DE2822640C2 - Fuel system with fuel circulation for automobiles - Google Patents
Fuel system with fuel circulation for automobilesInfo
- Publication number
- DE2822640C2 DE2822640C2 DE2822640A DE2822640A DE2822640C2 DE 2822640 C2 DE2822640 C2 DE 2822640C2 DE 2822640 A DE2822640 A DE 2822640A DE 2822640 A DE2822640 A DE 2822640A DE 2822640 C2 DE2822640 C2 DE 2822640C2
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- filter
- outlet opening
- line
- return line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000446 fuel Substances 0.000 title claims description 38
- 238000007654 immersion Methods 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
- B01D35/0273—Filtering elements with a horizontal or inclined rotation or symmetry axis submerged in tanks or reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
- B01D29/904—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding directing the mixture to be filtered on the filtering element in a manner to clean the filter continuously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
-
- 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
- F02M37/50—Filters arranged in or on fuel tanks
Description
4545
Die Erfindung bezieht sich auf eine Kraftstoffanlage der im Oberbegriff des Hauptanspruches angegebenen Art.The invention relates to a fuel system as specified in the preamble of the main claim Art.
Bekannt ist eine solche Kraftstoffanlage aus der DE-OS 24 56 525. Bei dieser Kraftstoffanlage ist die Rücklaufleitung mit ihrer Mündung so angeordnet, daß bei Unterschreiten eines vorbestimmten niedrigen Kraftstoffstandes im Behälter der Strahl des rückfließenden Kraftstoffes auf das Siebfilter auftrifft. Das Siebfilter ist aus Fasern oder Gewebe gebildet zu dem Zweck, den Kraftstoff des etwa radial auftreffenden Strahles großflächig zu verteilen, um bei niedrigem Kraftstoffstand eine ausreichende Abkühlung des anzusaugenden Kraftstoffes zu erzielen.Such a fuel system is known from DE-OS 24 56 525. In this fuel system is the Return line arranged with its mouth so that when falling below a predetermined low Fuel level in the tank, the jet of the returning fuel hits the sieve filter. That Sieve filter is made of fibers or fabric for the purpose of the fuel of the approximately radially impinging To distribute the jet over a large area in order to cool down sufficiently when the fuel level is low To achieve sucked fuel.
Aus dem DE-OM 74 04 007 ist die Anordnung eines Filters in Kraftstoffleitungen einer Fahrzeugtankanlage bekannt, wobei durch Beschleunigungen des Fahrzeuges ein Teil des dem Filter zulaufenden Kraftstoffes quer zur Strömungsrichtung des in das Filter eintretenden Kraftstoffes über die Filterzulaufseite gespült wird. Dabei können Ablagerungen auf der Filterzulaufseite ausgespült werden, wobei die Sauberhaltung des Filters aber wesentlich von der Häufigkeit der Fahrzeugbeschleunigungen und deren Intensitäten abhängt.From DE-OM 74 04 007 the arrangement of a filter in the fuel lines of a vehicle tank system is known, with accelerations of the vehicle flushing some of the fuel flowing into the filter across the flow direction of the fuel entering the filter via the filter inlet side. Deposits on the filter inlet side can be rinsed out, but keeping the filter clean depends largely on the frequency of vehicle accelerations and their intensities.
Der Erfindung liegt die Aufgabe zugrunde, bei einer Kraftstoffanlage der im Operbegriff des Hauptanspruches angegebenen Art eine Filterverschmutzung durch Ablagerungen auf der Filterzulaufsejte von vorn herein zu unterbinden.The invention is based on the object, in the case of a fuel system, of the type in the operative part of the main claim specified type a filter contamination through deposits on the filter inlet side from the start to prevent.
Gelöst ist diese Aufgabe mit dem im Kennzeichen des neuen Hauptanspruches angegebenen Mittel.This problem is solved with the means specified in the characteristic of the new main claim.
Mit der Erfindung wird auf vorteilhaft einfache und billige Weise durch Ausnutzen der Strömungsenergie des rückfließenden Kraftstoffes eine wirksame Reinigung bzw. Sauberhaltung des Ansaugfilters der Kraftstoffanlage erreicht. Das Filter wird dadurch praktisch wartungsfrei, daß der Spülstrahl zudem von gefiltertem Kraftstoff gebildet ist.The invention is advantageously simple and inexpensive by utilizing the flow energy of the returning fuel effective cleaning or keeping the intake filter clean Fuel system reached. The filter is practically maintenance-free because the rinsing jet is also from filtered fuel is formed.
