KR100264269B1 - Fuel leaking prevention apparatus of fuel filter when change - Google Patents

Fuel leaking prevention apparatus of fuel filter when change Download PDF

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Publication number
KR100264269B1
KR100264269B1 KR1019960065713A KR19960065713A KR100264269B1 KR 100264269 B1 KR100264269 B1 KR 100264269B1 KR 1019960065713 A KR1019960065713 A KR 1019960065713A KR 19960065713 A KR19960065713 A KR 19960065713A KR 100264269 B1 KR100264269 B1 KR 100264269B1
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KR
South Korea
Prior art keywords
fuel
filter
tube
fuel filter
battery
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KR1019960065713A
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Korean (ko)
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KR19980047237A (en
Inventor
배한
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정몽규
현대자동차주식회사
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Priority to KR1019960065713A priority Critical patent/KR100264269B1/en
Publication of KR19980047237A publication Critical patent/KR19980047237A/en
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Publication of KR100264269B1 publication Critical patent/KR100264269B1/en

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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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/42—Installation or removal of filters
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE: A fuel leakage preventive device in replacing a fuel filter is provided to prevent fuel from being leaked by separating a fuel filter with detecting separation from a fuel tube, and with closing the fuel tube. CONSTITUTION: A fuel leak preventing apparatus comprises a fuel tank(11); a fuel pump(12) circulating fuel from the fuel tank to a fuel tube(13); a fuel filter(14) filtering fuel circulated through the fuel tube; a fuel injector(15) injecting fuel to an engine combustion chamber; a detecting sensor(17) detecting installation state of the fuel filter; and an operating actuator(18) shutting off the fuel tube with receiving power from a battery(19) in replacing the fuel filter. An electromagnet is magnetized by receiving the power from the battery in separating the fuel filter, and a through hole is not fitted to a hole with moving a piston along a space from the right to the left by magnetizing the electromagnet. The fuel from the fuel tank and the fuel pump is prevented from being leaked in separating the fuel filter.

Description

연료필터 교체시 연료 누유방지장치Fuel leakage prevention device when replacing fuel filter

본 발명은 연료필터 교체시 연료 누유방지장치에 관한 것으로서, 더욱 상세하게는 연료필터 교체시 연료탱크와 연료펌프 및 연료튜브에 충진되어 있는 연료가 누유되는 것을 차단하도록 하는 연료필터 교체시 연료 누유방지장치에 관한 것이다.The present invention relates to a fuel leakage prevention device when replacing a fuel filter, and more particularly, to prevent fuel leakage when replacing a fuel filter to prevent leakage of fuel filled in a fuel tank, a fuel pump, and a fuel tube when the fuel filter is replaced. Relates to a device.

종래 엔진의 연소실에 연료를 공급하는 경로를 제3도에 의해서 살펴보면, 연료탱크(11)에 충진되어 있는 연료는 연료펌프(12)에 의해 연료튜브(13)로 순환된다. 이때 연료튜브(13)의 중간에 설치되어 있는 연료필터(14)는 연료로부터 이물질을 필터링하고, 이를 연료인젝터(15)에 공급한다. 이에 따라 엔진의 연소실(16)에는 엔진 전자제어장치의 제어로 작동하는 연료인젝터(15)에서 분사되는 연료와 미도시된 흡기관을 경유하여 유입되는 공기가 흡입되는 것이다. 그러므로 엔진은 이 혼합기의 연소로 인하여 추진력을 얻을 수 있다.Looking at the path for supplying fuel to the combustion chamber of the conventional engine with reference to Figure 3, the fuel filled in the fuel tank 11 is circulated to the fuel tube 13 by the fuel pump (12). At this time, the fuel filter 14 installed in the middle of the fuel tube 13 filters foreign substances from the fuel and supplies them to the fuel injector 15. Accordingly, the fuel injected from the fuel injector 15 operated under the control of the engine electronic controller and the air introduced through the intake pipe not shown are sucked into the combustion chamber 16 of the engine. The engine can therefore gain propulsion due to the combustion of this mixer.

연료를 필터링하는 연료필터를 일정기간마다 교체해 줌으로서, 이물질이 제거된 연료를 연료공급경로를 거쳐 엔진의 연소실에 공급함으로써 연료공급경로의 막힘 혹은 연소실 내부의 긁힘을 방지할 수 있으며, 나아가서는 배기가스의 유해성분을 줄일 수 있다. 그러나 연료필터를 교체하기 위해서 연료튜브로부터 연료필터를 분리하게 되면 연료탱크와 연료펌프를 거쳐 연료튜브에 충진되어 있는 연료가 누유된다. 이에따라 누유된 연료에 의해서 교체작업이 불편함은 물론이고 안전사고를 유발하는 요인이 된다.By replacing the fuel filter that filters the fuel at regular intervals, the fuel having foreign substances removed is supplied to the combustion chamber of the engine via the fuel supply path to prevent the fuel supply path from being blocked or scratched inside the combustion chamber. It can reduce harmful components of gas. However, when the fuel filter is separated from the fuel tube to replace the fuel filter, the fuel filled in the fuel tube leaks through the fuel tank and the fuel pump. As a result, the leaked fuel is not only inconvenient for replacement work but also causes a safety accident.

본 발명은 상기한 바와같은 종래의 불편함이나 사고요인을 줄이기 위해서 제안된 것으로, 연료필터가 연료튜브로부터 분리되는 것을 감지하고 연료필터의 교체를 위해 연료필터 분리시 연료필터가 설치된 전단의 연료튜브를 막음으로써, 연료필터의 분리로 인한 연료누유를 방지할 수 있도록 하는 연료필터 교체시 연료 누유방지장치를 제공하고자 하는데 그 목적이 있는 것이다.The present invention has been proposed to reduce the conventional inconveniences or accident factors as described above, the fuel tube of the front end of the fuel filter is installed when the fuel filter is separated when the fuel filter for detecting the fuel filter is separated from the fuel tube to replace the fuel filter The purpose of the present invention is to provide a fuel leakage preventing device when replacing a fuel filter that prevents fuel leakage due to separation of the fuel filter.

제1도는 일 실시예에 다른 본 발명의 구성 블록도.1 is a block diagram illustrating the structure of the present invention according to one embodiment.

제2도는 일 실시예에 따른 본 발명을 적용한 연료 공급경로의 계통도.2 is a schematic diagram of a fuel supply path to which the present invention is applied according to an embodiment.

제3도는 종래 연료 공급경로를 도시한 계통도이다.3 is a system diagram showing a conventional fuel supply path.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 연료탱크 12 : 연료펌프11: fuel tank 12: fuel pump

13 : 연료튜브 14 : 연료필터13 fuel tube 14 fuel filter

15 : 연료인젝터 16 : 연소실15 fuel injector 16 combustion chamber

17 : 감지센서 18 : 작동 액츄에이터17: detection sensor 18: operating actuator

19 : 배터리 20, 30 : 스프링19: battery 20, 30: spring

21 : 플레이트 22, 28 : 하우징21: plate 22, 28: housing

23, 31 : 공간부 24 : 고정접점23, 31: space part 24: fixed contact

25 : 결합구 26, 27 : 관통공25: coupler 26, 27: through hole

29 : 홀 32 : 피스톤29: hole 32: piston

33 : 전자석33: electromagnet

이하 본 발명의 일 실시예에 따른 구성을 첨부된 예시도면과 함께 보다 상세히 설명하면 다음과 같다.Hereinafter, the configuration according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

제1도는 일 실시예에 따른 본 발명의 구성 블록도이고, 제2도는 일 실시예에 따른 본 발명을 적용한 연료 공급경로의 계통도이다.1 is a block diagram of a configuration of the present invention according to an embodiment, and FIG. 2 is a schematic diagram of a fuel supply path to which the present invention is applied according to an embodiment.

본 발명은 제1도와 제2도에 도시한 바와같이 연료탱크(11)와, 이 연료탱크(11)의 연료를 연료튜브(13)로 순환시키는 연료펌프(12)와, 연료튜브(13)를 순환하는 연료를 필터링하는 연료필터(14)와, 연료를 엔진의 연소실(16)에 분사하는 연료인젝터(15)를 갖는 연료 공급장치에 있어서, 연료필터(14)의 장착상태를 감지하는 감지센서(17)와, 연료필터(14) 교체시 배터리(19) 전원을 공급받아 연료튜브(13)를 막는 작동 액츄에이터(18)를 더 포함하여 구성되어 있다.As shown in FIG. 1 and FIG. 2, the present invention includes a fuel tank 11, a fuel pump 12 for circulating fuel from the fuel tank 11 to a fuel tube 13, and a fuel tube 13; In the fuel supply device having a fuel filter 14 for filtering the fuel circulating through, and a fuel injector 15 for injecting the fuel into the combustion chamber 16 of the engine, the detection for detecting the mounting state of the fuel filter 14 It further comprises a sensor 17 and an actuating actuator 18 that receives the battery 19 power when the fuel filter 14 is replaced and closes the fuel tube 13.

여기서, 감지센서(17)는 연료튜브(13)에 고정된 하우징(22)과, 스프링(20)에 탄지되어 공간부(23)를 이동하면서 고정접점(24)을 접속하는 플레이트(21)와, 작동 액츄에이터(18)와 배터리(19)에 각각 접속되어 있으며 결합구(25)에 설치되어 플레이트(21)에 의해 접속되는 고정접점(24)으로 이루어져 있다. 또한 액츄에이터(18)는 연료튜브(13)를 연결하는 관통공(26)(27)이 형성된 하우징(28)과, 이 관통공(26)(27)을 이어주는 홀(29)이 형성되어 있으며 스프링(30)에 탄지되어 공간부(31)를 이동하는 피스톤(32)과, 이 피스톤(32)의 이동을 제어하는 전자석(33)으로 구성되어 있다.Here, the detection sensor 17 and the housing 22 fixed to the fuel tube 13, the plate 21 which is connected to the fixed contact point 24 while moving the space portion 23 is supported by the spring 20 and And a fixed contact 24 which is connected to the operating actuator 18 and the battery 19, respectively, and is installed in the coupler 25 and connected by the plate 21. In addition, the actuator 18 has a housing 28 in which through holes 26 and 27 are connected to the fuel tube 13, and a hole 29 connecting the through holes 26 and 27 is formed and a spring is provided. It consists of the piston 32 which is carried by the 30, and moves the space part 31, and the electromagnet 33 which controls the movement of this piston 32. As shown in FIG.

이와같이 구성된 본 발명의 작용을 설명한다.The operation of the present invention configured as described above will be described.

연결튜브(13)에 결합되어 있는 연료필터(14)를 결합구(25)로부터 분리하면, 플레이트(21)를 압압하던 연료필터(14)의 단부(34)가 제거되면서 스프링(20)의 탄발력에 의해서 플레이트(21)가 공간부(23)를 따라 하강하여 고정접점(24)을 접속시킨다. 즉, 연료필터(14)가 제거되면 플레이트(21)가 고정접점(24)을 접속시킴으로 배터리(19)의 출력전원이 고정접점(24)을 거쳐 작동 액츄에이터(18)의 전자석(33)에 공급된다. 물론 연료필터(14)를 연료튜브(13)에 연결하는 경우에는 연료필터(14)의 단부(34)가 플레이트(21)를 압압하면서 공간부(23)를 따라 상승함으로써, 플레이트(21)가 고정접점(24)으로부터 떨어져 배터리(19)의 출력전원이 작동 액츄에이터(18)의 전자석에 공급되지 않는다.When the fuel filter 14 coupled to the connecting tube 13 is separated from the coupling hole 25, the end 34 of the fuel filter 14, which has pressed the plate 21, is removed and the burnt of the spring 20 is removed. By the force of the plate, the plate 21 descends along the space 23 to connect the fixed contact 24. That is, when the fuel filter 14 is removed, the plate 21 connects the fixed contact 24, so that the output power of the battery 19 is supplied to the electromagnet 33 of the operating actuator 18 via the fixed contact 24. do. Of course, when connecting the fuel filter 14 to the fuel tube 13, the end portion 34 of the fuel filter 14 is raised along the space 23 while pressing the plate 21, the plate 21 is Apart from the stationary contact 24, the output power of the battery 19 is not supplied to the electromagnet of the actuating actuator 18.

연료필터(14) 분리시 배터리(19)의 출력전원을 인가받은 전자석(33)이 자화되면, 전자석(33)의 자화력에 의해 피스톤(32)이 공간부(31)를 따라 우측에서 좌측으로 이동함으로 관통공(26)(27)과 홀(29)이 불일치한다. 이에따라 연료필터(14) 분리시 연료탱크(11)와 연료펌프(12)에서 배출되는 연료가 밖으로 누유되지 않는다.When the electromagnet 33 receives the output power of the battery 19 when the fuel filter 14 is removed, the piston 32 is moved from right to left along the space 31 by the magnetization force of the electromagnet 33. By moving, the through holes 26 and 27 are inconsistent. Accordingly, the fuel discharged from the fuel tank 11 and the fuel pump 12 is not leaked out when the fuel filter 14 is separated.

