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KR100419725B1 - fuel cut off system of fuel supply truck - Google Patents

fuel cut off system of fuel supply truck Download PDF

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Publication number
KR100419725B1
KR100419725B1 KR10-2001-0015098A KR20010015098A KR100419725B1 KR 100419725 B1 KR100419725 B1 KR 100419725B1 KR 20010015098 A KR20010015098 A KR 20010015098A KR 100419725 B1 KR100419725 B1 KR 100419725B1
Authority
KR
South Korea
Prior art keywords
fuel
pneumatic
valve
supply line
fuel supply
Prior art date
Application number
KR10-2001-0015098A
Other languages
Korean (ko)
Other versions
KR20020074976A (en
Inventor
김성윤
Original Assignee
기아자동차주식회사
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Priority to KR10-2001-0015098A priority Critical patent/KR100419725B1/en
Publication of KR20020074976A publication Critical patent/KR20020074976A/en
Application granted granted Critical
Publication of KR100419725B1 publication Critical patent/KR100419725B1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06Details or accessories
    • B67D7/32Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
    • B67D7/3281Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06Details or accessories
    • B67D7/36Arrangements of flow- or pressure-control valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06Details or accessories
    • B67D7/76Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators
    • B67D7/766Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators of water separators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

본 발명은 주유장치에 있어서 과도한 수분히 함유된 불량연료가 주입되면 주유를 차단시키는 급유차량의 주유차단장치에 관한 것으로, 종래의 주유차단장치에는 컨트롤유니트로부터의 불량연료의 판단시 그 응답속도를 신속하게 하기 위해 연료공급라인에 이를 개폐하는 솔레노이드밸브가 설치되어 있지만, 이 솔레노이드밸브는 대형화된 연료공급라인에 적합하지 못하다는 문제점이 있었다.The present invention relates to a refueling shutoff device for a refueling vehicle that shuts off fueling when a poor fuel containing excessive moisture is injected into the refueling device. The conventional refueling shutoff device has a response speed when judging defective fuel from a control unit. The solenoid valve for opening and closing the fuel supply line is installed in order to speed up, but this solenoid valve has a problem that it is not suitable for the large fuel supply line.

이에 본 발명은 주유펌프와 연료수분분리장치와의 연료공급라인(1)에 공압밸브(10)를 설치하고 이 공압밸브(10)를 대형 상용차에 장착되는 에어브레이크의 에어탱크(12)와 연결시켜 에어탱크(12)의 고압공기를 연료공급라인(1)의 개폐 구동원으로 이용한 것이다.Therefore, the present invention is to install a pneumatic valve 10 in the fuel supply line (1) between the fuel pump and the fuel water separation device and connect the pneumatic valve 10 to the air tank 12 of the air brake mounted on a large commercial vehicle By using the high pressure air of the air tank 12 as the opening and closing drive source of the fuel supply line (1).

그리고, 에어탱크(12)와 공압밸브(10)와의 공압라인(14)에는 컨트롤유니트(5)에 의해 제어되는 솔레노이드밸브(16)를 설치하여 공압라인(14)의 개폐를 제어함으로써, 불량연료의 주입시 솔레노이드밸브(16)의 공압라인(14) 제어에 의해 공압밸브(10)가 제어되므로, 과도하고 복잡한 부품의 증가 없이도 대형화된 연료공급라인(1)에 주유차단장치의 장착이 간편화되는 것이다.In addition, a solenoid valve 16 controlled by the control unit 5 is installed in the pneumatic line 14 between the air tank 12 and the pneumatic valve 10 to control the opening and closing of the pneumatic line 14, thereby causing poor fuel. Since the pneumatic valve 10 is controlled by the control of the pneumatic line 14 of the solenoid valve 16 at the time of injection, it is easy to install the oil shutoff device in the large fuel supply line 1 without increasing the excessive and complicated parts. will be.

