EP1326020A2 - Dispositif d'alimentation de carburant pour moteurs à combustion interne - Google Patents

Dispositif d'alimentation de carburant pour moteurs à combustion interne Download PDF

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Publication number
EP1326020A2
EP1326020A2 EP02027602A EP02027602A EP1326020A2 EP 1326020 A2 EP1326020 A2 EP 1326020A2 EP 02027602 A EP02027602 A EP 02027602A EP 02027602 A EP02027602 A EP 02027602A EP 1326020 A2 EP1326020 A2 EP 1326020A2
Authority
EP
European Patent Office
Prior art keywords
fuel
supply device
high pressure
fuel supply
pressure generator
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
EP02027602A
Other languages
German (de)
English (en)
Other versions
EP1326020B1 (fr
EP1326020A3 (fr
Inventor
Georg Gruber
Alois Dotzer
Thomas Kaiser
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.)
Individual
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Individual
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Publication date
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Application filed by Individual filed Critical Individual
Publication of EP1326020A2 publication Critical patent/EP1326020A2/fr
Publication of EP1326020A3 publication Critical patent/EP1326020A3/fr
Application granted granted Critical
Publication of EP1326020B1 publication Critical patent/EP1326020B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
    • 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • F02M55/001—Pumps with means for preventing erosion on fuel discharge
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/54—Arrangement of fuel pressure regulators
    • 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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons

Definitions

  • the invention relates to a fuel supply device for Internal combustion engines according to the preamble of claim 1.
  • a fuel supply is described in DE 197 36 283 A1 is specially designed for the use of a distributor pump.
  • the With this supply system fuel is supplied by one in the Distributor pump integrated suction pump conveyed from the tank and the actual high pressure pump supplied. This compresses the fuel and distribute it to the individual cylinders. To a great extent even after a cold start will quickly have preheated fuel available excess fuel from the distributor pump via a Circulation line immediately returned to the pump inlet. This already compressed and warmed fuel mixes here with a small amount of cold fuel from the tank.
  • Compressor systems have recently become available for fuel injection used that compress the fuel to over 1000 bar. These systems tend to overheat and therefore have to be constantly cooled.
  • the Necessary cooling is usually realized in that a Backing pump a multiple of that required by the high pressure pump Fuel promotes. The excess leads the heat from the high pressure pump and is returned to the tank.
  • Such high pressure pumps have has proven itself well and in the meantime when used as intended has reached a sufficient service life. After changing the fuel filter there was an increased number when the business resumed Loss ratio.
  • Fine air bubbles in the fuel supply system can also get through improper hose connections, not tightened Screws, from marten bites in hoses or from other leaks caused.
  • such air bubbles are very difficult Remove from tough, low-viscosity fuels. Even emptying the Fuel tank leads to the same phenomenon. In all of these cases it can cause significant damage to the high pressure pump or even damage it their destruction are coming.
  • the intermediate fuel store is included Gas separation function directly before the high pressure generator and after the Fuel filter provided. This way everyone can Air pockets, including those caused by a filter change, be removed.
  • the fuel delivered to cool the pump is already too high preheated and should be used especially for the cold start process - instead to flow back to the tank unused - back to the high pressure generator To be available. This fuel is therefore in the upper range of the Fuel buffer initiated.
  • a line emerging from the fuel filter also opens into the upper area of the fuel buffer. Maybe with air mixed fuel remains until its segregation due to its lower specific gravity in this upper area, during the deflated, heavy, pure fuel in the lower area of the Fuel storage tank drops. From this lower area the Fuel removed and fed to the high pressure generator. A thrush and a pressure relief valve for the return of excess and fuel may be too hot through a return line to the tank are provided at the upper end of the fuel buffer. To the Air supply to the high pressure generator among all Avoiding operating conditions is in the fuel buffer a level sensor is provided. This level sensor produces advantageously Way an alarm signal when the fuel level in the Fuel buffer falls below a predetermined minimum.
  • the only figure shows a schematic representation of the fuel supply device according to the invention.
  • a fuel line 13 whose open end in the lower region of the fuel tank 1 with a Pre-filter 12 is covered with the fuel pump 2 in Connection. This promotes the intake fuel through the Fuel preheater 3 and pushes it through a fine fuel filter 4. From there it becomes the upper area of the fuel buffer store 5 fed.
  • the Fuel removed again and one via line 11 High pressure generator 9, here one Radial piston high pressure distributor injection pump supplied.
  • a vane pump is integrated in pumps of this type should ensure safe filling of the radial piston and a multiple of that Injection required injection quantity promotes. This in excess Pumped fuel is used to cool the pump and is supplied via the line 10 returned to the upper area of the intermediate fuel store 5.
  • the fuel buffer 5 fills up quickly with not too warm and therefore relatively viscous fuel.
  • the Choke 6 is designed so that it quickly in these operating conditions builds up a high pressure in the fuel buffer, which ensures that fuel reaches the injection pump 9 in sufficient quantity.
  • a second sensor 15 provided in time for air to enter the supply line 11 switches off the internal combustion engine to the high pressure generator 9. This leaves both with a complete tank emptying and with a Damage to the fuel supply system safely prevents air from entering the high pressure generator and thus damage or destruction prevented the same.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP20020027602 2001-12-10 2002-12-10 Dispositif d'alimentation de carburant pour moteurs à combustion interne Expired - Fee Related EP1326020B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001160560 DE10160560A1 (de) 2001-12-10 2001-12-10 Kraftstoffzuführeinrichtung für Brennkraftmaschinen
DE10160560 2001-12-10

Publications (3)

Publication Number Publication Date
EP1326020A2 true EP1326020A2 (fr) 2003-07-09
EP1326020A3 EP1326020A3 (fr) 2004-09-08
EP1326020B1 EP1326020B1 (fr) 2006-07-26

Family

ID=7708643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020027602 Expired - Fee Related EP1326020B1 (fr) 2001-12-10 2002-12-10 Dispositif d'alimentation de carburant pour moteurs à combustion interne

Country Status (2)

Country Link
EP (1) EP1326020B1 (fr)
DE (2) DE10160560A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012099920A1 (fr) * 2011-01-18 2012-07-26 Federal-Mogul Corporation Circuit d'alimentation en diesel à amorçage avancé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049582B4 (de) 2007-10-15 2009-07-23 Rapstruck Pflanzenöltechnologie GmbH Vorrichtung zum Anschluß eines Dieselmotors an zwei Tanks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736283A1 (de) 1997-08-21 1999-02-25 Brand Wolfgang Kraftstoffversorgung für eine dieselmotorisch betriebene Brennkraftmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3424881C2 (de) * 1984-07-06 1997-08-14 Bosch Gmbh Robert Kraftstoffeinspritzpumpe für Brennkraftmaschinen
DE3530970C2 (de) * 1985-08-30 1995-05-11 Vdo Schindling Kraftstoffanlage
US5740784A (en) * 1995-05-25 1998-04-21 Pleasurecraft Marine Engine Co. Fuel control system
JPH11257188A (ja) * 1998-03-10 1999-09-21 Hitachi Ltd 燃料リターンバルブ
JP2000130279A (ja) * 1998-10-21 2000-05-09 Toyota Motor Corp 内燃機関の高圧燃料供給装置
DE19956093B4 (de) * 1999-11-22 2005-03-31 Siemens Ag Kraftstoff-Fördereinrichtung für ein Common-Rail-Einspritzsystem
US6253741B1 (en) * 2000-01-19 2001-07-03 Ford Global Technologies, Inc. System for preventing fuel pump air ingestion
DE10026373A1 (de) * 2000-05-27 2001-11-29 Volkswagen Ag Hochdruck-Kraftstoffeinspritzanlage für eine Brennkraftmaschine
US6527947B1 (en) * 2000-09-18 2003-03-04 Ford Global Technologies, Inc. Fuel control device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736283A1 (de) 1997-08-21 1999-02-25 Brand Wolfgang Kraftstoffversorgung für eine dieselmotorisch betriebene Brennkraftmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012099920A1 (fr) * 2011-01-18 2012-07-26 Federal-Mogul Corporation Circuit d'alimentation en diesel à amorçage avancé
US9316187B2 (en) 2011-01-18 2016-04-19 Carter Fuel Systems, Llc Diesel fuel system with advanced priming

Also Published As

Publication number Publication date
DE10160560A1 (de) 2003-06-26
DE50207627D1 (de) 2006-09-07
EP1326020B1 (fr) 2006-07-26
EP1326020A3 (fr) 2004-09-08

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