하지만, 전자석(33)이 자화되지 않은 경우, 즉 연료필터(14)가 결합되어 있는 경우에는 스프링(30)의 탄발력에 의해 피스톤(32)이 공간부(31)를 따라 좌측에서 우측으로 이동하여 관통공(26)(27)과 홀(29)이 일치한다. 이에따라 연료탱크(11)와 연료펌프(12)에서 배출되는 연료가 연료필터(14)를 거쳐 엔진의 연소실(16)에 공급된다.However, when the electromagnet 33 is not magnetized, that is, when the fuel filter 14 is coupled, the piston 32 moves from the left to the right along the space 31 by the elastic force of the spring 30. Thus, the through holes 26 and 27 coincide with the holes 29. Accordingly, the fuel discharged from the fuel tank 11 and the fuel pump 12 is supplied to the combustion chamber 16 of the engine via the fuel filter 14.

이상에서와 같이 본 발명은 연료필터가 연료튜브로부터 분리되는 것을 감지하고, 연료필터의 교체를 위해 연료필터 분리시 연료필터가 설치된 전단의 연료튜브를 막음으로써, 연료필터의 분리시 연료의 누유를 방지할 수 있으며, 나아가서는 누유된 연료로 인해 발생할 수 있는 안전사고를 미연에 방지할 수 있는 것이다.As described above, the present invention detects that the fuel filter is separated from the fuel tube, and blocks the fuel tube at the front end where the fuel filter is installed when the fuel filter is separated to replace the fuel filter. In addition, it is possible to prevent safety accidents that may occur due to leaked fuel.

Claims (3)

연료탱크(11)와, 이 연료탱크(11)의 연료를 연료튜브(13)로 순환시키는 연료펌프(12)와, 연료튜브(13)를 순환하는 연료를 필터링하는 연료필터(14)와, 연료를 엔진의 연소실(16)에 분사하는 연료 인젝터(15)를 갖는 연료 공급장치에 있어서, 연료필터(14)의 장착상태를 감지하는 감지센서(17)와; 연료필터(14) 교체시 배터리(19) 전원을 공급받아 연료튜브(13)를 막는 작동 액츄에이터(18)를 더 포함하여 구성되어짐을 특징으로 하는 연료필터 교체시 연료 누유방지장치.A fuel tank 11, a fuel pump 12 for circulating the fuel in the fuel tank 11 to the fuel tube 13, a fuel filter 14 for filtering the fuel circulating in the fuel tube 13, A fuel supply apparatus having a fuel injector 15 for injecting fuel into a combustion chamber 16 of an engine, comprising: a sensing sensor 17 for sensing a mounting state of a fuel filter 14; Fuel leakage prevention device when replacing the fuel filter, characterized in that it further comprises an operating actuator (18) to block the fuel tube (13) by receiving the battery (19) power when the fuel filter (14) is replaced. 제1항에 있어서, 감지센서(17)는 연료튜브(13)에 고정된 하우징(22)과, 스프링(20)에 탄지되어 공간부(23)를 이동하면서 고정접점(24)을 접속하는 플레이트(21)와, 작동 액츄에이터(18)와 배터리(19)에 각각 접속되어 있으며 결합구(25)에 설치되어 플레이트(21)에 의해 접속되는 고정접점(24)으로 이루어짐을 특징으로 하는 연료필터 교체시 연료 누유방지장치.The plate of claim 1, wherein the detection sensor 17 is connected to the housing 22 fixed to the fuel tube 13 and the fixed contact 24 while being moved by the spring 20 to move the space 23. And a fixed contact point 24 which is connected to the operating actuator 18 and the battery 19, respectively, and is installed in the coupling hole 25 and connected by the plate 21. Fuel leakage prevention device. 제1항에 있어서, 액츄에이터(18)는 연료튜브(13)를 연결하는 관통공(26)(27)이 형성된 하우징(28)과, 이 관통공(26)(27)을 이어주는 홀(29)이 형성되어 있으며 스프링(30)에 탄지되어 공간부(31)를 이동하는 피스톤(32)과, 이 피스톤(32)의 이동을 제어하는 전자석(33)으로 구성되어짐을 특징으로 하는 연료필터 교체시 연료 누유방지장치.2. The actuator (18) according to claim 1, wherein the actuator (18) has a housing (28) formed with through holes (26) and (27) for connecting the fuel tubes (13), and a hole (29) connecting the through holes (26, 27). And a piston 32 which is formed and supported by the spring 30 to move the space 31, and an electromagnet 33 which controls the movement of the piston 32, when replacing the fuel filter. Fuel leakage prevention device.
KR1019960065713A 1996-12-14 1996-12-14 Fuel leaking prevention apparatus of fuel filter when change KR100264269B1 (en)

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