Description

급유차량의 주유차단장치{fuel cut off system of fuel supply truck}Fuel cut off system of fuel supply truck

본 발명은 급유차량의 주유차단장치에 관한 것으로, 더욱 상세하게는 주유차량에 설치된 에어탱크의 공압을 대형화된 연료공급라인의 개폐 구동원으로 이용하여 불량연료의 주입시 연료공급라인의 개폐가 제어되도록 한 급유차량의 주유차단장치에 관한 것이다.The present invention relates to a refueling shutoff device for a refueling vehicle, and more particularly, by using the pneumatic pressure of an air tank installed in the refueling vehicle as an opening and closing drive source of a large fuel supply line so that opening and closing of the fuel supply line is controlled when injecting defective fuel. A refueling shutoff device for a refueling vehicle.

일반적으로 급유차량을 통한 최종급유시 불순물의 침투에 의한 기관의 치명적 손상을 방지하기 위하여 주유라인에 필터와 연료수분분리장치를 구성요소로 하는 여과장치가 장착되어 있다.In general, in order to prevent the fatal damage of the engine due to the penetration of impurities during the final refueling through the refueling vehicle, the lubrication line is equipped with a filter comprising a filter and a fuel water separation device.

특히, 유류의 최종 저장장소가 지하인 경우가 많고, 이 저장장소의 방수구조가 충분치 않은 경우 수분이 침투될 우려가 있기 때문에 상기 연료수분분리장치는 급유차 여과장치의 필수구성요소이다.In particular, the fuel water separator is an essential component of the oil tank filtration device because the final storage place of oil is often underground, and water may penetrate when the waterproof structure of the storage place is insufficient.

연료수분분리장치는 연료가 공급되는 기관의 연료탱크 연료공급라인에 연료의 중간 경유공간을 마련하고 이곳에서 물과 연료의 비중차에 의해 서로를 분리하기 위한 것으로, 분리공간을 제공하는 하우징에 연료의 흡입구와 토출구가 마련되고, 하우징 하부에는 분리된 수분의 배출을 위한 배출구가 형성되어 있다.The fuel water separator is to provide an intermediate gas oil space in the fuel tank fuel supply line of the engine where the fuel is supplied, and to separate each other by the specific gravity difference between water and fuel, and to provide fuel in a housing that provides a separation space. The suction port and the discharge port of the is provided, the discharge port for discharging the separated water is formed in the lower portion of the housing.

그러나, 이러한 여과장치는 여과용량이 설정된 것이어서, 여과용량을 초과하는 급유 즉, 연료자체가 불량인 경우 분리된 물이 연료필터를 거쳐 기관으로 유입될 우려가 있다.However, since such a filtration device is a filtration capacity is set, if the lubrication exceeds the filtration capacity, that is, the fuel itself is bad, there is a fear that the separated water flows into the engine through the fuel filter.

이를 해소하기 위해 과도하게 함유된 불량연료의 주입이 발생될때 이를 감지하여 기관으로의 주유를 차단하는 장치(출원번호:10-2000-075277 명칭: 과도한 수분함량에 따른 주유차단장치)가 안출되어 있다.To solve this problem, a device (detection application number: 10-2000-075277, namely: oil shut-off device due to excessive moisture content) has been devised that detects when an excessive amount of bad fuel is injected and cuts off the fuel. .

이것은 예시도면 도 1 에서와 같이 수분분리장치(3)의 수위 상승속도가 증가되면 이를 불량연료 유입으로 판단한 것으로, 수분분리장치(3)에 수위감지센서(4)가 설치되어 지며, 수위감지센서(4)는 컨트롤유니트(5)와 연결되어지고, 컨트롤유니트(5)에는 수위상승 속도에 따른 한계치가 설정되어 있어 수분분리장치(3)에 의해 연료에 포함된 수분을 분리함에 있어 분리된 수분의 수위 상승 속도가 한계치를 넘는 경우, 연료의 공급 차단과 동시에 경고장치(7)를 구동시키도록 한 것이다.This is determined as the inflow of the fuel when the water level rise rate of the water separator 3 increases as shown in Figure 1, the water level sensor 4 is installed in the water separator 3, the water level sensor (4) is connected to the control unit (5), the control unit (5) is set to the limit value according to the water level rise rate, the water separated in separating the water contained in the fuel by the water separator (3) If the rising rate of water exceeds the limit, the warning device 7 is driven at the same time as the fuel supply is cut off.

여기서, 연료차단은 연료펌프(2)로의 동력을 차단시켜 수행하며, 바람직하기로는 연료공급라인(1)에 별도의 솔레노이드밸브(6)를 설치하여 불량연료의 주입시 솔레노이드밸브(6)가 연료공급라인(6)을 차단시킴으로써, 컨트롤유니트(5)의 판단에 대한 응답속도를 빠르게 한 것이다.Here, the fuel cut is performed by cutting off the power to the fuel pump (2). Preferably, a separate solenoid valve (6) is installed in the fuel supply line (1) so that the solenoid valve (6) is fueled when the bad fuel is injected. By shutting off the supply line 6, the response speed to the determination of the control unit 5 is increased.

그러나, 엑튜에이터로서 솔레노이드에 의한 구동방식일 경우 연료공급라인(6)의 연료송압량이 제한되어 솔레노이드밸브(6)만으로는 주유장치의 대형화가 불편하다는 문제점이 있다.However, when the actuator is driven by a solenoid, the fuel supply amount of the fuel supply line 6 is limited, so that the solenoid valve 6 alone is not convenient to enlarge the oil supply device.

즉, 주지된 바와 같이 솔레노이드밸브(6)는 소용량의 유로개폐에 적당한 것으로서, 항공기 급유차등과 같은 대용량 송출의 급유차량에 적절치 못하다.That is, as is well known, the solenoid valve 6 is suitable for opening and closing a small flow path, and is not suitable for a large-capacity oil supply vehicle such as an aircraft refueling vehicle.

이러한 솔레노이드밸브를 적용할 경우에는 연료공급라인을 다수개로 분지시키고 여기에 각각 솔레노이드밸브를 설치하여야 하므로, 그 연료공급라인의 분지에따른 부품과 배열이 복잡해 지기 때문이며, 대용량의 연료공급라인에 대용량의 솔레노이드밸브를 구비시키는 것도 대형 솔레노이드밸브의 잦은 고장과 대용량의 전원공급의 측면에서 적절하지 못하다.In case of applying such solenoid valve, it is necessary to install a plurality of fuel supply lines and install solenoid valves respectively, which complicates parts and arrangement according to the branch of the fuel supply line. The provision of solenoid valves is also inadequate in terms of frequent failure of large solenoid valves and large capacity power supplies.

이에 본 발명은 상기 문제점을 개선하기 위하여 안출된 것으로, 주유차량에 설치된 에어탱크의 공압을 대형화된 연료공급라인의 개폐 구동원으로 이용하여 불량연료의 주입시 연료공급라인의 개폐가 제어되도록 한 급유차량의 주유차단장치를 제공함에 그 목적이 있는 것이다.Accordingly, the present invention has been made to solve the above problems, the fuel supply vehicle to control the opening and closing of the fuel supply line when the injection of defective fuel by using the pneumatic pressure of the air tank installed in the refueling vehicle as the opening and closing drive source of the large fuel supply line Its purpose is to provide an oil shutoff device.

이를 위한 본 발명은 주유펌프와 연료수분분리장치와의 연료공급라인에 공압밸브를 설치하고 이 공압밸브를 대형 상용차에 장착되는 에어브레이크의 에어탱크와 연결시켜 에어탱크의 고압공기를 연료공급라인의 개폐 구동원으로 이용한 것이다.The present invention for this purpose is to install a pneumatic valve in the fuel supply line between the fuel pump and the fuel water separation device and to connect the high pressure air of the air tank of the fuel supply line by connecting the pneumatic valve to the air tank of the air brake mounted on a large commercial vehicle It is used as an open / close drive source.

그리고, 에어탱크와 공압밸브와의 공압라인에는 컨트롤유니트에 의해 제어되는 솔레노이드밸브를 설치하여 공압라인을 제어함으로써, 불량연료의 주입시 솔레노이드밸브의 공압라인 제어에 의해 공압밸브가 제어되므로, 과도하고 복잡한 부품의 증가 없이도 대형화된 연료공급라인에 주유차단장치의 장착이 간편화되는 것이다.In addition, by installing a solenoid valve controlled by a control unit in the pneumatic line between the air tank and the pneumatic valve, the pneumatic valve is controlled by controlling the pneumatic line of the solenoid valve when the fuel is injected. It is easy to install the oil shutoff device on the large fuel supply line without increasing the complicated parts.

