KR20040003989A - Apparatus for exhaust gas recirculation of car - Google Patents

Apparatus for exhaust gas recirculation of car Download PDF

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Publication number
KR20040003989A
KR20040003989A KR1020020039025A KR20020039025A KR20040003989A KR 20040003989 A KR20040003989 A KR 20040003989A KR 1020020039025 A KR1020020039025 A KR 1020020039025A KR 20020039025 A KR20020039025 A KR 20020039025A KR 20040003989 A KR20040003989 A KR 20040003989A
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KR
South Korea
Prior art keywords
exhaust gas
cooling
pipe
turbulence
exhaust
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KR1020020039025A
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Korean (ko)
Inventor
조용국
조용건
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주식회사 코렌스
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Priority to KR1020020039025A priority Critical patent/KR20040003989A/en
Publication of KR20040003989A publication Critical patent/KR20040003989A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
    • F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
    • 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)
  • Exhaust-Gas Circulating Devices (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE: An automobile exhaust gas recirculation system is provided to achieve improved combustion efficiency by permitting the heat exchange operation between the exhaust gas and the cooling pipe to be smoothly performed. CONSTITUTION: A plurality of cooling pipes(5) are arranged in the lengthwise direction of a cooling reservoir in such a manner that the exhaust gas is supplied from an exhaust manifold to an intake manifold at the state where the exhaust gas is cooled. An exhaust gas supply pipe coupled to ends of the exhaust manifold and the intake manifold is arranged at both sides of the cooling reservoir. A coolant circulation pipe is arranged at the upper and lower sides of the cooling reservoir. A turbulence promotor(8) is coupled to ends of both sides of the cooling pipe, and the exhaust gas passing through the cooling pipe has a turbulence. The turbulence promotor has a plurality of turbulence plates(8b) arranged in rear of a flared tube(8a).

Description

자동차 배기가스 재순환장치{Apparatus for exhaust gas recirculation of car}Apparatus for exhaust gas recirculation of car}

본 발명은 자동차의 배기가스 재순환장치에 관한 것으로써, 보다 상세하게는 흡기매니폴드로 재 순환되는 고온(1000℃)의 배기가스가 충분하게 냉각된 상태로 공급될 수 있도록 하여 연소실의 연소효율을 극대화하고 질소산화물의 발생량을 억제할 수 있도록 한 자동차의 배기가스 재순환장치를 제공코자 한 것이다.The present invention relates to an exhaust gas recirculation apparatus of an automobile, and more particularly, it is possible to supply the exhaust gas of a high temperature (1000 ° C.) recycled to the intake manifold in a sufficiently cooled state to improve the combustion efficiency of the combustion chamber. It is to provide a vehicle exhaust gas recirculation device that can maximize and suppress the generation of nitrogen oxides.

일반적으로 자동차 배기가스는 연소실의 혼합기나 미연소가스가 엔진의 크랭크케이스로 새어나오는 블로바이가스(Blow-byGas), 연료탱크 내의 연료가 증발하여 대기 중으로 방출되는 연료증발가스, 그리고 배기 계통으로 배출되는 배기가스 등이 있다.In general, vehicle exhaust gas is blow-by gas, in which the combustion chamber's mixer or unburned gas is leaked into the engine's crankcase, fuel evaporation gas released from the fuel tank to the atmosphere, and exhaust gas to the exhaust system. Exhaust gas and the like.

이러한 자동차 배기가스는 일산화탄소(CO), 질소산화물(NOx), 탄화수소(HC) 등의 유해물질이 포함되어 있으며, 이러한 유해물질은 엔진의 작동조건, 공기비, 점화시기, 점화장치, 혼합기장치 등 제반 사항에 따라 그 배출특성이 달라지게 되며, 특히 질소산화물(NOX)의 경우에는 연소실의 온도와 압력이 높은 동시에 공기 과잉상태일 때 주로 발생한다. 그런데, 질소산화물은 실린더 연소실내에서의 연소온도가 낮아지게 되면 그 발생량이 현저하게 감소하게 되는 데, 이점을 이용하여 혼합기의 연소시에 질소산화물의 생성을 억제하기 위한 기술로 배기가스 재순환(EGR : ExhaustGas Recirculation)장치가 개발되어 있다.The vehicle exhaust gas contains harmful substances such as carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and the like, and these harmful substances include engine operating conditions, air cost, ignition timing, ignition device, mixer, etc. The emission characteristics vary depending on the matter, and especially nitrogen oxides (NOX) occur mainly when the temperature and pressure of the combustion chamber are high and in excess of air. However, when the combustion temperature in the cylinder combustion chamber is lowered, the amount of nitrogen oxides is significantly reduced. By utilizing this advantage, nitrogen oxides are used to suppress the generation of nitrogen oxides during combustion of the mixer. ExhaustGas Recirculation device has been developed.

상기한 배기가스 재순환장치(1)는 배기매니폴드(manifold)(2)를 통하여 배기되는 배기가스의 일부를 흡기매니폴드(3)로 재 순환시켜 연소효율을 향상시킬 수 있도록 한 것으로 이의 일반적인 구성은 도 1,2에 도시된 바와 같이 배기매니폴드(2)에서 흡기매니폴드(3) 쪽으로 배기가스가 냉각된 상태로 공급될 수 있도록 밀폐된 파이프형 냉각조(4)의 길이방향으로 수 개의 냉각관(5)을 배관하고 냉각조(4) 양측으로는 배기매니폴드(2)와 흡기매니폴드(3)에 각각 일단이 결합된 배기가스공급관(6)을 배관하며, 냉각조(4) 상하측으로는 냉각수가 순환되도록 냉각수순환관(7)을 배관한 구성이다.The exhaust gas recirculation apparatus 1 is configured to recirculate a part of the exhaust gas exhausted through the exhaust manifold 2 to the intake manifold 3 to improve combustion efficiency. As shown in Figs. 1 and 2, the exhaust pipe manifolds are arranged in the longitudinal direction of the sealed pipe type cooling tank 4 so that the exhaust gas can be supplied from the exhaust manifold 2 toward the intake manifold 3 in a cooled state. Piping the cooling pipe (5) and the exhaust gas supply pipe (6) having one end coupled to the exhaust manifold (2) and the intake manifold (3) on both sides of the cooling tank (4), the cooling tank (4) The cooling water circulation pipe 7 is piped so that the cooling water circulates up and down.

도면중 미설명 부호 10은 엔진을 도시한 것이고, 11은 연소실을 도시한 것이다.In the drawings, reference numeral 10 denotes an engine, and 11 denotes a combustion chamber.

그러나 상기와 같이 구성되는 배기가스 재순환(1)의 경우 배기매니폴드(2) 측에서 흡기매니폴드(3) 측으로 이동하는 배기가스가 냉각관(5)을 통과할 때 배기가스가 자연스럽게 통과하게 되어 냉각이 원활하게 이루어지지 못하게 된다. 즉, 냉각관(5)으로 유입되어 이동하는 배기가스는 표면 경계층의 발달로 인해 냉각관 중심부에 비해 냉각관 표면부의 배기재순환가스의 속도가 현저히 감소됨은 물론이고 냉각관(5)과 접하는 외측은 신속히 냉각이 이루어지나 냉각관(5)과 접하지 않는 내측은 냉각이 이루어지지 않은 상태에서 흡기매니폴드(3)로 공급되게 되므로 냉각효율이 떨어지고 그로 인해 배기가스 재순환장치(1)의 기능이 원활치 못하였다.However, in the case of the exhaust gas recirculation 1 configured as described above, when the exhaust gas moving from the exhaust manifold 2 side to the intake manifold 3 side passes through the cooling pipe 5, the exhaust gas naturally passes. Cooling will not be smooth. In other words, the exhaust gas flowing into the cooling pipe 5 is significantly reduced in velocity of the exhaust recirculating gas at the surface of the cooling pipe compared with the center of the cooling pipe due to the development of the surface boundary layer. Cooling is rapidly performed, but the inner side which is not in contact with the cooling tube 5 is supplied to the intake manifold 3 without cooling, and thus the cooling efficiency decreases, and thus the function of the exhaust gas recirculation device 1 is not smooth. I couldn't.

그리고 장시간 사용 시 이동되는 배기가스 속도저하로 인해 냉각관(5) 내부에 검댕(PM soot)의 표면 흡착이 발생되고 이러한 표면 흡착으로 인해 냉각관(5)의 직경이 좁아짐으로 인해 배기가스가 원활하게 공급되지 못하여 냉각능력이 저하되는 등의 여러 문제점이 있었다.In addition, the surface gas of soot (PM soot) is generated in the cooling tube 5 due to the decrease in the exhaust gas velocity during long time use, and the surface of the cooling tube 5 is narrowed by the surface adsorption, so the exhaust gas is smooth. There were a number of problems, such as not being able to supply the cooling capacity is lowered.

이에 본 발명에서는 상기한 바와 같은 종래의 배기가스 재순환장치가 갖는 제반 문제점을 일소코자 연구 개발한 것으로서,In the present invention, as a result of research and development of all the problems of the conventional exhaust gas recirculation device as described above,

본 발명에서는 냉각관에 난류발생기를 결합하여 냉각관을 통과하는 배기가스가 냉각관 내부에서 난류현상에 의해 와류 이동되면서도 이동속도를 균일하게 함으로써, 냉각관과의 마찰 극대화로 냉각효율을 높이고, 냉각관 내부에 검댕이 달라붙는 것을 방지할 수 있게 하여 흡기매니폴드로 공급되는 배기가스의 온도를 효과적으로 저하시켜 연소실내에서의 연소온도를 낮아지게 하여 질소산화물의 발생량이 현저하게 감소되도록 함에 본 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.In the present invention, by combining the turbulence generator in the cooling tube and the exhaust gas passing through the cooling tube to move the vortex by the turbulent phenomena inside the cooling tube to uniform the moving speed, to maximize the friction with the cooling tube to increase cooling efficiency, It is possible to prevent soot from sticking inside the pipe to effectively reduce the temperature of the exhaust gas supplied to the intake manifold to lower the combustion temperature in the combustion chamber so that the amount of nitrogen oxides is significantly reduced. The present invention has been completed with a problem.

도 1은 자동차 배기가스 재순환장치의 개략적인 구성도1 is a schematic configuration diagram of a vehicle exhaust gas recirculation apparatus

도 2는 종래의 자동차 배기가스 재순환장치의 냉각조 구성 단면도Figure 2 is a cross-sectional view of the configuration of the cooling tank of the conventional vehicle exhaust gas recirculation device

도 3은 본 발명에 적용되는 난류발생기의 일 실시예를 보인 사시도Figure 3 is a perspective view showing an embodiment of the turbulence generator applied to the present invention

도 4는 본 발명의 난류발생기에 의한 배기가스의 흐름을 보인 단면도Figure 4 is a cross-sectional view showing the flow of exhaust gas by the turbulence generator of the present invention

☞ 도면의 주요부분에 사용된 부호의 설명 ☜☞ Explanation of symbols used in the main part of the drawing ☜

1:(자동차) 배기가스 재순환장치2:배기매니폴드1: (car) exhaust gas recirculation device 2: exhaust manifold

3:흡기매니폴드4:냉각조3: intake manifold 4: cooling tank

5:냉각관6:배기가스공급관5: cooling pipe 6: exhaust gas supply pipe

7:냉각수순환관8:난류발생기7: cooling water circulation pipe 8: turbulence generator

8a:나팔관8b:난류판8a: fallopian tube 8b: heating plate

도 3은 본 발명에 적용되는 난류발생기의 일 실시예를 보인 사시도를 도시한 것이고, 도 4는 본 발명의 난류발생기에 의한 배기가스의 흐름을 보인 단면도를 도시한 것으로서, 이하에서 본 발명의 구성을 설명하기로 한다.Figure 3 is a perspective view showing an embodiment of a turbulence generator applied to the present invention, Figure 4 is a cross-sectional view showing the flow of exhaust gas by the turbulence generator of the present invention, the configuration of the present invention below Will be described.

