WO2009099399A1 - Silencieux d’échappement à création de vide pour moteurs à combustion interne - Google Patents

Silencieux d’échappement à création de vide pour moteurs à combustion interne Download PDF

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Publication number
WO2009099399A1
WO2009099399A1 PCT/TR2008/000118 TR2008000118W WO2009099399A1 WO 2009099399 A1 WO2009099399 A1 WO 2009099399A1 TR 2008000118 W TR2008000118 W TR 2008000118W WO 2009099399 A1 WO2009099399 A1 WO 2009099399A1
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WO
WIPO (PCT)
Prior art keywords
muffler
air
exhaust
exhaust pipe
air pump
Prior art date
Application number
PCT/TR2008/000118
Other languages
English (en)
Inventor
Özel Zafer
Original Assignee
Zafer Oezel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zafer Oezel filed Critical Zafer Oezel
Priority to JP2010545834A priority Critical patent/JP2011513613A/ja
Publication of WO2009099399A1 publication Critical patent/WO2009099399A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/18—Silencing apparatus characterised by method of silencing by using movable parts having rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • F01N1/065—Silencing apparatus characterised by method of silencing by using interference effect by using an active noise source, e.g. speakers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/06—Exhaust treating devices having provisions not otherwise provided for for improving exhaust evacuation or circulation, or reducing back-pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2270/00—Mixing air with exhaust gases
    • F01N2270/08—Mixing air with exhaust gases for evacuation of exhaust gases, e.g. in tail-pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
    • F01N2290/02—Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement
    • F01N2290/06—Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement driven by auxiliary drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/30—Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow

Definitions

  • This invention relates to a muffler which is designed to create vacuum by reducing the back pressure at the exhaust of internal combustion engines below the atmospheric pressure, and keep it at a certain constant value independently of the engine operating conditions, and which is effective basically in sound absorption and mechanical frequency interference and, in addition, can also make use of the electronic frequency interference effect, both due to its structure.
  • the frequency interference chamber allows the interference of sounds of varying frequencies to reduce the sound intensity.
  • the flow from the inlet pipe to the outlet pipe is enabled through perforations. It is a system where the back pressure is high while the sound intensity is reduced most optimally. Whenever it is desirable to reduce the back pressure, this muffler is replaced with one of the following.
  • This muffler replaces a traditional muffler and is commonly used for Georgia purposes. After the exhaust pipe enters in this muffler, it becomes perforated. The muffler function is performed by glass wool or rock wool wrapped around it. A somewhat smaller body appearing to be a traditional muffler includes all.
  • This muffler is used for microwave purposes. High-frequency exhaust gases pass all through the muffler. Low-frequency exhaust gases exiting outwards from the perforated exhaust pipe interfere with high-frequency sound waves exiting from the end of the muffler, causing a reduction in the sound intensity.
  • This is another type of mufflers, which is used for microwave purposes. It comprises a perforated exhaust pipe and a Plexiglas body enclosing it. When exhaust gases passing through the exhaust pipe enters through the conical surface of the Plexiglas body, they pass through perforations owing to the air with an increased velocity and a reduced pressure and cause a frequency interference with high-velocity air, thus causing a reduction in the sound intensity.
  • This muffler creates vacuum owing to a venturi (5) located at the center of its body, which extends all therethrough.
  • This venturi is a shape developed by connecting two conical nozzles (5.1 and 5.3) by their ends entering into a narrow and perforated cylinder (5.2) at the center, whereby, based on Bernoulli Equation for gases, the speed of the air sucked into the nozzle from the wider end can give rise upto the speed of sound inside the throat, which is the narrowest section of the venturi. Depending on this speed, the air pressure in this section drops down drastically below the atmospheric pressure to create vacuum, and the gases outgoing from the engine thus are sucked into this vacuum medium.
  • the muffler is able to reduce the sound intensity of gases expanding into the body at the extreme level by their passing first through the mechanical muffler ensuring sound absorption and frequency interference and then, if desirable for a quieter environment, through an active noise control system ensuring a second-stage electronic sound frequency interference.
