KR20210037446A - Low noise tuning muffler device - Google Patents

Low noise tuning muffler device Download PDF

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Publication number
KR20210037446A
KR20210037446A KR1020190120087A KR20190120087A KR20210037446A KR 20210037446 A KR20210037446 A KR 20210037446A KR 1020190120087 A KR1020190120087 A KR 1020190120087A KR 20190120087 A KR20190120087 A KR 20190120087A KR 20210037446 A KR20210037446 A KR 20210037446A
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KR
South Korea
Prior art keywords
pipe
exhaust gas
exhaust
noise
casing
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KR1020190120087A
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Korean (ko)
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조수천
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최민우
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Priority to KR1020190120087A priority Critical patent/KR20210037446A/en
Publication of KR20210037446A publication Critical patent/KR20210037446A/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
    • F01N1/08—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
    • 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
    • F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
    • 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
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated

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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

The present invention relates to a low-noise tunning muffler apparatus. The low-noise tunning muffler apparatus includes: a casing fixed to an end of an exhaust pipe of a vehicle, providing an internal space and having an exhaust port formed on one side to discharge exhaust gas; a punched pipe installed in the casing to connect the exhaust pipe with the exhaust port, and having a plurality of holes penetrated on a circumference surface; a sound absorption material filling the inside of the casing to surround the punched pipe; and an exhaust gas guide pipe which is a pipe in which the exhaust gas flows, having an outer circumference surface tightly fixed to the exhaust port and having one end inserted into the punched pipe, while having the outer circumference surface spaced apart from an inner circumference surface of the punched pipe to form a gap such that the exhaust gas and a noise can flow in the gap. Therefore, the present invention is capable of enabling output corresponding to the level of a high-noise and high-output tunning muffler.

Description

저소음튜닝머플러장치{Low noise tuning muffler device}Low noise tuning muffler device

저소음 튜닝머플러 기술Low noise tuning muffler technology

본 발명은 튜닝머플러에 관한 것으로서 보다 상세하게는 엔진으로부터 발생하는 소음의 흐름을 머플러내에서 소정경로 로 유도함으로써 일반 격벽식 머플러수준의 소음만을 발생하도록 구성된 저소음 튜닝머플러에 관한 것이다.The present invention relates to a tuning muffler, and more particularly, to a low-noise tuning muffler configured to generate only noise equivalent to a general bulkhead muffler by inducing a flow of noise generated from an engine to a predetermined path within the muffler.

본 발명은 상기 문제점을 해소하고자 창출한 것으로, 내부에 배기가스유도관을 설치하여 상기 배기가스유도관으로 하여금 엔진으로부터 발생하는 배기가스 및 소음의 흐름을 소정경로로 유도하여, 액티브노이즈콘트롤(active noise control) 원리에 의해 소음이 상쇄되도록 함으로써 일반 격벽식 머플러에서와 같은 정도의 소음만을 발생하고 또한 일반적인 고소음 고출력 튜닝머플러 수준의 출력을 낼 수 있도록 구성한 저소음 튜닝머플러를 제공함에 목적이 있다.The present invention was created to solve the above problems, by installing an exhaust gas guide pipe inside to guide the exhaust gas guide pipe to the flow of exhaust gas and noise generated from the engine in a predetermined path, The purpose of this is to provide a low-noise tuning muffler configured to produce the same level of noise as that of a general bulkhead muffler by canceling the noise according to the principle of noise control) and to produce output comparable to that of a general high-noise, high-power tuning muffler.

상기와 같이 이루어지는 본 발명의 저소음 튜닝머플러는, 내부에 배기가스유도관을 설치하여 상기 배기가스유도관으로 하여금 엔진으로부터 발생하는 배기가스 및 소음의 흐름을 소정경로로 유도하도록 함으로써 일반 격벽식 머플러에서와 같은 정도의 소음만을 발생하고 또한 일반적인 고소음 고출력 튜닝머플러 수준의 출력을 낼 수 있다.The low-noise tuning muffler of the present invention made as described above has an exhaust gas guide pipe installed therein so that the exhaust gas guide pipe guides the flow of exhaust gas and noise generated from the engine in a predetermined path. It generates only the same level of noise and can output the level of a general high-noise high-power tuning muffler.

상기와 같이 이루어지는 본 발명의 저소음 튜닝머플러는, 내부에 배기가스유도관을 설치하여 상기 배기가스유도관으로 하여금 엔진으로부터 발생하는 배기가스 및 소음의 흐름을 소정경로로 유도하여 계속 배출되는 배기가스 및 소음과 간섭을 통하여 소음이 상쇄되도록 함으로써 일반 격벽식 머플러에서와 같은 정도의 소음만을 발생하고 또한 일반적인 고소음 고출력 튜닝머플러 수준의 출력을 낼 수 있다.The low-noise tuning muffler of the present invention made as described above has an exhaust gas guide pipe installed therein to guide the exhaust gas guide pipe to the flow of exhaust gas and noise generated from the engine in a predetermined path, and continuously discharged exhaust gas and By canceling the noise through noise and interference, it generates only the same level of noise as that of a general bulkhead muffler, and can output the same level as a general high-noise high-power tuning muffler.