본 발명은 도 1,2에 도시된 바와 같이 배기매니폴드(2)에서 흡기매니폴드(3) 쪽으로 배기가스가 냉각된 상태로 공급될 수 있도록 밀폐된 파이프형 냉각조(4)의 길이방향으로 수 개의 냉각관(5)을 배관하고 냉각조(4) 양측으로는배기매니폴드(2)와 흡기매니폴드(3)에 각각 일단이 결합된 배기가스공급관(6)을 배관하며, 냉각조(4) 상하측으로는 냉각수가 순환되는 냉각수순환관(7)을 배관한 자동차 배기가스 재순환장치(1)를 구성함에 있어서, 냉각조(4) 내부의 냉각관(5) 구성을 연구 개발하여 냉각관(5)을 통과하는 배기가스의 온도저하가 보다 효과적으로 이루어질 수 있도록 한 것이다.The present invention, as shown in Figures 1 and 2 in the longitudinal direction of the sealed pipe-like cooling tank (4) so that the exhaust gas is supplied to the intake manifold (3) from the exhaust manifold (2) in a cooled state Pipe several cooling pipes (5) and pipe exhaust gas supply pipes (6) having one end coupled to exhaust manifold (2) and intake manifold (3) on both sides of cooling tank (4). In the configuration of the vehicle exhaust gas recirculation device 1 in which the cooling water circulation pipe 7 through which the cooling water is circulated, the upper and lower sides, the configuration of the cooling tube 5 inside the cooling tank 4 is researched and developed. This is to reduce the temperature of exhaust gas passing through 5) more effectively.

즉, 본 발명에서는 냉각조(4)의 길이방향으로 배관되는 수 개의 냉각관(5)의 양측 단부에 난류발생기(8)를 결합하여 냉각관(5) 내부를 통과하는 배기가스에 난류 형상이 일어나면서 와류 이동되도록 하고 냉각관(5)의 통과한 배기가스가 확산 이동되도록 한 것이다.That is, in the present invention, the turbulence shape is formed in the exhaust gas passing through the inside of the cooling pipe 5 by coupling the turbulence generator 8 to both end portions of several cooling pipes 5 piped in the longitudinal direction of the cooling tank 4. As it happens, the vortex is moved and the exhaust gas passing through the cooling pipe 5 is diffused and moved.

상기 난류발생기(8)는 나팔관(8a) 후방에 일정 간격으로 수 개의 난류판(8b)을 형성하되, 이때 난류판(8b)은 중심측으로 테이퍼짐과 동시에 나선형으로 휘어진 구성이다.The turbulence generator 8 forms several turbulence plates 8b at regular intervals behind the fallopian tube 8a, where the turbulence plates 8b are tapered to the center and spirally bent.

이상과 같이 구성되는 본 발명의 자동차 배기가스 재순환장치(1)는 배기되는 배기가스의 일부를 흡기매니폴드(3)로 공급하여 연소실(11)의 온도를 낮추어 질소산화물의 발생량을 최소화하는 용도로 사용되는 것으로서, 배기가스가 배기가스공급관(6)을 따라서 흡기매니폴드(3)로 공급되는 중도에 냉각조(4)를 통과하면서 냉각되게 되는 바,Automobile exhaust gas recirculation apparatus 1 of the present invention configured as described above is to supply a part of the exhaust gas to the intake manifold 3 to lower the temperature of the combustion chamber 11 to minimize the amount of nitrogen oxides generated As used, the exhaust gas is cooled while passing through the cooling tank 4 in the middle of being supplied to the intake manifold 3 along the exhaust gas supply pipe 6,

본 발명에 의하면 냉각조(4) 내에 배관되어 있는 냉각관(5)의 양측으로 난류발생기(8)가 결합되어 있으므로 도 4에 도시된 바와 같이 냉각관(5)으로 공급되는배기가스가 난류발생기(8)의 나팔관(8a)에 의해 난류판(8b)측으로 자연스럽게 공급되고 난류판(8b) 측으로 공급된 배기가스는 중심측으로 테이퍼짐과 동시에 나선형으로 휘어진 구성의 난류판(8b)에 의해 냉각관(5) 내부에서 난류현상이 일어나면서 와류 이동하게되며 냉각관(5)을 통과하는 시점에서는 나팔관(8a)을 통해 확산 배출되므로 냉각관(5)을 통과하는 배기가스의 속도를 균일하게 제어하여 냉각관(5) 내부와의 마찰이 원활하게 이루어져 냉각이 효과적으로 이루어지게 되고, 냉각관(5) 내부에 검댕(soot)이 달라붙는 것을 방지하게 되므로 종래의 재순환장치에 비해 우수한 냉각능력을 가질 수 있다.According to the present invention, since the turbulence generators 8 are coupled to both sides of the cooling tube 5 which are piped in the cooling tank 4, the exhaust gas supplied to the cooling tube 5 is turbulent as shown in FIG. 4. The exhaust gas naturally supplied to the turbulent plate 8b side by the fallopian tube 8a of (8) and supplied to the turbulent plate 8b side is cooled by the turbulent plate 8b of the configuration which is tapered to the center side and is spirally bent. (5) Turbulent phenomena occur in the interior and move vortex, and when passing through the cooling tube (5) is diffused and discharged through the fallopian tube (8a) to control the speed of the exhaust gas passing through the cooling tube (5) uniformly Since the friction with the inside of the cooling tube 5 is smooth, cooling is effectively performed, and soot is prevented from sticking to the inside of the cooling tube 5, so that the cooling tube 5 can have superior cooling capability compared to the conventional recirculation apparatus. There .

