EP1299636B1 - Kraftstoffversorgungseinrichtung für eine brennkraftmaschine, insbesondere für kraftfahrzeuge - Google Patents

Kraftstoffversorgungseinrichtung für eine brennkraftmaschine, insbesondere für kraftfahrzeuge Download PDF

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Publication number
EP1299636B1
EP1299636B1 EP01947728A EP01947728A EP1299636B1 EP 1299636 B1 EP1299636 B1 EP 1299636B1 EP 01947728 A EP01947728 A EP 01947728A EP 01947728 A EP01947728 A EP 01947728A EP 1299636 B1 EP1299636 B1 EP 1299636B1
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EP
European Patent Office
Prior art keywords
fuel
closure element
pressure regulator
passage
configuration
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
EP01947728A
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English (en)
French (fr)
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EP1299636A1 (de
Inventor
Ivan Cecchelli
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.)
Bitron SpA
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Bitron SpA
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Publication of EP1299636A1 publication Critical patent/EP1299636A1/de
Application granted granted Critical
Publication of EP1299636B1 publication Critical patent/EP1299636B1/de
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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • F02M37/0058—Returnless fuel systems, i.e. the fuel return lines are not entering the fuel 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
    • F02M37/103—Mounting pumps on fuel tanks
    • 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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • 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
    • F02M37/0029—Pressure regulator in the low pressure fuel 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
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters

Definitions

  • the present invention relates to apparatus for the supply of fuel to an internal combustion engine, in particular for a motor vehicle.
  • JP 09 222 054 A proposes a system that can be used in both cases, with or without return flow, by changing location of the pressure regulator.
  • the object of the present invention is therefore to provide fuel supply apparatus structured in such a way that, with a limited number of relatively simple operations it is possible to configure it for use in a fuel supply system of the type with return flow or for use in a fuel supply system without return flow.
  • the apparatus 1 comprises a closure element 2 essentially in the form of a flanged plug, intended to be fixed in a liquid-tight manner in an aperture 3 ( Figures 4 and 5) formed in a lower wall 4a of a fuel tank 4.
  • an aperture 3 Figures 4 and 5
  • two mushroom shape retainer members 5 are formed in the face of the closure element intended to face into the tank.
  • a further hollow tubular formation 9 extends in a similar manner from the closure element 2 towards the interior of the tank 4 (see Figures 2, 4 and 5) and its distal portion 9a is upwardly closed and shaped in the form of an hydraulic connector.
  • a multi-pole electric connector 10 (Figure 3) is sealingly engaged in an aperture 11 (Figure 2) formed in the closure element 2.
  • the apparatus 1 further comprises an electric pump 13 with a lower suction connector 13a, and an upper delivery connector 13b ( Figure 2).
  • One end of a tube 14 is engaged on this delivery connector 13b, the other end of which is connected to the inlet connector 15a of a filter 15.
  • This filter has an outlet connector 15b ( Figure 2) engaged in a connector tube 16.
  • a support structure essentially constituted by a substantially annular wall is generally indicated 17. Close to its lower end the support structure 17 has a pair of ears 18 (of which only one is visible in Figures 1 and 2) provided with respective apertures 19 (Figure 2) into which the retainer members 5 of the closure element 2 can be engaged.
  • the structure or wall 17 forms a settling chamber within the fuel tank 4.
  • An hydraulic pressure regulator device is generally indicated 20 in the drawings.
  • this device comprises a connection and support housing 20a into which a pressure regulator indicated 20b is fitted.
  • connection and support housing 20a has an upper inlet connector 20c ( Figures 2, 4 and 5) preferably formed blind or closed.
  • the housing 20a further has a lower inlet/outlet connector 20d which can be sealingly coupled with the passage or opening 7 of the lower closure element 2.
  • a chamber which communicates with the internal region at a tubular portion 20e of the same housing, which terminates with a flange 20f.
  • the tubular portion 20e has at least one longitudinal lower slot 20g.
  • the pressure regulator 20b has an inlet 20h and an outlet connector 20i essentially at 90° to one another.
  • This pressure regulator 20b is fitted in the tubular portion 20e of the housing 20a and has an annular flange 201 which contacts the flange 20f of this tubular portion.
  • the inlet' 20h of the regulator 20b extends into the' tubular portion 20e of the holder 20a, whilst the outlet connector .20i extends downwardly through the slot 20g of this housing.
  • the housing 20a further has two lateral projections 20m ( Figures 2 and 3) having respective cut-out portions which can engage with, interference on the protuberances 8 of the formation 6 of the closure element 2.
  • the fuel supply apparatus 1 further comprises a Venturi tube device 21 intended to be coupled to the outlet connector 20i of the pressure regulator 20b.
  • a fuel level detector device for detecting the level.of fuel in the tank is generally indicated 22 in Figures 1 and 2.
  • the device of type known per se, is in particular intended to provide electrical signals indicative of the fuel level, between a predetermined maximum level and a predetermined minimum level (or reserve level).
  • the level detector 22 has an essentially cylindrical body 22a fitted in a support housing 22b of substantially tubular shape.
  • the support wall or structure 17 has a cut-out 23 which extends downwardly from its upper edge. From the inner surface of this wall 17 adjacent to the vertical sides of the cut-out 23 extend two guides 24 which can receive and retain in mutual engagement the end flanges 20f and 20l, respectively, of the connection and support housing 20a and the pressure regulator 20b as seen in particular in Figure 1.
  • the support structure 17 further has an arcuate wall portion 25 (Figures 1 and 2) internally provided with resilient retainer projections 26 able to clamp and retain the electric pump 13.
  • the support housing 22b of the fuel level detector device 22 has a lower tab 22c (Figure 2) engagable in a corresponding seat 27 provided adjacent the upper edge of the support wall or structure 17 ( Figure 2).
  • the apparatus described above can be arranged in a first or a second configuration, for use in a fuel supply system of the type with and, respectively, without return flow.
  • the configuration shown in Figure 4 relates to, use of the apparatus 1 in a fuel supply system of the type without return flow.
  • the outlet 15b from the filter 15 is connected, via the tube 16, to the inlet connector 20c (preliminary opened) of the pressure regulator 20.
  • the pump 13 supplies fuel towards the tube 14, the filter 15, the tube 16, the pressure regulator 20 and this flow of fuel through the passage 7 of the closure element 2 (via a tube not illustrated) is adapted to the requirements of the internal combustion engine.
  • the fuel which may be in excess is recirculated to the interior of the tank 4 through the pressure regulator 20b and in particular through its outlet connector 20i and the Venturi duct device 21.
  • the configuration shown in Figure 5 is, on the other hand, envisaged for use in a fuel supply system of the type having return flow.
  • the outlet 15b of the filter 15 via the tube 16 is connected to the passage or connector 9a (preliminary opened) of the closure element 2 in order to deliver fuel to the internal combustion engine through this connector.
  • the electric connector 20c of the pressure regulator 20 is on the other hand left closed in such a way that the said pressure regulator is able to receive and to re-emit into the settling chamber 17 a flow of excess fuel which returns from the internal combustion engine through the aperture 7 of the lower closure element and the inlet/outlet connector 20d of the pressure regulator.
  • This flow of returning fuel passes through the pressure regulator 20b and is reintroduced into the settling chamber through the outlet connector 20i of this pressure regulator, and the associated Venturi duct device 21.
  • the fuel supply apparatus can, with simple and rapid operations, be set in one or the other configuration of use depending on whether it is intended to be used in a fuel supply system of the type with or without return flow.

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)
  • Air-Conditioning For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Claims (7)

  1. Apparat (1) für die Zufuhr von Kraftstoff zu einem Verbrennungsmotor, insbesondere für ein Kraftfahrzeug, umfassend
    ein Verschlusselement (2), das für eine flüssigkeitsdichte Verbindung mit der Öffnung (3) in einer Wand (4a) eines Kraftstofftanks (4) bestimmt ist und in dem ein erster und ein zweiter Durchgang (7; 9, 9a) gebildet sind,
    eine Stützkonstruktion (17), die dazu bestimmt ist, am Verschlusselement (2) innerhalb des Tanks (4) befestigt zu werden;
    eine Pumpe (13), die von der Konstruktion (17) getragen wird und deren Ableitung (13b) an einem Filter (15) angeschlossen ist;
    eine Druckreglervorrichtung (20), die ebenfalls von der Konstruktion (17) getragen wird und ein Eingangsverbindungsstück (20c), ein am ersten Durchgang (7) des Verschlusselements (2) angeschlossenes Eingangs/Ausgangsverbindungsstück (20d) und einen Ausgang (20i) aufweist;
    wobei der Apparat solcherart ist, dass der Apparat (1) in einer ersten oder in einer zweiten Konfiguration angeordnet werden kann, und zwar zur Verwendung in einem Kraftstoffzufuhrsystem vom Typ mit bzw. ohne Rückfluss;
    wobei der Ausgang des Filters (15) in der ersten Konfiguration mit dem zweiten Durchgang (9, 9a) des Verschlusselements (2) verbunden ist, um durch den zweiten Durchgang (9, 9a) Kraftstoff zum Motor zu liefern; wobei das Eingangsverbindungsstück (20c) des Druckreglers (20) solcherart geschlossen wird, dass der Druckregler (20) vom Motor einen Rückfluss an Kraftstoff erhalten kann;
    wobei der zweite Durchgang (9, 9a) des Verschlusselements (2) in der zweiten Konfiguration geschlossen ist und der Filterausgang (15) am Eingangsverbindungsstück (20c) des Druckreglers (20) angeschlossen ist, um dem Motor durch den ersten Durchgang (7) des Verschlusselements (2) Kraftstoff zuzuführen.
  2. Apparat gemäß Anspruch 1, wobei der zweite Durchgang (9, 9a) des Verschlusselements (2) und das Eingangsverbindungsstück (20c) des Druckreglers (20) zur Erzielung der ersten bzw. der zweiten Verwendungskonfiguration selektiv zu öffnen sind.
  3. Apparat gemäß irgendeinem vorhergehenden Anspruch, wobei die Stützkonstruktion (17) in der Lage ist, zusammen mit dem Verschlusselement (2) eine Absetzkammer innerhalb des Tanks (4) zu definieren.
  4. Apparat gemäß irgendeinem vorhergehenden Anspruch, wobei die Druckreglervorrichtung (20) entlang einer ersten Richtung am Verschlusselement (2) verankert ist und in der Stützkonstruktion (17) in einer entlang einer anderen Richtung eingeschränkten Weise befestigt ist, und zwar unter Bildung eines Winkels mit der ersten Richtung.
  5. Apparat gemäß irgendeinem vorhergehenden Anspruch, weiters umfassend eine Vorrichtung zum Ermitteln des Kraftstoffstands im Tank, welche am oberen Teil der Stützkonstruktion (17) befestigt ist.
  6. Apparat gemäß Anspruch 3, wobei die Wand (17) der Absetzkammer außen mit zumindest einem elastischen Haltevorsprung (26) versehen ist, der dazu betriebsfähig ist, die Pumpe (13) zu erfassen und festzuhalten.
  7. Apparat gemäß irgendeinem vorhergehenden Anspruch, wobei am Ausgang (20i) des Druckreglers (20) eine Venturirohr-Vorrichtung (21) angekoppelt ist.
EP01947728A 2000-07-05 2001-07-03 Kraftstoffversorgungseinrichtung für eine brennkraftmaschine, insbesondere für kraftfahrzeuge Expired - Lifetime EP1299636B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2000TO000678A IT1320525B1 (it) 2000-07-05 2000-07-05 Apparecchio per l'alimentazione di carburante ad un motore acombustione interna, particolarmente per motoveicoli.
ITTO000678 2000-07-05
PCT/IB2001/001258 WO2002002925A1 (en) 2000-07-05 2001-07-03 Apparatus for the supply of fuel to an internal combustion engine, particularly for motor vehicles

Publications (2)

Publication Number Publication Date
EP1299636A1 EP1299636A1 (de) 2003-04-09
EP1299636B1 true EP1299636B1 (de) 2006-05-17

Family

ID=11457896

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Application Number Title Priority Date Filing Date
EP01947728A Expired - Lifetime EP1299636B1 (de) 2000-07-05 2001-07-03 Kraftstoffversorgungseinrichtung für eine brennkraftmaschine, insbesondere für kraftfahrzeuge

Country Status (7)

Country Link
EP (1) EP1299636B1 (de)
AT (1) ATE326629T1 (de)
AU (1) AU2001269368A1 (de)
DE (1) DE60119736T2 (de)
ES (1) ES2259664T3 (de)
IT (1) IT1320525B1 (de)
WO (1) WO2002002925A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2066517A2 (de) * 2006-09-21 2009-06-10 Continental Automotive Systems US, Inc. Formrohr für kraftstoffzufuhrmodul eines fahrzeuges

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3167104B2 (ja) * 1996-02-15 2001-05-21 株式会社ユニシアジェックス 燃料供給ユニット
JP4417440B2 (ja) * 1996-02-16 2010-02-17 大日本印刷株式会社 拡散ホログラムタッチパネル
FR2768667B1 (fr) * 1997-09-23 1999-12-03 Bitron France Dispositif de pompage et reservoir de carburant pour vehicule automobile equipe d'un tel dispositif
JP3571728B2 (ja) * 1997-11-19 2004-09-29 三菱電機株式会社 車両用燃料供給装置
DE19832842C1 (de) * 1998-07-21 2000-02-17 Bosch Gmbh Robert Kraftstoff-Fördersystem zur Kraftstoffversorgung einer Brennkraftmaschine

Also Published As

Publication number Publication date
EP1299636A1 (de) 2003-04-09
ITTO20000678A0 (it) 2000-07-05
DE60119736D1 (de) 2006-06-22
ES2259664T3 (es) 2006-10-16
IT1320525B1 (it) 2003-12-10
ATE326629T1 (de) 2006-06-15
WO2002002925A1 (en) 2002-01-10
DE60119736T2 (de) 2006-11-23
ITTO20000678A1 (it) 2002-01-05
AU2001269368A1 (en) 2002-01-14

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