SU1657689A1 - Diesel engine - Google Patents
Diesel engine Download PDFInfo
- Publication number
- SU1657689A1 SU1657689A1 SU894667595A SU4667595A SU1657689A1 SU 1657689 A1 SU1657689 A1 SU 1657689A1 SU 894667595 A SU894667595 A SU 894667595A SU 4667595 A SU4667595 A SU 4667595A SU 1657689 A1 SU1657689 A1 SU 1657689A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- axis
- recess
- cylinder
- hole
- nozzle
- 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
- F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
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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
- F02B23/0645—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
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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
- 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
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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)
- Dispersion Chemistry (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Изобретение позвол ет повысить экономичность двигател внутреннего сгорани с воспламенением от сжати . В головке 3 цилиндра 1 двигател центрально установлена форсунка 4 с по меньшей мере одним распылительным отверстием 5. Камера сгорани двигател ограничена стенкой цилиндра 1, его головкой 3 и периферийной выемкой 6 в днище 7 поршн 2 в форме тела вращени , плавно сопр женной с централь ным коническим выступом 8 и имеющей боковую стенку, на которую ориентирована ось отверсти 5 форсунки 4 при положении поршн 2 в верхней мертвой точке Профиль боковой стенки выемки 6 образован центральным выпуклым элементом 9 и сопр женными с ним боковыми вогнутыми элементами 10 образующими кольцевые полости 11 Отношение длины хорды, образованной точками a, b сопр жени элемента 9 с элементами 10, к рассто нию I по оси отверсти 5 от последнего до середины хор ды (точка с) составл ет 0,08-0,2 При впры- скивании топлива через отверстие 5 форсунки 4 в выемке 6 образуетс дро факела в форме конуса. Вершина конуса с углом ш 5-12° находитс на выходе отверсти 5, а ось конуса совпадает с осью отверThe invention improves the efficiency of a compression ignition internal combustion engine. The nozzle 4 is centrally mounted in the head 3 of the cylinder 1 of the engine with at least one spray hole 5. The engine combustion chamber is bounded by the wall of the cylinder 1, its head 3 and the peripheral recess 6 in the bottom 7 of the piston 2 in the form of a rotating body, smoothly mated with the central a conical protrusion 8 and having a side wall on which the axis of the orifice 5 of the nozzle 4 is oriented at the position of the piston 2 at the top dead center. The profile of the side wall of the recess 6 is formed by a central convex element 9 and its lateral sides concave elements 10 forming annular cavities 11 The ratio of the chord length formed by the points a, b of the interface of element 9 with elements 10 to the distance I along the axis of the hole 5 from the last to the middle of the chord (point c) is 0.08-0, 2 When fuel is injected through the opening 5 of the nozzle 4 in the recess 6, a cone-shaped torch core is formed. The top of the cone with an angle of w 5-12 °. is at the exit of the hole 5, and the axis of the cone coincides with the axis of the hole
Description
Изобретение относитс к области машиностроени , в частности к двигателест- роению, а именно к двигател м внутреннего сгорани с воспламенением от сжати .The invention relates to the field of engineering, in particular to engine building, namely to compression-ignition internal combustion engines.
Цель изобретени - повышение эконо- мичности.The purpose of the invention is to increase economic efficiency.
На чертеже представлен предлагаемый двигатель,The drawing shows the proposed engine
Двигатель содержит цилиндр 1 с размещенным в нем поршнем 2, головку 3 цилин- дра 1 с центрально установленной в ней форсункой 4, имеющей по меньшей мере одно распылительное отверстие 5, и камеру сгорани , ограниченную стенкой цилиндра 1, его головкой 3 и периферийной выемкой 6 в днище 7 поршн 2 в форме тела вращени , плавно сопр женной с центральным коническим выступом 8 и имеющей боковую стенку, на которую ориентирована ось распылительного отверсти 5 форсунки 4 при положении поршн 2 в верхней мертвой точке. Профиль боковой стенки выемки 6 образован центральным выпуклым элементом 9 и сопр женными с ним боковыми вогнутыми элементами 10, образующими кольцевые полости 11. Отношение длины хорды, образованной точками a, b сопр жени элемента 9 с элементами 10, к рассто нию I по оси распылительного отверсти 5 от последнего до середины хорды (точка с) составл ет 0,08-0,2.The engine contains a cylinder 1 with a piston 2 placed in it, a cylinder 3 of a cylinder 1 with a nozzle 4 centrally mounted in it, having at least one spray hole 5, and a combustion chamber bounded by the wall of cylinder 1, its head 3 and a peripheral recess 6 in the bottom 7 of the piston 2 in the form of a body of rotation, smoothly mating with the central conical protrusion 8 and having a side wall on which the axis of the spray hole 5 of the nozzle 4 is oriented when the piston 2 is in the top dead center. The profile of the side wall of the recess 6 is formed by the central convex element 9 and the side concave elements 10 adjoining it, forming annular cavities 11. The ratio of the chord length formed by the points a, b of the interface of element 9 with elements 10 to the distance I along the axis of the spray hole 5 from the last to the middle of the chord (point c) is 0.08-0.2.
Элементы 9 и 10 могут быть образованы лини ми второго пор дка.Elements 9 and 10 may be formed by second order lines.
В варианте профиль элемента 9 может быть выполнен в виде пр мой, совпадаю- щей с хордой ab.In a variant, the profile of element 9 can be made in the form of a straight line coinciding with the chord ab.
Двигатель работает следующим образом .The engine works as follows.
При впрыскивании топлива через распылительное отверстие 5 форсунки в выем- ке 6 образуетс дро факела в форме конуса. Вершина конуса с углом ... 12° находитс на выходе распылительного отверсти 5 а ось конуса совпадает с осью отверсти 5. Ядро факела представл ет плотную зону пе- реобогащенной топливовоздушной смеси.When fuel is injected through the nozzle orifice 5 in the recess 6, a cone-shaped torch core is formed. The top of the cone with an angle of ... 12 ° is at the outlet of the spray hole 5 and the axis of the cone coincides with the axis of the hole 5. The torch core represents a dense zone of the re-enriched fuel-air mixture.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894667595A SU1657689A1 (en) | 1989-01-06 | 1989-01-06 | Diesel engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894667595A SU1657689A1 (en) | 1989-01-06 | 1989-01-06 | Diesel engine |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1657689A1 true SU1657689A1 (en) | 1991-06-23 |
Family
ID=21436584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU894667595A SU1657689A1 (en) | 1989-01-06 | 1989-01-06 | Diesel engine |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1657689A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2777172C2 (en) * | 2017-11-20 | 2022-08-01 | Ман Трак Энд Бас Аг | Piston, internal combustion engine, and vehicle using them |
-
1989
- 1989-01-06 SU SU894667595A patent/SU1657689A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР . Ns 985357. кл. F 02 В 23/06, 1981. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2777172C2 (en) * | 2017-11-20 | 2022-08-01 | Ман Трак Энд Бас Аг | Piston, internal combustion engine, and vehicle using them |
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