KR20010019911A - Fuel filter equiped auto draining device - Google Patents

Fuel filter equiped auto draining device Download PDF

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Publication number
KR20010019911A
KR20010019911A KR1019990036589A KR19990036589A KR20010019911A KR 20010019911 A KR20010019911 A KR 20010019911A KR 1019990036589 A KR1019990036589 A KR 1019990036589A KR 19990036589 A KR19990036589 A KR 19990036589A KR 20010019911 A KR20010019911 A KR 20010019911A
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South Korea
Prior art keywords
fuel
housing
float
water
guider
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KR1019990036589A
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Korean (ko)
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KR100349638B1 (en
Inventor
이길우
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이계안
현대자동차 주식회사
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Priority to KR1019990036589A priority Critical patent/KR100349638B1/en
Publication of KR20010019911A publication Critical patent/KR20010019911A/en
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Publication of KR100349638B1 publication Critical patent/KR100349638B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus 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
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/24Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
    • F02M37/26Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
    • F02M37/28Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means with means activated by the presence of water, e.g. alarms or means for automatic drainage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • B01D36/003Filters in combination with devices for the removal of liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • B01D36/003Filters in combination with devices for the removal of liquids
    • B01D36/005Liquid level sensing means, e.g. for water in gasoil-filters

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

PURPOSE: A fuel filter is provided to sense a stay of water in a fuel filter housing and to discharge outside to improve convenience of a driver and to prevent damage of an engine. CONSTITUTION: A fuel filter(1) comprises; a housing(2), a fuel inflow pipe(3) engaging with an upper portion of the housing to inflow a fuel to inside a housing, an element(4) filtrating water and dust from the fuel, a fuel exhaust pipe connecting with the upper portion of the housing to guide the fuel, a cylindrical guider(6) opened upward/downward and established vertically to a center unit of the element inside, and a drain hole(7) formed on the housing by connecting to an open portion of a lower portion of the guider. The water filtrated by the element stays inside the housing and pushes a float(8) having a lower specific weight than the water to the upper side of the guider by raising a height of a surface inside of the guider due to increasing of volume of the water. A magnet(13) approaches a water level of an upper limit switch(14) and attracts a movable contact point to attach to a stationary contact point by a magnetic field. Thereby, the upper limit switch turns on and an electronic control unit inputs an on signal outputting a control signal to control an open actuation of a solenoid valve(21). The drain hole is opened by the actuation of the solenoid valve to discharge out the water stayed in a lower portion of the float through the drain hole.

Description

자동배수장치를 구비한 연료필터{Fuel filter equiped auto draining device}Fuel filter with automatic drainage device {Fuel filter equiped auto draining device}

본 발명은 자동배수장치를 구비한 연료필터에 관한 것이다.The present invention relates to a fuel filter having an automatic drainage device.

연료장치는 차량의 모든 운전조건하에서 엔진에 필요한 혼합기를 가장 연소하기 쉬운 상태로 공급하는 장치로서 엔진의 성능, 특히 출력이나 경제성을 크게 좌우하는 장치이다.The fuel device is a device that supplies the mixer necessary for the engine under the most operating conditions of the vehicle in the most easily burned state, and greatly influences the performance of the engine, in particular, the power and economy.

연료장치의 일반적 계통도는 도 4에 도시하는 것과 같이 연료를 저장하는 연료탱크(30), 연료속에 있는 수분과 이물질들을 제거하는 연료필터(31), 연료를 압송하는 연료펌프(32), 이들을 연결하여 엔진에 연료가 공급되도록 안내하는 연료파이프(33)등으로 구성되어 있으며, 연료파이프(33)의 도중에는 연료계통을 따라 이송중에 발생한 가솔린증기가 대기중에 방출되는 것을 방지하기 위하여 차콜캐니스터등을 사용한 연료증발가스 배출억제장치(34)가 설치되어 있다.As shown in FIG. 4, a general system diagram of a fuel device includes a fuel tank 30 storing fuel, a fuel filter 31 removing water and foreign substances in the fuel, a fuel pump 32 for pumping fuel, and connecting them. And a fuel pipe 33 for guiding the fuel to be supplied to the engine. In the middle of the fuel pipe 33, a charcoal canister or the like is used to prevent gasoline vapor generated during transportation along the fuel system from being released into the atmosphere. A fuel evaporation gas emission suppression device 34 is provided.

