EP3491230A1 - Siebdichtung und verfahren zu deren betrieb - Google Patents
Siebdichtung und verfahren zu deren betriebInfo
- Publication number
- EP3491230A1 EP3491230A1 EP17754092.9A EP17754092A EP3491230A1 EP 3491230 A1 EP3491230 A1 EP 3491230A1 EP 17754092 A EP17754092 A EP 17754092A EP 3491230 A1 EP3491230 A1 EP 3491230A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- screen body
- screen
- sieve
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 239000004071 soot Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 15
- 239000011324 bead Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 230000003197 catalytic effect Effects 0.000 claims description 7
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- 239000012530 fluid Substances 0.000 claims description 6
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- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001527806 Iti Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/82—Chemical processes for the removal of the retained particles, e.g. by burning with catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
- F01N5/025—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat the device being thermoelectric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/12—Metallic wire mesh fabric or knitting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
- F01N2510/065—Surface coverings for exhaust purification, e.g. catalytic reaction for reducing soot ignition temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0414—Methods of control or diagnosing using a state observer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/029—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
Definitions
- a screen seal is provided as protection at a ent ⁇ speaking branch of the exhaust line.
- Such sieve seals have proven themselves in exhaust gas recirculation or short EGR lines.
- a filter in the form of a sieve part or sieve body at a loading ⁇ operation under exposure to very hot exhaust gases in an EGR line already in temperature ranges below 600 ° C. can soak up soot and deposits. This process can lead to a significant increase in backpressure and, ultimately, even failure of a particular EGR path by blockage of the filter.
- Such situ ⁇ ation may occur in a low-pressure EGR branch in particular.
- a component failure or damage to the filter element itself performs this pre ⁇ transition to a performance degradation of the driving combustion ⁇ combustion engine.
- the present invention has the object to remedy this situation in the form of a sieve seal and a method for permanent Be ⁇ drive a sieve seal of this type.
- the filter element comprises at least one heating wire. According ⁇ deposits are heated to the extent that these areas are burned, comparable to a light bulb effect.
- a heating wire is woven as a heating element in the metal fabric or is applied separately, in particular at a small distance from the metal fabric of the screen member.
- a plurality of heating ⁇ wires are provided in and / or on the screen body. It can be used separately here selec ⁇ tive weft or warp threads ⁇ by a corresponding electrical interconnection. In this case, heating wires usually differ from other wires or a material of Siebkör ⁇ pers by their electrical resistance.
- the screen body or an entire woven fabric, mesh or knitted fabric is flowed through at least in the region of a current path of current and used as a thermally effective heating fabric, wherein in one embodiment of the invention, at least in Be ⁇ rich a fixation in the seal an insulation for preventing ⁇ an electrical short circuit is provided. Due to the structure of the screen body from the electric ⁇ formation of a narrow path for the electrical current when He ⁇ warming and numerous contact points within the streamed through ⁇ material of the screen body is unlikely. However, a region heated by current flow should, as far as possible , cover areas which are particularly affected by deposits.
- a current flow via a tap of the screen part using the gasket layer as a second pole or ground potential is embossed ⁇ .
- This embodiment shows the particular advantage ei ⁇ ner largest current density in the area where accumulate usually the strongest deposits and, accordingly, a maximum burn-off is carried out.
- a method for permanently operating a screen seal according to the vorste ⁇ existing embodiments is proposed, which is characterized in ⁇ net, that a current flow through at least a portion of the Sieb ⁇ body is maintained over a period of time
- a temperature threshold of about 600 ° C
- the ge ⁇ called threshold temperature can be lowered to approximately 450- 550 ° C ⁇ the.
- a method for controlling the current flow through a sieve seal constructed according to the invention using the teaching of the non-prepublished patent application DE 10 2015 110 977.8 is given, the contents of which is incorporated by this reference in the disclosure of this patent application.
- ⁇ at a blockage based on a strong temperature gradient is detected using a TEG in the region of the strainer portion or in or on the wire part. This sensor signal from the TEG is now used to control the current flow through the screen part.
- a catalytic coating at least in Tei ⁇ len of the screen body even a reduction of said Tem ⁇ peraturschwelle to about 350 - 500 ° C reached.
- a catalytic coating of the type mentioned reference is made in full to the disclosure of the German patent application DE 10 2016 114 916.0, which disclosed a wet-chemically applied coating of an alkali and / or alkaline earth alloy with exemplary embodiments for the stated purpose.
- a path is taken, for example, the teaching of DE 10 2013 212 733 AI runs opposite.
