SU886758A3 - Internal combustion engine - Google Patents

Internal combustion engine Download PDF

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Publication number
SU886758A3
SU886758A3 SU772522850A SU2522850A SU886758A3 SU 886758 A3 SU886758 A3 SU 886758A3 SU 772522850 A SU772522850 A SU 772522850A SU 2522850 A SU2522850 A SU 2522850A SU 886758 A3 SU886758 A3 SU 886758A3
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SU
USSR - Soviet Union
Prior art keywords
chamber
center
fuel
prechamber
axis
Prior art date
Application number
SU772522850A
Other languages
French (fr)
Russian (ru)
Inventor
Ломбарди Клаудио
Ариетти Джулио
Original Assignee
Фиат Сочиета Пер Ациони (Фирма)
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Publication of SU886758A3 publication Critical patent/SU886758A3/en

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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
    • F02B19/12—Engines characterised by precombustion chambers with positive ignition
    • 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
    • F02B19/1004—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder details of combustion chamber, e.g. mounting arrangements
    • F02B19/1014—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder details of combustion chamber, e.g. mounting arrangements design parameters, e.g. volume, torch passage cross sectional area, length, orientation, or the like
    • 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
    • F02B19/108—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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

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  • 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)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

<P>Un moteur à quatre temps avec ségrégation de charge présente une chambre distincte de précombustion 3 dans laquelle le mélange carburant-air injecté est allumé, le cylindre associé présentant une seconde chambre 4 de combustion forma dans la tête du piston, chambre dans laquelle une autre combustion s'effectue avec un mélange pauvre par rapport à celui qui a brûlé dans la chambre de précom ustion, le volume de la seconde chambre de combustion étant 10-40 % du volume total dans lequel s'effectue la combustion.</P><P> A four-stroke engine with charge segregation has a separate precombustion chamber 3 in which the injected fuel-air mixture is ignited, the associated cylinder having a second combustion chamber 4 formed in the piston head, chamber in which another combustion is carried out with a lean mixture compared to that which has burned in the precompression chamber, the volume of the second combustion chamber being 10-40% of the total volume in which the combustion takes place. </ P>

Description

(5) ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ(5) INTERNAL COMBUSTION ENGINE

1one

Изобретение относитс  к машиностроению , а именно двигателестроению, и в частности к выполнению двигателей внутреннего сгорани  с принудительным зажиганием, снабженным форкамерами. 5The invention relates to mechanical engineering, namely engine building, and in particular to the implementation of internal combustion engines with positive ignition, equipped with pre-chambers. five

Известны двигатели внутреннего сгорани , содержащие, по меньшей мере, одну основную камеру сгорани , ограниченную поверхност ми цилиндра, его головки и днищем поршн jи сообщенную ю с ней каналом сферическую предкамеру, размещенную вне цилиндра и снабженную устройством дл  инжектировани  топлива , выполненным с распыливающими отверсти ми . Ось устройства дл  инжек- jg тировани  направлена к центру предкамеры .Internal combustion engines are known that contain at least one main combustion chamber bounded by cylinder surfaces, its head and piston bottom j, and a spherical prechamber connected to it by a channel located outside the cylinder and provided with a device for injecting fuel made with spray openings . The axis of the injection device is directed toward the center of the prechamber.

Камера сгорани  снабжена устройством дл  зажигани , размещенным в центре предкамеры, причем объем ос- 20 новной камеры сгорани  составл ет от общего объема предкамеры и камеры сгорани  1.The combustion chamber is equipped with an ignition device located in the center of the prechamber, with the volume of the main combustion chamber comprising the total volume of the prechamber and the combustion chamber 1.

Неоптимальное размещение в камере сгорани  инжекторного устройства и jeNon-optimal placement in the combustion chamber of the injection device and je

устройства дл  зажигани  снижают полноту сгорани  топлива.ignition devices reduce fuel combustion.

Цель изобретени  - повышение удельной мощности дви гател  путем улучшени  полноты сгорани .The purpose of the invention is to increase the engine power density by improving the completeness of combustion.

