KR20020026398A - Muffler - Google Patents

Muffler Download PDF

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Publication number
KR20020026398A
KR20020026398A KR1020000057786A KR20000057786A KR20020026398A KR 20020026398 A KR20020026398 A KR 20020026398A KR 1020000057786 A KR1020000057786 A KR 1020000057786A KR 20000057786 A KR20000057786 A KR 20000057786A KR 20020026398 A KR20020026398 A KR 20020026398A
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KR
South Korea
Prior art keywords
exhaust
flow space
pipe
muffler
pressure
Prior art date
Application number
KR1020000057786A
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Korean (ko)
Inventor
박기철
Original Assignee
이계안
현대자동차주식회사
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Application filed by 이계안, 현대자동차주식회사 filed Critical 이계안
Priority to KR1020000057786A priority Critical patent/KR20020026398A/en
Publication of KR20020026398A publication Critical patent/KR20020026398A/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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/161—Silencing apparatus characterised by method of silencing by using movable parts for adjusting resonance or dead chambers or passages to resonance or dead 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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/22—Silencing apparatus characterised by method of silencing by using movable parts the parts being resilient walls
    • 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
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/12—Chambers having variable volumes
    • 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
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/04—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using kinetic energy

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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

PURPOSE: A muffler is provided to improve the mobility of an exhaust gas by decreasing and increasing the inside volume of the muffler by being slid according to the exhaust pressure in the muffler and reduce exhaust noise at low pressure of the exhaust gas and exhaust pressure at high pressure. CONSTITUTION: In a muffler comprising a case(1), partitions(2,3) dividing the case into a first flow space(4), a resonance chamber(5), and a second flow space(6), an inlet pipe(7) connecting an exhaust pipe to the first moving space, a flow pipe(8) connecting the first flow space and the second flow space, and an exhaust pipe(9) formed at one side of the case to exhaust the exhaust gas, a connecting pipe(10) connecting the second flow space to the exhaust pipe is formed to be slid, a moving plate(11) crossing the first flow space is formed at an outer surface of the connecting pipe, and an elastic body(12) is formed between the moving plate and the case for the connecting pipe to be slid according to the exhaust pressure.

Description

머플러{Muffler}Muffler {Muffler}

본 발명은 머플러에 관한 것으로서, 특히 배기 유동성을 향상시키고, 배기가스가 저압일때와 고압일때 머플러의 형상이 변경되면서 저압일때는 배기소음을 감소시키고, 고압일때는 배기압을 감쇄시켜 엔진의 전 운전영역에 대해 신속히 대응하여 배기압을 최적화할 수 있도록 한 머플러에 관한 것이다.The present invention relates to a muffler, in particular, to improve exhaust fluidity, and when the exhaust gas is changed at low pressure and high pressure, the shape of the muffler is changed and the exhaust noise is reduced at low pressure, and the exhaust pressure is reduced at high pressure to fully operate the engine. The present invention relates to a muffler capable of quickly responding to an area and optimizing exhaust pressure.

자동차의 배기시스템은 엔진 연소의 생성물인 고온, 고압의 가스를 대기상으로 배출할 뿐만 아니라 그때 발생된 연소소음을 감쇄시키는 장치로서의 역할을 하고있다.The exhaust system of automobiles not only discharges high-temperature, high-pressure gas, which is the product of engine combustion, to the atmosphere, but also acts as a device to reduce the combustion noise generated at that time.

이러한 배기계의 기능은 크게 소음저감과 배압저감 이라는 두가지 목표로 크게 나눌 수 있으며, 현재까지는 머플러나 파이프 등의 형상을 최적화함으로써 앞서 언급한 두가지 목적을 달성하고 있었다.The function of the exhaust system can be largely divided into two goals, namely noise reduction and back pressure reduction. Up to now, the aforementioned two objectives have been achieved by optimizing the shape of a muffler or a pipe.

하지만 최근에는 소음저감과 배압저감이라는 두가지 요소를 모두 만족시키려는 시도가 계속해서 진행되었고, 이러한 욕구를 만족시키기 위해 제안된 것이 가변 머플러이다.Recently, however, there have been many attempts to satisfy both the noise reduction and back pressure reduction, and the variable muffler has been proposed to satisfy these needs.

가변 머플러는 엔진 저속영역과 고속영역의 상반되는 두가지 조건을 모두 만족시키기 위하여 머플러 내부에 별도의 밸브를 설치하여 저속영역에서는 밸브를 닫고 고속영역에서는 밸브를 열도록 구성된 것이다.The variable muffler is configured to close the valve in the low speed region and open the valve in the high speed region by installing a separate valve inside the muffler in order to satisfy both opposing conditions of the engine low speed region and the high speed region.

그러나 상기와같은 가변 머플러는 밸브를 개폐시켜 배기가스의 유동경로를 바꾸는 방식이기 때문에 기존에 셋팅된 배기모드 즉, 저속영역과 고속영역에 한정하여 동작하게 되고, 밸브의 개폐를 통해서만 배기의 유동경로가 변경되므로 엔진의 전체적인 구동조건(rpm)에는 유동적으로 대처하지 못하는 문제점이 있었으며, 또 머플러 내부에 복수개의 밸브를 설치해야만 함에 따라 제품의 구조가 복잡해지고, 생산성이 감소하며, 내구성이 떨어지는 문제점이 발생하였다.However, since the variable muffler is a method of changing the flow path of the exhaust gas by opening and closing the valve, the variable muffler operates only in the existing exhaust mode, that is, the low speed region and the high speed region. Since there is a problem that the overall driving condition (rpm) of the engine can not be flexibly coped, and a plurality of valves must be installed inside the muffler, the structure of the product is complicated, productivity is reduced, and durability is poor Occurred.

따라서, 상기 문제점을 해결하기 위한 본 발명은 머플러 내부에 배기압에 따라 슬라이딩 이동하면서 머플러 내부의 부피를 축소 또는 증가 시키므로서 배기 유동성을 향상시키고, 배기가스가 저압일때와 고압일때 머플러의 형상이 변경되면서 저압일때는 배기소음을 감소시키고, 고압일때는 배기압을 감쇄시켜 엔진의 전 운전영역에 대해 신속히 대응하여 배기압을 최적화할 수 있도록 한 머플러를 제공함을 목적으로 한다.Therefore, the present invention for solving the above problems by improving the exhaust flowability by reducing or increasing the volume of the inside of the muffler while slidingly moving in accordance with the exhaust pressure inside the muffler, the shape of the muffler is changed when the exhaust gas is low pressure and high pressure The purpose of the present invention is to provide a muffler capable of reducing exhaust noise at low pressure and reducing exhaust pressure at high pressure so as to quickly respond to the entire operating region of the engine and optimize exhaust pressure.

상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,

케이스와, 케이스의 내부를 제 1 유동공간, 공명실, 제 2 유동공간으로 구획하는 격벽과, 배기파이프와 제 1 유동공간을 연결하는 유입관과, 제 1 유동공간과 제 2 유동공간을 연결하는 유동관과, 배기가스의 배출을 위해 케이스의 일측에 형성되는 배출관을 포함하여 구성된 머플러에 있어서,A case, a partition wall partitioning the inside of the case into a first flow space, a resonance chamber, and a second flow space, an inlet pipe connecting the exhaust pipe and the first flow space, and a connection between the first flow space and the second flow space. In the muffler comprising a flow pipe and a discharge pipe formed on one side of the case for the discharge of exhaust gas,

상기 제 2 유동관과 배출관을 연결하는 연결관을 슬라이딩 가능하게 형성하되, 연결관의 외주면상에 제 1 유동공간을 가로지르는 움직임판을 형성하고, 상기 움직임판과 케이스의 사이에 탄성체를 형성하여 배기압에 따라 연결관이 슬라이딩 이동하도록 한 것을 특징으로 한다.A connecting pipe connecting the second flow pipe and the discharge pipe is formed to be slidable, and a moving plate is formed on the outer circumferential surface of the connecting pipe to cross the first flow space, and an elastic body is formed between the moving plate and the case. The connector is characterized in that the sliding movement according to the air pressure.

도 1 은 본 발명의 머플러를 보인 단면도.1 is a cross-sectional view showing a muffler of the present invention.

도 2 는 본 발명의 작동상태를 보인 단면도.2 is a cross-sectional view showing an operating state of the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 케이스 2,3 : 격벽1: case 2, 3: partition wall

4 : 제 1 유동공간 5 : 공명실4: first flow space 5: resonance chamber

6 : 제 2 유동공간 7 : 유입관6: second flow space 7: inlet pipe

8 : 유동관 9 : 배출관8: flow pipe 9: discharge pipe

10 : 연결관 11 : 움직임판10 connector 11 moving plate

12 : 탄성체 13 : 노즐부12 elastic body 13 nozzle part

이하, 첨부된 도면 도 1 과 도 2 를 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 and 2.

도면부호 1 은 머플러의 전체적인 외형을 이루는 케이스를 나타내고, 이 케이스(1)의 내부에는 케이스(1) 내부 공간을 제 1 유동공간(4), 공명실, 제 2 유동공간(6)으로 구획하는 2개의 격벽(2,3)이 일정간격으로 형성되어 있다.Reference numeral 1 denotes a case forming the overall outline of the muffler, and inside the case 1, the inner space of the case 1 is divided into a first flow space 4, a resonance chamber, and a second flow space 6; Two partitions 2 and 3 are formed at regular intervals.

케이스(1)의 일측에는 배기파이프로부터 공급되는 배기가스를 제 1 유동공간(4)으로 안내하는 유입관(7)이 형성되고, 케이스(1)의 타측에는 머플러 내부를 통과한 배기가스를 대기상에 배출하기 위한 배출관(9)이 형성된다.On one side of the case 1, an inlet pipe 7 for guiding the exhaust gas supplied from the exhaust pipe into the first flow space 4 is formed, and on the other side of the case 1, the exhaust gas that has passed through the muffler is placed. A discharge pipe 9 for discharging to the gas phase is formed.

제 1 유동공간(4)과 제 2 유동공간(6)의 사이에는 별도의 유동관(8)이 형성되고, 제 2 유동공간(6)과 배출관(9)을 연결하는 연결관(10)이 도 1 과같이 설치된다.A separate flow tube 8 is formed between the first flow space 4 and the second flow space 6, and a connecting pipe 10 connecting the second flow space 6 and the discharge pipe 9 is illustrated. It is installed as 1

상기 연결관(10)은 그 일측이 제 2 유동공간(6) 내부로 돌출되도록 하고, 그 타측이 배출관(9) 내부로 삽입되도록 하되, 연결관(10)이 좌우 방향으로 슬라이딩 이동이 가능하도록 형성하는 것이 바람직하며, 연결관(10)의 끝부분에는 배기가스의 원활한 배출을 위해 일정각도 경사진 노즐부(13)를 형성하였다.The connecting pipe 10 has one side to protrude into the second flow space 6, and the other side is inserted into the discharge pipe 9, so that the connecting pipe 10 can slide in the left and right directions. It is preferable to form, and at the end of the connecting pipe 10 to form a nozzle portion 13 inclined at an angle for smooth discharge of the exhaust gas.

그리고, 상기 연결관(10)의 외주면상에는 제 1 유동공간(4)을 세로방향으로 가로지르는 움직임판(11)을 형성하는데, 이 움직임판(11)과 케이스(1)의 사이에 복수개의 탄성체(12)를 형성하여 유입관(7)을 통해 공급되는 배기가스의 압력이 상기 탄성체의 탄성력보다 작을때는 움직임판(11)이 탄성체(12)의 탄성에 의해 밀려 제 1 유동공간(4)의 중간위치에 존재하게되고, 유입관(7)을 통해 공급되는 배기가스의 압력이 상기 탄성체의 탄성력보다 클때에는 움직임판(11)이 탄성체(12)의 탄성을 이기고 전진하게되는 것이다.And, on the outer circumferential surface of the connecting pipe 10 is formed a moving plate 11 that traverses the first flow space (4) in the longitudinal direction, a plurality of elastic bodies between the moving plate 11 and the case (1) When the pressure of the exhaust gas supplied through the inlet pipe 7 is formed to be less than the elastic force of the elastic body, the moving plate 11 is pushed by the elasticity of the elastic body 12 so as to form the first flow space 4. When the pressure of the exhaust gas supplied through the inlet pipe 7 is greater than the elastic force of the elastic body, the moving plate 11 overcomes the elasticity of the elastic body 12 and moves forward.

상기 움직임판(11)이 도면상의 좌우방향으로 움직이면 이에 연동하여 연결관(10) 또한 좌우 방향으로 이동하게 되는데 이 움직임에 의해 배기가스의 배기압과 배기소음이 감쇄된다.When the moving plate 11 moves in the left and right directions on the drawing, the connecting pipe 10 also moves in the left and right directions in conjunction with this movement, thereby reducing the exhaust pressure and the exhaust noise of the exhaust gas.

일반적으로 머플러는 그 머플러의 형상에 따라 배기압감쇄 및 소음감쇄율이 달라지는데, 머플러의 형상은 크게 스탠다드타입-"" 과, 플랜지타입-""과, 인서션(insertion)타입-""으로 나누어 지며, 이중에서 상기 인서션타입이 노이즈저감 효과가 가장크고, 스탠다드타입은 노이즈저감 효과는 떨어지나 배기압을 최적화할 수 있는 장점이 있다.In general, the muffler has different exhaust pressure reduction and noise reduction rates depending on the shape of the muffler. The shape of the muffler is largely standard type- " "And flange type" "And, insertion type-" ", And the insert type has the greatest noise reduction effect, and the standard type has the advantage of optimizing the exhaust pressure, although the noise reduction effect is inferior.

따라서, 본 발명에서는 엔진이 저속으로 구동할때 머플러를 인서션타입으로 변경하여 노이즈를 저감하고, 엔진이 고속으로 구동할때에는 머플러를 스탠다드타입으로 변경하여 배기압을 최적화할수 있도록 하였다.Therefore, in the present invention, the noise is reduced by changing the muffler to the insertion type when the engine is driven at low speed, and the exhaust pressure is optimized by changing the muffler to the standard type when the engine is driven at high speed.

이와같이 구성되는 본 발명의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above is as follows.

엔진이 저속으로 구동할 경우,If the engine runs at low speed,

엔진이 저속으로 구동하면, 엔진에서 배출되는 배기가스의 배기압 또한 저압상태로 배출되며, 이 배기가스는 배기파이프를 통해 이동하여 유입관(7)으로 유입되어 제 1 유동공간(4)으로 공급된다.When the engine is driven at a low speed, the exhaust pressure of the exhaust gas discharged from the engine is also discharged at a low pressure state, and the exhaust gas flows through the exhaust pipe and flows into the inlet pipe 7 to be supplied to the first flow space 4. do.

제 1 유동공간(4)으로 유입되는 배기가스의 배기압이 저압일경우에는 배기압이 탄성체(12)을 탄성보다 작게되므로, 움직임판(11)은 탄성체(12)의 탄성력을 이기지 못하게되어 도 1 과같이 제 1 유동공간(4)의 중앙부분에 위치하게되고, 이에의해 연결관(10)의 유입부(10a)또한 제 2 유동공간(6)의 내부로 돌출된 형상, 즉, 인서션타입으로 설정된다.When the exhaust pressure of the exhaust gas flowing into the first flow space 4 is a low pressure, the exhaust pressure is smaller than the elastic body 12, so that the movable plate 11 may not overcome the elastic force of the elastic body 12. As shown in FIG. 1, the inflow portion 10a of the connecting pipe 10 is also protruded into the second flow space 6, that is, the insertion portion. It is set to the type.

상기와같이 움직임판(11)이 제 1 유동공간(4)의 중앙부분에 위치하면, 전체적인 제 1 유동공간(4)의 부피가 감소하게되어 저압으로 공급되는 배기가스의 유동이 원활해지며, 또 유동관(8)을 통해 제 2 유동공간(6)으로 공급된 후 다시 연결관(10)을 통해 배기가스가 배출관(9)으로 배출되는 과정에서 인서션타입으로 형성되어있는 연결관(10)에 의해 배기소음이 효과적으로 감쇄되는 것이다.As described above, when the moving plate 11 is positioned at the center portion of the first flow space 4, the volume of the entire first flow space 4 is reduced to smooth the flow of the exhaust gas supplied at a low pressure. In addition, the connection pipe 10 is formed in the insertion type in the process of exhaust gas is discharged to the discharge pipe 9 through the connection pipe 10 after being supplied to the second flow space (6) through the flow pipe (8). Exhaust noise is effectively attenuated.

한편, 엔진이 고속으로 구동하면,On the other hand, if the engine is driven at high speed,

엔진이 고속으로 구동하면, 엔진에서 배출되는 배기가스의 배기압 또한 고압상태로 배출되며, 이 배기가스는 배기파이프를 통해 이동하여 유입관(7)으로 유입되어 제 1 유동공간(4)으로 공급된다.When the engine is driven at a high speed, the exhaust pressure of the exhaust gas discharged from the engine is also discharged at a high pressure, and the exhaust gas moves through the exhaust pipe and flows into the inlet pipe 7 to be supplied to the first flow space 4. do.

제 1 유동공간(4)으로 유입되는 배기가스의 배기압이 고압일경우에는 배기압이 탄성체(12)을 탄성보다 크게되므로, 움직임판(11)은 탄성체(12)의 탄성력을 이기고 전진하여 도 2 와같이 제 1 유동공간(4)의 우측으로 치우쳐 위치하게되고, 이에의해 연결관(10) 또한 우측으로 이동하여 연결관(10)의 유입부(10a)가 도 2 와같이 격벽(2)과 나란해지는 형상, 즉, 스탠다스타입으로 설정된다.When the exhaust pressure of the exhaust gas flowing into the first flow space 4 is a high pressure, the exhaust pressure is greater than the elastic body 12, so that the moving plate 11 overcomes the elastic force of the elastic body 12 to move forward. As shown in FIG. 2, the first flow space 4 is positioned to the right side, whereby the connecting pipe 10 also moves to the right, so that the inlet portion 10a of the connecting pipe 10 is partitioned as shown in FIG. 2. It is set to a shape parallel to the shape, that is, a standard type.

상기와같이 움직임판(11)이 제 1 유동공간(4)의 우측으로 치우쳐 위치하면, 전체적인 제 1 유동공간(4)의 부피가 증가하게되어 고압으로 공급되는 배기가스의 유동이 원활해지며, 또 유동관(8)을 통해 제 2 유동공간(6)으로 공급된 후 다시 연결관(10)을 통해 배기가스가 배출관(9)으로 배출되는 과정에서 스탠다드타입으로 변경되어있는 연결관(10)에 의해 배기압이 최적화되어 배기가스의 유동성이 원활해지는 것이다.When the moving plate 11 is located to the right side of the first flow space 4 as described above, the volume of the entire first flow space 4 is increased to smooth the flow of the exhaust gas supplied at a high pressure, In addition, after the exhaust pipe is supplied to the second flow space 6 through the flow pipe 8 and the exhaust gas is discharged to the discharge pipe 9 through the connection pipe 10 again, the connection pipe 10 is changed into a standard type. As a result, the exhaust pressure is optimized to smooth the flowability of the exhaust gas.

상기 설명에서는 본 발명이 배기가스가 저압일경우와 고압일 경우로 나누어설명하였으나, 실제로는 본 발명의 움직임판(11)과 연결관(10)이 엔진에서 배출되는 배기가스의 배기압에 연동되어 동작하게되므로 엔진의 전체적인 구동조건(rpm)에 대해 신속히 대처하여 배기소음과 배기압을 최적화할 수 있게된다.In the above description, the present invention is divided into a case where the exhaust gas is a low pressure and a high pressure, but in practice, the moving plate 11 and the connecting pipe 10 of the present invention are linked to the exhaust pressure of the exhaust gas discharged from the engine. By operating, it is possible to quickly respond to the overall driving condition (rpm) of the engine and to optimize exhaust noise and exhaust pressure.

즉, 엔진에서 배출되는 배기가스의 배기압이 증가 또는 감소함에 따라 이에 연동하여 움직임판(11)이 좌우로 이동하고, 이에의해 연결관(10) 자체가 배출관(9)을 따라 좌우로 이동하면서 유입부(10a)의 제 2 유동공간(6) 내부로의 돌출길이가 유동적으로 가변됨에 따라 배기가스의 배기소음과 배기압이 최적화되는 것이다.That is, as the exhaust pressure of the exhaust gas discharged from the engine increases or decreases, the moving plate 11 moves to the left and right in association with it, whereby the connecting pipe 10 itself moves to the left and right along the discharge pipe 9. As the protruding length of the inflow portion 10a into the second flow space 6 varies fluidly, exhaust noise and exhaust pressure of the exhaust gas are optimized.

이상에서 설명한 바와같이 본 발명은 머플러 내부에 배기압에 따라 슬라이딩 이동하면서 머플러 내부의 부피를 축소 또는 증가 시키므로서 배기 유동성을 향상시키고, 배기가스가 저압일때와 고압일때 머플러의 형상이 변경되면서 저압일때는 배기소음을 감소시키고, 고압일때는 배기압을 감쇄시켜 엔진의 전 운전영역에 대해 신속히 대응하여 배기압을 최적화할 수 있도록 한 머플러를 제공하는 효과를 기대할 수 있다.As described above, the present invention improves exhaust flowability by reducing or increasing the volume inside the muffler while slidingly moving in accordance with the exhaust pressure inside the muffler, and when the exhaust gas is low pressure and high pressure when the shape of the muffler is changed to low pressure. It can be expected to reduce the exhaust noise, and to reduce the exhaust pressure at high pressure to provide a muffler capable of optimizing the exhaust pressure by quickly responding to the entire operating region of the engine.

Claims (4)

케이스(1)와, 케이스(1)의 내부를 제 1 유동공간(4), 공명실(5), 제 2 유동공간(6)으로 구획하는 격벽(2,3)과, 배기파이프와 제 1 유동공간(4)을 연결하는 유입관(7)과, 제 1 유동공간(4)과 제 2 유동공간(6)을 연결하는 유동관(8)과, 배기가스의 배출을 위해 케이스(1)의 일측에 형성되는 배출관(9)을 포함하여 구성된 머플러에 있어서,Case 1, partitions 2 and 3 partitioning the inside of case 1 into first flow space 4, resonance chamber 5 and second flow space 6, exhaust pipe and first An inlet pipe 7 connecting the flow space 4, a flow pipe 8 connecting the first flow space 4 and the second flow space 6, and a case 1 for exhaust gas discharge. In the muffler comprising a discharge pipe (9) formed on one side, 상기 제 2 유동관(6)과 배출관(9)을 연결하는 연결관(10)을 슬라이딩 가능하게 형성하되, 연결관(10)의 외주면상에 제 1 유동공간(4)을 가로지르는 움직임판(11)을 형성하고, 상기 움직임판(11)과 케이스(1)의 사이에 탄성체(12)를 형성하여 배기압에 따라 연결관(10)이 슬라이딩 이동하도록 한 것을 특징으로하는 머플러.A sliding plate 10 is formed to be slidably connected to the second flow pipe 6 and the discharge pipe 9, and moves on the outer circumferential surface of the connection pipe 10 to cross the first flow space 4. ) And an elastic body (12) formed between the movable plate (11) and the case (1) to allow the connecting pipe (10) to slide in accordance with the exhaust pressure. 제 1 항에 있어서,The method of claim 1, 배기압이 낮을때는 연결관(10)의 유입구(10a)측이 제 2 유동공간(6)의 내부로 돌출되어 배기소음을 효과적으로 감쇄시키고, 배기압이 높을때는 연결관(10)의 유입구(10a)측이 제 2 유동공간(6) 내부로 돌출되지 않게되어 머플러 내의 배기압을 최적화하여 배기의 원활한 배출이 이루이지도록 한 것을 특징으로 하는 머플러.When the exhaust pressure is low, the inlet 10a side of the connecting pipe 10 protrudes into the second flow space 6 to effectively attenuate the exhaust noise, and when the exhaust pressure is high, the inlet 10a of the connecting pipe 10. M) side is not protruded into the second flow space (6) to optimize the exhaust pressure in the muffler to achieve a smooth discharge of the exhaust. 제 1 항에 있어서,The method of claim 1, 배기압이 낮을때는 탄성체(12)의 탄성력에 의해 움직임판(11)이 제 1 유동공간(4)의 중간에 위치하게되어 제 1 유동공간(4)의 전체적인 부피가 감소하고, 배기압이 높을때는 배기압에 의해 움직임판(11)이 탄성체(12)의 탄성력을 이기고 전진하게되어 제 1 유동공간(4)의 전체적인 부피가 증가하는 것을 특징으로 하는 머플러.When the exhaust pressure is low, the moving plate 11 is positioned in the middle of the first flow space 4 by the elastic force of the elastic body 12, so that the overall volume of the first flow space 4 is reduced, and the exhaust pressure is high. The muffler, characterized in that when the moving plate (11) by the exhaust pressure to overcome the elastic force of the elastic body 12, the overall volume of the first flow space (4) increases. 제 1 항에 있어서,The method of claim 1, 상기 탄성체(12)는 움직임판(11)의 균일한 이동을 위해 움직임판(11)의 전체에 걸쳐 일정간격으로 복수개 설치되는 것을 특징으로 하는 머플러.Muffler, characterized in that the elastic body 12 is installed in a plurality at regular intervals throughout the movement plate (11) for the uniform movement of the movement plate (11).
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