KR20070027045A - Pathway regulation device for exhaust pipe - Google Patents

Pathway regulation device for exhaust pipe Download PDF

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Publication number
KR20070027045A
KR20070027045A KR1020050079393A KR20050079393A KR20070027045A KR 20070027045 A KR20070027045 A KR 20070027045A KR 1020050079393 A KR1020050079393 A KR 1020050079393A KR 20050079393 A KR20050079393 A KR 20050079393A KR 20070027045 A KR20070027045 A KR 20070027045A
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South Korea
Prior art keywords
flow path
exhaust pipe
exhaust
opening
flow channel
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KR1020050079393A
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Korean (ko)
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박기철
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현대자동차주식회사
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Priority to KR1020050079393A priority Critical patent/KR20070027045A/en
Publication of KR20070027045A publication Critical patent/KR20070027045A/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
    • 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
    • F01N1/163—Silencing apparatus characterised by method of silencing by using movable parts for adjusting resonance or dead chambers or passages to resonance or dead chambers by means of valves
    • 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
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/06—Exhaust treating devices having provisions not otherwise provided for for improving exhaust evacuation or circulation, or reducing back-pressure
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/14—Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
    • 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
    • F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
    • F01N2290/08—Movable parts or members in exhaust systems for other than for control purposes with oscillating or vibrating movement
    • F01N2290/10—Movable parts or members in exhaust systems for other than for control purposes with oscillating or vibrating movement actuated by pressure of exhaust gases, e.g. exhaust pulses

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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)
  • Details Of Valves (AREA)

Abstract

A flow channel regulation device for an exhaust pipe is provided to reduce noises caused due to the variation of exhaust flow rate and RPM, by decreasing the opened area of an open/shut valve in cases where exhaust flow rate is low and increasing the opened area of the open/shut valve in cases where exhaust flow rate is high. An exhaust pipe(10) has an inlet port(11) and an outlet port(12), and a partition wall(20) arranged in the exhaust pipe so as to branch a flow channel into a first flow channel(A) and a second flow channel(B). An open/shut valve(30) is arranged in the first flow channel in such a manner that the open/shut valve opens/shuts in accordance with the variation of the flow rate of exhaust gas and RPM. The partition wall has a plurality of fine holes(21) for guiding exhaust gas introduced into the first flow channel in accordance with the degree of opening/closing of the open/shut valve to the second flow channel.

Description

배기파이프의 유로 조절장치{pathway regulation device for exhaust pipe} Path regulation device for exhaust pipe

도 1은 종래 배기파이프의 구조도. 1 is a structural diagram of a conventional exhaust pipe.

도 2는 본 발명의 일실시예로 배기파이프의 유로 조절장치에 대한 구조도. 2 is a structural diagram of a flow path adjusting device of the exhaust pipe in one embodiment of the present invention.

*도면의 주요 부분에 대한 부호의 설명* * Description of the symbols for the main parts of the drawings *

10; 배기파이프 11; 입구 10; Exhaust pipe 11; Entrance

12; 출구 20; 분기격벽 12; Exit 20; Branch bulkhead

21; 미세구멍 30; 개폐밸브 21; Micropores 30; Valve

31; 유로막 32; 스프링 31; Flow path 32; spring

본 발명은 배기파이프(또는 배기머플러)에 관한 것으로서, 보다 상세하게는 배기유량이 적을 경우에는 개폐의 면적을 작게 하고, 배기유량이 많을 경우에는 개폐의 면적을 넓게 하면서 배기유량 및 RPM의 변화량에 따른 배압 및 소음특성을 정교하게 개선할 수 있도록 하는 배기파이프의 유로 조절장치에 관한 것이다. The present invention relates to an exhaust pipe (or exhaust muffler). More specifically, when the exhaust flow rate is small, the opening / closing area is reduced. The present invention relates to an exhaust pipe passage adjusting device for precisely improving back pressure and noise characteristics.