Дл  достижени  поставленной цели угол распыла струи инжекторного устройства , направленного к центру предкамеры , составл ет 80 , а устройство дл  зажигани  выполнено в виде одноэлектродной свечи, ось которой наклонена под углом 2-10° к оси, проход щей через центр предкамеры и параллельной общей 0си цилиндров;To achieve this goal, the spray angle of the jet of the injection device directed toward the center of the prechamber is 80, and the ignition device is designed as a single electrode candle, the axis of which is inclined at an angle of 2-10 ° to the axis passing through the center of the prechamber and parallel to the common 0c cylinders;

На чертеже изображен двигатель внутреннего сгорани , поперечный разрез.The drawing shows the internal combustion engine, a transverse section.

Claims (1)

Двигатель внутреннего сгорани  содержит основную камеру 1 сгорани , ограниченную поверхност ми цилиндра 2, его головки 3 и днищем k поршн  5, и Предкамеру 6, сообщенную с основной камерой 1 каналом 7. Предкамера 6 размещена вне цилиндра 2 и снабжена устройством 8 дл  инжектировани  топлива и устройством 9 зажигани  с распыливающими отверсти ми (не показаны} Ось 10 устройства 8 дл  инжектировани  направлена к центру предкамеры 6, Устройство дл  зажигани  9, размещённое в центре предкамеры 6, выполнено В виде электродного стержн  11 и одноэлёктродной свечи, ось которой 12 наклонена под углом 2-10° к оси 13, проход щей через центр предкамеры и параллельной оси 14 цилиндра 2, Двигатель работает следующим образом . При движении поршн  5 вниз от верх ней мертвой точки к нижней воздух засасываетс  через впускной канал и. размещенный в канале впускной клапан в цилиндр 2, в основную камеру сгорани  1 и предкамеру 6. Топливо впрыскиваетс  из распыл ющих отверстий устройства 8 дл  инжектировани  топлива на центральный стер , жень устройства 9 дл  зажигани , раз/«щенное в предкамере 6. Угол рарпыла струи составл ет 80°. При движении поршн  5 вверх в поло жение верхней мертвой точки 10-70 воздуха, наход щегос  в цилиндре 2, сжимаетс  и вытесн етс  в предкамеру 6 через канал 7 расположенный по .касательной к предкамере 6, дл  создани  завихренного потока, способствующего мгновенному распылению впрыснуто го топлива, примем при таком распыливании топлива в центре предкамеры соз даетс  обогащенна  топливом зона. Во врем  циклов сгорани  и расширени  часть топливной смеси сгорает,, остальное несгоревшее топливо, обогащенное окисью углерода и углеводородами , поступает через канал 7 в нижележащую основную камеру сгорани  1, размещенную в днище k поршн  5« При этом воздух, наход щийс  в объемах канала 7 и основной камеры, ег рани  1, способствует полному сгоранию топливной смеси. В результате оптимизации места размещени  устройства дл  инжектировани  топлива и применени  определенного yi- ла распыливани  топливной струи, ориентированной на свечу зажигани , достигаетс  увеличение мощности двига-тел  путем увеличени  полноты сгорани  топлива. Формула изобретени  Двигатель внутреннего сгорани , содержащий , по крайней мере, одну основную камеру сгорани , ограниченную поверхност ми цилиндра, его головки и днищем поршн , и сообщенную с ней каналом сферическую предкамеру, размещенную вне цилиндра и снабженную устройством дл  инжектировани  топлива , выполненным с распыливающими отверсти ми, ось которого направлена к центру предкамеры, и устройством дл  зажигани , размещенным в центре предкамеры, причем объем основной камеры сгорани  составл ет от общего объема предкамеры и камеры сгорани , отли чающийс  тем, что, с целью повышени  удельной мощности двигател  путем улучшени  полноты сгорани , угол распыла струи инжекторного устройства, направленного к центру предкамеры, составл ет 80°, а устройство дл  зажигани  выполнзно в виде одноэлектродной свечи, ось которой наклонена под углом 2-10, к оси, проход щей через центр предкамеры и параллельной общей оси цилиндров . Источники информации, прин тые во внимание при экспертизе 1. Патент Японии № 49-41522, кл. F 02 В Т9/12, опублик. 1974.The internal combustion engine contains the main combustion chamber 1 bounded by the surfaces of cylinder 2, its head 3 and the bottom k of the piston 5, and Pre-chamber 6 communicated with the main chamber 1 by channel 7. The pre-chamber 6 is placed outside the cylinder 2 and is equipped with a device 8 for injecting fuel and an ignition device 9 with spraying orifices (not shown} The axis 10 of the injection device 8 is directed toward the center of the pre-chamber 6, The ignition device 9 located in the center of the pre-chamber 6 is made as an electrode rod 11 and single electrode candles, the axis of which 12 is inclined at an angle of 2-10 ° to the axis 13 passing through the center of the prechamber and parallel to the axis 14 of cylinder 2, the engine operates as follows. When the piston 5 moves down from the top dead center to the bottom, air is sucked through the inlet duct and an inlet valve placed in the duct into cylinder 2, into main combustion chamber 1 and prechamber 6. Fuel is injected from the spray openings of fuel injection device 8 into the central ster, ignition device 9, once / twice in the prechamber 6. The angle of the stream is 80 °. When the piston 5 moves up to the top dead center point 10-70 of air in cylinder 2, it is compressed and forced into the pre-chamber 6 through channel 7 located along the pre-chamber 6, to create a vortex flow contributing to the instantaneous injection of injected air. fuel, we will take in this atomization of fuel in the center of the antechamber a fuel rich zone is created. During the combustion and expansion cycles, part of the fuel mixture burns, the remaining unburned fuel, enriched with carbon monoxide and hydrocarbons, flows through channel 7 into the underlying main combustion chamber 1 located in the bottom of the piston 5 "In this case, the air in channel 7 and the main chamber, er rani 1, contributes to the complete combustion of the fuel mixture. As a result of optimizing the location of the fuel injection device and applying a certain spark jet fueling yi, an increase in engine power is achieved by increasing the combustion efficiency. Claims of the Invention An internal combustion engine comprising at least one main combustion chamber bounded by cylinder surfaces, its head and piston bottom, and a spherical pre-chamber communicated with it by a channel located outside the cylinder and equipped with a fuel injection device configured with spray openings the axis of which is directed to the center of the prechamber and the ignition device located in the center of the prechamber, the volume of the main combustion chamber being from the total volume of the prechamber and to measures of combustion, in order to increase the specific power of the engine by improving the completeness of combustion, the spray angle of the jet of the injection device directed to the center of the precamera is 80 °, and the device for ignition is made as a single-electrode candle, the axis of which is inclined angle 2-10, to the axis passing through the center of the prechamber and parallel to the common axis of the cylinders. Sources of information taken into account in the examination 1. Japan patent No. 49-41522, cl. F 02 T9 / 12, published 1974.
SU772522850A 1976-09-22 1977-09-20 Internal combustion engine SU886758A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69274/76A IT1078645B (en) 1976-09-22 1976-09-22 IMPROVEMENT OF THE COMBUSTION CHAMBER, ESPECIALLY FOR STRATIFIED LOAD ENGINES

Publications (1)

Publication Number Publication Date
SU886758A3 true SU886758A3 (en) 1981-11-30

Family

ID=11311727

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772522850A SU886758A3 (en) 1976-09-22 1977-09-20 Internal combustion engine

Country Status (6)

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JP (1) JPS5340109A (en)
DE (1) DE2742500A1 (en)
FR (1) FR2365696A1 (en)
GB (1) GB1582047A (en)
IT (1) IT1078645B (en)
SU (1) SU886758A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123482B (en) * 1982-05-21 1985-06-26 Dr Andrew Martin Storrar I c engine combustion chambers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2312201A1 (en) * 1973-03-12 1974-09-19 Volkswagenwerk Ag COMBUSTION ENGINE OPERATED WITH CHARGE STRATIFICATION
US3921605A (en) * 1974-02-04 1975-11-25 Gen Motors Corp Plasma jet ignition engine and method

Also Published As

Publication number Publication date
JPS5340109A (en) 1978-04-12
DE2742500A1 (en) 1978-03-30
GB1582047A (en) 1980-12-31
FR2365696B1 (en) 1979-03-02
IT1078645B (en) 1985-05-08
FR2365696A1 (en) 1978-04-21

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