EP0694691A1 - Dispositif d'alimentation de combustible d'un réservoir vers un moteur à combustion interne d'un véhicle automobile - Google Patents

Dispositif d'alimentation de combustible d'un réservoir vers un moteur à combustion interne d'un véhicle automobile Download PDF

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Publication number
EP0694691A1
EP0694691A1 EP95110247A EP95110247A EP0694691A1 EP 0694691 A1 EP0694691 A1 EP 0694691A1 EP 95110247 A EP95110247 A EP 95110247A EP 95110247 A EP95110247 A EP 95110247A EP 0694691 A1 EP0694691 A1 EP 0694691A1
Authority
EP
European Patent Office
Prior art keywords
storage container
opening
jet nozzle
fuel
jet
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
Application number
EP95110247A
Other languages
German (de)
English (en)
Other versions
EP0694691B1 (fr
Inventor
Stephan Dipl.-Ing. Kleppner
Kurt Dipl.-Ing. Frank (Ba)
Ansgar Dipl.-Ing. Seitz
Hannelore Scheerer
Günter-Paul Ballier
Rolf Dipl.-Ing. Fischerkeller
Wolfgang Wuerl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0694691A1 publication Critical patent/EP0694691A1/fr
Application granted granted Critical
Publication of EP0694691B1 publication Critical patent/EP0694691B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M37/02—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

Definitions

  • the invention is based on a device for delivering fuel from a storage container to the internal combustion engine of a motor vehicle according to the preamble of claim 1.
  • Such a device is known from DE 35 00 718.
  • This device has a storage container arranged in the storage container, from which a fuel delivery unit draws in and delivers fuel to the internal combustion engine. Fuel that is not consumed by the internal combustion engine is returned to the storage container via a return line.
  • a jet pump is connected to the return line, which pumps fuel into the storage container.
  • the amount of fuel flowing back through the return line fluctuates considerably depending on the operating state of the internal combustion engine.
  • the amount of fuel flowing back is very low when the internal combustion engine is operating at full load, while it is very large when the internal combustion engine is idling.
  • the pressure of the jet pump and that of the jet pump in the storage tank also fluctuates amount of fuel delivered significantly, so that the jet container does not properly fill the storage container in all operating states of the internal combustion engine.
  • the device according to the invention for conveying fuel from a reservoir to the internal combustion engine of a motor vehicle with the features of claim 1 has the advantage that the pressure in the jet pump is kept at least almost constant by the overflow valve and thus independent of the fuel quantity flowing back through the return line Storage container is properly filled by the jet pump.
  • the integration of the jet pump in the storage container according to claim 6 enables a particularly simple structure of the jet pump.
  • the features according to claim 7 allow a simple structure of the overflow valve.
  • the features according to claim 8 enable simple assembly of the jet nozzle, since it can be installed in any rotational position, the annular groove always ensuring a connection of the overflow opening to the nozzle.
  • FIG. 1 shows a device for conveying fuel from a storage container to the internal combustion engine of a motor vehicle in a simplified representation
  • FIG. 2 shows a jet pump with a storage container of the device from FIG. 1 according to a first exemplary embodiment
  • FIG. 3 shows a partial view in arrow direction III in FIG. 2
  • FIG. 4 the jet pump with storage container according to a second exemplary embodiment
  • FIG. 5 a partial view in arrow direction V in FIG. 4.
  • FIG. 1 a device is shown in simplified form in principle, which is used to convey fuel from a storage container 10 to the internal combustion engine 12 of a motor vehicle.
  • a storage container 14 is arranged in the storage container 10, from which a fuel delivery unit 16 sucks, which is arranged in the storage container 14.
  • a pressure line 20, which leads to the internal combustion engine 12, is connected to a pressure connection 18 of the fuel delivery unit 16.
  • a return line 22 also leads from the internal combustion engine 12 back to the storage container 10, through which excess fuel not used by the internal combustion engine 12 flows back into the storage container 12.
  • a jet pump 24, which is arranged within the storage container 10 and through which fuel is conveyed into the storage container 14, is connected to the return line 22.
  • the fuel delivery unit 16 delivers fuel from the storage container 14 to the internal combustion engine 12 and the fuel flowing back through the return line 22 drives the jet pump 24.
  • the storage container 10 and the storage container 14 are only shown in sections, the fuel delivery unit (not shown) being arranged in the storage container 14, and an overflow valve 25 assigned to the jet pump 24 according to a first exemplary embodiment.
  • the preferably made of plastic storage container 14 is arranged near the bottom 11 of the storage container 10 and fastened in the storage container 10 in a manner not shown.
  • a side wall 26 of the stowage container 14 there is an opening 30 close above the bottom 28 thereof, through which the interior of the stowage container 14 with the Storage container 10 is connected.
  • a hollow, approximately cylindrical receptacle 32 is formed in one piece on the storage container 14, which is arranged approximately coaxially with the opening 30 and is circular in cross section, but can also be designed in any other way, for example rectangular.
  • the cross section of the receptacle 32 is larger than that of the opening 30.
  • the storage container 14 has a wall part 34 which extends approximately horizontally above the opening 30.
  • a channel 36 open to the outside into the storage container 10 is formed.
  • a connector 38 protrudes from the wall part 34 into the interior of the storage container 14 and opens into the receptacle 32.
  • the socket 38 is provided with a seat 40 with which a closing member 42, for example in the form of a ball, interacts.
  • the seat 40 is designed to widen conically to the inside of the storage container 14.
  • a guide for the closing member 42 is formed on the seat 40 into the interior of the storage container 14, which is formed by a plurality of webs 43, shown in FIG. 3 and spaced apart from one another over the circumference of the connecting piece 38. The closing member 42 is guided between the webs 43, but fuel can flow through the spaces 44 between the webs when the closing member 42 is lifted off the seat 40.
  • a spring element 46 in the form of a leaf spring is clamped at one end of a carrier 45 projecting into the storage container 14, the other free end of which acts on the closing member 42 and presses it against the seat 40.
  • a spring element 46 in the form of a leaf spring is clamped at one end of a carrier 45 projecting into the storage container 14, the other free end of which acts on the closing member 42 and presses it against the seat 40.
  • an arbitrarily different spring element can also be used for the closing member 42.
  • a jet nozzle 48 of the jet pump 24 can be inserted into the receptacle 32 from the side facing away from the opening 30, which preferably is made of plastic.
  • One end of the jet nozzle 48 with its inlet opening 49 protrudes from the receptacle 32 on the side facing away from the opening 30 and the return line 22 is pushed onto this end.
  • the jet nozzle 48 In its area facing the return line 22, the jet nozzle 48 has the inlet opening 49 with a substantially constant cross section, and in its end area facing the opening 30, the free cross section tapers in the jet nozzle 48.
  • the end of the jet nozzle 48 facing the opening 30 protrudes somewhat out of the receptacle 32 into the channel 36.
  • the area of the jet nozzle 48 from which its cross-section tapers is provided with an overflow opening 54.
  • a circumferential annular groove 56 is formed in the outer periphery of the jet nozzle 48, into which the overflow opening 54 opens and which is arranged with the jet nozzle 48 arranged in the receptacle 32 in such a way that the nozzle 38 opens into it.
  • the annular groove 56 is provided in order to enable simple assembly of the jet nozzle 48 in the receptacle 32, since the connection of the overflow opening 54 to the nozzle 38 is always present through the annular groove 56 regardless of the rotational position of the jet nozzle about its longitudinal axis.
  • the overflow opening 54 forms, together with the spring-loaded closing member 42 which closes the socket 38, the overflow valve 25, through which fuel can flow out of the jet nozzle 48 into the storage container 14 as a relief space if that caused by the fuel flowing back through the return line 22 in the jet nozzle 48 Pressure exceeds a certain value that is sufficient to lift the closing member 42 against the force of the spring element 46 from the seat 40.
  • the receptacle 32 for the jet nozzle 48 is formed in one piece with the storage container 14. The fuel flowing out of the jet nozzle 48 through the overflow valve 25 could instead of into the storage container 14 also flow into the reservoir 10 as a relief space.
  • the fuel emerging from the jet nozzle 48 through the driving nozzle opening 52 carries or travels through the open channel 36 with fuel from the storage container 10, which is conveyed through the opening 30 into the storage container 14, so that there is always enough fuel in the storage container 14 for the fuel delivery unit 16 is available.
  • the fuel flowing out through the overflow valve 25 also reaches the storage container 14, but without additionally carrying fuel from the storage container.
  • FIG. 4 shows a second exemplary embodiment of the overflow valve 125, in which the basic structure of the jet pump 124 and the accumulation container 114 is essentially the same as described above in the first exemplary embodiment.
  • the opening 130 is arranged closely above the bottom 128 thereof, and the receptacle 132 for the jet nozzle 148, which is formed as in the first exemplary embodiment, is arranged on the wall part 134 of the storage container 114.
  • the wall part 134 has an opening 138 through which the interior of the storage container 114 is connected to the receptacle 132.
  • the jet nozzle 148 made of plastic has the inlet opening 149 assigned to the return line 22, the outlet or driving nozzle opening 152 and on its circumference the overflow opening 154, the mouth of which on the outer circumference of the jet nozzle 148 widens conically as a seat 140 for the closing member 142. From the opening 138 project radially inward over their circumference spaced webs 143 shown in FIG. 5, between the ends of which the closing member 142 is guided. When the closing member 142 is lifted from the seat 140, fuel can flow through the spaces 144 between the webs 143 into the storage container 114.
  • the spring element 146 for the closing member 142 is arranged in the storage container 114 and is designed as a leaf spring clamped on one side on the carrier 145 projecting into the storage container 114.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Fuel-Injection Apparatus (AREA)
EP95110247A 1994-07-28 1995-06-30 Dispositif d'alimentation de combustible d'un réservoir vers un moteur à combustion interne d'un véhicle automobile Expired - Lifetime EP0694691B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4426667 1994-07-28
DE4426667A DE4426667A1 (de) 1994-07-28 1994-07-28 Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges

Publications (2)

Publication Number Publication Date
EP0694691A1 true EP0694691A1 (fr) 1996-01-31
EP0694691B1 EP0694691B1 (fr) 1997-09-03

Family

ID=6524310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110247A Expired - Lifetime EP0694691B1 (fr) 1994-07-28 1995-06-30 Dispositif d'alimentation de combustible d'un réservoir vers un moteur à combustion interne d'un véhicle automobile

Country Status (5)

Country Link
US (1) US5564397A (fr)
EP (1) EP0694691B1 (fr)
JP (1) JPH0849615A (fr)
KR (1) KR100387755B1 (fr)
DE (2) DE4426667A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000000733A1 (fr) * 1998-06-29 2000-01-06 Robert Bosch Gmbh Dispositif pour assurer une alimentation en carburant au moyen d'une unite d'alimentation en carburant
EP1103717A1 (fr) * 1999-11-23 2001-05-30 Mannesmann VDO AG Pompe disposée dans le réceptacle d'un réservoir de carburant d'un véhicule
WO2003102408A1 (fr) * 2002-06-04 2003-12-11 Robert Bosch Gmbh Regulateur de pression pour systeme d'alimentation en carburant d'un moteur a combustion interne

Families Citing this family (35)

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Publication number Priority date Publication date Assignee Title
DE4332717C2 (de) * 1992-12-02 1998-07-23 Mannesmann Vdo Ag Druckbegrenzungsventil zur Anordnung innerhalb eines Kraftstofftanks
DE19549192A1 (de) * 1995-12-30 1997-07-03 Bosch Gmbh Robert Einrichtung zum Fördern von Kraftstoff aus einem Vorratstopf zur Brennkraftmaschine eines Kraftfahrzeuges
DE19618454B4 (de) * 1996-05-08 2005-01-27 Robert Bosch Gmbh Kraftstoffördereinrichtung eines Kraftfahrzeuges
DE19618647A1 (de) * 1996-05-09 1997-11-13 Bosch Gmbh Robert Vorrichtung zum Versorgen einer Brennkraftmaschine mit Kraftstoff aus einem Vorratsbehälter
US6058911A (en) * 1997-04-07 2000-05-09 Nissan Motor Co., Ltd. Fuel chamber for automotive vehicle
DE19736088A1 (de) 1997-08-20 1999-02-25 Bosch Gmbh Robert Vorrichtung zum Fördern von Kraftstoff
DE19752963C1 (de) * 1997-11-28 1999-04-08 Bosch Gmbh Robert Regelventil für Strahlpumpe
DE19805072C2 (de) * 1998-02-09 1999-11-11 Bosch Gmbh Robert Kraftstoffördermodul
DE19805071C1 (de) * 1998-02-09 1999-08-19 Bosch Gmbh Robert Kraftstoffördermodul
DE19808719C1 (de) 1998-03-02 1999-09-23 Bosch Gmbh Robert Tank für ein Kraftfahrzeug und Flansch für einen solchen Tank
DE19813172A1 (de) * 1998-03-25 1999-09-30 Bosch Gmbh Robert Kraftstoff-Fördermodul mit Erstbefüllventil
DE19827060A1 (de) * 1998-06-18 1999-12-23 Bosch Gmbh Robert Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs
IT1306319B1 (it) * 1998-07-16 2001-06-04 Magneti Marelli Spa Gruppo di alimentazione di carburante ad un motore endotermico
US6405717B1 (en) * 2000-08-01 2002-06-18 Delphi Technologies, Inc. Fuel pump module assembly
US6230691B1 (en) * 2000-08-02 2001-05-15 Delphi Technologies, Inc. Secondary fuel pump assembly for a fuel tank
DE10107223A1 (de) 2001-02-16 2002-08-22 Bosch Gmbh Robert Druckregler
DE10129437A1 (de) * 2001-06-19 2003-01-02 Bosch Gmbh Robert Kraftstoffversorgungseinrichtung für ein Kraftfahrzeug
DE10204269A1 (de) * 2002-02-02 2003-08-07 Bosch Gmbh Robert Druckregler für eine Kraftstoffversorgungsanlage einer Brennkraftmaschine
DE10227281A1 (de) * 2002-06-19 2004-01-08 Robert Bosch Gmbh Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs
DE10260473A1 (de) * 2002-12-21 2004-07-15 Adam Opel Ag Kraftstoffzufuhrsystem für die Zufuhr von Kraftstoff sowie Saugstrahlpumpe hierfür
US6886541B2 (en) * 2003-02-25 2005-05-03 Denso International America, Inc. Fuel pump module and method of assembly
DE10309351A1 (de) * 2003-03-03 2004-09-16 Robert Bosch Gmbh Druckregler
DE102004012281A1 (de) * 2003-03-14 2004-11-04 Denso Corp., Kariya Einfacher Aufbau eines Kraftstoffdruckreglers, der zum Minimieren eines Druckverlustes ausgelegt ist
KR100534731B1 (ko) * 2003-09-19 2005-12-07 기아자동차주식회사 자동차용 연료 펌프 어셈블리
DE102004003114A1 (de) * 2004-01-21 2005-08-11 Siemens Ag Kraftstoff-Fördereinheit
JP4175516B2 (ja) * 2004-07-28 2008-11-05 京三電機株式会社 燃料圧力調整装置
US7984728B2 (en) 2004-10-22 2011-07-26 Continental Automotive Systems Us, Inc. Fuel pressure regulator valve assembly
US9765797B2 (en) * 2005-06-02 2017-09-19 Continental Automotive Systems, Inc. Jet-venturi back flow prevention structure for a fuel delivery module
US7216633B2 (en) * 2005-09-21 2007-05-15 Denso International America, Inc. Transfer jet pump prime reservoir with integrated anti-siphon valve feature
WO2007074950A1 (fr) * 2005-12-27 2007-07-05 Inzi Controls Co., Ltd. Regulateur de pression pour circuit de carburant de vehicules
JP4346619B2 (ja) * 2006-03-17 2009-10-21 株式会社ニフコ フィルタ装置
DE102007016134A1 (de) 2006-04-25 2007-11-08 Robert Bosch Gmbh Kraftstoff-Hochdruckpumpe
EP1911962A1 (fr) * 2006-09-29 2008-04-16 Inergy Automotive Systems Research (SA) Double pompe a jet en une seule piece et systeme d'alimentation de carburant utilisant ladit pompe
US8141544B1 (en) * 2008-03-19 2012-03-27 Owen Massey Carburetor system with a return line to the fuel tank
US8459960B2 (en) * 2009-02-09 2013-06-11 Robert Bosch Gmbh Jet pump assembly

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DE837336C (de) * 1950-07-23 1952-04-21 Kloeckner Humboldt Deutz Ag Kraftstoffeinspritzvorrichtung
DE3500718A1 (de) 1985-01-11 1986-07-17 Robert Bosch Gmbh, 7000 Stuttgart Anordnung zum foerdern von kraftstoff aus einem vorratstank, ueber eine foerderleitung zur brennkraftmaschine eines kraftfahrzeuges
DE3732415A1 (de) * 1986-09-25 1988-04-07 Nissan Motor Brennstoffueberleitungsvorrichtung
US4926829A (en) * 1988-11-28 1990-05-22 Walbro Corporation Pressure-responsive fuel delivery system
DE9101313U1 (de) * 1991-02-06 1991-04-25 Adam Opel AG, 6090 Rüsselsheim Kraftstoff-Entnahmevorrichtung
JPH04153600A (ja) * 1990-10-15 1992-05-27 Jidosha Denki Kogyo Co Ltd 噴流ポンプ
US5133324A (en) * 1989-12-13 1992-07-28 Nissan Motor Co., Ltd. Ejector pump for vehicle fuel tank
DE4201037A1 (de) * 1992-01-17 1993-07-22 Bayerische Motoren Werke Ag Saugstrahlpumpe

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US4503885A (en) * 1983-12-16 1985-03-12 Chrysler Corporation Engine fuel supply system
JPS6268129A (ja) * 1985-09-18 1987-03-28 Nissan Motor Co Ltd 燃料タンクの燃料吸込装置
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DE4219516A1 (de) * 1992-06-13 1993-12-16 Bosch Gmbh Robert Kraftstofftank mit einem in diesem angeordneten Behälter
US5452701A (en) * 1994-05-23 1995-09-26 Walbro Corporation Turbine fuel pump with fuel jet

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Publication number Priority date Publication date Assignee Title
DE837336C (de) * 1950-07-23 1952-04-21 Kloeckner Humboldt Deutz Ag Kraftstoffeinspritzvorrichtung
DE3500718A1 (de) 1985-01-11 1986-07-17 Robert Bosch Gmbh, 7000 Stuttgart Anordnung zum foerdern von kraftstoff aus einem vorratstank, ueber eine foerderleitung zur brennkraftmaschine eines kraftfahrzeuges
DE3732415A1 (de) * 1986-09-25 1988-04-07 Nissan Motor Brennstoffueberleitungsvorrichtung
US4926829A (en) * 1988-11-28 1990-05-22 Walbro Corporation Pressure-responsive fuel delivery system
US5133324A (en) * 1989-12-13 1992-07-28 Nissan Motor Co., Ltd. Ejector pump for vehicle fuel tank
JPH04153600A (ja) * 1990-10-15 1992-05-27 Jidosha Denki Kogyo Co Ltd 噴流ポンプ
DE9101313U1 (de) * 1991-02-06 1991-04-25 Adam Opel AG, 6090 Rüsselsheim Kraftstoff-Entnahmevorrichtung
DE4201037A1 (de) * 1992-01-17 1993-07-22 Bayerische Motoren Werke Ag Saugstrahlpumpe

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PATENT ABSTRACTS OF JAPAN vol. 016, no. 446 (M - 1311) 17 September 1992 (1992-09-17) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000000733A1 (fr) * 1998-06-29 2000-01-06 Robert Bosch Gmbh Dispositif pour assurer une alimentation en carburant au moyen d'une unite d'alimentation en carburant
EP1103717A1 (fr) * 1999-11-23 2001-05-30 Mannesmann VDO AG Pompe disposée dans le réceptacle d'un réservoir de carburant d'un véhicule
US6478014B1 (en) 1999-11-23 2002-11-12 Mannesmann Vdo Ag Delivery unit arranged in a surge chamber of a fuel tank of a motor vehicle
WO2003102408A1 (fr) * 2002-06-04 2003-12-11 Robert Bosch Gmbh Regulateur de pression pour systeme d'alimentation en carburant d'un moteur a combustion interne
US7258135B2 (en) 2002-06-04 2007-08-21 Robert Bosch Gmbh Pressure regulator for a fuel supply system of an internal combustion engine

Also Published As

Publication number Publication date
EP0694691B1 (fr) 1997-09-03
US5564397A (en) 1996-10-15
DE4426667A1 (de) 1996-02-01
KR100387755B1 (ko) 2003-11-17
DE59500592D1 (de) 1997-10-09
JPH0849615A (ja) 1996-02-20

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