연료에 포함되어 있는 수분과 먼지등을 여과하는 연료필터(31)는 통상 도 5에 도시하는 것과 같이 하우징(35)과, 하우징(35)내에 수용되어 여과면적을 가능한 크게 할 수 있도록 주름져 형성되는 엘리먼트(36)와, 엘리먼트(36)의 내측으로 연료를 유입시키도록 접속되는 연료유입파이프(37)와, 엘리먼트(36)를 통과하여 여과된 연료를 엔진측으로 급송안내하는 연료배출파이프(38)를 포함하고 있으며, 분리된 수분이 하우징(35)내에 차면 이를 외부로 배출시키기 위하여 하우징(35) 하부에 배수코크(39)가 나사로 체결 장착되어 있다.The fuel filter 31 for filtering water, dust, and the like contained in the fuel is generally corrugated to be accommodated in the housing 35 and the housing 35 so as to make the filtration area as large as possible, as shown in FIG. 5. The element 36, the fuel inlet pipe 37 connected to inject fuel into the element 36, and the fuel discharge pipe 38 for guiding the fuel filtered through the element 36 to the engine side. ), And the drainage cock 39 is fastened to the lower part of the housing 35 by a screw to discharge the separated water to the outside when the separated water is filled in the housing 35.

그러나 상기와 같은 종래 구조의 연료필터(31)에 의하면 시간의 경과에 따라 연료필터(31) 하우징(35)내에 응축된 물이 고이게 되면, 시동시 물이 엔진으로 공급되어 시동불량을 유발하고 엔진출력 저하와 배기가스 악화 및 엔진손상의 원인이 되므로 일정시간마다 운전자는 하우징(35) 하부에 장착된 배수코크(39)를 수시로 열어서 내부의 물을 외부로 배출시켜 주어야 하나, 수분이 많이 포함되어 있는 연료의 사용시에는 물이 고이는 시간도 짧아지므로 상당한 주의를 기울이지 아니하면 운전자가 적당한 배수시기를 놓칠 수 있어 엔진손상의 원인이 될 수 있다는 문제점이 지적되고 있다.However, according to the fuel filter 31 having the conventional structure as described above, if water condensed in the fuel filter 31 housing 35 accumulates with time, water is supplied to the engine at start-up, causing start-up failure, Since it may cause a decrease in output, deterioration of exhaust gas, and engine damage, the driver should open the drainage cock 39 mounted at the lower part of the housing 35 at regular intervals to discharge the internal water to the outside. It is pointed out that when the fuel is in use, the amount of time that the water accumulates is shortened, and thus, the driver may miss the proper drainage period without causing considerable attention, which may cause engine damage.

이에 본 발명은 상기한 문제점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은Therefore, the present invention has been proposed in view of the above problems, and its object is to

연료필터 하우징내에 물이 고이면 이를 자동으로 감지하여 외부로 배출하여 주므로써 운전자의 편의성을 도모하고 엔진의 손상을 미연에 방지하는 자동배수장치를 구비한 연료필터를 제공하는데 있다.The present invention provides a fuel filter having an automatic drainage device that automatically detects water in the fuel filter housing and discharges it to the outside to promote driver convenience and prevent engine damage.