도 1 은 종래 주유차단장치를 나타낸 개념도,1 is a conceptual view showing a conventional oil shutoff device;

도 2 는 본 발명에 따른 주유차단장치를 나타낸 개념도,2 is a conceptual view showing a gas shutoff device according to the present invention;

도 3 은 본 발명에 따른 주유차단장치의 공압밸브 작동상태를 나타낸 단면설명도,3 is an explanatory cross-sectional view showing a pneumatic valve operation state of the oil shutoff device according to the present invention;

도 4 는 본 발명에 따른 주유차단장치의 솔레노이드밸브 작동상태를 나타낸 단면설명도이다.4 is an explanatory cross-sectional view showing a solenoid valve operating state of a gas shutoff device according to the present invention.

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

1 - 연료공급라인, 2 - 주유펌프,1-fuel supply line, 2-fuel pump,

3 - 연료수분분리장치, 4 - 수위감지센서,3-fuel moisture separator, 4-level sensor,

5 - 컨트롤유니트, 6 - 솔레노이드밸브,5-control unit, 6-solenoid valve,

7 - 경고장치, 10 - 공압밸브,7-warning device, 10-pneumatic valve,

12 - 에어탱크, 14 - 공압라인,12-air tank, 14-pneumatic line,

16 - 솔레노이드밸브, 18 - 밸브,16-solenoid valve, 18-valve,

20 - 밸브하우징, 22 - 공압실린더,20-valve housing, 22-pneumatic cylinder,

24 - 피스톤, 26 - 리턴스프링,24-piston, 26-return spring,

28 - 가동철심, 30 - 배기포트,28-movable core, 30-exhaust port,

32 - 리턴스프링,32-return spring,

이하 첨부된 예시도면과 함께 본 발명을 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

예시도면 도 2 는 본 발명에 따른 주유차단장치의 개념도로서, 본 발명은 주유차량에 설치된 주유펌프(2)와 연료수분분리장치(3)와의 연료공급라인(6)에 공압밸브(10)가 설치되고, 이 공압밸브(10)는 주유차량에 설치된 에어탱크(12)와 공압라인(14)으로 연결된다.2 is a conceptual view of a fuel oil shutoff device according to the present invention. The present invention provides a pneumatic valve 10 in a fuel supply line 6 between a fuel pump 2 and a fuel moisture separator 3 installed in a fuel vehicle. The pneumatic valve 10 is connected to the air tank 12 and the pneumatic line 14 installed in the oil supply vehicle.

그리고, 상기 공압라인(14)에는 상기 공압밸브(10)의 개폐를 단속하는 솔레노이드밸브(16)가 설치됨과 동시에, 이 솔레노이드밸브(16)는 수위감지센서(4)와 연결되어 수위감지센서(4)에서 출력되는 신호를 이용하여 연료수분분리장치(3)의 급격한 수위상승을 불량연료의 주입을 판단하여 작동신호를 송출하는 컨트롤유니트(5)의 출력단에 연결된 주유차량의 주유차단장치이다.In addition, a solenoid valve 16 for intermittent opening and closing of the pneumatic valve 10 is installed in the pneumatic line 14, and the solenoid valve 16 is connected to a water level sensor 4 so as to provide a water level sensor ( It is a refueling shutoff device for a refueling vehicle connected to the output terminal of the control unit (5) which transmits an operation signal by judging injection of defective fuel by rapid water level rise of the fuel moisture separator (3) using the signal output from 4).

