EP0316331A1 - Dispositif d'injection pour l'introduction de carburants dans la chambre de combustion de moteurs a combustion interne. - Google Patents

Dispositif d'injection pour l'introduction de carburants dans la chambre de combustion de moteurs a combustion interne.

Info

Publication number
EP0316331A1
EP0316331A1 EP87904836A EP87904836A EP0316331A1 EP 0316331 A1 EP0316331 A1 EP 0316331A1 EP 87904836 A EP87904836 A EP 87904836A EP 87904836 A EP87904836 A EP 87904836A EP 0316331 A1 EP0316331 A1 EP 0316331A1
Authority
EP
European Patent Office
Prior art keywords
fuel
pressure
injection
injection device
additional
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
EP87904836A
Other languages
German (de)
English (en)
Other versions
EP0316331B1 (fr
Inventor
Ludwig Elsbett
Guenter Elsbett
Klaus Elsbett
Konrad Weigel
Lutz Guenther
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
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87904836T priority Critical patent/ATE63780T1/de
Publication of EP0316331A1 publication Critical patent/EP0316331A1/fr
Application granted granted Critical
Publication of EP0316331B1 publication Critical patent/EP0316331B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • 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

  • Injection device for introducing fuels into the combustion chamber of an internal combustion engine
  • the invention relates to an injection device for introducing fuels into the combustion chamber of an internal combustion engine;
  • Existing devices of common injection technology which may be considered prior art, such as pump element, pressure relief valve, injection nozzle, pressure line, etc., which have previously only been used to introduce one fuel, are to be used.
  • Another solution is based on mixing other fuels in the injection pump and only then feeding them into the injection line (DE-PS 29 32 325).
  • the introduction of the alternative fuels works via a separate pump, which builds up the pressure necessary to convey alternative fuels into the area between the pressure relief valve chamber of this pump and the nozzle needle valve chamber of the nozzle during the relaxation phase of the injection pump of the injection system .
  • the desired amount of the alternative fuel to be introduced depends on the size of the relief valve, the fuel elasticity and the pressure of the pump and can be designed according to these parameters so that, for. B. a fuel mixture of main and alternative fuels is formed or only alternative fuels or only one alternative fuel are introduced.
  • the alternative fuel (s) are required to ignite the internal combustion engine, it is advisable to regulate the amount of fuel to be introduced into the injection system so that it corresponds exactly to the amount injected at this speed.
  • the main fuel coming from the injection pump has an oscillating effect, the fuel only moving in front of it, which in the injection phase by the pressure of the injection pump in one direction and the pressure relief phase of the injection pump by the feed pump of the alternative fuel (s) is pushed back again.
  • a device can be attached which connects the switching off of the internal combustion engine with a brief delivery of the alternative fuel, so that alternati ⁇ ver for the starting process of the internal combustion engine There is fuel at the nozzle needle tip.
  • Figure 1 shows an injection device consisting in a manner known per se of an injection pump, injection line and injection nozzle.
  • a pump plunger (11) oscillates in the pump element (1). Via the fuel connection (10), the fuel flows through a bore (16) into the pump element (1) until the lifting pump plunger (11) covers this bore with its upper edge, so that the connection between the connection (10) and the room (19) above the pump ram (11) is interrupted.
  • connection (7) is installed in addition to the leakage oil connection (8) which is already present.
  • FIG. 2 shows that this connection (8) can also be used directly to introduce a fuel instead of (7). If this connection is blocked, the leakage is automatically conveyed back into the pressure line (4) when its pressure exceeds the stand pressure in the line (4).
  • Figure 3 shows that the addition of fuel is introduced via a connection (7) via a check valve (14), first into the space (5) of the nozzle spring, from where it in the above manner outlined in the pressure line (4), passes .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

La partie haute pression de pompes d'injection et d'injecteurs de moteurs diesel n'est sous une haute pression que pendant un certain cycle. La plupart du temps, la conduite à haute pression (4) est détendue. Pendant ce temps, un deuxième carburant peut être introduit par un raccord supplémentaire (7) dans la partie haute pression, dans la mesure où le carburant qui y est déjà contenu se laisse comprimer sans ouvrir l'injecteur (6, 3, 12). Les cycles à haute pression suivants font avancer graduellement ce deuxième carburant jusqu'à l'ouverture de l'injecteur.
EP87904836A 1986-07-30 1987-07-24 Dispositif d'injection pour l'introduction de carburants dans la chambre de combustion de moteurs a combustion interne Expired - Lifetime EP0316331B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87904836T ATE63780T1 (de) 1986-07-30 1987-07-24 Einspritzvorrichtung zum einbringen von kraftstoffen in den brennraum einer brennkraftmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3625716 1986-07-30
DE3625716 1986-07-30

Publications (2)

Publication Number Publication Date
EP0316331A1 true EP0316331A1 (fr) 1989-05-24
EP0316331B1 EP0316331B1 (fr) 1991-05-22

Family

ID=6306273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87904836A Expired - Lifetime EP0316331B1 (fr) 1986-07-30 1987-07-24 Dispositif d'injection pour l'introduction de carburants dans la chambre de combustion de moteurs a combustion interne

Country Status (8)

Country Link
US (1) US4825830A (fr)
EP (1) EP0316331B1 (fr)
AU (1) AU7753987A (fr)
BR (1) BR8704171A (fr)
DE (1) DE3770275D1 (fr)
MX (1) MX161561A (fr)
RU (1) RU1838658C (fr)
WO (1) WO1988001019A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241935A (en) * 1988-02-03 1993-09-07 Servojet Electronic Systems, Ltd. Accumulator fuel injection system
DE4422552C1 (de) * 1994-06-28 1995-11-30 Daimler Benz Ag Verfahren zum Einspritzen von Kraftstoff in den Brennraum einer Brennkraftmaschine
US5537972A (en) * 1994-07-28 1996-07-23 Servojet Electronics Systems Fuel injection system having a pressure intensifier incorporating an overtravel safety feature
US5833146A (en) * 1996-09-09 1998-11-10 Caterpillar Inc. Valve assembly with coupled seats and fuel injector using same
DE19650559C1 (de) 1996-12-05 1998-03-26 Mtu Friedrichshafen Gmbh Anschlußelement zum Einleiten von Brennstoff und einem zweiten Fluid in ein Einspritzventil
DE19823335C2 (de) * 1998-05-26 2001-05-31 Elsbett G Einspritzsystem für den Betrieb mit unterschiedlichen Kraftstoffen
US8191534B2 (en) * 2008-02-28 2012-06-05 General Electric Company High viscosity fuel injection pressure reduction system and method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE517292C (de) * 1929-11-23 1931-02-03 Heinrich Lanz Ag Vorrichtung zum Foerdern verschiedenartiger Fluessigkeiten mittels einer einzigen Pumpe und einer einzigen Druckleitung mit nur einem Druckventil
DE925139C (de) * 1950-03-05 1955-03-14 Siegfried Dr-Ing Meurer Verfahren und Vorrichtung zum Einspritzen von Zusatzstoffen in Dieselmotoren
DE969853C (de) * 1952-12-25 1958-07-24 Maschf Augsburg Nuernberg Ag Einrichtung zur Verwendung verschiedener Brennstoffarten und -mengen bei Einspritzduesen von Brennkraftmaschinen
FR1313716A (fr) * 1960-01-22 1963-01-04 Inst Francais Du Petrole Nouveau dispositif d'injection
GB1061996A (en) * 1963-08-28 1967-03-15 Od I Inginerov Morskovo Flota A valve unit for diesel engine injection systems
US3308794A (en) * 1964-12-21 1967-03-14 Caterpillar Tractor Co Engine fuel system
JPS5113806B2 (fr) * 1971-10-20 1976-05-04
DE2715137A1 (de) * 1977-04-05 1978-10-19 Daimler Benz Ag Kraftstoffeinspritzanlage fuer luftverdichtende brennkraftmaschinen
ES477347A1 (es) * 1978-03-21 1979-10-16 Lucas Industries Ltd Sistema de combustible para un motor de combustion interna policilindrico.
DE2922682A1 (de) * 1979-06-02 1980-12-04 Daimler Benz Ag Einspritzduese fuer luftverdichtende einspritzbrennkraftmaschinen
US4612905A (en) * 1980-01-26 1986-09-23 Motoren-Werke Mannheim Ag, Vorm. Benz Stat. Motorenba Fuel injection apparatus
DE3012418A1 (de) * 1980-03-29 1981-10-08 Klöckner-Humboldt-Deutz AG, 5000 Köln Kraftstoffeinspritzventil fuer brennkraftmaschinen
DE3117796A1 (de) * 1981-05-06 1982-11-25 Klöckner-Humboldt-Deutz AG, 5000 Köln Einspritzsystem zum einspritzen zweier brennstoffe durch eine einspritzduese
US4481921A (en) * 1982-05-26 1984-11-13 Nippondenso Co., Ltd. Fuel injection apparatus of internal combustion engine
IT1189339B (it) * 1982-08-18 1988-02-04 Edoardo Costarelli Essiccatore a coclea,in particolar modo per materiali plastici
GB2126650B (en) * 1982-08-31 1988-02-10 George Stan Baranescu I c engine injection system providing a stratified charge of two fuels
JPS61171874A (ja) * 1985-01-28 1986-08-02 Nippon Denso Co Ltd ２種燃料噴射装置
US4693227A (en) * 1985-05-21 1987-09-15 Toyota Jidosha Kabushiki Kaisha Multi-fuel injection system for an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8801019A1 *

Also Published As

Publication number Publication date
US4825830A (en) 1989-05-02
EP0316331B1 (fr) 1991-05-22
WO1988001019A1 (fr) 1988-02-11
DE3770275D1 (de) 1991-06-27
BR8704171A (pt) 1988-04-12
MX161561A (es) 1990-11-06
RU1838658C (ru) 1993-08-30
AU7753987A (en) 1988-02-24

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