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KR101443305B1 - exhaust silencer for offset interference type - Google Patents

exhaust silencer for offset interference type Download PDF

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KR101443305B1
KR101443305B1 KR1020130114613A KR20130114613A KR101443305B1 KR 101443305 B1 KR101443305 B1 KR 101443305B1 KR 1020130114613 A KR1020130114613 A KR 1020130114613A KR 20130114613 A KR20130114613 A KR 20130114613A KR 101443305 B1 KR101443305 B1 KR 101443305B1
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section
sound absorbing
cylindrical
absorbing member
sound
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Korean (ko)
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김중곤
최호경
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(주)지브텍
김중곤
최호경
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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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning 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
    • F01N13/16—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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like

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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

본발명은 상쇄간섭형 배기소음기에 관한 것으로, 상쇄간섭형 배기소음기에 있어서, 상기 상쇄간섭형 배기소음기는 원통형 외부케이스(10)와, 상기 외부케이스(10) 내부에 동심원상으로 설치되는 원통형 흡음부재(20)로 이루어지되, 상기 흡음부재(20)는 엔진 배기가스가 유입되는 입구방향으로부터 제1구간(21), 제2구간(22), 제3구간(23)의 3개로 길이방향으로 분할되며, 각각의 분할구간 사이는 흡음부재가 없으며, 또한 원통형 흡음부재 중앙부에는 원통형 파이프(30)가 길이방향으로 설치되는 것으로,
본발명은 엔진 배기닥트의 고주파소음외에도 저주파소음도 간단하고 효과적으로 제거할 수 있어서 전체적으로 소음을 저감할 수 있는 현저한 효과가 있다.A canceling type exhaust silencer according to the present invention is a canceling type exhaust silencer wherein the canceling type exhaust silencer comprises a cylindrical outer case (10), and a cylindrical sound absorbing ring disposed concentrically inside the outer case Wherein the sound absorbing member 20 is divided into three sections of the first section 21, the second section 22 and the third section 23 from the inlet direction in which the engine exhaust gas flows in the longitudinal direction And a cylindrical pipe 30 is installed in the longitudinal direction at the center of the cylindrical sound absorbing member,
In addition to the high-frequency noise of the engine exhaust duct, low-frequency noise can also be removed simply and effectively, thereby remarkably reducing the overall noise.

Description

상쇄간섭형 배기소음기{exhaust silencer for offset interference type}[0001] The present invention relates to an exhaust silencer for offset interference type,

본발명은 상쇄간섭형 배기소음기에 관한 것으로, 보다 상세하게는 엔진의 배기닥트(배기관)에 발생하는 소음, 특히 저주파소음을 용이하게 제거할 수 있는 상쇄간섭형 배기소음기에 관한 것이다.The present invention relates to a destructive interference type exhaust silencer, and more particularly, to a destructive interference type exhaust silencer capable of easily removing noise (particularly, low-frequency noise) generated in an exhaust duct (exhaust pipe) of an engine.

일반적으로 엔진 배기 덕트의 소음을 감소하기 위하여 배기 덕트 내부에 소음기를 설치하며, 이러한 소음기의 일례로서, 특허등록공보 등록번호 10-0735689호에는 덕트에 설치하여 소음을 흡음시키는 공조 덕트용 소음기에 있어서, 내측에 부재공간부가 형성되고, 일단부에 스프리터부재 상호간에 결합되는 부재끼움부가 형성되며, 타단부에 단부캡이 결합되는 캡끼움부가 형성되는 스프리터부재; 상기 캡끼움부에 결합되어 음의 진행방향을 유도하는 단부캡; 및 상기 부재공간부에 충진되어 음을 흡수하는 흡음재를 포함하여 이루어지고, 상기 스프리터부재와 단부캡은 결합된 상태에서, 사이사이에 간격을 두고 적층되어 공명음을 흡음하며, 상기 소음기는 스프리터부재에 조립공이 관통되고, 조립공을 이용하여 조립구에 의해 덕트에 조립되는 것을 특징으로 하는 공조 덕트용 소음기가 공개되어 있다.Generally, a muffler is installed in the exhaust duct to reduce noise of the engine exhaust duct. As an example of such a muffler, Patent Registration No. 10-0735689 discloses a muffler for an air duct to be installed in a duct to absorb noise A splitter member having a member space formed on an inner side thereof, a member fitting part formed on one end thereof to be engaged with the splitter members, and a cap fitting part having an end cap coupled to the other end; An end cap coupled to the cap fitting portion to induce a negative going direction; And a sound absorbing material filled in the member space portion and absorbing sound, wherein the splitter member and the end cap are stacked with a gap therebetween in a state of being engaged to sound a resonance sound, And an assembling hole is used to assemble the duct to the duct by means of an assembling hole.

또한, 등록특허공보 등록번호 10-0935101호에는 공기유입구와 공기배출구가 관통되어 형성된 덕트와, 상기 덕트의 내부에 고정 간격을 두고 다수개로 설치되는 스프리터로 구성되고, 상기 스프리터는 일측은 넓고 타측은 좁은 삼각형 형상으로 형성된 다공판과 상기 다공판의 내부에 설치되는 천부재와 상기 천부재의 내부에 충진되는 흡음재로 구성되어 덕트의 내부에 지그재그 형태로 설치되는 소음기에 있어서, 상기 덕트의 공기유입구와 공기배출구의 단부에 각각 결합되는 유입구측레듀사와 배출구측 레듀사의 내부에도 삼각형 형상의 스프리터가 설치되는 것을 특징으로 하는 공조 덕트용 V형 소음기가 공개되어 있다.In addition, in the registered patent publication No. 10-0935101, there is a duct formed by penetrating an air inlet and an air outlet, and a plurality of splitters provided at fixed intervals in the duct, wherein the one side is wide, A muffler comprising a perforated plate formed in a narrow triangular shape, a ceiling member disposed inside the perforated plate, and a sound absorbing material filled in the ceiling member, the muffler being installed in a zigzag form in the duct, A V-shaped silencer for a ventilation duct is disclosed in which a triple-shaped splitter is installed in the interior of the inlet-side radyer and the outlet-side radyer respectively coupled to the end of the air outlet.

그러나 상기 종래기술들은 공조닥트에 발생하는 고주파소음은 흡수하여 감소시킬 수 있으나, 저주파소음을 제거하는 수단은 미비한 실정이었다.However, the conventional techniques can absorb and reduce the high frequency noise generated in the air conditioning duct, but the means for removing the low frequency noise is insufficient.

따라서 본발명은 상기와 같은 문제점을 해결하고자 안출된 것으로, 엔진 배기닥트(배기관)의 고주파소음외에도 저주파소음도 간단하고 효과적으로 제거할 수 있어서 전체적으로 소음을 저감할 수 있는 상쇄간섭형 소음기를 제공하고자 하는 것이다.SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a canceling-type muffler which can reduce noise entirely in addition to high-frequency noise of an engine exhaust duct (exhaust pipe) .

본발명은 상쇄간섭형 소음기에 관한 것으로, 상쇄간섭형 소음기에 있어서, 상기 상쇄간섭형 소음기는 원통형 외부케이스(10)와, 상기 외부케이스(10) 내부에 동심원상으로 설치되는 원통형 흡음부재(20)로 이루어지되, 상기 흡음부재(20)는 엔진 배기가스가 유입되는 입구방향으로부터 제1구간(21), 제2구간(22), 제3구간(23)의 3개로 길이방향으로 분할되며, 각각의 분할구간 사이는 흡음부재가 없으며, 또한 원통형 흡음부재 중앙부에는 원통형 파이프(30)가 길이방향으로 설치되는 것을 특징으로 한다.The canceling type silencer includes a cylindrical outer case (10), a cylindrical sound absorbing member (20) provided concentrically inside the outer case (10), and a canceling type silencer Wherein the sound absorbing member 20 is longitudinally divided into three portions of a first section 21, a second section 22 and a third section 23 from an inlet direction in which engine exhaust gas flows, And a cylindrical pipe (30) is installed in the longitudinal direction at the center of the cylindrical sound absorbing member.

따라서 본발명은 엔진 배기닥트(배기관)의 고주파소음외에도 저주파소음도 간단하고 효과적으로 제거할 수 있어서 전체적으로 소음을 저감할 수 있는 현저한 효과가 있다.Therefore, the present invention can remarkably reduce the overall noise by simply and effectively removing the low-frequency noise in addition to the high-frequency noise of the engine exhaust duct (exhaust pipe).

도 1은 본발명 상쇄간섭형 소음기 외관도
도 2는 본발명 상쇄간섭형 소음기 단면도
도 3은 본발명 상쇄간섭형 소음기 측면도
도 4는 본발명 상쇄간섭형 소음기 흡음부재 단면도FIG. 1 is a perspective view showing the appearance of the canceling-
2 is a cross-sectional side view of a silencer of the present invention
3 is a side view of the canceling interference silencer of the present invention
4 is a cross-sectional view of the canceling absorber member of the present invention,

본발명은 상쇄간섭형 소음기에 관한 것으로, 상쇄간섭형 소음기에 있어서, 상기 상쇄간섭형 소음기는 원통형 외부케이스(10)와, 상기 외부케이스(10) 내부에 동심원상으로 설치되는 원통형 흡음부재(20)로 이루어지되, 상기 흡음부재(20)는 배기가스가 유입되는 입구방향으로부터 제1구간(21), 제2구간(22), 제3구간(23)의 3개로 길이방향으로 분할되며, 각각의 분할구간 사이는 흡음부재가 없으며, 또한 원통형 흡음부재 중앙부에는 원통형 파이프(30)가 길이방향으로 설치되는 것을 특징으로 한다.The canceling type silencer includes a cylindrical outer case (10), a cylindrical sound absorbing member (20) provided concentrically inside the outer case (10), and a canceling type silencer Wherein the sound absorbing member 20 is divided in the longitudinal direction into three portions of a first section 21, a second section 22 and a third section 23 from the inlet direction in which the exhaust gas flows, And a cylindrical pipe 30 is installed in the longitudinal direction at the center of the cylindrical sound absorbing member.

또한, 상기 흡음부재(20)는 금속재질의 타공판(24), 유리섬유(25) 및 내열흡음재(26)가 소음기 내부로부터 외부방향으로 순차적으로 결합되는 것을 특징으로 한다.
The sound absorbing member 20 is characterized in that the perforated plate 24, the glass fiber 25 and the heat resistant sound absorbing material 26 of metal are sequentially coupled outwardly from the inside of the silencer.

본발명을 첨부도면에 의해 상세히 설명하면 다음과 같다. 도 1은 본발명 상쇄간섭형 소음기 외관도, 도 2는 본발명 상쇄간섭형 소음기 단면도, 도 3은 본발명 상쇄간섭형 소음기 측면도, 도 4는 본발명 상쇄간섭형 소음기 흡음부재 단면도이다.
The present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of a destructive interference type silencer according to the present invention, FIG. 2 is a cross sectional view of a silencer of the present invention, FIG. 3 is a side view of the present silence canceling type silencer, and FIG.

본발명 상쇄간섭형 배기소음기는 소음저감용으로 사용되며, 특히 엔진과 연결되는 배기닥트(배기관) 중간에 설치되어, 엔진으로부터 발생되는 배기가스 소음을 감소시킨다.The destructive interference type muffler of the present invention is used for noise reduction, and is installed in the middle of an exhaust duct (exhaust pipe) connected to the engine in particular to reduce the exhaust gas noise generated from the engine.

그리고 상기 상쇄간섭형 배기소음기는 원통형 외부케이스(10)와, 상기 외부케이스(10) 내부에 동심원상으로 설치되는 원통형 흡음부재(20)로 이루어진다. 상기 흡음부재(20)는 금속재질의 타공판(24), 유리섬유(25) 및 내열흡음재(26)가 소음기 내부로부터 외부방향으로 순차적으로 결합되어, 상기 타공판에 형성되는 구멍들에 의해 소음이 감소된다. 유리섬유 및 내열흡음재 역시 소음재질로 알려진 것을 사용하는 것으로, 소음을 흡수하여 전체적으로 소음이 감소되게 되는 것이다.
그리고 원통형 외부케이스는 카본스틸, 스텐레스스틸과 같은 금속을 사용하여 제작한다.The destructive interference type muffler comprises a cylindrical outer case 10 and a cylindrical sound absorbing member 20 installed concentrically inside the outer case 10. The sound absorbing member 20 is formed by sequentially joining the perforated plate 24, the glass fiber 25 and the heat absorbing material 26 outwardly from the inside of the silencer so that noise is reduced by the holes formed in the perforated plate do. Glass fiber and heat-resistant sound-absorbing material are also known as noise materials, so that noise is absorbed and noise is reduced as a whole.
The cylindrical outer case is made of metal such as carbon steel or stainless steel.

한편, 상기 흡음부재(20)는 엔진 배기가스가 유입되는 입구방향으로 부터 제1구간(21), 제2구간(22), 제3구간(23)의 3개로 길이방향으로 분할된다. 특히 제2구간(22)은 제2-1구간(22-1) 및 제2-2구간(22-2)으로 나누어지되, 도면에 도시된 바와 같이, 고리모양 닥트를 용접 등에 의해 붙여서 제작하는 것이다.The sound absorbing member 20 is longitudinally divided into three sections, that is, a first section 21, a second section 22, and a third section 23 from the inlet direction of the engine exhaust gas. Particularly, the second section 22 is divided into a 2-1 section 22-1 and a 2-2 section 22-2. As shown in the figure, the annular duct is manufactured by welding or the like will be.

그리고 각각의 분할구간 사이는 흡음부재가 없고 외부케이스만이 설치된다. 분할구간은 제1분할구간(27), 제2분할구간(28), 제3분할구간으로 나눌 수 있다.There is no sound absorbing member between each divided section, and only the outer case is installed. The division section may be divided into a first division section 27, a second division section 28, and a third division section.

또한 원통형 흡음부재 중앙부에는 원통형 파이프(30)가 길이방향으로 설치되며 외부케이스 양단으로는 결합을 위한 플랜지가 각각 형성된다.Further, a cylindrical pipe 30 is provided in the longitudinal direction at the central portion of the cylindrical sound absorbing member, and flanges are formed at both ends of the outer case for coupling.

본발명 상쇄간섭형 배기소음기의 각구간의 길이를 비율로 나타내면, 제1구간, 제1분할구간, 제2-1구간, 제2-2구간, 제2분할구간, 제3구간의 길이비율은The ratio of lengths of the first section, the first section, the second section, the second section, the second section, and the third section may be expressed as a ratio of the length of each section of the destructive interference type exhaust silencer of the present invention,

1 : 1/2 : 2 : 1/3 : 1/2 : 2/3이 되며, 이와 같은 길이비율을 설계할 경우 제1, 2, 3구간 모두에 흡음재질에 의한 소음감소가 이루어져서 소음, 특히 고주파 소음을 감소시키며, 특히 제2구간에서는 음파가 상쇄간섭이 발생하여 저주파소음까지 감소시키게 된다. 제2-1구간은 체적이 가장 크고 극저주파를 잡고, 제2-2구간은 중저주파를 잡는다.
1: 1/2: 2: 1/3: 1/2: 2/3. When the length ratio is designed, the noise is reduced by the sound absorbing material in the first, second and third sections, In particular, in the second section, a sound wave is canceled by interference, thereby reducing low frequency noise. Section 2-1 has the largest volume and holds the extremely low frequency, and the 2-2 section holds the medium low frequency.

따라서 본발명은 엔진 배기닥트(배기관)의 고주파소음외에도 저주파소음도 간단하고 효과적으로 제거할 수 있어서 전체적으로 소음을 저감할 수 있는 현저한 효과가 있다.Therefore, the present invention can remarkably reduce the overall noise by simply and effectively removing the low-frequency noise in addition to the high-frequency noise of the engine exhaust duct (exhaust pipe).

10 : 외부케이스 20 : 흡음부재
21 : 제1구간 22 : 제2구간
22-1 : 제2-1구간 22-2 : 제2-2구간
23 : 제3구간 24 : 타공판
25 : 유리섬유 26 : 내열흡음재
27 : 제1분할구간 28 : 제2분할구간
30 : 파이프 70 : 플랜지10: outer case 20: sound-absorbing member
21: first section 22: second section
22-1: Section 2-1 Section 22-2: Section 2-2
23: third section 24:
25: glass fiber 26: heat-absorbing material
27: first divided section 28: second divided section
30: pipe 70: flange

Claims (2)

원통형 외부케이스(10)와, 상기 외부케이스(10) 내부에 동심원상으로 설치되는 원통형 흡음부재(20)로 이루어지되, 상기 흡음부재(20)는 공기가 유입되는 입구방향으로부터 제1구간(21), 제2구간(22), 제3구간(23)의 3개로 길이방향으로 분할되어 각각의 구간에서 소음을 상쇄시키며, 상기 제1구간(21)과 제2구간(22) 사이는 제1분할구간(27)이 형성되고 제2구간(22)과 제3구간(23) 사이는 제2분할구간(28)이 형성되되, 흡읍부재가 없으며, 상기 원통형 흡음부재(20) 중앙부에는 원통형 흡음파이프(30)가 길이방향으로 설치되는 상쇄간섭형 배기소음기에 있어서,
상기 제2구간(22)은 제2-1구간(22-1) 및 제2-2구간(22-2)으로 나누어지며, 상기 흡음부재(20)는 금속재질의 타공판(24), 유리섬유(25)및 내열흡음재(26)가 소음기 내부로부터 외부방향으로 순차적으로 결합되는 것이며,
상기 제1구간(21), 제1분할구간(27), 제2-1구간(22-1), 제2-2구간(22-2), 제2분할구간(28), 제3구간(23)의 길이비율은 1 : 1/2 : 2 : 1/3 : 1/2 : 2/3이 되는 것으로, 상기 제1, 2, 3구간 모두에 흡음재질에 의한 소음감소가 이루어져서 고주파 소음을 감소시키되, 상기 제2구간에서는 음파가 상쇄간섭이 발생하여 저주파소음까지 감소시키게 되고, 상기 제2-1구간은 체적이 가장 크고 극저주파를 잡고, 상기 제2-2구간은 중저주파를 잡는 것을 특징으로 하는 상쇄간섭형 배기소음기And a cylindrical sound absorbing member 20 installed concentrically inside the outer case 10, wherein the sound absorbing member 20 has a first section 21 The first section 21 and the second section 22 are divided into three sections, that is, the first section 22, the second section 22, and the third section 23, A second division section 28 is formed between the second section 22 and the third section 23 and no suction port is provided and a cylindrical sound absorption component 20 is provided at the center of the cylindrical sound absorption member 20, In a canceling type exhaust muffler in which a pipe (30) is installed in the longitudinal direction,
The second section 22 is divided into a 2-1 section 22-1 and a 2-2 section 22-2. The sound absorbing member 20 includes a perforated plate 24 made of a metal, (25) and the heat-resistant sound-absorbing material (26) are sequentially coupled outwardly from the inside of the silencer,
The first section 21, the first section 27, the second section 22-1, the second section 22-2, the second section 28, the third section 22-2, 23) is 1: 1/2: 2: 1/3: 1/2: 2/3, and the noise reduction by the sound absorbing material is performed in the first, second and third sections, The second-1 section has the largest volume and holds the extremely low frequency, and the second-2 section is configured to hold the middle low-frequency sound. Offset type interference silencer 삭제delete
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200137774A (en) * 2019-05-31 2020-12-09 삼성중공업 주식회사 Engine exhaust pipe having exhaust noise reducing function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6312612U (en) * 1986-03-20 1988-01-27
JPH0414717U (en) * 1990-05-28 1992-02-06
JPH1113450A (en) * 1997-06-25 1999-01-19 Hino Motors Ltd Vehicular muffler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6312612U (en) * 1986-03-20 1988-01-27
JPH0414717U (en) * 1990-05-28 1992-02-06
JPH1113450A (en) * 1997-06-25 1999-01-19 Hino Motors Ltd Vehicular muffler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200137774A (en) * 2019-05-31 2020-12-09 삼성중공업 주식회사 Engine exhaust pipe having exhaust noise reducing function
KR102491145B1 (en) * 2019-05-31 2023-01-19 삼성중공업 주식회사 Engine exhaust pipe having exhaust noise reducing function

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