KR20020081625A - Compression ignition of homogenous charge combustion - Google Patents

Compression ignition of homogenous charge combustion Download PDF

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Publication number
KR20020081625A
KR20020081625A KR1020010021034A KR20010021034A KR20020081625A KR 20020081625 A KR20020081625 A KR 20020081625A KR 1020010021034 A KR1020010021034 A KR 1020010021034A KR 20010021034 A KR20010021034 A KR 20010021034A KR 20020081625 A KR20020081625 A KR 20020081625A
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South Korea
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combustion chamber
combustion
piston
main
chamber
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KR1020010021034A
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Korean (ko)
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김장헌
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현대자동차주식회사
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Priority to KR1020010021034A priority Critical patent/KR20020081625A/en
Publication of KR20020081625A publication Critical patent/KR20020081625A/en

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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
    • 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

Abstract

PURPOSE: A combustion chamber of a diesel engine for pre-mixture combustion is provided to prevent the increase of the combustion temperature in the rich area of the air fuel ratio in the diffusion combustion so as to restrict the generation of NOx. CONSTITUTION: In a combustion chamber, a concave part(23) is formed at a bottom of a cylinder head(20) and a convex part(41) at the upper part of a piston(40). When the piston is in a compression stroke, the concave and the convex parts are connected together so that the combustion chamber is divided into a main combustion chamber(31) and an auxiliary combustion chamber(32). When the piston is going up to the top dead center, combustion occurs in the main combustion chamber. When the piston is going down so that the main combustion chamber is communicated with the auxiliary combustion chamber, the combustion gas in the main combustion chamber is transmitted to the auxiliary combustion chamber so that self-ignition occurs in the whole combustion chamber.

Description

예혼합연소를 위한 디젤엔진의 연소실{Compression ignition of homogenous charge combustion}Compression ignition of homogenous charge combustion

본 발명은 예혼합연소를 위한 디젤엔진의 연소실에 관한 것으로, 보다 상세하게는 연료와 공기를 미리 혼합시킨 후 연소를 수행하므로서 확산연소에서 나타나는 공연비의 RICH영역에서의 연소온도 상승을 방지하여 연소최고온도를 낮춤으로서 녹스 생성을 억제하고, 연소기간을 단축시켜 배출가스의 발생을 저감하는 예혼합연소를 위한 디젤엔진의 연소실에 관한 것이다.The present invention relates to a combustion chamber of a diesel engine for premixed combustion. More specifically, the combustion is performed after mixing fuel and air in advance, thereby preventing the increase of the combustion temperature in the RICH region of the air-fuel ratio appearing in diffusion combustion. The present invention relates to a combustion chamber of a diesel engine for premixed combustion that suppresses the generation of nox by reducing the temperature, shortens the combustion period, and reduces the generation of exhaust gas.

일반적으로 가솔린엔진은 공기와 연료를 연소개시 전에 균일하게 혼합시켜두고 그 혼합기를 점화플러그로 점화시켜 연소시키는 것이 원칙이며, 디젤엔진은 공기만을 흡입 고압축비로 압축하여 여기에 연료를 고압으로 분사시킴으로서 자기착화 연소에 도달하도록 하는 것이 원칙이다.In general, gasoline engines should mix air and fuel uniformly before commencement of combustion, and ignite the mixture by ignition plugs to combust them. The principle is to reach ignition combustion.

그러나 현재의 가솔린엔진에서는 압축비가 상당히 높아졌으나, 역시 불꽃점화의 원칙은 그대로로 연료를 실린더 내에 1-2단에 걸쳐서 분사시켜 조건에 따라서는 연료와 공기의 균일혼합이 아닌, 일부러 불균일성를 가진 혼합기 상태에서 연소를 행한다.However, in the current gasoline engine, the compression ratio is considerably higher, but also the principle of spark ignition is injected into the cylinder in one or two stages as it is, and depending on the condition, it is not a homogeneous mixture of fuel and air. Combustion is carried out at.

한편, 디젤엔진에서는 일부러 연료의 착화지연기간을 늘려 연료분사개시부터착화까지의 시간을 취함으로서, 혼합의 균일화가 진행 후에 자기착화시키는 연소법의 연구가 활발하게 수행되고 있다. 디젤엔진은 자기착화, 가솔린엔진은 점화 플러그 착화 방식을 유지하면서 연료와 공기의 혼합방법에서는 급속하게 양자가 닮아가고 있다.On the other hand, in diesel engines, the combustion ignition method of self-ignition has been actively conducted by intentionally increasing the ignition delay period of fuel and taking the time from the start of fuel injection to ignition. While diesel engines are self-ignition and gasoline engines are spark plug ignition, they are rapidly becoming alike in the mix of fuel and air.

