SE1350910A1 - Arrangements in connection with air filters - Google Patents
Arrangements in connection with air filters Download PDFInfo
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- SE1350910A1 SE1350910A1 SE1350910A SE1350910A SE1350910A1 SE 1350910 A1 SE1350910 A1 SE 1350910A1 SE 1350910 A SE1350910 A SE 1350910A SE 1350910 A SE1350910 A SE 1350910A SE 1350910 A1 SE1350910 A1 SE 1350910A1
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- air flow
- air
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 13
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
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- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
- F02M35/086—Dust removal by flushing, blasting, pulsating or aspirating flow, washing or the like; Mechanical dust removal, e.g. by using scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
- F02M35/0223—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls by centrifugal forces, e.g. cyclones
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
- F02M35/164—Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
10 Sammandrag Ett arrangemang (2) vid f6rrening i ett luftfilter (4) for luftintag av ett begart luftflode (6) till en forbranningsmotor. Arrangemanget (2) innefattar en ejektor (8) anpassad att suga ut ett andra luftflode (10) med luft och partiklar fran en forrenare (12) i namnda luftfilter (4), och en utsugningsenhet (14) anordnad i anslutning till namnda ejektor (8) och anpassad att generera namnda andra luftflode (10) Than namnda forrenare (12). Arrangemanget (2) innefattar vidare en styrenhet (16) anpassad att styra namnda andra luftflode (10) for namnda utsugningsenhet (14) medelst en styrsignal (18), varvid styrenheten (16) är anpassad att styra namnda andra luftflode (10) enligt forutbestamda styrregler i beroende av en eller flera parametrar (20) relaterade till forbranningsmotorns drift. (Figur 1) Summary An arrangement (2) for pre-combining in an air filter (4) for air intake of a requested air flow (6) to an internal combustion engine. The arrangement (2) comprises an ejector (8) adapted to suck out a second air flow (10) with air and particles from a pre-cleaner (12) in said air filter (4), and an extraction unit (14) arranged in connection with said ejector ( 8) and adapted to generate said second air flow (10) Than said purifier (12). The arrangement (2) further comprises a control unit (16) adapted to control said second air flow (10) for said extraction unit (14) by means of a control signal (18), the control unit (16) being adapted to control said second air flow (10) according to predetermined control rules depending on one or more parameters (20) related to the operation of the internal combustion engine. (Figure 1)
Description
Titel Arrangemang i samband med luftfilter Uppfinningens omrade Foreliggande uppfinning avser ett arrangemang enligt ingressen av det oberoende patentkravet, och mera specifikt ett arrangemang i samband med en forrenare i ett luftfilter for att separera partiklar fran ett begart luftflode till en forbranningsmotor. FIELD OF THE INVENTION The present invention relates to an arrangement according to the preamble of the independent claim, and more specifically to an arrangement in connection with a pre-cleaner in an air filter for separating particles from a requested air flow to an internal combustion engine.
Bakgrund till uppfinningen En sa kallad ejektor forbattrar verkningsgraden pa en luftrenare med forrenare. En f6rrenare utg6r en del av luftrenaren och är placerad uppstroms om ett huvudfilter (ibland kallad filterpatron) i luftrenaren och som med centrifugalkraft separerar st6rre partiklar Than luften innan den filtreras i filterpatronen. Background of the Invention A so-called ejector improves the efficiency of an air purifier with a pre-purifier. A purifier forms part of the air purifier and is located upstream of a main filter (sometimes called a filter cartridge) in the air purifier and which with centrifugal force separates larger particles than the air before it is filtered in the filter cartridge.
En ejektor okar luftmassflodet genom forrenaren vilket okar verkningsgraden. Wag astadkommes luftflodet genom ejektorn till exempel genom att koppla ejektorn i forrenaren till slutroret pa avgassystemet vilket gor att smutsig luft sugs ut av ejektorn och fors sedan ut via avgaserna och pa sa satt akar nnassflodet genom forrenaren. An ejector increases the air mass flow through the pre-cleaner, which increases the efficiency. Wag, the air flow through the ejector is achieved, for example, by connecting the ejector in the pre-cleaner to the final pipe on the exhaust system, which means that dirty air is sucked out of the ejector and then forced out via the exhaust gases.
