FR2457985A1 - FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES - Google Patents

FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES

Info

Publication number
FR2457985A1
FR2457985A1 FR8011686A FR8011686A FR2457985A1 FR 2457985 A1 FR2457985 A1 FR 2457985A1 FR 8011686 A FR8011686 A FR 8011686A FR 8011686 A FR8011686 A FR 8011686A FR 2457985 A1 FR2457985 A1 FR 2457985A1
Authority
FR
France
Prior art keywords
internal combustion
combustion engines
needle
supplied
fuel
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
FR8011686A
Other languages
French (fr)
Other versions
FR2457985B3 (en
Inventor
Gunter Kattenbusch
Kurt Koschel
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg 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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of FR2457985A1 publication Critical patent/FR2457985A1/en
Application granted granted Critical
Publication of FR2457985B3 publication Critical patent/FR2457985B3/fr
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure

Landscapes

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

Abstract

L'INVENTION CONCERNE UN DISPOSITIF D'INJECTION DE CARBURANT POUR MOTEURS A COMBUSTION INTERNE. L'INJECTEUR 1 EST ALIMENTE EN CARBURANT A HAUTE PRESSION DELIVRE PAR UN ACCUMULATEUR ET PILOTE PAR UN CIRCUIT DE SERVO-COMMANDE 37-43. POUR EVITER QUE L'ACCUMULATEUR NE SE VIDE SI UN POINTEAU 15 RESTE LEVE, UNE VALVE DE SURETE 47, DONT L'OBTURATEUR 48 EST DISPOSE DANS LE TUYAU D'AMENEE 31 DU CARBURANT A LA PRECHAMBRE 14 D'INJECTION, FERME CELUI-CI LORSQUE LE POINTEAU 15 EST APPLIQUE SUR SON SIEGE. UN PISTON DE POUSSEE 49, SOLLICITE PAR LA MISE EN PRESSION D'UNE CHAMBRE 55 ALIMENTEE PAR UNE CONDUITE 63 RELIEE A LA SORTIE DE L'ELECTROVALVE 37 COMMANDEE EN SYNCHRONISME AVEC LE MOTEUR, PERMET D'OUVRIR LA VALVE DE SURETE 47 PEU AVANT QU'UNE CHAMBRE DE PRESSION 16 SOIT EGALEMENT ALIMENTEE PAR L'ELECTROVALVE 47, DE SORTE QUE LE POINTEAU 15 SOIT LEVE SOUS L'EFFET DE LA PRESSION DE CARBURANT S'EXERCANT SUR LES SURFACES 44 ET 45 CONTRE L'EFFET DE CETTE MEME PRESSION SUR LA SURFACE 46 D'UN PISTON DE COMMANDE 18. APPLICATION AUX MOTEURS A COMBUSTION INTERNE.THE INVENTION RELATES TO A FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES. INJECTOR 1 IS SUPPLIED WITH HIGH PRESSURE FUEL DELIVERED BY AN ACCUMULATOR AND PILOT BY A 37-43 SERVO-CONTROL CIRCUIT. TO PREVENT THE ACCUMULATOR FROM EMPTYING IF A NEEDLE 15 REMAINS LIFTED, A SAFETY VALVE 47, WHICH SHUTTER 48 IS PLACED IN THE FUEL PIPE 31 TO THE INJECTION PREAMBER 14, CLOSES THIS ONE WHEN THE NEEDLE 15 IS APPLIED TO ITS SEAT. A PUSHING PISTON 49, REQUESTED BY PRESSURING A CHAMBER 55 SUPPLIED BY A DUCT 63 CONNECTED TO THE OUTPUT OF THE SOLENOID VALVE 37 CONTROLLED IN SYNCHRONISM WITH THE MOTOR, ALLOWS TO OPEN THE SAFETY VALVE 47 SHORTLY BEFORE 'A PRESSURE CHAMBER 16 IS ALSO SUPPLIED BY THE ELECTROVALVE 47, SO THAT THE NEEDLE 15 IS LIFTED UNDER THE EFFECT OF THE FUEL PRESSURE EXERCISING ON SURFACES 44 AND 45 AGAINST THE EFFECT OF THIS SAME PRESSURE ON THE SURFACE 46 OF A CONTROL PISTON 18. APPLICATION TO INTERNAL COMBUSTION ENGINES.

FR8011686A 1979-06-01 1980-05-27 FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES Granted FR2457985A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792922332 DE2922332C2 (en) 1979-06-01 1979-06-01 Fuel injection device for internal combustion engines

Publications (2)

Publication Number Publication Date
FR2457985A1 true FR2457985A1 (en) 1980-12-26
FR2457985B3 FR2457985B3 (en) 1982-01-29

Family

ID=6072240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011686A Granted FR2457985A1 (en) 1979-06-01 1980-05-27 FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES

Country Status (7)

Country Link
JP (1) JPS55161954A (en)
DD (1) DD148080A1 (en)
DE (1) DE2922332C2 (en)
DK (1) DK229280A (en)
FR (1) FR2457985A1 (en)
GB (1) GB2051229B (en)
NL (1) NL7908909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524073A1 (en) * 1982-03-29 1983-09-30 Renault ELECTROMAGNETIC INJECTOR FOR A DIESEL ENGINE PROVIDING A "PRESSURE-TIME" INJECTION LAW

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009750C2 (en) * 1980-03-14 1987-01-02 M.A.N.- B & W Diesel GmbH, 8900 Augsburg Fuel injection device for internal combustion engines
DE3009752C2 (en) * 1980-03-14 1987-01-02 M.A.N.- B & W Diesel GmbH, 8900 Augsburg Fuel injection device for internal combustion engines
FR2502701A1 (en) * 1981-03-26 1982-10-01 Renault Vehicules Ind INJECTOR INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
US4474158A (en) * 1981-11-11 1984-10-02 Lucas Industries Public Limited Company Liquid fuel pumping apparatus
FR2580728B1 (en) * 1985-04-19 1989-05-05 Alsacienne Constr Meca FUEL INJECTION SYSTEM FOR DIESEL ENGINE
JP2554736B2 (en) * 1989-03-20 1996-11-13 川崎重工業株式会社 Fuel injection device for internal combustion engine
DE19742320A1 (en) * 1997-09-25 1999-04-01 Bosch Gmbh Robert Fuel injector
DE19860476A1 (en) * 1998-12-28 2000-07-06 Bosch Gmbh Robert Fuel injection system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH186053A (en) * 1934-12-05 1936-08-31 Limited Belfrost Diesels Fuel injection pump.
DE905689C (en) * 1952-01-17 1954-03-04 Maschf Augsburg Nuernberg Ag Device for generating different control times when using a pressurized fluid from a common pressure source, in particular for fuel injection valves of internal combustion engines
GB1347488A (en) * 1970-07-10 1974-02-27 Cav Ltd Liquid fuel injection pumping apparatus for an 'internal combustion engine
DE2529933C2 (en) * 1975-07-04 1984-07-19 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Fuel injection device for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524073A1 (en) * 1982-03-29 1983-09-30 Renault ELECTROMAGNETIC INJECTOR FOR A DIESEL ENGINE PROVIDING A "PRESSURE-TIME" INJECTION LAW

Also Published As

Publication number Publication date
JPS55161954A (en) 1980-12-16
FR2457985B3 (en) 1982-01-29
DE2922332C2 (en) 1987-02-05
DK229280A (en) 1980-12-02
GB2051229B (en) 1983-04-07
DE2922332A1 (en) 1980-12-04
GB2051229A (en) 1981-01-14
NL7908909A (en) 1980-12-03
DD148080A1 (en) 1981-05-06

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