상기 공압밸브(10)는 그 작동상태를 나타낸 예시도면 도 3 에서와 같이 밸브(18)가 삽입설치되는 밸브하우징(20)의 측부에 이 밸브(18)를 작동시키는 공압실린더(22)가 설치되어 이루어지며, 이 공압실린더(22)의 수압부인 피스톤(24)을 작동시키는 공압라인(14)이 상기 에어탱크(12)와 연결되어 진다.The pneumatic valve 10 is installed in the pneumatic cylinder 22 for operating the valve 18 on the side of the valve housing 20 in which the valve 18 is inserted, as shown in FIG. It is made, and the pneumatic line 14 for operating the piston 24 which is the hydraulic pressure portion of the pneumatic cylinder 22 is connected to the air tank 12.

여기서, 에어탱크(12)는 브레이크장치의 구성부품으로 기존의 주유차량에 장착된 것이다.Here, the air tank 12 is a component of the brake device is mounted on the existing fuel oil vehicle.

브레이크장치는 브레이크슈를 압축공기의 압력을 이용하여 드럼에 압착시켜 제동을 수행하는 에어브레이크(압축공기식 브레이크 배력장치를 포함한다)를 말하며, 이것은 브레이크 페달의 조작력을 작게 하여 대형트럭이나 버스 등의 대형 상용차량에 사용되고 있다.A brake device is an air brake (including a compressed air brake booster) that compresses a brake shoe to a drum by using compressed air pressure. Used in large commercial vehicles.

이러한 에어브레이크는 압축공기의 충전과 저장을 위해 에어컴프레셔와 에어탱크(12)가 필수요소이며, 본 발명은 이러한 에어탱크(12)에 충전된 압축공기를 공압밸브(10)의 구동원으로 응용한 것이다.The air brake is an essential element of the air compressor and the air tank 12 for the filling and storage of the compressed air, the present invention is applied to the compressed air filled in the air tank 12 as a drive source of the pneumatic valve (10) will be.

한편, 이러한 압축공기에 의한 공압밸브(10)의 개폐를 제어하기 위해 공압라인(14)에 솔레노이드밸브(16)가 설치되어진다.On the other hand, the solenoid valve 16 is provided in the pneumatic line 14 to control the opening and closing of the pneumatic valve 10 by the compressed air.

상기 솔레노이드밸브(16)는 그 작동상태를 나타낸 예시도면 도 4 에서와 같이 대기로 잔압을 배출하기 위한 배기포트가 형성된 것으로, 가동철심(28)의 양단이 밸브를 이루어 그 일단은 공압라인(14)을 개폐하게 설정되어 있으며, 타단은 공압밸브(10)와 솔레노이드밸브(16)와의 공압라인과 배기포트를 개폐하게 설정되어 있다.The solenoid valve 16 has an exhaust port for discharging residual pressure to the atmosphere as shown in FIG. 4 showing an operating state of the solenoid valve 16, and both ends of the movable core 28 form a valve, and one end thereof is a pneumatic line 14 The other end is set to open and close the pneumatic line and the exhaust port of the pneumatic valve 10 and the solenoid valve 16.

따라서, 솔레노이드밸브(16)의 폐쇄시에는 솔레노이드밸브(16)와 공압실린더(22)와의 공압라인(14)을 대기로 우회시켜 공압라인(14)의 잔압을 제거하여 공압실린더(22)의 피스톤(24) 복귀를 돕는다.Accordingly, when the solenoid valve 16 is closed, the piston of the pneumatic cylinder 22 is removed by bypassing the pneumatic line 14 between the solenoid valve 16 and the pneumatic cylinder 22 to the atmosphere to remove residual pressure in the pneumatic line 14. (24) Help return.

상기 솔레노이드밸브(16)는 연료수분분리장치(3)에 의해 분리된 수분의 양이 급격히 증가하여 수위가 상승되는 경우 수위감지센서(4)에서 수위 상승을 감지하여 해당하는 신호를 출력하게 되고, 출력된 신호를 입력받아 불량 연료로서 판단하는 컨트롤유니트(5)의 전원공급라인 단속에 의해 개폐가 제어되며, 기존의 작동신호 즉, 주유펌프(2)의 동력 차단신호와 경고장치(7)의 작동신호와 동시에 작동된다.The solenoid valve 16 detects the level rise in the water level sensor 4 and outputs a corresponding signal when the amount of water separated by the fuel water separator 3 increases rapidly. Opening and closing is controlled by the interruption of the power supply line of the control unit 5 which receives the output signal and judges it as a poor fuel, and the existing operation signal, that is, the power cutoff signal of the fuel pump 2 and the warning device 7 It is operated simultaneously with the operation signal.

따라서, 이러한 본 발명의 작동을 종합하여 설명하면 다음과 같다.Therefore, the overall operation of the present invention will be described as follows.

통상적인 주유상태에서는 솔레노이드밸브(16)가 공압라인(14)을 폐쇄하고 있으므로, 공압밸브(10)는 연료공급라인(1)을 개방시키고 있는 상태에 놓여있다.Since the solenoid valve 16 is closing the pneumatic line 14 in the normal oiling state, the pneumatic valve 10 is in a state of opening the fuel supply line (1).

그런데, 수분이 과도하게 함유된 불량연료가 연료수분분리장치(3)에 주입되면 연료수분분리장치(3)에서는 연료에서 분리된 수분에 의해 급격한 수위상승이 발생하고, 수위감지센서(4)는 수위에 해당하는 신호를 출력하여 컨트롤유니트(5)로 입력되도록 한다. 수위감지센서(4)에서 출력되는 신호를 이용하여 급격한 수위상승을 감지한 컨트롤유니트(5)는 주유차단을 위한 작동신호를 송출하게 되고, 송출된 작동 신호는 솔레노이드 밸브(16)로 입력된다.However, when bad fuel containing too much water is injected into the fuel moisture separator 3, the fuel moisture separator 3 suddenly rises due to the water separated from the fuel, and the water level sensor 4 The signal corresponding to the water level is output to be input to the control unit (5). The control unit 5 which detects a sudden rise in water level using a signal output from the water level detection sensor 4 sends an operation signal for refueling shutoff, and the sent operation signal is input to the solenoid valve 16.

컨트롤유니트(5)에서 송출되는 작동 신호에 의해 예시도면 도 4a 와 같이 솔레노이드밸브(16)의 가동철심(28)이 이동하여 공압라인(14)이 개방됨과 동시에 배기포트(30)는 폐쇄된다.As shown in FIG. 4A, the movable iron core 28 of the solenoid valve 16 is moved by the operation signal transmitted from the control unit 5, the pneumatic line 14 is opened, and the exhaust port 30 is closed.

공압라인(14)이 개방되면 에어탱크(12)의 압축공기가 이를 따라 공압밸브(10)의 공압실린더(22)로 송압되며 예시도면 도 3a 와 같이 피스톤(24)과 이와 일체로 연결되어진 밸브(18)를 작동시키게 되어 연료공급라인(1)을 폐쇄시키게 되는 것이다.When the pneumatic line 14 is opened, the compressed air of the air tank 12 is fed to the pneumatic cylinder 22 of the pneumatic valve 10 along with the valve 24 and integrally connected to the piston 24 as shown in FIG. (18) to operate to close the fuel supply line (1).

한편, 불량연료를 제거하고 주유장치를 다시 가동시키면 컨트롤유니트(5)의 해제신호에 의해 솔레노이드밸브(16)로의 작동 신호의 송출이 차단 즉, 전원공급이 차단된다.On the other hand, when the defective fuel is removed and the lubrication device is operated again, the transmission of the operation signal to the solenoid valve 16 is cut off, that is, the power supply is cut off by the release signal of the control unit 5.

이에 의해 예시도면 도 4b 와 같이 리턴스프링(32)에 의해 가동철심(28)이 복귀되어 공압라인(14)이 폐쇄되면서 배기포트(30)가 개방되고, 솔레노이드밸브(16)와 공압밸브(10)를 연결하는 공압라인(14)의 잔여공기가 배기포트(30)를 따라 대기로 방출된다.Accordingly, as shown in FIG. 4B, the movable iron core 28 is returned by the return spring 32 to close the pneumatic line 14, thereby opening the exhaust port 30, and opening the solenoid valve 16 and the pneumatic valve 10. ), The remaining air of the pneumatic line 14 is discharged to the atmosphere along the exhaust port (30).