Vid installationer dar luftinloppet och avgassystennet sitter langt ifran varandra är det ibland svart att astadkomma en bra verkningsgrad f6r ejektorn eftersom en lang och komplicerad rordragning kan g6ra att ejektorn blir verkningslos. In installations where the air inlet and the exhaust system are far apart, it is sometimes difficult to achieve a good efficiency for the ejector because a long and complicated pipe wiring can make the ejector ineffective.
En annan nackdel med en sadan losning (att koppla ejektorn till avgassystemet) är att fOr motorer med lagt luftmassflOde har aven de en sarnre verkningsgrad fOr ejektorn, p.g.a. att venturieffekten i avgasroret blir sa liten nar det är sma massflOden. Another disadvantage of such a solution (connecting the ejector to the exhaust system) is that for engines with added air mass flow, they also have a lower efficiency for the ejector, due to that the venturi effect in the exhaust pipe becomes so small when there is a small mass flow.
Foljande patentdokument visar exempel pa anvandning av forrenare i luftreningsanordningar. The following patent documents show examples of the use of pre-cleaners in air purification devices.
GB1491157 visar en centrifugalseparerande forrenare som toms pa separerat damm med hjalp av en sugflakt. GB1491157 discloses a centrifugal separating purifier which is emptied of separated dust by means of a suction flap.
EP2136066 visar en centrifugalseparerande forrenare som rengors med en anordning. Anordningen innefattar en flakt och anvands tillsannmans med en venturianordning for att suga ut smutsen ur forrenaren. EP2136066 discloses a centrifugal separating pre-cleaner which is cleaned with a device. The device comprises a flap and is used concomitantly with a venturi device to suck the dirt out of the pre-cleaner.
US1530645 visar att som alternativ till ett venturiror i avgassystemet for att suga ut partiklar fran en centrifugalseparerande luftrenare kan en flakt i kombination med venturiror anvandas eller enbart en flakt. US1530645 shows that as an alternative to a venturi in the exhaust system for sucking out particles from a centrifugal separating air purifier, a flake in combination with venturi can be used or only a flake.
EP1918009 visar en f6rrenare som separerar partiklar tan luften med centrifugalkraft. Stora partiklar i narheten av forrenarens yttervagg sugs ut med hjalp av kylflakten. EP1918009 discloses a purifier which separates particles into the air by centrifugal force. Large particles near the outer wall of the pre-cleaner are sucked out with the help of the cooling surface.
US5472463 visar en f6rrenare som rengors genom att en elektriskt driven flakt suger ut partiklar. US5472463 discloses a purifier which is cleaned by an electrically driven vane sucking out particles.
Syftet med foreliggande uppfinning är att astadkomma ett forbattrat arrangemang i sannband med luftrenare som uppvisar energimassiga och konstruktionsnnassiga fordelar i jamforelse med dagens system. The object of the present invention is to achieve an improved arrangement in true straps with air purifiers which exhibit energetic and construction-related advantages in comparison with the current system.
Sammanfattning av uppfinningen Ovan namnda syften astadkommes med uppfinningen definierad av det oberoende patentkravet. Summary of the Invention The above objects are achieved by the invention defined by the independent claim.
Foredragna utf6ringsformer definieras av de beroende patentkraven. Preferred embodiments are defined by the dependent claims.
Uppfinningen avser en elektriskt driven flakt for att ejektera partiklar fran forrenare. Den ejekterande flakten okar verkningsgraden pa forrenaren genom att oka luftflodet genom forrenaren och pa sa satt oka centrifugalkraften som bidrar till okande reningsgrad for forrenaren samtidigt som den suger ut smutsig luft. The invention relates to an electrically driven vane for ejecting particles from purifiers. The ejecting flux increases the efficiency of the pre-cleaner by increasing the air flow through the pre-cleaner and thus increasing the centrifugal force which contributes to an increasing degree of purification for the pre-cleaner at the same time as it sucks out dirty air.
