SE533875C2 - Particle filter cleaning device - Google Patents
Particle filter cleaning device Download PDFInfo
- Publication number
- SE533875C2 SE533875C2 SE0801033A SE0801033A SE533875C2 SE 533875 C2 SE533875 C2 SE 533875C2 SE 0801033 A SE0801033 A SE 0801033A SE 0801033 A SE0801033 A SE 0801033A SE 533875 C2 SE533875 C2 SE 533875C2
- Authority
- SE
- Sweden
- Prior art keywords
- filters
- air
- combustion
- filter
- enclosure
- Prior art date
Links
- 239000002245 particle Substances 0.000 title claims description 27
- 238000004140 cleaning Methods 0.000 title claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 26
- 238000002485 combustion reaction Methods 0.000 claims description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 13
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000009736 wetting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 241000257303 Hymenoptera Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
- B01D41/04—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of rigid self-supporting filtering material
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- B01D46/0063—
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- 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
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- 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
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- 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
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- 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
-
- 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
- F01N3/0233—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 periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
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- 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
- F01N3/0234—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 heat exchange means in the exhaust line
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- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
25 30 533 875 En metod och ett system har tagits fram av sökanden för föreliggande uppfinning, vilken är beskriven i patentansökan nr PCT/ SE2008 / 050082. Denna mycket effektiva metod innefattar uppvärmning av ett partikelfilter samt tillförsel av syre för att med förbränning avlägsna sot i de igensatta filtren. Metoden har rönt mycket intresse inom fordonsindustrin, där rekonditíonering är en stadigt ökande sektor. 533 875 A method and system have been developed by the applicant for the present invention, which is described in patent application No. PCT / SE2008 / 050082. This very efficient method comprises heating a particle filter and supplying oxygen to remove soot by combustion in the clogged filters. The method has attracted a lot of interest in the automotive industry, where reconditioning is a steadily growing sector.
KORT BESKRIVNING AV UPPFINNINGEN För att möta efterfrågan pä rekonditionerade partikelfilter har föreliggande uppfinning utvecklats, och i synnerhet att på ett mer automatiserat och storskaligt sätt rengöra igensatta partikelfilter.BRIEF DESCRIPTION OF THE INVENTION In order to meet the demand for reconditioned particulate filters, the present invention has been developed, and in particular to clean clogged particulate filters in a more automated and large-scale manner.
Föreliggande uppfinning kännetecknas av särdragen i de oberoende patentkraven. Företrädesvisa utföringsformer av uppfinningen kännetecknas av underkraven.The present invention is characterized by the features of the independent claims. Preferred embodiments of the invention are characterized by the subclaims.
Enligt en huvudaspekt av uppfinningen kännetecknas den av en anordning för rengöring av partikelfilter, innefattande en inneslutning i vilken åtminstone ett antal partikelfilter kan placeras, uppvårmningsorgan för uppvärmning av inneslutning, organ för lufttillförsel in i partikelfiltren som skall renas, värrneväxlingsorgan anordnat i nämnda inneslutning för uppvärmning av luften som tillförs partikelfiltren, vilken luft utnyttjas för förbränning av partiklar i filtren.According to a main aspect of the invention, it is characterized by a device for cleaning particle filters, comprising an enclosure in which at least a number of particles can be placed, heating means for heating the enclosure, means for supplying air into the particle filters to be cleaned, heat exchange means of the air supplied to the particle filters, which air is used for combustion of particles in the filters.
Enligt en annan aspekt av uppfinningen innefattar lufttillförselorganet en luftrörsledning, att värmeväxlingsorganet innefattar ett antal slingor av luftrörsledning, vilka slingor är anordnade i inneslutningen.According to another aspect of the invention, the air supply means comprises an air duct, that the heat exchange means comprises a number of loops of air duct, which loops are arranged in the enclosure.
