KR100371203B1 - Exhaust gas reduction device - Google Patents
Exhaust gas reduction device Download PDFInfo
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- KR100371203B1 KR100371203B1 KR10-2000-0073559A KR20000073559A KR100371203B1 KR 100371203 B1 KR100371203 B1 KR 100371203B1 KR 20000073559 A KR20000073559 A KR 20000073559A KR 100371203 B1 KR100371203 B1 KR 100371203B1
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- engine
- exhaust gas
- water pump
- belt
- temperature
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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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
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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
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
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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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0416—Methods of control or diagnosing using the state of a sensor, e.g. of an exhaust gas sensor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
본 발명은 배기가스 감소장치에 관한 것으로서,The present invention relates to an exhaust gas reducing device,
촉매정화기를 이용한 종래의 방법은 엔진 초기시동시 엔진에서 배출되는 배기가스(HC,CO)를 효과적으로 정화하지 못하는 문제점이 있었다. 즉, 상기 촉매정화기는 자체 온도가 활성화온도까지 도달하여야만 최대의 정화기능을 구현할 수 있는데, 냉간시동 초기에는 촉매정화기가 활성화되지 않은 상태이기 때문에 엔진에서 배출되는 배기가스를 잘 정화시키지 못하게되어 차량에서 배출되는 배기가스의 양이 많아지는 문제점이 발생하는 것이다.The conventional method using a catalytic purifier has a problem in that the exhaust gas (HC, CO) emitted from the engine is not effectively purified at the initial start of the engine. That is, the catalytic purifier can realize the maximum purification function only when its temperature reaches the activation temperature, but since the catalytic purifier is not activated at the initial stage of cold start, it is difficult to purify the exhaust gas emitted from the engine. The problem is that the amount of exhaust gas discharged increases.
따라서, 상기 문제점을 해결하기 위한 본 발명은 엔진블럭에 장착되는 워터펌프 풀리의 일단에 벨트의 장력조절을 위한 오토텐셔너를 설치하고, 냉각수의 온도에 따라 상기 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 선택적으로 연결되도록 하는 제어수단을 구성하므로서, 엔진 시동시 냉각수 온도가 일정온도 이하일때 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 연결되지 않도록 하여 워터펌프가 구동하지 않도록 하므로서 엔진 초기 냉간시동시 발생하는 배기가스의 양을 현저히 감소시킬 수 있도록 한 배기가스 감소장치에 관한 것이다.Accordingly, the present invention for solving the above problems is to install an auto-tensioner for tension adjustment of the belt on one end of the water pump pulley mounted on the engine block, the belt is moved to the water pump pulley by moving the auto tensioner in accordance with the temperature of the coolant By configuring the control means to be selectively connected to the engine, when the coolant temperature is lower than a certain temperature when starting the engine by moving the auto-tensioner so that the belt is not connected to the water pump pulley, so that the water pump does not drive, it occurs during the initial cold start The present invention relates to an exhaust gas reducing device capable of significantly reducing the amount of exhaust gas.
Description
본 발명은 배기가스 감소장치에 관한 것으로서, 특히 엔진블럭에 장착되는 워터펌프 풀리의 일단에 벨트의 장력조절을 위한 오토텐셔너를 설치하고, 냉각수의 온도에 따라 상기 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 선택적으로 연결되도록 하는 제어수단을 구성하므로서, 엔진 시동시 냉각수 온도가 일정온도 이하일때 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 연결되지 않도록 하여 워터펌프가 구동하지 않도록 하므로서 냉각수가 순환되지 않음에 따라 냉각수가 조기에 가열되고, 이에의해 엔진이 조기에 웜업 되므로 인해 엔진 초기 냉간시동시 발생하는 배기가스의 양을 현저히 감소시킬 수 있도록 한 배기가스 감소장치에 관한 것이다.The present invention relates to an apparatus for reducing exhaust gas, and in particular, an autotensioner for tension adjustment of a belt is installed at one end of a water pump pulley mounted on an engine block, and the belt is pumped by moving the autotensioner according to the temperature of cooling water. By configuring the control means to be selectively connected to the pulley, when the engine is started, when the coolant temperature is below a certain temperature, the auto tensioner is moved so that the belt is not connected to the water pump pulley so that the water pump does not operate and the coolant is not circulated. According to the present invention relates to an exhaust gas reducing device that can significantly reduce the amount of exhaust gas generated during the initial cold start of the engine because the cooling water is heated early, thereby the engine is warmed up early.