공압라인(14)의 잔여공기가 대기로 방출되면 공압밸브(10)에 작동되는 압력이 해제되며, 이에 의해 예시도면 도 3b 와 같이 리턴스프링(26)과 더불어 연료펌프(2)에서의 연료송압에 의해 밸브(18)가 복귀되는 것이다.When the remaining air of the pneumatic line 14 is released to the atmosphere, the pressure acting on the pneumatic valve 10 is released, whereby the fuel feed pressure in the fuel pump 2 together with the return spring 26 as shown in Figure 3b. By this, the valve 18 is returned.

상술된 바와 같이 본 발명에 따르면, 주유차량에 장착된 에어탱크의 공압을 이용하여 공압밸브가 연료공급라인을 개폐시킴으로써, 대형화된 연료공급라인에 주유차단장치의 장착이 간편화되는 잇점이 있다.As described above, according to the present invention, the pneumatic valve opens and closes the fuel supply line using the pneumatic pressure of the air tank mounted on the oil supply vehicle, thereby simplifying the installation of the oil supply shutoff device on the enlarged fuel supply line.

Claims (1)

분리된 수분의 수위를 감지하고 이에 해당하는 신호를 출력하는 수위감지센서(4)에서 출력되는 신호를 이용하여 연료수분분리장치(3)의 급격한 수위상승을 감지하여 불량연료의 주입을 판단하고 이에 따른 작동신호를 송출하는 컨트롤유니트(5)를 포함하여 구성되는 주유차량의 주유차단장치에 있어서, 주유차량에 설치된 주유펌프(2)와 연료수분분리장치(3)와의 연료공급라인(1)에 공압밸브(10)가 설치되고, 상기 공압밸브(10)는 주유차량에 설치된 에어탱크(12)와 공압라인(14)으로 연결됨과 더불어, 상기 공압라인(14)에는 상기 공압밸브(10)의 개폐를 단속하는 솔레노이드밸브(16)가 설치되어 구성되는 것을 특징으로 하는 주유차량의 주유차단장치.Detects sudden water level rise of the fuel moisture separator 3 by using a signal output from the water level sensor 4 which detects the water level of the separated water and outputs a signal corresponding thereto to determine the injection of defective fuel. In the oil supply shutoff device of the refueling vehicle comprising a control unit (5) for transmitting the operation signal according to the fuel supply line, the fuel supply line (1) between the fuel pump (2) and the fuel water separation device (3) installed on the refueling vehicle Pneumatic valve 10 is installed, the pneumatic valve 10 is connected to the air tank 12 and the pneumatic line 14 installed in the refueling vehicle, and the pneumatic line 14 of the pneumatic valve 10 A fueling shutoff device for a gasoline vehicle, characterized in that the solenoid valve 16 for regulating the opening and closing is installed.
KR10-2001-0015098A 2001-03-23 2001-03-23 fuel cut off system of fuel supply truck KR100419725B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150133963A (en) * 2014-05-21 2015-12-01 주식회사 엠텍이엔지 Pneumatic automatic level control method sealpot

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS582710A (en) * 1981-06-30 1983-01-08 Tsuchiya Mfg Co Ltd Fuel filter having water level detecting device
JPS59164918A (en) * 1983-03-10 1984-09-18 Atsugi Motor Parts Co Ltd Moisture detecting alarm of fuel filter for vehicle
KR19990014415A (en) * 1998-11-06 1999-02-25 강임준 Oil supply device of lubricator and its control method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582710A (en) * 1981-06-30 1983-01-08 Tsuchiya Mfg Co Ltd Fuel filter having water level detecting device
JPS59164918A (en) * 1983-03-10 1984-09-18 Atsugi Motor Parts Co Ltd Moisture detecting alarm of fuel filter for vehicle
KR19990014415A (en) * 1998-11-06 1999-02-25 강임준 Oil supply device of lubricator and its control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150133963A (en) * 2014-05-21 2015-12-01 주식회사 엠텍이엔지 Pneumatic automatic level control method sealpot
KR101599611B1 (en) 2014-05-21 2016-03-04 주식회사 엠텍이엔지 Pneumatic automatic level control method sealpot

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