상기한 목적을 달성하기 위하여 본 발명은The present invention to achieve the above object

연료펌프측에 접속되어 연료를 도입하는 연료유입파이프와 여과된 연료를 엔진측으로 급송안내하는 연료배출파이프를 구비하는 하우징과,A housing having a fuel inlet pipe connected to the fuel pump side for introducing fuel and a fuel discharge pipe for guiding the filtered fuel to the engine side;

그 하우징내로 유입되는 연료를 여과하는 엘리먼트를 포함하는 연료필터에 있어서,A fuel filter comprising an element for filtering fuel flowing into the housing, the fuel filter comprising:

상하단이 개방되어 상기 하우징내에 수직으로 입설되는 원통형 가이더와;A cylindrical guider having an upper and lower end opened vertically in the housing;

상기 가이더내에 상하로 이동가능하게 수용되며, 물보다는 비중량이 작고 연료보다는 비중량이 큰 플로우트와;A float housed in the guider so as to be movable up and down and having a specific gravity less than water and a specific gravity greater than fuel;

상기 가이더의 외주에 상하간에 간격을 두고 설치되어 자력에 의해 반응하여 온·오프 접속되는 상한 및 하한스위치와;Upper and lower limit switches provided on the outer periphery of the guider at intervals between the upper and lower sides and connected on / off by magnetic force;

상기 플로우트의 외주에 매설되어 상기 플로우트가 승하강하여 상기 상·하한스위치에 접근시 접근위치에 있는 상·하한스위치를 선택적으로 온 시키는 자장을 형성하는 자석과;A magnet embedded in an outer circumference of the float to form a magnetic field for selectively turning on the upper and lower limit switches at an approaching position when the float descends and approaches the upper and lower limit switches;

상기 플로우트 하부의 하우징에 형성되는 배수구와;A drain hole formed in a housing under the float;

상기 배수구를 개폐토록 작동하는 솔레노이드 밸브와;A solenoid valve actuated to open and close the drain;

상기 상한스위치의 온 접속신호를 받아서 상기 솔레노이드 밸브를 개방 작동하도록 제어하며, 상기 하한스위치의 온 접속신호를 받아서 상기 솔레노이드 밸브를 폐쇄토록 제어하는 전자제어장치를 포함하여 구성되어 있다.And an electronic controller for controlling the solenoid valve to be opened by receiving the ON connection signal of the upper limit switch, and controlling the solenoid valve to be closed by receiving the ON connection signal of the lower limit switch.

본 발명의 청구항 2항 기재에 의하면,According to claim 2 of the present invention,

상기 플로우트는 속이 빈 중공체인 것을 특징으로 한다.The float is characterized in that the hollow hollow body.

본 발명의 청구항 3항 기재에 의하면,According to claim 3 of the present invention,

상기 플로우트는 하부는 막히고 상부는 개방된 원통체와, 그 원통체 내면에 형성된 암나사와, 그 암나사와 나사체결되어 원통체의 내부공간의 크기를 조정하여 전체 비중량을 조정하는 비중량 조정나사로 구성된 것을 특징으로 한다.The float consists of a cylindrical body which is blocked at the lower part and an upper part thereof, a female screw formed on the inner surface of the cylindrical body, and a specific weight adjusting screw which is screwed with the female screw to adjust the overall specific weight by adjusting the size of the inner space of the cylindrical body. It is characterized by.

본 발명의 청구항 4항 기재에 의하면,According to claim 4 of the present invention,

상기 플로우트의 비중량은 900∼980㎏/㎥인 것을 특징으로 한다.The specific weight of the float is characterized in that 900 to 980 kg / ㎥.

그리고 본 발명의 청구항 5항 기재에 의하면,And according to claim 5 of the present invention,

상기 상·하한 스위치는 각각 자성체 재질인 고정접점과, 상기 자석이 접근시 그 자력에 의해 상기 고정접점에 붙는 가동접점을 구비하고 있는 것을 특징으로 한다.The upper and lower limit switches are each provided with a fixed contact made of a magnetic material and a movable contact attached to the fixed contact by the magnetic force when the magnet approaches.

또한 본 발명의 청구항 6항 기재에 의하면,Furthermore, according to claim 6 of the present invention,

상기 가동접점은 탄성체인 것을 특징으로 한다.The movable contact is characterized in that the elastic body.

