KR19980040913U - Fuel atomization accelerator for cold start of engine - Google Patents
Fuel atomization accelerator for cold start of engine Download PDFInfo
- Publication number
- KR19980040913U KR19980040913U KR2019960053994U KR19960053994U KR19980040913U KR 19980040913 U KR19980040913 U KR 19980040913U KR 2019960053994 U KR2019960053994 U KR 2019960053994U KR 19960053994 U KR19960053994 U KR 19960053994U KR 19980040913 U KR19980040913 U KR 19980040913U
- Authority
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- South Korea
- Prior art keywords
- exhaust gas
- exhaust
- intake port
- supply line
- gas supply
- Prior art date
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Classifications
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
- F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0055—Special engine operating conditions, e.g. for regeneration of exhaust gas treatment apparatus
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
- F02D2021/083—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine controlling exhaust gas recirculation electronically
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Analytical Chemistry (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
본 고안의 목적은 배기포트를 통해 배출되는 배기가스의 일부를 직접 흡기포트 측으로 끌여들여 흡기포트를 신속히 가열시키므로써 연료의 무화를 촉진하는 엔진의 냉간시동시 연료 무화 촉진장치를 제공하는데 있다.It is an object of the present invention to provide a fuel atomization promoting device during cold start of an engine that promotes atomization of fuel by drawing a part of the exhaust gas discharged through the exhaust port directly to the intake port side to rapidly heat the intake port.
상기한 목적을 달성하기 위하여 본 고안은 흡기포트를 감싸도록 형성되는 가스재킷과;The present invention is a gas jacket formed to surround the intake port to achieve the above object;
상기 가스재킷과 배기포트를 접속하는 배기가스 공급관로와;An exhaust gas supply line connecting the gas jacket and an exhaust port;
상기 배기가스 공급 관로상에 설치되는 온·오프형 체크밸브와;An on / off check valve installed on the exhaust gas supply line;
상기 가스재킷을 순환하면서 흡기포트를 가열시킨 배기가스를 배출하기 위하여 배기파이프에 접속되는 배출 관로와;A discharge conduit connected to the exhaust pipe for discharging the exhaust gas heated by the intake port while circulating the gas jacket;
냉각수온 센서로부터 측정된 냉각수온이 정상이하인 냉각시동시에는 상기 체크밸브를 온시켜 개방하고 냉각수온이 정상으로 검출시에는 배기가스 공급 관로를 차단토록 제어하는 전자제어장치와; 를 포함하여 구성되는 것을 특징으로 한다.An electronic controller for controlling the exhaust gas supply line to shut off when the cooling water temperature measured by the cooling water temperature sensor is lower than the normal temperature when the cooling valve is turned on, and when the cooling water temperature is detected as normal; Characterized in that comprises a.
Description
본 고안은 엔진의 냉간시동시 연료 무화 촉진장치에 관한 것이다.The present invention relates to a fuel atomization promoting device for cold start of the engine.
엔진의 냉간시동시, 특히 혹한기의 경우 흡기포트에 장착된 인젝터를 통해 분사되는 연료가 주변 온도가 낮아 무화되지 못하고 흡기포트의 내벽면과 흡기 밸브의 표면에 충돌하여 이슬 형태로 맺혀 젖게 되므로써 혼합기 형성이 악화되어 미연 HC 등의 배출량이 크게 증가하게 된다.During cold start of the engine, especially in the case of cold weather, the fuel injected through the injector mounted on the intake port cannot be atomized due to the low ambient temperature, and is formed in the form of dew by colliding with the inner wall surface of the intake port and the surface of the intake valve to form a wet mixture. This worsens and the amount of unburned HC and the like is greatly increased.
이에 본 고안은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는 바는 배기포트를 통해 배출되는 배기가스의 일부를 직접 흡기포트 측으로 끌여들여 흡기포트를 신속히 가열시키므로써 연료의 무화를 촉진하는 엔진의 냉간시동시 연료 무화 촉진장치를 제공하는데 있다.The present invention has been proposed in view of the above-mentioned problems, and an object thereof is to directly draw a part of the exhaust gas discharged through the exhaust port to the intake port side to rapidly heat the intake port, thereby promoting fuel atomization. To provide a fuel atomization accelerator for cold start.
상기한 목적을 달성하기 위하여 본 고안은 흡기포트를 감싸도록 형성되는 가스재킷과;The present invention is a gas jacket formed to surround the intake port to achieve the above object;
상기 가스재킷과 배기포트를 접속하는 배기가스 공급관로와;An exhaust gas supply line connecting the gas jacket and an exhaust port;
상기 배기가스 공급 관로상에 설치되는 온·오프형 체크밸브와;An on / off check valve installed on the exhaust gas supply line;
상기 가스재킷을 순환하면서 흡기포트를 가열시킨 배기가스를 배출하기 위하여 배기파이프에 접속되는 배출 관로와;A discharge conduit connected to the exhaust pipe for discharging the exhaust gas heated by the intake port while circulating the gas jacket;
냉각수온 센서로부터 측정된 냉각수온이 정상이하인 냉간시동시에는 상기 체크밸브를 온시켜 개방하고 냉각수온이 정상으로 검출시에는 배기가스 공급 관로를 차단토록 제어하는 전자제어장치와; 를 포함하여 구성되는 것을 특징으로 한다.An electronic controller for controlling the exhaust gas supply line to be shut off when the coolant temperature measured by the coolant temperature sensor is lower than or equal to the normal temperature when the coolant is started; Characterized in that comprises a.
도 1은 본 고안에 의한 엔진의 냉간시동시 연료 무화 촉진장치를 나타내는 도면1 is a view showing a fuel atomization promoting device during cold start of the engine according to the present invention
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 : 실린더 헤드2 : 흡기포트1: Cylinder head 2: Intake port
3 : 배기포트4 : 가스재킷3: exhaust port 4: gas jacket
5 : 배기가스 공급 관로6 : 온·오프형 체크밸브5: exhaust gas supply line 6: on / off check valve
7 : 배출관로8 : 체크밸브7: discharge line 8: check valve
9 : 전자제어장치10 : 냉각수온 센서9: electronic control device 10: cooling water temperature sensor
11 : 드라이버12 : 인젝트11 driver 12 inject
13 : 흡기밸브13: intake valve
이하 본 고안의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, with reference to the accompanying drawings the configuration and operation of the present invention.
도 1은 본 고안에 의한 엔진의 냉간시동시 연료의 무화 촉진장치를 나타내는 도면으로 도면중 부호 1은 실린더 헤드이며 실린더 헤드(1)에는 흡기 포트(2)와 배기 포트(3)가 형성되어 있다.FIG. 1 is a view showing a fuel atomization promoting device for cold start of an engine according to the present invention. In the drawing, reference numeral 1 denotes a cylinder head, and an intake port 2 and an exhaust port 3 are formed in the cylinder head 1. .
상기 흡기포트(2) 외주에는 가스재킷(4)이 형성되어 있으며 가스재킷(4)과 배기 포트(3) 사이의 배기가스 공급 관로(5)로 연결되어 있다.A gas jacket 4 is formed on the outer circumference of the intake port 2 and is connected to the exhaust gas supply line 5 between the gas jacket 4 and the exhaust port 3.
그리고 상기 배기가스 공급 관로(5)의 도중에는 온·오프형 체크밸브(6)가 설치되어 있어 배기가스가 가스재킷(4) 측으로만 흐르게 되며 또한 상기 체크밸브(6)는 관로(5)의 개폐 기능을 하는 전자밸브이다.In addition, an on / off check valve 6 is provided in the middle of the exhaust gas supply line 5 so that the exhaust gas flows only to the gas jacket 4 side, and the check valve 6 opens and closes the conduit 5. A solenoid valve that functions.
또한 상기 가스재킷(4) 내부를 통과하면서 흡기포트(2)를 가열시키는데 사용된 배기가스는 배출 관로(7)를 통해 배기파이프로 배출되어진다.In addition, the exhaust gas used to heat the intake port 2 while passing through the gas jacket 4 is discharged into the exhaust pipe through the discharge conduit 7.
그리고 상기 배출관로(7)의 도중에도 체크밸브(8)를 선택적으로 설치할 수 있다.In addition, the check valve 8 may be selectively installed in the middle of the discharge line 7.
상기 배기가스 공급 관로(5)상에 설치된 체크밸브(6, 배출관로상의 체크밸브는 필요에 따라 포함)는 전자제어장치(9)의 제어에 따라 온·오프 작동되며 전자제어장치(9)는 냉각수온 센서(10)로부터 측정된 냉각수온 정보에 의해 체크밸브 작동용 드라이버(11)를 구동 제어하게 된다.The check valve 6 provided on the exhaust gas supply line 5 (including the check valve on the exhaust line as necessary) is operated on and off under the control of the electronic controller 9, and the electronic controller 9 is The check valve operation driver 11 is driven and controlled by the coolant temperature information measured by the coolant temperature sensor 10.
여기서 미설명 부호 12는 연료를 분사하는 인젝터이며 13은 흡기밸브이다.Here, reference numeral 12 denotes an injector for injecting fuel and 13 denotes an intake valve.
이와 같은 본 고안은 엔진이 시동되어 웜업되기 전에는 냉각수온 센서(10)로부터 검출되는 냉각수온이 낮은 값을 가지게 되며 이 출력신호를 인가받은 전자제어장치(9)는 드라이버(11)를 구동하여 체크밸브(6)를 개방(on)시킨다.In this invention, before the engine is started and warmed up, the coolant temperature detected by the coolant temperature sensor 10 has a low value, and the electronic controller 9 which receives the output signal checks by driving the driver 11. The valve 6 is turned on.
이에 따라 배기포트(3)를 통해 배출되는 고온의 배기가스가 배기가스 공급 관로(5)를 통해 가스재킷(4)으로 유입되어지게 되며 흡기포트(2)를 통해 도입되는 신기와 인젝터(10)로부터 분사되는 연료를 가열시켜 무화를 촉진하므로써 연료가 흡기포트(2) 내벽면과 흡기밸브(11) 표면에 축축하게 젖는 현상이 방지된다.Accordingly, the hot exhaust gas discharged through the exhaust port 3 is introduced into the gas jacket 4 through the exhaust gas supply line 5, and the new and injector 10 introduced through the intake port 2 is provided. By heating the fuel injected from the gas to promote atomization, the phenomenon that the fuel wets the inner wall surface of the intake port 2 and the surface of the intake valve 11 is prevented.
엔진이 웜업되고 냉각수온 센서(10)로부터 정상 온도가 검출되면 전자제어장치(9)는 드라이버(11)를 구동하여 체크밸브(6)를 폐쇄(off)하여 가스재킷(4)으로 배기가스가 유입되는 것을 차단하므로서 신기와 연료가 너무 가열되어 흡기충진 효율이 저하되는 것을 차단한다.When the engine is warmed up and the normal temperature is detected from the coolant temperature sensor 10, the electronic controller 9 drives the driver 11 to close the check valve 6 so that the exhaust gas is discharged to the gas jacket 4. By blocking the inflow, fresh air and fuel are heated too much to block the intake filling efficiency.
이상과 같은 본 고안은 흡기포트(또는 흡기매니폴드) 외주면에 가스재킷을 설치하고 배기포트(또는 배기매니폴드)와를 직접 연결하므로써 고온의 배기가스의 열을 이용하여 흡기포트를 가열시키는 것이 가능하여 냉간시동시 분사되는 연료의 무화를 촉진하여 연소 효율을 높이고 배기가스 발생량을 저감시키게 되는 효과가 있다.As described above, the gas jacket is installed on the outer circumferential surface of the intake port (or intake manifold) and directly connected to the exhaust port (or exhaust manifold) so that the intake port can be heated by using high temperature exhaust gas heat. By accelerating atomization of fuel injected during cold start, the combustion efficiency is increased and the amount of exhaust gas is reduced.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960053994U KR19980040913U (en) | 1996-12-23 | 1996-12-23 | Fuel atomization accelerator for cold start of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960053994U KR19980040913U (en) | 1996-12-23 | 1996-12-23 | Fuel atomization accelerator for cold start of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980040913U true KR19980040913U (en) | 1998-09-15 |
Family
ID=53993919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960053994U KR19980040913U (en) | 1996-12-23 | 1996-12-23 | Fuel atomization accelerator for cold start of engine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980040913U (en) |
-
1996
- 1996-12-23 KR KR2019960053994U patent/KR19980040913U/en not_active Application Discontinuation
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