SE537324C2 - Fuel Filtering Device - Google Patents

Fuel Filtering Device Download PDF

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Publication number
SE537324C2
SE537324C2 SE1350740A SE1350740A SE537324C2 SE 537324 C2 SE537324 C2 SE 537324C2 SE 1350740 A SE1350740 A SE 1350740A SE 1350740 A SE1350740 A SE 1350740A SE 537324 C2 SE537324 C2 SE 537324C2
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SE
Sweden
Prior art keywords
fuel
container
base part
filtration chamber
filter
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Application number
SE1350740A
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Swedish (sv)
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SE1350740A1 (en
Inventor
Dan Cedfors
Anders Jonsson
Original Assignee
Scania Cv Ab
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Publication date
Application filed by Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1350740A priority Critical patent/SE537324C2/en
Priority to PCT/SE2014/050698 priority patent/WO2014204379A1/en
Publication of SE1350740A1 publication Critical patent/SE1350740A1/en
Publication of SE537324C2 publication Critical patent/SE537324C2/en

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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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/34—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/42—Installation or removal of filters
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Filtration Of Liquid (AREA)

Abstract

SAMMANDRAG En anordning for filtrering av flytande bransle pa dettas vag melIan en bransletank och en forbranningsmotor innefattar ett filter- hus (10) med en filtreringskammare (13). En filterkassett (14) är mottagen i filtreringskammaren. Nar vid filterbyte filtreringskassetten lyfts upp ur filterhuset frilaggs en draneringsoppning i botten av filterhuset och i filtreringskammaren befintligt bransle leds via gravitationen ned i en behallare (24) med ett inlopp pa en lagre niva an draneringsoppningen. SUMMARY A device for filtering liquid fuel on its path between a fuel tank and an internal combustion engine comprises a filter housing (10) with a filtration chamber (13). A filter cartridge (14) is received in the filtration chamber. When the filter cassette is lifted out of the filter housing, a drainage opening is exposed at the bottom of the filter housing and existing fuel in the filtration chamber is led via gravity down into a container (24) with an inlet at a lower level than the drainage opening.

Description

537 324 Branslefiltreringsanordning 5 UPPFINNINGENS TEKNISKA OMRADE Uppfinningen avser en anordning for filtrering av flytande bransle enligt ingressen hos bifogade patentkrav 1. TECHNICAL FIELD OF THE INVENTION The invention relates to a device for filtering liquid fuel according to the preamble of appended claims 1.

Darvid är uppfinningen inte last till nagon specifik typ av forbran- ningsmotor eller bransle, och som nagra icke-uttommande exempel pa branslen kan diesel och etanol namnas. Likasa avser uppfinningen filtrering av bransle till forbranningsmotorer avsedda for alla typer av anvandning, sasom i industriella applikationer, i krossningsmaskiner och i allehanda typer av motorfordon, aven om uppfinningen är speciellt applicerbar pa hjulburna motorfordon, speciellt nyttofordon, sasom lastbilar och bussar och av den anledningen nedan stundom kommer att diskuteras i den anvandningen i for uppfinningen belysande men saledes ingalunda beg ransande syfte. In this case, the invention is not a load for any specific type of internal combustion engine or industry, and as some non-exhaustive examples of the industry, diesel and ethanol can be mentioned. The invention also relates to the filtration of fuel for internal combustion engines intended for all types of use, such as in industrial applications, in crushing machines and in all types of motor vehicles, although the invention is particularly applicable to wheeled motor vehicles, especially commercial vehicles, such as trucks and buses and for that reason below will sometimes be discussed in that use for the purpose of illustrating the invention but thus by no means limiting.

En namnd filtreringsanordning är anordnad i en lagtrycksdel hos ett system for matning av bransle fran en bransletank till en forbranningsmotor for att fanga upp smutspartiklar i branslet och skydda i systemets hogtrycksdel anordnad utrustning for insprut- ning av branslet i forbranningsmotorn. Darvid avser foreliggande uppfinning branslefiltreringsanordningar for efterfoljande hogtrycksdel med godtyckligt utseende. 1 537 324 En anordning av inledningsvis definierat slag benamns ha ett "toppmonterat filter", eftersom filterelementet byts ut genom att den detta innehallande filterkassetten lyfts uppat ur filterhuset. Vid sadant filterbyte frilaggs draneringsoppningen i botten hos filterhusets basdel och hos tidigare kanda filtreringsanordningar av detta slag leds det da i filterhusets filtreringskammare befintliga smutsiga branslet med hjalp av gravitationen tillbaka till namnda bransletank i syfte att skydda namnda insprutningsutrustning nedstroms om filterhuset under filterbytet och eventuell ytterligare service. A named filtration device is arranged in a low pressure part of a system for feeding fuel from a fuel tank to an internal combustion engine to catch dirt particles in the industry and protect equipment arranged in the high pressure part for injecting the fuel into the internal combustion engine. In this connection, the present invention relates to industry filtration devices for subsequent high-pressure part with any appearance. A device of an initially defined type is called having a "top-mounted filter", since the filter element is replaced by lifting the filter cassette containing it upwards out of the filter housing. In such a filter change, the drainage opening is exposed in the bottom of the base part of the filter housing and in previously known filtration devices of this kind the dirty fuel then present in the filter housing filtration chamber is led back to said fuel tank by gravity in order to protect said injection equipment. .