도 1은 종래의 튜닝머플러를 도시한 단면도.
도 2는 본 발명의 일 실시예에 따른 저소음 튜닝머플러를 도시한 단면도.
도 3은 본 발명의 일 실시예에 따른 저소음 튜닝머플러에 적용되는 다공파이프를 도시한 사시도.
도 4는 본 발명의 일 실시예에 따른 저소음 튜닝머플러에 적용되는 배기가스유도관을 도시한 절제 사시도.
도 5는 본 발명의 일 실시예에 따른 저소음 튜닝머플러에서의 배기가스 및 소음의 흐름을 설명하기 위하여 일부 도시한 도면.
도 6은 액티브노이즈콘트롤(active noise control)에 의한 소음감소 효과를 나타내 보인 도면.1 is a cross-sectional view showing a conventional tuning muffler.
2 is a cross-sectional view showing a low-noise tuning muffler according to an embodiment of the present invention.
3 is a perspective view showing a porous pipe applied to a low-noise tuning muffler according to an embodiment of the present invention.
4 is a cut-away perspective view showing an exhaust gas induction pipe applied to a low-noise tuning muffler according to an embodiment of the present invention.
5 is a view partially showing the flow of exhaust gas and noise in the low-noise tuning muffler according to an embodiment of the present invention.
6 is a view showing the effect of reducing noise by active noise control.

상기 목적을 달성하기 위하여 본 발명은, 자동차 배기관의 단부에 고정되며 내부공간을 제공하는 것으로 일측부에는 배기가스가 빠져나가는 배기구가 형성되어 있는 케이싱과; 상기 케이싱의 내부에 설치되어 상기 배기관과 배기구를 연결하며 원주면에는 다수의 구멍이 관통 형성되어 있는 타공파이프와; 상기 케이싱 내부에 충진되어 타공파이프를 감싸는 흡음재와; 배기가스가 내부 유동하는 파이프로서 상기 배기구에 그 외주면이 밀착 고정되고 일단부가 타공파이프의 내측으로 소정길이 연장되되, 타공파이프의 내주면으로부터 그 외주면이 이격되어 틈새를 이룸으로써 틈새내부로도 배기가스 및 소음이 유동하도록 하는 배기가스유도관을 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention is fixed to an end portion of an exhaust pipe of an automobile and provides an internal space, and a casing having an exhaust port through which exhaust gas exits is formed at one side thereof; A perforated pipe installed inside the casing to connect the exhaust pipe and the exhaust port and having a plurality of holes formed through the circumferential surface thereof; A sound-absorbing material that is filled inside the casing to surround the perforated pipe; As a pipe through which exhaust gas flows inside, its outer circumferential surface is tightly fixed to the exhaust port and one end extends a predetermined length to the inside of the perforated pipe. It characterized in that it comprises an exhaust gas guide pipe to allow the noise to flow.

또한, 상기 배기가스유도관의 일단부의 선단은 반지름방향으로 확관되어 확관부를 이루고, 타단부는 배기구를 통해 케이싱 외부로 연장되며 확장된 디퓨져를 이루는 것을 특징으로 한다.In addition, the tip of one end of the exhaust gas guide pipe is expanded in a radial direction to form an expansion pipe, and the other end extends to the outside of the casing through the exhaust port to form an expanded diffuser.

아울러, 상기 배기가스유도관의 내경은 타공파이프 내경의 70% 내지 80%이며, 타공파이프에 대한 배기가스유도관의 삽입깊이는 타공파이프 길이의 1/4 내지 1/2인 것을 특징으로 한다. 또한, 상기 타공파이프의 구멍 중 배기가스유도관의 외주면과 마주하는 구멍의 직경은 다른 부위에 형성한 구멍 직경의 15 내지 25배 큰 것을 특징으로 한다. 또한, 상기 확관부는 나팔형으로 만곡형성되어 그 내측면으로는 타공파이프를 통해 유동하는 배기가스를 배기가스유도관 내부로 유도하고 외측면으로는 배기가스유도관과 타공파이프의 틈새 사이로 유동한 배기가스를 흡음재 및 배기통로 측으로 유도하는 것을 특징으로 한다.In addition, the inner diameter of the exhaust gas guide pipe is 70% to 80% of the inner diameter of the perforated pipe, and the insertion depth of the exhaust gas guide pipe to the perforated pipe is characterized in that 1/4 to 1/2 of the length of the perforated pipe. In addition, among the holes of the perforated pipe, the diameter of the hole facing the outer circumferential surface of the exhaust gas guide pipe is 15 to 25 times larger than the diameter of the hole formed in the other part. In addition, the expansion part is curved in a trumpet shape and guides the exhaust gas flowing through the perforated pipe to the inside of the exhaust gas guide pipe, and flows between the gap between the exhaust gas guide pipe and the perforated pipe to the outer surface. It is characterized in that the exhaust gas is guided toward the sound absorbing material and the exhaust passage.

10:튜닝머플러 12,32:케이싱
14,34:타공파이프 16,40:구멍
18:흡음재 20,38:디퓨져(diffuser)
22:배기통로 24:배기관
30:저소음 튜닝머플러 36:배기가스유도관
42:확관부 44:배기구10: tuning muffler 12, 32: casing
14, 34: perforated pipe 16, 40: hole
18: sound absorbing material 20, 38: diffuser
22: exhaust passage 24: exhaust pipe
30: low noise tuning muffler 36: exhaust gas induction pipe
42: expansion part 44: exhaust

Claims (5)

자동차 배기관(24)의 단부에 고정되며 내부공간을 제공하는 것으로 일측부에는 배기가스가 빠져나가는 배기구(44)가 형성되어 있는 케이싱(32)과; 상기 케이싱(32)의 내부에 설치되어 상기 배기관(24)과 배기구(44)를 연결하며 원주면에는 다수의 구멍(16,40)이 관통 형성되어 있는 타공파이프(34)와; 상기 케이싱(32) 내부에 충진되어 타공파이프(34)를 감싸는 흡음재(18)와 배기가스가 내부 유동하는 파이프로서 상기 배기구(44)에 그 외주면이 밀착 고정되고 일단부가 타공파이프(34)의 내
측으로 소정길이 연장되되, 타공파이프(34)의 내주면으로부터 그 외주면이 이격되어 틈새를 이룸으로써 틈새내부로도 배기가스 및 소음이 유동하도록 하는 배기가스유도관(36)을 포함하는 것을 특징으로 하는 저소음 튜닝머플러.A casing 32 which is fixed to an end of the exhaust pipe 24 and provides an internal space, and has an exhaust port 44 through which exhaust gas exits; A perforated pipe 34 installed inside the casing 32 to connect the exhaust pipe 24 and the exhaust port 44 and having a plurality of holes 16 and 40 penetrating through the circumferential surface thereof; A sound-absorbing material 18 filled in the casing 32 and enclosing the perforated pipe 34 and exhaust gas flow inside. The outer circumferential surface thereof is closely fixed to the exhaust port 44, and one end thereof
Low noise, characterized in that it includes an exhaust gas guide pipe 36 extending a predetermined length toward the side, and allowing exhaust gas and noise to flow into the gap by forming a gap by being spaced apart from the inner circumferential surface of the perforated pipe 34 Tuning muffler. 제 1항에 있어서, 상기 배기가스유도관(36)의 일단부의 선단은 반지름방향으로 확관되어 확관부(42)를 이루고, 타단부는 배기구(44)를 통해 케이싱(32) 외부로 연장되며 확장된 디퓨져(38)를 이루는 것을 특징으로 하는 저소음 튜닝머플러.According to claim 1, The end of one end of the exhaust gas induction pipe (36) is expanded in a radial direction to form an expansion pipe (42), and the other end extends to the outside of the casing (32) through the exhaust port (44) and expands. Low noise tuning muffler, characterized in that to form a diffuser (38). 제 1항에 있어서,상기 배기가스유도관(36)의 내경은 타공파이프(34) 내경의 70% 내지 80%이며, 타공파이프(34)에 대한 배기가스유도관(36)의 삽입깊이는 타공파이프(34) 길이의 1/4 내지 1/2인 것을 특징으로 하는 저소음 튜닝머플러.According to claim 1, The inner diameter of the exhaust gas induction pipe (36) is 70% to 80% of the inner diameter of the perforated pipe (34), and the insertion depth of the exhaust gas induction pipe (36) to the perforated pipe (34) is perforated. Low noise tuning muffler, characterized in that 1/4 to 1/2 of the length of the pipe (34). 제 3항에 있어서, 상기 타공파이프(34)의 구멍(16,40) 중 배기가스유도관(36)의 외주면과 마주하는 구멍(40)의 직경은 다른 부위에 형성한 구멍(16) 직경의 15 내지 25배 큰 것을 특징으로 하는 저소음 튜닝머플러.According to claim 3, Of the holes (16, 40) of the perforated pipe (34), the diameter of the hole (40) facing the outer circumferential surface of the exhaust gas induction pipe (36) is the diameter of the hole (16) formed in another part. Low noise tuning muffler, characterized in that 15 to 25 times larger. 제 2항에 있어서,
상기 확관부(42)는 나팔형으로 만곡형성되어 그 내측면으로는 타공파이프(34)를 통해 유동하는 배기가스를 배기가스 유도관(36) 내부로 유도하고 외측면으로는 배기가스유도관(36)과 타공파이프(34)의 틈새 사이로 유동한 배기가스를 흡음재(18) 및 배기통로(22)측으로 유도하는 것을 특징으로 하는 저소음 튜닝머플러.The method of claim 2,
The expansion part 42 is curved in a trumpet shape, and guides the exhaust gas flowing through the perforated pipe 34 into the exhaust gas guide pipe 36 on the inner surface thereof, and the exhaust gas guide pipe ( 36) and a low-noise tuning muffler, characterized in that the exhaust gas flowing through the gap between the perforated pipe (34) is guided toward the sound absorbing material (18) and the exhaust passage (22).
KR1020190120087A 2019-09-27 2019-09-27 Low noise tuning muffler device KR20210037446A (en)

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