US20110036082A1 - Exhaust element comprising a static means for mixing an additive into the exhaust gases - Google Patents

Exhaust element comprising a static means for mixing an additive into the exhaust gases Download PDF

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Publication number
US20110036082A1
US20110036082A1 US12/989,769 US98976909A US2011036082A1 US 20110036082 A1 US20110036082 A1 US 20110036082A1 US 98976909 A US98976909 A US 98976909A US 2011036082 A1 US2011036082 A1 US 2011036082A1
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United States
Prior art keywords
exhaust
exhaust element
direction
helicoids
particular
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Abandoned
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US12/989,769
Inventor
Cedric Collinot
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Faurecia Systemes d'Echappement SAS
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Faurecia Systemes d'Echappement SAS
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Priority to FR0852893A priority Critical patent/FR2930594B1/en
Priority to FR0852893 priority
Application filed by Faurecia Systemes d'Echappement SAS filed Critical Faurecia Systemes d'Echappement SAS
Priority to PCT/FR2009/050755 priority patent/WO2009138668A2/en
Assigned to FAURECIA SYSTEMES D'ECHAPPEMENT reassignment FAURECIA SYSTEMES D'ECHAPPEMENT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLLINOT, CEDRIC
Publication of US20110036082A1 publication Critical patent/US20110036082A1/en
Application status is Abandoned legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/28Construction of catalytic reactors
    • F01N3/2892Exhaust flow directors or the like, e.g. upstream of catalytic device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/06Mixers in which the components are pressed together through slits, orifices, or screens; Static mixers; Mixers of the fractal type
    • B01F5/0602Static mixers, i.e. mixers in which the mixing is effected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F5/0609Mixing tubes, e.g. the material being submitted to a substantially radial movement or to a movement partially in reverse direction
    • B01F5/061Straight mixing tubes, e.g. with smooth walls, having baffles or obstructions therein without substantial pressure drop; Baffles therefor
    • B01F5/0614Straight mixing tubes, e.g. with smooth walls, having baffles or obstructions therein without substantial pressure drop; Baffles therefor the baffles being helical elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/06Mixers in which the components are pressed together through slits, orifices, or screens; Static mixers; Mixers of the fractal type
    • B01F5/0602Static mixers, i.e. mixers in which the mixing is effected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F5/0609Mixing tubes, e.g. the material being submitted to a substantially radial movement or to a movement partially in reverse direction
    • B01F5/061Straight mixing tubes, e.g. with smooth walls, having baffles or obstructions therein without substantial pressure drop; Baffles therefor
    • B01F2005/0635Straight mixing tubes, e.g. with smooth walls, having baffles or obstructions therein without substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F2005/0639Support members, e.g. tubular collars, with projecting baffles fitted inside the mixing tube or adjacent to the inner wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00Combination 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
    • F01N2240/20Combination 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection
    • Y02A50/20Air quality improvement or preservation
    • Y02A50/23Emission reduction or control
    • Y02A50/232Catalytic converters
    • Y02A50/2322Catalytic converters for exhaust after-treatment of internal combustion engines in vehicles

Abstract

The invention relates to an exhaust element including a line for exhausting the gases of a motor vehicle with a combustion engine and through the inside of which flows a fluid with the exhaust gases and of an additive to these gases. The exhaust element has, mounted inside it, a static device for mixing this additive with these exhaust gases. The static device for mixing the additive with the exhaust gases comprises at least one helicoid having an axis extending in a direction that makes a set angle with the direction of flow of the fluid through this exhaust element.

Description

    RELATED U.S. APPLICATIONS
  • Not applicable.
  • STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
  • Not applicable.
  • REFERENCE TO MICROFICHE APPENDIX
  • Not applicable.
  • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • This invention relates to an exhaust element included in a line for exhausting the gases from a motor vehicle with a combustion engine.
  • This invention is related to the field of the automobile industry and, in particular, that of manufacturing equipment designed to ensure the exhausting of gases obtained from the burning of a fuel inside a combustion engine a motor vehicle includes.
  • Such equipment adopts the form of an exhaust line that, according to the direction of the flow of the exhaust gases in this exhaust line, on the one hand, is connected to such a combustion engine, on the other hand, comprises a succession of exhaust elements and, on yet another hand, opens onto the atmosphere.
  • In particular, among these exhaust elements, said exhaust line comprises at least one device for the physical and/or chemical treatment of exhaust gases.
  • Such a device may consist of a catalytic converter that can assume the form of a catalytic converter (in particular of the SCR type) for reducing nitrous oxides (NOx) and that comprises a means for treating the gases at least designed to ensure such a reduction. Such a catalytic converter finds its application in particular when it is necessary to clean up exhaust gases obtained from the burning of a fuel of the diesel type.
  • 2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98.
  • It was found that the reduction of these exhaust gases inside such a catalytic converter is considerably improved when, before their introduction into this catalytic converter, these exhaust gases are mixed with an additive containing urea. In fact, urea, when it is introduced into hot exhaust gases (in particular after vaporization of a water solution of urea), undergoes a chemical transformation transforming it into ammonia (NH3) constituting a powerful reducer of nitrous oxides. Thus, inside the catalytic converter and in the presence of this ammonia, exhaust gases are reduced so that, at the exit of this catalytic converter, essentially water, hydrogen (H2) and nitrogen (N2) are released.
  • In this connection, it should be noted that the more homogeneous the mixing of the additive with exhaust gases is, the more effective is the reduction of these nitrous oxides.
  • In order to improve the homogeneity of this mixture, it is common to resort to a static mixer placed inside an exhaust element (usually an exhaust conduit) and upstream of the means for treating the gases.
  • As described in WO9300990, such a mixer adopts the form of a plurality of deflection elements that are, on the one hand, arranged according to a plurality of rows perpendicular to the axis of symmetry of the exhaust element and, on the other hand, oriented in the same direction inside the same row and in the opposite direction in two adjoining rows.
  • Also known, from EP-1.514.591, is an exhaust element comprising, inside, a static mixer comprising a plurality of zigzags adopting the form of bent strips of sheet metal extending from the periphery of this element toward its center. These zigzags define propeller blades extending through the exhaust element.
  • These devices permit, of course, to improve the homogeneity of the mixture downstream of the mixer but have however the disadvantage of creating a considerable back pressure upstream of this mixer, prejudicial to the flow of the gases in the exhaust line as well as to their treatment and to their evacuation.
  • SUMMARY OF THE INVENTION
  • This invention claims to be able to remedy the disadvantages of the state-of-the-art devices.
  • To this end, the invention relates to an exhaust element included in a line for exhausting the gases from a motor vehicle with a combustion engine and through the inside of which flows a fluid consisting of the exhaust gases as well as of an additive to these gases, this exhaust element comprising, mounted inside it, a static means for mixing this additive with these exhaust gases. This exhaust element is characterized in that the static means for mixing the additive with the exhaust gases comprises at least one helicoid having an axis extending in a direction that forms a set angle with the direction of flow of the fluid through this exhaust element.
  • An additional feature relates to the fact that the direction of extension of the axis of a helicoid forms, with the direction of flow of the fluid through the exhaust element, an angle between 0 and 30°.
  • According to another feature, the mixer comprises a plurality of helicoids having each an axis, on the one hand, extending in a direction that makes a set angle, in particular between 0 and 30°, with the direction of extension of the axis of another helicoid and, on the other hand, extending in a direction that makes a set angle, in particular between 0 and 30°, with the direction of flow of the fluid through this exhaust element.
  • According to an additional feature, the two helicoids that are immediately juxtaposed have an identical or, preferably, opposite direction of rotation.
  • An additional feature consists in that the mixer comprises a plurality of helicoids and that these helicoids are grouped together inside at least one set comprising at least two helicoids the direction of rotation of which is preferably identical.
  • According to another feature, the mixer comprises at least one module comprising, on the one hand, a plate oriented parallel to the direction of flow of the fluid through the exhaust element and, on the other hand, at least one helicoid or a set of at least two helicoids extending in the extension downstream of this plate.
  • In fact, this mixer comprises a plurality of modules, on the one hand, comprising each a plate as well as a set of at least two helicoids and, on the other hand, assembled, two by two, in particular perpendicularly, through assembling means comprised by at least one plate of at least one such module.
  • Finally, such a module consists of a single part, in particular a metallic part, preferably made by cutting out, boring, in particular completed by folding.
  • In fact, this exhaust element consists either of an exhaust conduit comprising, inside, the means for mixing an additive with the exhaust gases, or of a device for the physical and/or chemical treatment of exhaust gases comprising, inside, the means for mixing an additive with the exhaust gases as well as, downstream of this mixer, a means for the physical and/or chemical treatment of this mixture.
  • The invention also relates to an exhaust line comprising such an exhaust element.
  • The advantages of this invention consist in that the exhaust element comprises a static mixer for mixing the additive with the exhaust gases, such a mixer consisting of at least one helicoid placed inside this exhaust element. Such a helicoid permits, advantageously, to confer to the fluid a turbulent movement improving the homogenization of the mixture. Another advantage of such a helicoid consists in that the fluid, downstream of this helicoid, has a flow such that the back pressure generated by the mixture additive/exhaust gases is substantially lower than that generated by the state-of-the-art devices.
  • Additionally, such a mixer can also include a plurality of helicoids that are in fact cleverly arranged inside the exhaust element so as to adapt to the geometry and/or to the dimensions of the exhaust element which advantageously permits to optimize the flow of the fluid downstream of this mixture means.
  • Additionally, it is easily possible to adapt the number of helicoids, their positioning with respect to each other, their characteristics (direction of rotation, length, pitch, diameter, axis orientation), which advantageously permits to obtain good results in terms of homogeneity of the mixing and of weakness of the back pressure (and even in terms of compromise between this back pressure and head loss) downstream of the mixer.
  • In this connection, it should be noted that good results are obtained when this mixer comprises at least one pair of helicoids, and even preferably two pairs of helicoids.
  • An additional feature consists in that said mixer is placed inside an exhaust element consisting of an exhaust conduit or of a gas treatment device, in particular, a catalytic converter. Such an embodiment advantageously permits to position said mixer in an optimized manner within the exhaust line, with respect to the means for introducing the additive and with respect to the means for treating the exhaust gases.
  • Finally, this mixer can be made from at least one metal sheet, in particular by cutting out, boring, in particular completed by folding. This advantageously permits to provide a static mixer particularly effective for particularly reduced manufacturing costs.
  • Other aims and advantages of this invention will appear during the following description, referring to embodiments that are given only by way of an example, and non-restrictively.
  • The understanding of said description will be facilitated by referring to the drawings attached hereto.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic view of an exhaust line comprising an exhaust element according to the invention.
  • FIG. 2 is a schematic, partially cross-sectional, longitudinal view of an exhaust element consisting of an exhaust conduit and receiving, inside, a means for mixing (mixer) an additive with exhaust gases.
  • FIG. 3 is a schematic detailed view of such a mixer.
  • FIGS. 4 a and 4 b are schematic detailed views representing, respectively, each of the two modules constituting such a mixer.
  • FIGS. 5 a through 5 d are schematic detailed views corresponding to a first embodiment of the installation of such a mixer inside an exhaust element shown in FIG. 2.
  • FIGS. 6 a through 6 c are schematic detailed views corresponding to a second embodiment of the installation of such a mixer inside an exhaust element shown in FIG. 2.
  • DETAILED DESCRIPTION OF THE DRAWINGS
  • The invention is related to the field of the automobile industry and, in particular, that of manufacturing equipment designed to ensure the exhausting of gases obtained from the burning of a fuel inside a combustion engine 1 a motor vehicle includes.
  • Such equipment is in the form of an exhaust line 2, connected to this engine 1, comprising a plurality of exhaust elements (3; 4) following one another along this exhaust line 2.
  • In particular and as shown in FIG. 1, this exhaust line 2 can include at least one exhaust element 3 consisting of a device for ensuring the physical and/or chemical treatment of gases obtained from the burning of a fuel in the engine 1.
  • Such a treatment device 3 may consist of a particulate trap 31 (usually called FAP) placed downstream of the engine 1.
  • Such a treatment device 3 can also consist of a catalytic converter 32, also placed downstream of the engine 1. According to a first embodiment shown in FIG. 1 and corresponding to a standard configuration of an exhaust line 2, said catalytic converter 32 can be placed downstream of the abovementioned particulate trap 31. However, and according to another embodiment that is not shown, such a catalytic converter 32 can also be integrated into a more complex exhaust element 3 (usually called cata-FAP) incorporating such a catalytic converter 32 as well as a particulate trap 31 of the abovementioned type.
  • In fact, such a catalytic converter 32, in particular and at least partially, consists of a catalytic converter for the treatment of nitrous oxides (NOx) contained in the exhaust gases.
  • Such a catalytic converter 32 for treating nitrous oxides may consist of a catalytic converter for the trapping of these nitrous oxides (usually called NOx trap) or also of a catalytic converter for the catalytic reduction of these nitrous oxides, for example a three-way catalytic converter of the type TWC or also a catalytic converter of the type SCR (Selective Catalytic Reduction).
  • In the particular case of a catalytic converter 32 for reducing nitrous oxides, this catalytic converter 32 includes, inside, a means (in particular ceramic or analogous means) for the treatment of exhaust gases, said treatment means being designed to ensure the catalytic reduction of nitrous oxides contained in these gases.
  • In this connection, it should be noted that the catalytic reduction of nitrous oxides contained in exhaust gases is facilitated when these gases contain a reducing agent.
  • The presence in these gases of such a reducing agent can be ensured by introducing, inside the exhaust line 2 and upstream of the catalytic converter 32, such a reducing agent or the precursor of such a reducing agent which, inside the exhaust line 2 and upstream of the treatment means, is transformed into such a reducing agent.
  • To this end, the exhaust line 2 is complemented with a means 5 placed downstream of the particulate trap 31 and upstream of the catalytic converter 32, and designed to introduce (in particular by injection, more specifically after pulverization or vaporization) into this exhaust line 2 an additive that should be added to the exhaust gases for making a fluid to be treated by catalytic reduction in said catalytic converter 32.
  • This introduced additive consists of a reducing agent or of a precursor of such a reducing agent.
  • In fact, and according to a preferred embodiment, this additive is based on urea and may consist of a solution (in particular a water solution) having a small urea content, in particular known by the name of AdBlue (precursor of a reducing agent). This solution undergoes a chemical transformation (thermolysis, hydrolysis) inside the exhaust line 2 so as to be at least in the form of ammonia (NH3), constituting the reducing agent, mixed with the exhaust gases, inside the fluid to be treated.
  • It should also be noted that effectiveness of catalytic reduction of nitrous oxides contained in exhaust gases increases with the increase of homogeneity of the fluid to be treated by the catalyst 32.
  • In order to homogenize this fluid, the exhaust line 2 also includes a static means 6 for mixing the additive with the exhaust gases, this means 6, in the remaining part of the description and for convenience raisons, being referred to as mixer 6.
  • Such a mixer 6 is, in this case, designed for mixing exhaust gases with the additive consisting, as the case may be, of the reducing agent (in case of introduction of an additive consisting of such a reducing agent or after transformation into a reducing agent of a precursor—introduced in the line 2—of such a reducing agent) and/or of the precursor of such a reducing agent (in case of introduction of an additive consisting of such a reducing agent precursor).
  • In fact, and as shown in the attached Figures, said mixer 6 is placed, along the exhaust line 2 and inside the latter 2, between the means 5 for introducing the additive and the means for treating said fluid.
  • In this connection, and according to a first embodiment, not shown, such a mixer 6 can be placed inside an exhaust element 3 consisting of a device 3 for the physical and/or chemical treatment of exhaust gases the line 2 for exhausting the gases includes.
  • Said treatment device 3 includes, inside, the means 6 for mixing an additive with the exhaust gases as well as, downstream of this mixer 6, a means for the physical and/or chemical treatment of the mixed fluid.
  • Preferably, this device 3 for treating exhaust gases consists, in this case, of a catalytic converter 32 for catalytic reduction of nitrous oxides contained in exhaust gases or also of a more complex treatment device 3 of the abovementioned type (cata-FAP) comprising such a catalytic converter 32.
  • However, and according to a preferred embodiment of the invention, the means 6 for mixing an additive with the exhaust gases is mounted inside an exhaust element 4 consisting of an exhaust conduit 41.
  • As shown in the attached Figures, such an exhaust element 4 preferably consists of an exhaust conduit 41 for connecting a particulate trap 31 to a catalytic converter 32.
  • In fact, and as shown in FIGS. 5 a through 5 d and 6 a through 6 c, such a conduit 41 preferably consists of two portions (411; 412) of conduit 41, at least one 411 of which receives, inside, said mixer 6. The latter 6 is, in this case, introduced into this portion 411 of conduit 41, through its open end, and before connecting (in particular complemented with an integral connection, for example by welding) this portion 411 of conduit 41 to the other portion 412 of this conduit 41.
  • Irrespective of the nature (treatment device 3 or conduit 41) and/or the geometry of such an exhaust element (3, 4), the latter also includes, inside, a means 7 for receiving the mixer 6 inside this exhaust element (3, 4).
  • In fact, and as shown in FIGS. 5 a through 5 d and 6 a through 6 c, such a receiving means 7 preferably consists of a particular structure of the exhaust element (3, 4), in particular made by deformation of this exhaust element (3, 4), in particular of an open end a portion 411 of a conduit 41 constituting such an exhaust element 4 includes.
  • According to the invention, the means 6 for mixing the additive with the exhaust gases consists of at least one helicoid 61.
  • Such a helicoid 61 is at least characterized by a pitch, by a length, by a diameter, by a thickness, by a width, by an axis along which it extends and by a direction of rotation.
  • In this connection, it should be noted that the width of such a helicoid 61 can be constant, in the direction D of flow of the fluid through the exhaust element (3, 4). However, good results have been obtained for a helicoid 61 for which this width is increasing or, preferably, decreasing, in the direction D of flow of the fluid through the exhaust element (3, 4).
  • In fact, and according to another feature of such a helicoid 61, the latter has a width adapted to the structure of the exhaust element (3, 4) receiving at least one such helicoid 61. Such an embodiment advantageously permits to adjust the width of at least one such helicoid 61 to such a structure (in particular to the section of this exhaust element (3, 4), in particular in order to occupy the entire internal volume of the latter (3, 4).
  • Also, and according to another feature, such a helicoid 61 has an axis extending in a direction forming a set angle α with the direction D of flow of the fluid through this exhaust element (3, 4).
  • In this connection, it should be noted that the direction of extension of the axis of such a helicoid 61 forms with said direction D of flow of the fluid through the exhaust element (3, 4) an angle α between 0 and 30°.
  • According to a particular embodiment of the invention, not shown, said mixer 6 may consist of a single helicoid 61 placed inside an exhaust conduit 41 and the axis of which is at least parallel, in particular coinciding, with the axis of such a conduit 41.
  • However, and according to a preferred embodiment of the invention, this mixer 6 includes, in fact, a plurality of helicoids 61.
  • Such an embodiment advantageously permits to adapt the mixer 6 to the section of the exhaust element (3, 4) that it equips and/or to improve the quality of the homogenization of the fluid at the exit of the mixer 6.
  • By way of example, such a mixer 6 may include:
      • two helicoids 61 for an exhaust element (3, 4) having a substantially rectangular cross-section;
      • three helicoids 61 for an exhaust element (3, 4) having a substantially triangular cross-section;
      • four helicoids 61 for an exhaust element (3, 4) having a substantially square (FIG. 6 c) or round (FIG. 5 d) cross-section.
  • Another feature of the invention consists in that these helicoids 61 each have an axis, on the one hand, extending in a direction forming a set angle α′ with the direction of extension of the axis of the other helicoid or helicoids 61 of the mixer 6 and, on the other hand, extending in a direction forming a set angle α with the direction D of flow of the fluid through this exhaust element (3, 4).
  • In this connection, it should be noted that the direction of extension of the axis of a helicoid 61 forms, in fact, with the direction of extension of the axis of another helicoid or helicoids 61, an angle α′ between 0 and 30°.
  • In a similar case, and as mentioned above, the direction of extension of the axis of such a helicoid 61 can also form with the direction D of flow of the fluid through the exhaust element (3, 4) an angle α between 0 and 30°.
  • A particular embodiment (shown in the attached Figures) consists in that the angles α and α′ are null, so the axis of a helicoid 61 is parallel to the direction of extension of the axis of the other helicoid or helicoids 61 of the mixer 6 as well as to the direction D of flow of the fluid through this exhaust element (3, 4).
  • In such a case, the extension axes of helicoids 61 are parallel between them.
  • However, and according to another configuration, not shown, these helicoids 61 can be arranged so that their extension axes diverge or, preferably, converge in the direction D of flow of the fluid through the exhaust element (3, 4).
  • As mentioned above, these helicoids 61 have a width that is constant, increasing or decreasing, and/or adapted to the structure of the exhaust element (3, 4), in the direction D of flow of the fluid through the exhaust element (3, 4).
  • This feature, combined with that of the direction of extension (in particular in a convergent or divergent manner) of the axes of these helicoids 61 advantageously permits to adjust these helicoids 61 to the structure of the exhaust element (3, 4) (in particular to the cross-section of the latter), in particular in order to occupy the entire internal volume of this exhaust element (3, 4).
  • According to an additional feature of the invention, the axes of these helicoids 61 are arranged according to a matrix (rectangular, triangular, square . . . ), in particular a regular one, with respect to the geometry (respectively rectangular, triangular, round or square . . . ) of the cross-section of this exhaust element (3, 4). Such an embodiment advantageously permits to optimize the positioning and the distribution of these helicoids 61 inside the exhaust element (3, 4), with respect to and depending on the structure of the latter (3, 4).
  • As mentioned above, each helicoid 61 has a direction of rotation.
  • In this connection, it should be noted that, according to an additional feature of the invention, two immediately juxtaposed helicoids 61, and even the entirety of helicoids 61 of the mixer 6, can have the same direction of rotation.
  • Such an embodiment is particularly advantageous when the fluid adopts a longitudinal turbulent movement (swirl) upstream of the mixer 6.
  • However, and according to a preferred embodiment of the invention (FIGS. 3, 5 d, 6 c), such immediately juxtaposed helicoids 61 preferably have a direction of rotation that is opposite (counter revolving helicoids). Such an embodiment advantageously permits to obtain a fluid to be treated that is optimally mixed.
  • Another feature of the invention consists in that the mixer 6 according to the invention comprises a plurality of helicoids 61 and that these helicoids 61 are grouped together inside at least one set (611; 612) comprising at least two helicoids 61.
  • In this connection, it should be noted that helicoids 61 of the same set (611; 612) of helicoids 61 have, as the case may be, a direction of rotation that is opposite (counter revolving helicoids) or (preferably) identical (FIGS. 3, 4 a, 4 b, 5 d, 6 c).
  • A particular embodiment, not shown, can consist of a mixer 6 comprising a single set of at least two helicoids 61, in particular adapted to an exhaust element 4 having a rectangular or oblong cross-section.
  • However, and according to a preferred embodiment of the invention, the mixer 6 includes, on the one hand, at least one set 611 (even a plurality of sets, preferably parallel) of at least two (or more) helicoids 61 aligned in a first set direction and, on the other hand, at least another set 612 (even a plurality of other sets, preferably parallel) of at least two (or more) helicoids 61 aligned in a second set direction, making an angle (preferably a right angle) with the first set direction.
  • In this connection, it should be noted that the number of these sets (611; 612), the number of helicoids 61 constituting such a set (611, 612) as well as the arrangement and the orientation of these sets (611, 612) are determined depending on the geometry of the exhaust element (3, 4) receiving the mixer 6, in particular in order to optimize the filling of the surface offered by the cross-section of the exhaust element (3, 4).
  • A preferred embodiment of the invention (shown in FIGS. 3 through 6 c) consists in that the mixer 6 comprises two sets (611; 612) of helicoids 61, in particular perpendicular, each comprising a pair of helicoids 61. In this embodiment, the two helicoids 61 of the same set (611, 612) have the same direction of rotation, whereas the two immediately juxtaposed helicoids 61 of two different sets (611; 612) may have the same direction of rotation but have preferably, as shown in FIGS. 3 through 6 c, a direction of rotation that is opposite.
  • Such a mixer 6 having four helicoids 61 can be placed inside an exhaust element (3, 4), either consisting of a device 3 for treating gases, as mentioned above, or consisting of an exhaust conduit 4 made based on a traditional (and most commonly used) design and which has a round cross-section (FIGS. 2 through 6 c).
  • In the latter case, the axes of said four helicoids 61 are preferably arranged according to a matrix that is square compared to the round geometry of the cross-section of the exhaust element 41.
  • According to a first embodiment shown in FIGS. 5 a through 5 d, these four helicoids 61 are placed inside a portion 411 having a round cross-section of said exhaust conduit 41.
  • However, and according to a preferred embodiment of the invention shown in FIGS. 6 a through 6 c, said four helicoids 61 are placed inside a specific portion 411′ having a square cross-section defined at the level of said exhaust conduit 41 having a round cross-section. Such an embodiment advantageously permits to increase the effectiveness of the mixer 6, diminishing the surface of the cross-section of the conduit 41 slightly (and even in no way) affected by the action of the helicoids 61, proportionally with respect to a round cross-section.
  • In fact, this portion 411′ having a square cross-section can be defined by deformation of the exhaust conduit 41 having a round cross-section, in particular by expansion.
  • According to another feature of the invention, these helicoids 61 have a diameter between 25 and 40% (preferably in the range of 35%) of the internal diameter (portion 411 having a round cross-section of the conduit 4) or of the maximum cross-section (portion 411′ having a square cross-section of the conduit 4) of the portion (411, 411′) of exhaust conduit 4 receiving these helicoids 61.
  • A preferred embodiment was described above regarding a mixer 6 comprising two sets (611, 612) each consisting of two helicoids 61. This invention is however in no way limited to such a configuration.
  • Also, and according to another embodiment, not shown, said mixer 6 can also include at least one set (611; 612) consisting of more than two helicoids 61 (in particular 3, 4 or more) arranged in alignment. Another embodiment can also consist of a mixer 6 comprising a plurality of sets comprising, for some at least, a different number of helicoids 61.
  • Thus, one can conceive a mixer 6 comprising, on the one hand, at least one set 611 (and even a plurality of sets, preferably parallel) comprising 3, 4 or more helicoids 61 aligned in a first set direction and, on the other hand, at least another set 612 (and even a plurality of other sets, preferably parallel) of at least two (or more) helicoids 61 aligned in a second set direction, making an angle (preferably a right angle) with the first set direction.
  • An additional feature consists in that these helicoids 61 have a length between 60 and 100 mm, preferably in the range of 80 mm, in particular 82 mm.
  • According to another feature of this invention, the static means 6 for mixing the additive with the exhaust gases comprises at least one module 62, each comprising, on the one hand, a plate (621; 622) oriented parallel to the direction D of flow of the fluid through the exhaust element and, on the other hand, at least one helicoid 61 or a set (611; 612) of at least two helicoids 61 extending in the extension downstream of said plate (621; 622).
  • In this connection, it should be noted that such a plate (621; 622) has two longitudinal sides and that, in particular, from one of said longitudinal sides (in particular the downstream longitudinal side) and in its extension extends at least one helicoid 61 or extend the helicoids 61 of a set (611; 612) of helicoids 61 a module 62 includes.
  • In fact, and according to a first embodiment, not shown, such a mixer 6 can include a single module 62 comprising a plate 621 as well as a helicoid 61 or a set of at least two helicoids 611.
  • However, and according to a preferred embodiment, said mixer 6 comprises a plurality of modules 62, on the one hand, each comprising a plate (621; 622) as well as a set (611; 612) of at least two helicoids 61 and, on the other hand, assembled, two by two, in particular perpendicularly, through assembling means 63 at least one plate (621; 622) of at least one such module 62 includes.
  • In this connection, it should be noted that said assembling means 63 consist, on the one hand, of an interlocking means 631, which a plate 621 is provided with, and, on the other hand, by a complementary interlocking means 632, which the other plate 622 is provided with.
  • As shown in FIGS. 4 a and 4 b, such an interlocking means 631 consists of a notch made in the upstream portion of a plate 621 (in particular at the level of the longitudinal side upstream of said plate 621), whereas the complementary interlocking means 632 consists of another notch made correspondingly in the downstream portion of the other plate 622 (in particular at the level of the longitudinal side downstream of said plate 622).
  • As shown in FIGS. 3, 5 d and 6 c, such an assembling is made so that the helicoid 61 of a set 611 of helicoids be, preferably, inserted between two helicoids 61 of another set 612 of helicoids 61, yet being offset laterally with respect to the direction of alignment of the two helicoids 61 of said other set 612.
  • Another feature consists in that a module 62 includes, at the level of at least one of the lateral edges of a plate (621; 622) of said module 62, a wing (641; 642) located in the extension of this plate (621; 622).
  • In the particular case of a mixer 6 comprising a single module 62, the two lateral edges of such a plate 621 can be prolonged by such a wing (641; 641′) that extends in fact laterally with respect to such a plate 621. These wings (641; 641′) advantageously constitute a means 8 for mounting the mixer 6 inside the exhaust element (3, 4), in particular by being received by the reception means 7 comprised by this exhaust element (3, 4) includes
  • In case of a mixer 6 comprising a plurality of modules 62, each of these modules 62 includes, at the level of at least one of the lateral edges of a plate (621; 622) of said module 62, a wing (641; 642) located in the extension of said plate (621; 622) and oriented in the direction of another wing (642; 641) the plate (622; 621) of another module 62 includes and which said wing (641; 642) can be made integral with, in particular by welding.
  • A preferred embodiment shown in FIGS. 3, 4A, 4 b, 5 d and 6 c consists in that the plates (621; 622) of each module 62 comprise, at the level of their two lateral edges, a wing (641, 641′; 642, 642′) located in the extension of such a plate (621; 622) and oriented in the direction of another wing (642, 642′; 641, 641′) the other plate (622; 621) includes and which said blades (641, 641′; 642, 642′) are or can be made integral with, in particular by welding.
  • In this connection, it should be noted that said wings (641, 641′; 642, 642′) advantageously constitute, in fact, a means 8 for mounting the mixer 6 inside the exhaust element (3, 4), in particular by being received by the receiving means 7 this exhaust element (3, 4) includes.
  • Another advantageous feature of the invention consists in that a module 62 as described above preferably consists of a single part, in particular a metallic part, preferably made by cutting out, boring, in particular complemented by folding.
  • The following are defined, in particular, at the level of such a single part:
      • a plate (621; 622);
      • at least one helicoid 61 or a set (611; 612) of at least two helicoids 61;
  • and, if such a module 62 includes an assembling means (63, 631, 632), at least one wing (641, 641′; 642, 642′).
  • As mentioned above, the exhaust element 3 comprising a mixer 6 having the abovementioned features may consist of a device 3 for the physical and/or chemical treatment of exhaust gases comprising, inside, the means 6 for mixing an additive with the exhaust gases as well as, downstream of this mixer 6, a means for the physical and/or chemical treatment of this mixture.
  • Such a treatment device 3 may consist:
      • either of a catalytic converter 32 for the treatment of nitrous oxides (NOx) contained in the exhaust gases, in particular for catalytic reduction of said nitrous oxides (NOx), for example a three-way catalytic converter of the type TWC or also a catalytic converter of the type SCR (Selective Catalytic Reduction);
      • or of a more complex exhaust element 3 (usually called cata-FAP) incorporating such a catalytic converter 32 as well as a particulate trap 31 of the abovementioned type.
  • However, and according to a preferred embodiment, the exhaust element 4 according to the invention preferably consists of an exhaust conduit 41 comprising, inside, the means 6 for mixing an additive with the exhaust gases having the abovementioned characteristics.
  • Finally, the invention also relates to a line 2 for exhausting the gases for motor vehicles with a combustion engine 1 and comprising, according to the direction of the flowing of the gases within said exhaust line 2, on the one hand, a means 5 for introducing into this exhaust line 2 an additive to be added to the exhaust gases, on the other hand, a static means 6 for mixing this additive with the exhaust gases and, on yet another hand, a means for the physical and/or chemical treatment of this mixture.
  • According to the invention, this exhaust line 2 comprises an exhaust element (3, 4) having the abovementioned features, and comprising said means 6 for mixing the additive with the exhaust gases. Said mixer 6 is interposed between the means 5 for introducing the additive into the line 2 and the means for treating the mixture (in particular comprised, inside, by a device 3 for the physical and/or chemical treatment of this mixture in case of an exhaust element 3 consisting of such a device 3).
  • This invention will find an application in the field of manufacturing equipment for exhausting the gases emitted by the engine 1 of a motor vehicle and obtained from the burning of a fuel, in particular of a fuel of the diesel type, inside such an engine 1.
  • Exemplary Embodiment
  • Output of the engine at full load: 600 kg/h at 600° C.
  • Mixer 6:
      • two pairs of helicoids (611; 612);
      • two helicoids of the same pair with the same direction of rotation;
      • two helicoids of two different pairs with an opposite direction of rotation (counter revolving helicoids);
      • pitch and length of helicoids: 82 mm
      • diameter of helicoids: 21 mm
      • exhaust element: a conduit having an internal diameter of 60 mm
      • back pressure generated downstream of the mixer: 33 mbar

Claims (17)

1. Exhaust element comprising:
a line for exhausting the gases of a motor vehicle with a combustion engine and through the inside of which flows a fluid being comprised of the exhaust gases as well as of an additive to these gases,
a static means mounted inside the exhaust element, for mixing this additive with these exhaust gases, wherein the static means for mixing the additive with the exhaust gases comprises at least one helicoid having an axis extending in a direction forming a set angle with the direction of flow of the fluid through this exhaust element.
2. Exhaust element according to claim 1, wherein the helicoid has an increasing width, in the direction of flow of the fluid through the exhaust element.
3. Exhaust element according to claim 1, wherein the helicoid has a decreasing width, in the direction of flow of the fluid through the exhaust element.
4. Exhaust element according to claim 1, wherein the direction of extension of the axis of a helicoid forms, with the direction of flow of the fluid through the exhaust element, an angle between 0 and 30°.
5. Exhaust element according to claim 1, further comprising: a mixer comprised of a plurality of helicoids, each helicoid having an axis, extending in a direction forming a set angle, in particular between 0 and 30°, with the direction of extension of the axis of another helicoid and extending in a direction forming a set angle, in particular between 0 and 30°, with the direction of flow of the fluid through this exhaust element.
6. Exhaust element according to claim 5, wherein the helicoids are arranged so that their extension axes diverge, in the direction of flow of the fluid through the exhaust element.
7. Exhaust element according to claim 5, wherein the helicoids are arranged so that their extension axes converge, in the direction of flow of the fluid through the exhaust element.
8. Exhaust element according to claim 5, wherein the axes of helicoids are arranged according to a matrix, in particular a regular one, with respect to the geometry of the section of the exhaust element.
9. Exhaust element according to claim 5, wherein two immediately juxtaposed helicoids have the same direction of rotation.
10. Exhaust element according to claim 5, wherein two immediately juxtaposed helicoids have an opposite direction of rotation.
11. Exhaust element according to claim 5, wherein the mixer comprises a plurality of helicoids and wherein these helicoids are grouped together inside at least one set comprising at least two helicoids having preferably the same direction of rotation.
12. Exhaust element according to claim 5, wherein the mixer comprises at least one module comprising a plate oriented parallel to the direction of flow of the fluid through the exhaust element and at least one or a set of at least two helicoids extending in the extension downstream of said plate.
13. Exhaust element according to claim 12, wherein the mixer comprises a plurality of modules, each module comprising a plate as well as a set of at least two helicoids and assembled, two by two, in particular perpendicularly, through assembling means at least one plate of at least one such module includes.
14. Exhaust element according to claim 13, wherein a module comprises, at the level of at least one of the lateral edges of a plate of said module, a wing located in the extension of said plate and oriented in the direction of another wing the plate of another module comprises, wherein said wing is made integral with, in particular by welding.
15. Exhaust element according to claim 12, wherein the module comprises a single part, in particular a metallic part, preferably made by cutting out, boring, in particular complemented by folding.
16. Exhaust element according to claim 5, wherein the exhaust element comprises a means for receiving the mixer.
17. Exhaust element according to claim 1, wherein the exhaust element comprises either of an exhaust conduit comprising, inside, the means for mixing an additive with the exhaust gases, or of a device for the physical and/or chemical treatment of exhaust gases comprising, inside, the means for mixing an additive with the exhaust gases as well as, downstream of this mixer, a means for the physical and/or chemical treatment of this mixture.
US12/989,769 2008-04-29 2009-04-23 Exhaust element comprising a static means for mixing an additive into the exhaust gases Abandoned US20110036082A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR0852893A FR2930594B1 (en) 2008-04-29 2008-04-29 Exhaust element comprising a static means for mixing an additive of exhaust gas
FR0852893 2008-04-29
PCT/FR2009/050755 WO2009138668A2 (en) 2008-04-29 2009-04-23 Exhaust element comprising a static means for mixing an additive into the exhaust gases

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KR (1) KR20110009685A (en)
DE (1) DE112009001055T5 (en)
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Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014077970A1 (en) * 2012-11-13 2014-05-22 Cummins Filtration Ip, Inc. Air filter having vortex-generating flow guide
US8734545B2 (en) 2008-03-28 2014-05-27 Exxonmobil Upstream Research Company Low emission power generation and hydrocarbon recovery systems and methods
US8939638B2 (en) 2008-04-21 2015-01-27 Tenneco Automotive Operating Company Inc. Method for mixing an exhaust gas flow
US8984857B2 (en) 2008-03-28 2015-03-24 Exxonmobil Upstream Research Company Low emission power generation and hydrocarbon recovery systems and methods
US9027321B2 (en) 2008-03-28 2015-05-12 Exxonmobil Upstream Research Company Low emission power generation and hydrocarbon recovery systems and methods
CN104619965A (en) * 2012-08-24 2015-05-13 双叶产业株式会社 Exhaust mixer
US9095827B2 (en) 2008-04-21 2015-08-04 Tenneco Automotive Operating Company Inc. Exhaust gas flow mixer
US9222671B2 (en) 2008-10-14 2015-12-29 Exxonmobil Upstream Research Company Methods and systems for controlling the products of combustion
US9353682B2 (en) 2012-04-12 2016-05-31 General Electric Company Methods, systems and apparatus relating to combustion turbine power plants with exhaust gas recirculation
US9463417B2 (en) 2011-03-22 2016-10-11 Exxonmobil Upstream Research Company Low emission power generation systems and methods incorporating carbon dioxide separation
DE102016108287A1 (en) 2015-05-07 2016-11-10 Ford Global Technologies, Llc Exhaust gas flow device
US9512759B2 (en) 2013-02-06 2016-12-06 General Electric Company System and method for catalyst heat utilization for gas turbine with exhaust gas recirculation
DE102016111374A1 (en) 2015-06-24 2016-12-29 Ford Global Technologies, Llc Exhaust gas flow device
US9534525B2 (en) 2015-05-27 2017-01-03 Tenneco Automotive Operating Company Inc. Mixer assembly for exhaust aftertreatment system
US9574496B2 (en) 2012-12-28 2017-02-21 General Electric Company System and method for a turbine combustor
US9581081B2 (en) 2013-01-13 2017-02-28 General Electric Company System and method for protecting components in a gas turbine engine with exhaust gas recirculation
US9587510B2 (en) 2013-07-30 2017-03-07 General Electric Company System and method for a gas turbine engine sensor
US9599021B2 (en) 2011-03-22 2017-03-21 Exxonmobil Upstream Research Company Systems and methods for controlling stoichiometric combustion in low emission turbine systems
US9599070B2 (en) 2012-11-02 2017-03-21 General Electric Company System and method for oxidant compression in a stoichiometric exhaust gas recirculation gas turbine system
US9611756B2 (en) 2012-11-02 2017-04-04 General Electric Company System and method for protecting components in a gas turbine engine with exhaust gas recirculation
US9618261B2 (en) 2013-03-08 2017-04-11 Exxonmobil Upstream Research Company Power generation and LNG production
US9617914B2 (en) 2013-06-28 2017-04-11 General Electric Company Systems and methods for monitoring gas turbine systems having exhaust gas recirculation
US9631815B2 (en) 2012-12-28 2017-04-25 General Electric Company System and method for a turbine combustor
US9631542B2 (en) 2013-06-28 2017-04-25 General Electric Company System and method for exhausting combustion gases from gas turbine engines
DE102016121862A1 (en) 2015-11-17 2017-05-18 Ford Global Technologies, Llc exhaust mixer
US9664081B2 (en) 2007-07-24 2017-05-30 Faurecia Emissions Control Technologies, Germany Gmbh Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine
US9670841B2 (en) 2011-03-22 2017-06-06 Exxonmobil Upstream Research Company Methods of varying low emission turbine gas recycle circuits and systems and apparatus related thereto
US9689309B2 (en) 2011-03-22 2017-06-27 Exxonmobil Upstream Research Company Systems and methods for carbon dioxide capture in low emission combined turbine systems
US9708977B2 (en) 2012-12-28 2017-07-18 General Electric Company System and method for reheat in gas turbine with exhaust gas recirculation
US9726064B2 (en) 2015-04-30 2017-08-08 Faurecia Emissions Control Technologies, Usa, Llc Mixer for use in a vehicle exhaust system
US9732675B2 (en) 2010-07-02 2017-08-15 Exxonmobil Upstream Research Company Low emission power generation systems and methods
US9732673B2 (en) 2010-07-02 2017-08-15 Exxonmobil Upstream Research Company Stoichiometric combustion with exhaust gas recirculation and direct contact cooler
US9737835B2 (en) 2012-07-31 2017-08-22 Cummins Filtration Ip, Inc. Methods and apparatuses for separating liquid particles from a gas-liquid stream
US9752458B2 (en) 2013-12-04 2017-09-05 General Electric Company System and method for a gas turbine engine
US9784140B2 (en) 2013-03-08 2017-10-10 Exxonmobil Upstream Research Company Processing exhaust for use in enhanced oil recovery
US9784185B2 (en) 2012-04-26 2017-10-10 General Electric Company System and method for cooling a gas turbine with an exhaust gas provided by the gas turbine
US9784182B2 (en) 2013-03-08 2017-10-10 Exxonmobil Upstream Research Company Power generation and methane recovery from methane hydrates
US9803865B2 (en) 2012-12-28 2017-10-31 General Electric Company System and method for a turbine combustor
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US9869247B2 (en) 2014-12-31 2018-01-16 General Electric Company Systems and methods of estimating a combustion equivalence ratio in a gas turbine with exhaust gas recirculation
US9885290B2 (en) 2014-06-30 2018-02-06 General Electric Company Erosion suppression system and method in an exhaust gas recirculation gas turbine system
US9903588B2 (en) 2013-07-30 2018-02-27 General Electric Company System and method for barrier in passage of combustor of gas turbine engine with exhaust gas recirculation
US9903316B2 (en) 2010-07-02 2018-02-27 Exxonmobil Upstream Research Company Stoichiometric combustion of enriched air with exhaust gas recirculation
US9903271B2 (en) 2010-07-02 2018-02-27 Exxonmobil Upstream Research Company Low emission triple-cycle power generation and CO2 separation systems and methods
US9915200B2 (en) 2014-01-21 2018-03-13 General Electric Company System and method for controlling the combustion process in a gas turbine operating with exhaust gas recirculation
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US10208677B2 (en) 2012-12-31 2019-02-19 General Electric Company Gas turbine load control system
US10215412B2 (en) 2012-11-02 2019-02-26 General Electric Company System and method for load control with diffusion combustion in a stoichiometric exhaust gas recirculation gas turbine system
US10221762B2 (en) 2013-02-28 2019-03-05 General Electric Company System and method for a turbine combustor
US10227920B2 (en) 2014-01-15 2019-03-12 General Electric Company Gas turbine oxidant separation system
US10253690B2 (en) 2016-02-03 2019-04-09 General Electric Company Turbine system with exhaust gas recirculation, separation and extraction

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953120A (en) * 1932-12-20 1934-04-03 Charles A Miller Exhaust gas purifier for vehicles
US2108671A (en) * 1933-12-27 1938-02-15 Gonsaburo Ishibashi Muffler of internal combustion engines
US3768260A (en) * 1971-08-13 1973-10-30 Westinghouse Electric Corp Manifold thermal reactor
US4106287A (en) * 1975-02-03 1978-08-15 Exxon Research & Engineering Co. Reducing pollution from internal combustion engines
US4466741A (en) * 1982-01-16 1984-08-21 Hisao Kojima Mixing element and motionless mixer
DE3536315A1 (en) * 1985-10-11 1987-04-16 Sueddeutsche Kuehler Behr Catalyst arrangement for the purification of exhaust gases, in particular of an internal combustion engine
US4850798A (en) * 1988-11-28 1989-07-25 Bailey Dennis B Modified helicoidal wind responsive device
US5104233A (en) * 1987-07-16 1992-04-14 Hisao Kojima Mixing element with a tapered porous body
JPH04131123A (en) * 1990-09-20 1992-05-01 Meidensha Corp Denitration apparatus
US5916134A (en) * 1997-09-10 1999-06-29 Industrial Technology Research Institute Catalytic converter provided with vortex generator
JP2000061282A (en) * 1998-08-24 2000-02-29 Toda Kogyo Corp Granule mixer
USD449792S1 (en) * 2001-03-21 2001-10-30 Isabella Nadeau Dynamic wind propelled sculpture
USD483688S1 (en) * 2002-10-28 2003-12-16 Dennis J. Kent Ornament
USD554546S1 (en) * 2006-05-31 2007-11-06 Hart James R Wind turbine
US20080223022A1 (en) * 2005-09-26 2008-09-18 Faurecia Abgastechnik Gmbh Exhaust-gas System Having an Injection Nozzle
EP1982756A1 (en) * 2007-04-19 2008-10-22 Magneti Marelli Sistemi di Scarico S.p.a. An exhaust system of an internal combustion engine
US20090019843A1 (en) * 2007-07-17 2009-01-22 Ford Global Technologies, Llc Approach for Delivering a Liquid Reductant into an Exhaust Flow of a Fuel Burning Engine
FR2937692A3 (en) * 2008-10-27 2010-04-30 Renault Sas Fluid e.g. fuel, mixing element i.e. mixer for diesel engine of motor vehicle, has generating unit for generating swirling movement within central flow part of fluid flow channel, and support arms extending diametrically within frame
US20110067381A1 (en) * 2009-09-22 2011-03-24 Ford Global Technologies, Llc Method for NOx Reduction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123161A1 (en) 1991-07-12 1993-01-14 Siemens Ag Static mixers
EP1514591A1 (en) * 2003-09-15 2005-03-16 J. Eberspächer GmbH & Co. KG Hot gas flow channel, especially within an exhaust system of an internal combustion engine upstream of a catalyst

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953120A (en) * 1932-12-20 1934-04-03 Charles A Miller Exhaust gas purifier for vehicles
US2108671A (en) * 1933-12-27 1938-02-15 Gonsaburo Ishibashi Muffler of internal combustion engines
US3768260A (en) * 1971-08-13 1973-10-30 Westinghouse Electric Corp Manifold thermal reactor
US4106287A (en) * 1975-02-03 1978-08-15 Exxon Research & Engineering Co. Reducing pollution from internal combustion engines
US4466741A (en) * 1982-01-16 1984-08-21 Hisao Kojima Mixing element and motionless mixer
DE3536315A1 (en) * 1985-10-11 1987-04-16 Sueddeutsche Kuehler Behr Catalyst arrangement for the purification of exhaust gases, in particular of an internal combustion engine
US5104233A (en) * 1987-07-16 1992-04-14 Hisao Kojima Mixing element with a tapered porous body
US4850798A (en) * 1988-11-28 1989-07-25 Bailey Dennis B Modified helicoidal wind responsive device
JPH04131123A (en) * 1990-09-20 1992-05-01 Meidensha Corp Denitration apparatus
US5916134A (en) * 1997-09-10 1999-06-29 Industrial Technology Research Institute Catalytic converter provided with vortex generator
JP2000061282A (en) * 1998-08-24 2000-02-29 Toda Kogyo Corp Granule mixer
USD449792S1 (en) * 2001-03-21 2001-10-30 Isabella Nadeau Dynamic wind propelled sculpture
USD483688S1 (en) * 2002-10-28 2003-12-16 Dennis J. Kent Ornament
US20080223022A1 (en) * 2005-09-26 2008-09-18 Faurecia Abgastechnik Gmbh Exhaust-gas System Having an Injection Nozzle
USD554546S1 (en) * 2006-05-31 2007-11-06 Hart James R Wind turbine
EP1982756A1 (en) * 2007-04-19 2008-10-22 Magneti Marelli Sistemi di Scarico S.p.a. An exhaust system of an internal combustion engine
US20090019843A1 (en) * 2007-07-17 2009-01-22 Ford Global Technologies, Llc Approach for Delivering a Liquid Reductant into an Exhaust Flow of a Fuel Burning Engine
FR2937692A3 (en) * 2008-10-27 2010-04-30 Renault Sas Fluid e.g. fuel, mixing element i.e. mixer for diesel engine of motor vehicle, has generating unit for generating swirling movement within central flow part of fluid flow channel, and support arms extending diametrically within frame
US20110067381A1 (en) * 2009-09-22 2011-03-24 Ford Global Technologies, Llc Method for NOx Reduction

Cited By (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664081B2 (en) 2007-07-24 2017-05-30 Faurecia Emissions Control Technologies, Germany Gmbh Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine
US8734545B2 (en) 2008-03-28 2014-05-27 Exxonmobil Upstream Research Company Low emission power generation and hydrocarbon recovery systems and methods
US8984857B2 (en) 2008-03-28 2015-03-24 Exxonmobil Upstream Research Company Low emission power generation and hydrocarbon recovery systems and methods
US9027321B2 (en) 2008-03-28 2015-05-12 Exxonmobil Upstream Research Company Low emission power generation and hydrocarbon recovery systems and methods
US8939638B2 (en) 2008-04-21 2015-01-27 Tenneco Automotive Operating Company Inc. Method for mixing an exhaust gas flow
US9440204B2 (en) 2008-04-21 2016-09-13 Tenneco Automotive Operating Company Inc. Method for mixing an exhaust gas flow
US9095827B2 (en) 2008-04-21 2015-08-04 Tenneco Automotive Operating Company Inc. Exhaust gas flow mixer
US9975093B2 (en) 2008-04-21 2018-05-22 Tenneco Automotive Operation Company Inc. Exhaust gas flow mixer
US9222671B2 (en) 2008-10-14 2015-12-29 Exxonmobil Upstream Research Company Methods and systems for controlling the products of combustion
US9719682B2 (en) 2008-10-14 2017-08-01 Exxonmobil Upstream Research Company Methods and systems for controlling the products of combustion
US9903316B2 (en) 2010-07-02 2018-02-27 Exxonmobil Upstream Research Company Stoichiometric combustion of enriched air with exhaust gas recirculation
US9732673B2 (en) 2010-07-02 2017-08-15 Exxonmobil Upstream Research Company Stoichiometric combustion with exhaust gas recirculation and direct contact cooler
US9903271B2 (en) 2010-07-02 2018-02-27 Exxonmobil Upstream Research Company Low emission triple-cycle power generation and CO2 separation systems and methods
US9732675B2 (en) 2010-07-02 2017-08-15 Exxonmobil Upstream Research Company Low emission power generation systems and methods
US9599021B2 (en) 2011-03-22 2017-03-21 Exxonmobil Upstream Research Company Systems and methods for controlling stoichiometric combustion in low emission turbine systems
US9670841B2 (en) 2011-03-22 2017-06-06 Exxonmobil Upstream Research Company Methods of varying low emission turbine gas recycle circuits and systems and apparatus related thereto
US9689309B2 (en) 2011-03-22 2017-06-27 Exxonmobil Upstream Research Company Systems and methods for carbon dioxide capture in low emission combined turbine systems
US9463417B2 (en) 2011-03-22 2016-10-11 Exxonmobil Upstream Research Company Low emission power generation systems and methods incorporating carbon dioxide separation
US9810050B2 (en) 2011-12-20 2017-11-07 Exxonmobil Upstream Research Company Enhanced coal-bed methane production
US9353682B2 (en) 2012-04-12 2016-05-31 General Electric Company Methods, systems and apparatus relating to combustion turbine power plants with exhaust gas recirculation
US9784185B2 (en) 2012-04-26 2017-10-10 General Electric Company System and method for cooling a gas turbine with an exhaust gas provided by the gas turbine
US9737835B2 (en) 2012-07-31 2017-08-22 Cummins Filtration Ip, Inc. Methods and apparatuses for separating liquid particles from a gas-liquid stream
CN104619965A (en) * 2012-08-24 2015-05-13 双叶产业株式会社 Exhaust mixer
US10161312B2 (en) 2012-11-02 2018-12-25 General Electric Company System and method for diffusion combustion with fuel-diluent mixing in a stoichiometric exhaust gas recirculation gas turbine system
US9611756B2 (en) 2012-11-02 2017-04-04 General Electric Company System and method for protecting components in a gas turbine engine with exhaust gas recirculation
US9599070B2 (en) 2012-11-02 2017-03-21 General Electric Company System and method for oxidant compression in a stoichiometric exhaust gas recirculation gas turbine system
US9869279B2 (en) 2012-11-02 2018-01-16 General Electric Company System and method for a multi-wall turbine combustor
US10215412B2 (en) 2012-11-02 2019-02-26 General Electric Company System and method for load control with diffusion combustion in a stoichiometric exhaust gas recirculation gas turbine system
US10100741B2 (en) 2012-11-02 2018-10-16 General Electric Company System and method for diffusion combustion with oxidant-diluent mixing in a stoichiometric exhaust gas recirculation gas turbine system
US10138815B2 (en) 2012-11-02 2018-11-27 General Electric Company System and method for diffusion combustion in a stoichiometric exhaust gas recirculation gas turbine system
US10107495B2 (en) 2012-11-02 2018-10-23 General Electric Company Gas turbine combustor control system for stoichiometric combustion in the presence of a diluent
CN104769254A (en) * 2012-11-13 2015-07-08 康明斯滤清系统知识产权公司 Air filter having vortex-generating flow guide
US9504947B2 (en) 2012-11-13 2016-11-29 Cummins Filtration Ip, Inc. Air filter assemblies and carrier frames having vortex-generating flow guide
WO2014077970A1 (en) * 2012-11-13 2014-05-22 Cummins Filtration Ip, Inc. Air filter having vortex-generating flow guide
US9708977B2 (en) 2012-12-28 2017-07-18 General Electric Company System and method for reheat in gas turbine with exhaust gas recirculation
US9574496B2 (en) 2012-12-28 2017-02-21 General Electric Company System and method for a turbine combustor
US9631815B2 (en) 2012-12-28 2017-04-25 General Electric Company System and method for a turbine combustor
US9803865B2 (en) 2012-12-28 2017-10-31 General Electric Company System and method for a turbine combustor
US10208677B2 (en) 2012-12-31 2019-02-19 General Electric Company Gas turbine load control system
US9581081B2 (en) 2013-01-13 2017-02-28 General Electric Company System and method for protecting components in a gas turbine engine with exhaust gas recirculation
US9512759B2 (en) 2013-02-06 2016-12-06 General Electric Company System and method for catalyst heat utilization for gas turbine with exhaust gas recirculation
US10082063B2 (en) 2013-02-21 2018-09-25 Exxonmobil Upstream Research Company Reducing oxygen in a gas turbine exhaust
US9938861B2 (en) 2013-02-21 2018-04-10 Exxonmobil Upstream Research Company Fuel combusting method
US9932874B2 (en) 2013-02-21 2018-04-03 Exxonmobil Upstream Research Company Reducing oxygen in a gas turbine exhaust
US10221762B2 (en) 2013-02-28 2019-03-05 General Electric Company System and method for a turbine combustor
US9618261B2 (en) 2013-03-08 2017-04-11 Exxonmobil Upstream Research Company Power generation and LNG production
US9784182B2 (en) 2013-03-08 2017-10-10 Exxonmobil Upstream Research Company Power generation and methane recovery from methane hydrates
US9784140B2 (en) 2013-03-08 2017-10-10 Exxonmobil Upstream Research Company Processing exhaust for use in enhanced oil recovery
US9631542B2 (en) 2013-06-28 2017-04-25 General Electric Company System and method for exhausting combustion gases from gas turbine engines
US10012151B2 (en) 2013-06-28 2018-07-03 General Electric Company Systems and methods for controlling exhaust gas flow in exhaust gas recirculation gas turbine systems
US9617914B2 (en) 2013-06-28 2017-04-11 General Electric Company Systems and methods for monitoring gas turbine systems having exhaust gas recirculation
US9835089B2 (en) 2013-06-28 2017-12-05 General Electric Company System and method for a fuel nozzle
US9587510B2 (en) 2013-07-30 2017-03-07 General Electric Company System and method for a gas turbine engine sensor
US9903588B2 (en) 2013-07-30 2018-02-27 General Electric Company System and method for barrier in passage of combustor of gas turbine engine with exhaust gas recirculation
US9951658B2 (en) 2013-07-31 2018-04-24 General Electric Company System and method for an oxidant heating system
US10030588B2 (en) 2013-12-04 2018-07-24 General Electric Company Gas turbine combustor diagnostic system and method
US9752458B2 (en) 2013-12-04 2017-09-05 General Electric Company System and method for a gas turbine engine
US10227920B2 (en) 2014-01-15 2019-03-12 General Electric Company Gas turbine oxidant separation system
US9863267B2 (en) 2014-01-21 2018-01-09 General Electric Company System and method of control for a gas turbine engine
US9915200B2 (en) 2014-01-21 2018-03-13 General Electric Company System and method for controlling the combustion process in a gas turbine operating with exhaust gas recirculation
US10079564B2 (en) 2014-01-27 2018-09-18 General Electric Company System and method for a stoichiometric exhaust gas recirculation gas turbine system
US10047633B2 (en) 2014-05-16 2018-08-14 General Electric Company Bearing housing
US9885290B2 (en) 2014-06-30 2018-02-06 General Electric Company Erosion suppression system and method in an exhaust gas recirculation gas turbine system
US10060359B2 (en) 2014-06-30 2018-08-28 General Electric Company Method and system for combustion control for gas turbine system with exhaust gas recirculation
US9819292B2 (en) 2014-12-31 2017-11-14 General Electric Company Systems and methods to respond to grid overfrequency events for a stoichiometric exhaust recirculation gas turbine
US9869247B2 (en) 2014-12-31 2018-01-16 General Electric Company Systems and methods of estimating a combustion equivalence ratio in a gas turbine with exhaust gas recirculation
US10094566B2 (en) 2015-02-04 2018-10-09 General Electric Company Systems and methods for high volumetric oxidant flow in gas turbine engine with exhaust gas recirculation
US10145269B2 (en) 2015-03-04 2018-12-04 General Electric Company System and method for cooling discharge flow
US9726064B2 (en) 2015-04-30 2017-08-08 Faurecia Emissions Control Technologies, Usa, Llc Mixer for use in a vehicle exhaust system
US10086332B2 (en) 2015-05-07 2018-10-02 Ford Global Technologies, Llc Exhaust flow device
DE102016108287A1 (en) 2015-05-07 2016-11-10 Ford Global Technologies, Llc Exhaust gas flow device
US9534525B2 (en) 2015-05-27 2017-01-03 Tenneco Automotive Operating Company Inc. Mixer assembly for exhaust aftertreatment system
DE102016111374A1 (en) 2015-06-24 2016-12-29 Ford Global Technologies, Llc Exhaust gas flow device
US9822688B2 (en) 2015-06-24 2017-11-21 Ford Global Technologies, Llc Exhaust flow device
US10066530B2 (en) 2015-11-17 2018-09-04 Ford Global Technologies, Llc Exhaust gas mixer
DE102016121862A1 (en) 2015-11-17 2017-05-18 Ford Global Technologies, Llc exhaust mixer
US10253690B2 (en) 2016-02-03 2019-04-09 General Electric Company Turbine system with exhaust gas recirculation, separation and extraction

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WO2009138668A3 (en) 2010-01-14
DE112009001055T5 (en) 2011-07-14

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