최근의 일반적인 디젤엔진은 인젝터에서 분사되는 연료를 피스톤에 형성된 보울에서 스월시켜 연료와 공기가 잘 혼합되도록 하여 연소시키는 방법이 주로 사용되고 있다.Recently, a general diesel engine is mainly used to burn fuel injected from an injector by swirling a bowl formed in a piston so that fuel and air are mixed well.

도 9는 종래의 디젤엔진의 연소실을 도시한 것으로서, 흡기의 유입을 위한 흡기포트(1)와 배기가스의 배출을 위한 배기포트(2)가 연소실(3)의 상측에 연결되어 있고, 연소실(3)의 상측 중앙부분에는 연료의 분사를 위한 인젝터(4)가 형성되어 있다.FIG. 9 shows a combustion chamber of a conventional diesel engine, in which an intake port 1 for intake of intake air and an exhaust port 2 for exhaust of exhaust gas are connected to an upper side of the combustion chamber 3, In the upper center portion of 3), an injector 4 for injection of fuel is formed.

상기 인젝터(4)는 보통 5~6개의 분사공을 가지고 있다.The injector 4 usually has 5 to 6 injection holes.

연소실(3)에는 공기 압축을 위한 피스톤(6)이 설치되는데, 이 피스톤(6)의 상면에는 도면에 도시된 것과 같이 인젝터(4)에서 분사되는 연료의 스월을 위한 보울(7)이 형성되어 있으며, 이 보울(7)의 직경은 보통 37~39 mm를 이루고 있다.The combustion chamber 3 is provided with a piston 6 for compressing the air, and a bowl 7 for swirling the fuel injected from the injector 4 is formed on the upper surface of the piston 6. The diameter of this bowl 7 is usually 37 to 39 mm.

따라서 흡기포트(1)를 통해 흡입된 공기가 피스톤(6)의 상승에 의해 압축된 상태에서 인젝터(4)에서 고압의 연료가 분사되면, 상기 인젝터(4)에서 분사된 연료가 상기 피스톤(6)의 상면에 형성된 보울(7)에서 스월을 일으키면서 난류를 형성하는 공기와 잘 혼합되게 된다.Therefore, when high pressure fuel is injected from the injector 4 while the air sucked through the intake port 1 is compressed by the rise of the piston 6, the fuel injected from the injector 4 is the piston 6. In the bowl (7) formed on the upper surface of the) it is mixed with the air forming turbulence whilst swirling.

이와 같이 보울(7) 내에서 공기와 연료가 잘 혼합된 상태에서 점화가 이루어짐에 따라 연소효율이 향상되고, 높은 출력을 얻을 수 있게 되는 것이다.As such, as the ignition is performed in a well mixed state of the air and the fuel in the bowl 7, the combustion efficiency is improved and a high output can be obtained.

그러나 종래에는 보울의 형상이 한정되어 있기 때문에 인젝터에서 분사되는 고압의 연료가 스월을 일으키는 데에 한계를 나타낼뿐 만이 아니라, 종래의 일반적인 연소실은 주연소실 및 부연소실을 제공하지 못하므로서 연소반응을 제어하지 못하여 배기기스를 저감하기 위한 예혼합연소를 실시하기에 부적합하다는 문제점이 있었다.However, since the shape of the bowl is limited in the related art, not only does the high-pressure fuel injected from the injector limit the generation of swirl, but the conventional general combustion chamber does not provide the main combustion chamber and the sub-combustion chamber to control the combustion reaction. There is a problem that it is not suitable for performing premixed combustion to reduce the exhaust gas.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위해서 안출된 것으로서, 보다 상세하게는 연료와 공기를 미리 혼합시킨 후 연소를 수행하므로서 확산연소에서 나타나는 공연비의 RICH영역에서의 연소온도 상승을 방지하여 연소최고온도를 낮춤으로서 녹스 생성을 억제하고, 연소기간을 단축시켜 배출가스의 발생을 저감하는 예혼합연소를 위한 디젤엔진의 연소실을 제공하는 데 목적이 있는 것이다.Therefore, the present invention has been made to solve the above problems, more specifically, the combustion is carried out after mixing the fuel and air in advance to prevent the rise of the combustion temperature in the RICH region of the air-fuel ratio appearing in diffusion combustion, the highest combustion It is an object of the present invention to provide a combustion chamber of a diesel engine for premixed combustion that suppresses the generation of nox by reducing the temperature, shortens the combustion period, and reduces the generation of exhaust gas.

본 발명은 상기와 같은 목적을 달성하기 위한 수단으로서,The present invention as a means for achieving the above object,

실린더헤드의 하면에 연료분사를 위한 인젝터가 형성되고, 실린더라이너 내에서 피스톤이 상하이동하여 인젝터에서 분사된 연료가 압축, 착화되도록 형성되는 디젤엔진의 연소실에 있어서,In the combustion chamber of the diesel engine is formed on the lower surface of the cylinder head for injecting the fuel injection, the piston is moved in the cylinder liner so that the fuel injected from the injector is compressed and ignited,

연소실을 구성하는 실린더헤드의 저면에는 "凹"형상의 요부가 형성되고, 피스톤의 상부에는 "凸"형상의 철부가 형성되므로서, 피스톤의 압축행정시 상기 요부 및 철부가 요철결합되어 연소실이 주연소실 및 부연소실로 분할되고, 피스톤이 상사점까지 상승되면 주연소실에서 연소가 개시되며, 피스톤의 하강시에 주연소실의연소가스가 부연소실로 전파되어 전연소실에 걸쳐서 자기착화가 이루어지는 것을 특징으로 한다.The bottom surface of the cylinder head constituting the combustion chamber is formed with a "凹" -shaped recess, and the upper part of the piston is formed with a "凸" -shaped convex portion, so that the recess and the convex portion are unevenly coupled during the compression stroke of the piston, so that the combustion chamber When the piston rises to the top dead center, combustion starts in the main combustion chamber, and when the piston descends, the combustion gas of the main combustion chamber propagates to the subcombustion chamber and self-ignitions the entire combustion chamber. do.

도 1은 본 발명에 의해 형성된 디젤엔진의 연소실에 흡입공기가 흡입되는 상태를 도시한 도면.1 is a view showing a state in which suction air is sucked into the combustion chamber of the diesel engine formed by the present invention.

도 2 내지 도 7은 본 발명에 의해 구성된 연소실에서 연료가 압축 및 착화되는 과정을 도시한 작동상태도로서,2 to 7 is an operating state diagram showing a process in which the fuel is compressed and ignited in the combustion chamber configured by the present invention,

도 2는 피스톤이 상승하는 단계로서 연소실이 주연소실과 부연소실로 분할되는 단계를 도시한 도면.2 is a diagram illustrating a stage in which a combustion chamber is divided into a main combustion chamber and a subcombustion chamber as a piston is raised;

도 3은 주연소실에 연료가 분사되는 단계를 도시한 도면.3 is a view illustrating a step of injecting fuel into a main combustion chamber.

도 4는 피스톤이 상사점까지 상승되는 단계를 도시한 도면.4 is a diagram illustrating a step in which a piston is raised to a top dead center;

도 5는 화염이 주연소실 내로 전파되는 단계를 도시한 도면.5 shows the propagation of flame into the main combustion chamber.

도 6은 피스톤이 하강하여 주/부연소실의 경계가 없어지는 단계.6 is a step in which the piston descends so that the boundary between the main and sub-combustion chambers disappears.

도 7은 부연소실의 혼합기에 자기착화가 이루어지는 단계를 도시한 도면.7 shows the steps of self ignition to the mixer of the subcombustion chamber.

도 8은 연소실의 연소가스가 배출되는 상태를 도시한 도면.8 is a view showing a state in which the combustion gas of the combustion chamber is discharged.

도 9는 종래기술을 설명하기 위한 도면9 is a view for explaining the prior art

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

10 : 실린더블럭 20 : 실린더헤드10: cylinder block 20: cylinder head

23 : 요부 24 : 인젝터23: main part 24: injector

31 : 주연소실 32 : 부연소실31: Main combustion chamber 32: Sub combustion chamber

40 : 피스톤 41 : 철부40: piston 41: iron

이하, 본 발명의 바람직한 실시예를 첨부한 도면과 함께 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 의해 형성된 디젤엔진의 연소실에 흡입공기가 흡입되는 상태를 도시한 도면이고, 도 2 내지 도 7은 본 발명에 의해 구성된 연소실에서 연료가 압축 및 착화되는 과정을 도시한 작동상태도로서, 도 2는 피스톤이 상승하는 단계로서 연소실이 주연소실과 부연소실로 분할되는 단계를 도시한 것이고, 도 3은 주연소실에 연료가 분사되는 단계를 도시한 도면이고, 도 4는 피스톤이 상사점까지 상승되는 단계를 도시한 도면이고, 도 5는 화염이 주연소실 내로 전파되는 단계를 도시한 도면이고, 도 6은 피스톤이 하강하여 주/부연소실의 경계가 없어지는 단계이고, 도 7은 부연소실의 혼합기에 자기착화가 이루어지는 단계를 도시한 도면이며, 도 8은 연소실의 연소가스가 배출되는 상태를 도시한 도면이다.1 is a view showing a state in which suction air is sucked into the combustion chamber of the diesel engine formed by the present invention, Figures 2 to 7 is an operating state diagram showing the process of the fuel is compressed and ignited in the combustion chamber configured by the present invention. As shown in FIG. 2, a combustion chamber is divided into a main combustion chamber and a subcombustion chamber as a piston is raised, and FIG. 3 is a view illustrating a step of injecting fuel into the main combustion chamber, and FIG. 5 is a view showing a step of rising to the point, Figure 5 is a view showing a step of propagating flame into the main combustion chamber, Figure 6 is a step of lowering the boundary of the main / secondary combustion chamber by the piston descending, Figure 7 FIG. 8 is a diagram illustrating a stage in which self-ignition occurs in a mixer of a subcombustion chamber, and FIG. 8 is a diagram illustrating a state in which combustion gas of a combustion chamber is discharged.

도면 중에 표시되는 도면부호 30은 본 발명에 의해 형성된 연소실을 지시하는 것으로서, 도면부호 31은 주연소실을 도면부호 32는 부연소실을 지시하는 것이다.Reference numeral 30 in the drawing indicates a combustion chamber formed by the present invention, wherein reference numeral 31 designates a main combustion chamber and reference numeral 32 designates a subcombustion chamber.

종래와 같이 실린더블럭(10)에는 연소실(30)을 구성하기 위한 다수의 구멍이 형성되고, 이 구멍에는 피스톤(40)의 상하운동을 안내하기 위한 실린더라이너(11)가 압입된다.As in the prior art, a plurality of holes for forming the combustion chamber 30 are formed in the cylinder block 10, and the cylinder liner 11 for guiding the vertical movement of the piston 40 is press-fitted therein.

또한, 상기 실린더블럭(10)의 상부에는 흡기포트(21) 및 배기포트(22)가 형성된 실린더헤드(20)가 장착되는데, 상기 실린더블럭(10)과 실린더헤드(20)의 결합면에는 실링을 위한 가스켓(미도시) 등이 장착된다.In addition, a cylinder head 20 having an intake port 21 and an exhaust port 22 is mounted on an upper portion of the cylinder block 10, and a sealing surface is coupled to the mating surface of the cylinder block 10 and the cylinder head 20. Gasket (not shown) and the like are mounted.

상기한 연소실(30)의 상부를 이루는 상기 실린더헤드(20)의 하면에는 그 단면형상이 "凹"자 형상인 요부(23)가 형성되는데, 이 요부(23)에 연료를 분사하는 인젝터(24)가 형성된다.The lower surface of the cylinder head 20 forming the upper portion of the combustion chamber 30 is formed with a recess 23 having a cross-sectional shape of a “凹” shape, and an injector 24 for injecting fuel into the recess 23. ) Is formed.

그리고 피스톤(40)의 상면에는 종래처럼 스월을 형성하기 위한 보울이 형성되지 않는 반면에 상측으로 그 단면형상이 "凸"자 형상인 철부(41)가 돌출형성된다.And while the bowl for forming a swirl is not formed on the upper surface of the piston 40, the convex portion 41 having a cross-sectional shape of the "자" shape upward is protruded.

따라서 피스톤(40)이 상승되면서 상기한 연소실(30)이 실린더헤드(20)의 하면에 형성되는 요부(23)와 피스톤(40)의 상부에 일체로 형성되는 철부(41)에 의해서 두개의 주연소실(31) 및 부연소실(32)로 분할되는 것이다.Therefore, as the piston 40 is raised, the two combustion chambers 30 are formed by the recess 23 formed on the lower surface of the cylinder head 20 and the convex portion 41 integrally formed on the upper portion of the piston 40. It is divided into the combustion chamber 31 and the subcombustion chamber 32.

이상과 같이 구성되는 예혼합연소실의 작동을 설명하면 다음과 같다.The operation of the premixed combustion chamber configured as described above is as follows.

디젤엔진이 시동되면 흡기장치에 의해서 상기한 연소실(30)의 흡기포트(21)로는 혼합기가 흡입된다. 이렇게 연소실(30)로 흡입된 혼합기는 도 2에서와 같이 피스톤(40)의 압축행정에 의해서 압축된다.When the diesel engine is started, the mixer is sucked into the intake port 21 of the combustion chamber 30 by the intake apparatus. The mixer sucked into the combustion chamber 30 is compressed by the compression stroke of the piston 40 as shown in FIG.

피스톤(40)이 상승되면 도3과 같이 하나의 공간으로 구성되던 연소실(30)은 두개의 공간인 주연소실(31)과 부연소실(32)로 분할된다. 이 때 연소실(30)이 분할되기 전에 동일하던 압축비는 주연소실(31)의 압축비가 부연소실(32)의 압축비에 비해 높게 형성된다. 이 과정에서 인젝터(24)에서는 주연료가 분사되며,피스톤(40)이 도 4와 같이 상사점까지 상승되면 압축압에 의해 주연소실(31)에서 연소가 개시된다.When the piston 40 is raised, the combustion chamber 30 having one space as shown in FIG. 3 is divided into two spaces, a main combustion chamber 31 and a sub combustion chamber 32. At this time, the compression ratio which was the same before the combustion chamber 30 was divided is formed so that the compression ratio of the main combustion chamber 31 is higher than that of the subcombustion chamber 32. In this process, the main fuel is injected from the injector 24, and when the piston 40 is raised to the top dead center as shown in FIG. 4, combustion is started in the main combustion chamber 31 by the compression pressure.

도 5와 같이 피스톤(40)이 상사점을 넘어 하강하기 시작하면 화염은 주연소실(31)로 확장되고, 도 6과 같이 피스톤(40)의 하강이 더 진행되어 주연소실(31)과 부연소실(32)의 경계가 사라지게 되면 주연소실(31) 내의 고온고압의 연소가스는 부연소실(32)로 전파된다.When the piston 40 begins to descend beyond the top dead center as shown in FIG. 5, the flame is expanded into the main combustion chamber 31, and as the descending of the piston 40 proceeds further as shown in FIG. 6, the main combustion chamber 31 and the subcombustion chamber When the boundary of 32 disappears, the combustion gas of high temperature and high pressure in the main combustion chamber 31 propagates to the subcombustion chamber 32. As shown in FIG.

따라서 도 7과 같이 피스톤(40)의 하강이 더욱 진행되면 부연소실(32)에 존재하던 혼합기는 급속한 자기착화와 연소가 전 연소실에 걸쳐 진행된다.Therefore, as the lowering of the piston 40 further proceeds as shown in FIG. 7, the mixer existing in the sub-combustion chamber 32 undergoes rapid self-ignition and combustion over the entire combustion chamber.

이와 같이 주연소실(31)에서 연료의 연소가 1차로 이루어진 후, 피스톤(40)이 상사점에서 기점으로 하강하는 시점, 즉 연료와 혼합기가 완전히 혼합된 압축행정의 말기에 부연소실(32)의 연료를 연소하게 된다. 따라서 확산연소에서 나타나는 공연비 RICH영역에서의 온도상승이 방지되고, 연소최고온도가 내려가므로서 녹스(NOx)생성이 억제되고, 연소기간이 단축되므로 배기가스가 저감되는 것이다.As described above, after the combustion of fuel is primarily performed in the main combustion chamber 31, the piston 40 lowers from the top dead center to the starting point, that is, at the end of the compression stroke in which the fuel and the mixer are completely mixed. It burns fuel. Therefore, the temperature rise in the air-fuel ratio RICH region appearing in the diffusion combustion is prevented, NOx generation is suppressed as the combustion maximum temperature is lowered, and the combustion period is shortened, thereby reducing the exhaust gas.

이상과 같은 본 발명은 주연소실에서 연료의 연소가 1차로 이루어진 후, 연료와 혼합기가 완전히 혼합된 압축행정의 말기에 부연소실의 연료가 연소되므로서, 확산연소에서 나타나는 공연비 RICH영역에서의 온도상승이 방지되고, 연소최고온도가 내려가므로서 녹스(NOx)생성이 억제되고, 연소기간이 단축되므로 배기가스가 저감되는 커다란 장점이 있는 것이다.In the present invention as described above, after the combustion of the fuel is primarily performed in the main combustion chamber, the fuel of the subcombustion chamber is burned at the end of the compression stroke in which the fuel and the mixer are completely mixed, so that the temperature rise in the air-fuel ratio RICH region that appears in the diffusion combustion. This is prevented, the NOx is suppressed as the combustion maximum temperature is lowered, and the combustion period is shortened, thereby reducing the exhaust gas.

Claims (3)

실린더헤드의 하면에 연료분사를 위한 인젝터가 형성되고, 실린더라이너 내에서 피스톤이 상하이동하여 인젝터에서 분사된 연료가 압축, 착화되도록 형성되는 디젤엔진의 연소실에 있어서,In the combustion chamber of the diesel engine is formed on the lower surface of the cylinder head for injecting the fuel injection, the piston is moved in the cylinder liner so that the fuel injected from the injector is compressed and ignited, 연소실을 구성하는 실린더헤드(20)의 저면에는 "凹"형상의 요부(23)가 형성되고, 피스톤(40)의 상부에는 "凸"형상의 철부(41)가 형성되는 것을 특징으로 하는 예혼합연소를 위한 디젤엔진의 연소실.A premixed portion is formed in the bottom surface of the cylinder head 20 constituting the combustion chamber, and a recessed portion 23 is formed in the upper portion of the piston 40, and a recessed portion 41 in the upper portion of the piston 40 is formed. Combustion chamber of diesel engine for combustion. 제 1 항에 있어서,The method of claim 1, 상기한 피스톤(40)의 압축행정시 상기 요부(23) 및 철부(41)가 요철결합되어 연소실이 주연소실(31) 및 부연소실(32)로 분할되는 것을 특징으로 하는 예혼합연소를 위한 디젤엔진의 연소실.When the compression stroke of the piston 40, the recess 23 and the convex portion 41 is unevenly coupled so that the combustion chamber is divided into the main combustion chamber 31 and the sub-combustion chamber 32, characterized in that for diesel Combustion chamber of the engine. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기한 피스톤(40)이 상사점까지 상승될 때 주연소실(31)에서 우선 연소가 개시되고, 피스톤(40)이 하강되어 상기한 주연소실(31)과 부연소실(32)이 연통될 때 주연소실(31)의 연소가스가 부연소실(32)로 전파되면서 전 연소실에 걸쳐서 자기착화가 이루어지는 것을 특징으로 하는 예혼합연소를 위한 디젤엔진의 연소실.When the piston 40 rises to the top dead center, combustion starts first in the main combustion chamber 31, and when the piston 40 descends, the main combustion chamber 31 and the subcombustion chamber 32 communicate with each other. Combustion chamber of the diesel engine for premixed combustion, characterized in that the combustion gas of the combustion chamber 31 propagates to the sub-combustion chamber (32) to self-ignite over the entire combustion chamber.
KR1020010021034A 2001-04-19 2001-04-19 Compression ignition of homogenous charge combustion KR20020081625A (en)

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Publication number Priority date Publication date Assignee Title
CN110914525A (en) * 2017-04-07 2020-03-24 那提勒斯工程有限责任公司 Improved system and method for compression ignition engine
US11608773B2 (en) 2016-01-14 2023-03-21 Nautilus Engineering, Llc Systems and methods of compression ignition engines

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JPH0466719A (en) * 1990-07-07 1992-03-03 Isuzu Ceramics Kenkyusho:Kk Sub combustion chamber type heat severance engine
US5277159A (en) * 1991-11-26 1994-01-11 Webster Gary D Two stroke diesel engine
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Publication number Priority date Publication date Assignee Title
US11608773B2 (en) 2016-01-14 2023-03-21 Nautilus Engineering, Llc Systems and methods of compression ignition engines
CN110914525A (en) * 2017-04-07 2020-03-24 那提勒斯工程有限责任公司 Improved system and method for compression ignition engine

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