KR19980033497U - Fuel injector with fuel auxiliary injector - Google Patents
Fuel injector with fuel auxiliary injector Download PDFInfo
- Publication number
- KR19980033497U KR19980033497U KR2019960046406U KR19960046406U KR19980033497U KR 19980033497 U KR19980033497 U KR 19980033497U KR 2019960046406 U KR2019960046406 U KR 2019960046406U KR 19960046406 U KR19960046406 U KR 19960046406U KR 19980033497 U KR19980033497 U KR 19980033497U
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- injector
- intake port
- engine
- intake
- Prior art date
Links
Classifications
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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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/08—Injectors peculiar thereto
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/60—Fuel-injection apparatus having means for facilitating the starting of engines, e.g. with valves or fuel passages for keeping residual pressure in common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
본 고안의 목적은 엔진 냉간 시동시에 연료를 흡기밸브에 직접 분사토록 하는 연료보조분사기를 마련하므로써 흡기포트 내벽면에 연료가 맺히게 되는 량을 줄여 배기가스 악화를 방지할 수 있는 연료 분사 장치를 제공하는 데 있다.An object of the present invention is to provide a fuel injection device that can prevent the deterioration of exhaust gas by reducing the amount of fuel condensation on the inner wall of the intake port by providing a fuel auxiliary injector that directly injects fuel into the intake valve during cold start of the engine. There is.
상기한 목적을 달성하기 위한 본 고안은 흡기매니폴드(4)와의 접속부인 흡기포트(2) 입구에 마련되어 엔진의 정상 구동시(위밍업된 상태의 구동) 연료를 분사하는 메인인젝터(5)와;The present invention for achieving the above object is provided at the inlet of the intake port (2), which is a connection with the intake manifold (4) and the main injector (5) for injecting fuel during normal operation of the engine (driven in a warmed up state) and ;
엔진의 냉간 시동시 연소실(3)에 접속하는 흡기포트(2) 출구부에 위치하는 흡기밸브(6)에 직접 연료를 분사하는 보조분사기(7)와;An auxiliary injector 7 for directly injecting fuel into the intake valve 6 located at the outlet of the intake port 2 connected to the combustion chamber 3 during cold start of the engine;
를 포함하여 구성되어 있음을 특징으로 한다.Characterized in that comprises a.
Description
본 고안은 냉간 시동시 인젝터에서 분사된 연료가 흡기포트 내벽에 젖게 되는(wetting)연료량을 감소시켜 배기가스 발생량을 감소시킨 보조분사기를 갖는 연료 분사 장치에 관한 것이다.The present invention relates to a fuel injector having an auxiliary injector which reduces the amount of fuel generated by wetting the fuel injected from the injector to the inner wall of the intake port during cold start.
인젝터를 통한 연료 분사 장치는 도 2에 도시하는 것과 같이 공기를 흡기포트(10)로 공급하는 흡기매니폴드(11)와 흡기포트(10)의 접속 경계면에 설치되어 흡기밸브(12)가 열리면 흡기포트(10)를 향해 인젝터(13)에서 연료를 분사하게 된다.As shown in FIG. 2, the fuel injection device through the injector is installed at an interface between the intake manifold 11 and the intake port 10 that supplies air to the intake port 10, and the intake valve 12 is opened. The fuel is injected from the injector 13 toward the port 10.
그러나 상기한 연료분사 방식의 경우 엔진이 충분히 워밍업 되기 이전인 냉간시동시에는 흡기포트(10)의 온도도 낮기 때문에 인젝터(13)에서 분사된 연료가 무화(기화)되지 못하고 흡기포트(10) 내벽에 물방울 형태로 맺히는 현상(wetting)이 일어나 연료의 무화율이 떨어져 연료소비량을 증대시키고 배기가스를 악화시키게 되는 문제점이 지적되고 있다.However, in the case of the fuel injection method, since the temperature of the intake port 10 is also low at the time of cold start before the engine is sufficiently warmed up, the fuel injected from the injector 13 is not atomized (evaporated) and the inner wall of the intake port 10 is formed. Wetting occurs in the form of water droplets in the water, and the atomization rate of the fuel is lowered, which increases fuel consumption and worsens the exhaust gas.
이에 본 고안은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는 바는 엔진 냉간 시동시에 연료를 흡기밸브에 직접 분사토록 하는 연료보조분사기를 마련하므로써 흡기포트 내벽면에 연료가 맺히게 되는 량을 줄여 배기가스 악화를 방지할 수 있는 연료 분사 장치를 제공하는 데 있다.The present invention has been proposed in view of the above problems, and its purpose is to provide a fuel auxiliary injector for directly injecting fuel into the intake valve during cold start of the engine, thereby reducing the amount of fuel condensation on the inner wall of the intake port. It is to provide a fuel injection device that can reduce the exhaust gas deterioration.
상기한 목적을 달성하기 위한 본 고안은The present invention for achieving the above object
흡기매니폴드와의 접속부인 흡기포트 입구에 마련되어 엔진의 정상 구동시(위밍업된 상태의 구동) 연료를 분사하는 메인인젝터와;A main injector provided at an intake port inlet, which is a connection with the intake manifold, for injecting fuel during normal driving of the engine (drive in a warmed up state);
엔진의 냉간 시동시 연소실에 접속하는 흡기포트 출구부에 위치하는 흡기밸브에 직접 연료를 분사하는 보조분사기와;An auxiliary injector for directly injecting fuel into an intake valve located at an intake port outlet connected to the combustion chamber during cold start of the engine;
를 포함하여 구성되어 있음을 특징으로 한다.Characterized in that comprises a.
도 1은 본 고안에 의한 연료 보조분사기를 구비하는 연료 분사 장치를 나타내는 도면1 is a view showing a fuel injection device having a fuel auxiliary injector according to the present invention
도 2는 종래기술2 is a prior art
※ 도면의주요부분에대한부호의설명※ Explanation of symbols on the main parts of the drawings
1 : 실린더헤드 2 : 흡기포트1: Cylinder head 2: Intake port
3 : 연소실 4 : 흡기매니폴드3: combustion chamber 4: intake manifold
5 : 메인인젝터 6 : 흡기밸브5: main injector 6: intake valve
7 : 보조분사기7: auxiliary injector
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 보조분사기를 구비한 연료 분사 장치를 나타내는 도면으로 도면에 있어서 부호 1은 실린더헤드이며, 부호 2는 연소실(3)에 혼합기를 도입하는 흡기포트이다.1 is a view showing a fuel injection device having an auxiliary injector according to the present invention, in which 1 is a cylinder head, and 2 is an intake port for introducing a mixer into the combustion chamber 3.
흡기포트(2)에는 흡기매니폴드(4)가 접속되고 양측의 접속경계면에는 메인인젝터(5)가 설치되어 있다.The intake manifold 4 is connected to the intake port 2, and the main injector 5 is provided in the connection boundary surface of both sides.
그리고 실린더헤드(1)에는 연소실(3)에 접속되는 흡기포트(2)의 출구부에 위치하는 흡기밸브(6)에 직접 연료를 분사하는 보조분사기(7)가 장착되어 있다.The cylinder head 1 is equipped with an auxiliary injector 7 which directly injects fuel to the intake valve 6 located at the outlet of the intake port 2 connected to the combustion chamber 3.
이에따라 엔진이 시동되어 워밍업 되기 이전인 냉간시동 상태하에서는 상기 메인인젝터(5)는 작동되지 아니하며 상기 보조분사기(7)를 통해 연료를 흡기밸브(6)에 직접 분사하게 되므로 흡기포트(2) 내벽면에 연료가 젖게되는 현상을 피할 수 있게 되며 엔진이 정상화되어, 즉 냉각수온이 정상으로 유지되면 흡기포트(2)도 충분히 가열된 상태이기 때문에 보조분사기(7)를 차단하고 메인인젝터(5)를 통해 연료를 분사하게 되며 이때 흡기포트(2) 내벽면에 부딪히는 연료는 내벽면의 고온의 열에 의해 기화가 촉진되어지게 된다.Accordingly, the main injector 5 is not operated under the cold start state before the engine is started and warmed up, and the fuel is injected directly to the intake valve 6 through the auxiliary injector 7, so that the inner wall surface of the intake port 2 is maintained. This can avoid the phenomenon that the fuel gets wet, and when the engine is normalized, that is, the cooling water temperature is kept normal, the intake port 2 is also sufficiently heated, so the auxiliary injector 7 is shut off and the main injector 5 is shut off. Injecting the fuel through the fuel in this case, the fuel impinging on the inner wall surface of the intake port (2) will be promoted by the high temperature heat of the inner wall surface.
이상과 같은 본 고안에 의하면 종래 흡기포트 입구부에 설치되는 인젝터는 엔진의 정상 작동시(워밍업 상태)에만 연료를 분사토록 하고 엔진의 냉간 시동 상태에서는 별도로 흡기포트 출구부(연소실입구)의 흡기밸브에 직접 연료를 분사하는 보조분사기를 구비하는 것에 의해서 냉간시동시 흡기포트 내벽에 연료가 젖어들어 연료 무화율과 연소효율을 저하시키고 배기가스를 악화시키게 되는 현상을 방지하게 되는 효과가 있다.According to the present invention as described above, the injector conventionally installed at the intake port inlet allows fuel to be injected only during normal operation of the engine (warming up state), and intake valve at the intake port outlet (combustion chamber inlet) is separately in the cold start state of the engine. By providing an auxiliary injector for directly injecting the fuel into the fuel cell, the fuel is wetted on the inner wall of the intake port during cold start, thereby reducing the fuel atomization rate, the combustion efficiency, and the exhaust gas.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960046406U KR19980033497U (en) | 1996-12-07 | 1996-12-07 | Fuel injector with fuel auxiliary injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960046406U KR19980033497U (en) | 1996-12-07 | 1996-12-07 | Fuel injector with fuel auxiliary injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980033497U true KR19980033497U (en) | 1998-09-05 |
Family
ID=53987841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960046406U KR19980033497U (en) | 1996-12-07 | 1996-12-07 | Fuel injector with fuel auxiliary injector |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980033497U (en) |
-
1996
- 1996-12-07 KR KR2019960046406U patent/KR19980033497U/en not_active Application Discontinuation
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