  • a discharge pipe to deliver exhaust gases from the motor into said discharge pipe; a nozzle in said discharge pipe through which a flow of air is interspersed between the impulses of exhaust gases across the mouth of said nozzle; a check valve located centrally within said nozzle for preventing a reverse flow therethrough; and a collector to guide a flow of air through said nozzle, said delivery pipe extending through a sleeve in said collector.
  • a muffler for automotive gas engines including, in combination, an elongated cooling and muffling chamber having a longitudinal axis and an outlet at one end, an imperforate cylindrical engine exhaust pipe extended into the other end of said chamber axially thereof, a funnel air collector extending externally of the chamber for freely admitting atmospheric air into said chamber, said funnel having its discharge end tapered and extending into the muffling chamber substantially beyond the end of the engine exhaust pipe and spaced from and surrounding the discharge of said engine exhaust pipe whereby the hot exhaust gas as it discharges into said cooling and muffling chamber is met with a surrounding condensed flow of cooling air.
  • an oval shaped elongated expansion chamber In a muffler for an internal combustion engine, an oval shaped elongated expansion chamber, a single exhaust pipe leading substantially tangentially into said chamber at approximately the longitudinal center of said oval, an air passage extending longitudinally through the central portion of said oval chamber, and a plurality of relatively small exhaust outlets leading from the expansion chamber into said air passage and distributed over a substantial area on both sides of said central exhaust inlet pipe.
  • the muffler embodies an elongated cylindrical shell which houses the operating parts and which is of a diameter and length adopted to the available space on an automobile for the accommodation of a muffler.
  • the shell is closed at its ends by flanged dish- shaped heads which are secured to the ends the cylinder wall by welding or otherwise.
  • a flanged transverse partition wall is secured in the shell and closes off a portion of the shell to provide a chamber.
  • the head near to partition wall has a central opening and a tubular extension forming the inlet and adopted for connection to the exhaust pipe of the engine.
  • a muffler comprising an enlarged tubular inner section open at both ends and adapted to be interposed in the exhaust line of an explosive engine and formed with a plurality apertures rearwardly extending deflectors overlong the apertures, an outer shell having a tapered rear portion sealed upon the exhaust line in rear of the inner tubular section, said tapered rear portion co acting with the exhaust pipe and inner tubular section in forming a gas trap, said shell having the front end portion flared outwardly and open to the atmosphere to scoop air into the space between the inner section and outer shell and into the gas trap, a plurality of longitudinally extending tubes disposed exteriorly of the outer shell and having their front end portion flared the rear ends of the tubes being open to the atmosphere, and rearwardly inclined branch pipes communicating with the tubes and with the gas trap, said tubes and branch pipes withdrawing gases from the gas trap by suction of air scooped into the flared ends of the tubes and passing across the discharge ends of branch pipes.
  • the muffler device comprises essentially an inner tapered shell and an outer tapered shell spaced therefrom by means of a plurality of longitudinally extending circumferentially spaced and disposed spacer bars, the latter being suitably secured as by welding or by other means to said inner and outer shells.
  • This arrangement provides a plurality of spaced arcuate longitudinally extending chambers between the said inner and outer shell elements.
  • an enlarged hollow head containing a pair of diametrically opposed tapered conduits which are reduced in area at their outer ends.
  • the extreme forward end of the muffler is connected by welding to the inner end of a cylindrical air flow pipe, the outer open end of which is freely exposed to the atmosphere.
  • a suction air muffler having a muffler case connected to the air cleaner, wherein a suction pipe connected at one end to the air inlet port formed in the muffler case extends through the muffler case. Air drawn by suction into the suction pipe passes through the muffler case before being delivered to the air cleaner so that the noise produced by the air drawn by suction into the suction pipe of a motorcycle can be minimized.
