JPS5768554A - Fuel injection valve for diesel engine - Google Patents

Fuel injection valve for diesel engine

Info

Publication number
JPS5768554A
JPS5768554A JP14329780A JP14329780A JPS5768554A JP S5768554 A JPS5768554 A JP S5768554A JP 14329780 A JP14329780 A JP 14329780A JP 14329780 A JP14329780 A JP 14329780A JP S5768554 A JPS5768554 A JP S5768554A
Authority
JP
Japan
Prior art keywords
fuel
main
injection
auxiliary
chamber
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
JP14329780A
Other languages
Japanese (ja)
Inventor
Shinichi Goto
Kazuo Konya
Noboru Miyamoto
Tadashi Murayama
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP14329780A priority Critical patent/JPS5768554A/en
Publication of JPS5768554A publication Critical patent/JPS5768554A/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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F02M45/086—Having more than one injection-valve controlling discharge orifices

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

PURPOSE: To achieve simple and reliable control of double injection of fuel by a fuel injection valve for a diesel engine which causes double injection during one cycle of the engine, by employing such an arrangement that auxiliary injection fuel and main injection fuel are pressurized separately and ejected from respective orifices.
CONSTITUTION: In a nozzle body 1 attached in a combustion chamber 2, the top of a second fuel passage 4 for feeding main injection fuel under pressure is communicated to a second pressure chamber 5 which is opened in the combustion chamber 2 via a main office 6. Here, the main orifice 6 is opened and closed by a main valve body 7 fitted in a slide hole 8 of the nozzle body 1 and having a top serving as a pressure receiving surface 7a in the pressure chambers. On the other hand, a first fuel passage 3 for feeding auxiliary injection fuel under pressure is communicated to a first pressure chamber 11 via a fuel sump 9 and a connecting passage 10. The chamber 11 is opened at the central part of the main orifice 6 via an auxiliary orifice 12. Here, the auxiliary orifice 12 is opened and closed by an auxiliary valve body 14 fitted in a slide hole 13 of the main valve body 7 and having a top serving as a pressure receiving surface 14a in the chamber 11.
COPYRIGHT: (C)1982,JPO&Japio
JP14329780A 1980-10-14 1980-10-14 Fuel injection valve for diesel engine Pending JPS5768554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14329780A JPS5768554A (en) 1980-10-14 1980-10-14 Fuel injection valve for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14329780A JPS5768554A (en) 1980-10-14 1980-10-14 Fuel injection valve for diesel engine

Publications (1)

Publication Number Publication Date
JPS5768554A true JPS5768554A (en) 1982-04-26

Family

ID=15335460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14329780A Pending JPS5768554A (en) 1980-10-14 1980-10-14 Fuel injection valve for diesel engine

Country Status (1)

Country Link
JP (1) JPS5768554A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705120A (en) * 2012-06-19 2012-10-03 哈尔滨工程大学 Dual-fuel electric control monomer ejector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372924A (en) * 1976-12-11 1978-06-28 Orange Kg Injection system for autooignition type internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372924A (en) * 1976-12-11 1978-06-28 Orange Kg Injection system for autooignition type internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705120A (en) * 2012-06-19 2012-10-03 哈尔滨工程大学 Dual-fuel electric control monomer ejector

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