SU1550196A1 - Compression-ignited ic-engine - Google Patents
Compression-ignited ic-engine Download PDFInfo
- Publication number
- SU1550196A1 SU1550196A1 SU884424685A SU4424685A SU1550196A1 SU 1550196 A1 SU1550196 A1 SU 1550196A1 SU 884424685 A SU884424685 A SU 884424685A SU 4424685 A SU4424685 A SU 4424685A SU 1550196 A1 SU1550196 A1 SU 1550196A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- insert
- combustion chamber
- side wall
- piston
- annular
- Prior art date
Links
Classifications
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- 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
- F02B23/0636—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 having a substantially flat and horizontal bottom
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- 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
- F02B23/0603—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 at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
- F02B2023/0612—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 at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head the material having a high temperature and pressure resistance, e.g. ceramic
-
- 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
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- 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
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- 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
Изобретение позвол ет повысить топливную экономичность двигател с воспламенением от сжати . Двигатель содержит цилиндр 1, головку 3 цилиндра с размещенной в ней форсункой 4 и поршень 2, в днище которого выполнена камера сгорани 5 с размещенной в ней соосно металлокерамической кольцевой вставкой 8. Вставка 8 укреплена в камере сгорани 5 с образованием кольцевой полости 10 и зазора между торцовой поверхностью 12 вставки и днищем 7 камеры сгорани 5 при помощи кронштейнов 16, выполненных в виде наклонных лопаток, размещенных в пазах боковой стенки 11 камеры сгорани 5. На такте сжати часть воздушного зар да, вытесн ема поршнем 2 с периферии надпоршневого пространства, проходит через кольцевую полость 10, закручиваетс лопатками кронштейнов 16 и, втека во внутреннюю полость кольцевой вставки 8, интенсифицирует вращение зар да в ней, что способствует повышению полноты сгорани топлива. 2 з.п. ф-лы, 3 ил.The invention makes it possible to increase the fuel economy of a compression ignition engine. The engine contains cylinder 1, cylinder head 3 with nozzle 4 placed in it and piston 2, in the bottom of which combustion chamber 5 is made with coaxially cermet insert 8 placed in it. Insert 8 is fixed in combustion chamber 5 with formation of annular cavity 10 and clearance between the end surface 12 of the insert and the bottom 7 of the combustion chamber 5 using brackets 16 made in the form of inclined blades placed in the slots of the side wall 11 of the combustion chamber 5. In the compression stroke, part of the air charge displaced by the piston 2 from the periphery and over-piston space, passes through the annular cavity 10, is twisted by the blades of the brackets 16 and, flowing into the internal cavity of the annular insert 8, intensifies the charge rotation in it, which contributes to an increase in the completeness of the combustion of fuel. 2 hp f-ly, 3 ill.
Description
3 13 1
Изобретение относитс к машиностроению , в частности к двигателе- строению.This invention relates to mechanical engineering, in particular, to engine building.
Цель изобретени - повышение топливной экономичности двигател и снижение токсичности отработавших газовThe purpose of the invention is to increase the fuel economy of the engine and reduce the toxicity of exhaust gases.
На фиг. 1 изображен предлагаемый двигатель, разрез по оси цилиндра; на фиг. 2 - камера сгорани , вид сверху; на фиг. 3 кольцева вставка .FIG. 1 shows the proposed engine, a section along the axis of the cylinder; in fig. 2 - top view of the combustion chamber; in fig. 3 ring insert.
Двигатель содержит по меньшей мере один цилиндр 1 с размещенным в не поршнем 2, головку 3 цилиндра с плос ким днищем, расположенную в головке 3 цилиндра 1 топливную форсунку , камеру 5 сгорани , выполненную в днище 6 поршн 2 в виде цилиндрического углублени с днищем 7, и кольцевую вставку 8 с цилиндрической наружной боковой стенкой 9, установленную в камере 5 сгорани соосно с ней с образованием кольцевой полости 10 между боковой стенкой 11 камеры 5 сгора ни и наружной боковой стенкой 9 кольцевой вставки 8 и зазора между торцовой поверхностью 12 кольцевой вставки 8 и днищем 7 камеры 5 сгорани .The engine contains at least one cylinder 1 with a piston 2 placed in a piston 2, a cylinder 3 head with a flat bottom, a fuel injector located in the cylinder 3 of cylinder 1, a combustion chamber 5 in the bottom 6 of the piston 2 in the form of a cylindrical recess with a bottom 7, and an annular insert 8 with a cylindrical outer side wall 9 installed in the combustion chamber 5 coaxially with it to form an annular cavity 10 between the side wall 11 of the combustion chamber 5 and the outer side wall 9 of the annular insert 8 and the gap between the end surface 12 to front insert 8 and bottom 7 of the chamber 5 of the combustion.
Кольцева вставка 8 выполнена с сужением в нижней части 13, а ее внутренн стенка И снабжена выступамиThe ring insert 8 is made with a narrowing in the lower part 13, and its inner wall And is provided with protrusions
15,сопр женными по высоте с нижней суженной частью 13 кольцевой вставки 8. Наружна бокова стенка 9 кольцевой вставки 8 снабжена кронштейнами15, conjugated in height with the lower narrowed part 13 of the annular insert 8. The outer side wall 9 of the annular insert 8 is provided with brackets
16,при помощи которых кольцева вставка 8 закреплена в камере 5 сгорани . Кронштейны 16 выполнены заодн с кольцевой вставкой 8 из металлокерамики в виде наклонных лопаток, размещенных в пазах боковой стенки 11 камеры 5 сгорани и зафиксированных16, by means of which the annular insert 8 is fixed in the combustion chamber 5. The brackets 16 are made zadn with an annular insert 8 made of metal-ceramic in the form of inclined blades placed in the slots of the side wall 11 of the combustion chamber 5 and fixed
00
5 five
00
5five
вращени зар да возрастает не только благодар уменьшению его момента инерции, вызванному сокращением диаметра вихр , но и благодар тому, что часть зар да, вытесн ема поршнем 2 с периферии надпоршневого пространства , направл етс в кольцевую полость 10, где она закручиваетс лопатками кронштейнов 16 и через зазор между днищем 7 камеры 5 сгорани и торцовой поверхностью 12 кольцевой вставки 8 втекает во внутреннюю полость кольцевой вставки 8, дополнительно интенсифициру вращение вихр , причем при обтекании выступов 15 на внутренней стенке 14 кольцевой вставки 8 поток формирует в районе выступов 15 местную мелкомасштабную турбулентность воздушного зар да. При подходе поршн 2 к верхней мертвой точке при помощи форсунки 4 на поверхность выступов 15 раскаленной метал- локерамической кольцевой вставки 8 впрыскиваетс топливо.the rotation of the charge increases not only due to a decrease in its moment of inertia, caused by a reduction in the diameter of the vortex, but also due to the fact that part of the charge displaced by the piston 2 from the periphery of the piston space is directed into the annular cavity 10, where it is twisted by the blades of the brackets 16 and through the gap between the bottom 7 of the chamber 5 of the combustion and the end surface 12 of the annular insert 8 flows into the internal cavity of the annular insert 8, additionally intensifies the rotation of the vortex, and when flowing protrusions 15 on the inner walls Ke 14 of the annular insert 8, the flow forms local small-scale turbulence of the air charge in the area of the projections 15. When the piston 2 approaches the top dead center by means of a nozzle 4, fuel is injected onto the surface of the projections 15 of the hot metal-ceramic ring insert 8.
Местна мелкомасштабна турбулентность способствует сокращению периода задержки воспламенени , а процесс испарени топлива с пористой поверхности выступов 15 кольцевой вставки 8 снижает скорость нарастани давлени в цилиндре 1. Благодар подпитке вихр со стороны днища 7 камеры 5 сгорани достигаетс высока полнота сгорани топлива.Local small-scale turbulence reduces the ignition delay period, and the process of fuel evaporation from the porous surface of the protrusions 15 of the ring insert 8 reduces the rate of pressure buildup in cylinder 1. Due to the feeding of the vortex from the bottom 7 of the combustion chamber 5, a high degree of combustion is achieved.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884424685A SU1550196A1 (en) | 1988-05-16 | 1988-05-16 | Compression-ignited ic-engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884424685A SU1550196A1 (en) | 1988-05-16 | 1988-05-16 | Compression-ignited ic-engine |
Publications (1)
Publication Number | Publication Date |
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SU1550196A1 true SU1550196A1 (en) | 1990-03-15 |
Family
ID=21374689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884424685A SU1550196A1 (en) | 1988-05-16 | 1988-05-16 | Compression-ignited ic-engine |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1550196A1 (en) |
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1988
- 1988-05-16 SU SU884424685A patent/SU1550196A1/en active
Non-Patent Citations (1)
Title |
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За вка FR 1303297, кл. F 02 В, опублик. 1962. ( ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ С ВОСПЛАМЕНЕНИЕМ ОТ СЖАТИЯ * |
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