KR19990032826U - Exhaust gas flow improving device of exhaust manifold - Google Patents

Exhaust gas flow improving device of exhaust manifold Download PDF

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Publication number
KR19990032826U
KR19990032826U KR2019970045592U KR19970045592U KR19990032826U KR 19990032826 U KR19990032826 U KR 19990032826U KR 2019970045592 U KR2019970045592 U KR 2019970045592U KR 19970045592 U KR19970045592 U KR 19970045592U KR 19990032826 U KR19990032826 U KR 19990032826U
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South Korea
Prior art keywords
exhaust gas
exhaust
mixing
vibration
heat transfer
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KR2019970045592U
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Korean (ko)
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KR200243971Y1 (en
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김한상
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정몽규
현대자동차 주식회사
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Priority to KR2019970045592U priority Critical patent/KR200243971Y1/en
Publication of KR19990032826U publication Critical patent/KR19990032826U/en
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Publication of KR200243971Y1 publication Critical patent/KR200243971Y1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/14—Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

본 고안은 자동차의 배기유동에 관한 것으로서, 특히, 믹싱배기파이프(30)의 외측면에 설치되고, 제어부(60)의 제어를 받아 이동하는 배기가스에 진동을 발생하여 와류를 억제시키는 진동발생부(40)와; 상기 진동발생부(40)와 제어부(60)를 연결하여 전원을 공급하는 진동배선(42)과; 상기 믹싱파이프(30)의 외주면에 설치되고, 제어부(60)의 제어를 받아서 공회전 워밍업시의 배기가스에 열을 가하여 온도를 높여주는 전열부(50)와; 상기 전열부(50)와 제어부(60) 사이에 연결되어 전원을 공급하는 전열배선(52)으로 구성된 배기매니폴드의 배기가스 유동개선장치인 바, 배기가스가 믹싱배기파이프로 지날 때 배기가스에서 와류가 발생되는 것을 방지하므로 배기가스의 유동을 균일화하고, 배기가스의 정화 효율을 향상시키도록 하는 매우 유용하고 효과적인 고안이다.The present invention relates to the exhaust flow of a vehicle, in particular, a vibration generating unit which is installed on the outer surface of the mixing exhaust pipe 30, generates a vibration in the exhaust gas moving under the control of the control unit 60 to suppress the vortex 40; Vibration wiring 42 for supplying power by connecting the vibration generating unit 40 and the control unit 60; A heat transfer part 50 installed on an outer circumferential surface of the mixing pipe 30 to increase the temperature by applying heat to the exhaust gas during idling warm-up under the control of the controller 60; The exhaust gas flow improving device of the exhaust manifold, which is connected between the heat transfer part 50 and the control part 60 and supplies power, is provided in the exhaust gas when the exhaust gas passes through the mixing exhaust pipe. It is a very useful and effective design to make the flow of the exhaust gas uniform, and to improve the purification efficiency of the exhaust gas since the vortex is prevented from occurring.

Description

배기매니폴드의 배기가스 유동개선장치Exhaust gas flow improving device of exhaust manifold

본 고안은 자동차의 배기의 배출에 관한 것으로, 특히, 믹싱배기파이프의 외측면에 진동을 발생시키는 진동발생부와 열을 발생시키는 전열부를 설치하여 배기매니폴드로 배출되는 배기가스가 믹싱배기파이프로 지날 때 배기가스에서 와류가 발생되는 것을 방지하므로 배기가스의 유동을 균일화하고, 배기가스의 정화 효율을 향상시키도록 하는 배기매니폴드의 배기가스 유동개선장치에 관한 것이다.The present invention relates to exhaust of the exhaust of a vehicle, and in particular, by installing a vibration generating portion for generating vibration and a heat transfer portion for generating heat on the outer surface of the mixing exhaust pipe is the exhaust gas discharged to the exhaust manifold as a mixing exhaust pipe The present invention relates to an exhaust gas flow improving apparatus of an exhaust manifold that prevents the generation of vortices in the exhaust gas so as to uniformize the flow of the exhaust gas and improve the purification efficiency of the exhaust gas.

