KR20070023045A - Structure for connecting intake manifold to exhaust gas recirculation pipe - Google Patents

Structure for connecting intake manifold to exhaust gas recirculation pipe Download PDF

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Publication number
KR20070023045A
KR20070023045A KR1020050077226A KR20050077226A KR20070023045A KR 20070023045 A KR20070023045 A KR 20070023045A KR 1020050077226 A KR1020050077226 A KR 1020050077226A KR 20050077226 A KR20050077226 A KR 20050077226A KR 20070023045 A KR20070023045 A KR 20070023045A
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South Korea
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exhaust gas
gas recirculation
intake manifold
pipe
recirculation pipe
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KR1020050077226A
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Korean (ko)
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KR100705050B1 (en
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이승연
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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
    • 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
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
    • 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
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

본 발명은 흡기매니폴더와 배기가스재순환 파이프의 연결구조에 관한 것으로, 배기가스재순환 파이프를 통해 흡기매니폴더로 재유입되는 배기가스에 동반된 열을 외부와의 열교환을 통해 적절히 저감시켜 줌으로써, 흡기매니폴더를 플라스틱 소재로 제작할 수 있도록 하여 차량의 경량화 및 원가절감 등을 도모하기 위해, 흡기매니폴더에 연결포트가 형성되고, 이 연결포트에 배기가스재순환 파이프가 끼워져 연결되며, 상기 흡기매니폴더에 유입되는 외기 중의 일부를 상기 연결부를 통해 배기가스재순환 파이프로 유동시켜 배기가스재순환 파이프와 열교환되도록 한 다음에 흡기매니폴더로 재유입시키는 외기순환수단을 갖추고 있다.The present invention relates to a connection structure between an intake manifold and an exhaust gas recirculation pipe. The intake air is properly reduced by heat exchange with the outside, which is accompanied by exhaust gas re-introduced into the intake manifold through the exhaust gas recirculation pipe. In order to make the manifold made of plastic material to reduce the weight and cost of the vehicle, a connection port is formed in the intake manifold, and an exhaust gas recirculation pipe is inserted into the connection port, and connected to the intake manifold. Some of the incoming outside air flows through the connection portion to the exhaust gas recirculation pipe to be heat exchanged with the exhaust gas recirculation pipe, and is then provided with an external air circulation means for reflowing into the intake manifold.

Description

흡기매니폴더와 배기가스재순환 파이프 연결구조{Structure for connecting intake manifold to exhaust gas recirculation pipe}Structure for connecting intake manifold to exhaust gas recirculation pipe

도 1은 본 발명에 따라 흡기매니폴더에 배기가스재순환 파이프가 연결된 상태의 사시도,1 is a perspective view of an exhaust gas recirculation pipe connected to an intake manifold according to the present invention;

도 2는 도 1의 요부 단면도,2 is a sectional view of the main part of FIG. 1;

도 3은 본 발명에 따른 배기가스재순환 파이프를 흡기매니폴더에 연결하기 위한 인서트 파이프의 사시도,3 is a perspective view of an insert pipe for connecting an exhaust gas recirculation pipe according to the present invention to an intake manifold;

도 4는 본 발명에 따른 배기가스재순환 파이프의 사시도이다.4 is a perspective view of an exhaust gas recirculation pipe according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1-흡기매니폴더 2-포트1-Intake Manifold 2-Port