BAKGRUNDSTEKNIK US 2002/0020661 Al visar en filtreringsanordning av inlednings- vis namnt slag. BACKGROUND ART US 2002/0020661 A1 discloses a filtration device of the initially named kind.

Ofta är emellertid namnda bransletank belagen pa ett forhallandevis langt avstand fran filterhuset, som mestadels är belagen i direkt anslutning till forbranningsmotorn, och ledningen fran fil- terhuset tillbaka till bransletanken blir da lang och kan vara pla- cerad bade hogt och lagt, och da racker inte gravitationen till att vare sig dranera eller transportera det ofiltrerade smutsiga branslet fran filterhuset. (Luftbubblor i ledningen kan aven bromsa transporten). Detta är exempelvis speciellt fallet hos ovannamnda motorfordon i form av lastbilar och bussar. Det ofil- trerade smutsiga branslet kommer da att ligga kvar i filterhuset och vid isattande av en ny filterkassett finns risk for att det hamnar pa den "rena" sidan av filterelementet och da vid uppstart efter service kan det na namnda insprutningssystem med risk for att fororsaka skador pa dess utrustning. 2 537 324 SAMMANFATTNING AV UPPFINNINGEN Syftet med fOreliggande uppfinning är att tillhandahalla en an- ordning av inledningsvis definierat slag, vilken anvisar en i far- hallande till tidigare kanda sadana anordningar atminstone i nagot hanseende forbattrad losning av ovannamnda problem. Often, however, said fuel tank is located at a relatively long distance from the filter housing, which is mostly coated in direct connection with the internal combustion engine, and the line from the filter housing back to the fuel tank is then long and can be placed both high and low, and then racks not gravity to either drain or transport the unfiltered dirty fuel from the filter housing. (Air bubbles in the line can also slow down transport). This is especially the case with the above-mentioned motor vehicles in the form of trucks and buses. The unfiltered dirty fuel will then remain in the filter housing and when inserting a new filter cassette there is a risk that it ends up on the "clean" side of the filter element and then when starting up after service it may reach the said injection system with risk of causing damage to its equipment. SUMMARY OF THE INVENTION The object of the present invention is to provide a device of an initially defined type, which provides a device in relation to the prior art which is at least somewhat improved in solving the above-mentioned problems.

Detta syfte uppnas enligt uppfinningen genom att tillhandahalla 10 en anordning av det slaget med de i den kannetecknande delen hos patentkrav 1 uppraknade sardragen. This object is achieved according to the invention by providing a device of the kind with the features mentioned in the jug-drawing part of claim 1.

Genom att anordna en namnd behallare for uppsamling av i filtreringskammaren befintligt bransle vid filterbyte (upplyftande av filterkassetten) med sitt inlopp pa en lagre niva an filterhusets draneringsoppning kan det i filtreringskammaren befintliga brans-let via gravitationen effektivt tommas i behallaren, sa att inte nagot smutsigt bransle blir kvar i filtreringskammaren och riskerar hamna pa den "rena" sidan av filterelementet vid isattande av en ny filterkassett. Harigenom skyddas effektivt utrustningen hos det i branslematningsvagen fran bransletank till forbranningsmotor efter filtreringsanordningen befintliga bransleinsprutningssystemet. Behallaren kan bekvamt anordnas sa att branslet inte blir fast pa nagot stalle vid ledning dartill, sasom tidigare varit fallet vid tillbakaledning av branslet till bransletanken. By arranging a named container for collecting fuel present in the filtration chamber when changing the filter (lifting the filter cassette) with its inlet at a lower level than the drainage opening of the filter housing, the industry present in the filtration chamber can be effectively emptied into the container via gravity, so that no dirt fuel remains in the filtration chamber and risks ending up on the "clean" side of the filter element when a new filter cartridge is inserted. In this way, the equipment of the fuel injection system existing in the fuel supply trolley from the fuel tank to the internal combustion engine after the filtration device is effectively protected. The container can be conveniently arranged so that the industry does not become stuck in any place when it is led to it, as has previously been the case when the industry is returned to the industry tank.

Enligt en utfOringsform av uppfinningen är ledningsorganet for forbindande av draneringsoppningen med behallarens inlopp, draneringsoppningen och lokaliseringen av behallaren relativt fil- terhuset avpassade for att vid upplyftande av filterkassetten ur 3 537 324 basdelen via gravitationen tOrnma filtreringskammaren pa bransle inom fern sekunder eller inom tre sekunder fran tidpunkten far startande av namnda upplyftande. Harigenom kommer alit smutsigt bransle i filtreringskammaren effektivt "sugas" ut ur filtrering- 5 skammaren som darigenom toms fullstandigt innan det finns nagon chans att stoppa i en ny filterkassett i filterhuset ens for den snabbaste servicetekniker. According to an embodiment of the invention, the guide means for connecting the drainage opening to the inlet of the container, the drainage opening and the location of the container relative to the filter housing are adapted to lift the filtration chamber on fuel within four seconds or within three seconds when lifting the filter cassette from gravity. the time may start of the said uplifting. As a result, all dirty fuel in the filtration chamber will be effectively "sucked" out of the filtration chamber, which is thereby completely emptied before there is any chance of stuffing in a new filter cartridge in the filter housing even for the fastest service technician.

Enligt en annan utforingsform av uppfinningen är behallaren an- ordnad med namnda inlopp dari pa ett avstand fran dranerings- oppningen av 0-0,5 meter eller 0-0,3 meter. Genom att anordna behallaren pa sadant kart avstand fran filterhusets draneringsoppning kan en snabb och tillforlitlig fullstandig tomning av filtreringskammaren pa bransle ske vid upplyftande av filterkassetten. According to another embodiment of the invention, the container is arranged with said inlet therein at a distance from the drainage opening of 0-0.5 meters or 0-0.3 meters. By arranging the container at such a short distance from the drainage opening of the filter housing, a fast and reliable complete emptying of the filtration chamber in the industry can take place when the filter cassette is lifted.

Enligt en annan utforingsform av uppfinningen är behallaren anordnad rakt under basdelen, och da kan med fordel en botten has basdelen bilda ovre begransning av behallaren och draneringsoppningen mynna i behallarens inlopp. Flarigenom kan en mycket snabb och effektiv tomning av filtreringskammaren pa smutsigt bransle ske vid upplyftande av filterkassetten. According to another embodiment of the invention, the container is arranged directly below the base part, and then advantageously a bottom has the base part can form an upper delimitation of the container and the drainage opening opens into the inlet of the container. As a result, a very fast and efficient emptying of the filtration chamber on dirty fuel can take place when lifting the filter cassette.

Enligt en annan utforingsform av uppfinningen innefattar tillslutningsorganet en tackdel utformad att vara fast pa undersidan av 25 filterkassetten. According to another embodiment of the invention, the closing means comprises a roof part designed to be fixed on the underside of the filter cassette.

Enligt en ytterligare annan utfOringsform av uppfinningen uppvisar behallaren ett utlopp for atminstone delvis tomning darav pa bransle mottaget fran filterhuset. Genom att behallaren uppvisar 4 537 324 ett sadant utlopp kan den tommas pa bransle utan att den for den skull maste lyftas bort fran sin placering i narheten av filterhuset. According to yet another embodiment of the invention, the container has an outlet for at least partial emptying thereof on fuel received from the filter housing. Because the container has such an outlet, it can be emptied of fuel without having to be lifted away from its location near the filter housing.

Enligt en vidareutveckling av denna utforingsform är behallarens utlopp forbundet med en ledning forbunden med inloppet hos fil- terhusets basdel for tomning av bransle fran behallaren till denna ledning. Detta innebar att branslet som "dumpats" i behallaren kommer att matas tillsammans med annat bransle fr5n bransletanken till filterhuset for filtrering av den nyinsatta filterkassetten vid fortsatt drift av forbranningsmotorn. Darvid kan i behallarens utlopp en backventil vara anordnad att forhindra att bransle matas in fran namnda ledning till behallaren. According to a further development of this embodiment, the outlet of the container is connected to a pipe connected to the inlet of the base part of the filter housing for emptying of fuel from the container to this pipe. This meant that the fuel "dumped" in the tank will be fed together with other fuel from the fuel tank to the filter housing for filtering the newly inserted filter cartridge during continued operation of the internal combustion engine. In this case, a non-return valve can be arranged in the outlet of the container to prevent fuel from being fed from the said line to the container.

