EP0447664A1 - Kraftstoffversorgungsanlage für eine Diesel-Brennkraftmaschine - Google Patents

Kraftstoffversorgungsanlage für eine Diesel-Brennkraftmaschine Download PDF

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Publication number
EP0447664A1
EP0447664A1 EP90125069A EP90125069A EP0447664A1 EP 0447664 A1 EP0447664 A1 EP 0447664A1 EP 90125069 A EP90125069 A EP 90125069A EP 90125069 A EP90125069 A EP 90125069A EP 0447664 A1 EP0447664 A1 EP 0447664A1
Authority
EP
European Patent Office
Prior art keywords
fuel
supply system
fuel tank
line
float
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.)
Ceased
Application number
EP90125069A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ulrich Bihl
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz AG
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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0447664A1 publication Critical patent/EP0447664A1/de
Ceased 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • 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
    • F02M37/20—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 characterised by means for preventing vapour lock
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to a fuel supply system for a diesel internal combustion engine according to the features specified in the preamble of claim 1.
  • a fuel supply system is known from DE 29 52 016 A1, in which air carried along in the supply line is returned to the fuel tank via a fuel filter. Furthermore, measures are taken here in the return line leading from the fuel filter to the fuel tank which prevent displaced air from reaching the filter and the supply line when refueling an empty fuel tank and ultimately lead to malfunctions of the internal combustion engine.
  • a fuel supply system with a fuel metering device which is designed as a carburetor and is connected via a discharge channel to a storage chamber, which is also a float chamber and a float with opposing valves has one of which closes a line opening into the supply line in the case of air intake.
  • the invention has for its object to provide simple measures on this generic fuel supply system, which ensures that on the one hand no air is sucked in by the fuel feed pump and that on the other hand when filling a fuel-free container an almost immediate start of the internal combustion engine is possible.
  • the measures according to the invention ensure that after filling up an empty fuel tank there are no problems with restarting the internal combustion engine. In addition, air is prevented from entering the supply line with only a small fuel supply in the fuel tank, which leads to malfunctions.
  • a fuel supply system with a float valve which is connected to a line leading to the intake manifold of a mixture-compressing internal combustion engine (FIG. 1).
  • the negative pressure in the intake manifold is used to transport fuel from the fuel tank via a connecting line into a storage tank, in order to be conveyed from there to the carburetor by means of a conventional fuel feed pump.
  • the float valve ensures that no fuel gets into the line leading to the intake manifold.
  • the known embodiment according to FIG. 2 is intended for a diesel internal combustion engine.
  • the float valve operates in a similar manner to that of the aforementioned embodiment according to FIG. 1, the negative pressure being used to transport the fuel through a negative pressure container of a conventional internal combustion engine.
  • a fuel supply system 1 for an air-compressing injection internal combustion engine 2 essentially consists of a fuel tank 3 with a swirl pot 4, from which a supply line 5 extends and leads to a fuel injection pump 6 designed as a series injection pump.
  • a fuel feed pump 7 and a fuel filter 8 are arranged in the supply line 5, as seen in the flow direction.
  • a device 9 is interposed, which automatically blocks the line section when air is drawn in from the fuel tank 3.
  • the device 9 has a float chamber 10 which contains a pivotably mounted float 11. 2, the pivot bearing 12 is located on a side wall 9a of the device 9.
  • a check valve 13 is articulated on the float 11 and, when air is drawn in, closes the funnel-shaped opening 5a ′ of the line section 5a in the float chamber 10 near the floor.
  • the check valve 13 has a conical seat surface 13a which is adapted to the funnel shape of the line section 5a.
  • the inlet-side fuel inlet 5a "of the line section 5a opens into the float chamber 10 above the float 11.
  • a line 14 for the air discharge leads away from the area of the float chamber 10 on the cover side and is connected to the fuel tank 3.
  • 15 denotes a return line, on the one hand the fuel injection pump 6 and on the other hand is connected to the fuel tank 3.
  • the fuel supply system 1 acts in the same way even when using a fuel injection pump 6 designed as a distributor pump, in which the fuel delivery pump 7 is not arranged between the device 9 and the fuel filter 8, but is integrated in the distributor pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP90125069A 1990-03-17 1990-12-21 Kraftstoffversorgungsanlage für eine Diesel-Brennkraftmaschine Ceased EP0447664A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904008609 DE4008609C1 (enrdf_load_stackoverflow) 1990-03-17 1990-03-17
DE4008609 1990-03-17

Publications (1)

Publication Number Publication Date
EP0447664A1 true EP0447664A1 (de) 1991-09-25

Family

ID=6402443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125069A Ceased EP0447664A1 (de) 1990-03-17 1990-12-21 Kraftstoffversorgungsanlage für eine Diesel-Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP0447664A1 (enrdf_load_stackoverflow)
DE (1) DE4008609C1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616041A (en) * 1995-01-17 1997-04-01 Heyco Stamped Products, Inc. Female connector for a plastic molded receptacle and an extension cord
CN100379974C (zh) * 2000-09-20 2008-04-09 三国株式会社 燃料供应装置和用于该燃料供应装置的燃料过滤器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700957A1 (de) * 1997-01-14 1998-07-16 Dolmar Gmbh Entlüftungsvorrichtung für das Kraftstoffversorgungssystem eines Verbrennungsmotors
DE19946659C2 (de) * 1999-09-29 2002-11-14 Siemens Ag Einspritzanlage für eine Brennkraftmaschine
DE19956093B4 (de) * 1999-11-22 2005-03-31 Siemens Ag Kraftstoff-Fördereinrichtung für ein Common-Rail-Einspritzsystem
JP2010138776A (ja) * 2008-12-11 2010-06-24 Mitsubishi Electric Corp 燃料供給装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1433875A (en) * 1972-08-18 1976-04-28 Bishop B L H Liquid supply and measuring systems
FR2331692A1 (fr) * 1975-11-13 1977-06-10 Bridgemore Eng Ltd Dispositif pour purger de l'air
GB1524957A (en) * 1975-10-31 1978-09-13 Bridgemore Eng Ltd Air bleeding device for unse in apressurised liquid syste
DE2724840A1 (de) * 1977-06-02 1978-12-14 Volkswagenwerk Ag Anordnung mit einem kraftstofftank fuer ein fahrzeug
DE2952016A1 (de) * 1979-12-22 1981-06-25 Daimler-Benz Ag, 7000 Stuttgart Kraftstoffilter fuer luftverdichtende einspritzbrennkraftmaschinen
US4715345A (en) * 1985-07-18 1987-12-29 Reames Jr Carter Automatic fuel shut off system for fuel-injected engines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952133C2 (de) * 1979-12-22 1983-02-03 Pierburg Gmbh & Co Kg, 4040 Neuss Anordnung an der Schwimmerkammer eines Vergasers für Brennkraftmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1433875A (en) * 1972-08-18 1976-04-28 Bishop B L H Liquid supply and measuring systems
GB1524957A (en) * 1975-10-31 1978-09-13 Bridgemore Eng Ltd Air bleeding device for unse in apressurised liquid syste
FR2331692A1 (fr) * 1975-11-13 1977-06-10 Bridgemore Eng Ltd Dispositif pour purger de l'air
DE2724840A1 (de) * 1977-06-02 1978-12-14 Volkswagenwerk Ag Anordnung mit einem kraftstofftank fuer ein fahrzeug
DE2952016A1 (de) * 1979-12-22 1981-06-25 Daimler-Benz Ag, 7000 Stuttgart Kraftstoffilter fuer luftverdichtende einspritzbrennkraftmaschinen
US4715345A (en) * 1985-07-18 1987-12-29 Reames Jr Carter Automatic fuel shut off system for fuel-injected engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616041A (en) * 1995-01-17 1997-04-01 Heyco Stamped Products, Inc. Female connector for a plastic molded receptacle and an extension cord
CN100379974C (zh) * 2000-09-20 2008-04-09 三国株式会社 燃料供应装置和用于该燃料供应装置的燃料过滤器

Also Published As

Publication number Publication date
DE4008609C1 (enrdf_load_stackoverflow) 1991-03-07

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