3-배기가스재순환 파이프 4-인서트 파이프3- exhaust gas recirculation pipe 4-insert pipe

5-장착 6a-유입통로5-mount 6a-inflow passage

6b-반전통로6b-reverse passage

본 발명은 흡기매니폴더에 배기가스재순환 파이프를 연결시키는 연결구조에 관한 것으로, 특히 흡기매니폴더에 연결되는 배기가스재순환 파이프를 외부의 유입공기로 냉각시켜 배기가스재순환 파이프로부터 흡기매니폴더로의 열전달을 감소시켜 흡기매니폴더를 플라스틱 소재로 제작할 수 있도록 한 흡기배니폴더와 배기가스재순환 파이프의 연결구조에 관한 것이다.The present invention relates to a connection structure for connecting the exhaust gas recirculation pipe to the intake manifold, and in particular, the exhaust gas recirculation pipe connected to the intake manifold is cooled by external inlet air to transfer heat from the exhaust gas recirculation pipe to the intake manifold. The present invention relates to a connection structure between an intake manifold and an exhaust gas recirculation pipe to reduce the flow rate of the intake manifold to a plastic material.

일반적으로 디젤엔진을 사용하는 차량에는 배기가스 중의 질소산화물을 저감시키는 수단으로서 배기가스의 일부를 흡기계통으로 재순환시키는 배기가스재순환장치가 사용되고 있는 데, 배기가스를 흡기계통으로 재순환시키기 위해서는 배기가스재순환 파이프를 흡기매니폴더에 연결해야 한다.In general, a vehicle using a diesel engine uses an exhaust gas recirculation device for recycling a part of the exhaust gas into the intake cylinder as a means of reducing nitrogen oxides in the exhaust gas. In order to recycle the exhaust gas into the intake cylinder, the exhaust gas recirculation is performed. The pipe must be connected to the intake manifold.

흡기매니폴더는 제작성이 용이하고 경량화를 도모할 목적으로 플라스틱 소재를 많이 사용하여 제작되고 있지만, 배기가스는 고온의 열을 수반하고 있기 때문에 플라스틱 소재로 만들어진 흡기매니폴더가 배기가스에 의해 열해를 입을 우려가 있고, 이 때문에 흡기매니폴더로 배기가스가 재유입되는 포트를 알루미늄 등으로 제작하고 있다.Intake manifolds are manufactured using a lot of plastic materials for the purpose of easy manufacturing and weight reduction.However, intake manifolds made of plastics do not suffer from heat damage due to the high temperature heat. There is a risk of wearing them, and therefore, a port through which exhaust gas is reflowed into the intake manifold is made of aluminum or the like.

따라서, 흡기매니폴더로 재유입되는 배기가스의 열을 적절히 저감시켜 줄 필요가 있었다.Therefore, it was necessary to appropriately reduce the heat of the exhaust gas flowing back into the intake manifold.

이에 본 발명은 상기와 같은 사정을 감안하여 안출된 것으로, 배기가스재순환 파이프를 통해 흡기매니폴더로 재유입되는 배기가스에 동반된 열을 외부와의 열교환을 통해 적절히 저감시켜 줌으로써, 흡기매니폴더를 플라스틱 소재로 제작할 수 있도록 하여 차량의 경량화 및 원가절감 등을 도모할 수 있도록 된 흡기매니폴 더와 배기가스재순환 파이프의 연결구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and by reducing the heat accompanying the exhaust gas re-introduced into the intake manifold through the exhaust gas recirculation pipe through heat exchange with the outside, the intake manifold is reduced. The purpose of the present invention is to provide a connection structure between the intake manifold and the exhaust gas recirculation pipe, which can be made of plastic material, so that the weight and cost of the vehicle can be reduced.

상기와 같은 목적을 달성하기 위한 본 발명은, 흡기매니폴더에 연결포트가 형성되고, 이 연결포트에 배기가스재순환 파이프가 끼워져 연결되며, 상기 흡기매니폴더에 유입되는 외기 중의 일부를 상기 연결부를 통해 배기가스재순환 파이프로 유동시켜 배기가스재순환 파이프와 열교환되도록 한 다음에 흡기매니폴더로 재유입시키는 외기순환수단을 갖추고 있다.The present invention for achieving the above object, the connection port is formed in the intake manifold, the exhaust gas recirculation pipe is inserted into the connection port is connected, a portion of the outside air flowing into the intake manifold through the connection portion. An external air circulation means for flowing through the exhaust gas recirculation pipe to exchange heat with the exhaust gas recirculation pipe and then re-introduced into the intake manifold is provided.

바람직하기로는, 상기 외기순환수단이 상기 포트의 내경보다 작은 외경을 갖고 상기 배기가스재순환 파이프의 외경보다 큰 내경을 갖고서 상기 포트의 내주벽과 상기 배기가스재순환 파이프의 외주벽 사이에 끼워져 상기 포트의 내주벽과의 사이로 흡기매니폴더로 유입된 외기 중의 일부가 유입되도록 통로를 형성함과 더불어 상기 배기가스재순환 파이프의 외주벽과의 사이에 상기 유입된 외기를 흡기매니폴더로 재유입시키는 반전통로를 형성하는 인서트 파이프와, 이 인서트 파이프의 외경 보다 큰 내경을 갖고서 상기 배기가스재순환 파이프에 끼워져 상기 포트에 장착됨과 더불어 상기 유입통로와 반전통로 사이의 반전 바닥면을 형성하는 장착파이프를 구비한 것을 특징으로 한다.Preferably, the outside air circulation means has an outer diameter smaller than the inner diameter of the port and has an inner diameter larger than the outer diameter of the exhaust gas recirculation pipe so as to be interposed between the inner circumferential wall of the port and the outer circumferential wall of the exhaust gas recirculation pipe. A reverse passage for forming a passage so that a part of the outside air introduced into the intake manifold with the inner circumferential wall and reflowing the introduced outside air into the intake manifold with the outer circumferential wall of the exhaust gas recirculation pipe An insert pipe to be formed, and a mounting pipe having an inner diameter larger than the outer diameter of the insert pipe and fitted to the exhaust gas recirculation pipe to be mounted to the port, and forming an inverted bottom surface between the inflow passage and the inversion passage. It is done.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1에는 본 발명에 따라 흡기매니폴더에 배기가스재순환 파이프가 연결된 상태가 도시되어 있는 바, 흡기매니폴더(1)의 소정 외주면에 배기가스재순환 파이프용 포트(2)가 형성되고, 이 포트(2)를 통해 배기가스재순환 파이프(3)가 삽입되 어 일체로 연결되어 있다.1 shows a state in which an exhaust gas recirculation pipe is connected to an intake manifold according to the present invention, and a port 2 for exhaust gas recirculation pipe is formed on a predetermined outer circumferential surface of the intake manifold 1. Through 2) the exhaust gas recirculation pipe (3) is inserted and connected integrally.

도 2에는 도 1의 요부가 단면으로 도시되어 있고, 도 3에는 본 발명에 따른 배기가스재순환 파이프를 흡기매니폴더에 연결하기 위한 인서트 파이프가 도시되어 있으며, 도 4에는 본 발명에 따른 배기가스재순환 파이프가 도시되어 있는 바, 즉 상기 포트(2)에 삽입되어 포트(2)의 내주벽의 사이에 소정 통로가 형성될 수 있도록 포트(2)의 외경보다 작은 외경을 갖도록 만들어진 인서트 파이프(4)는 마름모 형상을 하고서 중앙부위에 인서트 파이프(4)의 외경보다 큰 구멍이 형성되어 있는 장착플랜지(4a)에 끼워져서 장착플랜지(4a)와 일체로 연결되어 있다.2 shows the main part of FIG. 1 in cross section, FIG. 3 shows an insert pipe for connecting the exhaust gas recirculation pipe according to the invention to an intake manifold, and FIG. 4 shows the exhaust gas recirculation according to the invention. The pipe is shown, i.e. an insert pipe 4 made to have an outer diameter smaller than the outer diameter of the port 2 so that a predetermined passage can be formed between the inner circumferential wall of the port 2 and inserted into the port 2. Is fitted to the mounting flange 4a having a rhombus shape and having a hole larger than the outer diameter of the insert pipe 4 in the center portion thereof, and is integrally connected to the mounting flange 4a.

상기 인서트 파이프(4)가 장착플랜지(4a)의 구멍에 끼워진 상태에서 4개소에서 예컨대 용접 등의 방법으로 일체로 연결되어, 이 연결부위를 제외하고는 인서트 파이프(4)의 외주면과 장착플랜지(4a)사이에 상기 통로와 연통될 수 있는 통로가 형성되게 된다.In the state where the insert pipe 4 is fitted into the hole of the mounting flange 4a, it is integrally connected at four places by, for example, welding, and the outer peripheral surface of the insert pipe 4 and the mounting flange (except for this connection portion). Between 4a), a passage that can communicate with the passage is formed.

상기 장착플랜지(4a)에는 흡기매니폴더(1)에 예컨대 볼트로 체결될 수 있도록 볼트구멍이 구비되어 있지만, 상기 장착플랜지(4a)의 마름모꼴 형상이나 볼트체결은 일례이고 다른 형상으로 만들어지거나 다른 체결수단으로 체결될 수 있다.The mounting flange 4a is provided with a bolt hole to be fastened to the intake manifold 1, for example, by a bolt, but the lozenge shape or the bolt fastening of the mounting flange 4a is one example and is made of a different shape or other fastening. It can be fastened by means.

상기 인서트 파이프(4)에 삽입되어 인서트 파이프(4)의 내주벽과의 사이에 소정 통로가 형성될 수 있도록 인서트 파이프(4)의 내경보다 상대적으로 작은 외경을 갖도록 만들어진 배기가스재순환 파이프(3)는 장착파이프(5)에 끼워져 일체로 연결되는 데, 상기 장착파이프(5)는 그 하단부의 내경이 배기가스재순환 파이프(3)의 외경과 거의 동일하게 형성되어 일체로 용접되는 반면에 상부는 배기가스재순환 파이프(3)의 외주벽과의 사이에 통로가 형성되로록 배기가스재순환 파이프(3)의 외경보다 크게 형성되며, 상기 통로사이에 상기 인서트 파이프(4)가 삽입되어 상기 통로를 유입통로(6a)와 반전통로(6b)로 구획짓게 된다.The exhaust gas recirculation pipe (3) inserted into the insert pipe (4) is made to have an outer diameter relatively smaller than the inner diameter of the insert pipe (4) so that a predetermined passage can be formed between the inner circumferential wall of the insert pipe (4) Is fitted to the mounting pipe 5 and is integrally connected. The mounting pipe 5 is welded integrally while the inner diameter of the lower end thereof is formed almost the same as the outer diameter of the exhaust gas recirculation pipe 3 while the upper part is exhausted. A passage is formed between the outer circumferential wall of the gas recirculation pipe 3 so as to be larger than the outer diameter of the exhaust gas recirculation pipe 3, and the insert pipe 4 is inserted between the passages so that the passage enters the inflow passage. It is divided into 6a and inverted passage 6b.

상기 장착파이프(5)의 중앙부위는 경사면을 형성하여 상기 하단부와 상기 상부를 연결시켜주게 되고, 상기 경사면은 유입통로(6a)로 유입된 외기가 반전통로(6b)를 따라 유동할 수 있도록 반전 바닥면(5a)을 형성하게 된다.A central portion of the mounting pipe 5 forms an inclined surface to connect the lower portion and the upper portion, and the inclined surface is inverted so that outside air introduced into the inflow passage 6a can flow along the inversion passage 6b. The bottom surface 5a is formed.

상기 장착파이프(5)의 상단에는 2개의 볼트구멍을 가진 플랜지(5b)가 형성되어, 상기 인서트 파이프(4)의 플랜지와 함께 흡기매니폴드(1)에 볼트로 체결되어 연결된다.A flange 5b having two bolt holes is formed at the upper end of the mounting pipe 5, and is bolted to the intake manifold 1 together with the flange of the insert pipe 4.

