KR20030083382A - Variable-diameter exhaust system - Google Patents

Variable-diameter exhaust system Download PDF

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Publication number
KR20030083382A
KR20030083382A KR1020020021894A KR20020021894A KR20030083382A KR 20030083382 A KR20030083382 A KR 20030083382A KR 1020020021894 A KR1020020021894 A KR 1020020021894A KR 20020021894 A KR20020021894 A KR 20020021894A KR 20030083382 A KR20030083382 A KR 20030083382A
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KR
South Korea
Prior art keywords
members
exhaust
pipe
diameter
exhaust system
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KR1020020021894A
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Korean (ko)
Inventor
박기철
Original Assignee
현대자동차주식회사
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Priority to KR1020020021894A priority Critical patent/KR20030083382A/en
Publication of KR20030083382A publication Critical patent/KR20030083382A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/14Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2530/00Selection of materials for tubes, chambers or housings
    • F01N2530/22Flexible elastomeric material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy

Abstract

PURPOSE: A variable-diameter exhaust system is provided to achieve improved exhaust performance by automatically varying the diameter of the exhaust gas passage in accordance with the flow of the exhaust gas emitted from an engine. CONSTITUTION: A variable-diameter exhaust system comprises a housing(10) having an exhaust port(11) formed at one side of the housing; a pipe(20) penetrating through the other side of the housing; the first member(31) and the second member(32) arranged in the pipe and which have semi-circular cross sections; and the first spring(41) and the second spring(42) for permitting the first and second members to tightly contact with each other so as to form a pipe. The first and second members have the first and second flaps(51,52) expanded outward from the front ends of the first and second members, respectively.

Description

직경 가변형 배기 시스템{Variable-diameter Exhaust system}Variable-diameter exhaust system {Variable-diameter Exhaust system}

본 발명은 직경 가변형 배기 시스템에 관한 것으로, 좀더 상세하게는 차량의 엔진에서 배출되는 배기가스의 흐름에 따라 배기 통로의 직경을 가변시켜서 최적의 배기성능을 얻을 수 있도록 한 직경 가변형 배기 시스템에 관한 것이다.The present invention relates to a variable diameter exhaust system, and more particularly, to a variable diameter exhaust system in which the diameter of the exhaust passage is varied according to the flow of exhaust gas discharged from the engine of the vehicle to obtain an optimal exhaust performance. .

일반적으로, 자동차의 배기 시스템은 연소의 생성물인 고온, 고압의 가스를 적당한 곳으로 안내할 뿐만 아니라, 연소중에 발생되는 연소음을 감쇄시키는 장치로서의 역할을 수행한다. 이러한 배기 시스템의 기능은 크게 소음저감과 배기압저감이라는 두가지 기능으로 나눌 수 있는데, 현재까지는 머플러나 배기 파이프의 형상을 최적화하는 방법으로 앞에서 언급한 두가지 기능을 모두 충족시키려는 시도가 이루어지고 있었다.In general, the exhaust system of an automobile not only guides high-temperature, high-pressure gas, which is a product of combustion, to a suitable place, but also serves as a device for attenuating combustion noise generated during combustion. The function of the exhaust system can be classified into two functions, namely noise reduction and exhaust pressure reduction. Until now, attempts to satisfy both of the aforementioned functions have been made by optimizing the shape of the muffler or the exhaust pipe.

그러나, 상기한 바와 같은 배기 시스템은 그 형상이 고정되어 있음에 따라 엔진의 전체 RPM영역에 걸쳐 효과적인 성능을 발휘하기가 어려운 문제점이 있으므로, 이러한 문제점을 해소하기 위해 최근에는 가변 머플러 시스템(Dual-mode Exhaust system}이 개발되어 장착되고 있다.However, since the exhaust system as described above has a problem that it is difficult to achieve effective performance over the entire RPM region of the engine as its shape is fixed, recently, in order to solve this problem, a variable muffler system (dual-mode) has recently been developed. Exhaust system} is developed and installed.

상기한 가변 머플러 시스템은 엔진의 저속영역에서는 밸브를 닫고 엔진의 고속영역에서는 밸브를 열어서 엔진에서 배출되는 배기가스를 서로 다른 구조를 가지는 머플러를 통과시키는 방식이다.The above-described variable muffler system is to close the valve in the low speed region of the engine and open the valve in the high speed region of the engine so that the exhaust gas discharged from the engine passes through the mufflers having different structures.

그러나, 상기한 바와 같은 가변 머플러 시스템은, 밸브의 개폐를 통해서 배기경로를 변경함에 따라 엔진의 동작상태를 2가지 조건 즉, 저속과 고속으로만 가정하여 배기 시스템을 제어할 수 밖에 없으므로, 엔진의 회전수 및 엔진의 배기량등과 같은 조건에 민감하게 동작하지 못하는 문제점이 있었다.However, in the variable muffler system as described above, as the exhaust path is changed through opening and closing of the valve, the exhaust system can only be controlled by assuming that the engine operating state is two conditions, namely, low speed and high speed. There was a problem in that it does not operate sensitively to conditions such as the number of revolutions, the engine displacement.

본 발명은 상기한 바와 같은 종래의 문제점을 해소하기 위해 안출된 것으로, 엔진에서 배출되는 배기가스의 흐름에 따라 배기 통로의 직경을 자동적으로 가변시켜서 최적의 배기성능을 얻을 수 있도록 한 직경 가변형 배기 시스템을 제공하는데 그 목적이 있다.The present invention has been made to solve the conventional problems as described above, the variable diameter exhaust system to automatically vary the diameter of the exhaust passage in accordance with the flow of exhaust gas discharged from the engine to obtain the optimum exhaust performance The purpose is to provide.

상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 직경 가변형 배기 시스템은, 일측에 배기구가 형성된 하우징과, 상기 배기구의 반대측에 상기 하우징을 관통하여 구비된 파이프와, 상기 파이프의 내부에 구비되면서 반원 형상의 단면을 가지는 제1 및 제2부재와, 상기 제1 및 제2부재를 서로 밀착시켜서 상기 제1 및 제2부재가 파이프 형상을 이루도록 하는 제1 및 제2스프링을 포함하여 구성되는 한편, 상기 제1 및 제2부재의 선단부에는 바깥쪽으로 확장되는 제1 및 제2플랩이 상기 제1 및 제2부재로부터 연장되어 형성된 것을 특징으로 한다.A variable diameter exhaust system according to the present invention for achieving the object as described above, a housing having an exhaust port formed on one side, a pipe provided through the housing on the opposite side of the exhaust port, and a semicircle while being provided inside the pipe And first and second springs having a cross-sectional shape, and first and second springs in which the first and second members are brought into close contact with each other to form a pipe shape. The front end portions of the first and second members are characterized in that the first and second flaps extending outwardly formed to extend from the first and second members.

도 1은 본 발명에 따른 직경 가변형 배기 시스템의 개략도,1 is a schematic diagram of a variable diameter exhaust system according to the present invention;

도 2는 본 발명에 따른 직경 가변형 배기 시스템에서 배기 통로의 직경이 축소된 상태를 도시한 단면도,2 is a cross-sectional view showing a state in which the diameter of the exhaust passage is reduced in the variable diameter exhaust system according to the present invention;

도 3은 본 발명에 따른 직경 가변형 배기 시스템에서 배기 통로의 직경이 확대된 상태를 도시한 단면도이다.3 is a cross-sectional view showing an enlarged diameter of the exhaust passage in the variable diameter exhaust system according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 하우징20 : 파이프10 housing 20 pipe

31 : 제1부재32 : 제2부재31: first member 32: second member

41 : 제1스프링42 : 제2스프링41: first spring 42: second spring

51 : 제1플랩52 : 제2플랩51: first flap 52: second flap

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 따른 직경 가변형 배기 시스템의 개략도이고, 도 2는 본 발명에 따른 직경 가변형 배기 시스템에서 배기 통로의 직경이 축소된 상태를 도시한 단면도이며, 도 3은 본 발명에 따른 직경 가변형 배기 시스템에서 배기 통로의 직경이 확대된 상태를 도시한 단면도이다.1 is a schematic diagram of a variable diameter exhaust system according to the present invention, Figure 2 is a cross-sectional view showing a reduced diameter of the exhaust passage in the variable diameter exhaust system according to the present invention, Figure 3 is a variable diameter according to the present invention It is sectional drawing which shows the state in which the diameter of the exhaust path was expanded in the exhaust system.

상기 도 1 내지 도 3에 도시된 바와 같이, 본 발명에 따른 직경 가변형 배기 시스템은, 배기구(11)가 형성된 하우징(10)과, 파이프(20)와, 제1플랩(51)이 형성된 제1부재(31)와, 제2플랩(52)이 형성된 제2부재(32)와, 제1스프링(41)과, 제2스프링(42)를 포함하여 구성되어 있다.1 to 3, the variable diameter exhaust system according to the present invention includes a housing 10 having an exhaust port 11, a pipe 20, and a first flap 51 formed thereon. The member 31, the 2nd member 32 in which the 2nd flap 52 was formed, the 1st spring 41, and the 2nd spring 42 are comprised.

상기 파이프(20)는 상기 배기구(11)의 반대측에 상기 하우징(10)을 관통하여장착되며, 제1 및 제2부재(31, 32)는 상기 파이프(20)의 내부에 구비되면서 반원 형상의 단면을 가지고 있다.The pipe 20 is mounted through the housing 10 on the opposite side of the exhaust port 11, and the first and second members 31 and 32 are provided in the pipe 20 and have a semicircular shape. It has a cross section.

상기 제1 및 제2스프링(41, 42)은 상기 제1 및 제2부재(31, 32)와 파이프(20)의 사이에 설치되어 상기 제1 및 제2부재(31, 32)를 서로 밀착시킴으로써, 상기 제1 및 제2부재(31, 32)가 파이프 형상을 이루도록 한다.The first and second springs 41 and 42 are installed between the first and second members 31 and 32 and the pipe 20 to closely adhere the first and second members 31 and 32 to each other. By doing so, the first and second members 31 and 32 form a pipe shape.

또한, 상기 제1 및 제2플랩(51, 52)은 상기 제1 및 제2부재(31, 32)의 선단부로부터 연장되어 형성된 것으로, 상기 제1 및 제2부재(31, 32)의 바깥쪽으로 소정기울기를 가지면서 확장되어 있다.In addition, the first and second flaps 51 and 52 extend from the front end portions of the first and second members 31 and 32 and are formed outwardly of the first and second members 31 and 32. It is expanded while having a predetermined slope.

또, 상기 파이프(20)의 내측면에는 상기 제1 및 제2스프링(41, 42)이 안착되는 안착홈(61, 62)이 형성되어 있다.In addition, seating grooves 61 and 62 in which the first and second springs 41 and 42 are seated are formed on the inner surface of the pipe 20.

상기와 같이 구성된 본 발명에 따른 직경 가변형 배기 시스템의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the variable diameter exhaust system according to the present invention configured as described above are as follows.

엔진의 저RPM영역에서는 엔진에서 배출되어 파이프(20)와 제1 및 제2부재(31, 32)를 통과하는 배기가스의 흐름이 약하게 되어, 상기 제1 및 제2부재(31, 32)는 제1 및 제2스프링(41, 42)의 힘에 의해 서로 밀착되어 파이프 형상을 가지게 되므로, 배기 통로의 직경이 축소되는 효과를 가지게 된다.In the low RPM region of the engine, the exhaust gas flowing from the engine and passing through the pipe 20 and the first and second members 31 and 32 is weakened, so that the first and second members 31 and 32 are Since the first and second springs 41 and 42 are in close contact with each other and have a pipe shape, the diameter of the exhaust passage is reduced.

한편, 엔진의 고RPM영역에서는 엔진에서 배출되어 파이프(20)와 제1 및 제2부재(31, 32)를 통과하는 배기가스의 흐름이 점점 강하게 되어, 상기 제1 및 제2부재(31, 32)의 제1 및 제2플랩(51, 52)이 양력 작용을 많이 받게 되므로, 상기 제1 및 제2부재(31, 32)는 제1 및 제2스프링(41, 42)의 힘을 극복하고 서로 분리되어서바깥쪽으로 이동하게 되므로, 배기 통로의 직경이 커지는 효과를 가지게 된다.On the other hand, in the high RPM region of the engine, the exhaust gas flowing from the engine and passing through the pipe 20 and the first and second members 31 and 32 becomes increasingly strong, so that the first and second members 31, Since the first and second flaps 51 and 52 of the 32 are subjected to a lot of lifting action, the first and second members 31 and 32 overcome the forces of the first and second springs 41 and 42. And since they are separated from each other and moved outwards, the diameter of the exhaust passage is increased.

이상에서 살펴본 바와 같이 본 발명에 따르면, 엔진에서 배출되는 배기가스의 흐름에 따라 배기 통로의 직경을 자동적으로 가변시켜서 최적의 배기성능을 얻을 수 있는 효과가 있다.As described above, according to the present invention, the diameter of the exhaust passage is automatically changed according to the flow of the exhaust gas discharged from the engine, thereby obtaining an optimum exhaust performance.

Claims (1)

일측에 배기구가 형성된 하우징과, 상기 배기구의 반대측에 상기 하우징을 관통하여 구비된 파이프와, 상기 파이프의 내부에 구비되면서 반원 형상의 단면을 가지는 제1 및 제2부재와, 상기 제1 및 제2부재를 서로 밀착시켜서 상기 제1 및 제2부재가 파이프 형상을 이루도록 하는 제1 및 제2스프링을 포함하여 구성되는 한편, 상기 제1 및 제2부재의 선단부에는 바깥쪽으로 확장되는 제1 및 제2플랩이 상기 제1 및 제2부재로부터 연장되어 형성된 것을 특징으로 하는 직경 가변형 배기 시스템.A housing having an exhaust port formed on one side, a pipe provided through the housing on an opposite side of the exhaust port, first and second members provided inside the pipe and having a semicircular cross section, and the first and second parts A first spring and a second spring configured to bring the members into close contact with each other so that the first and second members form a pipe shape, while the front ends of the first and second members extend outwardly. A variable diameter exhaust system, characterized in that the flap extends from the first and second members.
KR1020020021894A 2002-04-22 2002-04-22 Variable-diameter exhaust system KR20030083382A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5747716U (en) * 1980-09-01 1982-03-17
KR970016042A (en) * 1995-09-30 1997-04-28 전성원 Car exhaust pipe
KR200152916Y1 (en) * 1997-05-15 1999-08-02 정몽규 Exhaust apparatus of a car
KR100261420B1 (en) * 1996-12-27 2000-07-01 정몽규 A variable volume muffler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5747716U (en) * 1980-09-01 1982-03-17
KR970016042A (en) * 1995-09-30 1997-04-28 전성원 Car exhaust pipe
KR100261420B1 (en) * 1996-12-27 2000-07-01 정몽규 A variable volume muffler
KR200152916Y1 (en) * 1997-05-15 1999-08-02 정몽규 Exhaust apparatus of a car

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