KR20040015407A - Engine intake/exhaust gas compensation device of vehicle - Google Patents
Engine intake/exhaust gas compensation device of vehicle Download PDFInfo
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- KR20040015407A KR20040015407A KR1020020047491A KR20020047491A KR20040015407A KR 20040015407 A KR20040015407 A KR 20040015407A KR 1020020047491 A KR1020020047491 A KR 1020020047491A KR 20020047491 A KR20020047491 A KR 20020047491A KR 20040015407 A KR20040015407 A KR 20040015407A
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- intake
- exhaust
- engine
- pipe
- compensation device
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Classifications
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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
- 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
- F01N13/001—Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
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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
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
- F01N2410/10—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device for reducing flow resistance, e.g. to obtain more engine power
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Characterised By The Charging Evacuation (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
본 발명은 차량의 엔진에 관한 것으로서, 특히 차량의 엔진 흡/배기 보상장치에 관한 것이다.The present invention relates to an engine of a vehicle, and more particularly to an engine intake / exhaust compensator of a vehicle.
통상적으로, 종래에는 엔진의 흡기 효율을 증대시키기 위한 목적으로 흡기 보상 장치를 사용하였다.In general, an intake compensation device has been conventionally used for the purpose of increasing the intake efficiency of the engine.
이러한 흡기 보상 장치의 일종인 가변 흡기 시스템에 의하여 엔진 회전수 및 차속에 따른 공기의 흡입량을 보상하여 엔진 출력을 증대시켰다.The variable intake system, which is one of the intake compensation devices, compensates the intake amount of air according to the engine speed and the vehicle speed to increase the engine output.
그러나, 가변 흡기 시스템을 사용하게되면 늘어난 흡입 공기의 유량에 의한 흡기 간섭(흡기 밸브의 닫힘으로 인한 흡입 공기간의 충돌)도 증대되며, 그에 따른배기 부분의 효율에는 보상이 없었다.However, the use of the variable intake system also increases the intake interference due to the increased flow rate of the intake air (collision between the intake air due to the closing of the intake valve), and there is no compensation for the efficiency of the exhaust portion.
위와 같은 방법을 사용할 때 종래에는 배기 가스의 증대에 따른 배기 압력의 증가로 배기 효율이 저하되는 현상을 초래하는 문제점이 있었다.When the above method is used, there is a problem in that the exhaust efficiency decreases due to an increase in exhaust pressure due to an increase in exhaust gas.
본 발명의 목적은 엔진의 흡기 및 배기 행정시 발생하는 흡/배기의 충돌현상을 보상하여 엔진의 흡/배기 효율을 증대시킬 수 있는 차량의 엔진 흡/배기 보상장치를 제공하는데 있다.An object of the present invention is to provide an engine intake / exhaust compensator of a vehicle that can increase the intake / exhaust efficiency of the engine by compensating for the collision of intake / exhaust generated during the intake and exhaust stroke of the engine.
도 1은 본 발명의 실시예에 따른 차량의 엔진 흡/배기 보상장치의 구성을 도시한 도면.1 is a view showing the configuration of the engine intake / exhaust compensation device of a vehicle according to an embodiment of the present invention.
도 2와 도 3은 본 발명의 실시예에 따른 차량의 엔진 흡/배기 보상장치의 동작상태를 도시한 도면.2 and 3 are views showing the operating state of the engine intake / exhaust compensation device of the vehicle according to an embodiment of the present invention.
상기와 같은 목적을 달성하기 위하여 본 발명은 차량의 엔진 흡/배기 보상장치에 있어서, 흡기 매니폴드와 배기 파이프 사이에 장착되어 상기 흡기 매니폴드로부터 상기 배기 파이프로 공급되는 흡기의 흐름을 안내하는 연결관과; 상기 흡기 매니폴드와 연결관 사이에 결합되며, 상기 엔진의 부압상태에 따라 상기 흡기 매니폴드로부터 상기 배기 파이프로 공급되는 흡기의 흐름을 단속하는 흡기 단속부를 포함하여 구성하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides an engine intake / exhaust compensator for a vehicle, which is mounted between an intake manifold and an exhaust pipe to guide the flow of intake air supplied from the intake manifold to the exhaust pipe. Tube; It is coupled between the intake manifold and the connecting pipe, characterized in that it comprises an intake intermittent for regulating the flow of intake air supplied from the intake manifold to the exhaust pipe in accordance with the negative pressure state of the engine.
이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다. 하기 설명 및 첨부 도면과 같은 많은 특정 상세들이 본 발명의 보다 전반적인 이해를 제공하기 위해 나타나 있으나, 이들 특정 상세들은 본 발명의 설명을 위해 예시한 것으로 본 발명이 그들에 한정됨을 의미하는 것은 아니다. 그리고 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. While many specific details, such as the following description and the annexed drawings, are shown to provide a more general understanding of the invention, these specific details are illustrated for the purpose of explanation of the invention and are not meant to limit the invention thereto. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.
도 1 내지 도 3을 참조하여 본 발명의 실시예에 따른 차량의 엔진 흡/배기 보상장치의 구성을 설명한다.Referring to Figures 1 to 3 will be described the configuration of the engine intake / exhaust compensation device of the vehicle according to an embodiment of the present invention.
본 발명의 실시예는 차량의 엔진 흡/배기 보상장치에 있어서, 연결관(110), 흡기 단속부(120)를 포함한다.Embodiment of the present invention, the engine intake / exhaust compensation device of the vehicle, includes a connection pipe 110, the intake intermittent portion 120.
연결관(110)은 도 1에 도시된 바와 같이 흡기 매니폴드(130)와 배기 파이프(140) 사이에 장착되어 흡기 매니폴드(130)로부터 배기 파이프(140)로 공급되는 흡기의 흐름을 안내한다.The connecting pipe 110 is mounted between the intake manifold 130 and the exhaust pipe 140 as shown in FIG. 1 to guide the flow of intake air supplied from the intake manifold 130 to the exhaust pipe 140. .
여기서, 연결관(110)의 흡입구는 흡입 공기의 충돌을 완화시켜 주는 서지 탱크(Surge Tank)에 연결하는 것이 바람직하다.Here, the inlet port of the connection pipe 110 is preferably connected to a surge tank (Surge Tank) to mitigate the impact of the intake air.
또한, 연결관(110)의 배출구가 배기 파이프(140)에 연결되는 위치는 배기 파이프(140)에 결합되는 산소 센서(150)의 장착 위치 후방으로 하는 것이 바람직하다.In addition, the position where the outlet of the connection pipe 110 is connected to the exhaust pipe 140 is preferably at the rear of the mounting position of the oxygen sensor 150 coupled to the exhaust pipe 140.
연결관(110)의 배출구가 산소 센서(150)의 후방에 위치되어야 하는 이유는 과도한 산소공급으로 인식되어 연료 분사량을 증가시킬 수 있기 때문이다.The reason why the outlet of the connection pipe 110 should be located behind the oxygen sensor 150 is because it can be recognized as excessive oxygen supply and increase the fuel injection amount.
즉, 연결관(110)의 배출구가 산소 센서(150)의 전방에 위치되는 경우 배기 파이프(140)를 통해 배출되는 배출 가스에 연결관(110)을 통해 공급되는 흡기가 더해지게 된다.That is, when the outlet of the connection pipe 110 is located in front of the oxygen sensor 150, the intake air supplied through the connection pipe 110 is added to the discharge gas discharged through the exhaust pipe 140.
이러한 상태에서 산소 센서(150)는 배출 가스에 산소가 많이 포함되어 있는 것으로 판단하여 부정확한 데이터를 엔진 제어부로 공급하게 되는 문제점이 있다.In such a state, the oxygen sensor 150 determines that the exhaust gas contains a large amount of oxygen, thereby supplying incorrect data to the engine controller.
한편, 흡기 단속부(120)는 흡기 매니폴드(130)와 연결관(110) 사이에 결합되며, 엔진의 부압상태에 따라 흡기 매니폴드(130)로부터 배기 파이프(140)로 공급되는 흡기의 흐름을 단속한다.On the other hand, the intake intermittent portion 120 is coupled between the intake manifold 130 and the connection pipe 110, the flow of intake air supplied from the intake manifold 130 to the exhaust pipe 140 in accordance with the negative pressure of the engine To crack down.
흡기 단속부(120)는 도 2 내지 도 3에 도시된 바와 같이 밸브 보디(122), 스풀 밸브(124), 액추에이터(126)를 포함한다.The intake intermittent portion 120 includes a valve body 122, a spool valve 124, and an actuator 126 as shown in FIGS. 2 to 3.
밸브 보디(122)는 흡기 매니폴드(130)와 연결관(110) 사이에 결합되며, 내장되는 스풀 밸브(124)와 함께 흡기의 흐름 통로를 형성한다.The valve body 122 is coupled between the intake manifold 130 and the connection pipe 110, and forms a flow passage of the intake air with the spool valve 124 embedded therein.
스풀 밸브(124)는 밸브 보디(122) 내에 장착되어 흡기 매니폴드(130)로부터 배기 파이프(140)로 공급되는 흡기의 흐름을 단속한다.The spool valve 124 is mounted in the valve body 122 to regulate the flow of intake air supplied from the intake manifold 130 to the exhaust pipe 140.
액추에이터(126)는 도 2와 도 3에 도시된 바와 같이 일단이 스풀 밸브(124)와 연결되며, 타단이 엔진의 부압이 작용하는 흡기 통로에 파이프(128)(또는 호스)를 통해 연결되어 가변되는 엔진 부압에 따라 스풀 밸브(124)의 움직임을 조절한다.As shown in FIGS. 2 and 3, the actuator 126 is connected to the spool valve 124 at one end thereof, and the other end thereof is connected to the intake passage through which the negative pressure of the engine is applied via a pipe 128 (or a hose). The movement of the spool valve 124 is adjusted according to the engine negative pressure.
본 발명의 실시예에 따른 액추에이터(126)는 엔진의 부압을 이용하기 위한 구성으로 다이어프램(Diaphragm)을 이용한 진공 밸브를 사용한다.Actuator 126 according to an embodiment of the present invention uses a vacuum valve using a diaphragm (Diaphragm) as a configuration for using the negative pressure of the engine.
한편, 본 발명의 실시예에서는 액추에이터(126)의 구성을 기계식으로 적용하였으나 전자제어방식으로 구성할 수 있음에 유의해야 한다.On the other hand, in the embodiment of the present invention, the configuration of the actuator 126 is applied mechanically, it should be noted that it can be configured by the electronic control method.
예를 들면, 액추에이터는 엔진의 부압상태에 따라 엔진 제어부를 통해 공급되는 구동 제어신호를 입력받아 스풀 밸브(124)를 단계적으로 구동시키는 스텝 모터를 사용할 수 있다.For example, the actuator may receive a driving control signal supplied through the engine control unit according to the negative pressure of the engine, and may use a stepper motor for driving the spool valve 124 stepwise.
상기한 바와 같이 본 발명의 실시예는 가변 흡기 시스템의 유무에 무관하게흡입 공기의 충돌로 인한 흡입 효율 저하 및 배기 효율의 저하를 방지하고 흡/배기 효율을 동시에 극대화하기 위한 구성을 특징으로 한다.As described above, the embodiment of the present invention is characterized by a configuration for preventing a decrease in suction efficiency and a decrease in exhaust efficiency due to the collision of intake air with or without a variable intake system and maximizing the intake / exhaust efficiency simultaneously.
도 1 내지 도 3을 참조하여 본 발명의 실시예에 따른 차량의 엔진 흡/배기 보상장치의 동작을 설명한다.An operation of the engine intake / exhaust compensator of a vehicle according to an exemplary embodiment of the present invention will be described with reference to FIGS. 1 to 3.
도 2와 도 3은 본 발명의 실시예에 따른 차량의 엔진 흡/배기 보상장치의 동작상태를 도시한 도면이다.2 and 3 are views showing the operating state of the engine intake / exhaust compensation device of the vehicle according to an embodiment of the present invention.
도 2를 참조하면, 엔진의 부압이 액추에이터(126)의 다이어프램을 움직이는 힘보다 작은 경우이다.Referring to FIG. 2, the negative pressure of the engine is smaller than the force for moving the diaphragm of the actuator 126.
즉, 스풀 밸브(124)가 흡기 매니폴드(130)로부터 배기 파이프(140)로 공급되는 흡기의 통로를 막고있는 상태이다.In other words, the spool valve 124 is in a state of blocking the passage of the intake air supplied from the intake manifold 130 to the exhaust pipe 140.