Den elektriska ejektorn enligt uppfinningen uppvisar en behovsstyrd styrning, dvs. den är aktiverad vid ett angivet luftmassflode och att den cla levererar en kapacitet av en forutbestamd del, exv. 10%, av det luftmassflode som begarts av turbon. The electric ejector according to the invention has a demand-controlled control, ie. it is activated at a specified air mass flow and that it cla delivers a capacity of a predetermined part, e.g. 10%, of the air mass flow required by the turbo.
Vid ett lagt luftmassflocle sa suger man inte in sa mycket damm i inloppssystemet och om den da är aktiverad sa skulle det bara vara en onodig energiatgang. With a laid air mass flock, you do not suck in as much dust in the inlet system and if it is then activated, it would only be an unnecessary energy supply.
Arrangemanget enligt uppfinningen är helt oberoende av hur avgassystemet är uppbyggt och fungerar f6r alla installationer. The arrangement according to the invention is completely independent of how the exhaust system is constructed and works for all installations.
Forrenarens prestanda forbattras vilket medfor att man forlanger bytesintervallet av luftfiltret for fordonet. The performance of the pre-cleaner is improved, which means that the replacement interval of the air filter for the vehicle is required.
For fordon som idag inte kan ha en forrenare med ejektor p.g.a. svarigheter att installera anslutningar till avgassystemet (bl.a. i bussar och andra fordon) kan med arrangemanget enligt uppfinningen installera en sadan och darmed forbattra prestandan avsevart for luftfiltret. For vehicles that today cannot have a pre-cleaner with an ejector due to With the arrangement according to the invention, those responsible for installing connections to the exhaust system (among other things in buses and other vehicles) can install one and thereby improve the performance significantly for the air filter.
Den behovsstyrda ejektorverkan sakerstaller att man far ejektorverkan nar den behoys och ger nnest effekt. The demand-controlled ejector effect ensures that you get the ejector effect when it is needed and gives the next effect.
Kort ritningsbeskrivning Figur 1 visar ett schematiskt blockschema som illustrerar foreliggande uppfinning. Figur 2 visar ett schematiskt tvarsnitt som illustrerar en utfOringsform av foreliggande uppfinning. Brief Description of the Drawings Figure 1 shows a schematic block diagram illustrating the present invention. Figure 2 shows a schematic cross-section illustrating an embodiment of the present invention.
Figur 3 visar ett schematiskt tvarsnitt av en forrenare i ett luftfilter som illustrerar en annan utforingsform av uppfinningen. Figure 3 shows a schematic cross-section of a pre-cleaner in an air filter illustrating another embodiment of the invention.
Detaljerad beskrivning av fOredragna utf6ringsformer av uppfinningen Med hanvisning till de bifogade figurerna kommer nu uppfinningen att beskrivas i detalj. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION With reference to the accompanying figures, the invention will now be described in detail.
I figurerna har samma eller liknande detaljer genomgaende erhallit samnna hanvisningsbeteckningar. In the figures, the same or similar details have consistently been given the same male designation.
Uppfinningen avser ett arrangennang 2 som schennatiskt visas i figur 1. Arrangmanget är avsett att anvandas vid forrening i ett luftfilter 4 for luftintag av ett begart luftflode 6 till en forbranningsmotor, via en f6rgasaranordning eller vi ett bransleinsprutningssystem. Forbranningsmotorn visas ej i figuren da det är en i sig kand anordning med kand funktion som darfor inte narmare behover beskrivas ha r. The invention relates to an arrangement 2 which is schematically shown in figure 1. The arrangement is intended to be used when pre-combining in an air filter 4 for air intake of a requested air flow 6 to an internal combustion engine, via a carburettor device or in an fuel injection system. The internal combustion engine is not shown in the figure as it is a per se known device with a known function which therefore does not need to be described in more detail.
Arrangemanget 2 innefattar en ejektor 8 anpassad att suga ut ett andra luftflode 10 med luft och partiklar Than en fOrrenare 12 i namnda luftfilter 4 och en utsugningsenhet 14 anordnad i anslutning till ejektorn 8 och anpassad att generera det andra luftflodet 10 fran forrenaren 12. The arrangement 2 comprises an ejector 8 adapted to suck out a second air flow 10 with air and particles Than a pre-cleaner 12 in said air filter 4 and an extraction unit 14 arranged in connection with the ejector 8 and adapted to generate the second air flow 10 from the pre-cleaner 12.
Arrangemanget 2 innefattar vidare en styrenhet 16 anpassad att styra det andra luftflodet 10 for utsugningsenheten 14 medelst en styrsignal 18. Styrningen av det andra luftflodet 10 sker enligt forutbestamda styrregler i beroende av en eller flera parametrar 20 relaterade till forbranningsmotorns drift. The arrangement 2 further comprises a control unit 16 adapted to control the second air flow 10 for the extraction unit 14 by means of a control signal 18. The control of the second air flow 10 takes place according to predetermined control rules depending on one or more parameters 20 related to the operation of the internal combustion engine.
Luftfiltret 4 är ett luftfilter av en allnnant anvand sort som innefattar ett huvudfilter 22 i anslutning till forrenaren och att forrenare 12 är anpassad att rena luften innan den kommer till huvudfiltret 22. Forrenaren 12 är anpassad att separera partiklar tan luften med centrifugalkraft till en radiellt belagen yttre del av forrenaren 12 och att namnda ejektor 8 är anordnad i namnda yttre del fOr att suga ut det andra luftfloclet 10. Huvudfiltret 22 har vidare en 6ppning f6r insugning av ett luftflode 23 som utgOr summan av det begarda luftflOdet 6 och det andra luftflOdet 10. The air filter 4 is an air filter of a commonly used type which comprises a main filter 22 adjacent to the pre-cleaner and that the pre-cleaner 12 is adapted to purify the air before it reaches the main filter 22. The pre-cleaner 12 is adapted to separate particles of the air by centrifugal force outer part of the pre-purifier 12 and that said ejector 8 is arranged in said outer part for sucking out the second air flow 10. The main filter 22 further has an opening for suction of an air flow 23 which constitutes the sum of the requested air flow 6 and the second air flow 10. .
Enligt en utforingsform innefattar namnda parametrar 20 det begarda luftflOdet 6 till fOrgasaranordningen. Storleken pa det begarda luftflOdet 6 beror naturligtvis bland annat pa motorstyrkan, begart motorvarvtal, motorlast, etc. For lastbilar är ett normalt luftflode i intervallet 15-35 m3/minut beroende pa motorstyrka och for bussar ligger det i intervallet 15-28 m3/minut. Ett luftflode pa 10 m3/minut betraktas som ett lagt luftflode. According to one embodiment, said parameters 20 comprise the requested air flow 6 to the carburettor device. The size of the requested air flow 6 naturally depends, among other things, on the engine power, requested engine speed, engine load, etc. For trucks, a normal air flow in the range 15-35 m3 / minute depends on engine power and for buses it is in the range 15-28 m3 / minute. . An air flow of 10 m3 / minute is considered a laid air flow.
Enligt en annan utforingsform innefattar namnda parametrar 20 ett begart varvtal for forbranningsmotorn. According to another embodiment, said parameters 20 comprise a requested speed of the internal combustion engine.
Enligt ytterligare en utforingsform innefattar namnda parametrar 20 motorlasten f6r forbranningsmotorn. According to a further embodiment, said parameters 20 comprise the engine load for the internal combustion engine.
Ofta är det en kombination av ett flertal parametrar som anvands, till exempel anvands begart motorvarvtal och motorlast i kombination med nnotorstorlek ett begart luftflode, Naturligtvis kan flera parametrar av de namnda parametrarna anvandas samtidigt for att astadkomma en behovsstyrd aktivering av utsugningsenheten 14. Often a combination of several parameters is used, for example the requested engine speed and engine load are used in combination with the notor size a requested air flow. Of course, several parameters of the mentioned parameters can be used simultaneously to achieve a demand-controlled activation of the extraction unit 14.
Parametrarna finns foretradesvis tillgangliga for styrenheten fran fordonets CAN- buss (inte visad). The parameters are preferably available to the control unit from the vehicle's CAN bus (not shown).
