• 专利附录
  • 专利说明
  • 权利要求
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    • 专利摘要:
    device for dispensing fluids in discharge systems an apparatus for dispensing fluids, in particular a mixture of water-urea or liquid fuel, in discharge systems of an internal combustion engine comprises an injection device which discharges into the treatment of discharge, in particular, upstream of a so-called scr catalytic converter. the combination of a multiplicity of individual measurements is provided to achieve a uniform mixing of the fluids with the discharge gas and complete evaporation of the fluids in the discharge gas. the individual measurements include at least one turbulence generating device and / or at least one mixing device, preferably at least one catalytic converter and an injection nozzle tip, said nozzle being arranged at a predefined distance from of a wall of the discharge tract.
    公开号:BR112013016418A2
    申请号:R112013016418
    申请日:2011-10-27
    公开日:2019-12-31
    发明作者:Schmidt Jürgen；Fischer Michael；Muller Michael
    申请人:Boysen Friedrich Gmbh Co Kg；
    IPC主号:
    专利说明:

    DISFQSITIVE FOR DISTRIBUTION OF FLUIDS.
    Presents, invention refers to an apparatus for the distribution of fluids, in particular, · a mixture of urea or liquid fuel, in the discharge systems of an internal combustion engine, comprising a disposali «od® injection opening for the trace discharge, in particular, before a so-called SCR catalytic converter.
    Due to. fact of. the emission regulations for internal combustion engines are becoming more and more stringent, it has been necessary to reduce the nitrogen oxides (NOx) present in the exhaust gas. A known possibility is to reduce the oxides nltroq-D® Ênio nitrogen to water in a so - called selective catalytic reduction (SCRj This occurs at a so - called S-15 natalisador Ó.R by using a reducing injected will · QAS:.. A discharge mixture of water / portion can be used: in particular, for this purpose, whose utex is decommitted to the non-discharging gas, which reacts with nitrogen oxides. compounds of different hydrocarbons (HO) also could also be injected into the exhaust gas.
    In these black reduction alone and in general desirable that, for LADC,: the reducer is mixed as unifOrmemehte possible with the exhaust gas and on the other ^ 25 side, is reached one spraying or termedise the liquid reducing ^ a < more. possible completion ,. para -que · sngá: · θό1ί03 high efficiency in .reduction: and a waste-free operation ..
    It is, therefore, the object of the invention to improve the distribution of fluids in the exhaust gas , .30 where necessary, to ensure complete vaporization of fluids without residues in the simplest possible way.
    The object is satisfied by a different apparatus: the aspects of claim 1, and, in particular, by one.
    combination of a plurality of individual measurements to achieve uniform mixing of the fluids with the discharge gas and a complete vaporization of the fluids in the gas gives discharge, where the individual measurements comprise at least one turbulence generating device and / or less
    A mixing apparatus, preferably with a catalyst ': a nozzle for the injection device which is arranged in. a predefined spacing from the wall of the tract of -descending »It has been recognized that, according to the invention, a good mixture of vaporisation of the residues of the fluids in the exhaust gas can only be achieved if a plurality of measurements are combined with each other in a simple way, particularm in particular, the injection characteristic, or the spray characteristic of the injection device, the length of the distribution route or. via temperature, the temperature, as well as the shape of the tube and the tube cross section of the respective uesaárga system section are decisive for the selection and contxguraçàG of the individual measurements., A distribution: and vaporization exempt. 30 of residues of fluids in-flow- of .discharge gas .can therefore be achieved in the desirable way, taking into account: thermodynamic circumstances and installation specifications, as well as by means of an appropriate equipment of the di f event esmed comings in life,
    Four. developments of the invention are expressed in the dependent claims, in the description and in the sixth annexes -,
    According. an embodiment of. invention, at least one device generating. turbulence is provided> α 3D which comprises a plurality of gas vanes arranged in the form of a turbine. Tal di spòsi.t.iw. turbulence generator can be provided - upstream or downstream of the injection device, depending on the apneation, or the generation of turbulence in the gas flow 4s discharge pads ; be hit by the gas vanes. In addition, the reeds. gas could act as a vaporized surface :, and can;
    thus increasing the degree of vaporization. A particularly large vaporizing surface is provided due to the turbine-like arrangement. of the gas vanes, The turbine type realization makes a good blocking of the section; cross-section of discharge gas, with a ratio of discharge back pressure and mixing force: can lf be optimized for length and width good. as the · hooking angle of the vanes.
    A mixing apparatus may furthermore be provided, which comprises at least one. turbulence generating device and a tubular vaporising device. The mixing apparatus is preferably arranged downstream of the injection device and serves to mix the injected fluids and optionally pre-homogeneous fluids - evenly with the discharge gas, · A particularly high degree of mixing can be achieved by a tick-in <. of 20 a device that generates turbulence - which can, in turn, in particular, comprise a plurality of and vanes gas to the * ns ^ in the · of the-, tarb:. ', a - - _r, -coSà'V- 'c steam 1 tubular ration, with a, order e. the spacing between the two Gompcnente.s podendc match the application .respective, 25 According to. another embodiment of the invention, a hydrolysis catalyst is provided, which is arranged, in particular, upstream of a so-called <a.atal.isation: r SCB. Such a hydrolysis catalyst, for example it can assist in the conversion of isocyanic acid to ammonia and dioxide of carbon 3, and thus to assist one. main catalyst Slid
    W element of the flow guidance, can you additionally, be provided which is arranged in the interior of the discharge tract and is at least regionally distant from a
    4/19 wall of the discharge tract, and which protrudes at least partially for a flexible decoupling section of the drain: in which the element of flow guidance in. In particular, it ends in a region downstream of the .5 descruplamentò section. The .flexible uncoupling sections in the discharge, in particular, serve to measure a transmission of vibrations or different thermal expansions of discharge components of the discharge- These sections decoupling, for example, may be designed and 10 oom © manaueira corrugated, wrapped hose © u wound metallic hose aspire. Depending on the application, a cuinning of the named hose types may also be present, that is, for example, a coiled hose re-coated by a corrugated hose. Unwanted deposits of injected fluids and / or reaction products from the discharge gas and fluids can be deposited in the recesses and wall irregularities present in these decoupling sections. These depositions are prevented insofar as the discharge gas is conducted, pxeferenciaciIIly, through 2Q of smooth-wall flow guiding elements., and is thus prevented · at least sectionally from flowing near the irregular wall of the section dé: s.au © p: lament ·. The guiding element: flow can also influence the flow of the exhaust gas in the desired shape ρο-r its special shape, · for example, by cavities, depressions, xentations or the coating.
    The injection device can be fitted, in particular, with the amount of the flexible untreated section of the discharge tract ·, with the advantage of -s & e-vitar deposition. © · guiding element of. flow and then particularly effective, if a. application require, o; device. injection also. it can be arranged between two sections if flexible decoupling from the discharge tract.
    flow guide element can be configured as an inner tube at least .sectionally coaxial to the discharge tract. This type of internal tube is also called an in liner ”. The inner tube is designed prefarenoialrasnte totally in walls.
    flow guide element I could have an extension section, for example, in the form of a piece of tube> split in the longitudinal direction, at its downstream end, said extension section being interrupted 10 peripherally and, in particular, being of shape of. my shell. This type of extension section can be used for the direct capture of .fluid residues, in order to subsequently vaporize them, according to one embodiment, the flow guiding element is sequentially tapered, viewed in the direction of the flow of discharge gas. The funneling site is preferably disposed downstream of a mixing apparatus, alternatively or additionally, a funneling site. also, it can be provide the amount of a 2G mixing apparatus. A bottleneck effects an increase in the rate
    d e f 1 u x ο ο e v 1 d o a o e f e 11 o.k '.d-' in cos dc i-ítu Venturi,ga. which facilitates the. mixture In açord the with other aspect., the element o. .inguide in flow is i .ntegrated η o t r a t o d e d e s c a r g a, d e
    25. such a slurry that it asks to be drained out after the exhaust gas outside. The discharge gas in this type of cunaretization is therefore not only conducted through the flow guiding element, but is also carried close to it outside. A portion of the flow of the gas · u-e, 30 discharge thus deviates from the turbine generating devices e./pu mixing apparatus, which may be integrated into the flow guidance element in a secondary flow. For this purpose, the flow guiding element can be attached to the associated support discharge tube by means of a. plurality of retaining reinforcements, such that an out ref error is present between the outer wall - the flow guide element and the inner wall 5 of the discharge tube * In this way, the flow guide element is heated by the gas of. hot discharge flowing near exteriors, thereby facilitating a vaporisation of fluid inside the flow guiding element.
    In addition, the turbulence generating device and / or the mezzanine apparatus may be integrated into a flow quenching element, it is / or the injection device can open a flow guidance element. In this way, it can be opposed that a fluid distribution apparatus occupies less space of total construction, in that : namely the flow guide element is disposed overlapping another functional component in the discharge tract.
    According. In another embodiment, the injection nozzle is arranged on the wall of the mouse : discharge. Fluid gases, therefore, are injected close to «a pipe or line wall, that is, on the outer edge of the flow. This type of dispensing nozzle dispensing has been provided, in particular. in apparatus, in which the injection nozzle, is arranged in a curved or angled section of the discharge tract. If the application: requires, o. injection nozzle can also be -di-spb.st.o- in an pxaàa.f space ; It was relatively small from the wall.
    According to an alternative embodiment, the injection nozzle is disposed between it. Regarding a cross section of the discharge tract, the fluids are injected into the center of the flow. This type of central arrangement can also include one. arrangement in the small space tm'edsfinldn a paitii dc center ua Fupert: c; and in sc-ao
    7/19 cross section of the respective line section.
    injection nozzle can be configured to spray fluids in the form of a hollow cone or a solid cone. Injection nozzles with spray characteristics of a hollow cone type are relatively inexpensive and available in a variety of variants. Injection nozzles with spray characteristics of a solid cone, on the contrary, ensure a better degree of mixing of the sprayed fluid in the surrounding gas flow.
    The two injection nozzles positioned against each other can also be provided for spraying fluids in the form of a flat cone. Such a constellation is advantageous, in particular, with an oval cross-section in the respective discharge system section.
    The injection device can be configured to spray fluids with a predefined average droplet size. The average Sauter diameter (SMD) can be used as the parameter for the droplet size. The efficiency of the distribution apparatus can thus be optimized by a direct variation in the droplet size. For this purpose, - as long as the droplet size is known - the required components of the distribution apparatus, as well as the corresponding parameters can be matched to the droplet size. On the contrary, with the predefined components and parameters, a specific ideal droplet size can be selected, in order to thus ensure an operation free of deposition of the distribution apparatus. Depending on the application, the average droplet size of the injection device, therefore, can be an input parameter or an output parameter of the dispensing apparatus to be configured.
    According to another embodiment, the combination of a plurality of individual measures comprises at least
    8/19 a turbulence generating device- & an injection nozzle- of the injection device, - which is centrally arranged - with respect to a cross section of the discharge tract and is configured to spray the fluids in the form of 5 tone solid with a droplet size of no asximc 25 pm average diameter of Santera The name was found. with a central injection having the spray tube of a type of solid cone & droplets. small, relatively ivable® cells, only one turbulence generating device - arranged upstream, or downstream of the injection device - is sufficient to achieve a distribution uniformity of the vaporized fluids in the gas phase. Other expensive components of the diatribution apparatus can therefore be removed.
    Accordingly, another combination of the invention, the combination of a plus of individual measures comprises at least one turbulence generating device which is provided upstream of the injection device, at least one mixing apparatus which. it is provided downstream of the injection device and which comprises at least one tubular vaporizer device, and -oampieènde an injection nozzle of the injection device which is arranged centrally with respect to a cross section of the discharge tract, and is configured to a pui * zaCxsç to .flnidas ..in the form of a cone, it is so large in size. it ranges from a maximum of 25 to 25 pm in average diameter from Sauter ... As long as, as a consequence, a mixing apparatus having at least one tubular vaporizer device is arranged downstream of the injection device - in addition to the turbulence generating device, a simple spray nozzle 30 of a hollow cone type can be used.
    In .acordo with o-UTRA aôncrstização: -the invençâa,: a: combination of a plurality D® medical inu.iviQu.aiS: comprising at least one turbulence generating device that is provided upstream of the injection device by fiéfios a- mixing apparatus which is supplied: downstream. · from the injection device e. which comprises at least one turbulence generating device, and comprises w: injection loop of the injection device which is centrally disliked with respect to a cross section of the discharge tract. and is set up to spray the fluids on. solid cone shape, with a droplet size d: and at least 25 gm average Sauter diameter. In the case of larger droplets, two turbulence generating devices are, therefore,. required for a single distribution - one upstream and one downstream of the · injection device, using an injection nozzle spraying in the form of a complete cone, the appearance of products. · secondary products can be avoided, .15 rjp agreement: with another ooncretiaagab. gives. invention., the combination of a plurality of · individual measurements · comprises at least one turbulence-generating device that is supplied upstream of the injection device, at least- one piece: mixture that is provided downstream : do 2 : The injection device, which comprises at least a turbulence generating device and a tubular vaporizing device and includes an injection nozzle for the injection device which is arranged in the center with respect to a section cross section of the desearoa tract and is configured .for spraying: dos: laughs in the torso: dè c-ohe hollow, so much, with droplets of: at least 2d gm of d.iâmet.rç gives Sauter » In this constellation, ç.gis : devices: turbidity generators: and a steam system:! Tubular user are supplied. In turn, only a single injection nozzle spraying in the form of a hollow cone should be provided.
    According to another embodiment of the invention, the combination of a plurality of individual measurements comprises at least one mixing device which is provided downstream of the injection device, and which comprises. at least one device that generates: turbulence, and comprises a range of: n hand of the injection device 5 which is arranged on the wall of the discharge tract and is configured for a spraying of fluids in the form of solid oone cam. a size of at least 50 µm of Sautern Nc medium diameter in the event of a fluid injection close to the wall, therefore, it is convenient to have a nozzle for larger droplets. In addition, a turbulence generating device must be provided downstream of the injection device »
    According to another embodiment of the invention, the combination of a plurality of individual measurements 15- comprises at least one mixing device- which is provided downstream of the injection device, and which comprises at least one turbulence generating device & one tubular vaporizer device, and comprises one. injection nozzle of the injecting device that is disposed on the wall 20 of the discharge tract and is configured for a spraying of: fluids in the form of a hollow cone, with an o gut.içula size, give at least 50 pm of average diameter Sauter. In one use, an injection nozzle is sprayed in the form: dé cone .oco. and o and an injection close to. wall, ê, by çonsegnanze, convs.n.ierme 25 use a mixing device that is arranged downstream of the. injection device is that it comprises at least one device. · turbulence generator and through the menus a tubular vaporizer device »
    According to the invention, I was taken into consideration. in particular, don't you ' .nacoc »advantageous -Goncretations ,. that the injected gaticulas' vaporize faster, the smaller they are · xotem. · However, smaller droplets are also more difficult to introduce a discharge gas flow, that is, the penetration depth drops as the diameter of the · droplets is reduced or as the pulse of the droplets · is reduced.
    The invention will be described below as an example, with reference to drawings *
    Fig. 1 shows a partially cropped perspective view of a discharge tract section in which it is apparatus according to. the invention for fluid distribution is integrated.
    X $ A »2 shows an alternative embodiment of an apparatus according to the invention for dispensing fluids that is integrated into a flush discharge tract.
    Fig. 3 another embodiment - a device, according to ..the invention for the distribution · of fluids
    XS Figs. 4-8 show other examples of the invention in an equitable manner.
    Fig. 1 shows a section of tube V 1 of a discharge tract through which emissions are to be purified from a mptor. diesel, not shown, flow along a direction and 2Q .A discharge gas flow. An inner tube 12 is arranged in the tube section 11 and is designed as a discharge mixer tube., As will be described more precisely below »The tube section .11 with the inner tube 12 is arranged before an SCR catalyst , also not shown, in the direction of discharge gas flow A. üm trim- '.' 1.3: for the distribution of a fluid, for example ', · a mixture of urea-water, in the discharge gas it is integrated in the inner tube 12: »0 · the apparatus with an injection device 15 having an injection nozzle 17 opening for the inner tube 12. The fluid to be injected is sprayed into the circulating exhaust gas through the injection nozzle 1 / ·. As you can; s®r vastè- a · from fig. 1, d nozzle nozzle 17 is located centrally, with respect to nozzle nozzle 1 /, in section oe
    12/19 tübo li, ie on the central longitudinal axis. I »of the pipe section .11. The injection nozzle 1'7 can be configured depending on the application to propel the fluid in the form of a hollow cone or in the form of a solid cone. In addition, the Injection device 15 including the action nozzle 47, is adapted in such a way that, pm. predefined average droplet size is generated in the spray.
    The apparatus 13 further comprises a first turbulence generating device 19 arranged before the injection device 1.5 in the direction of a cesarean gas flow A f or as a mixing apparatus 20 o.rspoatc only the injection device 15 in the direction of discharge gas flow A. The mixing device 20 comprises a second turbulence generating device 21 and a tubular vaporizer device 23 arranged behind it in the direction of the discharge gas flow ft. 0 the first turbulence generating device 19 and the second turbulence-generating device 21 comprises, in addition, vane oe g «s zt oasposias and configured in the form of turbines. The palms and gels 25 20 extend substantially outward from the central longitudinal axis 1 of the tube section 11, but are flexed over themselves so that their contact line with the tube section 11 is stable. if along a spiral line, a strong 'section block: cross section of the 25 tube section 11 results from this fashion. With flow through the ispcsir.lv, turbulence generators 19, 23, turbulences are generated in the discharge gas flow which helps to mix the fluid with the circulating discharge gas. To further improve the mixing, the gas vanes 25 can be shaped so that there will be a reversal of the turbulence amplifying turbulence direction between the first turbulence generating device 19 and the second turbulence generating device 21.
    13/19 tubular vaporizer device 23 has a central tube 27, as well as external surfaces 29 which are formed in the form of flowers and which. a improves more a. mixture of fluids and discharge gas and, moreover, act as vaporized surfaces and / or as an impact plate in order to promote vaporization.
    The surfaces of the elements 19, 21 and 23 can be structured or perforated to further improve the atomization and distribution of the fluid.
    Depending on the application, a hydrolysis catalyst, not shown, can be supplied, in addition to one. desired position of the pipe section 11 to assist the SCR catalyst, • ps. .descátgà gas flows through the IS dubp section. 1.1 d®. a.còr do-cò: ar a <dixeçãp: o e fux · o the gas of dèscar ga A. during operation, with the turbulence generating devices 19, 21 and The tubular vaporizer device 23 being heated. Exhaust gas exiting tube section 11 enters if my SCR catalyst is hot. I will generate and / or.
    facilitate a reduction of. nitrogen not cut.alis.adox SCR, one. water-urea mixture, for example, is injected into the flask and discharge of the intermediate color of the starting device 15. In the known embodiment, only a single injection nozzle ^ 1..7 is associated with the device: injection 15.
    2S Sm .a.piíoaçde.s specific, The .device of. injection 15, however, I was also able to understand a plurality of injection nozzles 17 »A mixture occurs between the gas. of discharge to the injected tubes: of the mixture of water-urexa due to the turbulences generated in the jet of exhaust gas through the first turbidity generator device 19, (A: mixture: very produced : then · 'W deMoic. comt o discharge gas for the second turbulence generator device 21 in which the discharge gas with the water-urea mixture is
    1/14: 9 placed to a notation on the central longitudinal axis: Lda tube section 11 ,. In this way, another improved mixing of the discharge gas with the water / urea mixture occurs. In addition, the gas blades 25 of the device: turbulence generator 21 üambèm act as a vaporizing surface,
    In the additional extension, the partially vaporized water / olive oil mixture moves with the exhaust gas to the tubular vaporizing device 23 and another mixture of the water-urea mixture with the exhaust gas or the other vaporization occurs. mixture of water-urea on the surfaces vaρo r i z pain to s ca r r and spon: n t es.
    After. s-aida from the section of tube II, the discharge gas moves optionally to another vaporizer tube ,. Any portions / .liquids of the water- / 15 urea mixture possibly still present · can be vaporized here, so that only the gaseous reducer moves to the SCR catalyst> Reducing nitrogen oxides to nitrogen in water occurs in this,
    The fluid distribution apparatus 33, therefore, is divided into a plurality of. functional units that are arranged in one. plurality of stall with respect to. direction of gas flow: discharge A, Which ostaci rer in-o. What is the order in which the stages should be arranged and what spacing should be provided between the stages they are separated by the spatial circum- stances and te: rmod.inã.mzc : the respective, and they can be / deminuted in such a way that particularly a complete view of the injected fluid results inside the inner tube 12, In the art, it naturally strives in this process in general to provide as few functional groups as possible or to provide components that are as small and as low cost as possible. A configuration, therefore, is always desirable, in which a Deposition-free operation is possible using: as few resources as possible, and>
    that is as simple as possible.
    It turned out that, for the central injection or close to the 5 axis shown in fig. 1 and for an internal pipe diameter of 70 µw, only the first turbulence generating device 19 or the second turbulence generating device II selectively is sufficient to achieve a complete and residue-free vaporization, provided that the 5 1Q nozzle tip 17 is configured for spraying the fluid 0and a cone shape · solid, eg Sauter mean diameter of qoriçulas · makes up at most 25 pm, dm one use- an injection nozzle spraying in the form of a cone hollow, it is, however, advantageous to provide both the first turbulence generating device 19 and the tubular vaporizer device .23.
    As long as an injection nozzle: spraying as a solid cone is used and the average Sauter diameter of the droplets is at least 25 gm, it is preferable to make both. first turbulence generating device 19- like o.
    second tarbú generating device 21. As long as, on the contrary, an injection nozzle spraying a hollow cone in the system is used and the Sauter medium droplet of the droplets perfumes at least 25 pm, both the first · turbulence generating device 19 how. the second device: turbulence generator 21, and, adioionaimente ,. the tubular vaporizer device 23, must be provided. All of the constellations described above are quite adequate to achieve a vaponization free of residues from the mixture. If, however, other devices are required, turbulence-generating devices and / or vaperfriendly devices may also be provided.
    Fig. 2 shows an apparatus similar to that shown in fig. 1, which is, however, integrated in a section of
    16/19 angled pipe: 11 'of the discharge tract. The injection well 17 is arranged in the fold region on the wall of the tube section
    11 ',. As in the embodiment according to fig. 1, a first turbulence generating device 19, a second, positive turbulence generator 2.1 and a tubular vaporizer device 23 are provided with one another, viewed in the direction of discharge gas flow. A. It has been found that only the second turbulence generating device 21 is required to achieve a complete vaporization, provided that an injection nozzle spraying in the form of a solid cone is used, and the average Sauter diameter of the droplets makes up at least SO one. As long as, on the contrary, an injection nozzle: zanao in the rome and a hollow cone is used and the average Sauter diameter of the qotíoulas perfects, at least b0 : p ,. both the second turbulence generating device 21 and the tubular vaporizing device 23 should preferably be provided. Both constellations described are quite adequate to achieve vaporization free of residues of the 2d fluid. With a diameter of. enlarged inner tube, for example, an inner tube diameter of 140 mm, it may be convenient to also increase the droplet clog, for example, up to 1Ü.Q · pm, In another aspect, the operation of the apparatus is as in the variant according to fig. 1>
    Fig. 3 shows an apparatus. 1.3 ”according to another invention invention, which is integrated in an 11 cm subscantial tract running in a straight line similar to the discharge path 11 according to. fig. 1. Ò injection device · 15. is, here arranged in an indentation 10: of the discharge tract 11 ”, : give it in such a way that the injection nozzle. 17 sprays b .fluidó forward obliquely no gas flow o® discharge. The injection nozzle 17 in this respect opens onto an inner tube 12 in which a
    17/19 2G mixing turbulence generating apparatus ”is also integrated- As can be seen from the -fig. 3 <. there is an end 33 between the inner tube 12 and the wall of the discharge tract 11 ”/. so gas part of the discharge gas flow 5 flows close to the inner tube © 12 on the outside, which is illustrated by arrows in fig. 3. The portion of the discharge gas flow flowing through the inner tube 12 and the αα portion of the discharge gas flowing around the tube; internal 12 are located downstream of the inner tube 12, Q inner tube l.z 10 tea '! um.- funnel 35 at its downstream end which effects an increase in flow speed deviation- to the Venturi effect * The Inner tube 12 is enhanced by the surrounding voiding and a vaporization of fluid on the surfaces: from the inner tube .1: 2; Θ: the mis-Wra -23 ”apparatus is like this. tacii-i-tado '·. U 15 discharge tract 11 ”has a construction point 37 directly; downstream of the taper; 31- through which the most rapid mixture of exhaust gases ©. © main flow. And the secondary flow can be achieved.
    The 11 ”discharge tract has a section of 22nd dèsaccplamento · 31 that. has a reduced stiffness. with. connection to the preceding and following sections of the flow and discharge gas. 11 ”u f_n to assit the vibration transfer and avoid tension. The decoupling section 31 is designed as a spiral wound wrapped in a 2'5. lined with a corrugated tube; .flexible thin rectal plate. The Interne 12 tube extends along the entire length of the .coupling section. 31, s ends, -only downstream from the uncoupling section íl- The attachment of the inner tube 12 to the discharge tract 11 ”occurs 30 only in the region of rigid components of the tube section 11% is not in the region of the - desàco-plàmènt-ç .flexível ii. In other words, -e inner tube 12 protrudes freely decoupling section 31, so the mobility of gue / 19 discharge outlet tract ll ÍF possible by desaoop section lament 31 is ma-ntida: <When · : same time. ,, the inner tube protects the wall of the deflection section: 31 main flow of the discharge gas and, thus, puts a fluid deposition on the irregular surface of the decoupling section · 31.
    One-indentation, 34 from tub. Internal 12 directs the discharge gas flow directly in the direction that the flow direction is best suited to the injection direction.
    It is optional: the mixing apparatus 20 may comprise other components, such as a plurality of different turbulence generating devices, or a tubular vaporizer device. An arrangement having an inner tube around 12 can also, in general, be combined. the measures described above · to improve mixing. However, it can also be used without these measures,
    Figs. 4 to 8 show other exemplary embodiments of the invention. According to fig. the inner round: 12 WA may form part of a measuring .módulo- 39 containing 20 .dispositive the injection. 15, - well. with a mixing apparatus 20, and may extend only partially to a 3-1 de-coupling section. Fig. 5 shows an embodiment in. where a measurement module 3-9 is located between two sections of. decoupling 31 ,. Since the .2-0 .mixture apparatus is, so to speak, .displayed in the de-coupling section · 31., ·. the required construction space is small in size: ratio · -to a system having components, components, through each other. According to fig. 6, the mixing apparatus 20 associated with the inner tube 12 also rests. standby-O-upstream of the injection device 15, and can act like this in a pure turbulence generator. At the sc '-r ^ o t is fig. 7, a half-shell extension is provided at the downstream end of the inner tube 12 and protects
    19/19
    2.3
    20 '27 .2 9
    3.1
    34
    43 basically the bottom part of the decoupling section 31 of the fluid readings coming out of the mixing device · 20 ”in the use position and vaporizes these droplets * As can be seen from Mg. 8, the mixing apparatus 20 ”can also be provided at the end of a measuring module 39, with an extension tube 4 3. adjacent to the mixing apparatus 20 :, í
    List of reference numbers
    11, 11 ’ IV ’tube section
    O 12 inner tube
    13, '13 *, 13 “apparatus for dispensing a fluid injection device injection nozzle« 19 first onpcsitrvc turbulence generator
    20, 20 '' mixing apparatus according to the turbulence generating device vaporized device tubing gas vane tube outer surface protrusion uncoupling section air gap indentation funnel;
    point of construction measuring module prolongation © in half-doricha shape extension tube flow direction: gas, # f and discharge central longitudinal axis
    权利要求:
    Claims (6)
    [1]
    RSIVI ^ TIPS
    1, .. DEVICE (13, 13 ', 13) FOR MSTRlBUIÇAS' .DE FWIDQS, in particular, one. mixture of water ~ urea or. «Liquid fuel, om- discharge systems of one. engine of
    5. Cm incerna, having an injection device <15), in particular, opening before a so-called SCR catalyst in the discharge tract (11, 11 *, 11 ") - # characterized by a combination of a plurality of individual measurements for achieving · a uniform 1D mixture of fluids with the discharge gas and a complete vaporization of the fluids in the discharge gas, in which the measurements are in v i d u d d ue compendend;
    - · at least a turbulence-generating device · (19) and / or mends · a mixing apparatus (20, 2'0’'L
    li - pref.erencislistically skin minus a catalyst; and
    - an injection nozzle (17) of the injection device (IS) which is arranged in a predetermined spacing from a wall of the discharge tract (.11, 1.1 ’,. 11).
    [2]
    2, DEVICE, according to claim 1,
    20 characterized by at least one. turbulence generating device (19) is provided, which comprises a plurality of gas tank (25) arranged in the form of a turbine.
    [3]
    3, DEVICE, according to claim 1 or claim 2 S. characterized by a mixing apparatus (201 is provided, which comprises at least a .dTspPsitivo. turbulence generator (21) and a tubular vaporizer device (23).. · ·.. ..:, .. ·. ..:. Τ '(i
    t. DEVICE, according to any one of the claims 1 to 3, characterized by a catalyst of 'hítírdlise · be · Ιοόήόοίαο, ó : which is available, in. upstream of a so-called SCR catalyst.
    5. DEVICE, according to any of the
    276 claims 1 to 4, characterized in that a flow gauge element (121) is provided, which is arranged within the discharge tract (11 ”) and is spaced at least separately from On the wall. deal with
    5 discharge fll) and α which protrudes at least, at least partially, from a flexible uncoupling section (31) of the discharge tract (11). with the flow guide element (12) ending, in particular, in one. downstream region of. decoupling section · (.31),
    DEVICE, according to claim 5, characterized in that the injection device (15) is arranged upstream of the flexible uncoupling section (31) of the discharge tract.
    7, DEVICE, according to any of the
    15 claims 5 or €, characterized in that the flow guide element (12) is configured - as ice less sectionally coaxial to the discharge tract (1Γ ').
    8. DEVICE, according to any one of: claims 5 a. 1, characterized by the
    21 flow guiding (12) has a section of prprongongentent per ifericam.ente interrupted, in particular, of the half-shell type (41) 7 is its downstream end.
    , 9. DEVICE, according to any one of claims 5 to 3, characterized in that the element of 25 flow rate (12) is securely cooled, viewed in the direction of flow of the exhaust gas (A).
    10. DEVICE, according to: any of the claims 5 ã: 9, carauterizad © by the elements of flow guide: 12) integrated in the discharge tract
    30 Ui), give such. I ordered it to be drained around the flushing pans outside,
    11. DEVICE, according to any one of claims 1 to 10, characterized in that the turbulence generating device (19) and / or the mixing apparatus (20) is integrated in a flow guide element (12)
    and / or where the injection device (15) opens to a flow guide element (12).
    12. DEVICE, according to any one of claims 1 to 11, characterized in that the injection nozzle (17) is fitted to the wall of the discharge valve (11 ').
    13. DEVICE, according to any one of claims 1 to 1.1, characterized by ροζ the injection nozzle
    10 (17) be arranged centrally with respect to a cross-section of the discharge tract (11).
    14. DEVICE, according to any one of claims 1 to 13, characterized in that the initiation nozzle (17) is arranged in an angled section of the .15 gas flow (11 ').
    15. pTSPOSITlVQj agree with: .any one. of claims 1 a. 14, characterized in that the injection nozzle (17.) is configured to spray the fluids' in the form. of a hollow cone or solid cone :.
    16. DEVICE, according to any one of claims 1 to 15, characterized by two positioned injection nozzles. one against the other being rounded to spray fluids in the form of a none piano17. DEVICE, in accordance with any of the
    25 claims 1 to 16, characterized in that the injection device (15) for spraying the: fluids is configured with a pre-defined average gum size,
    18., DISPÔSITIVó, according to. any of the • claims 1 to 17., characterize the use of the action ue ®iia 3.0: ^ plurality of measures: Individual understand :;
    - at least one turbulence-generating device (19, 21); and
    - an injection nozzle (17) of the injection device
    [4]
    4/6 (15), which is centrally arranged with respect to a cross section of the discharge tract (11) ® is configured for the spraying of fluids in the form of a solid cone, with a droplet size of at most 25 pm ae
    S average diameter of Sauter,
    19, DEVICE, according to any one of claims 1 to 18, characterized in that the : combination : of a plurality of individual measures comprises at least one 'turbulence generator device 10 (15) which is provided upstream of the arrangement> 1.1 injection vo
    /.15) ;.
    ~ by rer- ^ an αρίατο ca ο..a. ·>
    provided · downstream of the injection device (15.) and comprising at least one tubular vaporxzaqor device 15 (23); e; '1 ~> cc ns / cub z of nqçlc (15) cue is available centrally with respect to : -a cross section of the discharge tract (111 and is conti.gurao.c for spraying- of fluids in the form of a hollow cone:, · with s' 20 droplet size of maximum 25 pm.
    Sautèr.
    20. DEVICE, according to any one of claims 1 to 1.9, characterized in that the combination of a plurality of individual doctors comprises:
    25 - at least one turbulence-generating device (191 which is provided upstream of the injection device (15);
    - by monos a mixing apparatus (20} which is supplied downstream from daspos.i.trvo dè xnjeçso ü3; and gué
    30 ccmpxendende skin minus a device that uses lurbulencua (21) e
    - an injection nozzle (1'7) of the injection device (15) which is centrally arranged in relation to a cross section of the load tract (11) and is configured for the spraying of the fluid in the form of a solid cone , with a droplet size of a maximum 25 mm of average diameter of
    Sauter,
    [5]
    21. pISPQSIfXVO according to any one of claims 1 to 20, characterized in that the combination of a plurality of individual measures comprises at least one. turbulence generating device (IS) which is supplied upstream of the injection device 10 4101
    - at least one mixing apparatus (20) · which is provided downstream of the injection device (15) and which comprises at least one turbulence generating device (21) and a tubular vaping device (23); e- mg - an injection nozzle (17) of the xngeçaç device (1.5) which is centrally arranged with respect to a cross section of the discharge tract (11) and is configured for the spraying of fluids in the form of a hollow cone , with a droplet size of at most 25 pm in average diameter of 22 -Sá uteri
    22. DísmsXTIVO, according to: com. any of claims 1 to 21 »characterized in that the combination of a plurality of individual measures comprises:
    - at least one mixing apparatus. (20) which is supplied downstream of the injection device (15) and which comprises at least one turbulence generating device (21); and
    - an injection nozzle (17) of the injection device (IS) which is also arranged on the wall of the discharge tract (11 *) and
    30 is configured for spraying fluids in the form of a solid cone, with a size of at least 50 µm of Sauter average diameter.
    23. DI.S2OSIXIVQ, according to any of the
    [6]
    6/6 claims 1 to 22, characterized by the combination of a plurality of measures. comprises:
    ~ at least. a mixing apparatus .: (20) which is supplied downstream of the injection device (15) and which
    5 includes at least one turbulence generating device and a tubular vaporizer device (23); ©
    - an injection nozzle {17} of the device; injection (15.) which is arranged in the wall of the discharge tract (IV) and is configured for the spraying of fluids in the form of a hollow cone, with a droplet size of at least 5Q of average Sauter diameter.
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    同族专利:
    公开号 | 公开日
    WO2012089290A1|2012-07-05|
    TR201808705T4|2018-07-23|
    US20140033686A1|2014-02-06|
    US9453444B2|2016-09-27|
    CN103429864A|2013-12-04|
    EP2659101A1|2013-11-06|
    EP2957740B1|2018-06-06|
    EP2957740A1|2015-12-23|
    RU2013135256A|2015-02-10|
    DE102010056314A1|2012-06-28|
    EP2659101B1|2015-08-19|
    RU2590174C2|2016-07-10|
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    法律状态:
    2020-01-14| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-04-07| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-11-03| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-03-02| B11B| Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements|
    2021-10-13| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102010056314A|DE102010056314A1|2010-12-27|2010-12-27|Device for distributing fluids in exhaust systems|
    PCT/EP2011/005438|WO2012089290A1|2010-12-27|2011-10-27|Device for distributing fluids in exhaust systems|
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