Enligt ännu en aspekt av uppfinningen innefattar lufttillförselorganet vidare en tryckluftskälla samt organ för reglering av luften till filtren. 10 15 20 25 30 533 875 Enligt ytterligare en aspekt av uppfinningen innefattar den vidare temperaturgivare för respektive filter, för avkänning av temperaturen inuti filtren under förbränning.According to yet another aspect of the invention, the air supply means further comprises a source of compressed air as well as means for regulating the air to the filters. According to a further aspect of the invention, it further comprises temperature sensors for the respective filters, for sensing the temperature inside the filters during combustion.
Enligt ännu en aspekt av uppfinningen används data från temperaturgivaren för reglering av luftniängden till filtret för reglering av förbränningen.According to yet another aspect of the invention, data from the temperature sensor is used to control the amount of air to the filter for controlling the combustion.
Enligt en annan aspekt av uppfinningen innefattar den vidare en källa med koldioxid, anslutningar mellan koldioxidkällan och respektive partikelfilter samt regleringsorgan för reglering av tillförsel av koldioxid till filtren för reglering av förbränningen.According to another aspect of the invention, it further comprises a source of carbon dioxide, connections between the carbon dioxide source and the respective particulate filter, and control means for regulating the supply of carbon dioxide to the filters for regulating the combustion.
Fördelarna med föreliggande uppfinning är flera. Tack vare att värmeväxlingsorgan är anordnade inuti den uppvärmda inneslutningen, där luft till förbränningen av sot och andra partiklar i filtren passerar genom värmeväxlingsorganet, erhålles en uppvärmning av luften på ett mycket enkelt men ändock tillförlitligt sätt. Ingen komplicerad utrustning eller komponenter krävs inne i ugnen.The advantages of the present invention are several. Thanks to the fact that heat exchange means are arranged inside the heated enclosure, where air for the combustion of soot and other particles in the filters passes through the heat exchange means, a heating of the air is obtained in a very simple but still reliable manner. No complicated equipment or components are required inside the oven.
Genom att varje filter är anslutet till en egen lufttillförselslinga, samt att denna är anordnad med flödesreglerande organ kan luftmängden styra individuellt till varje filter, vilket är en fördel då alla filter uppför sig något olika vid förbränning. När dessutom varje filter är anordnat med en temperaturgivare söm övervakar temperaturen vid förbränning kan lufttillförseln styras på ett mycket tillförlitligt sätt, varvid för höga temperaturer kan undvikas, vilka annars skulle riskera att skada filtren.Because each filter is connected to its own air supply loop, and this is arranged with flow regulating means, the air volume can be controlled individually for each filter, which is an advantage as all filters behave slightly differently during combustion. In addition, when each filter is provided with a temperature sensor which monitors the temperature during combustion, the air supply can be controlled in a very reliable manner, whereby too high temperatures can be avoided, which would otherwise risk damaging the filters.
Om dock temperaturen skulle riskera att närma sig kritiska nivåer trots strypning av lufttillförseln är det möjligt att med' 'anordningen tillföra koldioxid för att dämpa förbränningen och därmed sänka temperaturen. 10 15 20 25 30 533 875 Företrädesvis âr anordnad med ett styrsystem som automatiskt hanterar förbränningen av alla filter i ugnen med hjälp av givare samt reglerorgan för tillförsel av luft eller koldioxid. .However, if the temperature should risk approaching critical levels despite restriction of the air supply, it is possible with the device to supply carbon dioxide to dampen the combustion and thereby lower the temperature. 10 15 20 25 30 533 875 Preferably is provided with a control system which automatically handles the combustion of all filters in the furnace by means of sensors and control means for supplying air or carbon dioxide. .
Dessa och andra aspekter på samt fördelar med föreliggande uppfinning kommer at framgå av den efterföljande detaljerade beskrivningen av uppfinning samt av de bifogade ritningsfigurerna.These and other aspects and advantages of the present invention will become apparent from the following detailed description of the invention and from the accompanying drawing figures.
