion engine and an electronic processing device for a closed-loop control of the internal combustion engine , comprising:a valve element;an actuator, wherein the valve element is movable by the actuator; and receive a first signal which is provided by the electronic processing device of the motor vehicle and which characterizes a first position of the valve element;', 'generate a second signal which characterizes a second position of the valve element, wherein the second position differs from the first position, as a function of the received first signal; and', 'transmit the second signal to the actuator;, 'a dedicated electronic processing device which is configured towherein the actuator is configured to receive the transmitted second signal from the dedicated electronic processing device and move the valve element into the second position based on the received second signal.2. The exhaust flap according to claim 1 , wherein the valve element is movable in an adjustment range which comprises the second position and a plurality of further positions claim 1 , wherein the exhaust flap is ...

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Номер записи: 99
13-02-2020 дата публикации

Exhaust Gas System for an Internal Combustion Engine

Номер: US20200049055A1
Автор: BLUEMELHUBER Uli, HOEFLER Carina
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An exhaust gas system for an internal combustion engine of a single-track vehicle can be arranged on an exhaust gas outlet of a cylinder head. A first lambda probe close to the cylinder head is provided in the exhaust gas system and is arranged before an exhaust gas cleaning system in the flow direction of an exhaust gas. A second lambda probe is provided in the exhaust gas system after the exhaust gas cleaning system in the flow direction of the exhaust gas. The second lambda probe is arranged at a maximum distance away from the exhaust gas cleaning system equal to four times the diameter of the exhaust gas cleaning system. As a result of the design, the lambda probe is arranged in the non-visible region of the single-track vehicle, while simultaneously examining the quality of the exhaust gas cleaning. 1. An exhaust-gas system for an internal combustion engine of a single-track vehicle , wherein the exhaust-gas system is arrangeable at an exhaust-gas outlet of a cylinder head of the internal combustion engine , comprising:a first lambda probe situated close to the cylinder head in the exhaust-gas system, which first lambda probe is arranged upstream of an exhaust-gas purification system in relation to a flow direction of an exhaust gas;a second lambda probe provided in the exhaust-gas system downstream of the exhaust gas purification system in relation to the flow direction of the exhaust gas, whereinthe second lambda probe is arranged in the exhaust-gas system so as to be at a distance from the exhaust gas purification system of at most four times a diameter of the exhaust-gas purification system.2. The exhaust-gas system according to claim 1 , further comprising:a muffler arranged between the cylinder head and the first lambda probe.3. The exhaust-gas system according to claim 2 , whereinthe muffler is a premuffler.4. The exhaust-gas system according to claim 1 , whereinthe first lambda probe is arranged in the exhaust-gas system at a distance from the cylinder ...

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Номер записи: 100