도 1은 본 발명에 의한 자동배수장치를 구비한 연료필터를 나타내는 도면1 is a view showing a fuel filter having an automatic drainage device according to the present invention;

도 2는 본 발명에 의한 플로우트의 사시도 및 정단면도2 is a perspective and front sectional view of the float according to the present invention;

도 3 (가)와 (나)는 본 발명에 의한 상·하한 스위치의 구조 및 작동상태를Figure 3 (a) and (b) shows the structure and operating state of the upper and lower limit switches according to the present invention

나타내는 도면Drawing

도 4는 일반적인 연료계통도를 나타내는 도면4 is a view showing a general fuel system diagram

도 5는 종래의 연료필터를 나타내는 도면5 is a view showing a conventional fuel filter

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 연료필터 2 : 하우징1 fuel filter 2 housing

4 : 엘리먼트 6 : 가이더4: Element 6: Guider

7 : 배수구 8 : 플로우트7: drain hole 8: float

11 : 내부공간 12 : 비중량조절나사11: internal space 12: specific weight adjusting screw

13 : 자석 14 : 상한스위치13: magnet 14: upper limit switch

15 : 하한스위치 16,17 : 고정접점15: Lower limit switch 16,17: Fixed contact

18,19 : 가동접점 20 : 전자제어장치18,19: Movable contact 20: Electronic control device

21 : 솔레노이드 밸브 22 : 구멍21: solenoid valve 22: hole

이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 의한 자동배수장치를 구비한 연료필터를 나타낸 도면이며, 도 2는 본 발명에 의한 플로우트의 사시도 및 정단면도이며, 도 3은 상·하한 스위치의 접점 구성 및 작동상태를 나타내는 도면이다.1 is a view showing a fuel filter having an automatic drainage device according to the present invention, Figure 2 is a perspective view and a front sectional view of a float according to the present invention, Figure 3 shows the contact configuration and operating state of the upper and lower limit switches Drawing.

연료필터(1)는 하우징(2)과, 연료탱크측으로부터 하우징(2)내부로 연료를 도입하도록 하우징 상부에 접속되는 연료유입파이프(3), 하우징(2)내로 유입된 연료로부터 수분과 먼지등을 여과하는 엘리먼트(4), 엘리먼트(4)를 통과한 연료를 엔진측으로 안내하기 위하여 하우징(2) 상부에 접속된 연료배출파이프(5)등을 포함하고 있으며, 하우징(2) 내부, 보다 구체적으로는 엘리먼트(4) 내측의 중앙부에 상하가 개방된 원통형가이더(6)가 수직으로 입설되어 있고 그 가이더(6) 하부의 개방부에 접하여 배수구(7)가 하우징(2)에 형성되어 있다.The fuel filter 1 comprises water and dust from the housing 2, the fuel inlet pipe 3 connected to the upper portion of the housing to introduce fuel into the housing 2 from the fuel tank side, and the fuel introduced into the housing 2; An element 4 for filtering the back and the like, and a fuel discharge pipe 5 connected to the upper portion of the housing 2 for guiding the fuel passing through the element 4 to the engine side. Specifically, the cylindrical guider 6 opened up and down in the center part inside the element 4 is vertically entered, and the drain hole 7 is formed in the housing 2 in contact with the opening part of the lower part of the guider 6. .

상기 가이더(6) 내에는 상하로 승하강 가능하게 원통형의 플로우트(8)가 내장되어 있으며, 그 플로우트(8)는 속이 빈 중공체로서 내면에 암나사(9)가 있는 원통체(10)와, 그 원통체(10)에 나사 체결되어 내부공간(11)의 용적을 가변시키는 비중량조절나사(12) 및 원통체(10) 외주에 매설된 링형상의 자석(13)으로 구성되어 있다.In the guider 6, a cylindrical float 8 is built up and down to move up and down. The float 8 is a hollow hollow body with a cylindrical body 10 having a female screw 9 on its inner surface, It consists of a specific weight adjusting screw 12 which is screwed to the cylindrical body 10 to vary the volume of the internal space 11 and a ring-shaped magnet 13 embedded in the outer circumference of the cylindrical body 10.

