KR0127084Y1 - Device for preventing an injection fuel from reflux of an automobile - Google Patents
Device for preventing an injection fuel from reflux of an automobileInfo
- Publication number
- KR0127084Y1 KR0127084Y1 KR2019940038830U KR19940038830U KR0127084Y1 KR 0127084 Y1 KR0127084 Y1 KR 0127084Y1 KR 2019940038830 U KR2019940038830 U KR 2019940038830U KR 19940038830 U KR19940038830 U KR 19940038830U KR 0127084 Y1 KR0127084 Y1 KR 0127084Y1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- guide
- float
- fuel inlet
- spring
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K2015/0458—Details of the tank inlet
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
본 고안은 자동차 연료탱크의 연료주입구에 설치되는 주입연료 역류방지장치에 관한 것으로, 연료탱크에의 연료주입시에 연료가 가득 채워질 시점(FULL상태)에서 연료가 연료주입구로 되뿜어져 나오는 현상을 방지하기 위하여, 가이드 홀(2,2')이 양쪽에 형성된 연료주입구(1)하단에 가이드 보스(7)가 중앙에 형성되는 가이드커버(3)를 고정하고, 이 가이트 커버상의 연료주입구(1)내에 상기 가이드 보스(7)내를 상하운동 할 수 있는 유동축(8)이 형성되는 삿갓형의 플로트(5)를 스프링(4)에 의하여 상향으로 탄력을 받도록 설치한 것이다.The present invention relates to an injection fuel backflow prevention device installed at a fuel inlet of an automobile fuel tank. The present invention relates to a phenomenon in which fuel is pumped back to a fuel inlet when the fuel is filled full (FULL state). In order to prevent this, the guide cover 3 having the guide boss 7 formed in the center is fixed to the lower end of the fuel inlet 1 having the guide holes 2 and 2 'formed on both sides thereof, and the fuel inlet 1 on the guide cover. ) Is installed to receive the elasticity upwards by the spring (4) the hatshade float (5) is formed in which the flow shaft (8) to move up and down within the guide boss (7).
Description
제1도 및 제2도는 본 고안의 실시예로서,1 and 2 is an embodiment of the present invention,
제1도는 연료주입중의 작용상태이고,1 is an operating state during fuel injection,
제2도는 주입완료시의 작용상태이다.2 is a working state at the completion of injection.
제3도는 종래의 주입연료 역류방지장치 종단면도.3 is a longitudinal sectional view of a conventional injection fuel backflow prevention device.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 연료주입구 2,2' : 가이드 홀1: fuel inlet 2,2 ': guide hole
3 : 가이드 커버 4 : 스프링3: guide cover 4: spring
5 : 플로트 7 : 가이드 보스5: float 7: guide boss
8 : 유동축8: flow shaft
본 고안은 자동차 연료탱크의 연료주입구에 설치되는 주입연료 역류방지장치에 관한 것이다.The present invention relates to an injection fuel backflow prevention device installed at the fuel inlet of the vehicle fuel tank.
종래의 연료탱크에는 제3도와 같이 연료주입구(31)하부의 양쪽에 가이드 홀(32,32')을 형성시키고 이 가이드 홀(32,32')내에서 상하방향으로 안내될 수 있는 가이드 플레이트(33,33')가 양쪽 가장자리에 돌출된 삿갓형의 플로트(34)를 연료주입구내에 끼워 화살표방향으로 연료주입기를 이용해 연료를 주입하게 되는데 유면이 낮을 때에는 제3도의 실선과 같이 가이드 홀(32,33')하단에 위치하다가 유면이 높아지면 제3도의 가상선과 같이 플로트(34)가 부상하여 가이드 홀(32,33')상단에 접하므로서 연료주입구(31)가 차단되도록 하고 있었다.In the conventional fuel tank, guide plates 32 and 32 'are formed at both sides of the lower part of the fuel injection hole 31 as shown in FIG. 3, and guide plates which can be guided up and down in the guide holes 32 and 32' ( 33, 33 ') is inserted into the fuel injection port with a hat-shaped float 34 protruding at both edges to inject fuel using the fuel injector in the direction of the arrow. When the oil level is low, the guide hole 32, as shown in FIG. 33 ') at the lower end, when the oil level rises, the float 34 floats like the imaginary line of FIG. 3 and contacts the upper end of the guide holes 32 and 33' so that the fuel injection hole 31 is blocked.
그러나 상기한 플로트(34)는 단순히 주입된 유면을 따라 부상하기 때문에 주입말기에 플로트(34)가 연료주입구(31)를 차단하여야 함에도 불구하고 연료주입기에서 뿜어져 나오는 압력에 의하여 바로 차단되지 않기 때문에 연료가 연료주입구(31) 밖으로 역류되는 현상이 벌어졌던 것이다.However, since the float 34 simply floats along the injected oil level, the float 34 is not immediately blocked by the pressure discharged from the fuel injector despite the fact that the float 34 should block the fuel inlet 31 at the end of the injection. The phenomenon in which the fuel flows back out of the fuel inlet 31 has occurred.
본 고안의 목적은 연료탱크에의 연료주입시에 연료가 가득 채워질 시점(FULL상태)에서 연료가 연료주입구로 되뿜어져 나오는 현상을 방지하기 위한 것이다.An object of the present invention is to prevent the phenomenon that the fuel is pumped back to the fuel inlet when the fuel is filled (FULL state) when the fuel is injected into the fuel tank.
본 고안은 상기 목적을 달성하기 위하여 가이드 홀이 양쪽에 형성된 연료주입구 하단에 가이드 보스가 중앙에 형성되는 가이드 커버를 고정하고, 이 가이드 커버상의 연료주입구내에 상기 가이드 보스내를 상하운동 할 수 있는 유동축이 형성되는 삿갓형의 플로트를 스프링에 의하여 상향으로 탄력을 받도록 설치한 것이다.In order to achieve the above object, the present invention fixes a guide cover having a guide boss formed at the center of a fuel injection hole formed at both ends of guide holes, and can move the guide boss up and down within the fuel injection hole on the guide cover. It is installed to receive the spring-shaped float that is formed coaxially upward by the spring.
이하 실시에 도면에 의하여 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, it demonstrates with drawing.
본 고안은 제1도 및 제2도 도시하는 바와 같이 연료주입구(1) 하부의 양쪽에 가이드 홀 (2,2')을 형성하며 그 단부에 가이드 커버(3)를 고정하고 이 가이드 커버(3)상의 연료주입구(1)내에 스프링(4)과 플로트(5)를 설치한 것이다.The present invention forms guide holes (2, 2 ') on both sides of the lower part of the fuel inlet (1) as shown in FIGS. 1 and 2, and fixes the guide cover (3) at the end thereof and the guide cover (3). The spring 4 and the float 5 are provided in the fuel injection hole 1 of the above.
상기 가이드 커버(3)는 양단에 단착돌기(6,6')가 형성되어 상기 가이드 홀(2,2')에 탄착 결합 되도록 한 것으로, 중앙에는 가이드 보스(7)가 상향으로 돌출되어 있다.The guide cover (3) is formed so that the fixing projections (6, 6 ') at both ends to be in close contact with the guide holes (2, 2'), the guide boss (7) protrudes upward in the center.
상기 플로트(5)는 삿갓형으로서 중앙에 하향으로 유동축(8)이 형성되어 상기 가이드 보스(7)내에 상하유동 가능하게 끼워지는 바, 이 플로트와 가이트 커버(3)간에는 스프링(4)이 설치된다.The float 5 is a hat-shaft and has a flow shaft 8 formed downward in the center thereof, and is fitted into the guide boss 7 so as to flow up and down. A spring 4 is disposed between the float and the guide cover 3. Is installed.
상기 스프링(4)은 연료주입시에 연료주입기에서 뿜어져 나오는 연료압에 의하여 압축될 수 있고 플로트(5)가 액면내에 잠길때 상기 연료압을 이기고 플로트(5)를 가이드 홀(2,2') 상단에 밀착시킬 수 있는 정도의 상수값을 가진다.The spring 4 can be compressed by the fuel pressure spouted from the fuel injector at the time of fuel injection and overcomes the fuel pressure when the float 5 is submerged in the liquid level and guides the float 5 to the guide hole 2, 2 ′. ) It has a constant value enough to be in close contact with the top.
따라서, 연료주입기에 의하여 연료주입구(1)내로 연료를 주입하면 연료가 화살표방향과 같이 가이드 홀(2,2')을 통하여 연료탱크내로 들어가게 되는 바 주입초기에는 낮은 액면을 가지므로 플로트(5)는 주입되는 연료압에 의하여 제1도와 같이 가이드 홀(2,2')하단쪽으로 향해 내려가 있다가 액면이 점차로 높아지면 플로트(5)가 액면을 따라 부상하게 되고 연료가 가득 채워질 시점인 주입말기에는 제2도와 같이 스프링(4)의 스프링력에 의하여 플로트(5)가 연료주입구(1)를 완전히 차단하게 되는 것이다.Therefore, when the fuel is injected into the fuel inlet 1 by the fuel injector, the fuel enters the fuel tank through the guide holes 2 and 2 'as shown in the arrow direction. Is lowered toward the lower end of the guide hole (2, 2 ') as shown in FIG. 1 when the liquid level gradually increases, and the float (5) floats along the liquid level. As shown in FIG. 2, the float 5 completely blocks the fuel inlet 1 by the spring force of the spring 4.
이와 같은 본 고안은 스프링력에 의하여 연료주입구가 주입말기에 완전히 차단되므로 연료의 역류를 방지하게 되고 종래와 달리 연료탱크와 연료목을 연결하는 호스(미도시)의 파단시에도 플로트가 스프링력에 의하여 연료주입구를 차단하고 있으므로 연료의 누출을 방지하게 되는 등의 효과가 있는 것이다.The present invention, as the fuel injection port is completely blocked at the end of the injection by the spring force to prevent the backflow of the fuel and unlike the conventional, the float is applied to the spring force even when the hose (not shown) connecting the fuel tank and the fuel tree is broken. By blocking the fuel inlet by this it is effective to prevent the leakage of fuel.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019940038830U KR0127084Y1 (en) | 1994-12-30 | 1994-12-30 | Device for preventing an injection fuel from reflux of an automobile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019940038830U KR0127084Y1 (en) | 1994-12-30 | 1994-12-30 | Device for preventing an injection fuel from reflux of an automobile |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960021175U KR960021175U (en) | 1996-07-18 |
KR0127084Y1 true KR0127084Y1 (en) | 1998-10-01 |
Family
ID=19405040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019940038830U KR0127084Y1 (en) | 1994-12-30 | 1994-12-30 | Device for preventing an injection fuel from reflux of an automobile |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0127084Y1 (en) |
-
1994
- 1994-12-30 KR KR2019940038830U patent/KR0127084Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR960021175U (en) | 1996-07-18 |
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