KR100412608B1 - Insulating structure of flexible pipe - Google Patents

Insulating structure of flexible pipe Download PDF

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Publication number
KR100412608B1
KR100412608B1 KR10-2001-0070069A KR20010070069A KR100412608B1 KR 100412608 B1 KR100412608 B1 KR 100412608B1 KR 20010070069 A KR20010070069 A KR 20010070069A KR 100412608 B1 KR100412608 B1 KR 100412608B1
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KR
South Korea
Prior art keywords
flexible pipe
exhaust system
aluminum foil
heat insulating
vibration
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Application number
KR10-2001-0070069A
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Korean (ko)
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KR20030039128A (en
Inventor
김영석
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현대자동차주식회사
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Priority to KR10-2001-0070069A priority Critical patent/KR100412608B1/en
Publication of KR20030039128A publication Critical patent/KR20030039128A/en
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Publication of KR100412608B1 publication Critical patent/KR100412608B1/en

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Classifications

    • 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
    • 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
    • F01N13/14—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 thermal insulation
    • 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
    • F01N13/16—Selection of particular 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/12—Tubes being corrugated
    • 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
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/22—Flexible elastomeric material

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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

본 발명의 목적은 단열 효과가 크게 증대되어 엔진룸내의 냉각성이 향상되며, 주변부품들의 열해를 방지하여 내구성을 높이며, 외관이 미려하여 상품성이 개선된 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조를 제공하는데 있다.The object of the present invention is to significantly increase the heat insulation effect to improve the cooling in the engine room, to prevent the thermal damage of the peripheral parts to increase the durability, the appearance is beautiful and improves the insulating property of the flexible pipe for vibration damping of the exhaust system improved productability To provide.

이를 위해 본 발명은 엔진의 진동이 배기계를 통해 차체에 전달되는 것을 차단하기 위하여 Ω형의 주름부를 구비하는 플렉시블 파이프에 있어서,To this end, the present invention is a flexible pipe having a pleated portion of the Ω in order to block the vibration of the engine is transmitted to the vehicle body through the exhaust system,

상기 주름부의 외주를 감싸는 알루미늄 호일과;An aluminum foil surrounding the outer circumference of the wrinkle part;

상기 알루미늄 호일의 외주를 감싸는 단열재와;A heat insulating material surrounding the outer circumference of the aluminum foil;

상기 단열재의 외주를 감싸는 직조철망;을 포함하여 구성되어 있다.It is configured to include; woven wire mesh surrounding the outer periphery of the insulation.

Description

배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열구조{Insulating structure of flexible pipe}Insulating structure of flexible pipe for vibration damping of exhaust system

본 발명은 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조 개선에관한 것이다.The present invention relates to the improvement of the thermal insulation structure of a flexible pipe for vibration damping of an exhaust system.

엔진에서 연소되어 배출되는 고온.고압의 배기가스는 배기계를 통해 외부로 배출되는데, 이를 그대로 대기로 배출하는 경우 큰 소음이 발생하기 때문에 도 3에 도시하는 것과 같이 배기파이프(20)의 도중에 머플러(21)를 장착하고 있다.The high-temperature, high-pressure exhaust gas discharged from the engine is discharged to the outside through the exhaust system, and when it is discharged to the atmosphere as it is, a large noise is generated, and thus a muffler (muffler) is formed in the middle of the exhaust pipe 20 as shown in FIG. 21) is attached.

그런데 배기파이프(20)는 엔진으로부터 차량 후방을 향해 일직선으로 배열되지 못하고 방향이 전환되게 되는데, 이는 실린더헤드 측면에 배기매니폴드가 접속되고, 다시 배기매니폴드에 배기파이프가 접속한 후 방향을 전환하여 차량 후방으로 연장되기 때문이다.However, the exhaust pipe 20 is not arranged in a straight line toward the rear of the vehicle from the engine, the direction is changed, which is the exhaust manifold is connected to the side of the cylinder head, the exhaust pipe is connected to the exhaust manifold and then the direction is changed This is because it extends to the rear of the vehicle.

이 때문에 배기파이프(20)의 방향이 전환되는 곳 및 배기압력과 온도를 낮추게 되므로써 배기 저항을 받게 되는 곳인 머플러(21) 주변에는 심한 진동이 발생할 수 있고, 특히 엔진의 진동이 배기파이프(20)를 통해 전달되어 다시 배기파이프(20)를 고정하고 있는 차체프레임(22)을 통해 차체에 전달되기 때문에 배기매니폴드에 가까운 배기파이프(20)의 전단에는 엔진의 진동을 차단하기 위하여 플렉시블 파이프(23, Flexible pipe)가 접속되어 있다.For this reason, severe vibrations may occur around the muffler 21 where the direction of the exhaust pipe 20 is switched and where the exhaust pressure and temperature are reduced, thereby causing vibration of the engine. Since it is transmitted to the vehicle body through the body frame 22 which is fixed through the exhaust pipe 20 is fixed to the exhaust pipe 20 close to the exhaust manifold in front of the flexible pipe 23 to block the vibration of the engine , Flexible pipe is connected.

이 플렉시블 파이프(23)는 신축성 있는 주름부(24)를 구비하고 있어, 엔진의 진동을 이 주름부(24)의 신축을 통하여 흡수하므로써 차체프레임(22)에 지지되는 후방의 머플러(21)측으로 진동이 전달되는 것을 차단하게 되는 것이다.The flexible pipe 23 has an elastic corrugation 24, and absorbs the vibration of the engine through the expansion and contraction of the corrugation 24 to the rear muffler 21 supported by the body frame 22. It will block the transmission of vibration.

그런데 이 플렉시블 파이프(23)는 Ω형상의 주름부(24)로 인하여 방열 면적이 크게 증대되어 고온의 배기가스열을 외부로 잘 방출하게 되므로써 플렉시블 파이프(23) 주변에 배설되는 전장품등에 열해를 입히게 되며, 특히 버스등과 같은 대형차의 경우 엔진룸의 온도를 상승시켜 엔진 냉각 성능을 저해하고 엔진룸내의 다른 부품들의 내구력을 저하시키게되는 요인이 되어 왔다.However, the flexible pipe 23 has a large heat dissipation area due to the Ω-shaped corrugations 24, and thus emits high-temperature exhaust gas heat to the outside, thereby causing damage to electrical appliances and the like disposed around the flexible pipe 23. In particular, in the case of a large car such as a bus, it has been a factor that increases the temperature of the engine room to hinder the engine cooling performance and lowers the durability of other parts in the engine room.

이와같은 문제점을 해소하기 위하여 플렉시블 파이프(23)의 외주를 단열재로 감싸고, 그물망(Braid)으로 감싸는 처리를 해오고 있으나, 주름부(24)의 골사이로 단열재가 밀려 들어가며 또 그물망 사이로 삐져 나오게 되어 단열재의 외면이 울퉁불퉁하게 되어 미관상 좋지 않아 상품성이 떨어지며 단열효과도 한계가 있어 개선의 필요성이 제기되어 왔다.In order to solve such a problem, the outer circumference of the flexible pipe 23 is wrapped with a heat insulating material, and has been processed to wrap with a braid. As the outer surface is uneven, it has a poor aesthetic appearance, which lowers the merchandise and has a limited insulation effect.

이에 본 발명은 상기한 점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은 단열 효과가 크게 증대되어 엔진룸내의 냉각성이 향상되며, 주변부품들의 열해를 방지하여 내구성을 높이며, 외관이 미려하여 상품성이 개선된 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above point, and its object is to greatly increase the heat insulation effect, to improve the cooling performance in the engine room, to prevent thermal damage of peripheral parts, to increase durability, and to enhance the appearance and merchandise. An insulating structure of a flexible pipe for vibration damping of an exhaust system is provided.

상기한 목적을 달성하기 위하여 본 발명은 엔진의 진동이 배기계를 통해 차체에 전달되는 것을 차단하기 위하여 Ω형의 주름부를 구비하는 플렉시블 파이프에 있어서,In order to achieve the above object, the present invention provides a flexible pipe having a pleated portion of the Ω to block the vibration of the engine is transmitted to the vehicle body through the exhaust system,

상기 주름부의 외주를 감싸는 알루미늄 호일과;An aluminum foil surrounding the outer circumference of the wrinkle part;

상기 알루미늄 호일의 외주를 감싸는 단열재와;A heat insulating material surrounding the outer circumference of the aluminum foil;

상기 단열재의 외주를 감싸는 직조철망;을 포함하여 구성되어 있다.It is configured to include; woven wire mesh surrounding the outer periphery of the insulation.

또 상기 직조철망의 내측으로 단열재의 외주를 알루미늄 호일이 감싸고 있으며, 상기 직조철망의 양단부는 클램프로서 접속부 외주에 고정되어 있다.In addition, an aluminum foil surrounds an outer circumference of the heat insulating material inside the woven wire mesh, and both ends of the woven wire mesh are fixed to the outer circumference of the connection portion as a clamp.

도 1은 본 발명에 의한 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조를 나타내는 도면1 is a view showing an insulating structure of a flexible pipe for vibration damping of an exhaust system according to the present invention

도 2는 동상 플렉시블 파이프의 A부 확대도2 is an enlarged view of part A of the in-phase flexible pipe

도 3은 종래의 배기계의 구조를 나타낸 도면3 is a view showing the structure of a conventional exhaust system

※ 도면의 주요 부분에 대한 부호의 설명※ Explanation of codes for main parts of drawing

1 : 플렉시블 파이프 2 : 주름부1: flexible pipe 2: crease

3,4 : 접속부 5 : 알루미늄 호일3,4 connection part 5 aluminum foil

6 : 단열재 7 : 알루미늄 호일6: insulation material 7: aluminum foil

8 : 직조철망 9 : 클램프8: woven wire mesh 9: clamp

10 : 볼트 11 : 골부분10 bolt 11: bone portion

12 : 공간(공기층)12: space (air layer)

이하 본 발명의 구성을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 의한 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조를 나타내는 도면이고, 도 2는 동상 플렉시블 파이프의 A부 확대도이다.1 is a view showing the heat insulation structure of the flexible pipe for vibration damping of the exhaust system according to the present invention, Figure 2 is an enlarged view of the A portion of the in-phase flexible pipe.

플렉시블 파이프(1)는 Ω형의 주름들이 연속하는 주름부(2)와, 그 주름부(2)의 양단으로 배기파이프에 접속되는 접속부(3)(4)를 구비하고 있다.The flexible pipe 1 is provided with the pleats 2 in which the pleats of the? Type are continuous, and the connecting portions 3 and 4 connected to the exhaust pipe at both ends of the pleats 2.

상기 주름부(2)의 외표면에는 0.2~1mm정도되는 얇은 두께의 알루미늄 호일(5)이 팽팽하게 감싸고 있으며, 그 알루미늄 호일(5)의 둘레는 다시 세라믹 화이너(Ceramic finer)로 되는 단열재(6)가 감싸고 있다.The outer surface of the wrinkle part 2 is wrapped in a thin aluminum foil (5) of about 0.2 ~ 1mm tightly, the aluminum foil (5) circumference is a heat insulating material (Ceramic finer) again ( 6) is wrapping.

그리고 또다시 단열재(6)의 외표면을 알루미늄 호일(7)로 감싼 후 직조철망(8)으로 감싸고 있다.The outer surface of the heat insulating material 6 is again wrapped with an aluminum foil 7 and then wrapped with a woven wire mesh 8.

상기한 알루미늄 호일(5)(7)을 비롯한 직조철망(8)의 양단은 상기 접속부(3)(4)까지 연장시킨 후 밴드부재로 형성되는 클램프(9)로 감싸 볼트(10)로 조여 고정시키고 있다.Both ends of the woven wire mesh 8 including the aluminum foils 5 and 7 are extended to the connecting portions 3 and 4, and then wrapped with a clamp 9 formed of a band member and tightened with bolts 10 to fix them. I'm making it.

이와같은 본 발명은 1차로 내측의 알류미늄 호일(5)에 의해 플렉시블 파이프(1)를 통과하는 배기가스로 부터 방사되는 열을 반사시켜 차단하게 되며, 특히 알루미늄 호일(5)과 골부분(11) 사이에 형성되는 공간(12)에 들어 있는 공기가 더욱 더 단열 기능을 향상시키게 된다.The present invention is primarily blocked by reflecting the heat radiated from the exhaust gas passing through the flexible pipe (1) by the inner aluminum foil (5), in particular the aluminum foil (5) and bone portion (11) The air contained in the space 12 formed therebetween will further improve the thermal insulation function.

또 알루미늄 호일(5)을 통해 바깥측으로 전도되는 열은 다시 단열재(6)에 의해서 차단되며, 또다시 단열재(6)의 외주를 감싼 알루미늄 호일(7)에 의해 차단된다.In addition, the heat conducted to the outside through the aluminum foil (5) is again blocked by the heat insulating material (6), and again by the aluminum foil (7) wrapped around the outer periphery of the heat insulating material (6).

여기서 주 단열기능은 단열재(6)와 공간(12)내의 공기층이 담당하게 되며, 단열재 양측의 알루미늄 호일(5)(7)은 단열재가 골부분(11)의 공간(12)내로 밀려들거나 또는 직조 철망(8)의 틈 사이를 통해 빠져나가 외표면 형상을 울퉁불퉁하게 만들어 미관을 저해하게 되는 현상을 차단하여 외관이 매끄럽게 유지되도록 기능한다.Here, the main insulation function is the air layer in the heat insulating material 6 and the space 12, the aluminum foil (5) (7) on both sides of the heat insulating material is pushed into the space 12 of the bone portion 11 or weave It escapes between the gaps of the wire mesh 8 to make the outer surface rugged to block the phenomenon of impairing the aesthetics, thereby maintaining a smooth appearance.

이상과 같은 본 발명에 의하면 엔진의 진동이 차체로 전달되는 것을 차단하기 위해 배기계에 접속되는 플렉시블 파이프의 주름부 외주를 단열재 및 그물망으로 감싸 단열함에 있어서, 단열재의 외표면을 알루미늄 호일로 감싸 처리하므로써 단열재가 주름부의 굴곡면과 그물망 사이로 밀려들고 삐져나가는 것을 방지하며, 이로부터 외관이 미려하게 되어 상품성이 높아져 엔진룸 내의 미관을 개선하게 되는 효과가 있으며, 또 이들 알루미늄 호일이 열 차단막으로서 기능하여 더욱 단열 효과를 향상시키게 되며, 특히 주름부와의 사이에 공기층이 형성되어 단열성이 크게 증대되는 효과가 있다.According to the present invention as described above, in order to insulate the outer periphery of the pleated portion of the flexible pipe connected to the exhaust system in order to block the transmission of the vibration of the engine to the vehicle body with a heat insulating material and a mesh, by wrapping the outer surface of the heat insulating material with aluminum foil It prevents the heat insulator from being pushed between the curved surface of the corrugated part and the mesh and from protruding. From this, the appearance is beautiful and the merchandise is enhanced, which improves the aesthetics in the engine room. Also, these aluminum foils function as heat shields. The heat insulation effect is improved, and in particular, an air layer is formed between the corrugations and the heat insulation is greatly increased.

Claims (5)

엔진의 진동이 배기계를 통해 차체에 전달되는 것을 차단하기 위하여 Ω형의 주름부를 구비하는 플렉시블 파이프에 있어서,In the flexible pipe having a Ω-type corrugation to block the vibration of the engine transmitted to the vehicle body through the exhaust system, 상기 주름부의 외주를 감싸는 알루미늄 호일과;An aluminum foil surrounding the outer circumference of the wrinkle part; 상기 알루미늄 호일의 외주를 감싸는 단열재와;A heat insulating material surrounding the outer circumference of the aluminum foil; 상기 단열재의 외주를 감싸는 직조철망;을 포함하여 구성되어 있는 것을 특징으로 하는 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조.Woven wire mesh surrounding the outer periphery of the insulation; heat insulation structure of the flexible pipe for vibration damping of the exhaust system, characterized in that it comprises a. 제 1 항에 있어서,The method of claim 1, 상기 직조 철망의 안쪽으로 단열재의 외주를 알루미늄 호일이 감싸고 있는 것을 특징으로 하는 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조.Insulation structure of a flexible pipe for vibration damping of the exhaust system, characterized in that the aluminum foil wraps the outer periphery of the heat insulating material to the inside of the woven wire mesh. 제 2 항에 있어서,The method of claim 2, 상기 단열재는 세라믹 화이버(Ceramic fiber)인 것을 특징으로 하는 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조.The heat insulating material is a heat insulating structure of a flexible pipe for vibration attenuation of the exhaust system, characterized in that the ceramic fiber (Ceramic fiber). 제 2 항에 있어서,The method of claim 2, 상기 직조철망의 양단부는 배기파이프에 접속되는 접속부의 외주에 클램프에 의해 고정되는 것을 특징으로 하는 배기계의 진동 감쇄를 위한 플렉시블 파이프의단열 구조.Both ends of the woven wire mesh is fixed to the outer periphery of the connecting portion connected to the exhaust pipe by a clamp, the insulating structure of the flexible pipe for vibration damping of the exhaust system. 제 4 항에 있어서,The method of claim 4, wherein 상기 클램프는 밴드부재로서 볼트를 체결하여 상기 접속부 외표면에 조여 붙이는 것을 특징으로 하는 배기계의 진동 감쇄를 위한 플렉시블 파이프의 단열 구조.The clamp is a heat insulating structure of a flexible pipe for vibration attenuation of the exhaust system, characterized in that the bolt is fastened to the outer surface of the connection by tightening the bolt as a band member.
KR10-2001-0070069A 2001-11-12 2001-11-12 Insulating structure of flexible pipe KR100412608B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100641392B1 (en) * 2004-12-03 2006-11-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Exhaust system of heavy equipments

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Publication number Priority date Publication date Assignee Title
CN105114162A (en) * 2015-09-08 2015-12-02 力帆实业(集团)股份有限公司 Motorcycle exhaust pipe heat insulating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100641392B1 (en) * 2004-12-03 2006-11-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Exhaust system of heavy equipments

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