Mit der Erfindung ist sichergestellt, daß auch bei stark verschmutztem Kraftstoff das Filter freigehalten ist von Ablagerungen und somit Störungen der Kraftstoff-Förderung vermieden sind.With the invention it is ensured that even with strong contaminated fuel the filter is kept free of deposits and thus disruptions to fuel delivery are avoided.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in weiteren Unteransprüchen angegeben.Further advantageous refinements of the invention are given in further subclaims.
Im folgenden werden Ausführungsbeispiele der Erfindung anhand der Zeichnung beschrieben. Die Zeichnung zeigt inIn the following, exemplary embodiments of the invention are described with reference to the drawing. the Drawing shows in
F i g. 1 einen Tauchrohrgeber mit Flachfilter, auf den ein Rohrkrümmer der Rücklaufleitung gerichtet ist,F i g. 1 an immersion tube sensor with a flat filter, towards which an elbow of the return line is directed,
Fig.2 einen abschnittsweise dargestellten Tauchrohrgeber mit Flachfilter, in dessen Gehäuse der Spülkanal eingeformt ist2 shows an immersion tube transmitter shown in sections with flat filter, in the housing of which the flushing channel is molded
Die Fig. I zeigt von einer Kraftstoffanlage mit Kraftstoffumlauf einen lediglich abschnittsweise dargestellten Kraftstoffbehälter 1 für einen nicht aufgezeigten PKW. Der Kraftstoffbehälter 1 ist mit einem Tauchrohrgeber 2 zur Kraftstoff-Vorratsmessung ausgerüstet. Im Tauchrohrgeber 2 sind Abschnitte einer Kraftstoff-Zulaufleitung 3 und einer Kraftstoff-Rücklaufleitung 4 integriert. Die Zulaufleitung 3 steht ansaugseitig mit einem als Flachfilter ausgebildeten Filter 5 in Verbindung, das am unteren Ende des Tauchrohrgebers 2 vorgesehen istFig. I shows a fuel system with Fuel circulation is a fuel tank 1, shown only in sections, for a not shown Car. The fuel tank 1 is equipped with a dip tube sensor 2 for measuring the fuel supply. Sections of a fuel supply line 3 and a fuel return line 4 are located in the immersion tube transmitter 2 integrated. The inlet line 3 is on the suction side in connection with a filter 5 designed as a flat filter, which is provided at the lower end of the immersion tube sensor 2
Wie aus F i g. 1 weiter hervorgeht, ist das die Rücklaufleitung 4 bildende Rohr in eine Durchbrechung 6 in einem Boden 7 des Tauchrohrgebers 2 eingeführt. An das freie Ende der Rücklaufleitung 4 schließt sich ein Rohrkrümmer 8 an. Die um den Rohrkrümmer 8 verlängerte Rücklaufleitung 4 ist mit ihrer Austrittsöffnung 9 auf die Zuströmseite 10 des Filters 5 gerichtet Die von der Mündung- des Rohrkrümmers 8 gebildete Austrittsöffnung 9 ist derart angeordnet, daß ein zur Strömungsrichtung des angesaugten Kraftstoffes (Pfeil A)quer gerichteter Spülstrom (Pfeil ß^erzieltist.As shown in FIG. 1, the tube forming the return line 4 is inserted into an opening 6 in a base 7 of the immersion tube transmitter 2. A pipe bend 8 connects to the free end of the return line 4. The return line 4, which is lengthened around the pipe bend 8, has its outlet opening 9 directed towards the inflow side 10 of the filter 5. The outlet opening 9 formed by the mouth of the pipe bend 8 is arranged in such a way that a flushing flow is directed transversely to the flow direction of the sucked fuel (arrow A) (Arrow ß ^ is achieved.
Die von der Mündung des Rohrkrümmers 8 begrenzte Austrittsöffnung 9 kann von kreisförmiger Gestalt sein, Die Austrittsöffnung 9 kann aber auch schlitzartig gestaltet sein, wenn der Rohrkrümmer 8 an seiner Mündung zu einer Flachstrahldüse geformt ist.The outlet opening 9 delimited by the mouth of the pipe bend 8 can be circular The outlet opening 9 can also be designed like a slot if the pipe bend 8 is on its mouth is shaped into a flat jet nozzle.
Der in Fig.2 lediglich abschnittsweise dargestellte Tauchrohrgeber 11 kann wie der Tauchrohrgeber 2 in Fig. 1 beschaffen sein. Auch bei diesem Tauchrohrgeber It ist an seinem unteren Ende ein als Flachfilter ausgebildetes Filter 12 vorgesehen, das mit einer im Tauchrohrgeber 11 integrierten Zulaufleitung 13 der Kraftstoffumlaufanlage in Verbindung steht.The immersion tube transmitter 11 , shown only in sections in FIG. 2, can be designed like the immersion tube transmitter 2 in FIG. 1. In this immersion tube transmitter It, too, a filter 12 designed as a flat filter is provided at its lower end, which is connected to an inlet line 13 of the fuel circulation system integrated in the immersion tube transmitter 11.