Foretradesvis innefattar styrreglerna en regel som innebar att jannfora nannnda begarda luftflode 6 till forgasaranordningen med ett troskelvarde for begart luftflode 6, och om det begarda luftflodet 6 understiger troskelvardet styrs nannnda andra luftflode 10 till att vara noll. Troskelvardet kan till exempel vara ett begart luftflode som är pa en lag niva, vilket exemplifierades ovan. Preferably, the control rules comprise a rule which involved feeding said requested air flow 6 to the carburetor device with a threshold value for requested air flow 6, and if the requested air flow 6 falls below the threshold value, said second air flow 10 is controlled to be zero. The threshold value can, for example, be a requested air flow that is at a low level, which was exemplified above.
Enligt en annan styrregel astadkommes den behovsstyrda styrningen av det andra luftflodet. Mera specifikt sker detta genom att styrregler är anpassade att styra det andra luftflodet 10 sa att det utgor en fOrutbestarnd del av det begarda luftflodet 6. According to another control rule, the demand-controlled control of the second air flow is achieved. More specifically, this is done in that control rules are adapted to control the second air flow 10 so that it forms a predetermined part of the requested air flow 6.
Den forutbestamda delen ligger i intervallet 5-15%, foretradesvis i intervallet 8- 12%, till exempel ca 10%. The predetermined portion is in the range of 5-15%, preferably in the range of 8-12%, for example about 10%.
Det andra luftflodet kan astadkonnnnas pa ett antal olika satt av utsugningsenheten 14. Enligt en variant utgors utsugningsenheten 14 av en flakt som antingen direkt eller indirekt kan generera det andra luftflodet. Flakten är foretradesvis elektriskt driven. Naturligtvis kan aven pneumatiskt och hydrauliskt drivna flaktar anvandas. The second air flow can be effected in a number of different ways by the extraction unit 14. According to a variant, the extraction unit 14 is constituted by a flux which can either directly or indirectly generate the second air flow. The flat is preferably electrically driven. Of course, pneumatically and hydraulically driven flaps can also be used.
I det schematiska blockschemat visat i figur 2 visas en utf6ringsform dar utsugningsenheten 14 utgors av en flakt som har monterats i en roranslutning som är kopplad till ejektorn 8, dvs. flakten genererar ett direkt luftflode som suger ut luft Than fOrrenaren. Flakten styrs av styrsignalen 18 sa att det Onskade andra luftflodet 10 astadkommes. The schematic block diagram shown in Figure 2 shows an embodiment in which the extraction unit 14 is formed by a flat which has been mounted in a pipe connection which is connected to the ejector 8, i.e. the float generates a direct air flow that sucks out air Than the Purifier. The flight is controlled by the control signal 18 so that the desired second air flow 10 is achieved.
I det schematiska blockschemat visat i figur 3 astadkommes istallet det andra luftflodet 10 indirekt. Har är flakten 14 placerad sa att den suger in luft fran omgivningen och flodet (illustrerat med pilar) som da genereras i ett ytterror 24 astadkommer ett undertryck i mynningen av ett innerror 26 som mynnar i ytterroret. Undertrycket genererar ett flode, det andra flodet 10, i innerroret 26. Insugningsoppningen 28 for ytterroret kan till exempel vara monterad i nnotorrunnnnet for forbranningsnnotorn. Vid en sadan nnontering bidrar detta till att sanka temperaturen i motorrummet vilket har positiva effekter pa livslangden av nnotorkonnponenterna. Ett nat 28 ar fOretradesvis anordnat pa insugningsoppningen for att forhindra att partiklar sugs in i det yttre roret. In the schematic block diagram shown in Figure 3, the second air flow 10 is provided instead indirectly. If the surface 14 is positioned so that it sucks in air from the surroundings and the river (illustrated with arrows) which is then generated in an outer tube 24 creates a negative pressure in the mouth of an inner tube 26 which opens into the outer tube. The negative pressure generates one flood, the second flood 10, in the inner tube 26. The suction opening 28 for the outer tube may, for example, be mounted in the engine housing for the combustion engine. With such an installation, this contributes to lowering the temperature in the engine compartment, which has positive effects on the service life of the engine components. A night 28 is preferably provided on the intake port to prevent particles from being sucked into the outer tube.
Vid en jamforelse mellan de [Ada utforingsformerna som illustrerats i figurerna 2 och 3 avseende den effekt som flakten maste kunna generera finns det foljande skillnader. In a comparison between the [Ada embodiments illustrated in Figures 2 and 3 regarding the effect that the flattening must be able to generate, there are the following differences.
I utf6ringsformen visad i figur 2 behover man en flakt som bara klarar 10% av det av fOrgasaren begarda luftmassflOdet. In the embodiment shown in Figure 2, a flux is required which can only handle 10% of the air mass flow requested by the carburettor.
I utforingsformen visad i figur 3 sitter inte flakten i det andra luftflode. Detta medfor att man behover ha ett hogre massflode an for flakten i figur 2. Enligt ett exempel skulle effektiviteten for installationen enligt figur 3 vara ca 10% och det skulle innebara att flaktens kapacitet skulle behova vara av sannnna storleksordning sonn for aft astadkomma det begarda luftflodet. In the embodiment shown in Figure 3, the flux is not in the second air flow. This means that it is necessary to have a higher mass flow than for the float in Figure 2. According to one example, the efficiency of the installation according to Figure 3 would be about 10% and this would mean that the capacity of the flake would need to be of a true magnitude to achieve the required air flow. .
Foreliggande uppfinning är inte begransad till ovan-beskrivna foredragna utforingsformer. Olika alternativ, mod ifieringar och ekvivalenter kan anvandas. The present invention is not limited to the above-described preferred embodiments. Different alternatives, modifications and equivalents can be used.
Utforingsformerna ovan skall darfor inte betraktas som begransande uppfinningens skyddsomfang vilket definieras av de bifogade patentkraven. The above embodiments are, therefore, not to be construed as limiting the scope of the invention as defined by the appended claims.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1350910A SE538986C2 (en) | 2013-07-23 | 2013-07-23 | Arrangements in connection with air filters |
| PCT/SE2014/050751 WO2015012756A1 (en) | 2013-07-23 | 2014-06-18 | Arrangement for use with an air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1350910A SE538986C2 (en) | 2013-07-23 | 2013-07-23 | Arrangements in connection with air filters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1350910A1 true SE1350910A1 (en) | 2015-01-24 |
| SE538986C2 SE538986C2 (en) | 2017-03-14 |
Family
ID=52393644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1350910A SE538986C2 (en) | 2013-07-23 | 2013-07-23 | Arrangements in connection with air filters |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE538986C2 (en) |
| WO (1) | WO2015012756A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE1751408A1 (en) * | 2017-11-15 | 2019-05-16 | Scania Cv Ab | Cyclone separator and Related Devices |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3193005B1 (en) | 2016-01-15 | 2018-12-12 | AGCO International GmbH | A pre-filter system for a vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3469566A (en) * | 1967-01-19 | 1969-09-30 | Hastings Mfg Co | Centrifugal air precleaner with blower |
| JP2005163597A (en) * | 2003-12-02 | 2005-06-23 | Komatsu Ltd | Centrifugal dust separator |
| US8424279B2 (en) * | 2007-03-28 | 2013-04-23 | United Technologies Corporation | Particle separator and debris control system |
| US8007565B2 (en) * | 2007-10-23 | 2011-08-30 | The Sy-Klone Company | Powered air cleaning system and air cleaning method |
| GB0809111D0 (en) * | 2008-05-20 | 2008-06-25 | Agco Sa | Air filter system |
| US9518510B2 (en) * | 2011-12-30 | 2016-12-13 | Rolls-Royce North American Technologies, Inc. | Blower for use with air particle separator |
-
2013
- 2013-07-23 SE SE1350910A patent/SE538986C2/en not_active IP Right Cessation
-
2014
- 2014-06-18 WO PCT/SE2014/050751 patent/WO2015012756A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE1751408A1 (en) * | 2017-11-15 | 2019-05-16 | Scania Cv Ab | Cyclone separator and Related Devices |
| SE541332C2 (en) * | 2017-11-15 | 2019-07-09 | Scania Cv Ab | Cyclone separator and Related Devices |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015012756A1 (en) | 2015-01-29 |
| SE538986C2 (en) | 2017-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |