KR20080013384A - Tail trim assembly for vehicle - Google Patents

Tail trim assembly for vehicle Download PDF

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Publication number
KR20080013384A
KR20080013384A KR1020060074841A KR20060074841A KR20080013384A KR 20080013384 A KR20080013384 A KR 20080013384A KR 1020060074841 A KR1020060074841 A KR 1020060074841A KR 20060074841 A KR20060074841 A KR 20060074841A KR 20080013384 A KR20080013384 A KR 20080013384A
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KR
South Korea
Prior art keywords
diameter portion
cylindrical member
small diameter
baffle
tail trim
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KR1020060074841A
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Korean (ko)
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KR101241189B1 (en
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조재연
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현대자동차주식회사
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Priority to KR1020060074841A priority Critical patent/KR101241189B1/en
Publication of KR20080013384A publication Critical patent/KR20080013384A/en
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Publication of KR101241189B1 publication Critical patent/KR101241189B1/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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • 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
    • F01N13/20—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 having flared outlets, e.g. of fish-tail shape

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

A tail trim assembly for a vehicle is provided to effectively reduce noise from a main muffler and back pressure in cooperation with the main muffler. A tail trim assembly(2) for a vehicle includes a first cylindrical member(4), a second cylindrical member(6), a plurality of chambers(8,10,12), a plurality of baffles(14,16,18), a sealing unit, and an outer tube member(22). The first cylindrical member has a small diameter portion(24) and a large diameter portion. The second cylindrical member has a small diameter portion fitted to the large diameter portion of the first cylindrical member and an expanded portion gradually increasing from the rear end of the small diameter portion. The chambers are formed on the outer surface of the large diameter portion of the first cylindrical member. The baffles are formed on both sides of the chambers. The sealing unit increases/decreases opening area of the hole of the large diameter portion of the first cylindrical member in accordance with exhaust pressure. The outer tube member houses components of the tail trim assembly.

Description

자동차 배기계의 테일 트림 조립체{TAIL TRIM ASSEMBLY FOR VEHICLE} TAIL TRIM ASSEMBLY FOR VEHICLE}

도 1은 본 발명에 의한 테일 트림의 내부 사시도.1 is an internal perspective view of a tail trim according to the present invention;

도 2는 본 발명에 의한 테일 트림의 조립 단면도.2 is an assembled cross-sectional view of the tail trim according to the present invention.

도 3은 고속 회전시의 작동 상태를 보인 다면도.Figure 3 is a view showing the operating state at high speed rotation.

도 4는 종래 테일 트림의 단면도이다.4 is a cross-sectional view of a conventional tail trim.

본 발명은 자동차 배기계의 테일 파이프 말단부에 장착되는 테일 트림 조립체에 관한 것으로서, 보다 상세하게는 배기계의 후단부를 미려하게 장식하여 상품성을 높이고, 메인 머플러 이후의 토출 소음 감소는 물론 메일 머플러를 보조하여 배압을 효과적으로 저감시킬 수 있도록 한 자동차 배기계의 테일 트림 조립체에 관한 것이다.The present invention relates to a tail trim assembly mounted to a tail pipe end of an automobile exhaust system. More specifically, the rear end of the exhaust system is beautifully decorated to increase the merchandise, and to reduce the discharge noise after the main muffler as well as to assist the back muffler. A tail trim assembly of an automobile exhaust system can be effectively reduced.

자동차 배기계의 테일 트림(100)은 도 4에서와 같이, 배기계의 테일 파이프(102)의 말단에 부착되어 디자인의 차별화로 상품성을 높이는데 기여하게 되는데, 그 구성은 단순히 테일 파이프(102)의 내경(D1) 보다 점차적으로 커지는 내경(D2)를 가지도록 형성되는 구조로 구성된다.The tail trim 100 of the automobile exhaust system is attached to the end of the tail pipe 102 of the exhaust system, as shown in FIG. 4, which contributes to the increase of the merchandise by the differentiation of the design, the configuration of which is simply the inner diameter of the tail pipe 102. It consists of a structure formed so as to have an inner diameter D2 which becomes gradually larger than (D1).

이와같이 테일 트림(100)의 내경(D2)이 테일 파이프(102)의 내경(D1) 보다 크게 형성되면 상기 테일 파이프(102)를 통해 배출되던 배기가스의 배출속도는 그 만큼 늦추어지게 되며, 이로 인하여 보행자는 배기가스에 의한 열해가 방지된다.As such, when the inner diameter D2 of the tail trim 100 is larger than the inner diameter D1 of the tail pipe 102, the discharge speed of the exhaust gas discharged through the tail pipe 102 is slowed by that amount. Pedestrians are prevented from thermal damage by exhaust gases.

그리고 테일 트림(100)은 외관이 미려한 스테인레스 스틸로 이루어짐으로써, 배기계 후단부를 미려하게 장식하게 된다.And the tail trim 100 is made of stainless steel with a beautiful appearance, thereby beautifully decorating the rear end of the exhaust system.

그러나 상기와 같은 테일 트림에 있어서는 배기계에서 문제시 되고 있는 메인 머플러 이후의 토출음과, 아이들시 부밍 노이즈 저하에 전혀 기여하지 못한다는 문제점을 내포하고 있다.However, in the tail trim as described above, there is a problem in that the discharge sound after the main muffler, which is a problem in the exhaust system, and contributes not to any reduction in the booming noise during idling.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로서, 본 발명의 목적은 배기계의 후단부를 미려하게 장식하여 상품성을 높이고, 메인 머플러 이후의 토출 소음 감소는 물론 메일 머플러를 보조하여 배압을 효과적으로 저감시킬 수 있도록 한 자동차 배기계의 테일 트림 조립체를 제공함에 있다.Therefore, the present invention has been invented to solve the above problems, the object of the present invention is to decorate the rear end of the exhaust system beautifully to increase the marketability, reduce the discharge noise after the main muffler as well as assist the mail muffler effectively back pressure To provide a tail trim assembly of an automobile exhaust system to be reduced.

이를 실현하기 위하여 본 발명은, 자동차 배기계의 테일 파이프의 선단에 동일선상으로 연결되는 테일 트림 조립체를 형성함에 있어서, In order to realize this, the present invention, in forming a tail trim assembly connected in the same line to the front end of the tail pipe of the vehicle exhaust system,

배기압이 낮은 경우에는 그대로 통과하되, 말단부의 확개부에 의하여 유속이 낮아지도록 하고, 배기압이 높은 경우에는 배기의 일부가 흡음부재를 통과하여 배출되도록 구성한 자동차 배기계의 테일 트림 조립체를 제공한다. When the exhaust pressure is low, but passes as it is, the flow rate is lowered by the expansion of the distal end portion, when the exhaust pressure is high provides a tail trim assembly of the vehicle exhaust system configured to be discharged through the sound absorbing member.

보다 구체적으로는 중간에 확개부를 두고 소직경부와 다공부재인 대직경부로 이루어지는 제1 원통부재와; More specifically, the first cylindrical member comprising a small diameter portion and a large diameter portion that is a porous member with an enlarged portion in the middle thereof;

상기 제1 원통부재의 대직경부에 삽입되는 소직경부와, 상기 소직경부의 후단으로부터 내경이 점차적으로 커지는 확개부로 이루어지는 제2 원통부재와;A second cylindrical member comprising a small diameter portion inserted into the large diameter portion of the first cylindrical member, and an enlarged portion whose inner diameter gradually increases from a rear end of the small diameter portion;

상기 제1 원통부재의 대직경부 외주측에 배기가 유입되는 쳄버와, 상기 쳄버의 양측에 형성되어 상기 쳄버에 유입된 배기가 유입되어 흡음이 이루어지도록 하는 쳄버를 형성하는 원판부재인 다수의 배플과;A plurality of baffles, which are chambers in which exhaust flows into the outer circumferential side of the large cylindrical portion of the first cylindrical member, and discs formed on both sides of the chamber to form chambers in which exhaust flows into the chamber to absorb sound; ;

상기 제1 원통부재의 대직경부와 제2 원통부재의 소직경부가 중첩되어 그 사이로 형성되는 공간부에 배기 압력에 따라 제1 원통부재의 대직경부의 통공의 개구면적을 증감시키는 시일링 수단과;Sealing means for increasing or decreasing the opening area of the through hole of the large diameter portion of the first cylindrical member according to the exhaust pressure in a space portion formed between the large diameter portion of the first cylindrical member and the small diameter portion of the second cylindrical member overlapping therebetween;

상기 전체를 수용하면서 감싸는 원통형의 외관부재를 포함하여 이루어지되, 상기 쳄버 중 최후측단 쳄버는 제2 원통부재의 확개부를 통해 외부와 연통되는 자동차 배기계의 테일 트림 조립체를 제공한다.Comprising a cylindrical outer member wrapped while receiving the whole, the rear end of the chamber provides a tail trim assembly of the vehicle exhaust system in communication with the outside through the expansion of the second cylindrical member.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 1, 및 도 2는 본 발명에 의한 테일 트림 조립체의 내부 사시도 및 그 단면도로서, 부호 2는 테일 트림 조립체 전체를 지칭한다.1 and 2 are internal perspective views and cross-sectional views of the tail trim assembly according to the present invention, wherein reference numeral 2 designates the entire tail trim assembly.

상기 테일 트림 조립체(2)는 미도시한 배기계의 테일 파이프의 선단에 동일선상으로 배치되는 제1, 2 원통 부재(4)(6)와, 상기 제1, 2 원통부재(4)(6)의 외주측에 상호 소정의 간격을 두고 배치되어 이들 사이에 다수의 쳄버(8)(10)(12)를 구성하는 다수의 배플(14)(16)(18)(20)과, 상기 제1, 2 원통부재(4)(6)의 중첩부에 배치되는 시일링 수단과, 상기 배플 전체를 수용하면서 감싸는 원통형의 외관부재(22)를 포함하여 이루어진다.The tail trim assembly 2 comprises first and second cylindrical members 4 and 6 arranged co-linearly at the tip of a tail pipe of an exhaust system, not shown, and the first and second cylindrical members 4 and 6. And a plurality of baffles 14, 16, 18, and 20 arranged on the outer circumferential side of the substrate at predetermined intervals to constitute a plurality of chambers 8, 10, and 12 therebetween. It comprises a sealing means disposed on the overlapping portion of the two cylindrical members (4) and (6), and a cylindrical outer member (22) wrapped while receiving the entire baffle.

상기에서 제1 원통부재(4)는 선단의 소직경부(24)와 대직경부(26)가 중간에 확개부(28)를 두고 연결되어 일체가 되며, 상기 대직경부(26)는 다수의 통공(30)을 갖는 다공부재로 이루어진다.In the first cylindrical member 4 is a small diameter portion 24 and the large diameter portion 26 of the tip is connected to the unit with the expansion portion 28 in the middle, the large diameter portion 26 is a plurality of through holes ( It consists of a porous member having 30).

그리고 상기 제2 원통부재(6)는 상기 제1, 원통부재(4)의 소직경부(24)와 동일 직경을 갖는 소직경부(32)와, 상기 소직경부(32)의 후단으로부터 내경이 점차적으로 커지는 확개부(34)로 이루어진다.In addition, the second cylindrical member 6 has a small diameter portion 32 having the same diameter as the small diameter portion 24 of the first cylindrical member 4, and the inner diameter gradually from the rear end of the small diameter portion 32. It becomes the expansion part 34 which becomes large.

또한, 상기 확개부(34)의 외주측에는 원주상 등간격으로 다수의 토출공(36)이 형성되고, 상기 토출공(36)은 일측단부가 상기 소직경부(32)와 확개부(34)의 경계부까지 연장되는 토출 파이프(38)에 연결된다.In addition, a plurality of discharge holes 36 are formed at the outer circumferential side of the extension portion 34 at circumferential equal intervals, and one side end of the discharge hole 36 is formed of the small diameter portion 32 and the extension portion 34. It is connected to a discharge pipe 38 extending to the boundary.

상기 제1, 2, 3, 4 배플(14)(16)(18)(20)은 원판형 부재로 이루어지는데, 제1 배플은 제1 원통부재(4)의 소직경부(24) 중간부의 외주측에 고착되고, 제2 배플(16)은 다수의 통공(40)이 형성되는 다공판으로 이루어져 소직경부(24)와 확개부(28)의 경계부에 고착된다.The first, second, third, and fourth baffles 14, 16, 18, and 20 are made of a disc-shaped member, the first baffle being the outer circumference of the middle portion of the small diameter portion 24 of the first cylindrical member 4. It is fixed to the side, and the 2nd baffle 16 consists of a porous plate in which the several through-hole 40 is formed, and is fixed to the boundary part of the small diameter part 24 and the extension part 28. As shown in FIG.

그리고 상기 제3 배플(18)은 상기 제2 배플(16)과 마찬가지로 다수의 통공(42)이 형성되는 다공판으로 이루어져 대직경부(26)의 단부와 제2 원통부재(6)의 소직경부(24)에 고정되면서 제1, 2 원통부재(4)(6)를 연결하여 준다.The third baffle 18 is formed of a porous plate in which a plurality of through holes 42 are formed, similar to the second baffle 16, and an end portion of the large diameter portion 26 and a small diameter portion of the second cylindrical member 6 ( While being fixed to 24, it connects the first and second cylindrical members (4) (6).

상기와 같이 제1,2 원통부재(4)(6)를 연결함에 있어서는 제2 원통부재(6)의 소직경부(32)의 후단부가 상기 제1 원통부재(4)의 대직경부(26)와 확개부(28)의 경 계부에 위치할 수 있도록 한다.In connecting the first and second cylindrical members 4 and 6 as described above, the rear end portion of the small diameter portion 32 of the second cylindrical member 6 and the large diameter portion 26 of the first cylindrical member 4 are connected. To be located at the boundary of the extension (28).

또한, 상기 제4 배플(20)은 상기 토출 파이프(38)와 연통되는 통공(44)을 보유하며, 이의 통공(44)이 상기 토출 파이프(38)과 연통됨으로써, 제2 원통부재(6)의 확개부 토출공(36)과 연통된다.In addition, the fourth baffle 20 has a through hole 44 in communication with the discharge pipe 38, and the through hole 44 communicates with the discharge pipe 38, whereby the second cylindrical member 6 is provided. Is communicated with the enlarged discharge hole 36 of the.

이에 따라 상기 제1 배플(14)과 제2 배플(16)에 의하여 제1 쳄버(8)가 형성되어 글라스 울(grass wool)과 같은 흡음부재(46)가 충진되며, 고, 상기 제2 배플(16)과 제3 배플(18)에 의하여 제2 쳄버(10)가 형성되며, 상기 제3 배플(18)과 제4 배플(20)에 의하여 제3 쳄버(12)가 형성되어 글라스 울과 같은 흡음부재(48)가 충진된다.Accordingly, the first chamber 8 is formed by the first baffle 14 and the second baffle 16 to fill a sound absorbing member 46 such as glass wool, and thus, the second baffle. The second chamber 10 is formed by the 16 and the third baffles 18, and the third chamber 12 is formed by the third baffles 18 and the fourth baffles 20 to form glass wool and The same sound absorbing member 48 is filled.

그리고 상기 제1 원통부재(4)의 대직경부(26)와 상기 제2 원통부재(6)의 소직경부(24) 사이의 공간부에는 시일링 수단이 배치되는데, 상기 시일링 수단은 일정폭을 갖는 환상부재로 상기 공간부에서 전후 슬라이드 가능하게 배치되는 시일재(46)과, 상기 시일재(50)와 상기 제3 배플(18) 사이에 개재되는 탄성부재(52)를 포함하여 이루어진다.And a sealing means is disposed in the space between the large diameter portion 26 of the first cylindrical member 4 and the small diameter portion 24 of the second cylindrical member 6, the sealing means has a predetermined width And an elastic member 52 interposed between the seal member 50 and the third baffle 18.

이에 따라 배기 압력이 낮을 때에는 상기 탄성부재(52)의 탄성력에 의하여 후측으로 밀리게 되어 제2 원통부재(6)의 최후단부에 위치하며, 배기의 압력이 점점 높아지는 경우에는 그 압력에 따라 탄성부재(52)의 탄성력을 극복하면서 전측으로 이동하게 된다.Accordingly, when the exhaust pressure is low, it is pushed to the rear side by the elastic force of the elastic member 52, and is located at the end of the second cylindrical member 6, and when the exhaust pressure is gradually increased, the elastic member according to the pressure Overcoming the elastic force of (52) is to move to the front side.

그리고 상기 제1,2 원통부재(4)(6)의 외주측에는 원통형의 외관부재(22)가 배치되어 도2와 같은 하나의 테일 트림 조립체를 형성하게 되는 것이다.In addition, a cylindrical exterior member 22 is disposed on the outer circumferential side of the first and second cylindrical members 4 and 6 to form one tail trim assembly as shown in FIG. 2.

상기에서 외관부재(22)는 알루미늄 또는 스테인레스 스틸과 같이 외관이 미려한 재질로 형성하는 것이 바람직하다.The exterior member 22 is preferably formed of a material with a beautiful appearance, such as aluminum or stainless steel.

상기와 같은 테일 트림 조립체(2)는 미도시한 자동차 배기계의 테일 파이프의 후단부에 장착 사용되는데, 배기 압력이 작을 때에는 도3의 중앙 화살표와 같이 제1,2 원통부재4)(6)의 소직경부(24)(32)를 통해 배출이 이루어지게 된다.The tail trim assembly 2 is used to be mounted on the rear end of the tail pipe of the automobile exhaust system, which is not shown. When the exhaust pressure is small, the first and second cylindrical members 4 and 6 are disposed as shown by the center arrow of FIG. Discharge is made through the small diameter portion 24, 32.

그리고 배기 압력이 탄성부재(42)의 탄성력을 극복할 수 있는 고출력 운전시에는 배기 압력의 일부가 시일제(50)에 작용하게 되는 바, 시일제(52)가 후퇴하게 된다. In the high output operation in which the exhaust pressure can overcome the elastic force of the elastic member 42, a part of the exhaust pressure acts on the sealant 50, so that the sealant 52 retreats.

상기와 같은 시일제(52)가 후퇴하게 되면, 상기 제2 쳄버(10)의 통공(30)이 열리게 되는 바, 배기가 제2 쳄버(10)로 유입되고, 다공판으로 이루어지는 제3 배플(18)을 통과하여 제3 쳄버(12)로 유입된다.When the sealing agent 52 as described above retreats, the through hole 30 of the second chamber 10 is opened, and the exhaust flows into the second chamber 10, and the third baffle made of the porous plate ( It passes through 18) and flows into the third chamber 12.

상기 제3 쳄버(12)로 유입된 배기는 흡음부재(48)에 의하여 소음이 저감되며, 이의 배기는 제4 배플(20)의 통공(44)과 토출 파이프(38)를 토출된다.The exhaust gas introduced into the third chamber 12 is reduced by the sound absorbing member 48, and the exhaust gas discharges the through hole 44 and the discharge pipe 38 of the fourth baffle 20.

그리고 상기 제2 쳄버(10)에 유입된 배기의 일부는 다공판인 제2 배플(16)을 통해 제1 쳄버(8)로 유입되어 소음이 저감되며, 동시에 테일 트림 전체 구조에 있어서, 제3 쳄버(12)와 같이 기류 소음 발생을 방지하게 되는 것이다.A part of the exhaust flowed into the second chamber 10 is introduced into the first chamber 8 through the second baffle 16, which is a porous plate, to reduce noise, and at the same time, in the whole tail trim structure, the third Like the chamber 12 is to prevent the generation of airflow noise.

이상에서와 같이 본 발명에 의하면, 배기계의 후단부를 미려하게 장식하여 상품성을 높이고, 메인 머플러 이후의 토출 소음 감소는 물론 메일 머플러를 보조하여 배압을 효과적으로 저감시킬 수 있는 발명인 것이다.As described above, according to the present invention, the rear end of the exhaust system is beautifully decorated to increase the marketability, and the back noise can be effectively reduced by assisting the mail muffler as well as reducing the discharge noise after the main muffler.

Claims (5)

자동차 배기계의 테일 파이프의 선단에 동일선상으로 연결되는 테일 트림 조립체를 형성함에 있어서, In forming a tail trim assembly which is connected in line with the tip of the tail pipe of the automobile exhaust system, 배기압이 낮은 경우에는 그대로 통과하되, 말단부의 확개부에 의하여 유속이 낮아지도록 하고, 배기압이 높은 경우에는 배기의 일부가 흡음부재를 통과하여 배출되도록 구성함을 특징으로 하는 자동차 배기계의 테일 트림 조립체. If the exhaust pressure is low, it passes as it is, but the flow rate is lowered by the expansion of the end portion, if the exhaust pressure is high, the tail trim of the vehicle exhaust system characterized in that a part of the exhaust is discharged through the sound absorbing member Assembly. 중간에 확개부를 두고 소직경부와 다공부재인 대직경부로 이루어지는 제1 원통부재와; A first cylindrical member having a small diameter portion and a large diameter portion that is a porous member having an enlarged portion in the middle thereof; 상기 제1 원통부재의 대직경부에 삽입되는 소직경부와, 상기 소직경부의 후단으로부터 내경이 점차적으로 커지는 확개부로 이루어지는 제2 원통부재와;A second cylindrical member comprising a small diameter portion inserted into the large diameter portion of the first cylindrical member, and an enlarged portion whose inner diameter gradually increases from a rear end of the small diameter portion; 상기 제1 원통부재의 대직경부 외주측에 배기가 유입되는 쳄버와, 상기 쳄버의 양측에 형성되어 상기 쳄버에 유입된 배기가 유입되어 흡음이 이루어지도록 하는 쳄버를 형성하는 원판부재인 다수의 배플과;A plurality of baffles, which are chambers in which exhaust flows into the outer circumferential side of the large cylindrical portion of the first cylindrical member, and discs formed on both sides of the chamber to form chambers in which exhaust flows into the chamber to absorb sound; ; 상기 제1 원통부재의 대직경부와 제2 원통부재의 소직경부가 중첩되어 그 사이로 형성되는 공간부에 배기 압력에 따라 제1 원통부재의 대직경부의 통공의 개구면적을 증감시키는 시일링 수단과;Sealing means for increasing or decreasing the opening area of the through hole of the large diameter portion of the first cylindrical member according to the exhaust pressure in a space portion formed between the large diameter portion of the first cylindrical member and the small diameter portion of the second cylindrical member overlapping therebetween; 상기 전체를 수용하면서 감싸는 원통형의 외관부재를 포함하여 이루어지되, 상기 쳄버 중 최후측단 쳄버는 제2 원통부재의 확개부를 통해 외부와 연통됨을 특 징으로 하는 자동차 배기계의 테일 트림 조립체.And a cylindrical outer member wrapped while receiving the entirety, wherein the rearmost chamber of the chamber is in communication with the outside through an extension of the second cylindrical member. 제2항에 있어서, 제2 원통부재의 확개부의 외주측에는 원주상 등간격으로 다수의 토출공이 형성되고, 상기 토출공은 일측단부가 상기 소직경부와 확개부의 경계부까지 연장되는 토출 파이프에 연결됨읕 특징으로 하는 자동차 배기계의 테일 트림 조립체.According to claim 2, A plurality of discharge holes are formed at the outer circumferential side of the expansion portion of the second cylindrical member at circumferential equal intervals, the discharge hole is connected to the discharge pipe that one end is extended to the boundary between the small diameter portion and the expansion portion 읕 Tail trim assembly of vehicle exhaust system. 제2항에 있어서, 배플은 4개의 배플로 이루어지되, 제1 배플은 제1 원통부재의 소직경부 중간부의 외주측에 배치되고, 제2 배플은 다수의 통공이 형성되는 다공판으로 이루어져 소직경부와 확개부의 경계부에 배치되며, 제3 배플은 다수의 통공이 형성되는 다공판으로 이루어져 대직경부의 단부와 제2 원통부재의 소직경부에 고정되면서 제1, 2 원통부재를 연결하여 주고, 제4 배플은 상기 토출 파이프를 통해 외부와 연통되도록 상기 토출 파이프의 단부에 고정됨으로써, 상기 제1 배플측으로부터 제1,2,3 쳄버가 형성됨을 특징으로 하는 자동차 배기계의 테일 트림 조립체.The baffle of claim 2, wherein the baffle is formed of four baffles, wherein the first baffle is disposed on the outer circumferential side of the middle portion of the small diameter portion of the first cylindrical member, and the second baffle is made of a porous plate in which a plurality of holes are formed. And the third baffle is formed of a perforated plate formed with a plurality of through holes, and connects the first and second cylindrical members while being fixed to the end of the large diameter portion and the small diameter portion of the second cylindrical member. The baffle is fixed to the end of the discharge pipe so as to communicate with the outside through the discharge pipe, the tail trim assembly of the vehicle exhaust system, characterized in that the first, second, third chamber is formed from the first baffle side. 제4항에 있어서, 제1,3 쳄버에는 흡음부재가 충진됨을 특징으로 하는 자동차 배기계의 테일 트림 조립체.5. The tail trim assembly of an automobile exhaust system according to claim 4, wherein the first and third chambers are filled with sound absorbing members.
KR1020060074841A 2006-08-08 2006-08-08 Tail trim assembly for vehicle KR101241189B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101676248B1 (en) * 2015-05-29 2016-11-16 현대자동차주식회사 Tail pipe for a car's muffler having multiple inner pipes
KR20200045109A (en) * 2018-10-22 2020-05-04 현대자동차주식회사 Exhaust tail trim for vehicle
CN111425289A (en) * 2020-05-22 2020-07-17 无锡威孚力达催化净化器有限责任公司 Structure for reducing noise of tail pipe and strengthening tail pipe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2741181B2 (en) * 1995-06-12 1998-04-15 藤壷技研工業株式会社 Car silencer
KR100279699B1 (en) 1996-12-31 2001-02-01 정몽규 Muffler of the car
KR200262396Y1 (en) * 1999-01-23 2002-03-18 임경빈 Exhaust sensibility venturi type muffler
KR20030008064A (en) * 2001-07-16 2003-01-24 주식회사 카튜너 Low noise tuning muffler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101676248B1 (en) * 2015-05-29 2016-11-16 현대자동차주식회사 Tail pipe for a car's muffler having multiple inner pipes
US9638087B2 (en) 2015-05-29 2017-05-02 Hyundai Motor Company Tailpipe for muffler of vehicle having multiple inner pipes
KR20200045109A (en) * 2018-10-22 2020-05-04 현대자동차주식회사 Exhaust tail trim for vehicle
CN111425289A (en) * 2020-05-22 2020-07-17 无锡威孚力达催化净化器有限责任公司 Structure for reducing noise of tail pipe and strengthening tail pipe

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