Wie der Fig.2 zu entnehmen ist, steht hierbei die Kraftstoff-Rücklaufleitung 14 mit einem Kanal IS in Verbindung, der im Gehäuse des Flachfilters 12 ausgebildet ist. Der Kanal 15 verfügt über eine auf dieAs can be seen from FIG. 2, this is the Fuel return line 14 with a channel IS in connection, which in the housing of the flat filter 12 is trained. The channel 15 has one on the
Zuströmseite 16 des Filters \2 gerichtete Austrittsöffnung 17, es können aber auch mehrere Austrittsöffnungen vorgesehen sein. Diese können zudem zueinander verschieden gerichtet sein, so daß das Filter 12 auf seiner Zuströmseite 16 von mehreren Strahlen aus zurücklaufenden Kraftstoff bespült istOutlet opening 17 directed towards the inflow side 16 of the filter 2 , but several outlet openings can also be provided. These can also be directed differently to one another, so that the filter 12 is flushed on its inflow side 16 by several jets of returning fuel
Ist die Austrittsöffnung 17 die Mündung einer Flachstrahldüse, kann in dem Kanal 15 ein FIuidik-Element vorgesehen sein, das einen stoßweise austretenden und ständig die Richtung wechselnden Strahl zum Reinigen des Filters 12 bewirkt.If the outlet opening 17 is the mouth of a flat jet nozzle, a fluidic element can be in the channel 15 be provided that an intermittently exiting and constantly changing direction beam to Cleaning the filter 12 causes.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2822640A DE2822640C2 (en) | 1978-05-24 | 1978-05-24 | Fuel system with fuel circulation for automobiles |
FR7910381A FR2426626A1 (en) | 1978-05-24 | 1979-04-24 | FUEL SUPPLY SYSTEM, WITH FUEL RECYCLING, FOR MOTOR VEHICLES |
IT22791/79A IT1112910B (en) | 1978-05-24 | 1979-05-18 | FUEL SYSTEM WITH FUEL CIRCULATION FOR MOTOR VEHICLES |
GB7917604A GB2021431B (en) | 1978-05-24 | 1979-05-21 | Fuelinstallation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2822640A DE2822640C2 (en) | 1978-05-24 | 1978-05-24 | Fuel system with fuel circulation for automobiles |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2822640B1 DE2822640B1 (en) | 1979-12-06 |
DE2822640C2 true DE2822640C2 (en) | 1980-08-07 |
Family
ID=6040088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2822640A Expired DE2822640C2 (en) | 1978-05-24 | 1978-05-24 | Fuel system with fuel circulation for automobiles |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2822640C2 (en) |
FR (1) | FR2426626A1 (en) |
GB (1) | GB2021431B (en) |
IT (1) | IT1112910B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19921547C2 (en) * | 1999-05-11 | 2001-05-10 | Mannesmann Vdo Ag | Fuel withdrawal device |
CN108861680A (en) * | 2018-07-04 | 2018-11-23 | 赵全 | A kind of energy-saving and environment-friendly activated coke discharging dust controlling device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE823821C (en) * | 1949-09-16 | 1951-12-06 | Daimler Benz Ag | Fluid filters, especially for the lubricating oil circuit of internal combustion engines |
GB757721A (en) * | 1953-07-29 | 1956-09-26 | Havilland Engine Co Ltd | Fuel supply systems for liquid fuel engines |
DE1093234B (en) * | 1958-04-18 | 1960-11-17 | Daimler Benz Ag | Device in the fuel tank for internal combustion engines, in particular for motor vehicles |
US3675772A (en) * | 1970-12-02 | 1972-07-11 | Alexandr Ivanovich Zhukovsky | Fuel-feed system for an aircraft engine |
US3900397A (en) * | 1974-06-10 | 1975-08-19 | Kuss & Co R L | Fuel tank filter |
DE2456525C3 (en) * | 1974-11-29 | 1980-08-07 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Fuel tank with bulkheads |
-
1978
- 1978-05-24 DE DE2822640A patent/DE2822640C2/en not_active Expired
-
1979
- 1979-04-24 FR FR7910381A patent/FR2426626A1/en active Granted
- 1979-05-18 IT IT22791/79A patent/IT1112910B/en active
- 1979-05-21 GB GB7917604A patent/GB2021431B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2021431B (en) | 1982-09-15 |
GB2021431A (en) | 1979-12-05 |
IT1112910B (en) | 1986-01-20 |
FR2426626B1 (en) | 1984-03-23 |
FR2426626A1 (en) | 1979-12-21 |
IT7922791A0 (en) | 1979-05-18 |
DE2822640B1 (en) | 1979-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |