EP2257706A1 - Vorrichtung zum fördern von kraftstoff - Google Patents
Vorrichtung zum fördern von kraftstoffInfo
- Publication number
- EP2257706A1 EP2257706A1 EP08872994A EP08872994A EP2257706A1 EP 2257706 A1 EP2257706 A1 EP 2257706A1 EP 08872994 A EP08872994 A EP 08872994A EP 08872994 A EP08872994 A EP 08872994A EP 2257706 A1 EP2257706 A1 EP 2257706A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pot
- jet pump
- suction
- suction jet
- fuel
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 27
- 230000007704 transition Effects 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000002828 fuel tank Substances 0.000 description 7
- 239000003502 gasoline Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F02M37/02—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
- 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
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
Definitions
- the invention relates to a device for conveying fuel according to the preamble of the main claim.
- the device according to the invention with the characterizing features of the main claim has the advantage that the flow turbulence is reduced and the suction of the suction jet pump is increased by the decrease in gas bubble formation by provided at the bottom of the reservoir cup in the suction chamber at the transition into the mixing duct, a sloping ramp for low-turbulence flow guidance is.
- the intake opening and the entrance into the mixing channel are arranged in different planes, which are realized by means of the invention
- Inclined ramp are interconnected. Due to the lower flow turbulences in the suction jet pump arise when heated fuel fewer bubbles in the fuel, so that more fuel is conveyed into the storage tank.
- the oblique ramp goes continuously into the bottom of the pot. In this way, flow turbulences are avoided, so that with the same propulsion jet quantity a larger intake capacity is achieved.
- Suction jet pump are executed, wherein the suction chamber is open to the bottom of the pot.
- a closed chamber is achieved in this way, which is flow-connected via the suction port to a fuel tank and via the mixing channel with the storage pot.
- the housing of the suction jet pump has a step-shaped transition from the suction chamber into the mixing channel, to which the inclined ramp adjoins.
- the inclined ramp is carried out separately on the bottom of the pot and separately from the housing of the suction jet pump, wherein after the attachment of the housing of the suction jet pump to the bottom of the pot, an inventive suction jet pump is formed with a substantially continuous transition from the suction chamber into the mixing channel.
- the inclined ramp is made in one piece on the bottom of the pot pot, since the inclined ramp can be produced in this way particularly cost by injection molding together with the storage pot.
- the pot bottom of the storage cup therefore has a bevel formed on it.
- the housing of the suction jet pump can be fixed by means of holding means on the bottom of the pot.
- a receptacle for fixing the suction jet pump is provided on the bottom of the pot, since the housing of the suction jet pump in this way is particularly easy to attach to the bottom of the pot pot.
- Suction jet pump and Figure 2 shows a detail of the pot bottom of the storage cup of Figure 1.
- Fig.l shows in section a device for conveying fuel with a suction jet pump according to the invention.
- the device for conveying fuel is arranged in a fuel tank 1 and conveyed by means of a delivery unit 2 fuel from the fuel tank 1 druckerhöht via a pressure line 3 to an internal combustion engine 4.
- the delivery unit 2 is arranged in a storage pot 5, which is sufficient for the delivery unit 2 fuel holds, so that it can suck in fuel even at low levels in the fuel tank 1 and when accelerating, braking, cornering and / or climbing.
- the storage pot 5 has a pot bottom 6.
- Pressure line 3 branches off a tether 8, which drives a suction jet pump 9 for actively filling the storage cup 5.
- a pressure regulating valve 10 may be provided, which can only flow off fuel from the pressure line 3 into the tapping line 8 from a predetermined pressure in the pressure line 3.
- a check valve 11 is provided in the pressure line 3, which prevents a backflow of fuel.
- a mixing channel 16 connects, which is arranged in an imaginary extension of the beam output 14, such that a line from the beam output 14 of the drive 8 exiting fluid jet via the suction chamber 15 rectilinearly passes into the mixing channel 16.
- the mixing channel 16 extends horizontally in the direction of the bottom of the pot. 6
- the mode of action of the suction jet pump 9 is sufficiently well known, so that it will be described only briefly here: via the tether 8 and its jet outlet 14, a blowing current is introduced into the suction chamber 15 in the form of a jet.
- the propulsion jet of the haulage line 8 entrains surrounding fuel from the suction chamber 15 into the mixing channel 16, so that a delivery flow is established via the mixing channel 16 into the storage pot 5.
- the suction chamber 15 creates a negative pressure, the fuel via a suction port 17 of the suction chamber 15 from the - A -
- Fuel tank 1 can flow into the suction chamber 15.
- a valve member 18 is provided which cooperates with the Ansaugöffhung 17 and forms with this a check valve.
- the suction chamber 15 and the mixing channel 16 are formed on a housing 19 of the suction jet pump 9, wherein the suction chamber 15 is open to the bottom of the pot 6.
- the part of the housing 19 with the suction chamber 15 is arranged on the bottom of the pot 6 and includes the Ansaugöffhung 17 a. Thereby, a closed suction chamber 15 is reached, which is flow-connected via the suction port 17 to the fuel tank 1 and via the mixing channel 16 with the storage cup 5.
- a portion of the treble line 8 is formed, which opens into the suction chamber 15 with the narrowed jet outlet 14.
- an oblique ramp 20 for low-turbulence flow guidance is provided on the bottom of the pot 6 of the reservoir cup 5 within the suction chamber 15 at the transition into the mixing channel 16.
- the oblique ramp 20 reduces the turbulence in the flow, so that less gas bubbles arise within the suction jet pump 9, in particular in so-called hot gasoline.
- the oblique ramp 20 acts as a so-called deflector and deflects the flow with low turbulence.
- the Ansaugöffhung 17 and the bottom of the pot 6 facing lower edge 24 at the suction chamber side entrance 16.1 in the mixing channel 16 are arranged in different planes, wherein the planes are connected to each other by means of the oblique ramp 20.
- the ramp ramp 20 rises substantially continuously from the plane with the Ansaugöffhung 17 to the plane with the lower edge 24 at.
- the oblique ramp 20 could also be designed to increase in stages in several stages.
- the oblique ramp 20 is essentially continuous in the bottom of the pot 6.
- the housing 19 of the suction jet pump 9 itself has a step-shaped transition 23 from the suction chamber 15 in the mixing channel 16, wherein the oblique ramp 20 of the pot bottom 6 and the lower edge 24 at the input 16.1 of the mixing channel 16 after attachment of the housing 19 to the pot bottom. 6 essentially steplessly connect to each other. Seen in the flow direction thus includes at the highest point of the oblique ramp 20 of the mixing channel 16 with the lower edge 24, wherein at the transition between the oblique ramp 20 and the mixing channel 16, a connection gap 21 is formed.
- the wall thickness of the pot bottom 6 in the region of the oblique ramp 20 is approximately the same as in the rest of the pot bottom. 6
- the oblique ramp 20 is integrally formed on the bottom of the pot 6
- the oblique ramp 20 could also be a separate part, the am Pot bottom 6 or attached to the housing 19 of the suction jet pump 9. Likewise, it may be provided to form the oblique ramp 20 in one piece on the housing 19 of the suction jet pump 9.
- the housing 19 is fixed by means of holding means 28 on the bottom of the pot 6.
- a receptacle 27 for the part of the housing 19 with the suction chamber 15 is provided on the bottom of the pot 6 of the storage pot 5.
- the receptacle 27 is adapted to the shape of the suction chamber 15, so that the housing 19 can be inserted with the suction chamber 15 in the receptacle 27.
- the suction jet pump 9 is fixed in the receptacle 27 by means of the holding means 28, for example, locked.
- the receptacle 27 surrounds the suction opening 17th
- a coarse filter 30 is formed, which filters the sucked by the suction jet 9 fuel upstream of the suction port 17.
- FIG. 2 shows a section of the pot bottom of the storage cup of Fig.l.
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)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008000437A DE102008000437A1 (de) | 2008-02-28 | 2008-02-28 | Vorrichtung zum Fördern von Kraftstoff |
PCT/EP2008/067870 WO2009106185A1 (de) | 2008-02-28 | 2008-12-18 | Vorrichtung zum fördern von kraftstoff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2257706A1 true EP2257706A1 (de) | 2010-12-08 |
EP2257706B1 EP2257706B1 (de) | 2015-02-25 |
Family
ID=40430033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08872994.2A Active EP2257706B1 (de) | 2008-02-28 | 2008-12-18 | Vorrichtung zum fördern von kraftstoff |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110000468A1 (de) |
EP (1) | EP2257706B1 (de) |
CN (1) | CN101960135B (de) |
DE (1) | DE102008000437A1 (de) |
WO (1) | WO2009106185A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8726886B2 (en) * | 2011-08-24 | 2014-05-20 | Robert Bosch Gmbh | Fuel supply system and anti-siphon jet pump |
DE102012200588A1 (de) * | 2012-01-17 | 2013-07-18 | Robert Bosch Gmbh | Vorrichtung zum Fördern von Kraftstoff |
DE102012210234A1 (de) | 2012-06-18 | 2013-12-19 | Robert Bosch Gmbh | Reservoir mit Klappenventil |
DE102012210995A1 (de) | 2012-06-27 | 2014-01-02 | Robert Bosch Gmbh | Saugstrahlpumpe mit integriertem Filtermodul |
BR112015024695B1 (pt) | 2013-03-27 | 2023-02-28 | Scania Cv Ab | Trem de potência híbrido que compreende motor de combustão, veículo, método para controlar trem de potência híbrido e meio legível por computador |
JP6331980B2 (ja) | 2014-11-06 | 2018-05-30 | 株式会社デンソー | 燃料供給装置 |
CN104791160A (zh) * | 2015-04-30 | 2015-07-22 | 安徽江淮汽车股份有限公司 | 一种燃油箱输油管路装置 |
DE112019005806B4 (de) * | 2018-11-20 | 2024-01-25 | Walbro Llc | Kraftstoffpumpenanordnung mit elektrischer Motorkraftstoffpumpe und fluidgetriebener Kraftstoffpumpe |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4860714A (en) * | 1986-08-20 | 1989-08-29 | Whitehead Engineered Products, Inc. | In-tank fuel pump assembly for fuel-injected engines |
DE3719809C1 (de) * | 1987-06-13 | 1988-06-09 | Daimler Benz Ag | Stautopf fuer Kraftstoffbehaelter |
DE4238040A1 (de) * | 1992-11-11 | 1994-05-19 | Vdo Schindling | Saugstrahlpumpe zum Fördern von Kraftstoff |
US5330475A (en) | 1993-11-29 | 1994-07-19 | General Motors Corporation | Modular fuel sender for motor vehicle |
US5452701A (en) * | 1994-05-23 | 1995-09-26 | Walbro Corporation | Turbine fuel pump with fuel jet |
DE19530423C2 (de) * | 1995-08-18 | 1999-06-02 | Mannesmann Vdo Ag | Saugstrahlpumpe für den Einsatz in einem Kraftstofftank |
US6058911A (en) * | 1997-04-07 | 2000-05-09 | Nissan Motor Co., Ltd. | Fuel chamber for automotive vehicle |
JP3114095B2 (ja) * | 1997-10-21 | 2000-12-04 | 矢嶋工業株式会社 | 燃料タンクのリザーバカップ |
JP3562558B2 (ja) * | 1997-11-25 | 2004-09-08 | 株式会社ニフコ | 旋回槽構造 |
ES2238240T3 (es) * | 1999-11-23 | 2005-09-01 | Siemens Aktiengesellschaft | Unidad de alimentacion dispuesta en una cubeta de chapoteo de un deposito de combustible de un vehiculo de motor. |
EP1258679A4 (de) * | 2000-01-31 | 2005-04-27 | Sharp Kk | Brennvorrichtung für flüssigen brennstoff |
FR2818320B1 (fr) * | 2000-12-14 | 2003-07-04 | Marwal Systems | Dispositif de puisage de carburant pour reservoir de vehicule automobile |
DE10138838B4 (de) * | 2001-08-14 | 2006-01-26 | Siemens Ag | In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges anzuordnende Fördereinheit |
US6857859B2 (en) * | 2003-02-19 | 2005-02-22 | Siemens Vdo Automotive Corporation | Gasket for jet pump assembly of a fuel supply unit |
DE102004007319A1 (de) * | 2004-02-14 | 2005-08-25 | Robert Bosch Gmbh | Vorrichtung zum Fördern von Kraftstoff |
WO2007133412A1 (en) * | 2006-05-01 | 2007-11-22 | Continental Automotive Systems Us, Inc. | Fuel pump with inner channel priming |
EP1911962A1 (de) * | 2006-09-29 | 2008-04-16 | Inergy Automotive Systems Research (SA) | Einstückige Doppestrahlpunpe und diese verwendes Kraftstoffsystem |
-
2008
- 2008-02-28 DE DE102008000437A patent/DE102008000437A1/de not_active Withdrawn
- 2008-12-18 EP EP08872994.2A patent/EP2257706B1/de active Active
- 2008-12-18 WO PCT/EP2008/067870 patent/WO2009106185A1/de active Application Filing
- 2008-12-18 US US12/919,868 patent/US20110000468A1/en not_active Abandoned
- 2008-12-18 CN CN200880127509.5A patent/CN101960135B/zh active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009106185A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20110000468A1 (en) | 2011-01-06 |
WO2009106185A1 (de) | 2009-09-03 |
DE102008000437A1 (de) | 2009-09-03 |
CN101960135A (zh) | 2011-01-26 |
EP2257706B1 (de) | 2015-02-25 |
CN101960135B (zh) | 2013-06-19 |
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