이러한 상태에서 가속 페달을 가압하게 되면 액추에이터(126)는 도 3에 도시된 바와 같이 우측 방향에서 좌측 방향(화살표 방향)으로 움직이게 된다.When the accelerator pedal is pressed in this state, the actuator 126 is moved from the right direction to the left direction (arrow direction) as shown in FIG. 3.
참고적으로, 흡입 밸브 닫힘시 발생하는 흡기 간섭 유량은 가속 페달을 가압하게 되면 더 많이 발생하게 된다.For reference, the intake interference flow rate generated when the intake valve is closed is generated more when the accelerator pedal is pressed.
따라서, 가속 페달 가압시 엔진 부압은 더욱 커지며 이 흡인력은 액추에이터(126)를 작동하게된다.Therefore, when the accelerator pedal is pressurized, the engine negative pressure is further increased and this suction force actuates the actuator 126.
액추에이터(126)의 작동에 따라 스풀 밸브(124)는 흡기 매니폴드(130)로부터 배기 파이프(140)로 공급되는 흡기의 통로를 여는 방향으로 움직이게 된다.As the actuator 126 operates, the spool valve 124 moves in the direction of opening the passage of the intake air supplied from the intake manifold 130 to the exhaust pipe 140.
결국, 스풀 밸브(124)의 움직임에 따라 서지 탱크에서 충진된 흡기는 연결관(110)을 따라 배기 파이프(140)로 공급되어 배기 간섭을 방지하도록 배기관내의 배기 가스를 신속하게 배출시키게 된다.As a result, the intake air filled in the surge tank according to the movement of the spool valve 124 is supplied to the exhaust pipe 140 along the connecting pipe 110 to quickly exhaust the exhaust gas in the exhaust pipe to prevent the exhaust interference.
상술한 바와 같이 본 발명에 따른 차량의 엔진 흡/배기 보상장치는 흡기 및 배기의 충돌현상을 방지하여 출력의 손실부분을 확보할 수 있다.As described above, the engine intake / exhaust compensator of the vehicle according to the present invention can prevent a collision of intake and exhaust to secure a loss portion of the output.
또한, 차량의 연비를 개선할 수 있으며, 기존의 가변 흡기 장치보다 부품 및 가공이 용이하여 공정축소도 가능하다.In addition, the fuel efficiency of the vehicle can be improved, and the process can be reduced since parts and processing are easier than those of the conventional variable intake apparatus.
또한, 엔진의 흡/배기 효율을 증대시킴으로써 원활한 보기류 작동으로 신속한 가/감속 및 소음 진동(NVH) 성능도 개선시킬 수 있는 효과가 있다.In addition, by increasing the intake / exhaust efficiency of the engine there is an effect that can improve the acceleration / deceleration and noise and vibration (NVH) performance by smooth accessory operation.
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KR1020020047491A KR20040015407A (en) | 2002-08-12 | 2002-08-12 | Engine intake/exhaust gas compensation device of vehicle |
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KR1020020047491A KR20040015407A (en) | 2002-08-12 | 2002-08-12 | Engine intake/exhaust gas compensation device of vehicle |
Country Status (1)
Country | Link |
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KR (1) | KR20040015407A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5979022A (en) * | 1982-10-29 | 1984-05-08 | Mitsubishi Motors Corp | Exhaust-gas purifying apparatus for diesel engine |
JPS6346622U (en) * | 1986-09-12 | 1988-03-29 | ||
JPS63179172A (en) * | 1986-12-26 | 1988-07-23 | Mazda Motor Corp | Exhaust gas recirculation device for engine |
JP2000110569A (en) * | 1998-08-04 | 2000-04-18 | Toyota Motor Corp | Assist gas system of internal combustion engine |
-
2002
- 2002-08-12 KR KR1020020047491A patent/KR20040015407A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5979022A (en) * | 1982-10-29 | 1984-05-08 | Mitsubishi Motors Corp | Exhaust-gas purifying apparatus for diesel engine |
JPS6346622U (en) * | 1986-09-12 | 1988-03-29 | ||
JPS63179172A (en) * | 1986-12-26 | 1988-07-23 | Mazda Motor Corp | Exhaust gas recirculation device for engine |
JP2000110569A (en) * | 1998-08-04 | 2000-04-18 | Toyota Motor Corp | Assist gas system of internal combustion engine |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |