EP1527269A1 - Saugstrahlpumpe - Google Patents
SaugstrahlpumpeInfo
- Publication number
- EP1527269A1 EP1527269A1 EP03792114A EP03792114A EP1527269A1 EP 1527269 A1 EP1527269 A1 EP 1527269A1 EP 03792114 A EP03792114 A EP 03792114A EP 03792114 A EP03792114 A EP 03792114A EP 1527269 A1 EP1527269 A1 EP 1527269A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- jet pump
- pot
- suction jet
- suction
- mixing tube
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
-
- 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
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
-
- 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
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
- F02M37/025—Feeding by means of a liquid fuel-driven jet pump
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/86075—And jet-aspiration type pump
Definitions
- the invention relates to a suction jet pump with a propulsion jet nozzle, a mixing tube, an intake opening and an intake line connected to it.
- the suction jet pump serves to deliver fuel within a fuel tank or out of a fuel tank in a surge pot, which is arranged inside the fuel tank.
- fuel tanks have a variety of shapes. With the adaptation of the fuel tank to the motor vehicle using the available installation space, fuel tanks are created which are divided into several chambers.
- Chamber can no longer get into the other chamber via the saddle. Since usually only one delivery unit is arranged in a fuel tank, the fuel located in another chamber cannot reach the delivery unit. In these cases, suction jet pumps are used to supply the fuel to the delivery unit in other areas of the power tank or to deliver the fuel at least into the chamber or the area in which the delivery unit is located.
- suction jet pumps are arranged at the bottom of the chambers or the areas of the fuel tank from which the fuel is to be conveyed to the delivery unit. With the arrangement of the suction opening of the suction jet pump on the bottom of the fuel tank, the suction jet pump is always in the fuel and is therefore always ready for operation. Such suction jet pumps pay off with a good one Efficiency.
- the delivery factor i.e. the ratio of the sum jet to the propulsion jet, is at least 7.
- the disadvantage here is that two lines are required with the propellant line to the suction jet pump and the sum line from the suction jet pump, which lines have to be laid and fastened in the fuel tank.
- suction jet pumps which are arranged in the region of the delivery unit.
- a suction line leads from the suction jet pump in the area from which the fuel is to be delivered.
- the suction jet pump has a special jet nozzle to generate the necessary negative pressure in the suction line.
- the outlet opening of the jet nozzle is designed as a slot.
- the propellant jet is fanned out after it emerges from the propellant jet nozzle.
- the fanned-out propulsion jet closes the mixing tube, which creates the necessary vacuum to be able to draw in the fuel via the relatively long intake line.
- the disadvantage of this embodiment is the low delivery factor of the suction suction jet pump, which is approximately 2. This low delivery factor is due to the fanning out of the driving jet after leaving the driving jet nozzle.
- the present invention is therefore based on the object of providing a suction suction jet pump with an improved delivery factor.
- the suction jet pump should also be simple and compact and easy to assemble.
- the suction jet pump according to the invention consists of a propulsion jet nozzle, a mixing tube and one with an intake line connected suction opening, at least part of the mixing tube being arranged in a pot.
- the mixing tube is sealed from the environment due to the medium in the pot. With the sealing of the mixing tube, a negative pressure builds up in the suction jet pump, which enables the medium to be pumped to be drawn in over a long distance.
- the advantage of the invention is that only one line is arranged in the fuel tank with the intake line and that the suction jet pump has a delivery factor like conventional suction jet pumps.
- the arrangement of the suction jet pump is no longer limited to the bottom area of the fuel tank or the surge pot.
- the suction jet pump is advantageously arranged at an angle deviating from the horizontal with respect to its axial extent.
- the angle can be selected depending on the available space in the fuel tank.
- the vertical arrangement of the suction jet pump has proven to be particularly favorable, in which the suction jet pump has an angle to the horizontal of 90 ° with respect to its axial extent.
- This vertical arrangement of the suction jet pump is particularly space-saving. This position enables the suction jet pump to be arranged on or in the surge pot of a delivery unit located in the fuel tank. In this way, a separate attachment of the suction jet pump to the fuel tank can be omitted.
- the suction jet pump with the delivery unit can be preassembled, tested and then attached to the fuel tank in one step.
- only the outlet opening of the mixing tube is in the pot. This enables the pot to be made very flat and thus relatively small.
- the pot is connected to the suction jet pump.
- the pot can be Jet pump, preferably on the mixing tube, be molded.
- the manufacture of the suction jet pump according to the invention is particularly simple if the pot is connected to the suction jet pump by means of a snap-in or plug connection. In this way, the pot forms a unit with the suction jet pump.
- the suction jet pump can therefore be used anywhere.
- connection of the pot and the suction jet pump is advantageous if latching or plug-in elements which engage in one another are present both on the suction jet pump and on the pot.
- the pot and the suction jet pump can be connected particularly easily if the pot has a groove in which a spring formed on the mixing tube engages.
- the suction jet pump can convey into the swirl pot via the upper edge, wherein it is advantageously arranged in the area of the upper edge.
- the previously provided suction openings in the bottom of the baffle are no longer necessary. This also eliminates the valve that closes the opening caused by the suction jet pump when the suction jet pump is not in operation.
- the device according to the invention is particularly simple if the pot is formed by another component or is integrated into this component. So the pot can be arranged on the surge pot.
- the pot is either molded onto the baffle or it is attached to the baffle.
- the baffle used here is particularly simple if part of the bottom is divided, so that this separated area forms the pot.
- the swirl pot can equally well have a molding on its outer wall that forms the pot for the suction jet pump. The advantage of these configurations is that only the suction jet pump has to be installed.
- the invention is explained in more detail using several exemplary embodiments. The figures show in
- Suction jet pump Fig. 3 - 5: different arrangements of the suction jet pump to the pot and Fig. 6, 7: the arrangement of the suction jet pump on one
- a fuel tank 1 consisting of two chambers 2, 3.
- a delivery unit 4 consisting of a baffle 5 and a fuel pump 6 arranged therein, is fastened.
- the fuel delivered by the fuel pump 6 is directed to an internal combustion engine (not shown) via a feed line 7.
- a pot 8 is fastened to the outer wall of the surge pot 5.
- a suction jet pump 9 is arranged in relation to the pot 8 in such a way that its mixing tube 10 projects into the pot.
- Fuel is supplied to the suction jet pump 9 from the fuel pump 6 via a line 11. Another line 11 extends from the suction jet pump 9 into the other chamber 2.
- Fuel is conveyed from the chamber 2 into the chamber 3 or directly into the swirl pot 5 via the line 12.
- the suction jet pump 9 shown in FIGS. 2a-c consists of a drive jet nozzle 13, a mixing tube 14, the suction line 12 and a pot 8.
- a drive jet 15 is fed to the suction jet pump 9 by means of the drive jet line 11.
- the propellant jet 15 exits through the propellant jet nozzle 13 and enters the mixing tube 14.
- the suction line 11 opens into the suction jet pump 9.
- the suction jet pump 9 is arranged perpendicularly with respect to the axial extent of the mixing tube 14. Further- The suction jet pump 9 is arranged towards the pot 8 in such a way that the outlet opening 16 of the mixing tube 14 dips into the pot 8. In the state shown in Fig. 2a, the pot 8 is only slightly filled with fuel.
- the propellant jet 15 passes from the propellant jet nozzle 13 into the pot 8 via the mixing tube 14, as a result of which the propellant jet 15 fills the pot 8.
- the vacuum generated in the suction jet pump 9 is not sufficient to deliver a larger amount of fuel from the chamber 2 via the intake line 11.
- the pot 8 is filled immediately after the suction jet pump 9 starts operating. With the rising fill level in the pot 8, the outlet opening 16 of the mixing tube 14 is flooded, so that there is a liquid seal in the mixing tube 14 and thus in the suction jet pump 9. This situation is shown in Fig. 2b. Because the mixing tube 14 is now completely closed, the propellant jet 15 generates a substantially greater negative pressure, which in turn is sufficient to deliver a larger amount of fuel over a relatively large distance into the pot 8 by means of the suction line 11 according to FIG. 2c.
- the suction jet pump 9 shown in FIG. 3 is connected to the pot 8 via a plug connection.
- a spring 17 is formed on the outside of the mixing tube 14, while the inner wall of the pot 8 has a groove 18 at one point.
- the spring 17 is inserted into the groove 18.
- the suction jet pump 9 is positioned in relation to the pot 8.
- the suction jet pump 9 is arranged eccentrically to the pot 8. In this way, a preferred outflow direction of the fuel from the pot 8 is generated, which, based on the circumference of the pot 8, is opposite to the suction jet pump 9.
- design of the groove base 19 in such a way that the groove base now has a smaller angle than 90 ° with respect to the horizontal arrange the suction jet pump 9 with respect to the axial extension of the mixing tube 14 at an angle deviating from the vertical.
- Fig. 4 shows a further embodiment for the attachments of the suction jet pump 9 to the pot 8.
- locking elements in the form of locking hooks 21 are formed in the area of the outlet opening 16, which cooperate with correspondingly designed locking points 22, which are molded on the pot 8. It is also conceivable to provide the locking hooks 21 on the pot 8, while the mixing tube 14 has the necessary locking points 22.
- the suction jet pump 9 is arranged at an angle of 40 ° to the horizontal with respect to the axial extent of the mixing tube 14.
- the mixing tube 14 is set via a bore 23 in the pot 8.
- the mixing tube 14 is held in position by the bore 23.
- the diameter of the mixing tube 14 and the bore 23 are formed as an interference fit. As a result, the mixing tube 14 is reliably held in its position.
- the bottom of the pot 8 forms the stop for the mixing tube 14 during assembly.
- the pot 8 is not a separate component, but part of the surge pot 5 of the conveyor unit 4.
- a wall 24 is formed on the bottom 23 of the surge pot 5 and forms the pot 8 together with the wall 25 of the surge pot 5 ,
- the mixing pipe 14 projects into the pot 8 with its outlet opening 16. The one from the
- Suction jet pump 9 delivered fuel flows from the pot 8 directly into the baffle 5. From there the fuel is delivered to the internal combustion engine by the fuel pump (not shown).
- Fig. 7 shows a modified form of the arrangement of the suction jet pump according to Fig. 6.
- the pot 8 is at the top of the Baffle 5 attached.
- the pot 8 can be arranged both inside and outside of the surge pot 5.
- the suction jet pump 9 is fastened in a suitable manner in the pot 8.
- the strength of the blowing agent line 11 is achieved by the material of the blowing agent line 11 or by reinforcing elements, for example a wire insert.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Jet Pumps And Other Pumps (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10237050 | 2002-08-09 | ||
DE2002137050 DE10237050B3 (de) | 2002-08-09 | 2002-08-09 | Saugstrahlpumpe |
PCT/DE2003/002166 WO2004018864A1 (de) | 2002-08-09 | 2003-06-30 | Saugstrahlpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1527269A1 true EP1527269A1 (de) | 2005-05-04 |
EP1527269B1 EP1527269B1 (de) | 2012-04-25 |
Family
ID=31895547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030792114 Expired - Fee Related EP1527269B1 (de) | 2002-08-09 | 2003-06-30 | Saugstrahlpumpe |
Country Status (8)
Country | Link |
---|---|
US (1) | US7874811B2 (de) |
EP (1) | EP1527269B1 (de) |
JP (1) | JP2005535830A (de) |
KR (1) | KR20050040916A (de) |
CN (1) | CN100467852C (de) |
BR (1) | BR0313472A (de) |
DE (1) | DE10237050B3 (de) |
WO (1) | WO2004018864A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HUP0400276A2 (hu) * | 2004-01-27 | 2005-10-28 | Visteon Global Technologies, Inc. | Javított indítási tulajdonságokkal rendelkező sugárszivattyú, valamint ilyennel szerelt üzemanyag-továbbító rendszer |
DE102005014287B4 (de) * | 2005-03-24 | 2007-01-25 | Siemens Ag | Fördereinheit |
DE102005014431B3 (de) * | 2005-03-24 | 2006-08-03 | Siemens Ag | Saugstrahlpumpe |
DE102005018469A1 (de) * | 2005-04-21 | 2006-11-02 | Robert Bosch Gmbh | Vorrichtung zum Fördern von Kraftstoff aus einem Kraftstofftank zur Brennkraftmaschine eines Kraftfahrzeuges |
FR2890341B1 (fr) * | 2005-09-02 | 2008-10-24 | Inergy Automotive Systems Res | Systeme a carburant comprenant une reserve a carburant et un bac de retention |
DE102005047468B3 (de) * | 2005-09-30 | 2007-06-14 | Siemens Ag | Ansaugeinheit |
DE102006024456A1 (de) * | 2006-05-24 | 2007-11-29 | Siemens Ag | Saugstrahlpumpe |
JP4715793B2 (ja) * | 2007-03-30 | 2011-07-06 | 株式会社デンソー | ポンプユニット |
JP4821678B2 (ja) * | 2007-03-30 | 2011-11-24 | 株式会社デンソー | ポンプユニット |
US7913670B2 (en) * | 2007-06-18 | 2011-03-29 | Continental Automotive Systems Us, Inc. | Venturi jet structure for fuel delivery module of a fuel tank |
DE102009049799B4 (de) * | 2009-10-16 | 2018-07-12 | Kautex Textron Gmbh & Co. Kg | Kraftstoffbehälter für ein KFZ |
DE102011084682A1 (de) * | 2011-10-18 | 2013-04-18 | Robert Bosch Gmbh | Kraftstoffförder-Vorrichtung mit geneigter Saugstrahlpumpe |
CN103016223B (zh) * | 2012-12-06 | 2016-03-30 | 联合汽车电子有限公司 | 副油泵支架总成 |
DE102016217800B4 (de) * | 2016-09-16 | 2021-12-23 | Vitesco Technologies GmbH | Fluidfördervorrichtung |
DE112019005806B4 (de) * | 2018-11-20 | 2024-01-25 | Walbro Llc | Kraftstoffpumpenanordnung mit elektrischer Motorkraftstoffpumpe und fluidgetriebener Kraftstoffpumpe |
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JPS6268129A (ja) * | 1985-09-18 | 1987-03-28 | Nissan Motor Co Ltd | 燃料タンクの燃料吸込装置 |
DE3602135C1 (de) * | 1986-01-24 | 1992-07-02 | Bayerische Motoren Werke Ag | Lagerung einer Kraftstoffpumpe im Kraftstoffvorratsbehaelter eines Kraftfahrzeuges |
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DE4336060C2 (de) | 1993-10-22 | 2003-06-26 | Siemens Ag | Kraftstoff-Fördereinrichtung für eine Brennkraftmaschine |
DE4343199A1 (de) * | 1993-12-17 | 1995-06-22 | Vdo Schindling | Saugstrahlpumpeneinheit |
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DE10161403B4 (de) * | 2001-12-13 | 2007-03-29 | Siemens Ag | Kraftstofffördereinheit |
JP2003293875A (ja) * | 2002-04-03 | 2003-10-15 | Aisan Ind Co Ltd | リザーブ容器ユニット |
US6705298B2 (en) * | 2002-05-20 | 2004-03-16 | Denso International America, Inc. | Fuel pump module |
DE10229801A1 (de) * | 2002-07-03 | 2004-01-22 | Ti Automotive (Neuss) Gmbh | Saugstrahlpumpe |
JP4051564B2 (ja) * | 2002-10-18 | 2008-02-27 | 株式会社デンソー | 燃料供給装置 |
US6907899B2 (en) * | 2003-01-22 | 2005-06-21 | Visteon Global Technologies, Inc. | Saddle tank fuel delivery system |
-
2002
- 2002-08-09 DE DE2002137050 patent/DE10237050B3/de not_active Expired - Fee Related
-
2003
- 2003-06-30 BR BR0313472A patent/BR0313472A/pt not_active Application Discontinuation
- 2003-06-30 KR KR1020057002177A patent/KR20050040916A/ko not_active Application Discontinuation
- 2003-06-30 CN CNB038192217A patent/CN100467852C/zh not_active Expired - Fee Related
- 2003-06-30 US US10/523,752 patent/US7874811B2/en active Active
- 2003-06-30 EP EP20030792114 patent/EP1527269B1/de not_active Expired - Fee Related
- 2003-06-30 WO PCT/DE2003/002166 patent/WO2004018864A1/de active Application Filing
- 2003-06-30 JP JP2004529696A patent/JP2005535830A/ja active Pending
Non-Patent Citations (1)
Title |
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See references of WO2004018864A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7874811B2 (en) | 2011-01-25 |
WO2004018864A1 (de) | 2004-03-04 |
JP2005535830A (ja) | 2005-11-24 |
DE10237050B3 (de) | 2004-04-15 |
CN1675462A (zh) | 2005-09-28 |
EP1527269B1 (de) | 2012-04-25 |
BR0313472A (pt) | 2005-06-21 |
CN100467852C (zh) | 2009-03-11 |
US20050241621A1 (en) | 2005-11-03 |
KR20050040916A (ko) | 2005-05-03 |
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