  • a method and apparatus are provided for reducing back pressure within an exhaust system for an internal combustion engine by creating a venturi within the exhaust system and forcing air through the venturi to create suction for drawing exhaust gases away from the exhaust system.
  • the exhaust system of a conventional automobile is modified by coupling one end of an air guide pipe to the tailpipe of the automobile near the outlet of the tailpipe and at an acute angle thereto for creating a venturi. Air is forced into the opposite end of the air guide pipe by an air scoop or a fan, and the forced air is guided through the outlet of the tailpipe for providing suction which draws exhaust gases out of the tailpipe.
  • a secondary air introducing apparatus for introducing secondary air into the exhaust manifold of an internal combustion engine.
  • the apparatus includes a secondary air introducing passage connected between the air cleaner and the exhaust manifold of the engine, a check valve in the passage arranged to operate in response to pulsation pressure in the exhaust manifold to supply clean secondary air thereto, a first expansion chamber interposed in the passage on an upstream side of the check valve, and a second expansion chamber interposed in the passage on an upstream side of the first chamber.
  • At least the check valve and the first chamber are fixedly mounted on the intake manifold.
  • a noise attenuating tube mounted in an engine compartment air intake hood duct of a motor vehicle to attenuate engine air intake noise in the hood is disclosed.
  • An engine exhaust apparatus comprises a sound suppressing section for lowering the exhaust noise level as an exhaust gas discharged from the exhaust port passes through it.
  • the exhaust apparatus is provided with an ejector section for introducing secondary air into the exhaust gas delivered from the sound suppressing section and mixing the gases, and a post-treatment section for purifying the gas mixture delivered from the ejector section.
  • the exhaust gas discharged from an exhaust manifold gets into the ejector section through the sound suppressing section, and is then purified in the post- treatment section. Therefore, the ejector effect cannot be reduced by the sound suppressing section which is subject to high flow resistance.
  • the exhaust noise level can be lowered with the ejector effect of the introduction of the secondary air improved considerably, and low cost and simple construction can be enjoyed.
  • a muffler for a two-stroke internal combustion engine has an expansion chamber into which a rush of exhaust gas is introduced from the engine.
  • the muffler In the vicinity of an exhaust gas inlet from the engine into the expansion chamber, the muffler has an external air intake for external air to be suctionally introduced into the expansion chamber by the rush of exhaust gas. With the external air introduced, carbon monoxide (CO) emission into the ambient is reduced.
  • CO carbon monoxide
  • a muffler for an internal combustion engine has an expansion chamber into which exhaust gas from the engine is introduced.
  • the expansion chamber has a double wall, with an inner panel of the double wall having exhaust gas discharge portions with respective blowout holes for introducing the exhaust gas from the expansion chamber into an air space in the double wall. From the air space , the exhaust gas is vented to the ambient through a discharge hole in an outer panel of the double wall.
  • a spark arrester screen covers the discharge hole.
  • An exhaust conditioning device comprising a housing having an entrance duct, an exit duct, and a hollow interior defined within the housing between the entrance duct and the exit duct; a conical baffle carried coaxially within the housing downstream of the entrance duct and configured to form a generally outwardly extending compression chamber therebetween: and a frustoconical baffle carried coaxially within the housing downstream of the conical baffle and upstream of the exit duct and configured to form a generally inwardly extending compression chamber; wherein the conical baffle cooperates with the housing to form a conical vacuum chamber and the frustoconical baffle cooperates with the housing to form a substantially annular vacuum chamber, downstream of the conical vacuum chamber.
  • a muffler for an internal combustion engine has a vertically elongated expansion chamber into which an exhaust gas from the exhaust port of internal combustion engine is introduced.
  • the expansion chamber is separated level-wise into a first expansion chamber and a second expansion chamber by a partition plate.
  • An exhaust emission purifier formed of an oxidation catalyst is attached to the partition plate, thereby allowing the exhaust gas ejected from the exhaust port to be introduced into the second expansion chamber from the first expansion chamber via the exhaust emission purifier.
  • the exhaust emission purifier is spaced apart from the exhaust port by a predetermined distance in a direction orthogonal to an ejecting direction of the exhaust gas.
  • a venturi device is installed perpendicularly to the end of the vertical exhaust pipe of a truck thus resulting in the air flow through the venturi being at a 90 degree angle relative to the exhaust gases exiting the exhaust pipe.
  • the venturi device may be installed on automobiles and other motor vehicles after having appropriately modified exhaust systems.
  • a front aperture for air intake tapers in width to the back pressure relief port or nozzle being slightly greater than the exhaust port on the bottom portion thereof and then widens to form an air discharge port on the rear portion thereof that is substantially wider and longer than the air intake port thereby creating an air pressure differential.
  • This subject invented muffler drops the back pressure at the exhaust outlet below the atmospheric pressure owing to the vacuum created at the throat (5.2) of its venturi- shaped body, using a flow of air generated by means of a double stage, high and constant speed air pump (vaneaxial fan) (2) driven by a high-voltage direct-current motor (1.1 or 1.7) supplied from the battery in the vehicle or a double stage, high and constant speed air pump (axial fan) (9.1 , 9.2, 9.3, 9.4, 9.5, 9.6) driven by a reaction turbine (8.7, 9.7, 9.8), operated by compressed air (8.5, 8,6) thereby speeding up the suction of exhaust gases into the venturi throat (5.2) and thereoutwards, and thus dropping the pressure, temperature and quantity of residual gases remaining in the pistons.
  • This causes an increased volumetric efficiency of the engine and ensures that more work can be done for the same piston volume, thereby increasing the engine power and providing fuel saving.
  • This subject invented muffler is a compact muffler that also carries out the functions of intermediate and final mufflers in a normal vehicle.
  • this muffler can also readily house in it an electronic active noise control system, which is the subject of another patent already granted to elseone.
  • the use of this system in this muffler the greatest disadvantage of which is known as the blockage of the exhaust gases upstream, is possible with a minimum loss of pressure.
  • This muffler can be used in motorcycles, powered marine vehicles having an internal combustion engine and can also be used efficiently in the exhausts of domestic and industrial power generators.
  • Figure 1 Usage in a front-engine vehicle
  • Figure 2 Usage in rear-engine vehicle
  • Figure 3 A muffler model where the air pump ensuring air suction through venturi is driven by means of a pulley-belt system from a direct-current electric motor outside the air channel.
  • Figure 3.1 A view from the outlet end of the muffler.
  • Figure 3.2 A longitudinal section-elevation of the muffler.
  • Figure 3.2.1 A longitudinal section-elevation of the driving motor and pulley system.
  • Figure 3.2.2 A longitudinal section-elevation of the air pump (vaneaxial fan) unit.
  • Figure 3.2.3 A longitudinal section-elevation of the air pump supporting pipe.
  • Figure 3.2.4 A longitudinal section-elevation of the housing of the active noise control system.
  • Figure 3.2.5 A longitudinal section-elevation of the venturi and nozzles.
  • Figure 3.2.6 A longitudinal section-elevation of the muffler and the vacuum chamber.
  • Figure 4 An alternative muffler model where the air pump ensuring air suction through venturi is directly driven by a direct-current electric motor inside the air channel.
  • Figure 4.1 A view from the outlet end of the alternative muffler.
  • Figure 4.2 A longitudinal section-elevation of the alternative muffler.
  • Figure 5 An alternative muffler model where the air pump ensuring air suction through venturi is driven by a reaction turbine located on the same body but outside the air channel, operated by compressed air.
  • Figure 5.1 A view from the outlet end of the alternative muffler.
  • Figure 5.2 A longitudinal section-elevation of the alternative muffler.
  • Figure 5.2.1 A longitudinal section-elevation of the pressure-air system and the unmoving body of reaction turbine.
  • Figure 5.2.2 A longitudinal section-elevation of the reaction turbine and air pump (turbopump) group on the move.
  • Figure 5.2.3 A longitudinal section-elevation of the body of the reaction turbine outlet- chamber.
  • Figure 5.3 A cross section-elevation of the body of the reaction turbine outlet- chamber.
  • Figure 5.4 A cross section-elevation of the turbopump group.
  • Figure 5.5 A cross section-elevation of the reaction turbine (unmoving) / air pump.
  • Figure 5.6 A cross section-elevation of the reaction turbine compressed-air inlet chamber.
  • Double-stage and high-speed air pump (vaneaxial fan) 2.1 Hub of the stage-one air pump 2.2 Hub of the stage-two air pump
  • Housing body of the active noise control system 4.1 Conical part of the housing body 4.2 Cylindrical part of the housing body
  • Venturi throat (cylindrical and perforated)
  • Venturi air intake nozzle inlet (cylindrical)
  • Thick perforated sheet allowing mechanical frequency interference and supporting the end plates of the vacuum chamber 6.5
  • Mechanical muffler and vacuum chamber body externally stiffened, resistant to the negative pressure in the vacuum chamber
  • Expansion cone of exhaust gases 8. Specially manufactured exhaust pipe having thereon the compressed-air system and moving vanes of the reaction turbine operated thereby.
  • a high-speed electric motor (1.1) operating with a high-voltage direct-current supply from the vehicle battery produced by using a voltage amplifier makes use of a pulley (1.2) fixed on the motor shaft to transmit its drive to another pulley (1.3) fixed on the air pump shaft via a high-speed and high-temperature resistant V-belt (1.4). It has a head support piece (1.5) to head-fix the electric motor
  • Support pieces (1.5 and 1.6) are fixed by inert-gas electric welding on the specially manufactured exhaust pipe (3.1) supporting the electric motor and air pump.
  • This shaft is centered by a self-lubricating, high-speed and high-temperature resistant bearings (2.6), which ensure that fans rotate with minimum friction at high speed.
  • the air pump takes drive from the electric-motor pulley (1.2) owing to the pump pulley (1.3) fixed on a shaft.
  • a housing-body (4) having a perforated surface area and containing the elements of an active noise control system begins conically (4.1) from a point near the middle of the venturi air suction nozzle (5.1) and then continues cylindrically (4.2).
  • Elements comprising the active noise control system include two microphones and a sound generator. The first microphone measures the main sound intensity and frequency and the noise control unit receiving such data generates a sound of the same intensity but of opposite frequency to ensure that the noise is damped as a result of the interference occurring therebetween. As a result of the measurement made with a second microphone put downstream of air and exhaust gases after the sound generator, a feedback is made to the control unit to ensure a fine adjustment on the sound generator.
  • An instrument pipe (4.3) projecting out of the perforated body exists to carry out the elements comprising the active noise control system and provide its air tightness.
  • There are two sets of guide vanes (4.4 and 4.5) each comprising of four vanes located at 90 degrees to each other circumferentially, centering the active noise control system inside the venturi air suction nozzle (5.1) and fixing the conical and cylindrical part of the housing.
  • the quantity of air coming from the air intake nozzle (5.3 and 5.4) in the throat area is 20 times as much the quantity of exhaust gases suctioned from that area.
  • the venturi (5) assembled in advance, is inserted into the muffler and vacuum chamber (6) from its larger side and welded onto the muffler and vacuum chamber body (6) at both ends by external inert-gas electric welding.
  • the holes perforated on the throat piece (5.2) are inclined 9 degrees towards the outlet of the throat in order to ease the suction of the exhaust gases at high speeds and avoid the reflection of the sound waves towards the inlet nozzle.
  • guide vanes (3.7) , circumferentially positioned at 45 degrees with respect to each other, that center and fix the direct- current electric motor inside the specially manufactured exhaust pipe (3.1). These guide vanes are used at the same time to break the circumferential rotation of the air flow created by the first stage axial fan ( 2.1 and 2.3) and ensure a linear movement of the air flow upto the second stage axial fan (2.2 and 2.4).
