FR2331693A2 - IC engine fuel injection system - has injector with two, phase-displaced electromagnetic valves to regulate feed - Google Patents

IC engine fuel injection system - has injector with two, phase-displaced electromagnetic valves to regulate feed

Info

Publication number
FR2331693A2
FR2331693A2 FR7634256A FR7634256A FR2331693A2 FR 2331693 A2 FR2331693 A2 FR 2331693A2 FR 7634256 A FR7634256 A FR 7634256A FR 7634256 A FR7634256 A FR 7634256A FR 2331693 A2 FR2331693 A2 FR 2331693A2
Authority
FR
France
Prior art keywords
valve
pressure
fuel
phase
actuated
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.)
Pending
Application number
FR7634256A
Other languages
French (fr)
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 FR2331693A2 publication Critical patent/FR2331693A2/en
Pending 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
    • F02M63/00—Other 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-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
    • F02M47/025—Hydraulically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-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
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0047—Four-way valves or valves with more than four ways
    • 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
    • F02M63/00—Other 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
    • F02M63/0012—Valves
    • F02M63/0059—Arrangements of valve actuators
    • F02M63/0064—Two or more actuators acting on two or more valve bodies
    • 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
    • F02M63/00—Other 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
    • F02M63/02—Fuel-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
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

The fuel injector has two phase-displaced electro magnets (14a, 14b) to achieve the shortest possible injection time. The needle valve chamber (33) is supplied with fuel at a constant pressure from a storage container via an inlet passage (11). The needle valve is held on its seat by a plunger (37), subject to hydraulic pressure from a second union (12) with the high pressure storage tank (1). The hydraulic pressure is released allowing the fluid to return to the fuel tank (13) by a needle valve (43). The hydraulic pressure is applied by a second needle valve (42). The two valves (42) are actuated in counter stroke by their respective plungers (44). Fuel pressure from an auxiliary pressure circuit enters a first sliding valve (50) actuated by a first magnet (14a). The valve is a conventional two way valve with a stepped piston (51, 52). The valve outlets are connected to a second two way valve actuated by a second electro magnet (14b).
FR7634256A 1975-11-15 1976-11-15 IC engine fuel injection system - has injector with two, phase-displaced electromagnetic valves to regulate feed Pending FR2331693A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752551463 DE2551463A1 (en) 1975-11-15 1975-11-15 FUEL INJECTION DEVICE FOR COMBUSTION MACHINERY

Publications (1)

Publication Number Publication Date
FR2331693A2 true FR2331693A2 (en) 1977-06-10

Family

ID=5961893

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7634256A Pending FR2331693A2 (en) 1975-11-15 1976-11-15 IC engine fuel injection system - has injector with two, phase-displaced electromagnetic valves to regulate feed

Country Status (5)

Country Link
JP (2) JPS5261641A (en)
DE (1) DE2551463A1 (en)
DK (1) DK145391C (en)
FR (1) FR2331693A2 (en)
IT (1) IT1073976B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471483A1 (en) * 1979-12-14 1981-06-19 Renault Vehicules Ind FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
FR2486157A1 (en) * 1980-07-02 1982-01-08 Maschf Augsburg Nuernberg Ag Fuel injection system for IC engine - includes hydraulically operated valves controlled by electronic microprocessor receiving engine input signals
EP0050710A1 (en) * 1980-10-23 1982-05-05 Robert Bosch Gmbh Fuel injection system
EP0089301A1 (en) * 1982-03-16 1983-09-21 RENAULT VEHICULES INDUSTRIELS Société dite: Injection control system for diesel engines
EP1843037A1 (en) * 2006-04-03 2007-10-10 Denso Corporation Fuel injection valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH668621A5 (en) * 1986-01-22 1989-01-13 Dereco Dieselmotoren Forschung FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE.
DE19843768C1 (en) * 1998-09-24 2000-03-09 Mannesmann Vdo Ag Fuel feed pressure regulator for internal combustion engine has pressure regulating valve in return pipe controlled by regulator between feed and return pipes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2150099A1 (en) * 1970-10-07 1972-05-25 Hitachi Ltd Fuel injection system
DD113260A1 (en) * 1974-07-08 1975-05-20 Karl Marx Stadt Automobilbau
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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471483A1 (en) * 1979-12-14 1981-06-19 Renault Vehicules Ind FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
EP0030907A1 (en) * 1979-12-14 1981-06-24 RENAULT VEHICULES INDUSTRIELS Société dite: Fuel injection device for an internal-combustion engine
FR2486157A1 (en) * 1980-07-02 1982-01-08 Maschf Augsburg Nuernberg Ag Fuel injection system for IC engine - includes hydraulically operated valves controlled by electronic microprocessor receiving engine input signals
EP0050710A1 (en) * 1980-10-23 1982-05-05 Robert Bosch Gmbh Fuel injection system
EP0089301A1 (en) * 1982-03-16 1983-09-21 RENAULT VEHICULES INDUSTRIELS Société dite: Injection control system for diesel engines
FR2523647A1 (en) * 1982-03-16 1983-09-23 Renault Vehicules Ind SYSTEM FOR CONTROLLING INJECTION ON A DIESEL ENGINE
EP1843037A1 (en) * 2006-04-03 2007-10-10 Denso Corporation Fuel injection valve
US7703708B2 (en) 2006-04-03 2010-04-27 Denso Corporation Fuel injection valve

Also Published As

Publication number Publication date
DE2551463A1 (en) 1977-05-18
JPS5261641A (en) 1977-05-21
DE2551463C2 (en) 1990-08-09
IT1073976B (en) 1985-04-17
JPS5993934A (en) 1984-05-30
DK145391B (en) 1982-11-08
DK494076A (en) 1977-05-16
DK145391C (en) 1983-04-05
JPS6215739B2 (en) 1987-04-09

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