종래에는 도 1에서와 같이, 배기파이프(1)의 유로에 위치하는 밸브(2)가 단 순히 열림과 닫힘동작만을 하도록 설계되어 있다. Conventionally, as shown in Fig. 1, the valve 2 located in the flow path of the exhaust pipe 1 is designed to simply open and close.

즉, 상기 밸브(2)는 스프링(3)의 탄성력에 따라 유량이 많을 경우 열림동작을 하고, 유량이 없을 경우에는 상기 스프링(3)의 탄성력에 의해 닫힘동작하는 단순한 2가지의 조건만을 반영한 것이다. That is, the valve 2 reflects only two simple conditions in which the opening operation is performed when the flow rate is large and the closing operation is performed by the elastic force of the spring 3 when there is no flow rate. .

그러나, 상기와 같은 밸브(2)의 개폐구조는 차량의 중간 RPM 또는 특정주행영역에서 밸브의 개폐에 대한 튜닝이 사실상 불가능한 단점이 있다. However, the opening and closing structure of the valve 2 as described above has a disadvantage in that tuning of the opening and closing of the valve in the middle RPM or a specific driving region of the vehicle is virtually impossible.

또한, 배기가스가 순간적으로 약해질 경우 밸브(2)가 순간적으로 닫히면서 상기 밸브(2)가 배기파이프(1)에 닿을 때마나 개폐음(또는 단속음)이 발생하는 문제점이 있다. In addition, when the exhaust gas is momentarily weakened, there is a problem that the opening and closing sound (or intermittent sound) occurs whenever the valve 2 contacts the exhaust pipe 1 while the valve 2 is closed momentarily.

즉, 종래의 배기파이프(1)에 적용되는 밸브(2)는 다양한 RPM조건에서의 민감한 소음저감을 달성할 수 있는 구조는 물론, 상기 밸브(2)가 순간적으로 닫힐 때 발생하는 단속음을 제거할 수 있는 구조가 제공되지는 않았다. That is, the valve 2 applied to the conventional exhaust pipe 1 has a structure capable of achieving sensitive noise reduction under various RPM conditions, as well as eliminating the intermittent sound generated when the valve 2 is closed momentarily. No structure was provided.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출된 것으로서 본 발명은, 배기파이프내에 미세구멍이 마련된 분기격벽을 마련한 후, 상기 분기격벽에 의해 분기되는 복수개의 유로 중 어느 하나에는 배기가스의 배출량은 물론 RPM에 따라 개폐가 이루어지는 개폐밸브를 구성함으로써, 배기유량이 적을 경우에는 개폐의 면적을 작게 하고, 배기유량이 많을 경우에는 개폐의 면적을 넓게 하면서 배기유량 및 RPM의 변화량에 따른 배압 및 소음특성을 정교하게 개선할 수 있도록 하는 배기파이프의 유로 조절장치를 제공하려는데 그 목적이 있다. Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the present invention, after providing a branch partition wall is provided with a fine hole in the exhaust pipe, the exhaust pipe in any one of the plurality of passages branched by the branch partition wall By constructing an on / off valve that opens and closes according to RPM as well as the amount of gas discharged, when the exhaust flow rate is small, the opening and closing area is reduced. It is an object of the present invention to provide a flow control device for an exhaust pipe that can precisely improve the back pressure and noise characteristics.

이하, 첨부된 도면에 의하여 본 발명의 바람직한 일실시예를 설명하면 다음과 같다. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명의 일실시예로 배기파이프의 유로 조절장치에 대한 구조도 이다. 2 is a structural diagram of an apparatus for adjusting a flow path of an exhaust pipe according to an embodiment of the present invention.

도 2에 도시된 바와같이, 입구(11)과 출구(12)과 마련된 배기파이프(10)를 구성함에 있어서, As shown in Figure 2, in the configuration of the exhaust pipe 10 provided with the inlet 11 and outlet 12,

상기 배기파이프(10)의 내부에는 유로를 제 1,2 유로(A)(B)로 분기시키기 위한 분기격벽(20)을 형성하고, A branch partition wall 20 is formed inside the exhaust pipe 10 to branch the flow path into the first and second flow paths A and B,

상기 분기격벽(20)에 의해 분기된 제 1 유로(A)에는 배기가스의 배기유량 및 RPM의 변화량에 따라 개폐가 이루어지는 개폐밸브(30)를 형성함을 특징을 한다. The first flow path A branched by the branched partition wall 20 is characterized in that the opening and closing valve 30 is opened and closed according to the amount of change in the exhaust flow rate and RPM of the exhaust gas.

다른 일면에 따라, 상기 분기격벽(20)에는, According to another aspect, the branch partition wall 20,

상기 개폐밸브(30)의 개폐량에 따라 제 1 유로(A)로 유입된 배기가스를 제 2 유로(B)로 안내하는 다수의 미세구멍(21)을 형성함을 특징으로 한다. A plurality of fine holes 21 for guiding the exhaust gas introduced into the first flow path A to the second flow path B is formed according to the opening / closing amount of the open / close valve 30.

또 다른 일면에 따라, 상기 개폐밸브(30)는, According to yet another aspect, the on-off valve 30,

제 1 유로(A)를 차단하되, 배기가스의 배기유량에 따라 미세구멍(21) 또는 제 1 유로(A)를 개방시키도록 슬라이드 유동하는 유로막(31) 및, A flow path film 31 which blocks the first flow path A but slides to open the micro holes 21 or the first flow path A according to the exhaust flow rate of the exhaust gas,

상기 유로막(31)의 후단에 위치하면서, 상기 제 1 유로(A)의 개방시 압축작용하는 스프링(32)의 결합구조로 이루어짐을 특징으로 한다. Located at the rear end of the flow path film 31, it is characterized in that it consists of a coupling structure of the spring 32 to act as a compression when opening the first flow path (A).

이와같이 구성된 본 발명의 일실시예에 대한 작용을 첨부된 도 2를 참조하여 설명하면 다음과 같다. Referring to Figure 2 attached to the operation of an embodiment of the present invention configured as described above are as follows.

먼저, 차량이 아이들 RPM은 물론 저속의 RPM인 상태에서 주행이 이루어질 경우, 배기파이프(10)내에서 분기격벽(20)에 의해 분기된 제 1 유로(A)는 개폐밸브(30)의 유로막(31)에 의해 차단된다. First, when the vehicle is driven at a low RPM as well as an idle RPM, the first flow path A branched by the branch partition wall 20 in the exhaust pipe 10 is the flow path membrane of the on-off valve 30. Blocked by 31.

즉, 상기 유로막(31)은 차량이 저속구간으로 주행이 이루어질 때, 후단에 위치하는 스프링(32)의 탄성력에 의해 상기 제 1 유로(A)를 차단하게 되는 것이다. That is, the flow path film 31 is to block the first flow path (A) by the elastic force of the spring 32 located at the rear end when the vehicle is traveling in a low speed section.

그러면, 상기 배기파이프(10)의 입구(1)를 통해 유입되는 배기가스가 유로막(31)에 의해 막힌 제 1 유로(A)로 유입됨과 동시에 제 2 유로(B)를 통해 출구(2)의 방향으로 그 배출이 이루어진다. Then, the exhaust gas flowing through the inlet 1 of the exhaust pipe 10 flows into the first flow path A blocked by the flow path film 31 and at the same time the outlet 2 through the second flow path B. It is discharged in the direction of.

이때, 상기 제 1 유로(A)는 유입이 이루어지는 배기가스의 유입량에 따라 압력이 상승하게 되는 바, At this time, the first flow path (A) is the pressure is increased in accordance with the inflow amount of the exhaust gas is introduced,

상기 제 1 유로(A)에서 상승하는 압력으로 인해, 소음(Idle Booming)은 물론 저속구간의 RPM에서 초래되는 저주파수 소음이 줄어들 수 있게 된다. Due to the pressure rising in the first flow path (A), it is possible to reduce the noise (Idle Booming), as well as the low frequency noise caused by the RPM of the low speed section.

또한, 차량이 중속구간의 RPM인 상태에서 주행이 이루어질 경우, 배기파이프(10)내에서 분기격벽(20)에 의해 분기된 제 1 유로(A)는 개폐밸브(30)의 유로막(31)에 의해 차단되지만, 상기 유로막(31)은 스프링(32)을 압축시키면서 배기파이프(10)의 출구(2) 방향으로 밀리고, 이에따라 상기 분기격벽(20)에 마련된 미세구멍(21)은 약간 오픈시킨다. In addition, when the vehicle is driven in the state of RPM of the intermediate speed section, the first flow path A branched by the branch partition wall 20 in the exhaust pipe 10 is the flow path film 31 of the on-off valve 30. Although blocked by, the flow path film 31 is pushed in the direction of the outlet 2 of the exhaust pipe 10 while compressing the spring 32, and thus the microholes 21 provided in the branch partition wall 20 are slightly open. Let's do it.

그러면, 상기 배기파이프(10)의 입구(1)를 통해 유입되는 배기가스가 유로막(31)에 의해 막힌 제 1 유로(A)로 유입됨과 동시에 제 2 유로(B)를 통해 출구(2)의 방향으로 그 배출이 이루어질 때, 상기 제 1 유로(A)에 유입된 배기가스는 상기의 미세구멍(21)을 통해 제 2 유로(B)로 그 흐름이 미세하게 안내되고, 이에따라 상기 배기파이프(10)내의 배압은 물론 NVH의 튜닝이 이루어질 수 있게 되는 것이다. Then, the exhaust gas flowing through the inlet 1 of the exhaust pipe 10 flows into the first flow path A blocked by the flow path film 31 and at the same time the outlet 2 through the second flow path B. When the discharge is made in the direction of, the exhaust gas introduced into the first flow path A is guided finely to the second flow path B through the micro holes 21, and accordingly, the exhaust pipe The back pressure in (10) as well as the tuning of the NVH can be made.

한편, 고속구간의 RPM으로 차량의 주행이 이루어질 경우, 배기파이프(10)내에서 분기격벽(20)에 의해 분기된 제 1 유로(A)를 막고 있던 개폐밸브(30)의 유로막(31)은 스프링(32)을 완전 압축시키면서, 상기 제 1 유로(A)를 완전 오픈시킨다. On the other hand, when the vehicle travels at the RPM of the high speed section, the flow path film 31 of the open / close valve 30 blocking the first flow path A branched by the branch partition wall 20 in the exhaust pipe 10. Fully opens the first flow path A while fully compressing the spring 32.

그러면, 상기 배기파이프(10)의 입구(1)를 통해 유입되는 배기가스는 상기 제 1,2 유로(A)(B)를 통해 출구(2)의 방향으로 그 배출이 이루어짐으로써, 상기 배기파이프(10)내의 압력은 저하되고, 이에따라 차량은 최고 RPM에서 최고의 엔진 출력을 얻을 수 있게 되는 것이다. Then, the exhaust gas flowing through the inlet 1 of the exhaust pipe 10 is discharged in the direction of the outlet 2 through the first and second flow paths A and B, thereby exhausting the exhaust pipe. The pressure in (10) is lowered so that the vehicle can obtain the best engine power at the highest RPM.

이상에서 설명한 바와같이 본 발명은 배기파이프내에 미세구멍이 마련된 분기격벽을 마련한 후, 상기 분기격벽에 의해 분기되는 복수개의 유로 중 어느 하나에는 배기가스의 배출량은 물론 RPM에 따라 개폐가 이루어지는 개폐밸브를 구성함으로써, 배기유량이 적을 경우에는 개폐의 면적을 작게 하고, 배기유량이 많을 경우에는 개폐의 면적을 넓게 하면서 배기유량 및 RPM의 변화량에 따른 배압 및 소음특성을 정교하게 개선하는 효과가 있다. As described above, the present invention provides a branched partition having fine holes in the exhaust pipe, and any one of a plurality of flow paths branched by the branched partition has an opening / closing valve which opens and closes according to RPM as well as the amount of exhaust gas. In this case, when the exhaust flow rate is small, the area of opening and closing is made small, and when the exhaust flow rate is large, the opening and closing area is widened, and the back pressure and noise characteristics in accordance with the change amount of the exhaust flow rate and RPM are precisely improved.

Claims (3)

입구과 출구과 마련된 배기파이프를 구성함에 있어서, In constructing the exhaust pipe provided with the inlet and outlet, 상기 배기파이프의 내부에는 유로를 제 1,2 유로로 분기시키기 위한 분기격벽을 형성하고, A branch partition wall is formed inside the exhaust pipe to branch the flow path into the first and second flow paths. 상기 분기격벽에 의해 분기된 제 1 유로에는 배기가스의 배기유량 및 RPM의 변화량에 따라 개폐가 이루어지는 개폐밸브를 형성함을 특징을 하는 배기파이프의 유로 조절장치. The opening and closing valve of the exhaust pipe, characterized in that the opening and closing valve is formed in the first flow path branched by the branch partition wall in accordance with the exhaust flow rate and the RPM change amount of the exhaust gas. 제 1 항에 있어서, 상기 분기격벽에는, The method of claim 1, wherein the branch partition wall, 상기 개폐밸브의 개폐량에 따라 제 1 유로로 유입된 배기가스를 제 2 유로로 안내하는 다수의 미세구멍을 형성함을 특징으로 하는 배기파이프의 유로 조절장치. And a plurality of fine holes for guiding the exhaust gas introduced into the first flow path to the second flow path in accordance with the opening / closing amount of the opening / closing valve. 제 1 항에 있어서, 상기 개폐밸브는, The method of claim 1, wherein the on-off valve, 제 1 유로를 차단하되, 배기가스의 배기유량에 따라 미세구멍 또는 제 1 유로를 개방시키도록 슬라이드 유동하는 유로막 및, A flow path film that blocks the first flow path and slides to open the micro holes or the first flow path according to the exhaust flow rate of the exhaust gas, 상기 유로막의 후단에 위치하면서, 상기 제 1 유로의 개방시 압축작용하는 스프링의 결합구조로 이루어짐을 특징으로 하는 배기파이프의 유로 조절장치. Located at the rear end of the flow path film, the flow path adjusting device of the exhaust pipe, characterized in that the coupling structure of the spring is made to act when the opening of the first flow path.
KR1020050079393A 2005-08-29 2005-08-29 Pathway regulation device for exhaust pipe KR20070027045A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921089B1 (en) * 2007-07-20 2009-10-08 현대자동차주식회사 Multimedia broadcasting service method which uses Mobile communication network
WO2017069927A1 (en) * 2015-10-20 2017-04-27 Cummins Emissions Solutions Inc. Variable geometry exhaust conduit
KR200488398Y1 (en) * 2017-12-13 2019-01-24 김태형 Exhaust gas device for vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921089B1 (en) * 2007-07-20 2009-10-08 현대자동차주식회사 Multimedia broadcasting service method which uses Mobile communication network
WO2017069927A1 (en) * 2015-10-20 2017-04-27 Cummins Emissions Solutions Inc. Variable geometry exhaust conduit
US9932871B2 (en) 2015-10-20 2018-04-03 Cummins Emission Solutions Inc. Variable geometry exhaust conduit
CN108138621A (en) * 2015-10-20 2018-06-08 康明斯排放处理公司 Variable-geometry discharge duct
CN108138621B (en) * 2015-10-20 2019-08-13 康明斯排放处理公司 Variable-geometry exhaust pipe
KR200488398Y1 (en) * 2017-12-13 2019-01-24 김태형 Exhaust gas device for vehicle

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