EP1481156B1 - Kraftstoff-fördereinheit - Google Patents
Kraftstoff-fördereinheit Download PDFInfo
- Publication number
- EP1481156B1 EP1481156B1 EP03708040A EP03708040A EP1481156B1 EP 1481156 B1 EP1481156 B1 EP 1481156B1 EP 03708040 A EP03708040 A EP 03708040A EP 03708040 A EP03708040 A EP 03708040A EP 1481156 B1 EP1481156 B1 EP 1481156B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- level sensor
- delivery unit
- fuel delivery
- unit according
- 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 - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 53
- 239000002828 fuel tank Substances 0.000 claims abstract description 10
- 235000014676 Phragmites communis Nutrition 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
Images
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
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
Definitions
- the invention relates to a fuel delivery unit, which for arrangement in a fuel tank of a motor vehicle is provided with a swirl pot for collecting Fuel and with a feed pump to pump fuel from the swirl pot to an internal combustion engine of Motor vehicle.
- the swirl pot is arranged at a location in the fuel tank, in which he preferably prefilled at a first filling becomes.
- the swirl pot is filled even if the Fuel tank was drained and a small amount For example, refilled with 5 liters of reserve fuel becomes.
- the invention is based on the problem of a fuel delivery unit of the type mentioned above, that they allow air to enter the internal combustion engine reliably prevents leading lines.
- the Swirl pot a level sensor for detecting the therein contained level of fuel and that the level sensor is designed to control the feed pump.
- the feed pump can be dependent to control from the filling of the swirl pot. hereby it is possible to turn off the pump when the Fuel level in the swirl pot under a designated Limit decreases. This can ensure that the Intake of the pump at any time below the fuel level located. Therefore, even at almost empty Swirl pot reliably prevents air from the feed pump is sucked and leading to the internal combustion engine Lines blocked. In addition, damage to the Feed pump reliably prevented by dry running.
- the level sensor can be according to an advantageous Development of the invention particularly cost-effective, if he has a reed switch. Continue to deliver such reed switch a unique switching signal, which reliably associate with a certain level of fuel leaves.
- the level sensor has according to another advantageous Development of the invention a particularly high stability when he is looking over a subset of the height of the Baffle pot has extending pipe.
- the fuel delivery unit according to the invention can be particularly just mount it when the tube of the level sensor is attached to a lid of the baffle and in protrudes the swirl pot.
- a jamming of the level sensor can be according to a other advantageous development of the invention reliably prevent when a float of the level sensor on the Tube is guided. This also ensures that after switching off the pump, a refill of reserve fuel recorded and the feed pump to be restarted can.
- the level sensor is designed according to another advantageous Development of the invention particularly compact and is particularly simple, if a magnetic switch of Level sensor and the float arranged in the pipe are.
- Sloshing movements of the fuel can affect the level sensor act for a short time and signal faulty that the minimum amount of fuel in the swirl pot falls below is.
- the influence of the sloshing movements of the fuel can be according to another advantageous development Keep the invention particularly low when the tube the level sensor has a throttle opening.
- the throttle opening throttles the flow of air or fuel and thus dampens the movements of the fuel in the Pipe.
- Magnetic fields of a pump driving the electric motor can cause faulty signals from the level sensor have as a consequence.
- the influence of the magnetic fields of the Electric motor on the level sensor can be according to another advantageous embodiment of the invention keep it low, if the level sensor of the Delivery pump is spaced.
- the tube is from arranged the delivery pump spatially separated.
- the control of the driven by the electric motor feed pump requires no extra than the level sensor Components when the level sensor has a switch and is connected directly to the feed pump.
- the inventive Fuel delivery unit with control electronics for the detection of signals of the level sensor and the Control of the pump at least with an emergency program operate.
- control electronics can also be Fluctuations in the fuel level in the swirl pot to capture.
- the level sensor requires no mechanical Damping elements or throttle openings.
- FIG. 1 shows a fuel tank 1 of a motor vehicle with a fuel delivery unit 2 arranged therein to promote fuel.
- the fuel delivery unit 2 has a arranged in a swirl pot 3, electric motor driven feed pump 4.
- the feed pump 4 delivers fuel via a filter 5 arranged in the swirl pot 3 one on a mounting flange 6 of the fuel tank.
- At the connecting piece 7 can be an unillustrated, to an internal combustion engine connect the motor vehicle leading supply line.
- the funded by the pump 4 pressure is from a Pressure regulator 8 limited.
- the feed pump 4 is of a Control electronics 9 via electrical lines 10 with electrical Power supplied.
- the swirl pot 3 is with a lid 11 locked.
- the lid 11 allows air exchange the swirl pot 3 with the remaining areas of the fuel tank 1 and ingress of fuel from above into the Swirl pot 3.
- the swirl pot 3 also has a bottom valve 12 on which fuel penetrate into the swirl pot 3, but can not escape.
- the swirl pot 3 can Of course, in addition to a not shown Suction jet pump to be filled with fuel.
- a Level sensor 13 is arranged.
- the level sensor 13 is also via electrical lines 14 to the control electronics 9 connected and has a on the lid 11 of the Schwall pot 3 attached pipe 15 on.
- a reed switch 16 is arranged, which is a float 17 faces.
- the float 17 carries a magnet 18 and slightly moves with the fuel level in the Swirl pot 3.
- the tube 15 has openings 19, 20 on. These openings 19, 20 can be used as throttle openings be trained to sloshing the fuel to dampen the float 17.
- Figure 2 shows a sectional view through the swirl pot 3 with the fuel delivery unit 2 of Figure 1 along the line II - II, that the tube 15 of the level sensor 13th has a distance from the feed pump 4. This will an influence of the reed switch 16 by electromagnetic Fields of the electric drive of the feed pump 4 prevents. Furthermore, Figure 2 shows that the swirl pot 3 connecting elements 21 for a holder, not shown. Such holders are shown on the one shown in FIG Mounting flange 6 attached and tighten the swirl pot 3 against the bottom of the fuel tank 1 before.
Landscapes
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
- Fig.1
- einen Teilschnitt durch eine erfindungsgemäße, in einem Kraftstoffbehälter montierte KraftstoffFördereinheit,
- Fig.2
- eine Schnittdarstellung durch die erfindungsgemäße Kraftstoff-Fördereinheit aus Figur 1 entlang der Linie II - II.
Claims (10)
- Kraftstoff-Fördereinheit, welche zur Anordnung in einem Kraftstoffbehälter eines Kraftfahrzeuges vorgesehen ist, mit einem Schwalltopf zum Sammeln von Kraftstoff und mit einer Förderpumpe zur Förderung von Kraftstoff aus dem Schwalltopf zu einer Brennkraftmaschine des Kraftfahrzeuges, dadurch gekennzeichnet, dass der Schwalltopf (3) einen Füllstandssensor (13) zur Erfassung des darin enthaltenen Füllstandes an Kraftstoff hat und dass der Füllstandssensor (13) zur Ansteuerung der Förderpumpe (4) ausgebildet ist.
- Kraftstoff-Fördereinheit nach Anspruch 1, dadurch gekennzeichnet, dass der Füllstandssensor (13) einen Reedschalter (16) aufweist.
- Kraftstoff-Fördereinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Füllstandssensor (13) ein sich über einen Teilbereich der Höhe des Schwalltopfes (3) erstreckendes Rohr (15) hat.
- Kraftstoff-Fördereinheit nach Anspruch 3, dadurch gekennzeichnet, dass das Rohr (15) des Füllstandssensors (13) an einem Deckel (11) des Schwalltopfes (3) befestigt ist und in den Schwalltopf (3) hineinragt.
- Kraftstoff-Fördereinheit nach zumindest einem der vorhergehenden Ansprüche 3 oder 4, dadurch gekennzeichnet, dass ein Schwimmer (17) des Füllstandssensors (13) an dem Rohr (15) geführt ist.
- Kraftstoff-Fördereinheit nach Ansprüche 2, 3 und 5 dadurch gekennzeichnet, dass der Reedschalter (16) des Füllstandssensors (13) und der Schwimmer (17) in dem Rohr (15) angeordnet sind.
- Kraftstoff-Fördereinheit nach zumindest einem der vorhergehenden Ansprüche 3 bis 6, dadurch gekennzeichnet, dass das Rohr (15) des Füllstandssensors (13) eine Drosselöffnung (19, 20) aufweist.
- Kraftstoff-Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Füllstandssensor (13) von der Förderpumpe (4) beabstandet ist.
- Kraftstoff-Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Füllstandssensor (13) einen Reedschalter (16) aufweist und unmittelbar mit der Förderpumpe (4) verbunden ist.
- Kraftstoff-Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Steuerelektronik (9) zur Erfassung von Signalen des Füllstandssensors (13) und zur Ansteuerung der Förderpumpe (4).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10208824 | 2002-03-01 | ||
DE10208824A DE10208824A1 (de) | 2002-03-01 | 2002-03-01 | Kraftstoff-Fördereinheit |
PCT/DE2003/000509 WO2003074863A1 (de) | 2002-03-01 | 2003-02-18 | Kraftstoff-fördereinheit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1481156A1 EP1481156A1 (de) | 2004-12-01 |
EP1481156B1 true EP1481156B1 (de) | 2005-07-13 |
Family
ID=27740522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03708040A Expired - Lifetime EP1481156B1 (de) | 2002-03-01 | 2003-02-18 | Kraftstoff-fördereinheit |
Country Status (6)
Country | Link |
---|---|
US (1) | US7036488B2 (de) |
EP (1) | EP1481156B1 (de) |
AT (1) | ATE299554T1 (de) |
DE (2) | DE10208824A1 (de) |
ES (1) | ES2244923T3 (de) |
WO (1) | WO2003074863A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7261323B2 (en) | 2005-03-31 | 2007-08-28 | Nissan Technical Center North America, Inc. | Fuel damper |
US7377162B2 (en) * | 2005-06-28 | 2008-05-27 | Keurig, Incorporated | Method and apparatus for liquid level sensing |
KR20130139986A (ko) | 2011-01-20 | 2013-12-23 | 페더럴-모걸 코오포레이숀 | 장치 외부에 있는 선박 연료 증기 분리기용 연료 수준 센서 |
DE102020120492A1 (de) | 2020-08-04 | 2022-02-10 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Steuern einer Betriebsmittelpumpe, Betriebsmittelbehälter und Kraftfahrzeug |
DE102022100839A1 (de) | 2022-01-14 | 2023-07-20 | Bayerische Motoren Werke Aktiengesellschaft | Betriebsmittelbehälter und Kraftfahrzeug |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4253332A (en) * | 1979-08-30 | 1981-03-03 | Flowtron Industries, Inc. | Sealed flow meter for in-tank installation |
US4441860A (en) * | 1982-03-01 | 1984-04-10 | Haruo Tsujimoto | Water level detector apparatus of float type |
JP2602709B2 (ja) | 1988-12-12 | 1997-04-23 | 本田技研工業株式会社 | 車両用燃料供給装置 |
US4974570A (en) * | 1989-05-05 | 1990-12-04 | Carter Automotive Company, Inc. | Fuel supply module |
US5080077A (en) * | 1990-06-01 | 1992-01-14 | General Motors Corporation | Modular fuel delivery system |
DE4435508A1 (de) * | 1994-10-04 | 1996-04-11 | Bosch Gmbh Robert | Vorrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs |
DE19531424A1 (de) | 1995-08-26 | 1997-02-27 | Bosch Gmbh Robert | Kraftstoffördereinrichtung |
DE19547097A1 (de) * | 1995-12-16 | 1997-06-19 | Audi Ag | Vorrichtung zur Versorgung einer Brennkraftmaschine mit Kraftstoff |
US5979485A (en) | 1996-07-01 | 1999-11-09 | Walbro Corporation | Fuel tank level equalizer system |
-
2002
- 2002-03-01 DE DE10208824A patent/DE10208824A1/de not_active Withdrawn
-
2003
- 2003-02-18 ES ES03708040T patent/ES2244923T3/es not_active Expired - Lifetime
- 2003-02-18 AT AT03708040T patent/ATE299554T1/de not_active IP Right Cessation
- 2003-02-18 US US10/506,307 patent/US7036488B2/en not_active Expired - Fee Related
- 2003-02-18 EP EP03708040A patent/EP1481156B1/de not_active Expired - Lifetime
- 2003-02-18 DE DE50300770T patent/DE50300770D1/de not_active Expired - Lifetime
- 2003-02-18 WO PCT/DE2003/000509 patent/WO2003074863A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ES2244923T3 (es) | 2005-12-16 |
US7036488B2 (en) | 2006-05-02 |
US20050103314A1 (en) | 2005-05-19 |
DE50300770D1 (de) | 2005-08-18 |
WO2003074863A1 (de) | 2003-09-12 |
EP1481156A1 (de) | 2004-12-01 |
DE10208824A1 (de) | 2003-09-11 |
ATE299554T1 (de) | 2005-07-15 |
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