- upstream is arrange ⁇ th particulate filter not targeted increase an exhaust Tempe ⁇ temperature to more than 600 ° C with appropriate crizungsvor ⁇ transitions caused.
- ge ⁇ it is that, in particular guide branch significantly lower in a low-pressure exhaust-gas operating temperatures Ver ⁇ burning carbonaceous deposits by a specific catalytic coating of the screen body is effected.
- Ver ⁇ burning carbonaceous deposits by a specific catalytic coating of the screen body is effected.
- ⁇ required thermal energy is so significantly reduced, so ⁇ a thermal reaction safely and automatically gestar ⁇ tet, and then independently run to a maximum elimination of deposits on the screen body.
- a catalytically active coating of the screen body or screen body is thus achieved that no additional thermal energy, for example by heating an upstream particulate filter, introduced into this screen body ⁇ who must to cause elimination of soot particles.
- the catalytic coating is based on alkali and / or alkaline earth alloys and has a high abrasion resistance with high efficiency in the catalytic conversion of organic solids with a combustion ⁇ activity below about 400 ° C.
- suitable catalytically ⁇ table acting substances as well as coating methods to the disclosures of EP 2134795 Bl and EP 393 948 Bl, reference is made in full to 2 here.
- a regeneration or a burn-up of the screen body on at ⁇ collected soot by supplying electrical energy by way of advantageous ⁇ enough, at any desired time can be accomplished by a device according to the invention.
- this process is therefore no longer limited in particular to fast highway driving with correspondingly high exhaust gas temperatures.
- Figure 1 a sectional view of a firstUEsbei ⁇ game using a known screen seal
- Figure 2 a plan view of a known screen seal according to
- FIG. 1 A first figure.
- FIG. 3 shows a further plan view of a known Siebdich ⁇ processing of Figure 1;
- FIG. 4a shows a detail of a sectional view of a white ⁇ more advanced embodiment, adapting a known filter seal and be ⁇
- FIG. 4b a top view of the detail of FIG. 4a.
- FIG. 1 shows a section of a non-white ⁇ ter illustrated exhaust gas recirculation in an exhaust train of a motor vehicle.
- a screen seal 1 in a plane D to provide a sealing function between a first flange 2 and a second flange 3 is provided, see WO 2015 014992 AI details.
- the screen seal 1 has a screen body 4 only indicated here with a three-dimensional design not described in detail below and is flowed along an arrow F by a fluid or exhaust gas through ⁇ .
- the screen body 4 is fixed in the region of the sealing function with a seal 5 that gases can occur over a full free cross-sectional area A of connecting to the flange 3 ⁇ pipe 6 through the screen body 4 through.
- the fixing of the screen body 4 on the seal 5 is in accordance with the disclosure of the European patent application with the application number EP 13178968.7 ⁇ for example, by a convolution instead, is formed by an annularly closed bead. 7
- the screen body 4 comprises a fabric or braid of metal wires.
- a radial recess 8 is provided on the first flange 2 in the embodiment of FIG.
- This recess 8 is dimensioned for receiving the bead 7 so that when fixing the flanges 2, 3 by recesses 9 thereby the seal 5 experiences a full-surface compression and a sealing effect is not exclusively based on a fixation of the bead 7 between the flanges 2, 3.
- a screen seal 1 of the type described above has as protection against entry of particles in combustion chambers of a not shown in an exhaust ⁇ recirculation branch or an EGR line of Brennkraftmaschi ⁇ NEN proven. Nevertheless, it has been determined that screen body furring for operation with waste gas streams at temperatures ranging un ⁇ ter about 600 ° C in the EGR line by soot formation and storage ⁇ requirements. This process can lead to a significant increase to ⁇ a gas back pressure and even ultimately lead to a failure of a respective EGR route.
- the opposite the screen body 4 are electrically completely iso ⁇ profiled sealing sheet 5 forms towards a second pole 12 and a ground potential to the flanges 2, 3 in an electrically non-iso lating ⁇ coated area.
- FIG. 2 illustrates a top view of a design of a well ⁇ th filter seal 1 according to FIG. 1 where a feed line 10 is provided which is electrically accessible from the outside and electrically conductively against ⁇ electrically insulated across the seal 5 by partial coating as well as with the screen body 4 verbun ⁇ is the.
- This supply line 10 is on the screen body 4 opposite and also electrically conductive with this ver ⁇ connected a second pole 12 is provided.
- a second pole 12 is provided in the screen body 4, for example, separated weft or warp threads are selectively used by a corresponding electrical interconnection depending on the material used and type of sieve formation.