Enligt en annan utforingsform av uppfinningen är behallarens ut- lopp forbundet med en ledning for atminstone delvis tomning av behallaren pa bransle i ett karl. Branslet i det separata [cadet tas sedan omhand pa lampligt s5tt och behallaren är efter tomningen redo att uppfylla sin funktion vid nastkommande filterbyte. According to another embodiment of the invention, the outlet of the container is connected to a line for at least partially emptying the container of fuel in a vessel. The fuel in the separate cadet is then taken care of in an appropriate manner and the container is ready to fulfill its function when the filter is replaced.

Enligt en annan utforingsform av uppfinningen är behallarens ut- lopp forbundet med en ledning for aterledning av bransle fran behallaren till en namnd bransletank. Nar det smutsiga branslet v51 natt behallaren är det okritiskt om aterledningen av branslet till bransletanken är langsam och utsatt for storningar. According to another embodiment of the invention, the outlet of the container is connected to a line for diverting fuel from the container to a named fuel tank. When the dirty industry v51 night container, it is uncritical if the return of the industry to the industry tank is slow and prone to disturbances.

Uppfinningen avser 5N/en en inrattning for matning av bransle frail en bransletank till en hOgtrycksdel av ett system for bransleinsprutning i en forbranningsmotor, vilken innefattar en i en lagtrycksdel i en ledning mellan bransletanken och forbranningsmo- torn anordnad filtreringsanordning enligt uppfinningen. Fordelar- 537 324 na med en sadan inrattning for branslematning framgar tydligt av diskussionen ovan av den uppfinningsenliga anordningen och utforingsformerna darav. 5 Uppfinningen avser aven ett motorfordon som uppvisar en uppfinningsenlig anordning for filtrering av bransle. The invention relates to a device for feeding fuel from a fuel tank to a high-pressure part of a fuel injection system in an internal combustion engine, which comprises a filtering device according to the invention arranged in a low-pressure part in a line between the fuel tank and the internal combustion engine. The advantages of such a device for industry feeding are clear from the discussion above of the device according to the invention and the embodiments thereof. The invention also relates to a motor vehicle which has a device according to the invention for filtering fuel.

Ytterligare fordelar med samt fordelaktiga sardrag has uppfinningen framgar av den nedan foljande beskrivningen. Additional advantages and advantageous features of the invention will become apparent from the following description.

KORT BESKRIVNING AV RITNINGARNA Har nedan beskrivs sasom exempel anforda utforingsformer av uppfinningen under hanvisning till bifogade ritningar, pa vilka: Fig. 1 är en mycket schematisk vy illustrerande uppbyggnaden av en inrattning for branslematning fran en bransletank till en forbranningsmotor innehallande en filtreringsanordning enligt uppfinningen, Fig. 2 illustrerar schematiskt uppbyggnaden av en filtreringsanordning enligt en forsta utforingsform av uppfinningen i funktionslage, Fig. 3 visar anordningen enligt fig. 2 vid filterbyte, och Fig. 4 är en fig. 2 motsvarande vy av en filtreringsanordning enligt en andra utforingsform av uppfinningen. 6 537 324 DETALJERAD BESKRIVNING AV UTFORINGSFORMER AV UPPFINNINGEN I Fig 1 visas mycket forenklat ett system for bransleinsprutning i en farbranningsmotor forsett med en uppfinningsenlig inrattning for matning av bransle fran en bransletank 1 via en pump 2 och ett filterhus 3 hos en branslefiltreringsanordning i en lagtrycksdel L till en hogtrycksdel H som begynner med en hogtryckspump 4, som med ett hogt tryck pumpar bransle till en bransleackumulator 5 med munstycken 6 for insprutning av branslet i cylindrarna hos en forbranningsmotor 7 som har är anordnad i ett med 8 indikerat motorfordon. Det är visat hur bransle via en ledning 9 kan ledas ater till bransletanken 1, bl.a. fran filterhuset 3. I praktiken uppvisar ett system enligt fig. 1 betydligt fler komponenter an visade dar, och dess utseende kan vara av mest skiftande slag, da upp- finningen avser anordningar for filtrering av flytande bransle pa dettas vag mellan en bransletank och en forbranningsmotor rent allmant. BRIEF DESCRIPTION OF THE DRAWINGS The following are described as examples of embodiments of the invention with reference to the accompanying drawings, in which: Fig. 1 is a very schematic view illustrating the construction of a fuel supply device from a fuel tank to an internal combustion engine containing a filtration device according to the invention; Fig. 2 schematically illustrates the construction of a filtration device according to a first embodiment of the invention in functional mode, Fig. 3 shows the device according to Fig. 2 when changing filters, and Fig. 4 is a Fig. 2 corresponding view of a filtration device according to a second embodiment of the invention. DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION Fig. 1 shows very simply a system for fuel injection in a combustion engine provided with an inventive device for feeding fuel from a fuel tank 1 via a pump 2 and a filter housing part of a fuel filter assembly. to a high pressure part H beginning with a high pressure pump 4, which with a high pressure pumps fuel to a fuel accumulator 5 with nozzles 6 for injecting the fuel into the cylinders of an internal combustion engine 7 which is arranged in a motor vehicle indicated by 8. It is shown how industry via a line 9 can be led back to the industry tank 1, i.a. from the filter housing 3. In practice, a system according to Fig. 1 has considerably more components than shown there, and its appearance can be of the most varied kind, as the invention relates to devices for filtering liquid fuel on its way between a fuel tank and an internal combustion engine. purely general.

I fig. 2 illustreras schematiskt en anordning enligt en forsta utfo- ringsform av uppfinningen, vilken innefattar ett filterhus 10 med en basdel 11 och ett upptill vid basdelen lostagbart fast lock 12. Basdelen och locket avgransar en filtreringskammare 13 for mottagning av bransle som skall filtreras. En utbytbar filterkassett 14 med ett filterelement 15 är losgorbart monterbar i filtreringskam- maren. Fig. 2 schematically illustrates a device according to a first embodiment of the invention, which comprises a filter housing 10 with a base part 11 and a removable fixed lid 12 at the top of the base part. The base part and the lid define a filtration chamber 13 for receiving fuel to be filtered. . A replaceable filter cassette 14 with a filter element 15 is releasably mountable in the filtration chamber.

Ett inlopp 16 är anordnat i basdelens ovre del far inmatning av bransle till filtreringskammaren via en forsta ledning 17 fran bransletanken. Ett utlopp 18 är anordnat i den nedre delen av 7 537 324 basdelen for utmatning genom filterelementet passerat bransle frail filtreringskammaren till en andra ledning 19 som leder rent filtrerat bransle vidare till forbranningsmotorns insprutningssystem. Darvid nar pa konventionellt satt det filterelementet passerande branslet ett med i sin mantelyta halforsett ror 20 i filtreringskammaren for intrangning dari och ledning till namnda andra ledning 19. An inlet 16 is arranged in the upper part of the base part for feeding fuel into the filtration chamber via a first line 17 from the fuel tank. An outlet 18 is provided in the lower part of the base part for discharge through the filter element passed fuel from the filtration chamber to a second line 19 which leads pure filtered fuel on to the injection system of the internal combustion engine. In this case, when conventionally, the filter element passing through the fuel has a tube 20 half-inserted in its jacket surface in the filtration chamber for penetration therein and line to said second line 19.

En draneringsoppning 21 ar anordnad i botten 22 hos basdelen for tomning av filtreringskammaren pa bransle. Organ i form av en pa undersidan av filterkassetten fast tackdel 23 är utformade att i ett funktionslage hos anordningen enligt fig. 2 tillsluta draneringsoppningen 21. A drainage opening 21 is provided in the bottom 22 of the base part for emptying the filtration chamber on fuel. Means in the form of a roof part 23 fixed to the underside of the filter cassette are designed to close the drainage opening 21 in a functional state of the device according to Fig. 2.

Nu skall det karakteristiska for uppfinningen beskrivas under samtidig hanvisning till fig. 2 och 3. Den uppfinningsenliga anordningen innefattar en behallare 24 anordnad rakt under filterhuset 10, saledes en typ av bottenkavitet hos filterhuset, med en inre volym med formaga att mottaga den mangd bransle filtre- ringskammaren kan innehalla. Behallaren 24 har ett inlopp upptill, vilket är direkt forbundet med filterhusets draneringsoppning 21. Detta betyder att vid upplyftande av filterkassetten 14 ur filterhuset vid filterbyte, som visas i fig. 3, da kommer tackdelen 23 att frilagga draneringsoppningen 21 och i filtreringskammaren befintligt bransle via gravitationen effektivt tommas i behallaren 24. Det smutsiga, tomda branslet indikeras med 26 i fig. 3. Det ar visat hur roret 20 for renat bransle är forlangt via en del 27 igenom behallaren, varvid denna del har en tat mantelyta. 8 537 324 Behallaren 24 uppvisar ett utlopp 28 for tomning av bransle mottaget fran filterhuset i namnda forsta ledning 17 for senare tillforande av detta till filterhuset vid forbranningsmotorns fortsatta drift efter filterbyte. En backventil 29 är anordnad att forhindra att bransle matas in fran den forsta ledningen till behallaren. The characteristic of the invention will now be described with reference to Figs. 2 and 3 at the same time. The device according to the invention comprises a container 24 arranged directly below the filter housing 10, thus a type of bottom cavity of the filter housing, with an internal volume capable of receiving the many filter filters. - the annulus may contain. The container 24 has an inlet at the top, which is directly connected to the drainage opening 21 of the filter housing. This means that when the filter cassette 14 is lifted out of the filter housing during filter change, as shown in Fig. 3, the roof part 23 will expose the drainage opening 21 and existing fuel in the filtration chamber. gravity is effectively emptied into the container 24. The dirty, empty fuel is indicated by 26 in Fig. 3. It is shown how the pipe 20 for purified fuel is required via a part 27 through the container, this part having a tight mantle surface. The container 24 has an outlet 28 for emptying fuel received from the filter housing in said first line 17 for later supply thereof to the filter housing during the continued operation of the internal combustion engine after filter replacement. A non-return valve 29 is arranged to prevent fuel from being fed from the first line to the container.

Fig. 4 visar en anordning enligt en andra utforingsform av uppfinningen, och de delar som finns hos anordningen visad i fig. 2 och 3 är forsedda med samma hanvisningsbeteckningar och kommer inte att beskrivas mer har. Denna anordningen skiljer sig frail den enligt den forsta utforingsformen genom att behallaren 24 är anordnad pa ett ringa avstand, sasom exempelvis tva decimeter, fran filterhuset 10, men med sitt inlopp 25 pa en lagre niva an filterhusets draneringsoppning 21. Foljaktligen är behal- laren forbunden med filterhusets draneringsoppning via en kort ledning 30. Har illustreras vidare tva alternativa satt att tomma behallaren pa, varvid det forsta är genom att forbinda ett utlopp hos behallaren med en ledning 31 for atminstone delvis tomning av behallaren pa bransle i ett karl 32. Det andra alternativet är att forbinda ett utlopp hos behallaren med en ledning 9' for ater- ledning av bransle fran behallaren till bransletanken. Fig. 4 shows a device according to a second embodiment of the invention, and the parts present in the device shown in Figs. 2 and 3 are provided with the same male reference numerals and will not be described further. This device differs from the one according to the first embodiment in that the container 24 is arranged at a small distance, such as for instance two decimetres, from the filter housing 10, but with its inlet 25 at a lower level than the drainage opening 21 of the filter housing 21. Consequently, the container is connected with the drainage opening of the filter housing via a short line 30. Two alternative ways of emptying the container are further illustrated, the first being by connecting an outlet of the container to a line 31 for at least partially emptying the container on a branch in a vessel 32. The second the alternative is to connect an outlet of the tank with a line 9 'for redirection of fuel from the tank to the fuel tank.

Uppfinningen är givetvis inte pa nagot satt begransad till de ovan beskrivna utforingsformerna, utan en mangd mOjligheter till modi- 25 fikationer darav torde vara uppenbara for en fackman pa omradet utan att for den skull avvika fran uppfinningens ram sadan den har definierats i bifogade patentkrav. The invention is of course not limited in any way to the embodiments described above, but a number of possibilities for modifications thereof should be obvious to a person skilled in the art without deviating from the scope of the invention as defined in the appended claims.

Aven om det framgar av beskrivningen ovan papekas att "led-30 ningsorgan for forbindande av draneringsoppningen med namnda 9 537 324 inlopp hos behallaren" i denna avhandling skall tolkas som att draneringsoppningen är forbunden med inloppet pa sadant s5tt att nagot (har branslet) kan ledas daremellan. Dock maste inte nagon fysisk ledning finnas, utan draneringsOppningen kan vara direkt ansluten till inloppet eller t o m bilda inloppet till behalla- ren. Although it is clear from the above description that "conduit means for connecting the drainage opening to the said inlet of the container" in this dissertation is to be interpreted as meaning that the drainage opening is connected to the inlet in such a way that something (has the industry) can be led daremellan. However, there must be no physical line, but the drainage opening can be directly connected to the inlet or even form the inlet to the container.

Claims (14)

537 324 Patentkrav 1. Anordning for filtrering av flytande bransle pa dettas vag mellan en bransletank (1) och en forbranningsmotor (7), vii- ken anordning innefattar:537 324 A device for filtering liquid fuel on its path between a fuel tank (1) and an internal combustion engine (7), which device comprises: 1. ett filterhus (10) med en basdel (11) och ett upptill vid basdelen lostagbart fast lock (12), 2. en av basdelen och locket avgransad filtreringskammare (13) for mottagning av bransle som skall filtreras, • en med ett filterelement (15) forsedd utbytbar filterkas- sett (14) som är losgorbart monterbar i filtreringskammaren, 3. ett inlopp (16) i ovre delen av basdelen for inmatning av bransle till filtreringskammaren, • ett utlopp (18) i den nedre delen av basdelen (11) for utmatning genom filterelementet passerat bransle fran filtreringskammaren (13), 4. en draneringsoppning (21) i botten (22) hos basdelen for tomning av filtreringskammaren pa bransle, • tillslutningsorgan (23) utformade att i ett funktionslage hos anordningen tillsluta draneringsoppningen, och 5. medel utformade att funktionsmassigt forbinda namnda tillslutningsorgan med filterkassetten sa att upplyftande av filterkassetten ut ur basdelen for byte av filterkassett medfor paverkan av tillslutningsorganet (23) att overga till ett draneringsoppningen (21) frilaggande lage for bortledande av i filtreringskammaren (13) befintligt bransle fran basdelen, 11 537 324 kannetecknad clarav, att anordningen innefattar en behallare (24) med en inre volym med formaga att mottaga den mangd bransle filtreringskammaren kan innehalla och vilken är utformad att anordnas med ett inlopp (25) dari pa en lagre niva an draneringsoppningen (21), och att anordningen inne- fattar ledningsorgan (30) for forbindande av draneringsoppningen med namnda inlopp hos behallaren far tomning av i filtreringskammaren (13) befintligt bransle genom gravitationen i behallaren (24) vid urlyftning av filterkassetten (14) ur basdelen.1. a filter housing (10) with a base part (11) and a removable fixed lid (12) at the top of the base part, 2. a filtration chamber (13) delimited from the base part and the lid for receiving fuel to be filtered, • one with a filter element (15) provided with a replaceable filter cassette (14) which is releasably mountable in the filtration chamber, 3. an inlet (16) in the upper part of the base part for feeding fuel to the filtration chamber, • an outlet (18) in the lower part of the base part ( 11) for discharge through the filter element passed fuel from the filtration chamber (13), 4. a drainage opening (21) in the bottom (22) of the base part for emptying the filtration chamber on fuel, • closing means (23) designed to close the drainage opening in a functional state of the device, and 5. means designed to functionally connect said closure means to the filter cassette so that lifting the filter cassette out of the base part for changing the filter cassette causes the closure means (23) to In addition to a drainage opening (21) exposing layer for discharging fuel present in the filtration chamber (13) from the base part, it may be clarified that the device comprises a container (24) with an internal volume capable of receiving the amount of fuel the filtration chamber may contain. and which is designed to be arranged with an inlet (25) therein at a lower level of the drainage opening (21), and that the device comprises conduit means (30) for connecting the drainage opening to said inlet of the container before emptying into the filtration chamber (13). existing fuel by gravity in the container (24) when lifting the filter cassette (14) out of the base part. 2. Anordning enligt krav 1, kannetecknad darav, att namnda ledningsorgan (30), draneringsoppningen (21) och lokaliseringen av behallaren (24) relativt filterhuset (10) är avpas- sade for att vid upplyftande av filterkassetten ur basdelen via gravitationen tomma filtreringskammaren (13) pa bransle inom fern sekunder eller inom tre sekunder fran tidpunkten for startande av namnda upplyftande.Device according to claim 1, characterized in that said conduit means (30), the drainage opening (21) and the location of the container (24) relative to the filter housing (10) are adapted so that when lifting the filter cassette out of the base part via gravity empty the filtration chamber ( 13) in the industry within four seconds or within three seconds from the time of the start of the said promotion. 3. Anordning enligt krav 1 eller 2, kannetecknad darav, att be- hallaren (24) är anordnad med namnda inlopp (25) dari pa ett avstand fran draneringsoppningen (21) av 0-0,5 meter eller 0-0,3 meter.Device according to claim 1 or 2, characterized in that the container (24) is arranged with said inlet (25) therein at a distance from the drainage opening (21) of 0-0.5 meters or 0-0.3 meters . 4. Anordning enligt nagot av foregaende krav, kannetecknad darav, att behallaren (24) är anordnad rakt under basdelen (11).Device according to one of the preceding claims, characterized in that the container (24) is arranged directly below the base part (11). 5. Anordning enligt krav 4, kannetecknad clarav, att en botten (22) hos basdelen (11) bildar ovre begransning av behalla- 1 2 537 324 ren (24) och namnda draneringsoppning (21) mynnar i behallarens inlopp (25).Device according to claim 4, characterized in that a bottom (22) of the base part (11) forms an upper boundary of the container (24) and said drainage opening (21) opens into the inlet (25) of the container. 6. Anordning enligt nagot av foregaende krav, kannetecknad darav, att tillslutningsorganet innefattar en tackdel (23) ut- formad att vara fast pa undersidan av namnda filterkassett (14).Device according to any one of the preceding claims, characterized in that the closing means comprises a roof part (23) designed to be fixed on the underside of said filter cassette (14). 7. Anordning enligt nagot av fOregaende krav, kannetecknad darav, att behallaren (24) uppvisar ett utlopp (28) for at- minstone delvis tomning darav pa bransle mottaget fran filterhuset (10).Device according to one of the preceding claims, characterized in that the container (24) has an outlet (28) for at least partial emptying thereof on fuel received from the filter housing (10). 8. Anordning enligt krav 7, kannetecknad darav, att behalla- rens utlopp (28) är forbundet med en ledning (17) forbunden med namnda inlopp (16) hos filterhusets basdel (11) for tomning av bransle fran behallaren till denna ledning.Device according to claim 7, characterized in that the outlet (28) of the container is connected to a conduit (17) connected to said inlet (16) of the base part (11) of the filter housing for emptying fuel from the container to this conduit. 9. Anordning enligt krav 8, kannetecknad darav, att i behalla- rens utlopp (28) är en backventil (29) anordnad att forhindra att bransle matas in fran namnda ledning (17) till behallaren (24).Device according to claim 8, characterized in that in the outlet (28) of the container a non-return valve (29) is arranged to prevent fuel from being fed from said line (17) to the container (24). 10. Anordning enligt krav 7, kannetecknad darav, att behalla- rens utlopp är forbundet med en ledning (31) for atminstone delvis tomning av behallaren (24) pa bransle i ett karl (32).Device according to claim 7, characterized in that the outlet of the container is connected to a conduit (31) for at least partial emptying of the container (24) on a branch in a vessel (32). 11. Anordning enligt krav 10, kannetecknad darav, att behallarens utlopp är forbundet med en ledning (9') for aterledning av bransle fran behallaren (24) till en namnd bransletank (1). 13 537 324Device according to claim 10, characterized in that the outlet of the container is connected to a line (9 ') for diverting fuel from the container (24) to a named fuel tank (1). 13 537 324 12. Inrattning far matning av bransle fran en bransletank (1) till en hogtrycksdel (H) av ett system far bransleinsprutning i en forbranningsmotor (7), kannetecknad darav, att den innefat- tar en i en lagtrycksdel (L) i en ledning mellan bransletanken och forbranningsmotorn anordnad filtreringsanordning enligt nagot av foregaende krav.A device for feeding fuel from a fuel tank (1) to a high pressure part (H) of a system for fuel injection in an internal combustion engine (7), characterized in that it comprises one in a low pressure part (L) in a line between the fuel tank and the combustion engine arranged filtration device according to any one of the preceding claims. 13. Motorfordon, speciellt hjulburet motorfordon, i synnerhet lastbil eller buss, kannetecknat darav, att det uppvisar en anordning far filtrering av bransle enligt nagot av kraven 111. 14 537 324 1/1 3 16 e/ 12. Ili-•-•*". ..-e - 1 If /V _I I 1 P _1 4:- .k. II 1.- 1. (13. Motor vehicles, in particular wheeled motor vehicles, in particular lorries or buses, characterized in that they have a device for filtering fuel in accordance with any of the requirements of 111. 14 537 324 1/1 3 16 e / 12. Ili- • - • * ". ..- e - 1 If / V _I I 1 P _1 4: - .k. II 1.- 1. ( 14. et .. 4 15•, ..131 / 8 21f:2 is 2Z. 1 9 27 26 264 -±-19 314. et .. 4 15 •, ..131 / 8 21f: 2 is 2Z. 1 9 27 26 264 - ± -19 3
SE1350740A 2013-06-18 2013-06-18 Fuel Filtering Device SE537324C2 (en)

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SE1350740A SE537324C2 (en) 2013-06-18 2013-06-18 Fuel Filtering Device
PCT/SE2014/050698 WO2014204379A1 (en) 2013-06-18 2014-06-10 Fuel filtering device

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Application Number Priority Date Filing Date Title
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SE537324C2 true SE537324C2 (en) 2015-04-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2053032T3 (en) * 1989-10-04 1994-07-16 Mann & Hummel Filter LIQUID FILTER FOR GREASE OIL FROM AN INTERNAL COMBUSTION ENGINE.
DE19626648C2 (en) * 1996-07-03 1998-07-02 Hengst Walter Gmbh & Co Kg filter
US6729310B2 (en) * 2001-02-20 2004-05-04 Charles L. Ekstam Fuel delivery system
US8440081B2 (en) * 2006-08-08 2013-05-14 Cummins Filtration Ip, Inc. Quick drain filter
WO2008022813A1 (en) * 2006-08-25 2008-02-28 Mann+Hummel Gmbh Liquid filter, particularly for motor vehicles

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