일반적으로, 자동차 엔진에서 배출되는 배기가스는 배기매니폴드를 거쳐서 배기를 이동시켜주는 배기파이프를 거쳐 담체라고 하는 촉매가 내장된 부분에서 인체에 유해하고 대기를 오염시키는 물질이 제거되어진 상태로 소음기를 거쳐 외부로 배출되는 것이다.In general, the exhaust gas emitted from an automobile engine passes through an exhaust manifold and passes through an exhaust pipe, where a catalyst containing a catalyst, called a carrier, is contained therein to remove harmful substances and pollutants. After being discharged to the outside.

이와 같이, 담체에 내장된 촉매는 배기매니폴드를 거쳐 외부로 배출되는 배기가스가 이동하기만 하면 배기가스와 촉매변환을 일으키게 되어 배기가스를 정화시키게 되는 것으로서, 이동되는 배기가스의 이동 상태에 따라서 촉매의 가스 정화 효율이 좌,우되어지게 된다.In this way, the catalyst embedded in the carrier causes the catalytic conversion with the exhaust gas as long as the exhaust gas discharged to the outside through the exhaust manifold is moved, thereby purifying the exhaust gas. The gas purification efficiency of the catalyst becomes left and right.

도 1으 일반적인 배기가스가 배기매니폴드를 지나 담체에서 촉매변환되는 상태를 개략적으로 보이는 도면으로서, 엔진(1)의 실린더에서 폭발되면서 발생되는 배기가스는 4기통 엔진의 경우에는 4개의 배기매니폴드(2)에서 순차적으로 배출되어지며, 도 1은 특히, 가장 마지막에 있는 배기매니폴드(2)를 통하여 배기가스가 배출되는 상태를 보이고 있다.FIG. 1 is a view schematically showing a state in which a general exhaust gas is catalytically converted in a carrier through an exhaust manifold, and exhaust gas generated by explosion in a cylinder of the engine 1 includes four exhaust manifolds in a four-cylinder engine. It is sequentially discharged from (2), Figure 1 shows, in particular, the exhaust gas is discharged through the exhaust manifold (2) at the end.

이와 같이, 배기매니폴드(2)의 가장 마지막 파이프를 통하여 믹싱배기파이프(3)로 배가가스가 유입되어지게 되면, 배기경로(4)로 표시된 부분에서와 같이, 배기가스가 일정하고 균일하게 이동하지 못하고, 배기파이프(3)의 측벽부분에 부딪치면서 와류를 발생시켜 반대부분으로 와류되어지거나 일부는 담체(5)의 전면부분에 부딪치면서 와류를 발생하여 반대로 복귀하게 되어지게 되고, 최종적으로는 담체(5)내의 촉매를 거쳐 외부로 배출되는 것이다.As such, when the exhaust gas flows into the mixing exhaust pipe 3 through the last pipe of the exhaust manifold 2, the exhaust gas moves uniformly and uniformly as in the portion indicated by the exhaust path 4. If it does not, the vortex is generated by hitting the side wall portion of the exhaust pipe (3) to vortex to the opposite portion, or the part hits the front portion of the carrier (5) to generate the vortex and return to the contrary, and finally It is discharged to the outside via the catalyst in the carrier (5).

그런데, 상기한 바와 같이, 믹싱배기파이프로 유입된 배기가스는 유동방향이 좌,우로 바뀌면서 내벽면에 배기가스의 재순환영역이 불가피하게 발생되므로 인하여 담체로 향하는 배기가스의 유동이 균일화 되지 못하고 배기가스의 정화 효율이 저하되어서 환경오염을 발생시키는 한 원인이 되었다.However, as described above, the exhaust gas introduced into the mixing exhaust pipe is inevitably generated in the inner wall surface as the flow direction is changed to the left and right, so the flow of the exhaust gas toward the carrier is not uniform and the exhaust gas is not uniform. The purification efficiency of the gas was lowered, causing environmental pollution.