이에 따라, 도 2에 도시된 바와 같이 배기가스재순환 파이프(3)가 장착파이프(5)와 인서트 파이프(4)를 매개로 흡기매니폴더(1)에 체결되면, 흡기매니폴더(1)를 통해 유입된 저온의 외기 중의 일부가 포트(2)를 통해 유입통로(6a)를 거쳐서 바닥면(5a)에서 반전된 다음에 다시 반전통로(6b)를 거쳐서 흡기매니폴더(1)로 재유입되는 바, 이러한 외기의 순환과정에 배기가스재순환 파이프(3)와 열교환을 하여 배기가스재순환 파이프(3)를 냉각시켜 주므로, 배기가스재순환 파이프(3)로부터 흡기매니폴더(1)로의 직접적인 열전달이 적어지게 되어, 흡기매니폴더를 플라스틱 소재로 제작해도 열해로 인해 손상될 염려가 없게 된다.Accordingly, when the exhaust gas recirculation pipe (3) is fastened to the intake manifold (1) via the mounting pipe (5) and the insert pipe (4), as shown in Figure 2, through the intake manifold (1) Some of the low temperature outdoor air introduced through the port 2 is inverted at the bottom surface 5a via the inflow passage 6a and then reintroduced into the intake manifold 1 via the inversion passage 6b. In order to cool the exhaust gas recirculation pipe 3 by exchanging heat with the exhaust gas recirculation pipe 3 during the circulation of the outside air, direct heat transfer from the exhaust gas recirculation pipe 3 to the intake manifold 1 is reduced. Therefore, even if the intake manifold is made of a plastic material, there is no fear of damage due to thermal damage.

이상 설명한 바와 같이 본 발명에 따른 흡기매니폴더와 배기가스재순환 파이프의 연결구조에 의하면, 고온의 배기가스를 유통시키는 배기가스재순환 파이프를 외기와의 열교환을 통해 적절히 냉각시켜 흡기매니폴더와 연결하게 되므로, 흡기매니폴더를 플라스틱 소재로 제작하더라도 배기가스재순환 피이프로부터의 과도한 열전달로 인해 열해를 입어서 손상될 염려가 없고, 흡기매니폴더를 플라스틱 소재로 제작할 수 있음에 따라 차량의 경량화와 원가절감을 도모할 수 있는 등의 효과가 있게 된다.As described above, according to the connection structure between the intake manifold and the exhaust gas recirculation pipe according to the present invention, the exhaust gas recirculation pipe for distributing the hot exhaust gas is properly cooled through heat exchange with the outside air, thereby connecting to the intake manifold. Even if the intake manifold is made of plastic, there is no fear of damage due to excessive heat transfer from the exhaust gas recirculation pipe, and the intake manifold can be made of plastic to reduce the weight and cost of the vehicle. You can do it.

Claims (4)

