KR20080050031A - Heat protector mounting structure for exhaust manifold - Google Patents

Heat protector mounting structure for exhaust manifold Download PDF

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Publication number
KR20080050031A
KR20080050031A KR1020060120758A KR20060120758A KR20080050031A KR 20080050031 A KR20080050031 A KR 20080050031A KR 1020060120758 A KR1020060120758 A KR 1020060120758A KR 20060120758 A KR20060120758 A KR 20060120758A KR 20080050031 A KR20080050031 A KR 20080050031A
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KR
South Korea
Prior art keywords
exhaust manifold
heat protector
fixing bolt
mounting structure
heat
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KR1020060120758A
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Korean (ko)
Inventor
박상준
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현대자동차주식회사
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Priority to KR1020060120758A priority Critical patent/KR20080050031A/en
Publication of KR20080050031A publication Critical patent/KR20080050031A/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
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds 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
    • F01N13/18—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
    • F01N13/1822—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 for fixing exhaust pipes or devices to vehicle body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation

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

Abstract

A structure for mounting a heat protector at an engine exhaust manifold is provided to improve the endurance of a coupling section of a heat protector by preventing vibration from being directly transferred from an exhaust manifold to the heat protector. A structure for mounting a heat protector at an engine exhaust manifold comprises elastic members(12,14) positioned at the inner and outer portions of a heat protector(4). The heat protector is fixed to a boss(6) that protrudes from an exhaust manifold. A column(24) is interposed between a fixing bolt(10) and the elastic members such that the elastic members is not in direct contact with the fixing bolt. A retainer(28) is interposed between a head section(26) of the fixing bolt and the column such that the elastic members maintain elastic force thereof. Each elastic member includes a spring made of a conical cylinder member.

Description

엔진 배기 매니폴드의 히트 프로텍터 장착 구조{HEAT PROTECTOR MOUNTING STRUCTURE FOR EXHAUST MANIFOLD}Heat protector mounting structure for engine exhaust manifold {HEAT PROTECTOR MOUNTING STRUCTURE FOR EXHAUST MANIFOLD}

도 1은 본 발명에 의하여 히트 프로텍터를 장착한 상태를 보인 도면.1 is a view showing a state equipped with a heat protector according to the present invention.

도 2는 본 발명의 요부 확대 단면도.2 is an enlarged cross-sectional view of the main portion of the present invention.

도 3은 종래 히트 프로텍터의 장착상태를 보인 도면.3 is a view showing a mounting state of a conventional heat protector.

본 발명은 자동차 엔진 배기 매니폴드의 히트 프로텍터 장착 구조에 관한 것으로서, 보다 상세하게는 장착 후 엔진의 진동에 의하여 체결공에 발생되는 균열을 근본적으로 해결할 수 있도록 한 엔진 배기 매니폴드의 히트 프로텍터 장착 구조에 관한 것이다.The present invention relates to a heat protector mounting structure of an automobile engine exhaust manifold, and more particularly, to a heat protector mounting structure of an engine exhaust manifold, which can fundamentally solve a crack generated in a fastening hole by vibration of an engine after mounting. It is about.

자동차 엔진에 있어서의 배기 매니폴드는 다수 실린더의 연소실로부터 배출되는 배기가스를 한데 모아 배기 파이프로 유도하기 위한 것으로서, 실린더 헤드의 일측으로 관통되는 배기포트와 연결된다.An exhaust manifold in an automobile engine is for guiding exhaust gas discharged from a combustion chamber of a plurality of cylinders into a exhaust pipe, and is connected to an exhaust port penetrating to one side of a cylinder head.

이러한 배기 매니폴드로 입력되는 배기가스는 대략 600 ∼ 900℃ 정도의 고온으로서 상기 배기 매니폴드의 후방에 접속되는 촉매 컨버터, 배기 파이프 및 소 음기등을 통과하여 대기로 배출되는 바, 상기 배기 매니폴드를 비롯한 배기계의 외측으로는 상당한 수준의 열이 발산된다.The exhaust gas inputted to the exhaust manifold is discharged to the atmosphere through a catalytic converter, an exhaust pipe and a silencer connected to the rear of the exhaust manifold at a high temperature of about 600 to 900 ° C. Significant levels of heat are dissipated outside of the exhaust system, including.

그리고 상기 배기 매니폴드의 외측에는 배기 매니폴드로부터 발산되는 열이 엔진의 주변장치에 열해를 가하는 것을 방지하기 위한 수단으로 히트 프로텍터(HEAT PROTECTOR)가 장착된다.A heat protector is mounted to the outside of the exhaust manifold to prevent heat from the exhaust manifold from damaging the peripheral device of the engine.

이러한 히트 프로텍터를 배기 매니폴드에 장착함에 있어서 종래에는 도 3에서와 같이, 히트 프로텍터(100)를 플랜지 볼트(102)를 이용하여 배기 매니폴드(104)에 장착하고 있다.In attaching such a heat protector to the exhaust manifold, the heat protector 100 is conventionally attached to the exhaust manifold 104 using the flange bolt 102 as shown in FIG.

보다 구체적으로는 배기 매니폴드(104)에 보스(106)를 돌출 형성하고, 상기 보스(106)에 볼트 공을 형성한 뒤, 상기 히트 프로텍터(100)를 정위치 시키고, 그 위치로부터 보스(106)의 볼트 공에 플랜지 볼트(102)를 삽입 체결함으로써, 히트 프로텍터(100)를 장착하였다.More specifically, the boss 106 is protruded from the exhaust manifold 104, the bolt ball is formed in the boss 106, and then the heat protector 100 is correctly positioned and the boss 106 is positioned from the position. The heat protector 100 was attached by inserting and fastening the flange bolt 102 to the bolt hole of the).

그러나 상기와 같이 히트 프로텍터를 장착하면 초기에는 장착 상태가 견고하게 유지되지만, 배기 매니폴드의 기능 및 위치적 특성(열 및 진동 부하)상 상기 플랜지 볼트의 이완이 발생됨은 됨은 물론 상기 플랜지 볼트의 관통을 위하여 형성된 체결공 주위에 균열이 발생되어 이에 따른 문제점이 발생된다.However, when the heat protector is mounted as described above, the mounting state is firmly maintained initially, but the flange bolt is loosened due to the function and positional characteristics (heat and vibration load) of the exhaust manifold, as well as the penetration of the flange bolt. A crack is generated around the fastening hole formed for the purpose of causing a problem.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로서, 본 발명의 목적은엔진의 진동을 효과적으로 흡수하여 장착 후 체결부 주위에 발생되는 균열을 근본적으로 방지할 수 있도록 한 엔진 배기 매니폴드의 히트 프로텍터 장착 구조를 제공함에 있다.Therefore, the present invention has been invented to solve the above problems, the object of the present invention is to effectively absorb the vibration of the engine to prevent the cracks generated around the fastening portion after the installation of the engine exhaust manifold It is to provide a heat protector mounting structure.

이를 실현하기 위하여 본 발명은, 배기 매니폴드에서 소정길이로 돌출 형성되는 보스에 히트 프로텍터를 고정볼트로 체결 고정하는 히트 프로텍터의 장착 구조에 있어서, In order to realize this, the present invention, in the mounting structure of the heat protector for fastening and fixing the heat protector with a fixed bolt to the boss protruding to a predetermined length from the exhaust manifold,

상기 히트 프로텍터의 내,외측부에 위치하는 탄성부재와; 상기 탄성부재와 고정 볼트가 직접적으로 접촉되는 않도록 고정볼트와 상시 탄성부재 사이에 개재되는 컬럼과; 상기 탄성부재의 탄성력을 유지시킬 수 있도록 상기 고정볼트의 머리부와 컬럼 사이에 개재되는 리테이너를 포함하여 이루어지는 엔진 배기 매니폴드의 히트 프로텍터 장착구조를 제공한다. An elastic member positioned inside and outside the heat protector; A column interposed between the fixing bolt and the elastic member so that the elastic member and the fixing bolt are not in direct contact; It provides a heat protector mounting structure of the engine exhaust manifold comprising a retainer interposed between the head and the column of the fixing bolt to maintain the elastic force of the elastic member.

이하, 상기의 목적을 구체적으로 실현할 수 있는 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described in detail.

도 1은 본 발명에 의하여 히트 프로텍터를 장착한 상태를 외관도이고, 도2는 본 발명의 요부 발췌 단면도로서, 부호 2는 배기 매니폴드를 지칭한다.1 is an external view of a state in which a heat protector is mounted according to the present invention, and FIG. 2 is a cross-sectional view of an essential part of the present invention, and 2 denotes an exhaust manifold.

상기 배기 매니폴드(2)에는 히트 프로텍터(4)와 체결할 위치마다 원기둥형의 보스(6)가 돌출 형성되고, 이의 보스(6)의 중심부에는 볼트 공(8)이 형성된다.A cylindrical boss 6 protrudes from the exhaust manifold 2 at each position to be engaged with the heat protector 4, and a bolt hole 8 is formed at the center of the boss 6.

그리고 상기 보스(6)에 히트 프로텍터(4)를 고정 볼트(10)로 체결함에 있어서, 본 발명은 히트 프로텍트(4)의 내,외면에 탄성부재(12)(14)를 개재시켜 체결하였다.In the fastening of the heat protector 4 to the boss 6 with the fixing bolt 10, the present invention is fastened by interposing the elastic members 12 and 14 on the inner and outer surfaces of the heat protector 4.

상기에서 탄성부재(12)(14)는 원추형 원통부재로 이루어지는 스프링으로서, 대직경부에 수평면을 갖도록 외측으로 절곡되는 받침부(16)(18)를 형성하고, 소직경부에도 수평면을 갖도록 내측으로 절곡되는 받침부(20)(22)를 형성하였다.In the above, the elastic members 12 and 14 are springs formed of conical cylindrical members, and form support portions 16 and 18 that are bent outwardly to have a horizontal surface in a large diameter portion, and bend inward to have a horizontal surface in the small diameter portion. To form the supporting portion (20, 22).

그리고 상기 대직경부의 받침부(16)(18)가 히터 프로텍터(4)에 접촉되도록 한 상태에서 고정볼트(10)를 체결하되, 고정 볼트(10)의 체결시 축력이 탄성부재(12)(14)에 직접적으로 출력이 전달되지 않도록 하기 위하여 고정볼트(10)와 탄성부재(12)(14)의 소직경부 사이에 컬럼(Column,24)을 배치하고, 상기 고정 볼트(10)의 머리부(26)와 상기 컬럼(24)의 상단부 사이에 배치되어 상기 탄성부재(12)(14)의 탄성력을 유지시켜 주는 리테이너(28)를 배치하였다.And while fastening the fixing bolt 10 in a state in which the support portion 16, 18 of the large diameter portion is in contact with the heater protector 4, the axial force is the elastic member 12 ( 14, a column 24 is disposed between the fixing bolt 10 and the small diameter portion of the elastic member 12 and 14 so that the output is not directly transmitted to the output bolt, and the head of the fixing bolt 10 is disposed. A retainer 28 is disposed between the 26 and the upper end of the column 24 to maintain the elastic force of the elastic members 12 and 14.

이를 위하여 상기 컬럼(24)은 하측에 원판부재(30)를 두고 그 중앙에 원통부재(32)가 세워져 상기 원판부재(30)가 보스(6)의 단부에 위치하게 된다.To this end, the column 24 has a disc member 30 at the lower side and a cylindrical member 32 is erected at the center thereof so that the disc member 30 is positioned at the end of the boss 6.

또한 상기 컬럼(24)의 원통부재(32) 외경은 탄성부재(12)(14)의 소직경부 받침부(20)(22)의 내경부로 삽입될 수 있도록 형성되며, 상기 리테이너(28)는 대략 원판형 부재로 이루어지게 된다.In addition, the outer diameter of the cylindrical member 32 of the column 24 is formed to be inserted into the inner diameter portion of the small diameter portion support portion 20, 22 of the elastic member 12, 14, the retainer 28 is It is made up of an approximately disk-shaped member.

이에 따라 본 발명에 의하여 히트 프로텍터(4)를 체결하는 경우에는 도 2와 같은 단면의 체결구조를 갖게 되며, 배기 매니폴드(2)로부터 전달되는 진동이 컬럼(24)과 양 탄성부재(12)(14)를 거치면서 절연되어 히트 프로텍터(4)에는 직접적으로 전달되지 않음으로써, 히트 프로텍터(4) 체결부의 내구성을 크게 향상시킬 수 있게 되는 것이다.Accordingly, when the heat protector 4 is fastened according to the present invention, it has a fastening structure having a cross section as shown in FIG. 2, and vibrations transmitted from the exhaust manifold 2 are transferred to the column 24 and both elastic members 12. Since it is insulated while passing through (14) and is not directly transmitted to the heat protector 4, it is possible to greatly improve the durability of the fastening portion of the heat protector 4.

이상에서와 같이 본 발명에 의하면, 히트 프로텍터와 배기 매니폴드 사이에 탄성부재를 개재시켜 히트 프로턱터를 배기 매니폴드에 체결함으로써, 배기 매니폴드에서 오는 진동 절연 효과에 의하여 히트 프로텍터 체결부 주위에 발생되는 균열을 근본적으로 방지할 수 있도록 한 발명인 것이다.As described above, according to the present invention, by coupling the heat productor to the exhaust manifold with an elastic member interposed between the heat protector and the exhaust manifold, it is generated around the heat protector fastening portion by vibrating insulation effect from the exhaust manifold. It is an invention to fundamentally prevent cracks that become.

Claims (3)

배기 매니폴드에서 소정길이로 돌출 형성되는 보스에 히트 프로텍터를 고정볼트로 체결 고정하는 히트 프로텍터의 장착 구조에 있어서, In the mounting structure of the heat protector for fastening and fixing the heat protector with a fixing bolt to the boss protruding from the exhaust manifold to a predetermined length, 상기 히트 프로텍터의 내,외측부에 위치하는 탄성부재와;An elastic member positioned inside and outside the heat protector; 상기 탄성부재와 고정 볼트가 직접적으로 접촉되는 않도록 고정볼트와 상시 탄성부재 사이에 개재되는 컬럼과;A column interposed between the fixing bolt and the elastic member so that the elastic member and the fixing bolt are not in direct contact; 상기 탄성부재의 탄성력을 유지시킬 수 있도록 상기 고정볼트의 머리부와 컬럼 사이에 개재되는 리테이너를 포함하여 이루어짐을 특징으로 하는 엔진 배기 매니폴드의 히트 프로텍터 장착구조.Heat retainer mounting structure of the engine exhaust manifold comprising a retainer interposed between the head and the column of the fixing bolt to maintain the elastic force of the elastic member. 제1항에 있어서, 탄성부재는 원추형 원통부재로 이루어지는 스프링으로서, 대직경부에 수평면을 갖도록 외측으로 절곡되는 받침부를 형성하고, 소직경부에 수평면을 갖도록 내측으로 절곡되는 받침부를 형성하여 상기 대직경부의 받침부가 히터 프로텍터에 접촉된 상태로 조립됨을 특징으로 하는 엔진 배기 매니폴드의 히트 프로텍터 장착구조.The method of claim 1, wherein the elastic member is a spring consisting of a cylindrical member, the large diameter portion to form a support portion that is bent outward to have a horizontal plane, and the small diameter portion to form a support portion bent inward to have a horizontal plane portion of the large diameter portion Heat protector mounting structure of the engine exhaust manifold, characterized in that the support is assembled in contact with the heater protector. 제1항에 있어서, 컬럼은 하측에 원판부재를 두고 그 중앙에 원통부재가 세워지는 형태로 이루어져 상기 원판부재가 보스의 단부와 면접된 상태에서 원통부재가 탄성부재의 중앙부를 관통하는 형태로 조립됨을 특징으로 하는 엔진 배기 매니폴드 의 히트 프로텍터 장착 구조.The method of claim 1, wherein the column has a disk member on the lower side and a cylindrical member is erected in the center thereof, and the cylindrical member is assembled in a form in which the cylindrical member penetrates the center of the elastic member while the disk member is interviewed with the end of the boss. Heat protector mounting structure of an engine exhaust manifold.
KR1020060120758A 2006-12-01 2006-12-01 Heat protector mounting structure for exhaust manifold KR20080050031A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200447395Y1 (en) * 2008-02-29 2010-01-25 (주)마이크로컨텍솔루션 Structure for A heat protector fixing unit
KR101428267B1 (en) * 2012-12-11 2014-08-07 현대자동차주식회사 Apparatus for holding heat protector with preventing from vibration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200447395Y1 (en) * 2008-02-29 2010-01-25 (주)마이크로컨텍솔루션 Structure for A heat protector fixing unit
KR101428267B1 (en) * 2012-12-11 2014-08-07 현대자동차주식회사 Apparatus for holding heat protector with preventing from vibration

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