엔진은 혼합기를 연소하고, 그 연소과정에서 발생되는 폭발력을 동력으로 변환시키는 장치이며, 이러한 엔진은 각종 차량에 널리 적용되고 있다.An engine is a device that burns a mixer and converts the explosive power generated in the combustion process into power, and such an engine is widely applied to various vehicles.
하지만, 이러한 엔진은 연소과정에서 발생되는 다량의 배기가스를 대기상에 배출하므로 인해 환경오염을 일으키는 문제점이 있으며, 갈수록 이러한 배기가스 배출량을 규제하는 법규가 각국에서 제정되고 있어서 배기가스를 감소시키는 것은 무엇보다 중요한 일이라 할 수 있다.However, these engines emit a large amount of exhaust gas generated in the combustion process to the atmosphere, thereby causing environmental pollution.Increasingly, laws and regulations regulating the emission of exhaust gas are enacted in each country. The most important thing is that.
배기가스를 감소시키는 방법으로는 촉매를 이용하는 방법이 주로 사용되고 있다.As a method of reducing the exhaust gas, a method using a catalyst is mainly used.
촉매를 이용하는 방법은 삼원촉매를 이용한 촉매정화기를 배기가스 배출단에 설치하여 엔진에서 배출되는 배기가스를 정화하는 것이다.The method using the catalyst is to install a catalytic purifier using a three-way catalyst in the exhaust gas discharge stage to purify the exhaust gas discharged from the engine.
그러나, 촉매정화기를 이용한 방법은 엔진 초기시동시, 특히 저온상태에서의 엔진 초기시동시 엔진에서 배출되는 배기가스(HC,CO)를 효과적으로 정화하지 못하는 문제점이 있었다.However, the method using the catalytic purifier has a problem in that the exhaust gas (HC, CO) emitted from the engine is not effectively purified at the initial startup of the engine, in particular, at the initial startup of the engine at low temperature.
즉, 상기 촉매정화기는 자체 온도가 활성화온도까지 도달하여야만 최대의 정화기능을 구현할 수 있는데, 냉간시동 초기에는 촉매정화기가 활성화되지 않은 상태이기 때문에 엔진에서 배출되는 배기가스를 잘 정화시키지 못하게되어 차량에서 배출되는 배기가스의 양이 많아지는 문제점이 발생하는 것이다.That is, the catalytic purifier can realize the maximum purification function only when its temperature reaches the activation temperature, but since the catalytic purifier is not activated at the initial stage of cold start, it is difficult to purify the exhaust gas emitted from the engine. The problem is that the amount of exhaust gas discharged increases.
따라서, 상기 문제점을 해결하기 위한 본 발명은 엔진블럭에 장착되는 워터펌프 풀리의 일단에 벨트의 장력조절을 위한 오토텐셔너를 설치하고, 냉각수의 온도에 따라 상기 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 선택적으로 연결되도록 하는 제어수단을 구성하므로서, 엔진 시동시 냉각수 온도가 일정온도 이하일때 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 연결되지 않도록 하여 워터펌프가 구동하지 않도록 하므로서 냉각수가 순환되지 않음에 따라 냉각수가 조기에 가열되고, 이에의해 엔진이 조기에 웜업 되므로 인해 엔진 초기 냉간시동시 발생하는 배기가스의 양을 현저히 감소시킬 수 있도록 한 배기가스 감소장치를 제공함을 목적으로 한다.Accordingly, the present invention for solving the above problems is to install an auto-tensioner for tension adjustment of the belt on one end of the water pump pulley mounted on the engine block, the belt is moved to the water pump pulley by moving the auto tensioner in accordance with the temperature of the coolant By configuring the control means to be selectively connected to the engine, when the engine coolant temperature is lower than a certain temperature when moving the auto-tensioner so that the belt is not connected to the water pump pulley so that the water pump does not drive the coolant is not circulated Accordingly, an object of the present invention is to provide an exhaust gas reducing device capable of significantly reducing the amount of exhaust gas generated during cold start of the engine due to the early cooling of the coolant and the early warming of the engine.
상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,
엔진블럭에 크랭크축, 워터펌프 풀리, 오일펌프 풀리, 캠 풀리 등이 벨트로서 연결되어 있는 것에 있어서,In the case where the crankshaft, water pump pulley, oil pump pulley, cam pulley and the like are connected to the engine block as a belt,
상기 워터펌프 풀리의 일단에 벨트의 장력조절을 위한 오토텐셔너를 형성하되, 엔진블럭 내부에 ECU의 제어신호에 따라 출몰하는 피스톤을 갖는 실린더를 형성하고, 상기 피스톤의 끝부분에 오토텐셔너의 회전축이 축지되기위한 결합부를 형성하며,An auto tensioner is formed at one end of the water pump pulley to adjust the tension of the belt, and a cylinder having a piston which is settled in response to the control signal of the ECU is formed inside the engine block, and the rotary shaft of the auto tensioner is formed at the end of the piston. Forms a joint to be moistened,
엔진시동시 냉각수의 온도가 설정치 이하일때 상기 실린더를 구동시켜 오토텐셔너가 하강되도록 하여 벨트가 워터펌프 풀리로부터 이탈되어 워터펌프가 동작하지 않도록 하는 ECU를 더 포함하여 구성된 것을 특징으로 한다.The engine may further include an ECU which drives the cylinder to lower the auto tensioner when the temperature of the coolant is lower than a predetermined value during engine start so that the belt is separated from the water pump pulley so that the water pump does not operate.
도 1 은 본 발명의 배기가스 감소장치를 보인 도면.1 is a view showing an exhaust gas reducing device of the present invention.
도 2 는 본 발명의 배기가스 감소장치를 상세히 보인 도면.2 is a view showing in detail the exhaust gas reducing device of the present invention.
도 3 은 본 발명의 작동과정을 보인 플로우챠트.3 is a flow chart showing the operation of the present invention.
※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing
1 : 엔진블럭 2 : 크랭크축1: engine block 2: crankshaft
3 : 워터펌프 풀리 4 : 오일펌프 풀리3: water pump pulley 4: oil pump pulley
5 : 캠 풀리 6 : 오토텐셔너5: Cam pulley 6: Auto tensioner
7 : 벨트 8 : 회전축,7: belt 8: rotating shaft,
9 : 결합부 10 : 작동간9: coupling part 10: operation
11 : 실린더 12 : ECU11 cylinder 12 ECU
이하, 첨부된 도면 도 1 내지 도 3 을 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 to 3.
도면부호 1 은 엔진블럭을 나타내며, 이 엔진블럭(1)에는 엔진 동력을 이용하여 회전하는 각종 장치가 연결되어 있다.Reference numeral 1 denotes an engine block, and various engines that rotate using engine power are connected to the engine block 1.
즉, 상기 엔진블럭(1)에는 엔진구동시 회전하는 크랭크축(2), 냉각수 순환을 위한 워터펌프 풀리(3), 엔진오일의 순환을 위한 오일펌프 풀리(4), 흡배기밸브의 작동을 위한 캠 풀리(5) 등이 벨트(7)로서 연결되어 있으며, 상기 벨트(7)의 장력을 일정한 수준으로 조절해주기위한 오토텐셔너(6)가 워터펌프 풀리(3)의 일단에 형성된다.That is, the engine block 1 has a crankshaft 2 that rotates when the engine is driven, a water pump pulley 3 for cooling water circulation, an oil pump pulley 4 for circulation of engine oil, and an intake / exhaust valve for operation. The cam pulley 5 and the like are connected as the belt 7, and an autotensioner 6 for adjusting the tension of the belt 7 to a constant level is formed at one end of the water pump pulley 3.
상기 오토텐셔너(6)는 엔진블럭(1) 상에서 상하로 이동가능하게 설치하는 것이 바람직하며, 이 오토텐셔너(6)의 회전축(8)은 후설하는 피스톤(11a)의 끝단에 형성되어있는 결합부(9)에 축지된다.The auto tensioner 6 is preferably installed to be movable up and down on the engine block 1, and the rotation shaft 8 of the auto tensioner 6 is formed at the end of the piston 11a to be rearranged. It is moistened in (9).
엔진블럭(1) 내부에는 상기 오토텐셔너(6)를 상하로 이동시키기 위한 실린더(11)가 장착된다.Inside the engine block 1, a cylinder 11 for moving the auto tensioner 6 up and down is mounted.
실린더(11)에는 ECU(12)의 제어에 따라 출몰하는 피스톤(11a)이 형성되는데, 이 피스톤(11a)의 끝부분에는 앞서 언급한 것과같이 오토텐셔너(6)의 회전축(8)이축지되기위한 결합부(9)가 형성된다.The cylinder 11 is formed with a piston 11a which is retracted under the control of the ECU 12. At the end of the piston 11a, as described above, the rotary shaft 8 of the autotensioner 6 is supported. The coupling part 9 is formed.
ECU(12)는 엔진 시동시 냉각수의 온도에 따라 상기 실린더(11)를 구동시켜 오토텐셔너(6)가 상하 방향으로 이동하도록 한다.The ECU 12 drives the cylinder 11 according to the temperature of the coolant at engine start so that the auto tensioner 6 moves in the vertical direction.
즉, 엔진 시동시 냉각수의 온도가 설정온도 이하일경우 ECU(12)는 실린더(11)를 구동시켜 피스톤(11a)이 몰입되도록 하여 도 2 의 점선도시된 부분과 같이 오토텐셔너(6)가 아래쪽으로 이동되도록 한다.That is, when the temperature of the coolant is lower than the set temperature at the start of the engine, the ECU 12 drives the cylinder 11 to immerse the piston 11a so that the auto-tensioner 6 moves downward as shown in the dotted line of FIG. To be moved.
이와같이 오토텐셔너(6)가 아래쪽으로 이동하면, 벨트(7)가 워터펌프 풀리(3)에 접촉하지 않게되므로 회전력이 워터펌프에 전달되지 않게되어 워터펌프가 구동하지 않게되며, 워터펌프가 구동하지 않음에 따라 냉각수가 엔진 내부를 순환하지 않게되어 냉각수가 조기에 가열되면서 엔진이 빠르게 웜업되므로서 배기가스의 배출량이 현저히 감소하게 되는 것이다.When the auto tensioner 6 moves downward in this way, the belt 7 does not come into contact with the water pump pulley 3 so that the rotational force is not transmitted to the water pump and the water pump is not driven, and the water pump is not driven. As the coolant does not circulate inside the engine, the coolant is heated prematurely and the engine warms up quickly, thereby reducing the amount of exhaust gas.
한편, 엔진 시동시 냉각수의 온도가 설정온도 이상일 경우 ECU(12)는 실린더(11)에서 피스톤(11a)이 출몰된 상태를 그대로 유지토록 하므로서 오토텐셔너(6)에 의해 벨트(7)의 장력이 조절되어 벨트(7)가 워터펌프 풀리(3)에 연결된 상태를 유지하게 되므로서, 엔진 구동시 워터펌프가 동작하여 냉각수가 엔진 내부를 순환하게 되는 것이다.On the other hand, when the temperature of the coolant is higher than the set temperature when the engine starts, the ECU 12 maintains the state in which the piston 11a emerges from the cylinder 11 while the tension of the belt 7 is increased by the auto tensioner 6. Since the belt 7 is adjusted to maintain the state connected to the water pump pulley 3, the water pump operates during engine driving so that the coolant circulates in the engine.
