GB1427995A - Fuel feed control device for internal combustion engine - Google Patents

Fuel feed control device for internal combustion engine

Info

Publication number
GB1427995A
GB1427995A GB594373A GB594373A GB1427995A GB 1427995 A GB1427995 A GB 1427995A GB 594373 A GB594373 A GB 594373A GB 594373 A GB594373 A GB 594373A GB 1427995 A GB1427995 A GB 1427995A
Authority
GB
United Kingdom
Prior art keywords
valve
coil
coils
opening
current
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.)
Expired
Application number
GB594373A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1427995A publication Critical patent/GB1427995A/en
Expired 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0675—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • F02M51/0617—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets
    • F02M51/0621—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets acting on one mobile armature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2044—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using pre-magnetisation or post-magnetisation of the coils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2072—Bridge circuits, i.e. the load being placed in the diagonal of a bridge to be controlled in both directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2079—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements the circuit having several coils acting on the same anchor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2082—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements the circuit being adapted to distribute current between different actuators or recuperate energy from actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/22—Connectors or cables specially adapted for engine management applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

1427995 IC engine fuel injectors HITACHI Ltd 7 Feb 1973 [3 March 1972] 5943/73 [Also in Divisions H1 and H3] The opening and closing times of an electromagnetically opened I.C. engine fuel injection valve are reduced by providing the electromagnet with at least two coils and providing control means so arranged that at least one of the coils is capable of producing magnetic flux in such a direction as to close the valve, and at least one other, or the other, coil is capable of producing a magnetic flux which is only sufficient to hold the valve open once it has been opened (i.e., a holding flux), the control means being so arranged and connected to the coils that when the valve is to be opened, a holding current can first be passed through the one or the other coil to produce a holding flux, then an opening current can be passed through one of the coils to produce a flux sufficient to open the valve, and when the valve is to be closed, a current can be passed through the one coil which is such as to close the valve. Three separate coils, Fig. 7 (not shown) may be provided for the holding, opening and closing fluxes. Instead, two coils 22A, 22B, Fig. 6, may be provided. Prior to opening of the valve, coil 22A is energized via a control transistor 25C and a resistor 3, the resistor limiting the current to a value which is insufficient to open the valve but would be sufficient to hold the valve open if it were already open. When the valve is to be opened, a control pulse is applied to a transistor 25A to increase the current temporarily to a value which effects opening of the valve. Thereafter, the valve is held open by the current supplied via the transistor 25C. When the valve is to be closed, a brief control pulse is applied to a transistor 25B to energize coil 22B which is wound in antiphase to the coil 22A, and at the same time a longer control pulse is applied to turn off the transistor 25C. The tendency of coil 22B to reverse the magnetic flux established by coil 22A assists the rapid collapse of the flux and hence rapid closing of the valve. In Fig. 5, coil 12A is used exclusively for the hold current, controlled by transistor 15E, while coil 12B receives both the opening pulse via transistors 15A, 15B and, in the opposite direction, the closing pulse via transistors 15C, 15D. In Fig. 8 (not shown), the circuit is rearranged so as to eliminate one of the opening transistors. Fig. 10 shows an injector valve having two coils 127A, 127B, one of which is the hold coil. After the return spring 130 has been adjusted by sliding an adjuster 124 longitudinally by means of a tool, the core 121 is caulked against the adjuster to hold it in place. Filter 122 is then inserted.
GB594373A 1972-03-03 1973-02-07 Fuel feed control device for internal combustion engine Expired GB1427995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2150472A JPS5032897B2 (en) 1972-03-03 1972-03-03

Publications (1)

Publication Number Publication Date
GB1427995A true GB1427995A (en) 1976-03-10

Family

ID=12056787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB594373A Expired GB1427995A (en) 1972-03-03 1973-02-07 Fuel feed control device for internal combustion engine

Country Status (2)

Country Link
JP (1) JPS5032897B2 (en)
GB (1) GB1427995A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433108A1 (en) * 1978-08-11 1980-03-07 Bosch Gmbh Robert ELECTROMAGNETIC RECEIVER SERVO LOCKING DEVICE, IN PARTICULAR ELECTROMAGNETIC INJECTORS FOR INTERNAL COMBUSTION ENGINES
EP0049188A2 (en) * 1980-10-01 1982-04-07 The Bendix Corporation Driver circuit for a fuel injector
GB2150368A (en) * 1983-11-15 1985-06-26 Solex Fuel injection control apparatus
WO2001066933A1 (en) * 2000-03-08 2001-09-13 Hitachi, Ltd. Electromagnetic type fuel injection valve
EP1701026A1 (en) * 2005-03-09 2006-09-13 Siemens Aktiengesellschaft Method for controlling a solenoid injector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5310746Y2 (en) * 1975-04-26 1978-03-23
JPS5267116A (en) * 1975-10-22 1977-06-03 Kiyotaka Miyoshi Fitting method of smoke preventive hanging wall
US6392865B1 (en) * 2000-03-31 2002-05-21 Siemens Automotive Corporation High-speed dual-coil electromagnetic valve and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433108A1 (en) * 1978-08-11 1980-03-07 Bosch Gmbh Robert ELECTROMAGNETIC RECEIVER SERVO LOCKING DEVICE, IN PARTICULAR ELECTROMAGNETIC INJECTORS FOR INTERNAL COMBUSTION ENGINES
EP0049188A2 (en) * 1980-10-01 1982-04-07 The Bendix Corporation Driver circuit for a fuel injector
EP0049188A3 (en) * 1980-10-01 1983-03-30 The Bendix Corporation Driver circuit for a fuel injector
GB2150368A (en) * 1983-11-15 1985-06-26 Solex Fuel injection control apparatus
WO2001066933A1 (en) * 2000-03-08 2001-09-13 Hitachi, Ltd. Electromagnetic type fuel injection valve
US6834844B1 (en) 2000-03-08 2004-12-28 Hitachi, Ltd. Electromagnetic type fuel injector valve
EP1701026A1 (en) * 2005-03-09 2006-09-13 Siemens Aktiengesellschaft Method for controlling a solenoid injector

Also Published As

Publication number Publication date
JPS4888320A (en) 1973-11-19
DE2306007A1 (en) 1973-09-06
DE2306007B2 (en) 1977-05-18
JPS5032897B2 (en) 1975-10-25

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930205