SU1657689A1 - Diesel engine - Google Patents

Diesel engine Download PDF

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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
Application number
SU894667595A
Other languages
Russian (ru)
Inventor
Николай Олегович Сухарев
Николай Дмитриевич Шангичев
Адольф Васильевич Касьянов
Мирон Яковлевич Завлин
Владимир Дмитриевич Новоселов
Александр Георгеевич Прохоров
Анатолий Николаевич Финогенов
Original Assignee
Центральный научно-исследовательский дизельный институт
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 Центральный научно-исследовательский дизельный институт filed Critical Центральный научно-исследовательский дизельный институт
Priority to SU894667595A priority Critical patent/SU1657689A1/en
Application granted granted Critical
Publication of SU1657689A1 publication Critical patent/SU1657689A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0696W-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645Details related to the fuel injector or the fuel spray
    • F02B23/0648Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651Means 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14Direct injection into combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618Other 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
    • F02B23/0621Squish flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving 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)

1.Двигатель внутреннего сгорани  с воспламенением от сжати , содержащий по меньшей мере один цилиндр с размещенным в нем поршнем,головку цилиндра с центрально установленной в ней форсункой , имеющей по меньшей мере одно распылительное отверстие, и камеру сгорани , ограниченную стенкой цилиндра, его головкой и периферийной выемкой в днище поршн  в форме тела вращени , плавно сопр женной с центральным коническим выступом и имеющей рельефную боковую стенку, на которую ориентирована ось распылительного отверсти  форсунки при положении поршн  в верхней мертвой точке, отличающийс  тем, что, с целью повышени  экономичности, профиль боковой стенки выемки образован цилиндрическим выпуклым элементом и сопр женными с ним боковыми вогнутыми элементами, образующими кольцевые полости, причем отношение длины хорды, образованной точками сопр жени  выпуклого элемента с вогнутыми, к рассто нию по оси распылительного отверсти  от последнего до середины хорды составл ет 0,08-0,2.1. A compression ignition internal combustion engine, comprising at least one cylinder with a piston disposed therein, a cylinder head with a centrally mounted nozzle having at least one spray hole, and a combustion chamber defined by the cylinder wall, its head and a peripheral recess in the bottom of the piston in the form of a body of rotation, smoothly mated with a central conical protrusion and having a relief side wall on which the axis of the spray nozzle aperture is oriented at the position The top dead center is characterized by the fact that, in order to increase efficiency, the profile of the recess is formed by a cylindrical convex element and side concave elements adjoining it, forming annular cavities, the ratio of the length of the chord formed by the points of conjugation of the convex element with concave , to the distance along the axis of the spray hole from the last to the middle of the chord is 0.08-0.2. 2.Двигатель по п.1, о т л и ч а ю щ и и - с   тем, что элементы боковой стенки выемки образованы лини ми второго пор дка.2. The motor of claim 1, wherein the lateral wall elements of the recess are formed by second-order lines.
SU894667595A 1989-01-06 1989-01-06 Diesel engine SU1657689A1 (en)

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

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Application Number Title Priority Date Filing Date
SU894667595A SU1657689A1 (en) 1989-01-06 1989-01-06 Diesel engine

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SU (1) SU1657689A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР . Ns 985357. кл. F 02 В 23/06, 1981. *

Cited By (1)

* Cited by examiner, † Cited by third party
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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