이상에서 설명한 바와같이 본 발명은 엔진블럭에 장착되는 워터펌프 풀리의 일단에 벨트의 장력조절을 위한 오토텐셔너를 설치하고, 냉각수의 온도에 따라 상기 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 선택적으로 연결되도록 하는 제어수단을 구성하므로서, 엔진 시동시 냉각수 온도가 일정온도 이하일때 오토텐셔너를 이동시켜 벨트가 워터펌프 풀리에 연결되지 않도록 하여 워터펌프가 구동하지 않도록 하므로서 냉각수가 순환되지 않음에 따라 냉각수가 조기에 가열되고, 이에의해 엔진이 조기에 웜업 되므로 인해 엔진 초기 냉간시동시 발생하는 배기가스의 양을 현저히 감소시킬 수 있도록 한 배기가스 감소장치를 제공하는 효과를 기대할 수 있다.As described above, the present invention installs an auto-tensioner for tension adjustment of the belt at one end of the water pump pulley mounted on the engine block, and moves the auto-tensioner according to the temperature of the coolant to selectively belt the water pump pulley. By configuring the control means to be connected, when the engine coolant temperature is below a certain temperature, the auto tensioner is moved so that the belt is not connected to the water pump pulley so that the water pump is not driven and thus the coolant is not circulated. Since it is heated prematurely and the engine warms up early, it can be expected to provide an exhaust gas reducing device that can significantly reduce the amount of exhaust gas generated during cold start of the engine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0073559A KR100371203B1 (en) | 2000-12-06 | 2000-12-06 | Exhaust gas reduction device |
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| KR10-2000-0073559A KR100371203B1 (en) | 2000-12-06 | 2000-12-06 | Exhaust gas reduction device |
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| KR20020044595A KR20020044595A (en) | 2002-06-19 |
| KR100371203B1 true KR100371203B1 (en) | 2003-02-06 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09125958A (en) * | 1995-10-31 | 1997-05-13 | Mitsubishi Motors Corp | Engine warming-up promotion cooling device |
| KR970043113U (en) * | 1995-12-19 | 1997-07-29 | Auto Tensioner Adjuster of Automotive Timing Belt | |
| JPH10159874A (en) * | 1996-12-03 | 1998-06-16 | Aisan Ind Co Ltd | Variable driving system for water pump in internal combustion engine |
| KR19980031580A (en) * | 1996-10-31 | 1998-07-25 | 양재신 | Water Pump Drive Controller of Car |
| KR20000034650A (en) * | 1998-11-30 | 2000-06-26 | 김태구 | Apparatus and method for cooling an engine of vehicle |
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2000
- 2000-12-06 KR KR10-2000-0073559A patent/KR100371203B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09125958A (en) * | 1995-10-31 | 1997-05-13 | Mitsubishi Motors Corp | Engine warming-up promotion cooling device |
| KR970043113U (en) * | 1995-12-19 | 1997-07-29 | Auto Tensioner Adjuster of Automotive Timing Belt | |
| KR19980031580A (en) * | 1996-10-31 | 1998-07-25 | 양재신 | Water Pump Drive Controller of Car |
| JPH10159874A (en) * | 1996-12-03 | 1998-06-16 | Aisan Ind Co Ltd | Variable driving system for water pump in internal combustion engine |
| KR20000034650A (en) * | 1998-11-30 | 2000-06-26 | 김태구 | Apparatus and method for cooling an engine of vehicle |
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| KR20020044595A (en) | 2002-06-19 |
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