WO2015084281A1 - Tuyau melangeur - Google Patents

Tuyau melangeur Download PDF

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Publication number
WO2015084281A1
WO2015084281A1 PCT/TR2014/000482 TR2014000482W WO2015084281A1 WO 2015084281 A1 WO2015084281 A1 WO 2015084281A1 TR 2014000482 W TR2014000482 W TR 2014000482W WO 2015084281 A1 WO2015084281 A1 WO 2015084281A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
exhaust gas
mixer
guiding fin
exhaust
Prior art date
Application number
PCT/TR2014/000482
Other languages
English (en)
Inventor
Hakan ALKAN
İsmail Hakkı SAVCI
Ender AKGUL
Ahmet Sinan KARTAL
Original Assignee
Ford Otomotiv Sanayi Anonim Sirketi
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
Priority claimed from TR2013/14037A external-priority patent/TR201314037A2/tr
Application filed by Ford Otomotiv Sanayi Anonim Sirketi filed Critical Ford Otomotiv Sanayi Anonim Sirketi
Priority to DE112014005083.0T priority Critical patent/DE112014005083T5/de
Publication of WO2015084281A1 publication Critical patent/WO2015084281A1/fr

Links

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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a mixer pipe which is connected to the exhaust pipe and enables the particles sprayed into the pipe to be mixed homogeneously with the exhaust gas.
  • Some waste gases are produced as a result of the combustion in the internal combustion engines. Gases which are harmful for environment and human health are also present inside the waste gases produced as a result of combustion. It is forbidden and dangerous to directly release the gases harmful for environment and for human health from the vehicle exhaust. The harmful gases generated as a result of combustion are tried to be eliminated by being subjected to several stages such as filtering, re-combustion, enhancing combustion process. Therefore it is prevented that the harmful gases are directly released from the exhaust system and the emission values are decreased.
  • the exhaust gas going out of the engine is not carried outside with straight pipes in the exhaust systems.
  • the components and the pipes used in the exhaust system are placed in suitable placed according to the vehicle body design.
  • the design of exhaust system pipes is made according to the locations of the pipes and the equipment such as injectors mounted to the pipes, the design of the body and the other components. For this reason, there are turns in the pipes, decreases and increases in diameters present in the exhaust systems..
  • the changes in the exhaust system pipes directly affect the gas flow and the homogeneity of the exhaust gas.
  • European Patent Document no EP1982756 (Al), an application known in the state of the art, discloses an exhaust system of an internal combustion engine.
  • the exhaust system comprises an exhaust pipe, an exhaust manifold, an oxidizing catalyst, catalytic system and an injection device.
  • the injection device injects reducing additive to the exhaust pipe.
  • the device has a tubular body, and it has a plurality of fins in its structure.
  • the said patent document does not disclose a pipe that can be included into the exhaust system and a mechanical structure for making the exhaust gas flow homogeneous with the said pipe.
  • Korean Patent Document no KR101230417 (Bl) an application known in the state of the art, discloses an apparatus which prevents vortex and reduces the nitrogen oxide in the exhaust gas.
  • the apparatus comprises an exhaust pipe, an injector, an EGR line, an inflow guide vane, and a discharge guide vane.
  • the catalyst unit is mounted on the middle part of the exhaust pipe.
  • the injector injects the reducing additive to the catalyst unit.
  • EGR line recirculates the exhaust gas from the catalyst unit to the front end of the injector.
  • the said patent document does not disclose a pipe which can be included into the exhaust system and which has the structure for making the exhaust gas flow homogeneous. Furthermore, the said patent document does not disclose a pipe structure which sprays air mixed into the exhaust system.
  • an angular pipe which can be included into the exhaust system and making the gas flow homogeneous with the mechanical equipment present inside the pipe structure are not disclosed.
  • an air flow mixed to the system with a pipe included into the exhaust system is not provided.
  • the objective of the present invention is to provide a mixing pipe which is mounted to a place inside the exhaust system preferably before the injector and which is for reducing the gas emission.
  • Another objective of the present invention is to provide a mixing pipe which reduced the gas emission value by making the exhaust gas flow homogeneous.
  • Yet another objective of the present invention is to provide a mixing pipe which has angular turn in one part of the exhaust pipe.
  • a further objective of the present invention is to provide a mixing pipe which sprays the mixed air or liquid to the gas inside the exhaust pipe.
  • Another objective of the present invention is to provide a mixing pipe which prevents the exhaust gas from accumulating inside the pipe and the exhaust gas from hitting to the injector directly.
  • a further objective of the present invention is to provide a mixing pipe which enables the particles -injected to the exhaust system to be mixed well with the exhaust gas.
  • a mixer pipe which is defined in the first system and the other claims dependent to this claim developed to fulfill the objective of the present invention is mounted on the exhaust pipe before the injector.
  • the exhaust gas passes through the mixer pipe.
  • the inlet and the outlet of the mixer pipe are not located on the same axis, there is an angular turn between the inlet and the outlet.
  • There is a guiding piece preferably in the plaqe where the angular turn is present, up from the inlet.
  • the guiding piece remains angular inside the inlet pipe, therefore the exhaust gas is guided where it is desired.
  • the mixer and the injector are located right above the place where the guiding piece is provided.
  • the air is mixed and sprayed into the pipe.
  • the mixed air is mixed with the homogenized exhaust gas inside the pipe, and thus a qualified catalyst and combustion is realized.
  • Figure 1 is the perspective view of the mixer pipe.
  • Figure 2 is the perspective view showing the exhaust gas passing through the mixer pipe.
  • a mixer pipe (1) which is mounted to the exhaust pipe and enables the exhaust gas to be mixed with the air homogeneously comprises
  • -at least one guiding fin (5) which is located after the inlet (21), guides the exhaust gas and preferably divides into two parts,
  • the inventive mixing pipe (1) is connected to the exhaust pipe before the injector.
  • the gas generated as a result of combustion in the engine is drawn with exhaust manifold and it is discharged out of the vehicle with the exhaust system. Emission values are reduced before discharging the gas generated as a result of combustion.
  • the mixing pipe (1) is mounted inside the exhaust system in order to reduce the emission of exhaust gas.
  • the exhaust gas enters into the pipe (2) through the inlet (21) and exits through the outlet (22).
  • the inlet (21) and the outlet (22) are not located on the same axis.
  • a bending is provided between the inlet (21) and the outlet (22) on the pipe (2) by forming an angle. By means of the bending on the pipe (2), packing is performed easily and advantageously.
  • the angle is provided on a preferred point on the pipe (2) between the inlet (21) and the outlet (22).
  • the angle enables the pipe (2) to be bent in a preferred ratio and enables the inlet (21) and the outlet (22) to be on different axis.
  • the flow rate and the speed of the gas can be controlled by changing the bending angle on the pipe (2).
  • the bending angle on the pipe (2) can be in different forms and angles. In the preferred embodiment of the invention, the bending angle of the pipe (2) is between 30-90 °.
  • the inventive mixer pipe (1) there is at least one mounting piece (3) preferably on the place where the pipe (2) bending is present that is on the place where the pipe (2) angle is formed.
  • the mounting piece (3) is on the pipe (2) preferably where the angle is present.
  • the mounting piece (3) enables the mixer (4) to be mounted on the pipe (2)
  • the exhaust gas flow is from the inlet (21) towards the outlet (22).
  • the guiding fin (5) is preferably smaller than the diameter of the pipe (2) and it is open towards the flow direction of the exhaust gas. ( Figure 1) he guiding fin (5) narrows the diameter of the pipe (2) through which the exhaust gas passes, and guides the exhaust gas since it remain open towards the flow direction of the gas.
  • the holes (6) are provided on parts of the guiding fin (5) where it is preferred, and the surface apart from the holes (6) has a closed structure.
  • the exhaust gas comes to the guiding fin (5), some part of the exhaust gas passes the guiding fin (5), and the other part of the exhaust gas hits to the guiding fin (5), and moves according to the angle of repose of the fin (5) inside the pipe (2). Therefore, the exhaust gas is divided into two with the guiding fin (5) and the exhaust gas passing through the fin (5) is mixed.
  • the exhaust gas passing through the holes (6) on the fin (5) is provided with a movement preferably in shape of a spiral and the exhaust gas is mixed with this movement.
  • the guiding fin (5) is mounted and fixed inside the pipe (2). In this embodiment, when the exhaust gas hits the guiding fin (5), it is divided into two relative to the fixing angle of the fin (5).
  • the guiding fin (5) is movable.
  • the guiding fin (5) moves according to the axis of the pipe (2).
  • the movement of the guiding fin (5), that is opening as the exhaust gas hits, is provided with the pressure of the exhaust gas.
  • the guiding fin opens more when there is dense exhaust gas flow, while the fin (5) starts closing as the exhaust gas passage decreases.
  • the guiding fin (5) opens in stages. The guiding fin can change only a few levels according to the pressure values, and it opens by moving between these levels.
  • the guiding fin (5) guides the gas flow and divides the gas flow into two.
  • the gas divided by means of the guiding fin (5) is mixed and the exhaust gas is enabled to be homogeneous.
  • the guiding fin (5) is shape of a semi-circle and there are holes (6) provided on the guiding fin (5).
  • the guiding fin (5) can be in different shapes and sizes.
  • the mixer (4) is mounted on the mounting piece (3).
  • the mixer (4) preferably comprises at least one air intake and at least one injector (7).
  • the injector (7) is preferably fixed such that it will face inside the pipe (2), and it enables spraying. Air enters through the air intake inside the mixer (4).
  • the air inside the mixer (4) is mixed well, and sprayed inside the pipe (2) with the injector (7).
  • the air sprayed from the injector (7) is combined with the exhaust gas which is mixed, and it becomes an ideal and homogeneous mixture. Therefore, the exhaust gas moving inside the pipe (2) is mixed with air.
  • the inventive mixer pipe (1) the exhaust gas and the air are mixed separately, and then they are combined. Therefore, the exhaust gas and air mixture has the ideal value.
  • the guiding fin (5) is on the pipe (2) where the angle is formed and before the injector (7). Therefore, the exhaust gas first hits to the guiding fin (5) before hitting to injector (7).
  • the guiding fin (5) also protects the injector (7) as well as it mixes the exhaust gas by diving into two. By means of the guiding fin (5), the particles in the exhaust gas are prevented from directly hitting the injector (7) and the operation time of the injector (7) elongates. If the guiding fins (5) are movable, they remain in more vertical and lower position in low flowrate. By means of the holes (6) on the guiding fins (5), the distribution of exhaust gas is improves, and the injected liquid is enabled to be degraded.
  • the exhaust gas is guided according to the spraying angle of the injector (7). By this means the sprayed particles are prevented from hitting the exhaust walls.
  • liquid is also sprayed through the injector (7) together with the air.
  • reducing exhaust gas emission is performed inside the mixer pipe (1).
  • exhaust gas moves inside the pipe (2).
  • Liquid is injected through the injector (7) at the time when the exhaust gas is present therein.
  • the liquid injected through the injected (7) is degraded by means of the exhaust gas passing through the holes (6).
  • the guiding fin (5) enables the exhaust gas to be guided while passing through the pipe (2), and prevents the injected liquids from hitting to the exhaust wall.
  • the inventive mixer pipe (1) is mounted inside the exhaust system.
  • the exhaust gas enters through the inlet (21) of the pipe (2).
  • the pipe (2) is angular (bent) preferably between 30-90 0 between the inlet (21) and the outlet (22).
  • the mounting piece (3) is provided on the angular part of the pipe (2), and the mixer (4) is provided on the mounting piece (3).
  • the air intake and injector (7) are provided on the mixer (4).
  • the exhaust gas is divided into two with the guiding fin (5), and it is guided in a preferred way.
  • the guiding fin (5) also mixes the exhaust gas, as well as it protects the injector (7). It mixes the air inside the mixer (4) well and sprays inside the pipe (2) with the injector (7). The particles are prevented from sticking to the pipe (2) and exhaust wall in the place where the injector (7) carries out spraying. Therefore the exhaust gas is homogeneously mixed with air, and an ideal mixture is obtained.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

La présente invention concerne un tuyau mélangeur (1) qui est monté à un tuyau d'échappement et permet le mélange homogène de gaz d'échappement avec de l'air, et caractérisé en ce qu'il comporte: au moins un tuyau (2) que traverse le gaz d'échappement, qui comprend un orifice d'entrée (21) par lequel pénètre le gaz d'échappement et un orifice de sortie (22) par lequel sort le gaz d'échappement; au moins une ailette de guidage (5) qui est située après l'orifice d'entrée (21), guide le gaz d'échappement et de préférence se divise en deux parties; au moins un mélangeur (4) qui est prévu depuis l'ailette de guidage (5) et pulvérise l'air dans le tuyau (2) par un mélange.
PCT/TR2014/000482 2013-12-02 2014-12-02 Tuyau melangeur WO2015084281A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112014005083.0T DE112014005083T5 (de) 2013-12-02 2014-12-02 Mischerrohr

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
TR2013/14037 2013-12-02
TR2013/14037A TR201314037A2 (tr) 2013-12-02 2013-12-02 Bir enjektör.
TR201414484 2014-12-02
TR2014/14484 2014-12-02

Publications (1)

Publication Number Publication Date
WO2015084281A1 true WO2015084281A1 (fr) 2015-06-11

Family

ID=52472566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2014/000482 WO2015084281A1 (fr) 2013-12-02 2014-12-02 Tuyau melangeur

Country Status (2)

Country Link
DE (1) DE112014005083T5 (fr)
WO (1) WO2015084281A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018103368A1 (de) * 2018-02-15 2019-08-22 Man Truck & Bus Ag Vorrichtung zum Mischen von Abgas und einem Additiv

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679724A (en) * 1950-01-16 1954-06-01 Edmund S Pomykala Exhaust gas purifier
FR1211081A (fr) * 1958-10-02 1960-03-14 Dispositif pour l'assainissement des gaz d'échappement de moteurs
US3237399A (en) * 1963-11-04 1966-03-01 Universal Oil Prod Co Means for regulating aspirated secondary air for exhaust gas conversion
US5890361A (en) * 1997-01-29 1999-04-06 Corning Incorporated Exhaust gas fluidics apparatus
EP1982756A1 (fr) 2007-04-19 2008-10-22 Magneti Marelli Sistemi di Scarico S.p.a. Système d'échappement d'un moteur à combustion interne
EP2295755A2 (fr) * 2009-09-15 2011-03-16 Kabushiki Kaisha Toyota Jidoshokki Système de traitement de gaz d'échappement
KR101230417B1 (ko) 2011-08-23 2013-02-06 한양대학교 에리카산학협력단 배기가스의 질소산화물 저감장치

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679724A (en) * 1950-01-16 1954-06-01 Edmund S Pomykala Exhaust gas purifier
FR1211081A (fr) * 1958-10-02 1960-03-14 Dispositif pour l'assainissement des gaz d'échappement de moteurs
US3237399A (en) * 1963-11-04 1966-03-01 Universal Oil Prod Co Means for regulating aspirated secondary air for exhaust gas conversion
US5890361A (en) * 1997-01-29 1999-04-06 Corning Incorporated Exhaust gas fluidics apparatus
EP1982756A1 (fr) 2007-04-19 2008-10-22 Magneti Marelli Sistemi di Scarico S.p.a. Système d'échappement d'un moteur à combustion interne
EP2295755A2 (fr) * 2009-09-15 2011-03-16 Kabushiki Kaisha Toyota Jidoshokki Système de traitement de gaz d'échappement
KR101230417B1 (ko) 2011-08-23 2013-02-06 한양대학교 에리카산학협력단 배기가스의 질소산화물 저감장치

Also Published As

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