흡기매니폴더에 연결포트가 형성되고, 이 연결포트에 배기가스재순환 파이프가 끼워져 연결되며, 상기 흡기매니폴더에 유입되는 외기 중의 일부를 상기 연결부를 통해 배기가스재순환 파이프로 유동시켜 배기가스재순환 파이프와 열교환되도록 한 다음에 흡기매니폴더로 재유입시키는 외기순환수단을 갖춘 흡기매니폴더와 배기가스재순환 파이프 연결구조.A connection port is formed in the intake manifold, and an exhaust gas recirculation pipe is inserted into and connected to the connection port, and a part of the outside air flowing into the intake manifold flows through the connection portion to the exhaust gas recirculation pipe and is connected to the exhaust gas recirculation pipe. An intake manifold and exhaust gas recirculation pipe connection structure having an outside air circulation means for allowing heat exchange and then reflowing into the intake manifold. 제 1항에 있어서, 상기 외기순환수단이 상기 포트의 내경보다 작은 외경을 갖고 상기 배기가스재순환 파이프의 외경보다 큰 내경을 갖고서 상기 포트의 내주벽과 상기 배기가스재순환 파이프의 외주벽 사이에 끼워져 상기 포트의 내주벽과의 사이로 흡기매니폴더로 유입된 외기 중의 일부가 유입되도록 통로를 형성함과 더불어 상기 배기가스재순환 파이프의 외주벽과의 사이에 상기 유입된 외기를 흡기매니폴더로 재유입시키는 반전통로를 형성하는 인서트 파이프와, 이 인서트 파이프의 외경 보다 큰 내경을 갖고서 상기 배기가스재순환 파이프에 끼워져 상기 포트에 장착됨과 더불어 상기 유입통로와 반전통로 사이의 반전 바닥면을 형성하는 장착파이프를 구비한 것을 특징으로 하는 흡기매니폴더와 배기가스재순환 파이프의 연결구조.According to claim 1, wherein the outside air circulation means has an outer diameter smaller than the inner diameter of the port and having an inner diameter larger than the outer diameter of the exhaust gas recirculation pipe is sandwiched between the inner circumferential wall of the port and the outer circumferential wall of the exhaust gas recirculation pipe Inverting the inlet air into the intake manifold while forming a passageway so that a part of the outside air introduced into the intake manifold is introduced between the inner circumferential wall of the port and the outer circumferential wall of the exhaust gas recirculation pipe. An insert pipe forming a passage and a mounting pipe having an inner diameter larger than the outer diameter of the insert pipe and fitted to the exhaust gas recirculation pipe and mounted to the port and forming a reverse bottom surface between the inflow passage and the inversion passage. A connection structure between the intake manifold and the exhaust gas recirculation pipe, characterized in that. 제 2항에 있어서, 상기 인서트 파이프의 외경보다 큰 직경과 볼트구멍을 가 진 장착플랜지에 상기 인서트 파이프가 끼워져서 연결되고, 이 연결부위를 제외한 인서트 파이프의 외주면과 장착플랜지의 내주벽 사이에 외기통로가 형성된 것을 특징으로 하는 흡기매니폴더와 배기가스재순환 파이프의 연결구조.According to claim 2, wherein the insert pipe is connected to the mounting flange having a diameter and a bolt hole larger than the outer diameter of the insert pipe, the outside air between the outer peripheral surface of the insert pipe and the inner peripheral wall of the mounting flange except this connection portion A connection structure of an intake manifold and an exhaust gas recirculation pipe, characterized in that a passage is formed. 제 3항에 있어서, 상기 장착파이프의 하단부는 상기 배기가스재순환 파이프에 끼워져서 용접으로 부착되고, 상기 장착파이프의 상단부에는 볼트구멍을 가진 플랜지가 형성되며, 상기 하단부와 상기 상단부에 상기 반전 바닥면이 경사지게 형성된 것을 특징으로 하는 흡기매니폴더와 배기가스재순환 파이프의 연결구조.According to claim 3, wherein the lower end of the mounting pipe is attached to the exhaust gas recirculation pipe by welding, the upper end of the mounting pipe is formed with a flange having a bolt hole, the lower end and the upper end of the reverse bottom surface A connecting structure of the intake manifold and the exhaust gas recirculation pipe, characterized in that formed inclined.
KR1020050077226A 2005-08-23 2005-08-23 Structure for connecting intake manifold to exhaust gas recirculation pipe KR100705050B1 (en)

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US7921256B2 (en) 2007-03-08 2011-04-05 Samsung Electronics Co., Ltd. Memory module and memory module system

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Publication number Priority date Publication date Assignee Title
US7921256B2 (en) 2007-03-08 2011-04-05 Samsung Electronics Co., Ltd. Memory module and memory module system

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