상기 플로우트(8)의 비중량은 물보다는 작고 연료보다는 크게 설정되어지게 되는데, 연료의 비중량이 850∼880㎏/㎥, 물의 비중량은 1000㎏/㎥ 이므로 그 사이의 비중량을 갖도록 설정되며, 900∼980㎏/㎥ 사이로 조정하면 플로우트(8)는 물에는 뜨고 연료에서는 가라앉게 된다.The specific weight of the float 8 is set to be smaller than the water and larger than the fuel, the specific gravity of the fuel is 850 ~ 880kg / ㎥, the specific weight of the water is set to have a specific weight between them, When adjusted to between 900 and 980 kg / m 3, the float 8 floats in water and sinks in fuel.

그리고 상기 가이더(6)의 외주에는 상하로, 예를들면, 가이더(6)내에 물이 찰 경우 외부로 배출시켜야 하는 상한 위치상에 상한스위치(14)가 장착되고, 그 상한스위치(14)의 하부로 거리를 두고 하한스위치(15)가 장착되어있다.An upper limit switch 14 is mounted on the outer circumference of the guider 6 in an upper and lower position, for example, in the upper limit position to discharge to the outside when water is filled in the guider 6. The lower limit switch 15 is mounted at a lower distance.

상·하한 스위치(14)(15)는 각각 자성체로 형성되는 고정접점(16)(17)과 가동접점(18)(19)을 구비하고 있으며, 가동접점(18)(19)이 고정접점(16)(17)의 바깥측에 위치토록 설치된다.The upper and lower limit switches 14 and 15 are provided with fixed contacts 16 and 17 and movable contacts 18 and 19 which are each formed of a magnetic body, and the movable contacts 18 and 19 are fixed contacts ( 16) (17) is installed so as to be located outside.

그리고 가동접점(18)(19)은 자성체이면서 동시에 탄성체, 예를들면 고탄소강이나 스프링강 등으로 형성되어 상기 자석(13)의 흡인력에 의해 고정접점(16)(17)측에 휘어져 변형되므로써 밀착 접촉하게 되며, 자석의 흡인력이 제거되면 탄성력에 의해 원래의 상태로 돌아가 접점이 떨어지게 된다.The movable contacts 18 and 19 are magnetic and at the same time formed of an elastic body, for example, high carbon steel or spring steel, and are bent and deformed by the suction force of the magnet 13 to be fixed to the fixed contacts 16 and 17 side. When the suction force of the magnet is removed, the contact point is returned to the original state by the elastic force.

이 상·하한 스위치(14)(15)는 전자제어장치(20)에 접속되며, 전자제어장치(20)는 상·하한 스위치(14)(15)로부터 온·오프신호를 받아 상기 배수구(7)를 개폐하도록 설치된 솔레노이드 밸브(21)를 제어한다.The upper and lower limit switches 14 and 15 are connected to the electronic control unit 20, and the electronic control unit 20 receives an on / off signal from the upper and lower limit switches 14 and 15, and the drain port 7 ) To control the solenoid valve 21 installed to open and close.

여기서 가이더(6) 바깥에 존재하는 물의 배출을 위하여 가이더(6)의 하단에는 구멍(22)이 형성되어 있다.Here, a hole 22 is formed at the lower end of the guider 6 to discharge water existing outside the guider 6.

이와같은 본 발명의 작용에 대하여 구체적으로 설명하면 다음과 같다.Referring to the operation of the present invention in detail as follows.

엘리먼트(4)에 의해 여과된 수분은 하우징(2)내에 고이게 되는데 그 양이 점차 증가하면 가이더(6)내의 수면의 높이가 상승되므로써 물보다 비중량이 낮은 플로우트(8)를 가이더(6) 상부측으로 밀어올리게 된다. 이에따라 자석(13)이 상한스위치(14)의 수평면상에 접근하면 그 자장에 의해 가동접점(18)이 흡인되어 고정접점(16)에 붙게된다.Moisture filtered by the element 4 accumulates in the housing 2, and as the amount thereof gradually increases, the height of the surface of the water in the guider 6 rises, thereby bringing the float 8 having a lower specific gravity than the water to the upper side of the guider 6. Pushed up. Accordingly, when the magnet 13 approaches the horizontal plane of the upper limit switch 14, the movable contact 18 is attracted by the magnetic field and adheres to the fixed contact 16.

이에따라 상한스위치(14)가 온되고, 그 온신호는 전자제어장치(20)에 입력되며, 전자제어장치(20)는 제어신호를 출력하여 솔레노이드 밸브(21)를 개방 작동하도록 제어한다.Accordingly, the upper limit switch 14 is turned on, the on-signal is input to the electronic controller 20, and the electronic controller 20 outputs a control signal to control the solenoid valve 21 to be opened.

솔레노이드 밸브(21)가 작동하여 배수구(7)가 개방되면 플로우트(8) 하부에 차있던 물이 배수구(7)를 통해 외부로 배출되며, 이에 연동하여 플로우트(8)는 하강하게 된다.When the solenoid valve 21 is operated to open the drain hole 7, the water filled in the lower part of the float 8 is discharged to the outside through the drain hole 7, and the float 8 is lowered in conjunction with this.

플로우트(8)가 하강하면 자석에 의한 흡인력이 제거된 가동접점(18)은 탄성에 의해 고정접점(16)으로부터 떨어져 상한스위치(14)는 오프상태가 되며, 플로우트(8)가 계속 하강하여 자석(13)이 하한스위치(15)에 다다르면 자석의 흡인력에 의해 하한스위치의 가동접점(19)이 고정접점(17)에 흡착하여 붙게된다. 이와같이 하여 하한스위치(15)가 온되면 그 신호는 전자제어장치(20)에 전해져 전자제어장치(20)는 솔레노이드 밸브(21)에의 전원(21)이 차단시키게 되며, 이에따라 솔레노이드 밸브(21)가 원상복귀하여 배수구(7)를 폐쇄하게 되므로써 물만 외부로 배출하고 연료의 배출전에 배수구(7)를 자동으로 차단하게 되는 것이다.When the float 8 is lowered, the movable contact 18 from which the suction force by the magnet is removed is separated from the fixed contact 16 by elasticity, and the upper limit switch 14 is turned off, and the float 8 continues to descend so that the magnet When (13) reaches the lower limit switch 15, the movable contact 19 of the lower limit switch is attracted to the fixed contact 17 by the suction force of the magnet. In this way, when the lower limit switch 15 is turned on, the signal is transmitted to the electronic control apparatus 20 so that the electronic control apparatus 20 cuts off the power supply 21 to the solenoid valve 21. Accordingly, the solenoid valve 21 By returning to the original position, the drain port 7 is closed so that only the water is discharged to the outside and the drain port 7 is automatically shut off before the fuel is discharged.

이상과 같은 본 발명은 배수구상에 솔레노이드 밸브를 설치하고, 물보다는 비중량이 작고 연료보다는 큰 플로우트를 승하강하도록 내장하고, 그 플로우트에 마련한 자석에 의해 온·오프되는 상·하한 스위치를 가이더의 외주에 마련하고 있으며, 그 상·하한 스위치의 작동에 의해 배수구의 솔레노이드 밸브의 개폐를 제어하는 전자제어장치를 구비하고 있어 연료필터 하우징내에 물이 차면 자동으로 배수구를 열어 물을 외부로 배출시킬 수 있게 되므로써 운전자의 편의성이 증진되고, 엔진에의 수분유입에 따른 연소불량, 출력저하, 배기가스악화 및 엔진손상을 미연에 방지하게 되는 효과가 있다.The present invention as described above is provided with a solenoid valve on the drain port, built-in so as to move up and down the float with a specific gravity less than water and larger than the fuel, and the upper and lower limit switches that are turned on and off by the magnet provided in the float, the outer periphery of the guider And an electronic control device that controls the opening and closing of the solenoid valve of the drain port by the operation of the upper and lower limit switches, so that when the water is filled in the fuel filter housing, the drain is automatically opened to discharge the water to the outside. As a result, the driver's convenience is enhanced, and there is an effect of preventing combustion failure, output reduction, deterioration of exhaust gas, and engine damage caused by inflow of water into the engine.

Claims (7)

연료펌프측에 접속되어 연료를 도입하는 연료유입파이프와, 여과된 연료를 엔진측으로 급송안내하는 연료배출파이프를 구비하는 하우징과,A housing having a fuel inlet pipe connected to the fuel pump side for introducing fuel and a fuel discharge pipe for guiding the filtered fuel to the engine side; 그 하우징내로 유입되는 연료를 여과하는 엘리먼트를 포함하는 연료필터에 있어서,A fuel filter comprising an element for filtering fuel flowing into the housing, the fuel filter comprising: 상하단이 개방되어 상기 하우징내에 수직으로 입설되는 원통형 가이더와;A cylindrical guider having an upper and lower end opened vertically in the housing; 상기 가이더내에 상하로 이동가능하게 수용되며, 물보다는 비중량이 작고 연료보다는 비중량이 큰 플로우트와;A float housed in the guider so as to be movable up and down and having a specific gravity less than water and a specific gravity greater than fuel; 상기 가이더의 외주에 상하간에 간격을 두고 설치되어 자력에 의해 반응하여 온·오프 접속되는 상한 및 하한스위치와;Upper and lower limit switches provided on the outer periphery of the guider at intervals between the upper and lower sides and connected on / off by magnetic force; 상기 플로우트의 외주에 매설되어 상기 플로우트가 승하강하여 상기 상·하한스위치에 접근시 접근위치에 있는 상·하한스위치를 선택적으로 온 시키는 자장을 형성하는 자석과;A magnet embedded in an outer circumference of the float to form a magnetic field for selectively turning on the upper and lower limit switches at an approaching position when the float descends and approaches the upper and lower limit switches; 상기 플로우트 하부의 하우징에 형성되는 배수구와;A drain hole formed in a housing under the float; 상기 배수구를 개폐토록 작동하는 솔레노이드 밸브와;A solenoid valve actuated to open and close the drain; 상기 상한스위치의 온 접속신호를 받아서 상기 솔레노이드 밸브를 개방 작동하도록 제어하며, 상기 하한스위치의 온 접속신호를 받아서 상기 솔레노이드 밸브를 폐쇄토록 제어하는 전자제어장치를 포함하여 구성되어 있는 것을 특징으로 하는 자동배수장치를 구비한 연료필터.And an electronic controller configured to control the solenoid valve to be opened by receiving the ON connection signal of the upper limit switch and to control the solenoid valve to be closed by receiving the ON connection signal of the lower limit switch. Fuel filter with drainage. 제 1 항에 있어서,The method of claim 1, 상기 플로우트는 속이 빈 중공체인 것을 특징으로 하는 자동배수장치를 구비한 연료필터.The float is a fuel filter having an automatic drainage device, characterized in that the hollow hollow body. 제 2 항에 있어서,The method of claim 2, 상기 플로우트는 하부는 막히고 상부는 개방된 원통체와, 그 원통체 내면에 형성된 암나사와, 그 암나사와 나사체결되어 원통체의 내부공간의 크기를 조정하여 전체 비중량을 조정하는 비중량 조정나사로 구성된 것을 특징으로 하는 자동배수장치를 구비한 연료필터.The float consists of a cylindrical body which is blocked at the lower part and an upper part thereof, a female screw formed on the inner surface of the cylindrical body, and a specific weight adjusting screw which is screwed with the female screw to adjust the overall specific weight by adjusting the size of the inner space of the cylindrical body. A fuel filter having an automatic drainage device, characterized in that. 제 1 항 내지 제 3 항중 어느 한항에 있어서,The method according to any one of claims 1 to 3, 상기 플로우트의 비중량은 900∼980㎏/㎥인 것을 특징으로 하는 자동배수장치를 구비한 연료필터.And a specific weight of the float is 900 to 980 kg / m 3. 제 1 항에 있어서,The method of claim 1, 상기 상·하한 스위치는 각각 자성체 재질인 고정접점과, 상기 자석이 접근시 그 자력에 의해 상기 고정접점에 붙는 가동접점을 구비하고 있는 것을 특징으로 하는 자동배수장치를 구비한 연료필터.And the upper and lower limit switches each include a fixed contact made of a magnetic material, and a movable contact attached to the fixed contact by the magnetic force when the magnet approaches the magnetic filter. 제 5 항에 있어서,The method of claim 5, 상기 가동접점은 탄성체인 것을 특징으로 하는 자동배수장치를 구비한 연료필터.The movable contact is a fuel filter having an automatic drainage device, characterized in that the elastic body. 제 1 항에 있어서,The method of claim 1, 상기 가이더의 하단에는 구멍이 형성되어 있는 것을 특징으로 하는 자동배수장치를 구비한 연료필터.A fuel filter having an automatic drainage device, characterized in that a hole is formed in the lower end of the guider.
KR1019990036589A 1999-08-31 1999-08-31 Fuel filter equiped auto draining device KR100349638B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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KR20190026584A (en) 2017-09-04 2019-03-13 아라까와 가가꾸 고교 가부시끼가이샤 Ultraviolet ray-curable adhesive agent composition for protecting film, adhesive agent layer and protecting sheet
US10406464B2 (en) 2016-04-29 2019-09-10 Mann+Hummel Gmbh Drain control device for a filter system as well as filter system with a drain control device
US10406465B2 (en) 2016-04-29 2019-09-10 Mann+Hummel Gmbh Drain control device for a filter system as well as filter system with a drain control device
CN110242457A (en) * 2019-07-08 2019-09-17 瑞安市悍滤过滤器有限公司 A kind of novel filter structure of two-way heat power expansion

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KR101315034B1 (en) 2011-07-05 2013-10-04 (주)오선텍 Liquid separation and Auto-drain devices improving valve closing
GB2561530B (en) * 2017-01-20 2022-01-12 Bamford Excavators Ltd A fuel filter
CN109058548A (en) * 2018-09-04 2018-12-21 桐城市立行电子科技有限公司 A kind of energy-saving control valve for vehicle

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JPS54146978U (en) * 1978-04-04 1979-10-12
JPH0536066A (en) * 1991-07-31 1993-02-12 Nec Corp Production of plated disk medium
JPH0755131A (en) * 1993-06-07 1995-03-03 Hiroshima Denki:Kk Drain purge strainer
KR19980013539U (en) * 1996-08-30 1998-06-05 양재신 Fuel filter automatic water discharge device of diesel engine

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US10406464B2 (en) 2016-04-29 2019-09-10 Mann+Hummel Gmbh Drain control device for a filter system as well as filter system with a drain control device
US10406465B2 (en) 2016-04-29 2019-09-10 Mann+Hummel Gmbh Drain control device for a filter system as well as filter system with a drain control device
KR20190026584A (en) 2017-09-04 2019-03-13 아라까와 가가꾸 고교 가부시끼가이샤 Ultraviolet ray-curable adhesive agent composition for protecting film, adhesive agent layer and protecting sheet
CN110242457A (en) * 2019-07-08 2019-09-17 瑞安市悍滤过滤器有限公司 A kind of novel filter structure of two-way heat power expansion
CN110242457B (en) * 2019-07-08 2024-04-26 瑞安市悍滤过滤器有限公司 Oil-water separation filter

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