  • 8 additional guide vanes (3.5) positioned after the second stage fan ( 2.2 and 2.4), circumferentially at 45 degrees with respect to each other, have been used. The flow resistance caused by these guide vanes put perpendicularly to the flow is negligibly small. Inert-gas electric welding is used to fix these guide vanes on the exhaust pipe (3.1) and on the direct-current electrical motor (1.1).
  • a self-lubricating bearing, resistant to high temperature environment (9.8) externally fitted tight in between the exhaust pipe and the turbo-pump group provides support to the rotation of the turbo-pump group with a minimum friction.
  • the vanes located in the exhaust pipe and there-around are used to break the circumferential rotation of the air current created by the first axial fan (9.2, 9.4) and convey the air straightly to the second fan (9.3, 9.5).
  • the fans located at both ends of the air pump set are fixed on the rotating fan body (9.1) at the same angular position and their speed of rotation is the same as that of the reaction turbine. All manufacturing processes carried out on the turbo-pump body (9.6) are precise and the tolerances therefore are highly low.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Supercharger (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Le silencieux de cette invention comprend un moteur à courant continu à tension et vitesse élevées (1.1) alimenté par la batterie du véhicule et fixé extérieurement sur le tuyau d’échappement de fabrication particulière (3) du moteur ; un système d’entraînement résistant aux vitesses et températures élevées, composé d’une poulie (1.3) entraînée par l’intermédiaire d’une courroie en V (1.4) par une autre poulie (1.2) fixée sur l’arbre de moteur ; un arbre (2.3) entraîné par ce système et un système de palier (2.4) résistant aux vitesses et températures élevées, centrant l’arbre ; une pompe à air haut débit à deux étages (ventilateur axial) (2) contenant des moyeux (2.1 et 2.2) et des aubes (2.3 et 2.4) ; ou e variante, une pompe à air à deux étages (2.1, 2.3 et 2.2, 2.4) entraînée directement par un moteur électrique à courant continu à tension élevée (1.7) contenu dans un tuyau d’échappement de fabrication particulière (3) ; ou en variante, une turbine à réaction (8.7, 9.7, 9.8) située sur un tuyau d’échappement de fabrication particulière (8.1, 8.2, 8.3, 8.4) qui fonctionne avec de l’air comprimé haut débit (8.5, 8.6) obtenu depuis le véhicule, une pompe à air à vitesse élevée et à deux étages (ventilateur axial) (9.1, 9.2, 9.3, 9.4, 9.5, 9.6) fixée sur cette turbine, les deux éléments tournant en même temps, et une chambre de dilatation (10.1, 10.2, 10.3) dans laquelle l’air comprimé faisant tourner la turbine se dilate et, de là, se mélange dans le tuyau d’échappement, un tuyau d’échappement de fabrication particulière (3) fixant et centrant le moteur électrique de façon extérieure et intérieure et la pompe à air de façon intérieure ; un boîtier de système de commande active de bruit (4) positionné de manière à provoquer des pertes de pression minimales ; un venturi composé de deux buses (5.1 et 5.3) reliées mutuellement sur les extrémités les plus étroites à un cylindre étroit perforé de trous inclinés, ce qui crée un vide dans son étranglement (5.2) selon l’équ
PCT/TR2008/000118 2008-02-06 2008-10-13 Silencieux d’échappement à création de vide pour moteurs à combustion interne WO2009099399A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010545834A JP2011513613A (ja) 2008-02-06 2008-10-13 内燃機関用真空生成排気消音器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2008/00740A TR200800740A2 (tr) 2008-02-06 2008-02-06 İçten yanmalı motor eksozunda vakum yaratan susturucu.
TR2008/00740 2008-02-06

Publications (1)

Publication Number Publication Date
WO2009099399A1 true WO2009099399A1 (fr) 2009-08-13

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PCT/TR2008/000118 WO2009099399A1 (fr) 2008-02-06 2008-10-13 Silencieux d’échappement à création de vide pour moteurs à combustion interne

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JP (1) JP2011513613A (fr)
TR (1) TR200800740A2 (fr)
WO (1) WO2009099399A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110016737A1 (en) * 2008-01-25 2011-01-27 Christophe Gaillard Silencer for drying appliance and quiet hairdryer
WO2012149462A2 (fr) * 2011-04-29 2012-11-01 Firestar Engineering, Llc Échappement à aspiration variable
CN102926853A (zh) * 2012-07-26 2013-02-13 台湾华特力绿色科技有限公司 汽车引擎气流调节装置
US8539770B2 (en) 2008-10-17 2013-09-24 Loughborough University Exhaust arrangement for an internal combustion engine
US8839607B2 (en) 2012-12-13 2014-09-23 Ford Global Technologies, Llc Ejector in conjunction with post-catalyst exhaust throttle for vacuum generation
DE102014015762A1 (de) * 2014-10-27 2016-04-28 Mtu Friedrichshafen Gmbh Emissionssignatur-Modifikationsvorrichtung
GB2535526A (en) * 2015-02-23 2016-08-24 Hasan Muwaiza Abdulrahman Exhaust system
US9429110B2 (en) 2013-01-16 2016-08-30 Ford Global Technologies, Llc Method and system for vacuum control
US9556771B2 (en) 2013-01-16 2017-01-31 Ford Global Technologies, Llc Method and system for catalyst temperature control
DE102016206079A1 (de) * 2016-04-12 2017-10-12 Volkswagen Aktiengesellschaft Schalldämpfer zum Einsetzen in eine Fluidleitung einer Kraftmaschine und ein Verfahren zum Dämpfen von Schall
CN109882266A (zh) * 2019-02-26 2019-06-14 江苏徐工工程机械研究院有限公司 一种工程机械排气声品质提升的装置
US10519984B2 (en) 2014-06-06 2019-12-31 Dayco Ip Holdings, Llc Noise attenuation in a Venturi device and/or check valves
US10704438B2 (en) 2015-11-17 2020-07-07 Carrier Corporation Temperature control of exhaust gas of a transportation refrigeration unit
CN112160817A (zh) * 2020-10-09 2021-01-01 黄山天之都环保科技有限公司 地下工程移动电站尾气治理红外抑制系统
US11268427B2 (en) 2020-01-08 2022-03-08 Cnh Industrial America Llc Aspiration systems for work vehicles including exhaust tubes having airflow area modifiers
EP3850197A4 (fr) * 2018-09-13 2022-04-06 The University of Adelaide Ensemble pour gaz d'échappement
WO2022143372A1 (fr) * 2020-12-30 2022-07-07 曼胡默尔滤清器（上海）有限公司 Silencieux à large bande pour véhicule à pile à combustible
WO2024020605A1 (fr) 2022-07-21 2024-01-25 Green Current (Pty) Ltd Système de génération d'énergie

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EP0358357A1 (fr) * 1988-08-25 1990-03-14 Webster G. Billington Système de commande d'échappement pour un moteur à combustion interne
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FR397351A (fr) * 1908-12-12 1909-05-06 Charles Suteau Silencieux pour moteur à explosions
GB271319A (en) * 1926-12-18 1927-05-26 Charles Henry Lines Improvements in silencers for use with internal combustion engines
EP0174883A2 (fr) * 1984-08-01 1986-03-19 Ecia - Equipements Et Composants Pour L'industrie Automobile Moteur électrique, notamment pour groupe moto-ventilateur
FR2577276A1 (fr) * 1985-02-11 1986-08-14 Lepretre Joel Dispositif d'echappement des gaz brules d'un moteur thermique
