KR20100011519A - Intake manifold structure - Google Patents

Intake manifold structure Download PDF

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Publication number
KR20100011519A
KR20100011519A KR1020080072771A KR20080072771A KR20100011519A KR 20100011519 A KR20100011519 A KR 20100011519A KR 1020080072771 A KR1020080072771 A KR 1020080072771A KR 20080072771 A KR20080072771 A KR 20080072771A KR 20100011519 A KR20100011519 A KR 20100011519A
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South Korea
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egr
intake manifold
intake
manifold structure
connection part
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KR1020080072771A
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Korean (ko)
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KR101393941B1 (en
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권상욱
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현대자동차주식회사
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    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10327—Metals; Alloys
    • 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)

Abstract

PURPOSE: An intake manifold structure is provided to increase distribution property of EGR gas without a separate EGR adapter using an EGR connection part and a heat injury prevention member. CONSTITUTION: An intake manifold structure comprises an EGR(Exhaust Gas Recirculation) connection part(310). The EGR connection part is included on a flange(300) of the intake manifold. Each suction pipe(200) is interlinked. The EGR connection part comprises a linking groove(311) and a connection pathway(312). The linking groove is formed in the surface of the flange. The connection pathway interlinks the suction pipe and the linking groove. A bottom plate(321) is supported in the floor side of the EGR connection part. A side board(322) is supported in the inner wall of the EGR connection part.

Description

흡기 매니폴드 구조{INTAKE MANIFOLD STRUCTURE}Intake manifold structure {INTAKE MANIFOLD STRUCTURE}

본 발명은 흡기 매니폴드 구조에 관한 것으로서, 더욱 상세하게는 별도의 EGR 어댑터 없이도 실린더 헤드의 흡입 포트로 유입되는 EGR 가스의 분배성 및 원가를 절감할 수 있는 흡기 매니폴드 구조에 관한 것이다.The present invention relates to an intake manifold structure, and more particularly to an intake manifold structure that can reduce the distribution and cost of the EGR gas flowing into the suction port of the cylinder head without a separate EGR adapter.

일반적으로 공기는 약 79%의 질소와 21%의 산소 및 기타 미량의 원소로 구성되고, 상기 질소와 산소는 상온에서 서로 반응을 일으키지 않지만 고온(약 1450℃ 이상)에서는 서로 반응하여 질소산화물(NOx)이 된다.In general, air is composed of about 79% nitrogen, 21% oxygen and other trace elements, and the nitrogen and oxygen do not react with each other at room temperature but react with each other at high temperatures (above about 1450 ° C) to form nitrogen oxides (NOx). )

특히 디젤엔진은 압축착화방식으로 연소를 일으키며, 실린더의 재질 발달로 인해 압축비가 점점 더 높아져 연소실의 온도가 높아지고 있고, 이와 같은 연소실 온도의 상승은 열역학적 엔진 효율을 증대시키지만, 고온으로 인해 질소산화물이 다량으로 발생하고 있다. In particular, diesel engines generate combustion by compression ignition method, and the compression ratio is getting higher due to the development of cylinder material, so that the temperature of the combustion chamber is increased. It is occurring in large quantities.

이러한 질소산화물은 지구환경을 파괴하는 주요 유해물질로써, 산성비, 광학 스모그, 호흡기 장애 등을 일으킨다.These nitrogen oxides are the major harmful substances that destroy the global environment, causing acid rain, optical smog, respiratory disorders, and the like.

상기와 같은 디젤엔진에서 배출되는 질소산화물을 제거하기 위해 디젤엔진에는 자동차 배기가스 재순환장치(EGR: Exhaust Gas Recirculation, 이하 'EGR'이라 한다)가 설치되어 있다.In order to remove nitrogen oxides emitted from the diesel engine, an exhaust gas recirculation device (EGR: Exhaust Gas Recirculation, hereinafter referred to as 'EGR') is installed in the diesel engine.

즉, 상기 EGR은 배기가스의 일부를 다시 흡기계로 재순환시키고, 이 흡입공기 중의 CO2 농도를 증대시켜 연소실의 온도를 저하시키고, 이를 통해 NOx를 저감시키는 기술이다.That is, the EGR is a technique of recycling a part of the exhaust gas back to the intake system, increasing the concentration of CO 2 in the intake air to lower the temperature of the combustion chamber, and thereby reducing the NOx.

도 1은 종래기술에 따른 EGR 시스템을 나타낸 도면이고, 도 2는 도 1에 도시된 EGR 어댑터를 나타낸 도면이다.1 is a view showing an EGR system according to the prior art, Figure 2 is a view showing the EGR adapter shown in FIG.

종래기술에 따른 EGR 시스템은 도 1에 도시된 바와 같이, 엔진(미도시) 구동시 발생한 배기가스가 토출되는 배기 매니폴드(10), 상기 배기 매니폴드(10)를 통과하는 배기가스 중 일부(EGR 가스)를 흡기 매니폴드(40)로 공급하는 EGR 파이프(20), 상기 EGR 파이프(20)를 개폐하는 EGR 밸브(30)를 포함하며, 상기 EGR 밸브(30)를 통과하는 EGR 가스는 흡기 매니폴드(40)를 통해 실린더 헤드(60)에 공급된다.As shown in FIG. 1, an EGR system according to the related art includes an exhaust manifold 10 through which exhaust gas generated when an engine (not shown) is driven, and a part of exhaust gas passing through the exhaust manifold 10 ( EGR pipe 20 for supplying EGR gas) to the intake manifold 40, and an EGR valve 30 for opening and closing the EGR pipe 20, wherein the EGR gas passing through the EGR valve 30 is intake air. It is supplied to the cylinder head 60 through the manifold 40.

그리고 상기 흡기 매니폴드(40)와 실린더 헤드(60) 사이에는 흡기 매니폴드(40)의 열해방지 및 EGR 가스를 분배성을 향상시키기 위한 EGR 어댑터(50)가 장착된다. An EGR adapter 50 is installed between the intake manifold 40 and the cylinder head 60 to prevent thermal degradation of the intake manifold 40 and to improve distribution of the EGR gas.

즉, 상기 EGR 어댑터(50)는 도 2에 도시된 바와 같이, 흡기 매니폴드(40)의 각 흡기관이 연결되도록 형성함으로써 각 포트별로 들어가는 EGR 가스의 분배성이 좋다.That is, the EGR adapter 50 is formed to be connected to each intake pipe of the intake manifold 40, as shown in Figure 2 is good distribution of the EGR gas entering each port.

그러나 종래의 EGR 시스템은 흡기 매니폴드의 열해방지 및 분배성을 향상시키기 위해 별도의 EGR 어댑터(50)를 장착함으로써 제조공정이 복잡하고, 제조원가 및 중량이 상승하는 문제점이 있었다.However, the conventional EGR system has a problem in that the manufacturing process is complicated and manufacturing cost and weight are increased by installing a separate EGR adapter 50 to prevent thermal degradation and distribution of the intake manifold.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 흡기 매니폴드를 개선하여 별도의 EGR 어댑터 없이도 열해방지 및 분배성을 향상시킬 수 있고, 더불어 원가와 중량을 감소시킬 수 있는 흡기 매니폴드 구조를 제공하는데 있다.The present invention has been made to solve the above problems, an object of the present invention is to improve the intake manifold to improve the thermal degradation prevention and distribution without a separate EGR adapter, and can also reduce the cost and weight To provide an intake manifold structure.

상기와 같은 목적을 달성하기 위한 본 발명은 흡기 매니폴드의 플랜지에 구비되고 각 흡기관을 연결하는 EGR 연결부를 포함하는 것을 특징으로 한다.The present invention for achieving the above object is characterized in that it comprises an EGR connecting portion provided on the flange of the intake manifold and connecting each intake pipe.

상기 EGR 연결부는 상기 플랜지의 표면에 형성되는 연결홈과, 상기 흡기관과 연결홈을 연결하는 연결통로를 포함하는 것을 특징으로 한다.The EGR connecting portion includes a connecting groove formed on the surface of the flange and a connecting passage connecting the intake pipe and the connecting groove.

상기 EGR 연결부에는 흡기 매니폴드의 열해를 방지하기 위한 열해방지부재를 구비하는 것을 특징으로 한다.The EGR connection portion is characterized in that it is provided with a thermal degradation prevention member for preventing thermal degradation of the intake manifold.

상기 열해방지부재는 EGR 연결부의 바닥면에 지지되는 바닥판과, 상기 EGR 연결부의 내벽에 지지되는 측면판을 포함하며, 상기 측면판에는 연결통로와 통하도록 관통홈을 형성하는 것을 특징으로 한다.The thermal degradation prevention member includes a bottom plate supported on the bottom surface of the EGR connection portion, and a side plate supported on the inner wall of the EGR connection portion, wherein the side plate is characterized in that the through grooves to communicate with the connection passage.

상기 열해방지부재는 EGR 연결부에 착탈이 가능하게 구비되는 것을 특징으로 한다.The thermal degradation prevention member is characterized in that the detachable to the EGR connection portion.

상기 흡기매니폴드는 합성수지로 제조되며, 상기 열해방지부재는 알루미늄으로 제조되는 것을 특징으로 한다.The intake manifold is made of synthetic resin, and the heat dissipation preventing member is made of aluminum.

상기와 같이 본 발명은 흡기 매니폴드의 플랜지에 각 흡기관을 연결하는 EGR 연결부와 열해방지부재를 구비함으로써 별도의 EGR 어댑터를 사용하지 않고도 열해방지 및 EGR 가스 분배성을 향상시킬 수 있으며, 더불어 원가 및 중량을 감소시킬 수 있는 효과가 있다.As described above, the present invention includes an EGR connection portion and a heat dissipation preventing member that connect each intake pipe to the flange of the intake manifold, thereby improving heat dissipation prevention and EGR gas distribution without using a separate EGR adapter. And the effect of reducing the weight.

이하, 본 발명의 흡기 매니폴드 구조를 첨부된 도 3 내지 도 5를 참조하여 상세히 설명한다.Hereinafter, the intake manifold structure of the present invention will be described in detail with reference to FIGS. 3 to 5.

본 발명의 흡기 매니폴드 구조는 도 3 및 도 4에 도시된 바와 같이, 배기 매니폴드로부터 배기되는 배기가스 중 일부(EGR 가스)를 실린더 헤드(미도시)의 흡기포트에 공급되도록 연결하는 것으로, 합성수지로 제조되며, 일측에는 EGR 파이프(미도시)에 연결된 EGR 밸브(미도시)에 결합되는 EGR 가스 흡입부(100)가 형성되고, 타측에는 실린더 헤드에 형성된 다수개의 흡기포트에 EGR 가스를 각각 분사하기 위한 다수개의 흡기관(200)이 형성되며, 상기 다수개의 흡기관(200) 선단에는 플랜지(300)가 형성되고, 상기 플랜지(300)를 통해 상기 흡기관(200)과 실린더 헤드의 흡기포트를 연결하고, 밀폐시키게 된다.3 and 4, the intake manifold structure of the present invention is to connect a portion (EGR gas) of the exhaust gas exhausted from the exhaust manifold to be supplied to the intake port of the cylinder head (not shown), Made of synthetic resin, one side is formed with an EGR gas intake unit 100 coupled to an EGR valve (not shown) connected to an EGR pipe (not shown), and the other side of the EGR gas is provided in a plurality of intake ports formed in the cylinder head. A plurality of intake pipes 200 for injection are formed, and a flange 300 is formed at the front end of the plurality of intake pipes 200, and the intake pipes 200 and the intake air of the cylinder head are formed through the flange 300. The port is plugged in and sealed.

여기서, 상기 플랜지(300)에는 다수개의 흡기관(200)으로부터 공급되는 EGR 가스가 흡기포트에 균일하게 분배될 수 있도록 하는 EGR 연결부(310)와 EGR 연결부(310)의 열해를 방지하기 위한 열해방지부재(320)가 구비된다.Here, the flange 300 has a thermal damage prevention for preventing thermal degradation of the EGR connection portion 310 and the EGR connection portion 310 so that EGR gas supplied from the plurality of intake pipes 200 can be uniformly distributed to the intake port. The member 320 is provided.

상기 EGR 연결부(310)는 흡기관(200)의 EGR 배출구 부위를 통하도록 연결하 기 위한 것으로, 이를 통해 다수개의 흡기관(200)를 통과하는 EGR 가스의 량을 균일하게 조절할 수 있다.The EGR connection portion 310 is for connecting through the EGR outlet portion of the intake pipe 200, through which the amount of EGR gas passing through the plurality of intake pipe 200 can be uniformly adjusted.

즉, 상기 EGR 연결부(310)는 흡기포트의 외주면에 지지되는 플랜지(300)의 표면에 함몰되게 형성되는 연결홈(311), 상기 흡기관(200)과 연결홈(311) 사이의 벽면에 형성되고 흡기관(200)과 연결홈(311)을 연결하는 연결통로(312)를 포함한다.That is, the EGR connection part 310 is formed on the wall between the inlet pipe 200 and the connection groove 311, the connection groove 311 is formed recessed on the surface of the flange 300 supported on the outer peripheral surface of the intake port And a connection passage 312 connecting the intake pipe 200 and the connection groove 311.

여기서, 상기 연결홈(311)은 플랜지(300)의 표면에 최대한 넓은 면적으로 형성되며, 이를 통해 EGR 가스의 분배성을 향상시킬 수 있다.Here, the connection groove 311 is formed on the surface of the flange 300 as wide as possible, thereby improving the distribution of the EGR gas.

상기 열해방지부재(320)는 도 5에 도시된 바와 같이, 흡기관(200)의 열해를 방지하기 위한 것으로, 알루미늄을 소재로 제조되며, 상기 연결홈(311)의 바닥면에 지지되는 바닥판(321), 상기 바닥판(321)의 양측부에 수직하게 절곡 형성되고 상기 연결홈(311)의 양측 내벽에 각각 지지되는 측면판(322)을 포함한다.The thermal damage prevention member 320 is to prevent thermal damage of the intake pipe 200, as shown in Figure 5, is made of aluminum, the bottom plate is supported on the bottom surface of the connection groove 311 321, side plates 322 that are bent perpendicularly to both side portions of the bottom plate 321 and supported on both inner walls of the connection grooves 311, respectively.

그리고 상기 측면판(322)에는 연결통로(312)와 통하도록 관통홈(323)을 형성한다.In addition, the side plate 322 is formed with a through groove 323 to communicate with the connection passage 312.

여기서, 상기 열해방지부재(320)는 상기 연결홈(311) 내부에 착탈이 가능하게 구비되며, 이를 통해 고온의 EGR 가스에 의해 열해방지부재(320)가 훼손될 경우 열해방지부재(320)만 교환하면 되어 유지비용을 절감할 수 있다.Here, the thermal deterioration member 320 is detachably provided in the connection groove 311, and only when the thermal deterioration member 320 is damaged by the high temperature EGR gas, only the thermal deterioration member 320 is damaged. This can reduce maintenance costs.

이와 같은 구성을 가지는 흡기 매니폴드 구조의 사용상태를 설명하면 다음과 같다.Referring to the state of use of the intake manifold structure having such a configuration as follows.

먼저, 엔진(미도시) 작동시 발생한 배기가스는 배기 매니폴드(미도시)로 유 입되고, 상기 배기 매니폴드로 유입된 배기가스 중 일부(EGR 가스)는 EGR 파이프(미도시)로 유입되고, 상기 EGR 파이프에 유입된 EGR 가스는 EGR 밸브(미도시)의 개폐 여부에 의해 흡기 매니폴드의 EGR 가스 흡입부(100)를 통해 유입된 다음, 다수개의 흡기관(200)으로 분리된 상태로 실린더 헤드의 각 흡기포트에 공급된다.First, exhaust gas generated when an engine (not shown) is operated is introduced into an exhaust manifold (not shown), and a part of the exhaust gas (EGR gas) introduced into the exhaust manifold is introduced into an EGR pipe (not shown). The EGR gas introduced into the EGR pipe is introduced through the EGR gas intake unit 100 of the intake manifold by opening or closing an EGR valve (not shown), and then separated into a plurality of intake pipes 200. It is supplied to each intake port of the cylinder head.

이때, 흡기관(200)의 배기공(210)을 통과하는 EGR 가스 중 일부는 EGR 연결부(310)의 연결통로(312)를 통해 연결홈(311)으로 유입된 다음, 배기압이 낮은 흡기관(200)과 연결되는 연결통로(312)를 통해 흡기포트에 공급되며, 이를 통해 실린더 헤드의 각 흡기포트에 유입되는 EGR 가스의 분배성을 향상시키게 된다.At this time, some of the EGR gas passing through the exhaust hole 210 of the intake pipe 200 is introduced into the connecting groove 311 through the connecting passage 312 of the EGR connecting portion 310, and then the intake pipe having a low exhaust pressure It is supplied to the intake port through the connection passage 312 connected to the 200, thereby improving the distribution of the EGR gas flowing into each intake port of the cylinder head.

여기서, 상기 EGR 연결부(310)의 내부에 열해방지부재(320)가 구비됨으로써 고온의 EGR 가스에 의해 EGR 연결부(310)가 훼손되는 것을 방지할 수 있고, 그에 따라 흡기 매니폴드의 열해를 방지할 수 있다.Here, the thermal degradation prevention member 320 is provided inside the EGR connection portion 310 to prevent the EGR connection portion 310 from being damaged by the high temperature EGR gas, thereby preventing thermal degradation of the intake manifold. Can be.

도 1은 종래의 EGR 시스템을 나타낸 도면.1 is a view showing a conventional EGR system.

도 2는 종래의 EGR 어댑터가 구비된 흡기 매니폴드 구조를 나타낸 도면.2 is a view showing an intake manifold structure equipped with a conventional EGR adapter.

