KR100916417B1 - Catalyst Converter Case Structure of Vehicle - Google Patents

Catalyst Converter Case Structure of Vehicle Download PDF

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KR100916417B1
KR100916417B1 KR1020070131752A KR20070131752A KR100916417B1 KR 100916417 B1 KR100916417 B1 KR 100916417B1 KR 1020070131752 A KR1020070131752 A KR 1020070131752A KR 20070131752 A KR20070131752 A KR 20070131752A KR 100916417 B1 KR100916417 B1 KR 100916417B1
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South Korea
Prior art keywords
catalytic converter
outer shell
inner cone
noise
oxygen sensor
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KR1020070131752A
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Korean (ko)
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KR20090064175A (en
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김영범
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기아자동차주식회사
현대자동차주식회사
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Priority to KR1020070131752A priority Critical patent/KR100916417B1/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
    • F01N3/24—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 characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • 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
    • F01N3/24—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 characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/26—Methods or apparatus for fitting, inserting or repairing different elements by bayonet fittings
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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

Abstract

본 발명은 기본적으로는 내측콘과 외측쉘의 2중관 구조를 취하여, 촉매컨버터 케이스 자체의 내구성을 확보하고 주변 부품들의 열해를 방지하는 본래의 기능을 충실히 수행하면서도, 국부적으로는 국소밀착부에 의해 내측콘과 외측콘 사이의 소음의 원인이 되는 공간을 제거하여, 배기가스의 유동에 따른 산소센서 주변부의 소음이 발생하지 않도록 함으로써, 다른 부정적인 효과를 발생시키지 않으면서도 엔진의 소음을 저감시키는 데에 적절한 기여를 할 수 있다.The present invention basically takes the double tube structure of the inner cone and the outer shell, while faithfully performing the original function of securing durability of the catalytic converter case itself and preventing thermal damage of peripheral components, while locally by a local contact portion. By eliminating the space that causes noise between the inner cone and the outer cone to prevent the noise around the oxygen sensor due to the flow of exhaust gas, it is possible to reduce the engine noise without generating other negative effects. Make appropriate contributions.

기류소음, 산소센서, 촉매컨버터 Airflow Noise, Oxygen Sensor, Catalytic Converter

Description

차량의 촉매컨버터 케이스 구조{Catalyst Converter Case Structure of Vehicle}Catalyst Converter Case Structure of Vehicle

본 발명은 차량의 촉매컨버터 케이스 구조에 관한 것으로서, 보다 상세하게는 촉매컨버터에 산소센서를 장착하는 경우에 산소센서를 장착하는 부위에서 발생하는 기류 소음의 발생을 방지할 수 있도록 하는 구조에 관한 기술이다.The present invention relates to a structure of a catalytic converter case of a vehicle, and more particularly, to a structure for preventing generation of airflow noise generated at a site where an oxygen sensor is mounted when an oxygen sensor is mounted in a catalytic converter. to be.

도 1은 종래의 엔진 배기시스템을 도시한 것으로서, 촉매컨버터(500)는 엔진(502)에 근접하여 설치된다.1 shows a conventional engine exhaust system, wherein the catalytic converter 500 is installed in close proximity to the engine 502.

촉매컨버터(500)가 엔진(502)에 근접하여 설치되는 것은 엔진(502)의 시동시 촉매가 신속히 light off point를 지나서 원활한 정화작용을 할 수 있도록 하기 위한 것으로서, 이와 같은 장착방법은 촉매로 사용되는 고가의 귀금속들을 적게 사용하고도 원하는 수준의 배기가스 정화성능을 확보할 수 있다.The catalytic converter 500 is installed in close proximity to the engine 502 so that the catalyst can be quickly purged past the light off point when the engine 502 starts up. Such a mounting method is used as a catalyst. It is possible to achieve the desired level of exhaust gas purification performance using less expensive precious metals.

따라서, 촉매컨버터(500)의 장착위치는 점차 엔진(502)에 가까워지고 있는 추세이다.Therefore, the mounting position of the catalytic converter 500 is gradually approaching the engine 502.

한편, 배기매니폴드(504)에서는 엔진(502) 각 연소실의 연소순서에 따라 발 생되는 배기가스가 상호간의 유동 간섭을 일으키지 않도록 하기 위해 배기매니폴드(504)의 출구부까지 도 1의 A에 도시된 것처럼 각 러너가 구분되어 있다.On the other hand, in the exhaust manifold 504, in order to prevent the exhaust gases generated according to the combustion order of each combustion chamber of the engine 502 from causing mutual interference, the exhaust manifold 504 is connected to the outlet of the exhaust manifold 504 in FIG. As shown, each runner is separated.

따라서, 배기매니폴드(504)에 공연비 제어를 위한 산소센서를 장착하지 못하고, 상기 배기매니폴드(504)의 출구부에 연결되는 촉매컨버터(500)의 입구측에 산소센서를 장착하도록 하고 있다.Therefore, the oxygen sensor for air-fuel ratio control cannot be mounted on the exhaust manifold 504, and the oxygen sensor is mounted on the inlet side of the catalytic converter 500 connected to the outlet of the exhaust manifold 504.

그런데, 상기 촉매컨버터(500)의 케이스는 도시된 바와 같이 촉매컨버터(500) 자체의 내구성 확보와 촉매컨버터(500) 주변 부품들의 열해를 방지하기 위해, 외측쉘(506)과 내측콘(508)의 2중관 구조를 가지고 있어서, 촉매컨버터(500)의 입구부에 산소센서(510)를 장착하면 도 2와 같은 구조가 된다.However, as shown in the case of the catalytic converter 500, the outer shell 506 and the inner cone 508 in order to secure durability of the catalytic converter 500 itself and to prevent thermal degradation of components surrounding the catalytic converter 500. It has a double tube structure, when the oxygen sensor 510 is mounted to the inlet of the catalytic converter 500 has a structure as shown in FIG.

즉, 상기 외측쉘(506)에는 센서소켓(512)이 용접되어 있고, 산소센서(510)가 상기 센서소켓(512)에 결합되어 상기 외측쉘(506)과 내측콘(508)을 모두 관통한 상태를 가지게 되는 것이다.That is, a sensor socket 512 is welded to the outer shell 506, and an oxygen sensor 510 is coupled to the sensor socket 512 to penetrate both the outer shell 506 and the inner cone 508. You have a state.

따라서, 상기 내측콘(508)은 상기 산소센서(510)의 원활한 결합성을 보장하기 위해 상기 산소센서(510)의 직경보다 다소 큰 구멍이 형성되어 있는데, 이 구멍은 배기가스가 촉매컨버터(500)를 통과하는 동안 배기가스가 유입되면서 기류소음을 일으키는 원인이 되고 있다.Accordingly, the inner cone 508 is formed with a hole slightly larger than the diameter of the oxygen sensor 510 to ensure a smooth coupling of the oxygen sensor 510, the exhaust gas is the catalytic converter 500 Exhaust gas is introduced while passing through), causing airflow noise.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 배기가스가 촉매컨버터의 산소센서 장착부위를 통과할 때, 기류 소음이 발생되지 않도록 하거나 저감할 수 있도록 함으로써, 엔진의 정숙성을 더욱 향상시킬 수 있도록 한 차량의 촉매컨버터 케이스 구조를 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, and when the exhaust gas passes through the oxygen sensor mounting portion of the catalytic converter, it is possible to prevent or reduce the airflow noise, further improving the quietness of the engine It is an object of the present invention to provide a catalyst converter case structure of a vehicle so that it can be made.

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량의 촉매컨버터 케이스 구조는Catalytic converter case structure of the vehicle of the present invention for achieving the above object is

내측콘과 상기 내측콘의 외측에 이격된 상태로 외측쉘이 구비된 2중관 구조로 이루어진 차량의 촉매컨버터 케이스 구조에 있어서,In the catalyst converter case structure of a vehicle having a double tube structure having an outer shell in a state spaced apart from the inner cone and the outer cone,

상기 촉매컨버터 케이스의 입구측에서 상기 외측쉘에는 산소센서를 장착하기 위한 센서소켓이 결합되고;A sensor socket for mounting an oxygen sensor is coupled to the outer shell at the inlet side of the catalytic converter case;

상기 내측콘은 상기 센서소켓이 결합된 부위에 국부적으로 상기 외측쉘의 내측면에 밀착되는 국소밀착부가 구비된 것The inner cone is provided with a local close contact portion in close contact with the inner surface of the outer shell locally the sensor socket is coupled;

을 특징으로 한다.It is characterized by.

상기 센서소켓은 상기 외측쉘에 용접에 의해 결합되고;The sensor socket is joined to the outer shell by welding;

상기 내측콘은 상기 국소밀착부가 상기 외측쉘과 함께 상기 센서소켓에 용접되는 구조로 할수 있다.The inner cone may have a structure in which the local close contact portion is welded to the sensor socket together with the outer shell.

본 발명은 배기가스가 촉매컨버터의 산소센서 장착부위를 통과할 때, 배기가스의 유동에 따른 소음의 원인이 되는 구조를 제거함으로써, 기류 소음이 발생되지 않도록 하거나 저감할 수 있도록 하여, 엔진의 정숙성을 더욱 향상시킬 수 있도록 한다.The present invention eliminates the structure that causes noise due to the flow of exhaust gas when the exhaust gas passes through the oxygen sensor mounting portion of the catalytic converter, so that airflow noise is not generated or reduced, resulting in quietness of the engine. To further improve.

도 3을 참조하면, 본 발명 실시예는 내측콘(1)과 상기 내측콘(1)의 외측에 이격된 상태로 외측쉘(3)이 구비된 2중관 구조로 이루어진 차량의 촉매컨버터 케이스 구조에 있어서, 상기 촉매컨버터 케이스의 입구측에서 상기 외측쉘(3)에는 산소센서(5)를 장착하기 위한 센서소켓(7)이 결합되고; 상기 내측콘(1)은 상기 센서소켓(7)이 결합된 부위에 국부적으로 상기 외측쉘(3)의 내측면에 밀착되는 국소밀착부(9)가 구비된 구조이다.Referring to FIG. 3, an embodiment of the present invention provides a catalyst converter case structure of a vehicle having a double pipe structure having an outer shell 3 in a state spaced apart from an inner cone 1 and an outer cone 1. A sensor socket (7) for mounting an oxygen sensor (5) is coupled to the outer shell (3) at the inlet side of the catalytic converter case; The inner cone (1) is a structure provided with a local close contact (9) in close contact with the inner surface of the outer shell (3) locally to the sensor socket 7 is coupled.

즉, 종래 상기 외측쉘(3)과 내측콘(1) 사이의 공간으로 상기 산소센서(5)의 장착을 위해 구비되었던 상기 내측콘(1)의 구멍을 통해 배기가스가 유입하면서 소음을 발생시켰으나, 본 발명에서는 상기와 같은 소음 발생의 원인이 되는 공간 자체를 제거함으로서, 소음 발생을 억제할 수 있도록 한 것이다.That is, while the exhaust gas is introduced into the space between the outer shell (3) and the inner cone (1) through the hole of the inner cone (1) which was provided for mounting the oxygen sensor (5) In the present invention, it is possible to suppress the occurrence of noise by removing the space itself that causes the noise as described above.

본 실시예에서, 상기 센서소켓(7)은 상기 외측쉘(3)에 용접에 의해 결합되고, 상기 내측콘(1)은 상기 국소밀착부(9)가 상기 외측쉘(3)과 함께 상기 센서소켓(7)에 용접되는 구조로 하였다.In this embodiment, the sensor socket 7 is coupled to the outer shell 3 by welding, and the inner cone 1 has the local contact portion 9 with the outer shell 3 together with the sensor. It was set as the structure welded to the socket 7.

물론, 종래의 기류소음을 없애기 위한 방편으로는 상기 내측콘을 완전히 제 거하고 외측쉘에 산소센서를 장착하는 방법이 고려될 수 있으나, 이는 촉매컨버터 자체의 내구성과 주변 부품들의 열해 문제를 야기시키므로 적절하지 못하다.Of course, a method for removing the airflow noise in the related art may be considered to remove the inner cone completely and equip the outer shell with an oxygen sensor, but this causes problems of durability of the catalytic converter itself and deterioration of peripheral components. Not appropriate

또한, 종래의 내측콘과 외측쉘 사이의 공간에 소음 절연재를 충전하는 구조를 생각할 수 있으나, 이는 상기 내측콘이 열전달을 원활히 하지 못하고 상기 촉매컨버터를 통과하는 고온의 배기가스에 의해 열이 축적되어 내측콘의 내구성이 급격히 저하될 수 있으며, 상기와 같은 소음 절연재 또한 고온의 배기가스에 충분한 내구성을 제공하기에 용이하지 않다.In addition, a conventional structure for filling a noise insulating material into the space between the inner cone and the outer shell, but this is because the inner cone does not facilitate heat transfer, heat is accumulated by the high-temperature exhaust gas passing through the catalytic converter The durability of the inner cone may be drastically lowered, and the noise insulation material as described above is also not easy to provide sufficient durability to the hot exhaust gas.

따라서, 상기한 바와 같은 다른 방편에 비하여, 본 발명에 의한 촉매컨버터 케이스 구조는 기본적으로는 내측콘(1)과 외측쉘(3)의 2중관 구조를 취하여, 촉매컨버터 케이스 자체의 내구성을 확보하고 주변 부품들의 열해를 방지하는 본래의 기능을 충실히 수행하면서도, 국부적으로는 상기 국소밀착부(9)에 의해 내측콘(1)과 외측콘 사이의 소음의 원인이 되는 공간을 제거하여, 배기가스의 유동에 따른 산소센서(5) 주변부의 소음이 발생하지 않도록 함으로써, 다른 부정적인 영향을 끼치지 않으면서도 엔진의 소음을 저감시키는 데에 적절한 기여를 할 수 있게 된다.Therefore, compared with the other means as described above, the catalytic converter case structure according to the present invention basically takes the double tube structure of the inner cone (1) and the outer shell (3), ensuring the durability of the catalytic converter case itself While faithfully performing the original function of preventing thermal damage of the peripheral components, the local contact portion 9 locally removes the space causing the noise between the inner cone 1 and the outer cone, By preventing the noise around the oxygen sensor 5 due to the flow, it is possible to make an appropriate contribution to reducing the noise of the engine without adversely affecting other.

도 1은 종래 기술에 의한 엔진의 배기시스템을 설명한 도면,1 is a view illustrating an exhaust system of an engine according to the prior art;

도 2는 종래 기술에 의한 차량의 촉매컨버터 케이스 구조를 도시한 것으로서 산소센서의 설치상태를 설명한 도면,2 is a view illustrating a catalyst converter case structure of a vehicle according to the related art, illustrating an installation state of an oxygen sensor;

도 3은 본 발명에 따른 차량의 촉매컨버터 케이스 구조를 설명한 도면이다.3 is a view illustrating a catalyst converter case structure of a vehicle according to the present invention.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 내측콘 3; 외측쉘One; Inner cone 3; Outer shell

5; 산소센서 7; 센서소켓5; Oxygen sensor 7; Sensor socket

9; 국소밀착부 9; Topical contact part

Claims (2)

내측콘과 상기 내측콘의 외측에 이격된 상태로 외측쉘이 구비된 2중관 구조로 이루어진 차량의 촉매컨버터 케이스 구조에 있어서,In the catalyst converter case structure of a vehicle having a double tube structure having an outer shell in a state spaced apart from the inner cone and the outer cone, 상기 촉매컨버터 케이스의 입구측에서 상기 외측쉘(3)에는 산소센서(5)를 장착하기 위한 센서소켓(7)이 결합되고;A sensor socket (7) for mounting an oxygen sensor (5) is coupled to the outer shell (3) at the inlet side of the catalytic converter case; 상기 내측콘(1)은 상기 센서소켓(7)이 결합된 부위에 국부적으로 상기 외측쉘(3)의 내측면에 밀착되는 국소밀착부(9)가 구비된 것Wherein the inner cone (1) is provided with a local close contact portion 9 in close contact with the inner surface of the outer shell (3) locally to the portion where the sensor socket (7) is coupled 을 특징으로 하는 차량의 촉매컨버터 케이스 구조.Catalytic converter case structure of the vehicle, characterized in that. 청구항 1에 있어서,The method according to claim 1, 상기 센서소켓(7)은 상기 외측쉘(3)에 용접에 의해 결합되고;The sensor socket (7) is joined to the outer shell (3) by welding; 상기 내측콘(1)은 상기 국소밀착부(9)가 상기 외측쉘(3)과 함께 상기 센서소켓(7)에 용접되는 것The inner cone 1 is the local contact portion 9 is welded to the sensor socket 7 together with the outer shell (3) 을 특징으로 하는 차량의 촉매컨버터 케이스 구조.Catalytic converter case structure of the vehicle, characterized in that.
KR1020070131752A 2007-12-15 2007-12-15 Catalyst Converter Case Structure of Vehicle KR100916417B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10753263B2 (en) 2018-06-15 2020-08-25 Hyundai Motor Company Exhaust device of turbocharged vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000073755A (en) 1998-08-26 2000-03-07 Honda Motor Co Ltd O2 sensor installing structure of catalyst converter
JP2002161778A (en) 2000-11-28 2002-06-07 Tokyo Roki Co Ltd O2 sensor-mounting structure of catalyst converter
KR20070053704A (en) * 2004-08-02 2007-05-25 아빈 테크놀로지스 인코포레이티드 Catalytic converter and associated method of assembly
US7279140B2 (en) 2001-07-12 2007-10-09 Delphi Technologies, Inc. Catalytic converter with integral oxygen sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000073755A (en) 1998-08-26 2000-03-07 Honda Motor Co Ltd O2 sensor installing structure of catalyst converter
JP2002161778A (en) 2000-11-28 2002-06-07 Tokyo Roki Co Ltd O2 sensor-mounting structure of catalyst converter
US7279140B2 (en) 2001-07-12 2007-10-09 Delphi Technologies, Inc. Catalytic converter with integral oxygen sensor
KR20070053704A (en) * 2004-08-02 2007-05-25 아빈 테크놀로지스 인코포레이티드 Catalytic converter and associated method of assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10753263B2 (en) 2018-06-15 2020-08-25 Hyundai Motor Company Exhaust device of turbocharged vehicle

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