- a current flow can be selectively directed in a preferred direction, namely to an opposite second pole 12.
- the said temperature threshold is at said Tempe ⁇ raturwert, if not by the addition of additives in the form of a urea injection into the exhaust line to about 450 - 550 ° C or by the use of a catalytic coating at least parts of the screen body 4 to ca 350 ° C to 500 ° C can be lowered.
- a nassche by immersion coating part of the screen body 4 ⁇ mixture produced is indicated by way of example in a range B in FIG.
- the area B may be small, a coating omissions with ⁇ dig and a small amount of the catalyst will precipitate.
- the Minim B ⁇ least applied in the region as part of the coating on the material of the screen body 4 by wet chemical, pre-dried and finally be ⁇ burned. This step can be done by printing, spraying, dipping or dipping before, but also after the shaping screen body 4. Even a finished Siebdich ⁇ tion can be retrofitted accordingly with a catalytically effective sectionbe ⁇ coating.
- FIG 3 shows a plan view of a furtherandsbei ⁇ game using the figures of Figures 1 and 2 known filter seal 1.
- a sensor element 14 is arranged in the region of the free cross-sectional area A.
- a strip or rag 15th made of metallic sheet metal, which serves as a protruding into the free cross- sectional area A strip as a holder for the sensor element 14.
- the sensor element 14 is designed as a thermoelectric generator, TEG for short. It has been obser ⁇ tet that a temperature difference between both outer surfaces of the screen body 4 occurs in progressive clogging of the Siebkör ⁇ pers. 4 By means of this temperature difference, the TEG generates a voltage as a sensor output signal S.
- sensor output signal S is therefore indirectly clogging of the screen body 4 bar ⁇ bar.
- this sensor output S can also be a time or a period of time
- a temperature of at least 600 ° C in the event that soot particles must be eliminated by oxidation of the screen body 4.
- the outer terminal 17 is electrically connected via the power 10 with the metallic sheet 15, which in turn is connected to the strainer 4.
- the metallic sheet 15 approximately opposite can in turn not shown in more detail Darge ⁇ imputed a second pole 12 as a non-electrically insulating coated area of the bead 7 before ⁇ seen, which is connected via the flanges 2, 3 electrically grounded or earth , Once again, this results in a current path 13 passing through the screen body 4.
- FIG. 4a finally illustrates a section of a Thomasdar ⁇ position of a further embodiment with adjustment of the above filter seal 1-described known.
- a guard ring 18 is provided, which still covers the Ma ⁇ material of the screen 4.
- the guard ring 18 is also integrated into the bead 7 via folding of the materials of the screen body 4 and the seal 5.
- the guard ring a piece 18 extends far into the free cross-sectional area A.
- FIG. 4b shows a top view of the detail of FIG. 4a to show a possible shape of a figure
- Guard ring 18 with a free arm 19 which is electrically connected in the region 21 of the bead 7 with the underlying screen body 4 in the course of folding.
- a current flow I can be impressed between the two poles.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016114006.6A DE102016114006A1 (de) | 2016-07-29 | 2016-07-29 | Siebdichtung und Verfahren zu deren Betrieb |
DE102016114916.0A DE102016114916A1 (de) | 2016-08-11 | 2016-08-11 | Siebkörper und Verfahren zu dessen Herstellung und Verwendung |
PCT/EP2017/069175 WO2018020001A1 (de) | 2016-07-29 | 2017-07-28 | Siebdichtung und verfahren zu deren betrieb |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3491230A1 true EP3491230A1 (de) | 2019-06-05 |
Family
ID=59649662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17754092.9A Withdrawn EP3491230A1 (de) | 2016-07-29 | 2017-07-28 | Siebdichtung und verfahren zu deren betrieb |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190264640A1 (de) |
EP (1) | EP3491230A1 (de) |
KR (1) | KR20190034619A (de) |
CN (1) | CN109563792A (de) |
WO (1) | WO2018020001A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210146591A (ko) | 2020-05-27 | 2021-12-06 | 현대자동차주식회사 | Egr 쿨러용 em 필터 |
Family Cites Families (24)
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US3294073A (en) * | 1964-05-06 | 1966-12-27 | Irwin I Lubowe | Attachment for internal combustion engines for reducing noxious gases in the exhaust |
US4384563A (en) * | 1981-06-26 | 1983-05-24 | Gte Products Corporation | Apparatus for redirection of fuel-air mixture in carburetion system |
US5027781A (en) * | 1990-03-28 | 1991-07-02 | Lewis Calvin C | EGR valve carbon control screen and gasket |
SE519922C2 (sv) * | 1998-12-07 | 2003-04-29 | Stt Emtec Ab | Anordning och förfarande för avgasrening samt användning av anordningen |
DE20013534U1 (de) * | 2000-08-07 | 2000-10-12 | Mann & Hummel Filter | Vorrichtung zur Rückführung von Gas an einem Verbrennungsmotor |
US20060021335A1 (en) * | 2004-07-29 | 2006-02-02 | Caterpillar, Inc. | Exhaust treatment system having particulate filters |
CN101881204B (zh) * | 2002-07-25 | 2012-08-08 | 里法特·A·卡梅尔 | 用来减少柴油机废气的污染物的方法 |
US7121081B2 (en) * | 2003-11-26 | 2006-10-17 | Gsi Engine Management Group | Exhaust gas recirculation afterburner |
DE202006004489U1 (de) * | 2005-05-21 | 2006-06-01 | Elringklinger Ag | Dichtung |
DE102007034633A1 (de) | 2007-04-05 | 2009-01-29 | Nano-X Gmbh | Beschichtungsmaterial mit einer katalytischen Aktivität und Verwendung des Beschichtungsmaterials |
CN201184229Y (zh) * | 2008-04-11 | 2009-01-21 | 山东理工大学 | 柴油车排气微粒过滤装置 |
JP2010169013A (ja) * | 2009-01-23 | 2010-08-05 | Toyota Motor Corp | 内燃機関のegr装置 |
DE102009008144A1 (de) | 2009-02-09 | 2010-08-19 | Nano-X Gmbh | Verfahren zur Herstellung von Alkali- und Erdalkalilegierungen und Verwendung der Alkali- und Erdalkalilegierungen |
CN201846286U (zh) * | 2010-05-28 | 2011-05-25 | 王峰 | 低温烟气温差发电装置 |
US9551248B2 (en) * | 2012-07-17 | 2017-01-24 | GM Global Technology Operations LLC | Method and apparatus to recover exhaust gas recirculation coolers |
DE102013213103A1 (de) * | 2012-07-17 | 2014-01-23 | GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) | Abgasrückführungskühler mit einem erhitzten Filter |
DE102013211509A1 (de) * | 2013-06-19 | 2014-12-24 | Behr Gmbh & Co. Kg | Verfahren und Vorrichtung zur Behandlung von Abgaskondensaten eines Verbrennungsmotors |
DE102013212733A1 (de) | 2013-06-28 | 2014-12-31 | Volkswagen Ag | Verfahren zur Regeneration eines mit Feststoffen verunreinigten Filterelements einer Abgasanlage und Abgasanlage |
DE102013214629A1 (de) * | 2013-07-26 | 2015-01-29 | Robert Bosch Gmbh | Filtereinrichtung mit einer Signaleinrichtung und einer Signalübergabe |
CN105473909A (zh) | 2013-08-01 | 2016-04-06 | 爱尔铃克铃尔股份公司 | 具有筛插入件的egr密封件以及制造方法 |
WO2015038111A1 (en) * | 2013-09-11 | 2015-03-19 | International Engine Intellectual Property Company, Llc | Thermal screen for an egr cooler |
JP5991336B2 (ja) * | 2014-03-18 | 2016-09-14 | トヨタ自動車株式会社 | ハイブリッド車両およびその制御方法 |
DE102014105803A1 (de) * | 2014-04-24 | 2015-10-29 | Elringklinger Ag | Verfahren zum Herstellen eines Funktionselements und Funktionselement |
DE102015110977A1 (de) | 2015-07-07 | 2017-01-12 | Elringklinger Ag | Sensorvorrichtung |
-
2017
- 2017-07-28 US US16/320,315 patent/US20190264640A1/en not_active Abandoned
- 2017-07-28 EP EP17754092.9A patent/EP3491230A1/de not_active Withdrawn
- 2017-07-28 CN CN201780046986.8A patent/CN109563792A/zh active Pending
- 2017-07-28 WO PCT/EP2017/069175 patent/WO2018020001A1/de unknown
- 2017-07-28 KR KR1020197005976A patent/KR20190034619A/ko unknown
Also Published As
Publication number | Publication date |
---|---|
CN109563792A (zh) | 2019-04-02 |
WO2018020001A1 (de) | 2018-02-01 |
KR20190034619A (ko) | 2019-04-02 |
US20190264640A1 (en) | 2019-08-29 |
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