도 3은 본 발명의 흡기 매니폴드 구조를 나타낸 사시도.Figure 3 is a perspective view showing the intake manifold structure of the present invention.

도 4는 본 발명의 흡기 매니폴드 구조의 플랜지를 나타낸 정면도.4 is a front view showing a flange of the intake manifold structure of the present invention.

도 5는 본 발명의 흡기 매니폴드 구조의 부분 확대도.5 is a partially enlarged view of the intake manifold structure of the present invention.

* 도면의 주요 부분에 대한 부호의 설명 * Explanation of symbols on the main parts of the drawings

100 : EGR 가스 흡입부 200 : 흡기관100: EGR gas inlet 200: intake pipe

300 : 플랜지 310 : EGR 연결부300: flange 310: EGR connection

311 : 연결홈 312 : 연결통로311: connecting groove 312: connecting passage

320 : 열해방지부재 321 : 바닥판320: heat protection member 321: bottom plate

322 : 측면판 323 : 관통홈322: side plate 323: through groove

Claims (6)

흡기 매니폴드의 플랜지에 구비되고, 각 흡기관을 연결하는 EGR 연결부를 포함하는 것을 특징으로 하는 흡기 매니폴드 구조.An intake manifold structure, comprising: an EGR connecting portion provided at a flange of the intake manifold to connect each intake pipe. 청구항 1에 있어서,The method according to claim 1, 상기 EGR 연결부는 상기 플랜지의 표면에 형성되는 연결홈과, 상기 흡기관과 연결홈을 연결하는 연결통로를 포함하는 것을 특징으로 하는 흡기 매니폴드 구조.The EGR connecting portion includes a connecting groove formed on the surface of the flange and a connecting passage connecting the intake pipe and the connecting groove. 청구항 1에 있어서,The method according to claim 1, 상기 EGR 연결부에는 흡기 매니폴드의 열해를 방지하기 위한 열해방지부재를 구비하는 것을 특징으로 하는 흡기 매니폴드 구조.The intake manifold structure, characterized in that the EGR connection portion is provided with a thermal degradation prevention member for preventing thermal degradation of the intake manifold. 청구항 3에 있어서,The method according to claim 3, 상기 열해방지부재는 EGR 연결부의 바닥면에 지지되는 바닥판과, 상기 EGR 연결부의 내벽에 지지되는 측면판을 포함하며, The thermal degradation prevention member includes a bottom plate supported on the bottom surface of the EGR connection portion, and a side plate supported on the inner wall of the EGR connection portion, 상기 측면판에는 연결통로와 통하도록 관통홈을 형성하는 것을 특징으로 하는 흡기 매니폴드 구조.Intake manifold structure, characterized in that the side plate to form a through groove to communicate with the connecting passage. 청구항 4에 있어서,The method according to claim 4, 상기 열해방지부재는 EGR 연결부에 착탈이 가능하게 구비되는 것을 특징으로 하는 흡기 매니폴드 구조.The thermal deterioration member is an intake manifold structure, characterized in that detachable to the EGR connection portion. 청구항 1 또는 청구항 3에 있어서,The method according to claim 1 or 3, 상기 흡기매니폴드는 합성수지로 제조되며, The intake manifold is made of synthetic resin, 상기 열해방지부재는 알루미늄으로 제조되는 것을 특징으로 하는 흡기 매니폴드 구조.Intake manifold structure, characterized in that the thermal degradation prevention member is made of aluminum.
KR1020080072771A 2008-07-25 2008-07-25 Intake manifold structure KR101393941B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949343A (en) * 2010-09-10 2011-01-19 奇瑞汽车股份有限公司 Air inlet branch pipe and manufacture method thereof
JP2018105180A (en) * 2016-12-26 2018-07-05 愛三工業株式会社 Intake manifold
CN111140413A (en) * 2018-11-02 2020-05-12 现代自动车株式会社 Access system for a vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100204303B1 (en) * 1997-04-29 1999-06-15 류정열 The egr structure of the intake manifold
JP4124059B2 (en) 2003-08-21 2008-07-23 マツダ株式会社 Engine exhaust gas recirculation system
KR200423967Y1 (en) 2006-04-12 2006-08-14 말레동현필터시스템 주식회사 Inhalation manifold with heat-protector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949343A (en) * 2010-09-10 2011-01-19 奇瑞汽车股份有限公司 Air inlet branch pipe and manufacture method thereof
JP2018105180A (en) * 2016-12-26 2018-07-05 愛三工業株式会社 Intake manifold
CN111140413A (en) * 2018-11-02 2020-05-12 现代自动车株式会社 Access system for a vehicle

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