GB1521641A - Electromagnetic fuel injectors for internal combustion engines and method of manufacturing them - Google Patents

Electromagnetic fuel injectors for internal combustion engines and method of manufacturing them

Info

Publication number
GB1521641A
GB1521641A GB1978/77A GB197877A GB1521641A GB 1521641 A GB1521641 A GB 1521641A GB 1978/77 A GB1978/77 A GB 1978/77A GB 197877 A GB197877 A GB 197877A GB 1521641 A GB1521641 A GB 1521641A
Authority
GB
United Kingdom
Prior art keywords
cone
punch
nozzle
internal combustion
combustion engines
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
GB1978/77A
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.)
Sud Maintenance SARL
Original Assignee
Sud Maintenance SARL
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 Sud Maintenance SARL filed Critical Sud Maintenance SARL
Publication of GB1521641A publication Critical patent/GB1521641A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • 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
    • 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
    • F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Magnetically Actuated Valves (AREA)
  • Nozzles (AREA)

Abstract

1521641 IC engine fuel injectors SUD MAINTENANCE 18 Jan 1977 [20 Jan 1976] 01978/77 Heading F1B [Also in Division B3] A method of producing a body for an electromagnetically actuable fuel injector for internal combustion engines, comprises machining a blind bore 2c terminating in a cone 2d, machining at least one bore 7 for the fuel, electrolytically machining an annular semi-toric cavity 8a, enlarging and truing cone 2d, drilling nozzle 9, and removing the edge between cavity 8a and cone 2d by a punch 18, Fig. 5 (not shown), removing the edge between cone 2d and nozzle 9 by a punch 19, (Fig. 5) and finally contouring profile 6a with a punch 20, Fig. 6 (not shown). The cone apex angles before final contouring are 90, 60 and 30 degrees. Nozzle 9 may be provided by a moulded plastics plate 10, Fig. 2, below the valve seat, as an alternative to drilling the metal block 2b.
GB1978/77A 1976-01-20 1977-01-18 Electromagnetic fuel injectors for internal combustion engines and method of manufacturing them Expired GB1521641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7602334A FR2339067A1 (en) 1976-01-20 1976-01-20 ELECTROMAGNETIC INJECTORS AND METHODS OF MANUFACTURING THE SAME

Publications (1)

Publication Number Publication Date
GB1521641A true GB1521641A (en) 1978-08-16

Family

ID=9168480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1978/77A Expired GB1521641A (en) 1976-01-20 1977-01-18 Electromagnetic fuel injectors for internal combustion engines and method of manufacturing them

Country Status (4)

Country Link
JP (1) JPS5289825A (en)
DE (1) DE2701291A1 (en)
FR (1) FR2339067A1 (en)
GB (1) GB1521641A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029508A (en) * 1978-09-08 1980-03-19 Bendix Corp Fuel injector valve with contoured flow nozzle
EP1640098A2 (en) * 2004-07-02 2006-03-29 Siemens Aktiengesellschaft Method for machining the high strenght sealing surfaces of two metallic components
EP2672101A1 (en) * 2012-06-05 2013-12-11 Caterpillar Motoren GmbH & Co. KG Injection nozzle

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441733A1 (en) * 1978-11-17 1980-06-13 Innota Innovation Tech Avancee ELECTROMAGNETIC INJECTORS AND METHODS OF MAKING THE SAME
CS223201B1 (en) * 1979-12-05 1983-09-15 Ludvik Mateja Facility for machining inner conical surfaces of metal parts
JPS60119363A (en) * 1983-11-30 1985-06-26 Keihin Seiki Mfg Co Ltd Fuel injection valve
DE3810826A1 (en) * 1988-03-30 1989-10-12 Pierburg Gmbh Solenoid injection valve for internal combustion engines
JPH01295087A (en) * 1988-05-21 1989-11-28 Hitachi Ltd Solenoid valve for hydraulic control
US5241938A (en) * 1990-03-14 1993-09-07 Aisan Kogyo Kabushiki Kaisha Injector with assist air passage for atomizing fuel
DE4132196A1 (en) * 1991-09-27 1992-10-22 Daimler Benz Ag Fuel injection nozzle for IC engine - has conical portion which runs into conical portion with sharp edge transition
JP2007000761A (en) * 2005-06-23 2007-01-11 Kioritz Corp Agricultural chemical spray apparatus and spray apparatus
DE102011077198A1 (en) * 2011-06-08 2012-12-13 Mahle International Gmbh Method for producing a metal hollow valve with improved cooling
CN113523735B (en) * 2021-09-01 2022-07-22 西安远航真空钎焊技术有限公司 Preparation method of injector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029508A (en) * 1978-09-08 1980-03-19 Bendix Corp Fuel injector valve with contoured flow nozzle
GB2029508B (en) * 1978-09-08 1983-03-30 Bendix Corp Injector valve with contoured valve seat and needle valve interface
EP1640098A2 (en) * 2004-07-02 2006-03-29 Siemens Aktiengesellschaft Method for machining the high strenght sealing surfaces of two metallic components
EP1640098A3 (en) * 2004-07-02 2006-08-16 Siemens Aktiengesellschaft Method for machining the high strenght sealing surfaces of two metallic components
EP2672101A1 (en) * 2012-06-05 2013-12-11 Caterpillar Motoren GmbH & Co. KG Injection nozzle
WO2013182272A1 (en) 2012-06-05 2013-12-12 Caterpillar Motoren Gmbh & Co. Kg Injection nozzle

Also Published As

Publication number Publication date
FR2339067B1 (en) 1981-02-13
FR2339067A1 (en) 1977-08-19
JPS5289825A (en) 1977-07-28
DE2701291A1 (en) 1977-07-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee