EP0705971A1 - Dispositif pour l'alimentation du moteur à combustion interne d'un véhicule à moteur avec du carburant provenant d'un réservoir - Google Patents

Dispositif pour l'alimentation du moteur à combustion interne d'un véhicule à moteur avec du carburant provenant d'un réservoir Download PDF

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Publication number
EP0705971A1
EP0705971A1 EP95112845A EP95112845A EP0705971A1 EP 0705971 A1 EP0705971 A1 EP 0705971A1 EP 95112845 A EP95112845 A EP 95112845A EP 95112845 A EP95112845 A EP 95112845A EP 0705971 A1 EP0705971 A1 EP 0705971A1
Authority
EP
European Patent Office
Prior art keywords
storage tank
container
fuel
combustion engine
internal combustion
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
EP95112845A
Other languages
German (de)
English (en)
Other versions
EP0705971B1 (fr
Inventor
Jim Beakley
Joe Crechiolo
John Casari
Jim Scherer
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 EP0705971A1 publication Critical patent/EP0705971A1/fr
Application granted granted Critical
Publication of EP0705971B1 publication Critical patent/EP0705971B1/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
    • F02M37/04—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 tank to the internal combustion engine of a motor vehicle according to the preamble of claim 1.
  • Such a device is known from DE 38 27 572.
  • This device has a container arranged in the storage tank, in which a storage space and a suction space are formed.
  • a delivery unit is arranged in the container, which sucks fuel from the suction chamber and delivers it to the internal combustion engine.
  • a return line leads from the internal combustion engine back to the storage tank, through which excess fuel that is not used by the internal combustion engine flows back and opens into the storage space of the container.
  • a valve is arranged in the area of the bottom of the container, through which the suction space is separated from the storage space in a first position and is connected to the storage tank. The valve is in this first position when there is sufficient in the storage tank in the region of the bottom of the container Fuel is present.
  • the suction space is separated from the storage tank and connected to the storage space.
  • the valve is in this second position when there is no fuel in the storage tank in the region of the bottom of the container that the delivery unit could suck in.
  • the container with the bottom is formed in one piece.
  • the container must be precisely adapted to the installation conditions of the storage tank with regard to its dimensions, in particular its height, so that it is not possible to use the same container for different storage tanks with different installation conditions. Rather, it is necessary in the known device to provide a special container for each storage tank, which leads to high manufacturing costs.
  • the device according to the invention for conveying fuel from a storage tank to the internal combustion engine of a motor vehicle has the advantage that the container can be easily adapted to different installation conditions.
  • An extruded profile is produced by extrusion and from this the tubular part for the container is cut off in the required length.
  • FIG. 1 shows a simplified basic illustration of a device for conveying fuel from a storage tank to the internal combustion engine of a motor vehicle
  • Figure 2 shows a first embodiment of a container arranged in the storage tank with a conveyor unit arranged in it in a spatial representation
  • Figure 3 shows a second embodiment of the container
  • Figure 4 shows a valve arranged in the region of the bottom of the container in a first position
  • Figure 5 shows the valve in a second position.
  • FIG. 1 shows a device for delivering fuel from a storage tank 10 to the internal combustion engine 12 of a motor vehicle.
  • a container 14 is arranged, in which a delivery unit 16 is arranged, which has a pressure connection 18, to which a pressure line 20 leading to the internal combustion engine 12 is connected.
  • the delivery unit 16 delivers fuel from the storage tank 10 to the internal combustion engine 12.
  • the delivery unit 16 has an electric drive motor, not shown, which drives a pump, also not shown.
  • the suction side of the delivery unit 16 is connected to a fuel filter 22, which is located near the bottom 24 of the storage tank 10.
  • the delivery unit 16 delivers more fuel to the internal combustion engine 12 than it consumes and the excess fuel not used by the internal combustion engine 12 is returned to the container 14 via a return line 26.