EP0358357A1 (fr) * 1988-08-25 1990-03-14 Webster G. Billington Système de commande d'échappement pour un moteur à combustion interne
JPH0240915U (fr) * 1988-09-12 1990-03-20
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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110016737A1 (en) * 2008-01-25 2011-01-27 Christophe Gaillard Silencer for drying appliance and quiet hairdryer
US8601713B2 (en) * 2008-01-25 2013-12-10 Velecta Paramount S.A. Silencer for drying appliance and quiet hairdryer
US8539770B2 (en) 2008-10-17 2013-09-24 Loughborough University Exhaust arrangement for an internal combustion engine
WO2012149462A2 (fr) * 2011-04-29 2012-11-01 Firestar Engineering, Llc Échappement à aspiration variable
WO2012149462A3 (fr) * 2011-04-29 2013-01-17 Firestar Engineering, Llc Échappement à aspiration variable
CN103635669A (zh) * 2011-04-29 2014-03-12 火星工程有限公司 可变抽吸排气
US9206729B2 (en) 2011-04-29 2015-12-08 Gregory S. Mungas Throttleable exhaust venturi
CN102926853A (zh) * 2012-07-26 2013-02-13 台湾华特力绿色科技有限公司 汽车引擎气流调节装置
US8839607B2 (en) 2012-12-13 2014-09-23 Ford Global Technologies, Llc Ejector in conjunction with post-catalyst exhaust throttle for vacuum generation
US9719391B2 (en) 2013-01-16 2017-08-01 Ford Global Technologies, Llc Method and system for vacuum control
US9429110B2 (en) 2013-01-16 2016-08-30 Ford Global Technologies, Llc Method and system for vacuum control
US10711672B2 (en) 2013-01-16 2020-07-14 Ford Global Technologies, Llc Method and system for catalyst temperature control
US9556771B2 (en) 2013-01-16 2017-01-31 Ford Global Technologies, Llc Method and system for catalyst temperature control
US10519984B2 (en) 2014-06-06 2019-12-31 Dayco Ip Holdings, Llc Noise attenuation in a Venturi device and/or check valves
DE102014015762A1 (de) * 2014-10-27 2016-04-28 Mtu Friedrichshafen Gmbh Emissionssignatur-Modifikationsvorrichtung
DE102014015762B4 (de) * 2014-10-27 2016-10-13 Mtu Friedrichshafen Gmbh Emissionssignatur-Modifikationsvorrichtung
US10174652B2 (en) 2014-10-27 2019-01-08 Mtu Friedrichshafen Gmbh Emission signature modification device
CN107148511A (zh) * 2014-10-27 2017-09-08 Mtu 腓特烈港有限责任公司 排放特征改良装置
GB2535526A (en) * 2015-02-23 2016-08-24 Hasan Muwaiza Abdulrahman Exhaust system
US10704438B2 (en) 2015-11-17 2020-07-07 Carrier Corporation Temperature control of exhaust gas of a transportation refrigeration unit
DE102016206079A1 (de) * 2016-04-12 2017-10-12 Volkswagen Aktiengesellschaft Schalldämpfer zum Einsetzen in eine Fluidleitung einer Kraftmaschine und ein Verfahren zum Dämpfen von Schall
EP3850197A4 (fr) * 2018-09-13 2022-04-06 The University of Adelaide Ensemble pour gaz d'échappement
CN109882266A (zh) * 2019-02-26 2019-06-14 江苏徐工工程机械研究院有限公司 一种工程机械排气声品质提升的装置
CN109882266B (zh) * 2019-02-26 2020-05-08 江苏徐工工程机械研究院有限公司 一种工程机械排气声品质提升的装置
US11268427B2 (en) 2020-01-08 2022-03-08 Cnh Industrial America Llc Aspiration systems for work vehicles including exhaust tubes having airflow area modifiers
CN112160817A (zh) * 2020-10-09 2021-01-01 黄山天之都环保科技有限公司 地下工程移动电站尾气治理红外抑制系统
WO2022143372A1 (fr) * 2020-12-30 2022-07-07 曼胡默尔滤清器（上海）有限公司 Silencieux à large bande pour véhicule à pile à combustible
WO2024020605A1 (fr) 2022-07-21 2024-01-25 Green Current (Pty) Ltd Système de génération d'énergie

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