본 고안은 이러한 점을 감안하여 안출한 것으로서, 믹싱배기파이프의 외측면에 진동을 발생시키는 진동발생부와 열을 발생시키는 전열부를 설치하여 배기매니폴드로 배출되는 배기가스가 믹싱배기파이프로 지날 때 배기가스에서 와류가 발생되는 것을 방지하므로 배기가스의 유동을 균일화하고, 배기가스의 정화 효율을 향상시키도록 하는 것이 목적이다.The present invention has been devised in view of this point, and when the exhaust gas discharged to the exhaust manifold passes through the mixing manifold by installing a vibration generating part for generating vibration and a heat transfer part for generating heat on the outer surface of the mixing exhaust pipe. Since the vortex is prevented from occurring in the exhaust gas, it is an object to uniformize the flow of the exhaust gas and to improve the purification efficiency of the exhaust gas.

도 1은 종래의 일반적인 배기매니폴드에서 배기가스가 배출되는 상태를 개략적으로 도시한 도면.1 is a view schematically showing a state in which exhaust gas is discharged from a conventional general exhaust manifold.

도 2는 본 고안에 따른 배기매니폴드의 배기가스 유동개선장치의 단면을 보인 도면.Figure 2 is a view showing a cross section of the exhaust gas flow improving device of the exhaust manifold according to the present invention.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

10 : 엔진 20 : 배기매니폴드10 engine 20 exhaust manifold

30 : 믹싱배기파이프 40 : 진동발생부30: mixing exhaust pipe 40: vibration generating unit

42 : 진동배선 50 : 전열부42: vibration wiring 50: heat transfer unit

52 : 전열배선 60 : 제어부52: heat transfer wiring 60: control unit

70 : 담체70 carrier

이러한 목적은 배기매니폴드를 통하여 믹싱배기파이프로 이동하는 배기가스를 담체내의 촉매로 정화시키는 장치에서, 상기 믹싱배기파이프의 외측면에 설치되고, 제어부의 제어를 받아 이동하는 배기가스에 진동을 발생하여 와류를 억제시키는 진동발생부와; 상기 진동발생부와 제어부를 연결하여 전원을 공급하는 진동배선과; 상기 믹싱파이프의 외주면에 설치되고, 제어부의 제어를 받아서 공회전 워밍업시의 배기가스에 열을 가하여 온도를 높여주는 전열부와; 상기 전열부와 제어부 사이에 연결되어 전원을 공급하는 전열배선으로 구성된 배기매니폴드의 배기가스 유동개선장치를 제공함으로써 달성된다.The purpose of this is to provide an apparatus for purifying exhaust gas moving through the exhaust manifold to the mixing exhaust pipe with a catalyst in the carrier, which is installed on the outer surface of the mixing exhaust pipe and generates vibration in the exhaust gas moving under the control of the controller. Vibration generating unit to suppress the vortex Vibration wiring for supplying power by connecting the vibration generating unit and the control unit; A heat transfer part installed on an outer circumferential surface of the mixing pipe and configured to increase the temperature by applying heat to the exhaust gas during idling warm-up under the control of a controller; It is achieved by providing an exhaust gas flow improving device of the exhaust manifold consisting of a heat transfer wiring is connected between the heat transfer unit and the control unit to supply power.

이하, 첨부한 도면에 의거하여 본 고안의 구성에 대하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention.

도 2에 도시된 바와 같이, 본 고안에 따른 배기매니폴드의 배기가스 유동개선장치의 구성은 배기매니폴드(20)를 통하여 믹싱배기파이프(30)로 이동하는 배기가스를 담체(70)내의 촉매로 정화시키는 장치에 있어서, 상기 믹싱배기파이프(30)의 외측면에 설치되고, 제어부(60)의 제어를 받아 이동하는 배기가스에 진동을 발생하여 와류를 억제시키는 진동발생부(40)와; 상기 진동발생부(40)와 제어부(60)를 연결하여 전원을 공급하는 진동배선(42)과; 상기 믹싱파이프(30)의 외주면에 설치되고, 제어부(60)의 제어를 받아서 공회전 워밍업시의 배기가스에 열을 가하여 온도를 높여주는 전열부(50)와; 상기 전열부(50)와 제어부(60) 사이에 연결되어 전원을 공급하는 전열배선(52)으로 구성된다.As shown in FIG. 2, the configuration of the exhaust gas flow improving apparatus of the exhaust manifold according to the present invention is a catalyst in the carrier 70 for the exhaust gas moving through the exhaust manifold 20 to the mixing exhaust pipe 30. An apparatus for purifying a furnace, comprising: a vibration generator (40) installed on an outer surface of the mixing exhaust pipe (30) to generate vibration in exhaust gas moving under the control of a controller (60) to suppress vortices; Vibration wiring 42 for supplying power by connecting the vibration generating unit 40 and the control unit 60; A heat transfer part 50 installed on an outer circumferential surface of the mixing pipe 30 to increase the temperature by applying heat to the exhaust gas during idling warm-up under the control of the controller 60; It is composed of a heat transfer wiring 52 is connected between the heat transfer unit 50 and the control unit 60 to supply power.

그리고, 상기 진동발생부(40)는 끝단부가 담체(70)로 향하도록 내측으로 경사져 설치되어서 배기매니폴드(20)에서 배출되는 배기가스의 이동을 방해하지 않으면서 배기가스에 진동을 가하도록 구성된다.In addition, the vibration generator 40 is installed to be inclined inward so that the end portion toward the carrier 70 is configured to apply vibration to the exhaust gas without disturbing the movement of the exhaust gas discharged from the exhaust manifold 20 do.

한편, 상기 믹싱배기파이프(30)의 외측면에 설치되는 전열부(50)는 전열코일등을 배기파이프(30)의 외주면에 감싸거나 통상적으로 사용되는 적절한 방법을 사용하도록 한다.On the other hand, the heat transfer portion 50 is installed on the outer surface of the mixing exhaust pipe 30 to wrap the heat transfer coil or the like on the outer peripheral surface of the exhaust pipe 30 or to use a suitable method commonly used.

이하, 본 고안의 작용을 개략적으로 살펴보도록 한다.Hereinafter, look at the operation of the present invention schematically.

먼저, 본 고안의 사용 상태를 살펴 보게 되면, 자동차를 가동시키면, 엔진을 아이들링 상태로 워밍업(Warming up)하면서 발생된 배기가스가 적절한 온도로 배출되도록 제어부(60)에서 전열배선(52)을 통하여 전열부(50)의 온도를 올려주어 담체(70)로 유입되는 배기가스가 원활하게 정화되도록 한다.First, when looking at the state of use of the present invention, when the vehicle is operated, the control unit 60 through the heat transfer wiring 52 so that the exhaust gas generated while warming up the engine to an idling state is discharged to an appropriate temperature. The temperature of the heat transfer part 50 is raised to smoothly purify the exhaust gas flowing into the carrier 70.

그리고, 워밍업이 끝나고 정상적인 운행상태에서 엔진에서 발생되는 배기가스가 배기매니폴드(20)를 통하여 도 2의 화살표 방향으로 이동하게 되고, 믹싱배기파이프(30)의 정션부위에서 와류가 발생되는 것을 방지하기 위하여 제어부(60)에서 진동배선(42)을 통하여 진동발생부(40)에서 진동을 발생시키게 되면 좌,우측으로 와류되는 배기가스에 미세한 진동을 가하여서 반대로 와류되는 배기가스를 정상방향으로 복귀시켜 신속하게 담체(7)내로 유입시키게 된다.In addition, the exhaust gas generated in the engine in the normal running state after the warm up is moved in the direction of the arrow of FIG. 2 through the exhaust manifold 20, and prevents vortex from occurring at the junction of the mixing exhaust pipe 30. In order to generate the vibration in the vibration generating unit 40 through the vibration wiring 42 in the control unit 60 to apply a slight vibration to the exhaust gas vortex to the left and right, the vortex exhaust gas is returned to the normal direction To be rapidly introduced into the carrier (7).

이곳은 모래를 체로 걸러줄 때 가만히 두는 것보다 체를 좌,우로 흔들어 주면 모래가루가 체 사이로 더욱 더 잘 배출되는 것과 유사한 원리로서 배기가스의 유동을 균일화 시키므로 배기가스의 정화 효율을 향상시키게 되며, 한편, 배기가스는 담체(70)내의 촉매에서 정화되어 외부로 배출되어진다.This is a principle similar to the way in which sand dust is better discharged between sieves than shaking the sieve left and right than sifting the sand through the sieve, thereby improving the purification efficiency of the exhaust gas. On the other hand, the exhaust gas is purified by the catalyst in the carrier 70 and discharged to the outside.

따라서, 상기한 바와 같이 본 고안에 따른 배기매니폴드의 배기가스 유동개선장치를 사용하게 되면, 믹싱배기파이프의 외측면에 진동을 발생시키는 진동발생부를 설치하여 배기매니폴드로 배출되는 배기가스가 믹싱배기파이프로 지날 때 적절한 진동을 가하여 배기가스에서 와류가 발생되는 것을 방지하므로 배기가스의 유동을 균일화 하고, 배기가스의 정화 효율을 향상시키며, 담체의 수명을 증가시키도록 하는 매우 유용하고 효과적인 고안이다.Therefore, when the exhaust gas flow improving device of the exhaust manifold according to the present invention is used as described above, the exhaust gas discharged to the exhaust manifold is installed by installing a vibration generating unit for generating vibration on the outer surface of the mixing exhaust pipe. It is a very useful and effective design to make the flow of exhaust gas uniform, improve the purification efficiency of the exhaust gas, and increase the life of the carrier by applying the appropriate vibration when passing through the exhaust pipe. .

또한, 상가한 전열부를 이용하여 아이들링 워밍업시에 믹싱배기파이프에 열을 가하므로 배기가스의 촉매온도를 향상시켜 배기가스의 정화효율을 향상시키도록 하는 효과를 지니게 되는 잇점이 있다.In addition, since the heat is applied to the mixing exhaust pipe during idling warm-up by using the additional heat transfer unit, there is an advantage in that the catalyst temperature of the exhaust gas is improved to improve the purification efficiency of the exhaust gas.

Claims (2)

배기매니폴드(20)를 통하여 믹싱배기파이프(30)로 이동하는 배기가스를 담체(70)내의 촉매로 정화시키는 장치에 있어서,In the apparatus for purifying the exhaust gas flowing through the exhaust manifold 20 to the mixing exhaust pipe 30 with a catalyst in the carrier 70, 상기 믹싱배기파이프(30)의 외측면에 설치되고, 제어부(60)의 제어를 받아 이동하는 배기가스에 진동을 발생하여 와류를 억제시키는 진동발생부(40)와;A vibration generating unit (40) installed on an outer surface of the mixing exhaust pipe (30) to generate vibrations in the exhaust gas moving under the control of the control unit (60) to suppress vortices; 상기 진동발생부(40)와 제어부(60)를 연결하여 전원을 공급하는 진동배선(42)과;Vibration wiring 42 for supplying power by connecting the vibration generating unit 40 and the control unit 60; 상기 믹싱파이프(30)의 외주면에 설치되고, 제어부(60)의 제어를 받아서 공회전 워밍업시의 배기가스에 열을 가하여 온도를 높여주는 전열부(50)와;A heat transfer part 50 installed on an outer circumferential surface of the mixing pipe 30 to increase the temperature by applying heat to the exhaust gas during idling warm-up under the control of the controller 60; 상기 전열부(50)와 제어부(60) 사이에 연결되어 전원을 공급하는 전열배선(52)으로 구성된 것을 특징으로 하는 배기매니폴드의 배기가스 유동개선장치.The exhaust gas flow improvement device of the exhaust manifold, characterized in that composed of a heat transfer wiring 52 is connected between the heat transfer unit 50 and the control unit 60 to supply power. 제 1 항에 있어서, 상기 진동발생부(40)는 끝단부가 담체(70)로 향하도록 내측으로 경사져 설치되는 것을 특징으로 하는 배기매니폴드의 배기가스 유동개선장치.The apparatus for improving exhaust gas flow of an exhaust manifold according to claim 1, wherein the vibration generating portion (40) is inclined inward so that an end portion thereof faces the carrier (70).
KR2019970045592U 1997-12-31 1997-12-31 Exhaust gas flow improving device of exhaust manifold KR200243971Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482874B1 (en) * 2001-12-14 2005-04-14 현대자동차주식회사 Exhaust manifold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482874B1 (en) * 2001-12-14 2005-04-14 현대자동차주식회사 Exhaust manifold

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