  • FIG. 2 shows a first exemplary embodiment of the container 14, in which a storage space 28 is formed in the container 14, in which the conveyor unit 16 is arranged.
  • the storage space 28 is constantly filled with fuel by the fuel flowing back through the return line 26. If the storage space 28 is filled with fuel, so the overflow, symbolized in FIG. 2 by an arrow 30, flows into the storage tank 10.
  • the container 14 has a tubular part 32, which consists of fuel-resistant plastic and is produced by extrusion. Near the bottom 24 of the storage tank 10, the tubular part 32 is closed with a bottom part 34 which is inserted tightly into the part 32.
  • the tubular part 32 can have any shape in cross-section, for example a round shape as shown in FIG. 2.
  • the bottom part 34 is also made of fuel-resistant plastic.
  • the tubular part 32 delimits the storage space 28 and in this a partial chamber 36 extending in the longitudinal direction of the part 32 is additionally separated from the storage space 28 by a wall 38.
  • the subchamber 36 is connected to the storage tank 10 via an opening 40 in the bottom section 34, so that the fuel in the subchamber 36 is just as high as is the case in the storage tank 10.
  • a fill level sensor has a float 42 arranged in the subchamber 36, which is displaceably guided on a rod 41 and which in a suitable manner transmits the fill level in the storage tank to a display device in the field of vision of the vehicle driver.
  • the conveyor unit 16 is arranged in the tubular part 32 of the container 14 near the bottom part 34 and fastened in a manner not shown, preferably via vibration-damping elements.
  • the storage tank 10 has an opening 44 through which the container 14 with the conveying unit 16 arranged therein can be introduced.
  • the opening 44 can be closed with a closure part 46, to which the delivery unit 16 is connected via electrical lines 45 and a hydraulic line 47.
  • From the closure part 46 lead outside the storage tank 10 again electrical lines 48 for connecting the delivery unit 16 to a voltage source and hydraulic lines 49 for connection to the internal combustion engine 12 from.
  • a plurality of supports 50 protrude from the closure part 46 into the storage tank 10, to which the tubular part 32 of the container 14 is fastened.
  • the supports 50 can be arranged inside or outside the tubular part 32.
  • the attachment of the container 14 to the supports 50 can be accomplished, for example, by screwing, by locking or in some other way.
  • the length of the tubular part 32 of the container 14 is adapted to the installation conditions of the storage tank 10, so that the bottom part 34 is arranged near the bottom 24 of the storage tank 10 and the upper end of the tubular part 32 comes close to the closure part 46.
  • the tubular part 32 is separated from a long extruded profile in the length required for the installation conditions in the storage tank 10.
  • the bottom part 34 is connected to the tubular part 32, for example pressed in, a sealing ring 33 being able to be used for sealing between the bottom part 34 and the tubular part 32.
  • the bottom part 34 has a pot-shaped cylinder 51 which, on the one hand, projects into the interior of the container 14 and, on the other hand, projects with its pot bottom 52 towards the bottom 24 of the storage tank 10 beyond the bottom part 34.
  • a bowl-shaped receptacle 54 adjoins the end of the cylinder 51 projecting into the container 14, in which the lower end of the roller-shaped housing of the conveying unit 16 is supported.
  • a damping element 56 can be arranged between the receptacle 54 and the housing of the delivery unit 16.
  • the conveyor unit 16 has a suction nozzle 58 which projects into the cup-shaped cylinder 51, but only to such an extent that a suction chamber 60 remains in the cylinder 51.
  • the suction space 60 is one or a plurality of openings 62 connected to the storage space 28. For this purpose it must also be stated that a gap remains free between the tubular part 32 of the container 14 and the delivery unit 16, through which fuel emerging from the return line 26 can reach the bottom part 34 in the container 14.
  • the pot bottom 52 has one or more openings 64 which open into the fuel filter 22.
  • a cup-shaped valve member 66 is arranged in the suction chamber 60 and can be moved in the suction chamber along the wall of the cylinder 51.
  • the valve member 66 is arranged in the suction chamber 60 in such a way that its cup bottom faces the pot bottom 52 of the cylinder 51.
  • the bowl bottom of the valve member 66 has an opening 68, which is arranged so that it is approximately aligned with the opening of the suction nozzle 58 of the delivery unit 16.
  • the openings 64 in the pot bottom 52 of the cylinder 51 are arranged such that they are covered by the rest of the cup bottom of the valve member 66 remaining next to the opening 68 when the valve member 66 abuts the pot bottom 52 with its cup bottom.
  • the valve member 66 is shown in a first position, in which it rests with its cup bottom on the end face 69 of the suction nozzle 58 of the delivery unit 16.
  • the openings 62 are closed by the valve member 66, while the openings 64 in the pot bottom 52 of the cylinder 51 are released.
  • the valve member 66 rests with its cup bottom on the pot bottom 52 of the cylinder 51, so that the openings 64 are closed there while the openings 62 are opened.
  • the valve member 66 is designed to be slightly heavier than the amount of fuel corresponding to its volume.
  • the cylinder 51 and the receptacle 54 for the delivery unit 16 can also be formed separately from the base part 34 as a part inserted into the container 14.
  • the device operates as described below.
  • the storage tank 10 When the storage tank 10 is filled with a working pump, it sucks fuel from the suction chamber 60 and at the same time pulls the valve member 66 into its first position shown in FIG. 4, in which the openings 62 are closed and the openings 64 are released.
  • the fuel to be conveyed flows through the fuel filter 22 through the openings 66 in the pot bottom 52 and the opening 68 in the bowl bottom into the suction chamber 60, where it is sucked in by the delivery unit 16 and conveyed to the internal combustion engine 12.
  • the valve member 66 assumes this first position as long as the delivery unit 16 is able to draw fuel from the suction chamber 60 via the fuel filter 22.
  • the storage space 28 is filled by the fuel flowing back via the return line 26.
  • the storage tank 10 is largely empty and the motor vehicle is in an inclined position or cornering, it may happen that the fuel filter 22 is no longer immersed in fuel.
  • the negative pressure prevailing in the suction chamber 60 during normal operation of the device is no longer present, so that the valve member 66 sinks down into its second position, in which the openings 64 are closed and the openings 68 are opened.
  • the suction space 60 is filled with the storage space 28 so that the delivery unit 16 can suck in fuel from the storage space 28.
  • the supply to the internal combustion engine 12 is thus ensured as long as there is fuel in the storage space 28.
  • the valve member 66 is held in its second position because the pressure of the liquid column in the storage space 28 acts on it.
  • FIG. 3 shows a second exemplary embodiment of the container 114, in which the valve described above is also present.
  • the container 114 also has the tubular part 132, which is made of plastic and is produced by extrusion, and the bottom part 134, which is also made of plastic.
  • the tubular part 132 is essentially circular in cross section, but has a part on its circumference Indentation 131.
  • the tubular part 132 is separated from an extruded extruded profile in the length required for the installation conditions of the storage tank 10.
  • the fuel filter 122 is fastened to the bottom part 134 and a sealing ring 133 is clamped between the bottom part 134 and the tubular part 132.
  • a fill level sensor is arranged on the circumference of the tubular part 132 and has a float 142 arranged on an arm 140, the arm 140 being pivotably mounted.
  • the fill level sensor is arranged in the area of the egg-shaped recess 131, so that it projects only slightly beyond the circumference of the tubular part 132.
  • the level sensor can be arranged at any position along the tubular part 132.
  • the fill level sensor 136 transmits the fill level in the storage tank 10 in a suitable manner to a display device arranged in the field of vision of the vehicle driver.
  • the conveying unit 116 is connected via electrical lines 145 and a hydraulic line 147 to the closure part 146, from which electrical lines 148 and hydraulic lines 149 lead away outside the storage tank.
  • the design of the valve arranged in the region of the base part 134 and the fastening of the container 114 to the supports 150 of the closure part 146 is the same as described in the first exemplary embodiment.
  • the container 14, 114 can be easily adapted to storage tanks 10 with different installation conditions enables.
  • the tubular part 32, 132 can always have the same cross-section and only needs to be adjusted in length accordingly.
  • the level sensor can also be easily adapted to different storage tanks by being attached to the tubular part 132 at the appropriate position.