KORT BESKRIVNING AV RITNINGSFIGURER I den efterföljande detaljerade beskrivningen av uppfinningen kommer hänvisning att göras till ritningsfigur 1 vilken schematiskt visar ett system för rengöring av partikelfilter där föreliggande uppfmning ingår.BRIEF DESCRIPTION OF THE DRAWINGS In the following detailed description of the invention, reference will be made to Figure 1 which schematically shows a particle filter cleaning system incorporating the present invention.
DETALJERAD BESKRIVNING AV UPPFINNINGEN Figur l visar schematiskt ett system för rengöring av partikelfilter.DETAILED DESCRIPTION OF THE INVENTION Figure 1 schematically shows a particle filter cleaning system.
Systemet innefattar en inneslutning 10 anordnad med en uppvårmningsenhet 12, såsom en vârmeugn, i vilken ett antal partikelñlter 14 kan placeras. Systemet innefattar vidare en krets 16 för tillförsel av luft eller syre till varje filter. Kretsen âr kopplad till en tryckluftskâlla 18 såsom en tryckluftspump eller ett tryckkärl. Kretsen grenas till vardera filtret. Varje gren 20 innefattar en ställventil 22 för reglering av luften till filtret samt en flödesmåtare 24. Inuti ugnen år varje gren utformad som en slinga 26 med ett antal meters längd, vars funktion kommer att beskrivas nedan.The system comprises an enclosure 10 provided with a heating unit 12, such as a heating furnace, in which a number of particle filters 14 can be placed. The system further includes a circuit 16 for supplying air or oxygen to each filter. The circuit is connected to a compressed air source 18 such as a compressed air pump or a pressure vessel. The circuit is branched to each filter. Each branch 20 comprises a set valve 22 for regulating the air to the filter and a flow meter 24. Inside the furnace, each branch is designed as a loop 26 with a number of meters in length, the function of which will be described below.
Varje partikelfilter år vidare anordnad med en temperaturgivare 28 placerad inuti filtret. Dessutom år en trycksatt behållare 30 anordnad, vilken innehåller koldioxid. Koldioxidbehållaren år ansluten till en krets 32. Kretsen innehåller ett antal förgreningar 34 där varje gren är anordnad med en reglerventil 36. Varje gren är ansluten till grenen 20 för luften nedströms dess reglerventil 22. 10 15 20 25 30 533 875 Systemet år tänkt att fungera enligt följande. Partikelfiltren 14 som skall rengöras placeras i ugnen. Varje partikelfilter ansluts till en rörslinga 20 och temperaturgivaren 28 placeras inuti respektive partikelfilter. Därefter värms ugnen med uppvårmningsenheten upp till lämplig temperatur, som kan vara i området 450 - 600 °C beroende på filtertyp. Sedan öppnas reglerventilerna 22 för luften så att luft strömmar genom varje gren 20 och varje slinga 26. Luften i slingan kommer att värmas upp till samma temperatur som ugnen när den sedan förs in i partikelfiltret. Luften i filtret medför att förbränning sker varvid partiklar i filtret bränns bort. Låmpligen är luftflödet i slingan fram nu fiinei iåg: så nn inte förbränningen bin så häftig nu temperaturen höjs för mycket i filtret, vilket annars skulle kunna skada filtret. Flödet mäts av flödesmåtaren 24 och 'regleras av reglerventílen 22. Dessutom mäter temperaturgivaren 28 kontinuerligt temperaturen så att denna inte blir för hög.Each particle filter is further provided with a temperature sensor 28 located inside the filter. In addition, a pressurized container 30 is provided, which contains carbon dioxide. The carbon dioxide container is connected to a circuit 32. The circuit contains a number of branches 34 where each branch is arranged with a control valve 36. Each branch is connected to the branch 20 for the air downstream of its control valve 22. 10 15 20 25 30 533 875 The system is intended to operate as follows. The particle filter 14 to be cleaned is placed in the oven. Each particle filter is connected to a pipe loop 20 and the temperature sensor 28 is placed inside the respective particle filter. The oven is then heated with the heating unit up to a suitable temperature, which can be in the range 450 - 600 ° C depending on the filter type. Then the control valves 22 are opened for the air so that air flows through each branch 20 and each loop 26. The air in the loop will be heated to the same temperature as the oven when it is then introduced into the particle filter. The air in the filter causes combustion, whereby particles in the filter are burned off. Appropriately, the air flow in the loop forward is now fine: so if the combustion bees are not so violent now the temperature is raised too much in the filter, which could otherwise damage the filter. The flow is measured by the fate meter 24 and is regulated by the control valve 22. In addition, the temperature sensor 28 continuously measures the temperature so that it does not become too high.
Om trots allt temperaturen âr på väg att nå en övre accepterbar gräns trots att luftflödet helt strypts, kan koldioxid ledas in i filtret för att dåmpa förbränningen. Reglerventilen 36 till respektive filter hos kretsen 32 med koldioxid öppnas då varvid koldioxid leds in i filtret för att dämpa förbränningen och därmed temperaturen. Det skall förstås att andra gaser kan användas som är i stånd att dämpa förbränningen i filtren.If, after all, the temperature is about to reach an upper acceptable limit even though the air gap has been completely restricted, carbon dioxide can be led into the filter to dampen the combustion. The control valve 36 for the respective filter of the circuit 32 with carbon dioxide is then opened, whereby carbon dioxide is led into the filter to dampen the combustion and thus the temperature. It is to be understood that other gases may be used which are capable of attenuating the combustion in the filters.
Eftersom förbränningsprocessema i filtren år exoterrniska, dvs. värme avges, krävs inte så stor effekt för att hålla ugnen vid arbetstemperatur.Since the combustion processes in the filters are exothermic, ie. heat is emitted, not so much power is required to keep the oven at working temperature.
Ugnen går endast på full effekt när den skall värmas upp. När processen sedan år igång skall endast ugnen hållas på konstant temperatur, varvid endast ca 25% av tillgänglig effekt utnyttjas. 10 15 20 25 533 875 Förutom rörslingor kan man tänka sig andra varianter och utformningar på det vârrneöverförande organet. Exempelvis kan ”värmeväxlare” användas, såsom plattvårmeväxlare. Det viktiga är att luften hinner värmas upp till rått arbetstemperatur när den kommer fram till filtret.The oven only runs at full power when it is to be heated. When the process has been running for years, only the oven should be kept at a constant temperature, with only about 25% of the available power being used. 10 15 20 25 533 875 In addition to pipe loops, other variants and designs of the heat transfer member are conceivable. For example, "heat exchangers" can be used, such as plate heat exchangers. The important thing is that the air has time to heat up to raw working temperature when it reaches the filter.
Når filtret har behandlats under en viss tid har partiklarna förbränts och skall avlägsnas. Det kan antingen göras genom att luft blåses in i filtret varvid de bortbrända partiklarna avlägsnas. Det skall dock förstås att vakuum kan utnyttjas istället, varvid de bortbrânda partiklarna sugs bort av lämpligt sugorgan. Efter detta mäts och kontrolleras lämpligen filtret avseende renhetsgrad efter rengöring samt att det inte föreligger några sprickor eller andra skador. Detta förfarande beskrivs i detalj i PCT/SEQOOS/ 050082, varvid hänvisning görs till detta dokument.After the filter has been treated for a certain time, the particles have been burned and must be removed. This can either be done by blowing air into the filter, removing the burned particles. It should be understood, however, that vacuum can be used instead, with the burned-off particles being sucked away by a suitable suction means. After this, the filter is measured and checked appropriately for degree of purity after cleaning and that there are no cracks or other damage. This method is described in detail in PCT / SEQOOS / 050082, reference being made to this document.
Den ovan beskrivna processen att rengöra partikelñlter är företrädesvis styrd och övervakad av lämplig reglerutrustning. Det kan exempelvis vara en PLC eller en industridator, som via de olika gívarna kan övervaka processen och via reglerventilerna styra förbrånningsförloppen för de enskilda partikelíiltren.The process of cleaning particle filters described above is preferably controlled and monitored by appropriate control equipment. It can be, for example, a PLC or an industrial computer, which via the various sensors can monitor the process and via the control valves control the combustion processes for the individual particle filters.
Det skall förstås att utföringsformen som beskrivs ovan och visas i ritningsfigxlren endast skall uppfattas som ett icke-begränsande exempel på uppfinningen och att denna endast begränsas av patentkravens skyddsomfång.It is to be understood that the embodiment described above and shown in the drawings is to be construed as a non-limiting example of the invention only and that this is limited only by the scope of the claims.
Claims (6)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0801033A SE533875C2 (en) | 2008-05-09 | 2008-05-09 | Particle filter cleaning device |
| PCT/SE2009/050521 WO2009136860A1 (en) | 2008-05-09 | 2009-05-11 | Device for cleaning of air filters |
| EP09742942A EP2310642A4 (en) | 2008-05-09 | 2009-05-11 | Device for cleaning of air filters |
| US12/991,759 US20110113994A1 (en) | 2008-05-09 | 2009-05-11 | Device for cleaning of air filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0801033A SE533875C2 (en) | 2008-05-09 | 2008-05-09 | Particle filter cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE0801033L SE0801033L (en) | 2009-11-10 |
| SE533875C2 true SE533875C2 (en) | 2011-02-15 |
Family
ID=41264785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0801033A SE533875C2 (en) | 2008-05-09 | 2008-05-09 | Particle filter cleaning device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110113994A1 (en) |
| EP (1) | EP2310642A4 (en) |
| SE (1) | SE533875C2 (en) |
| WO (1) | WO2009136860A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT510611B1 (en) * | 2010-11-02 | 2012-12-15 | Hanspeter Dipl Ing Mayer | DEVICE FOR CLEANING A FILTER OR CATALYST |
| WO2013056710A1 (en) * | 2011-10-20 | 2013-04-25 | Munch Miljø Teknik I/S | Method of cleaning a particle filter |
| CN113356969B (en) * | 2021-06-19 | 2022-08-16 | 浙江银轮智能装备有限公司 | Automatic cleaning equipment for particle filter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4331454A (en) * | 1979-03-15 | 1982-05-25 | Texaco Inc. | Exhaust filter rejuvenation method |
| US6744516B2 (en) * | 2001-08-21 | 2004-06-01 | Spx Corporation | Optical path structure for open path emissions sensing |
| US7390338B2 (en) * | 2005-01-25 | 2008-06-24 | Pollution Control Products Co. | Method and apparatus for regenerating engine exhaust filters |
| DE102005006368B4 (en) * | 2005-02-11 | 2007-09-06 | Siemens Ag | Device for determining turbidity of exhaust gases |
| WO2006096244A1 (en) * | 2005-03-04 | 2006-09-14 | Donaldson Company, Inc. | Apparatus for combusting collected diesel exhaust material from aftertreatment device and method |
| US7410530B2 (en) * | 2005-03-04 | 2008-08-12 | Donaldson Company, Inc. | Apparatus for cleaning exhaust aftertreatment devices and methods |
| US20080173007A1 (en) * | 2007-01-22 | 2008-07-24 | Imes Julian A | System for reducing emissions generated from diesel engines used in low temperature exhaust applications |
| EP2114547B1 (en) * | 2007-01-24 | 2014-12-24 | Stockforsa Invest Aktiebolag | Method and system for cleaning filters |
-
2008
- 2008-05-09 SE SE0801033A patent/SE533875C2/en not_active IP Right Cessation
-
2009
- 2009-05-11 US US12/991,759 patent/US20110113994A1/en not_active Abandoned
- 2009-05-11 WO PCT/SE2009/050521 patent/WO2009136860A1/en active Application Filing
- 2009-05-11 EP EP09742942A patent/EP2310642A4/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP2310642A1 (en) | 2011-04-20 |
| EP2310642A4 (en) | 2011-08-03 |
| US20110113994A1 (en) | 2011-05-19 |
| SE0801033L (en) | 2009-11-10 |
| WO2009136860A1 (en) | 2009-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |