EP1066463B1 - Module d'acheminement de carburant comportant une soupape de remplissage initial - Google Patents

Module d'acheminement de carburant comportant une soupape de remplissage initial Download PDF

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Publication number
EP1066463B1
EP1066463B1 EP99922058A EP99922058A EP1066463B1 EP 1066463 B1 EP1066463 B1 EP 1066463B1 EP 99922058 A EP99922058 A EP 99922058A EP 99922058 A EP99922058 A EP 99922058A EP 1066463 B1 EP1066463 B1 EP 1066463B1
Authority
EP
European Patent Office
Prior art keywords
fuel
closing element
suction
closing
tank
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
Application number
EP99922058A
Other languages
German (de)
English (en)
Other versions
EP1066463A2 (fr
Inventor
Kurt Frank
Ingo Richter
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 EP1066463A2 publication Critical patent/EP1066463A2/fr
Application granted granted Critical
Publication of EP1066463B1 publication Critical patent/EP1066463B1/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
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • 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
    • F02M37/04—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

Definitions

  • the invention relates to a device for delivering fuel from a reservoir for an internal combustion engine of a motor vehicle according to the preamble of claim 1.
  • Such a device is known from DE 195 49 192 A1.
  • the fuel delivery module described has in the bottom region of its suction container a mushroom-shaped closing element.
  • This closing element is axially movable.
  • the mushroom-like part of the closing element spans an opening in the bottom of the suction tank of the fuel delivery module, through which the interior of the suction tank of the fuel delivery module communicates with the interior of a storage container. by virtue of the dead weight of the closing element is on the inside of the Bottom of the suction container, spanning the opening, so that the opening is sealed.
  • the valve opens and fuel flows out of the reservoir through the opening in the bottom of the suction container into the interior of the suction container on.
  • a fuel delivery module is used to inside the suction tank the fuel of the internal combustion engine of the motor vehicle fed.
  • the inventive device for delivering fuel from a Storage container for an internal combustion engine of a motor vehicle has a fuel delivery unit, which on the suction side with a suction tank, which is connected to the storage container, and on the pressure side is connected to the internal combustion engine, and a return line to convey excess fuel into the suction tank.
  • the suction container has a closing element in the bottom area, which between a first position in which the closing element is open, and a second Position is movable, in which the closing element is closed.
  • the closing element has an actuating device provided which in particular when the fuel level is low or zero Storage container holds the closing element in the first, open position and which with at least as much fuel in the suction tank that the fuel delivery unit still has enough fuel to the internal combustion engine can deliver the closing element in the second, closed Holds position.
  • a major advantage of a closing element with an actuating device is that the sealing function and closing function of the closing element are decoupled from each other.
  • Such an inventive the closing element also referred to as the first filling valve, is provided with the actuating device connected in such a way that when the tank is empty, the closing element is open. There is therefore no need to build up static pressure, to operate the first fill valve. This can even when filling smallest amounts of fuel immediately an inflow of fuel from the Storage containers can be guaranteed in the interior of the suction container.
  • Another advantage of such a closing element is that that the first fill valve is kept in the open position when the tank is empty is, so that otherwise possibly occurring adhesive effects on the sealing seat are eliminated.
  • an actuating device which in Dependence on the fuel level in the storage tank is controlled is a precisely defined closing point of the closing element adjustable or achievable.
  • the actuating device designed as a floating body and is connected to the closing element.
  • the closing element is at the bottom of the suction container of the fuel delivery module attached so that when there is no fuel Closing element as a result of the mass of the actual closing element and the mass of the floating body existing total mass in the open position because the float in the absence of fuel experiences no buoyancy.
  • the float is dimensioned so that in the event that the float is immersed in the fuel or from is surrounded, develops a buoyancy that is greater than that mass force caused by the total mass of the closing element. Thereby the closing element is brought into the closed position. The closing forces the higher the size of the floating body, the higher because its buoyancy corresponds to the amount of fuel displaced.
  • a major advantage of such training is that thereby a secure sealing function of the closing element even in the case of a Dirt load on the sealing seat is achieved because of the buoyancy the sealing force increases and thus the closing element is better sealed.
  • the closing element is preferably designed as a flap or umbrella valve, its sealing function and closing function through the fuel level-dependent, decoupling controlled by the float are.
  • decoupled means that on the one hand, the build-up of static pressure by sufficient large amount of fuel filled in the reservoir the closing element actuated and that on the other hand by the dimensioning of the Floating body with the closing element already closed as a result of Buoyancy of the floating body in the fuel the sealing function of the closing element can be further increased if only the floating body and so that its buoyancy is sufficiently large.
  • the floating body is either direct fastened in the closing element or is via a lever which between the closing element and the floating body is mounted with the closing element connected.
  • a major advantage of a directly with the locking element connected float is that the entire Closing element structurally particularly simple and therefore essentially failsafe functions reliably.
  • the main advantage of a locking element, in which the floating body is levered with the actual closing element is connected is that via a appropriate choice of lever length and position of the float, which is preferably on the lever in the direction of the longitudinal axis of the lever is arranged displaceably, in particular the closing moment and thus the Sealing force of the closing element designed as an umbrella valve is adjustable can be designed.
  • the closing element is preferably arranged on the bottom of the suction container in such a way that the screen of the screen valve on the bottom of the reservoir facing outer side of the bottom of the suction container is arranged while the floating body inside the suction container is.
  • the closing element in the area of the floor it is also possible for the closing element in the area of the floor to arrange the suction container on its side wall, the actuation the closing element via a with a bellcrank with the closing element connected floating body takes place.
  • Sealing force of the closing element is adapted to the size of the float it is also possible to use, for example, an electromagnet as an actuating element to be provided, which is controlled depending on the fuel level.
  • an electromagnet as an actuating element to be provided, which is controlled depending on the fuel level.
  • fuel level sensors are used to record the fuel level to be provided in a design known per se.
  • Such Actuating device has the advantage that the closing element is complete decoupled from the fuel level or the amount of fuel filled is controllable.
  • FIG. 1 is a basic sectional view of a fuel delivery module shown with the first filling valve, as is known in the prior art.
  • a fuel delivery module which is located in a storage container 1 or fuel tank is arranged, has a suction tank 3 which a fuel delivery unit 2 the fuel via a corresponding Fuel line of an internal combustion engine of a motor vehicle supplies.
  • the fuel surplus from the internal combustion engine flows back to the fuel delivery module via a return line 4.
  • the return line 4 is connected to a jet pump 16, which in a state in which it is immersed in the fuel in the reservoir 1 is fuel by means of the ejector principle with its propellant jet a mixing area 17 and an opening into the interior of the suction container 3 promotes.
  • the fuel that has entered the suction tank 3 is filtered 14 and 15 then fed to the fuel delivery unit 2.
  • the fuel tank After completing the final assembly, the fuel tank must be filled 1 ensure that a certain amount of fuel in the The interior of the suction container 3 arrives so that the fuel delivery unit 2 Can supply fuel to the internal combustion engine at all.
  • To fuel is first filled into the fuel tank 1.
  • FIG. 2 is a detailed sectional view of the area of the fuel delivery module shown according to the invention, in which the closing element or First fill valve is arranged.
  • the closing element 5 5 is in the shown in the open position.
  • a float 7 is directly on one Shaft of the closing element 5 arranged at the end thereof on the outside the bottom 10 of the suction container 3 an umbrella-like or mushroom-like Head is arranged.
  • the diameter of the screen or head is included chosen so that the closing element in the closed state openings in Floor 10 covers.
  • the closing element by the mass force due to the total mass of the Closing element (mass of the float + mass of the actual Closing element) brought into the open position.
  • the bottom 10 of the Suction container 3 is spaced from the bottom 9 of the fuel tank 1. The distance between the floor 9 and the floor 10 defines the maximum stroke, which the closing element 5 from the fully open position can execute up to the closed position.
  • FIG. 3 shows the area of the fuel delivery module according to the invention shown in FIG. 2, with one inside the suction container 3 such fuel level 13 is that the float 7 completely is surrounded by fuel. Because of the buoyancy developed the closing element is raised and the screen on the outer Side of the bottom 10 of the suction container 3, the openings in the bottom 10 spanning, raised to a closed, sealing position. As long as the fuel level 13 is sufficiently high for the floating body 7 is surrounded by fuel, the first fill valve remains closed, and a backflow of fuel from the suction tank 3 via the in openings 10 arranged at the bottom thereof when the first filling valve is open back into the fuel tank 1 is omitted.
  • the closing element is again shown in the form of an umbrella valve, whose screen the openings in the bottom 10 of the suction container 3 in the closed position spanned. 4 is the open position of the First fill valve shown.
  • the float 7 is a Lever 8 connected to the actual closing element 5.
  • the lever 8 is thereby in an area between the closing element 5 and the floating body 7 stored.
  • the storage position of the lever as well as the position the float on the lever are preferably changeable so that the leverage which, in the case of the fuel level-dependent action of the Buoyancy through the floating body 7, the contact pressure and thus the Sealing force of the umbrella valve in the interior of the base 10 of the suction container 3 is determined, adjustable or preselectable.
  • FIG. 5 shows a further exemplary embodiment of the invention, in which the closing element in the bottom area of the fuel delivery module in the side wall 12 of the suction container 3 is arranged.
  • the floating body 7 is by means of a deflection lever or angle lever 11 with the actual one Umbrella valve body connected. Because of the two legs of the Deflection lever 11 formed angle and corresponding articulation of the a leg of it on the actual closing element body is at missing fuel in the suction tank 3, i.e. in the absence of buoyancy of the float 7, the closing element in the open position held. If due to the increase in the fuel level 13 in the suction tank 3 the float 7 floats, the shooting element in the second, i.e. closed position pressed. Depending on the size of the float 7 and depending on the fuel level 13 in the suction tank 3 results a differently strong and thus predeterminable contact pressure or sealing force the screen of the closing element in the area of the openings in the side wall 12th

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  • 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)
  • Float Valves (AREA)

Claims (8)

  1. Dispositif pour transférer du carburant d'un réservoir d'alimentation (1) à un moteur à combustion interne d'un véhicule à l'aide d'une unité de transfert de carburant (2) dont le côté aspiration est relié à un réservoir d'aspiration (3) communiquant avec le réservoir principal (1) et du côté du refoulement, au moteur à combustion interne ainsi qu'une conduite de retour (4) pour reconduire l'excédent de carburant dans le réservoir d'aspiration (3) dont le fond comporte un élément de fermeture (5) mobile entre une première position dans laquelle le réservoir d'aspiration (3) est ouvert par rapport au réservoir principal (1) et dans une seconde position dans laquelle le réservoir d'aspiration (3) est fermé par rapport au réservoir principal (1),
    caractérisé en ce que
    l'élément de fermeture (5) comporte une installation d'actionnement (6) notamment pour un niveau de carburant faible ou nul dans le réservoir principal (1), qui maintient l'élément de fermeture (5) dans sa première position ouverte et qui, lorsque le réservoir d'aspiration (3) contient au moins suffisamment de carburant pour que l'unité de transfert de carburant (2) puisse fournir du carburant au moteur à combustion interne, maintient l'élément de fermeture (5) dans la seconde position, fermée.
  2. Dispositif selon la revendication 1;
    caractérisé en ce que
    l'installation d'actionnement est un flotteur (7).
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    l'élément de fermeture (5) est une soupape à clapet ou une soupape parapluie dont les fonctions d'étanchéité et de fermeture sont découplées.
  4. Dispositif selon les revendications 2 ou 3,
    caractérisé en ce que
    le flotteur (7) est fixé directement à l'élément de fermeture (5).
  5. Dispositif selon les revendications 2 ou 3,
    caractérisé en ce que
    le flotteur (7) est relié à l'élément de fermeture (5) par un levier (8) monté entre l'élément de fermeture (5) et le flotteur (7).
  6. Dispositif selon les revendications 4 ou 5,
    caractérisé en ce que
    l'élément de fermeture (5) est installé au fond (10) du réservoir d'aspiration (3).
  7. Dispositif selon la revendication 2 ou 3,
    caractérisé en ce que
    le flotteur (7) est relié à l'élément de fermeture (5) par un levier de renvoi (11).
  8. Dispositif selon la revendication 7,
    caractérisé en ce que
    l'élément de fermeture (5) est installé dans la paroi latérale (12) du réservoir d'aspiration (3).
EP99922058A 1998-03-25 1999-03-23 Module d'acheminement de carburant comportant une soupape de remplissage initial Expired - Lifetime EP1066463B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19813172 1998-03-25
DE19813172A DE19813172A1 (de) 1998-03-25 1998-03-25 Kraftstoff-Fördermodul mit Erstbefüllventil
PCT/DE1999/000832 WO1999049207A2 (fr) 1998-03-25 1999-03-23 Module d'acheminement de carburant comportant une soupape de remplissage initial

Publications (2)

Publication Number Publication Date
EP1066463A2 EP1066463A2 (fr) 2001-01-10
EP1066463B1 true EP1066463B1 (fr) 2003-06-04

Family

ID=7862300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99922058A Expired - Lifetime EP1066463B1 (fr) 1998-03-25 1999-03-23 Module d'acheminement de carburant comportant une soupape de remplissage initial

Country Status (7)

Country Link
US (1) US6450151B1 (fr)
EP (1) EP1066463B1 (fr)
JP (1) JP2002507694A (fr)
KR (1) KR20010042119A (fr)
BR (1) BR9909036A (fr)
DE (2) DE19813172A1 (fr)
WO (1) WO1999049207A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19930595C2 (de) 1999-07-02 2001-07-05 Bosch Gmbh Robert Vorrichtung zur Befüllung eines Reservoirs eines Kraftstofffördermoduls
DE19950289A1 (de) 1999-10-19 2001-04-26 Bosch Gmbh Robert Kraftstoffversorgungseinrichtung für eine Brennkraftmaschine eines Kraftfahrzeugs
DE10238237A1 (de) * 2002-08-21 2004-03-04 Daimlerchrysler Ag Kammerentleerungseinrichtung
US7028671B2 (en) * 2004-08-20 2006-04-18 General Motors Corporations Fuel return systems
US20060096582A1 (en) * 2004-11-08 2006-05-11 Patrick Powell Counter-balanced inlet door for fuel pump module check valve
DE102004055442A1 (de) * 2004-11-17 2006-05-24 Siemens Ag Fördereinrichtung zur Förderung von Kraftstoff aus einem Kraftstoffbehälter
US7571716B2 (en) * 2005-03-14 2009-08-11 Inergy Automotive Systems Research (Societe Anonyme) Fuel system with direct connection between fuel pump, jet pump, and fuel filter
US7156080B1 (en) * 2005-09-27 2007-01-02 Airtex Corporation Flow control valve for fuel module assembly
DE102007018819A1 (de) * 2007-04-20 2008-10-23 Robert Bosch Gmbh Schaltventil in einem Kraftstofffördermodul und Verfahren zur Umrüstung des Kraftstofffördermoduls
US9217403B1 (en) * 2012-06-15 2015-12-22 Walbro Engine Management, L.L.C. Level sensor mount

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335741A (en) * 1981-02-11 1982-06-22 Nasser Karim W Fluid level controller
DE4123367A1 (de) * 1991-07-15 1993-01-21 Magenwirth Gmbh Co Gustav Einrichtung zum foerdern von kraftstoff aus einem behaelter
US5218942A (en) * 1992-11-30 1993-06-15 General Motors Corporation Modular fuel sender for motor vehicle
DE4339684A1 (de) * 1993-11-22 1995-05-24 Bosch Gmbh Robert Einrichtung zum Fördern von Kraftstoff aus einem Vorratsschrank zu einer Brennkraftmaschine eines Kraftfahrzeuges
DE4426667A1 (de) * 1994-07-28 1996-02-01 Bosch Gmbh Robert Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges
US5642719A (en) * 1995-09-11 1997-07-01 Ford Motor Company Automotive fuel delivery module with fuel level actuated reservoir
DE19549192A1 (de) * 1995-12-30 1997-07-03 Bosch Gmbh Robert Einrichtung zum Fördern von Kraftstoff aus einem Vorratstopf zur Brennkraftmaschine eines Kraftfahrzeuges
DE19709780A1 (de) * 1997-03-10 1998-09-17 Bosch Gmbh Robert Vorrichtung zum Fördern von Kraftstoff aus einem Kraftstofftank

Also Published As

Publication number Publication date
DE19813172A1 (de) 1999-09-30
DE59905843D1 (de) 2003-07-10
WO1999049207A2 (fr) 1999-09-30
US6450151B1 (en) 2002-09-17
JP2002507694A (ja) 2002-03-12
WO1999049207A3 (fr) 2000-04-13
BR9909036A (pt) 2000-12-05
EP1066463A2 (fr) 2001-01-10
KR20010042119A (ko) 2001-05-25

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