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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)
EP95112845A 1994-10-04 1995-08-16 Dispositif pour l'alimentation du moteur à combustion interne d'un véhicule à moteur avec du carburant provenant d'un réservoir Expired - Lifetime EP0705971B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4435508A DE4435508A1 (de) 1994-10-04 1994-10-04 Vorrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs
DE4435508 1994-10-04

Publications (2)

Publication Number Publication Date
EP0705971A1 true EP0705971A1 (fr) 1996-04-10
EP0705971B1 EP0705971B1 (fr) 1998-06-10

Family

ID=6529960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112845A Expired - Lifetime EP0705971B1 (fr) 1994-10-04 1995-08-16 Dispositif pour l'alimentation du moteur à combustion interne d'un véhicule à moteur avec du carburant provenant d'un réservoir

Country Status (3)

Country Link
EP (1) EP0705971B1 (fr)
BR (1) BR9504274A (fr)
DE (2) DE4435508A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999009312A1 (fr) * 1997-08-14 1999-02-25 Robert Bosch Gmbh Groupe d'alimentation
FR2779773A1 (fr) * 1998-06-16 1999-12-17 Marwal Systems Systeme de jaugeage et de puisage de carburant pour reservoir de vehicule automobile et reservoir ainsi equipe
DE102005000730A1 (de) * 2005-01-04 2006-07-13 Siemens Ag Kraftstoffvorratsbehälter
WO2009068694A2 (fr) * 2007-11-30 2009-06-04 Inergy Automotive Systems Research (Société Anonyme) Module de distribution de carburant
WO2020051335A1 (fr) * 2018-09-06 2020-03-12 Trico Group, LLC Ensemble pompe à carburant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208824A1 (de) * 2002-03-01 2003-09-11 Siemens Ag Kraftstoff-Fördereinheit
DE102004024466A1 (de) * 2004-05-14 2005-12-08 Mann + Hummel Gmbh Kraftstoffmodul

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0314068A2 (fr) * 1987-10-26 1989-05-03 Nippondenso Co., Ltd. Dispositif d'alimentation en carburant pour vehicules
DE3827572A1 (de) 1988-08-13 1990-02-15 Bosch Gmbh Robert Vorrichtung zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines kraftfahrzeuges
DE3943200A1 (de) * 1989-02-24 1990-08-30 Walbro Corp Einbau-brennstoffpumpe mit pegelkontrolle
EP0459556A1 (fr) * 1990-06-01 1991-12-04 General Motors Corporation Système modulaire d'alimentation de carburant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0314068A2 (fr) * 1987-10-26 1989-05-03 Nippondenso Co., Ltd. Dispositif d'alimentation en carburant pour vehicules
DE3827572A1 (de) 1988-08-13 1990-02-15 Bosch Gmbh Robert Vorrichtung zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines kraftfahrzeuges
DE3943200A1 (de) * 1989-02-24 1990-08-30 Walbro Corp Einbau-brennstoffpumpe mit pegelkontrolle
EP0459556A1 (fr) * 1990-06-01 1991-12-04 General Motors Corporation Système modulaire d'alimentation de carburant

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999009312A1 (fr) * 1997-08-14 1999-02-25 Robert Bosch Gmbh Groupe d'alimentation
FR2779773A1 (fr) * 1998-06-16 1999-12-17 Marwal Systems Systeme de jaugeage et de puisage de carburant pour reservoir de vehicule automobile et reservoir ainsi equipe
EP0965748A1 (fr) * 1998-06-16 1999-12-22 Marwal Systems Système de jaugeage et de puisage de carburant pour réservoir de véhicule automobile et réservoir ainsi équipé
US7886721B2 (en) 2005-01-04 2011-02-15 Continental Automotive Gmbh Fuel reservoir
DE102005000730A1 (de) * 2005-01-04 2006-07-13 Siemens Ag Kraftstoffvorratsbehälter
DE102005000730B4 (de) * 2005-01-04 2015-10-22 Continental Automotive Gmbh Kraftstoffvorratsbehälter
CN102084115B (zh) * 2007-11-30 2013-11-20 因勒纪汽车系统研究公司 燃料传送模块
CN102084115A (zh) * 2007-11-30 2011-06-01 因勒纪汽车系统研究公司 燃料传送模块
WO2009068694A3 (fr) * 2007-11-30 2010-01-07 Inergy Automotive Systems Research (Société Anonyme) Module de distribution de carburant
US8701705B2 (en) 2007-11-30 2014-04-22 Inergy Automotive Systems Research (Societe Anonyme) Fuel delivery module
WO2009068694A2 (fr) * 2007-11-30 2009-06-04 Inergy Automotive Systems Research (Société Anonyme) Module de distribution de carburant
CN103541842B (zh) * 2007-11-30 2017-03-22 因勒纪汽车系统研究公司 单件式连接单元
DE112008002993B4 (de) 2007-11-30 2024-03-28 Inergy Automotive Systems Research (Sa) Kraftstofffördermodul
WO2020051335A1 (fr) * 2018-09-06 2020-03-12 Trico Group, LLC Ensemble pompe à carburant
US10634102B2 (en) 2018-09-06 2020-04-28 Trico Group, LLC Fuel pump assembly
US10865750B2 (en) 2018-09-06 2020-12-15 Trico Group, LLC Fuel pump assembly
US11022080B2 (en) 2018-09-06 2021-06-01 Trico Group, LLC Fuel pump assembly

Also Published As

Publication number Publication date
EP0705971B1 (fr) 1998-06-10
DE59502481D1 (de) 1998-07-16
DE4435508A1 (de) 1996-04-11
BR9504274A (pt) 1996-10-01

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