즉, 종래에는 냉각관(5)을 통하여 이동하는 배기가스가 저항 없이 이동하게 되어 냉각관(5)과 접하는 측은 온도가 급격히 저하되고 냉각관(5)과 접하지 않는 측은 온도 저하가 이루어지지 않은 상태로 흡기매니폴드(3)에 공급되나, 본 발명에서는 냉각관(5)을 통과하는 배기가스가 난류발생기(8)의 난류판(8b)에 의해 냉각관(5) 내에서 와류되면서 배기가스 전체가 냉각관(5)과 접촉되면서 균일한 속도로 이동함으로 이동되는 배기가스가 충분한 온도저하가 이루어진 상태로 흡기매니폴드(3)로 이동하게 되므로 연소실(11) 내의 온도를 효과적으로 낮추어 질소산화물의 발생량을 최소화 할 수 있게 되는 것이다.That is, in the related art, the exhaust gas moving through the cooling tube 5 moves without resistance, so that the temperature of the side in contact with the cooling tube 5 decreases rapidly and the temperature of the side of the side not in contact with the cooling tube 5 does not decrease. Although supplied to the intake manifold 3 in the state, in the present invention, the exhaust gas passing through the cooling tube 5 is vortexed in the cooling tube 5 by the turbulence plate 8b of the turbulence generator 8 and exhaust gas. As the whole is brought into contact with the cooling tube 5, the exhaust gas, which is moved at a uniform speed, moves to the intake manifold 3 in a state where a sufficient temperature decrease is achieved, thereby effectively lowering the temperature in the combustion chamber 11 to reduce nitrogen oxides. The amount of generation can be minimized.

이상과 같이 구성 및 작용되는 본 발명의 자동차 배기가스 재순환장치(1)는 냉각관(5)의 양측에 나팔관(8a) 후방으로 중심측으로 테이퍼짐과 동시에 나선형으로 휘어진 수 개의 난류판(8b)이 일정 간격으로 형성된 난류발생기(8)를 결합하는 간단한 구성으로 이루어지는 것으로서, 본 발명에 의하면 냉각관(5)을 통과하는 배기가스가 냉각관(5) 내에서 균일한 속도의 난류 상태로 이동하여 배기가스와 냉각관(5) 간의 열 교환이 충분히 이루어지도록 함으로서 흡기매니폴드(3)를 통해 연소실(11)로 재 공급되는 배기가스의 온도를 저하시키고 냉각관(5) 내부에 검댕이 달라붙는 것을 방지하여 항상 최적의 상태로 냉각된 배기가스를 연소실(11)로 공급할 수 있어 연소실(11) 내의 온도를 효과적으로 저하시켜 연소효율을 향상, 질소산화물의 발생률도 저감 등과 같은 다수의 효과를 득할 수 있는 매우 유용한 발명이다.The vehicle exhaust gas recirculation apparatus 1 of the present invention constructed and operated as described above has several turbulent plates 8b that are tapered and spirally curved at the center of the back of the fallopian tube 8a on both sides of the cooling tube 5. It consists of a simple configuration for coupling the turbulence generators 8 formed at regular intervals, according to the invention the exhaust gas passing through the cooling tube 5 is moved to the turbulent state of a uniform speed in the cooling tube 5 to exhaust The heat exchange between the gas and the cooling tube 5 is sufficiently performed to reduce the temperature of the exhaust gas supplied back to the combustion chamber 11 through the intake manifold 3 and to prevent soot from sticking inside the cooling tube 5. The exhaust gas cooled to the optimum state can always be supplied to the combustion chamber 11, which effectively lowers the temperature in the combustion chamber 11, thereby improving combustion efficiency and reducing the generation rate of nitrogen oxides. It is a very useful invention that can deukhal a number of effects.

Claims (1)

배기매니폴드(2)에서 흡기매니폴드(3) 쪽으로 배기가스가 냉각된 상태로 공급될 수 있도록 밀폐된 파이프형 냉각조(4)의 길이방향으로 수 개의 냉각관(5)을 배관하고 냉각조(4) 양측으로는 배기매니폴드(2)와 흡기매니폴드(3)에 각각 일단이 결합된 배기가스공급관(6)을 배관하며, 냉각조(4) 상하측으로는 냉각수가 순환되는 냉각수순환관(7)을 배관한 자동차 배기가스 재순환장치(1)에 있어서,Pipe several cooling pipes (5) in the longitudinal direction of the sealed pipe type cooling tank (4) so that the exhaust gas is cooled from the exhaust manifold (2) to the intake manifold (3). (4) On both sides, an exhaust gas supply pipe 6 having one end coupled to the exhaust manifold 2 and the intake manifold 3 is piped, and a cooling water circulation pipe through which cooling water is circulated to the upper and lower sides of the cooling tank 4. In the automobile exhaust gas recirculation apparatus (1) which piped (7), 상기 냉각조(4)의 길이방향으로 배관되는 수 개의 냉각관(5) 양측 단부에 난류발생기(8)를 결합하여 냉각관(5) 내부를 통과하는 배기가스에 난류 형상이 일어나면서 균일한 속도로 와류 이동되도록 하고 냉각관(5)의 통과한 배기가스가 확산 이동되도록 하되,By combining turbulence generators 8 at both ends of several cooling pipes 5 piped in the longitudinal direction of the cooling tank 4, a turbulent shape occurs in the exhaust gas passing through the cooling pipe 5, thereby providing a uniform velocity. To the vortex movement to the exhaust gas passing through the cooling pipe (5), 상기 난류발생기(8)는 나팔관(8a) 후방에 중심측으로 테이퍼짐과 동시에 나선형으로 휘어진 수 개의 난류판(8b)을 일정 간격으로 형성한 것을 특징으로 하는 자동차 배기가스 재순환장치.The turbulence generator (8) is a vehicle exhaust gas recirculation apparatus, characterized in that formed at several intervals of the turbulent plate (8b) is tapered at the same time as the center side at the rear of the fallopian tube (8a).
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016143963A1 (en) * 2015-03-06 2016-09-15 (주) 대명엔지니어링 Apparatus for generating turbulent flow in pipe for heat exchanger

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KR19980016050A (en) * 1996-08-26 1998-05-25 김영귀 Surge tank surge device
KR20000012179A (en) * 1999-04-22 2000-03-06 윤일용 A waste-gas reduction device of an internal combustion engine
JP2001272193A (en) * 2000-03-29 2001-10-05 Calsonic Kansei Corp Core section of egr gas cooler and method of manufacturing the same
JP2001289583A (en) * 2000-04-10 2001-10-19 Usui Internatl Ind Co Ltd Egr gas cooler
JP2001342912A (en) * 2000-06-05 2001-12-14 Hino Motors Ltd Egr cooler

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Publication number Priority date Publication date Assignee Title
KR19980016050A (en) * 1996-08-26 1998-05-25 김영귀 Surge tank surge device
KR20000012179A (en) * 1999-04-22 2000-03-06 윤일용 A waste-gas reduction device of an internal combustion engine
JP2001272193A (en) * 2000-03-29 2001-10-05 Calsonic Kansei Corp Core section of egr gas cooler and method of manufacturing the same
JP2001289583A (en) * 2000-04-10 2001-10-19 Usui Internatl Ind Co Ltd Egr gas cooler
JP2001342912A (en) * 2000-06-05 2001-12-14 Hino Motors Ltd Egr cooler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016143963A1 (en) * 2015-03-06 2016-09-15 (주) 대명엔지니어링 Apparatus for generating turbulent flow in pipe for heat exchanger

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