SE7905364L - DIESEL ENGINE WITH DIRECT INJECTION - Google Patents

DIESEL ENGINE WITH DIRECT INJECTION

Info

Publication number
SE7905364L
SE7905364L SE7905364A SE7905364A SE7905364L SE 7905364 L SE7905364 L SE 7905364L SE 7905364 A SE7905364 A SE 7905364A SE 7905364 A SE7905364 A SE 7905364A SE 7905364 L SE7905364 L SE 7905364L
Authority
SE
Sweden
Prior art keywords
combustion chamber
diameter
air
loads
holes
Prior art date
Application number
SE7905364A
Other languages
Swedish (sv)
Inventor
J Lohr
F Bauer
K Wiebicke
Original Assignee
Maschf 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 Maschf Augsburg Nuernberg Ag filed Critical Maschf Augsburg Nuernberg Ag
Publication of SE7905364L publication Critical patent/SE7905364L/en

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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0675—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/066—Details related to the fuel injector or the fuel spray the injector being located substantially off-set from the cylinder centre axis
    • 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
    • F02M45/083—Having two or more closing springs acting on injection-valve
    • 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
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0621—Squish flow
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0624—Swirl flow
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0663—Details related to the fuel injector or the fuel spray having multiple injectors per combustion chamber
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/44—Valves, e.g. injectors, with valve bodies arranged side-by-side
    • 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)
  • Fuel-Injection Apparatus (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

An air-compression, direct- injection internal combustion engine comprises a radially-symmetrical air swirl combustion chamber (3) arranged in a piston (1) or cylinder head (8), and a multi-hole fuel injector (7) for injecting liquid fuel into the combustion chamber (3) in the direction of the air swirl and being offset with respect to the longitudinal axis of the combustion chamber, the fuel injector (7) having a needle valve 18 which uncovers a first nozzle hole or holes (21) at low engine speeds and/or loads and a second nozzle hole or holes (24) at higher engine speeds and/or loads the ratio (???) of the maximum combustion chamber diameter (D) to the diameter (d) of the said throad (4) being between 1.05 and 1.25, and the rotary frequency (fl) of the rotating air (16) - referred to the measuring diameter (0.7 times cylinder diameter) and at maximum valve lift as well as 10 m/sec mean piston speed - being between 135 and 185 Hz, and the injection cycle - referred to full load at the smoke limit - at a mean piston velocity (cm) of 10 m/sec extending over more than or at least 20 DEG crank angle. A double needle injector may be used. <IMAGE>
SE7905364A 1978-06-19 1979-06-18 DIESEL ENGINE WITH DIRECT INJECTION SE7905364L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2826602A DE2826602C2 (en) 1978-06-19 1978-06-19 Air-compressing, direct-injection internal combustion engine

Publications (1)

Publication Number Publication Date
SE7905364L true SE7905364L (en) 1979-12-20

Family

ID=6042028

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7905364A SE7905364L (en) 1978-06-19 1979-06-18 DIESEL ENGINE WITH DIRECT INJECTION

Country Status (10)

Country Link
JP (1) JPS555495A (en)
DD (1) DD144433A1 (en)
DE (1) DE2826602C2 (en)
FR (1) FR2432095A1 (en)
GB (1) GB2024936B (en)
HU (1) HU182899B (en)
IN (1) IN152143B (en)
IT (1) IT1121441B (en)
RO (1) RO77469A (en)
SE (1) SE7905364L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2711390A1 (en) * 1977-03-16 1978-09-21 Bosch Gmbh Robert FUEL INJECTOR
DE3151293A1 (en) * 1981-12-24 1983-07-07 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION SYSTEM FOR DIRECT FUEL INJECTION IN COMBUSTION ENGINES
JPS59108819A (en) * 1982-12-13 1984-06-23 Toyota Central Res & Dev Lab Inc Fuel injection type internal-combustion engine
FR2571135B1 (en) * 1984-10-02 1987-02-06 Moet & Chandon METHOD AND APPARATUS FOR TRANSFERRING AND / OR DOSING OF FRAGILE PARTICLES, AT A HIGH THROUGHPUT, WITH A VIEW TO, FOR EXAMPLE, INSERTION IN A CONTAINER
US4709672A (en) * 1985-05-21 1987-12-01 Isuzu Motors Limited Combustion chamber for an internal-combustion engine
JPS6238828A (en) * 1985-08-13 1987-02-19 Isuzu Motors Ltd Direct injection type diesel engine
JPS62121827A (en) * 1985-11-21 1987-06-03 Isuzu Motors Ltd Spark assist diesel engine
EP0345348A4 (en) * 1987-10-30 1992-01-08 Nauchno-Proizvodstvennoe Obiedinenie Po Toplivnoi Apparature Dvigatelei Pulverizer of diesel nozzle
FR3071880B1 (en) * 2017-09-29 2019-09-27 IFP Energies Nouvelles INTERNAL COMBUSTION ENGINE WITH DIRECT FUEL INJECTION WITHIN THE DIRECTION OF ADMISSION GAS MOVEMENT
FR3071878B1 (en) * 2017-09-29 2019-09-27 IFP Energies Nouvelles ELLIPTICAL COMBUSTION CHAMBER

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL70310C (en) * 1946-08-28
FR994588A (en) * 1949-09-01 1951-11-19 Aviat Et Materiel Moderne Soc Two or more jet injector
DE865683C (en) * 1951-12-18 1953-02-05 Hans Krug Injection process for a high-speed diesel engine with a combustion chamber of rotation in the piston
DE1026572B (en) * 1956-11-16 1958-03-20 Friedmann & Maier Ag Injection nozzle for internal combustion engines
US3442451A (en) * 1967-06-14 1969-05-06 Gen Motors Corp Dual stage accumulator type fuel injector
US3559892A (en) * 1968-06-18 1971-02-02 Ambac Ind Fuel injection nozzle with auxiliary spray orifice
DE1914742A1 (en) * 1969-03-22 1970-10-01 Maschf Augsburg Nuernberg Ag Fuel injector for internal combustion engines
DE2525770A1 (en) * 1975-06-10 1976-12-23 Maschf Augsburg Nuernberg Ag AIR COMPRESSING, DIRECT INJECTING COMBUSTION ENGINE

Also Published As

Publication number Publication date
DD144433A1 (en) 1980-10-15
GB2024936A (en) 1980-01-16
GB2024936B (en) 1982-10-27
IT7923659A0 (en) 1979-06-18
DE2826602A1 (en) 1979-12-20
RO77469A (en) 1981-11-04
DE2826602C2 (en) 1982-07-15
FR2432095A1 (en) 1980-02-22
HU182899B (en) 1984-03-28
IN152143B (en) 1983-10-29
JPS555495A (en) 1980-01-16
IT1121441B (en) 1986-04-02

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