KR200145072Y1 - Injector - Google Patents
Injector Download PDFInfo
- Publication number
- KR200145072Y1 KR200145072Y1 KR2019950035899U KR19950035899U KR200145072Y1 KR 200145072 Y1 KR200145072 Y1 KR 200145072Y1 KR 2019950035899 U KR2019950035899 U KR 2019950035899U KR 19950035899 U KR19950035899 U KR 19950035899U KR 200145072 Y1 KR200145072 Y1 KR 200145072Y1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel injection
- needle valve
- valve
- needle
- valve seat
- Prior art date
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
본 고안은 가솔린 엔진용 연료분사장치의 인젝터에 관한 것으로서, 연료분사공의 주위에 생성되는 스케일을 제거하여 적정한 연료분사가 이루어지도록 한 것이다.The present invention relates to an injector of a fuel injection device for a gasoline engine, and removes the scale generated around the fuel injection hole so that proper fuel injection is achieved.
본 고안은 하우징(1)의 선단에 밸브 시트(2)를 형성하여 복수개의 연료분사공(3)을 뚫음과 동시에 밸브 시트(2)에 접촉되게 니들 밸브(4)를 설치하며, 상기 니들 밸브(4)를 도시하지 않은 전자 제어기의 신호에 의하여 솔레노이드 코일(5)에 전류가 흐르면 개방되도록 한 것에 있어서, 상기 니들 밸브(4)의 저면에 연료분사공(3)을 따라서 승강되는 니들(6)을 설치하여서 된 것이다.The present invention forms a valve seat (2) at the tip of the housing (1) to drill a plurality of fuel injection holes (3) and at the same time install a needle valve (4) to contact the valve seat (2), the needle valve In the case where electric current flows in the solenoid coil 5 by a signal of an electronic controller (not shown), needle 6 which is elevated along the fuel injection hole 3 on the bottom of the needle valve 4 is opened. This is done by installing
Description
제1도는 본 고안의 실시예의 일부절결 측면도로서,1 is a partially cutaway side view of an embodiment of the present invention,
제1a도는 니들 밸브의 폐쇄상태도.Figure 1a is a closed state of the needle valve.
제1b도는 니들 밸브의 개방상태도.Figure 1b is an open state of the needle valve.
제2도는 종래의 것의 일부절결 측면도.2 is a partially cutaway side view of the conventional one.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 하우징 2 : 밸브 시트1: housing 2: valve seat
3 : 연료분사공 4 : 니들 밸브3: fuel injection hole 4: needle valve
6 : 니들6: needle
본 고안은 가솔린 엔진용 연료분사장치의 인젝터에 관한 것이며, 특히 연료분사공을 복수개 설치한 인젝터의 연료분사공 청소구조에 관한 것이다.The present invention relates to an injector of a fuel injection device for a gasoline engine, and more particularly, to a fuel injection hole cleaning structure of an injector provided with a plurality of fuel injection holes.
주지하는 바와 같이 가솔린 엔진용 연료분사장치의 인젝터는 엔진의 회전수, 흡입공기량, 스타트 신호, 스로틀밸브 개방도, 냉각수 온도, 흡기온도에 의하여 제어되는 전자제어기의 신호에 의하여서 니들 밸브의 개방시간을 결정하여 흡기매니폴드로 연료를 분사시키는 것으로서, 종래의 인젝터는 제2도에 도시한 바와 같이 하우징(1)의 선단에 밸브 시트(2)를 형성하여 니들 밸브(4)에 의하여 개폐하도록 되어 있고, 밸브 시트(2)에는 복수개의 연료분사공(3)을 뚫으며, 전자제어기의 신호에 의하여 솔레노이드 코일(5)에 전류가 흐르면 플런저가 흡인되고 플런저와 일체로 형성된 니들 밸브(3)가 밸브 시트(2)를 개방하므로서 연료분사공(4)을 통하여 연료가 분사되도록 되어있다.As is well known, the injector of a fuel injection device for a gasoline engine has an opening time of a needle valve by a signal of an electronic controller controlled by an engine speed, an intake air amount, a start signal, a throttle valve opening degree, a coolant temperature, and an intake temperature. In order to inject fuel into the intake manifold, the conventional injector forms a valve seat 2 at the front end of the housing 1 as shown in FIG. 2 to be opened and closed by the needle valve 4. In addition, a plurality of fuel injection holes 3 are drilled in the valve seat 2, and when a current flows in the solenoid coil 5 by a signal of the electronic controller, the plunger is sucked and the needle valve 3 integrally formed with the plunger is provided. The fuel is injected through the fuel injection hole 4 by opening the valve seat 2.
그러나 인젝터의 연료분사공(4)은 분사되는 연료 및 흡입 밸브와 배기 밸브의 오버랩시에 역류되는 배기가스에 의하여 연료분사공(4)의 주위가 오염되어서 스케일이 생성되므로 분사되는 연료량이 감소하거나 불완전한 분사가 이루어져서 불완전한 연소 또는 출력저하의 원인이 되고 있다.However, the fuel injection hole 4 of the injector is contaminated around the fuel injection hole 4 by the fuel injected and the exhaust gas flowing back when the intake valve and the exhaust valve overlap so that the scale is generated, so the amount of fuel injected is reduced or Incomplete spraying may result in incomplete combustion or reduced power output.
본 고안은 상기한 문제점을 시정하기 위하여 연료분사공의 주위에 생성되는 스케일을 제거하여 적정한 연료분사가 이루어지도록 한 인젝터를 제공하는 것을 목적으로 한다.The object of the present invention is to provide an injector in which a proper fuel injection is achieved by removing the scale generated around the fuel injection hole to correct the above problem.
본 고안은 상기한 목적을 달성하기 위하여 하우징의 선단에 밸브 시트를 형성하여 복수개의 연료분사공을 뚫음과 동시에 밸브 시트를 개폐하는 니들 밸브를 설치하며, 상기 니들 밸브를 전자제어기의 신호에 의하여 솔레노이드 코일에 전류가 흐르면 개방되도록 한 것에 있어서, 상기 니들 밸브의 저면에 연료분사공을 따라서 승강되는 니들을 설치하여서 된 것이다.The present invention provides a needle valve for opening and closing the valve seat at the same time to form a valve seat at the front end of the housing to puncture a plurality of fuel injection holes to achieve the above object, the solenoid valve by the signal of the electronic controller In order to open when the current flows through the coil, the needle is lifted along the fuel injection hole on the bottom of the needle valve.
이하 실시예를 도면에 의하여 설명한다.Embodiments will be described below with reference to the drawings.
본 고안은 제1a도, 제1b도에 도시한 바와 같이 하우징(1)의 선단에 밸브 시트(2)를 형성하여 복수개의 연료분사공(3)을 뚫음과 동시에 밸브 시트(2)에 접촉되게 니들 밸브(4)를 설치하며, 상기 니들 밸브(4)를 도시하지 않은 전자제어기의 신호에 의하여 솔레노이드 코일(5)에 전류가 흐르면 개방되도록 한 것에 있어서, 상기 니들 밸브(4)의 저면에 연료분사공(3)을 따라서 승강되는 니들(6)을 설치하여서 된 것이다.According to the present invention, as illustrated in FIGS. 1A and 1B, the valve seat 2 is formed at the front end of the housing 1 so that the plurality of fuel injection holes 3 are drilled to be brought into contact with the valve seat 2. The needle valve 4 is provided, and the needle valve 4 is opened to open when the current flows through the solenoid coil 5 by a signal of an electronic controller (not shown). It is made by installing the needle (6) to be elevated along the injection hole (3).
미설명부호7은 연료유입공이다.Reference numeral 7 denotes a fuel inlet hole.
이상과 같이 본 고안은 전자제어기에 의하여 솔레노이드 코일(5)에 전류가 흐르면 밸브 시트(2)에서 니들 밸브(4)가 개방되어 연료유입공(7)으로 유입되는 연료가 연료분사공(3)으로 분사되고, 솔레노이드 코일(5)에 전류가 차단되면 니들 밸브(4)가 폐쇄되는 동작을 반복할 때 그 선단에 설치한 니들(6)도 연료분사공(3)을 따라서 승강하면서 연료분사공(3)에 생성되는 스케일을 제거하므로서 연료분사공(3)의 단면적은 항상 동일하여 연료의 분사량이 정확하고 분사도 정상적으로 이루어지게 되는 것이다.As described above, when the current flows through the solenoid coil 5 by the electronic controller, the needle valve 4 is opened in the valve seat 2 so that the fuel flowing into the fuel inlet hole 7 is injected into the fuel injection hole 3. Is injected to the solenoid coil 5, and when the current is cut off, the needle 6 installed at the distal end of the needle valve 4 is also lifted along the fuel injection hole 3 while the needle valve 4 is closed. By removing the scale generated in (3), the cross-sectional area of the fuel injection hole 3 is always the same so that the injection amount of the fuel is accurate and the injection is normally performed.
이상과 같은 본 고안은 니들 밸브의 저면에 니들을 설치하여 니들 밸브가 밸브 시트를 개폐할 때 함께 승각하면서 연료분사공에 생성된 스케일을 제거하도록 하였으므로 연료분사공의 단면적은 항상 동일하여 연료분사량이 일정하고 불완전한 분사도 방지되어서 연료의 완전연소가 가능하고 출력저하도 방지되는 효과가 있는 것이다.The present invention as described above has a needle installed on the bottom of the needle valve to remove the scale generated in the fuel injection hole while elevating the needle valve when opening and closing the valve seat, so that the cross-sectional area of the fuel injection hole is always the same, Constant and incomplete injection is also prevented, so that the fuel can be burned completely and the output is also prevented.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019950035899U KR200145072Y1 (en) | 1995-11-27 | 1995-11-27 | Injector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019950035899U KR200145072Y1 (en) | 1995-11-27 | 1995-11-27 | Injector |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970024138U KR970024138U (en) | 1997-06-20 |
KR200145072Y1 true KR200145072Y1 (en) | 1999-06-15 |
Family
ID=60906943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019950035899U KR200145072Y1 (en) | 1995-11-27 | 1995-11-27 | Injector |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR200145072Y1 (en) |
-
1995
- 1995-11-27 KR KR2019950035899U patent/KR200145072Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR970024138U (en) | 1997-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1662113A3 (en) | Apparatus for operation of engines | |
CA1327297C (en) | Fuel injector assembly for fuel-injected engine | |
EP1249600A3 (en) | Fuel injection control system for internal combustion engine and method | |
KR200145072Y1 (en) | Injector | |
KR960001468A (en) | Gasoline Port Fuel Injector with Extended Tip | |
ATE246312T1 (en) | METHOD AND DEVICE FOR FUEL INJECTION IN COMBUSTION ENGINES | |
JPH09126084A (en) | Fuel injection valve for diesel engine | |
KR100189445B1 (en) | Injector for a hydrogen engine | |
CN100353038C (en) | Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines | |
KR200226819Y1 (en) | Direct Injection Fuel Injection Valves with Variable Spray Angle | |
KR200226822Y1 (en) | Pilot Fuel Injection Valve for Indirect Injection Diesel Engine | |
KR200155783Y1 (en) | Intake valve device for firing of lean mixture on direct injection engine | |
EP1081365A3 (en) | Multiple injection control apparatus and fuel multiple injection control method for diesel engine | |
KR100240841B1 (en) | Jet nozzle for diesel engine having variable jet hall | |
KR200156343Y1 (en) | Apparatus for cutting off leakage oil of the injector for a diesel engine | |
JP4452940B2 (en) | Carburetor starter | |
KR200150234Y1 (en) | Fuel injector for an internal combustion engine | |
KR810000917Y1 (en) | Nozzle switch in oil vapourizing type combustor | |
JPS57135241A (en) | Suction device of internal combustion engine | |
KR200147458Y1 (en) | Intake system for an internal combustion engine | |
KR100205109B1 (en) | Fuel injector control method of vehicle | |
KR100206237B1 (en) | Sub intake apparatus of engine | |
DK1269002T3 (en) | Carburetor for an internal combustion engine | |
KR970027770A (en) | Fuel injection method for output improvement of natural gas engine | |
KR19990005112A (en) | Injector of a car |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
LAPS | Lapse due to unpaid annual fee |