JPS57183515A - Fuel-injected engine - Google Patents

Fuel-injected engine

Info

Publication number
JPS57183515A
JPS57183515A JP56068750A JP6875081A JPS57183515A JP S57183515 A JPS57183515 A JP S57183515A JP 56068750 A JP56068750 A JP 56068750A JP 6875081 A JP6875081 A JP 6875081A JP S57183515 A JPS57183515 A JP S57183515A
Authority
JP
Japan
Prior art keywords
fuel
intake
heavy
communication hole
load operation
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
JP56068750A
Other languages
Japanese (ja)
Inventor
Hisamoto Aihara
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP56068750A priority Critical patent/JPS57183515A/en
Publication of JPS57183515A publication Critical patent/JPS57183515A/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
    • F02B19/1023—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber pre-combustion chamber and cylinder being fed with fuel-air mixture(s)
    • F02B19/1066—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber pre-combustion chamber and cylinder being fed with fuel-air mixture(s) pre-combustion chamber having an inlet and an outlet port and with two distinct intake conduits or with one intake conduit in which the heavier fuel particles are separated from the main stream, e.g. by gravitational forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE:To attain ignition performance stable in the heavy-load operation of an engine, by controlling the direction of fuel injection depending on the speed of intake flow. CONSTITUTION:A guide passage 14, which is opened toward a spark plug 10, is defined at the tip of a fuel injection valve 9 and provided with a communication hole 13, which functions to conduct negative pressure caused depending on the velocity of flow through an intake port 7, to control the direction of fuel injection depending on the intake flow velocity. In the heavy-load operation of the engine in which the intake quantity is large and the air flow velocity at the intake port 7 is high, intense negative pressure is caused in the communication hole 13 to attract the injected fuel flow in the passage 14, toward the communication hole, so that the streamline of the injected fuel is curved downwards, its main stream goes away from the opening 6A of an auxiliary chamber 6 and most of the fuel is directly injected into a combustion chamber 5. Therefore, even in the heavy-load operation in which the quantity of the injected fuel is large, the fuel flowing into the auxiliary chamber 6 does not become excess, so that stable ignition is maintained.
JP56068750A 1981-05-07 1981-05-07 Fuel-injected engine Pending JPS57183515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56068750A JPS57183515A (en) 1981-05-07 1981-05-07 Fuel-injected engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56068750A JPS57183515A (en) 1981-05-07 1981-05-07 Fuel-injected engine

Publications (1)

Publication Number Publication Date
JPS57183515A true JPS57183515A (en) 1982-11-11

Family

ID=13382749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56068750A Pending JPS57183515A (en) 1981-05-07 1981-05-07 Fuel-injected engine

Country Status (1)

Country Link
JP (1) JPS57183515A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097373U (en) * 1983-12-07 1985-07-03 マツダ株式会社 engine fuel injector
JPH0412167A (en) * 1990-05-01 1992-01-16 Hitachi Ltd Fuel injection device
JP4776779B2 (en) * 1998-09-02 2011-09-21 カイロス・インク Microfabricated members that are connected by torsional flexure and rotate relatively

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097373U (en) * 1983-12-07 1985-07-03 マツダ株式会社 engine fuel injector
JPH0121179Y2 (en) * 1983-12-07 1989-06-23
JPH0412167A (en) * 1990-05-01 1992-01-16 Hitachi Ltd Fuel injection device
JP4776779B2 (en) * 1998-09-02 2011-09-21 カイロス・インク Microfabricated members that are connected by torsional flexure and rotate relatively

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