KR101585419B1 - Structure of filter mounted in reserve-cup for fuel pump - Google Patents

Structure of filter mounted in reserve-cup for fuel pump Download PDF

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Publication number
KR101585419B1
KR101585419B1 KR1020100083262A KR20100083262A KR101585419B1 KR 101585419 B1 KR101585419 B1 KR 101585419B1 KR 1020100083262 A KR1020100083262 A KR 1020100083262A KR 20100083262 A KR20100083262 A KR 20100083262A KR 101585419 B1 KR101585419 B1 KR 101585419B1
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South Korea
Prior art keywords
filter
fuel
fuel pump
cup
reservoir
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KR1020100083262A
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Korean (ko)
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KR20120019804A (en
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백일현
배연노
박상준
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현대자동차주식회사
기아자동차주식회사
현담산업 주식회사
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Priority to KR1020100083262A priority Critical patent/KR101585419B1/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
    • F02M37/50—Filters arranged in or on fuel tanks
    • 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
    • F02M37/34—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 by the filter structure, e.g. honeycomb, mesh or fibrous
    • 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
    • F02M37/44—Filters structurally associated with pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/005—Filters specially adapted for use in internal-combustion engine lubrication or fuel systems
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Filtration Of Liquid (AREA)

Abstract

본 발명은, 연료펌프용 리저브컵에 내장된 필터의 구조에 있어서, 상기 리저브컵은 연료펌프 및 필터를 내장하고 연료탱크 내부에 설치되되 상기 연료탱크에 저장된 연료가 내부로 유입되도록 유입구가 형성되며, 상기 연료펌프는 내부의 임펠러로 연결된 흡입구가 하측을 향하도록 배치되고 상기 흡입구의 아래로 필터가 고정결합되되, 상기 필터는 메쉬(mesh)의 크기가 상이한 제1필터와 제2필터가 결합되어 구성된 것을 특징으로 한다.
상기와 같은 구성의 본 발명은, 리저브컵 내부로 연료와 함께 이물이 유입되더라도 이물의 함유 정도가 높은 하단측에 부직포 타입의 제1필터을 적용함으로써 일반적인 점도의 이물질은 물론, 고점도의 이물질 또한 더 효율적으로 여과할 수 있는 효과가 있다.In the structure of a filter built in a reservoir cup for a fuel pump, the reservoir cup is provided with a fuel pump and a filter, and is provided inside the fuel tank, and an inlet is formed so that the fuel stored in the fuel tank flows into the reservoir Wherein the fuel pump is disposed such that a suction port connected to an inner impeller is directed downward and a filter is fixedly coupled to the suction port, wherein the filter has a first filter and a second filter that are different in mesh size from each other .
According to the present invention having the above-described structure, even if foreign matter flows into the reservoir cup together with the fuel, the first filter of the nonwoven fabric type is applied to the lower end side where the foreign matter content is high, It has an effect of being able to be filtered.

Description

연료펌프용 리저브컵에 내장된 필터의 구조{Structure of filter mounted in reserve-cup for fuel pump}Technical Field [0001] The present invention relates to a structure of a filter incorporated in a reserve cup for a fuel pump,

본 발명은 연료펌프용 리저브컵에 내장되는 연료펌프 흡입구측 필터의 구조에 관한 것으로, 더욱 상세하게는 메쉬(mesh: 그물코)의 크기가 상이한 이종(異種) 재질이 필터들이 결합된 내장 필터에 관한 것으로 여과 성능을 증대시키고 연료 흡입 시의 유동성을 향상시키도록 구성된 연료펌프 흡입구측 필터의 장착 구조에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fuel pump inlet side filter housed in a reservoir cup for a fuel pump and more particularly to a built- To a mounting structure of a fuel pump inlet-side filter configured to increase filtration performance and improve fluidity at the time of fuel intake.

차량의 연료탱크는 액체 상태인 연료를 엔진으로 공급하기 위하여 연료펌프를 내장한다.The fuel tank of the vehicle incorporates a fuel pump for supplying fuel in a liquid state to the engine.

상기 연료펌프는 임펠러를 회전시키는 모터, 연료의 불순물을 여과시키는 필터, 전자장치 등이 모듈화되어 연료탱크 내에 장착되되, 관을 통하여 연료를 흡입하도록 구성되기도 하나 관을 삭제하고 연료펌프 자체가 연료의 수면 아래로 잠기도록 설치되기도 한다. The fuel pump includes a motor for rotating an impeller, a filter for filtering impurities of fuel, an electronic device, and the like, which are modularized and mounted in a fuel tank. The fuel pump is also configured to draw fuel through a pipe. It is also installed to be submerged under water.

이 경우, 임펠러로 유입되기 전 연료의 불순물들을 걸러내기 위해서 연료펌프 흡입구측에 필터가 장착되고, 연료탱크 내의 액체 연료가 연료 탱크 내에서 차량의 운전조건에 따른 유동이 발생하여도 연료 펌프의 연료 흡입부가 액체 연료의 수면 아래에 항상 잠겨 있게 하여 엔진으로의 연료 공급 안전성에 문제가 없도록 리저브컵이 장착된다. In this case, a filter is mounted on the fuel pump suction port side to filter impurities of the fuel before entering the impeller, and even if the liquid fuel in the fuel tank flows in the fuel tank according to the driving condition of the vehicle, The reservoir cup is mounted so that the suction portion is always submerged below the surface of the liquid fuel so that the fuel supply safety to the engine is not problematic.

도 1 을 참조하여 더 상세히 설명하면, 연료펌프(30)는 다른 제어장치 및 관(pipe)들과 모듈화되어 연료탱크(50) 내에 장착되되, 연료펌프 흡입부가 연료 수면 아래로 항상 잠겨 있게 연료 유동을 방지하기 위한 리저브컵(20) 내부에서 바닥면과 소정 거리를 두고 설치된다. 상기 연료펌프(30)는 내부로 연료를 흡입하여 엔진으로 공급할 수 있도록 내부에 임펠러(31)가 설치되며, 상기 임펠러(31)로 연료가 흡입되는 흡입구(32)는 연료펌프(30)의 바닥면에서 하측을 향하도록 즉, 리저브컵(20)의 바닥면을 향하도록 배치된다.1, the fuel pump 30 is modularized with other control devices and pipes and is mounted in the fuel tank 50 so that the fuel pump suction portion is always submerged below the fuel surface, And is disposed at a predetermined distance from the bottom surface in the reservoir cup 20 for preventing the above-described contamination. The fuel pump 30 is provided with an impeller 31 therein for sucking the fuel into the engine and supplying the fuel to the engine. The inlet 32 through which the fuel is sucked by the impeller 31 is connected to the bottom of the fuel pump 30, That is, toward the bottom surface of the reservoir cup 20, as shown in Fig.

그리고, 상기 리저브컵(20)은 원통형 형상으로서, 연료탱크(50)에 저장된 연료가 내부로 유입될 수 있도록 유입구가 형성된다. 상기 유입구는 연료펌프(30) 아래에서 바닥면과 외주면 하단에 형성된다. The reservoir cup 20 has a cylindrical shape and an inlet port is formed so that the fuel stored in the fuel tank 50 can be introduced into the reserve cup 20. The inlet port is formed below the fuel pump 30 at the bottom surface and at the bottom of the outer circumferential surface.

한편, 리저브컵(20) 내부로 유입된 연료의 이물질을 여과시키도록 연료펌프(30) 아래로 흡입구(32)와 필터(40)가 결합된다. 상기 필터(40)는 상면에 홈이 형성된 돌출부가 상측에 결합되고, 상기 연료펌프(30)는 돌출부의 홈에 끼워지도록 돌기부가 바닥면에 형성되어 이 둘의 끼움결합하여 장착이 이뤄진다.On the other hand, the suction port 32 and the filter 40 are coupled below the fuel pump 30 so as to filter the foreign substances of the fuel that has flowed into the reservoir cup 20. The protrusions are formed on the bottom surface of the filter 40 so as to fit into the grooves of the protrusions. The protrusions are grooved and fitted together.

따라서, 유입구를 통하여 리저브컵(20) 내부로 유입된 연료는, 필터(40)에서 이물질이 여과된 후 흡입구(32)를 통하여 임펠러(31)로 흡입되였다. 그리고, 연료 탱크 내의 이물질도 리저브컵(20) 내부로 유입되는 연료와 함께 연료에 포함되어 연료와 함께 유입구를 통해 리저브컵(20) 내부로 들어오게 된다. 또한 유입구는 연료탱크 내의 연료 유면이 아주 낮을 때까지 연료를 유입하기 위해 리저브컵의 하단, 즉 연료 펌프와 결합된 필터의 하단에 장착된다. 이로 인해 리저브컵 내부로 유입된 이물의 대부분은 리저브컵 하단 분포하게 되며 또한 필터(40)에 걸린 이물질은 중력에 의해 리저브컵(20) 바닥으로 다시 낙하한다.
Therefore, the fuel that has flowed into the reservoir cup 20 through the inlet port is sucked into the impeller 31 through the inlet port 32 after the foreign matter is filtered by the filter 40. The foreign matter in the fuel tank is included in the fuel together with the fuel flowing into the reservoir cup 20, and enters the reservoir cup 20 through the inlet port together with the fuel. The inlet is also mounted at the lower end of the reserve cup, i.e. the lower end of the filter, which is associated with the fuel pump, to introduce fuel until the fuel level in the fuel tank is very low. As a result, most of the foreign matter flowing into the reservoir cup is distributed at the lower end of the reservoir cup, and the foreign matter caught by the filter 40 drops back to the bottom of the reservoir cup 20 by gravity.

하지만, 상기 리저브컵에 내장된 필터는 이물질의 유입을 방지하기 위해 장착되나, 필터의 메쉬(mesh) 크기가 크면 이물질의 여과율이 나쁘고 직경이 작으면 여과율은 높아 미세한 이물까지 여과할 수 있으나 이물이 지속적으로 유입시 이물이 메쉬에 부착되어 메쉬 눈막힘(연료 통과 직경부를 막음)이 쉽게 발생함으로 필터의 수명을 저하 시키는 문제가 있었다. 즉, 메쉬가 크면 이물질이 임펠러로 유입될 확률이 커지고 이러한 이물질은 연료펌프의 고장원인이 되었으며, 특히 연료의 청정도가 나쁜 일부 지역의 경우 격자 타입의 메쉬로는 여과할 수 없는 고점도의 이물이 유입되면, 임펠러와 임펠러케이스에 부착되어 임펠러 회전 불량을 야기하는 문제점도 있었다. 그러고, 메쉬가 작으면 장기 사용시 메쉬 눈막힘이 발생하여 연료펌프가 유량 흡입시 유동저항이 증가되며 이로 인해 연료 펌프의 토출량 저하로 차량의 엔진에 연료를 공급하지 못해 차량에 트러블을 발생시킬 수 있었다. However, if the size of the mesh of the filter is large, the filtration rate of the foreign substance is bad. If the diameter of the filter is low, the filtration rate is high so that fine foreign matters can be filtered. However, There is a problem in that the life of the filter is deteriorated because the foreign matter adheres to the mesh continuously to prevent clogging of the mesh (blocking the fuel passing diameter portion). That is, when the mesh is large, the probability of the foreign matter to flow into the impeller increases, and the foreign matter causes the failure of the fuel pump. Especially, in some regions where the cleanliness of the fuel is poor, a high viscosity foreign matter The impeller and the impeller case are adhered to each other, causing the impeller rotation failure. If the mesh is small, mesh clogging occurs during long-term use, and the flow resistance of the fuel pump increases when the flow rate is sucked. As a result, the fuel pump can not supply fuel to the engine due to a decrease in the discharge amount of the fuel pump, .

따라서, 본 발명은 여과율은 향상되고 유동 저항이 작게 발생하는 연료펌프용 리저브컵에 내장된 연료 펌프 필터의 구조를 제공하는 것에 주목적이 있다.
Therefore, it is a main object of the present invention to provide a structure of a fuel pump filter incorporated in a reservoir cup for a fuel pump in which the filtration rate is improved and the flow resistance is small.

상기와 같은 목적을 달성하기 위한 본 발명은, 연료펌프용 리저브컵에 내장된 필터의 구조에 있어서, 상기 리저브컵은 연료펌프 및 필터를 내장하고 연료탱크 내부에 설치되되 상기 연료탱크에 저장된 연료가 내부로 유입되도록 유입구가 형성되며, 상기 연료펌프는 내부의 임펠러로 연결된 흡입구가 하측을 향하도록 배치되고 상기 흡입구의 아래로 필터가 고정결합되되, 상기 필터는 메쉬(mesh)의 크기가 상이한 제1필터와 제2필터가 결합되어 구성된 것을 특징으로 한다.In order to achieve the above object, according to the present invention, there is provided a structure of a filter incorporated in a reservoir cup for a fuel pump, the reservoir cup including a fuel pump and a filter, Wherein the fuel pump has a suction port connected to the inner impeller and a filter fixedly coupled to the suction port, wherein the filter has a first mesh having a mesh size different from that of the first mesh, And the filter is combined with the second filter.

상기 제1필터는 메쉬가 부정방향(不定方向)으로 배열된 부직포(non-woven fabric) 형태이고 제2필터는 격자망을 이루도록 메쉬가 형성된 형태이되, 상기 제1필터는 리저브컵 내에서 하측을 향하도록 배치되고 제2필터는 상측을 향하도록 배치된다. The first filter is a non-woven fabric in which meshes are arranged in an indefinite direction, and the second filter is a mesh formed to form a lattice network. The first filter has a lower side in the reservoir cup And the second filter is arranged to face upward.

그리고, 상기 유입구는 제2필터 하방(下方)에서 연료가 유입되도록 리저브컵의 바닥면 및 리저브컵의 외주면 하단 일측에 형성된다.The inlet is formed at the bottom of the reserve cup and at the bottom of the outer circumferential surface of the reservoir cup so that fuel flows in from below the second filter.

아울러, 상기 제1필터와 제2필터는 적층(積層)된 상태에서 둘레를 따라 테두리부분이 열융착되어 결합된다.In addition, the first filter and the second filter are joined together by thermally fusing the rim along the circumference in a state where the first filter and the second filter are laminated.

상기 제1필터는 메쉬가 10㎛ 내지 40 ㎛ 크기를 갖도록 형성되고, 상기 제2필터는 메쉬가 50 ㎛ 내지 70 ㎛ 크기를 갖도록 형성된다.
The first filter is formed such that the mesh has a size of 10 mu m to 40 mu m, and the second filter is formed such that the mesh has a size of 50 mu m to 70 mu m.

상기와 같은 구성의 본 발명은, 리저브컵 내부로 연료와 함께 이물이 유입되더라도 이물의 함유 정도가 높은 하단측에 부직포 타입의 제1필터을 적용함으로써 일반적인 점도의 이물질은 물론, 고점도의 이물질 또한 더 효율적으로 여과할 수 있는 효과가 있다.According to the present invention having the above-described structure, even if foreign matter flows into the reservoir cup together with the fuel, the first filter of the nonwoven fabric type is applied to the lower end side, which has a high content of foreign matter, It has an effect of being able to be filtered.

아울러, 이종의 필터가 결합되어 구성되므로 메시의 직경이 작은 일측 필터가 막혀 연료 흡입 유동저항이 증가하거나 또는 눈막힘이 발생하였을 지라도 최소한의 여과기능을 수행할 수 있으며, 이에 따라 종래 필터 보다 수명이 연장된 효과가 있다.In addition, because of the combination of different kinds of filters, one side filter having a small mesh diameter is clogged, so that even if the fuel suction flow resistance increases or clogging occurs, the filter can perform the minimum filtering function. There is an extended effect.

또한, 부직포 타입이며 메쉬의 크기가 작은 제1필터가 아래를 향하도록 배치되어 연료가 고온일 때 연료탱크 내에서 발생하는 베이퍼(vapor)가 임펠러로 유입되지 않도록 차단할 수 있으므로, 더 안정적인 토출 성능을 기대할 수 있다.
In addition, since the first filter having a non-woven fabric type and a small mesh size is arranged so as to face downward, the vapor generated in the fuel tank can be prevented from flowing into the impeller when the fuel is at a high temperature, You can expect.

도 1 은 종래의 필터가 장착된 연료펌프 모듈의 단면도,
도 2 는 본 발명의 바람직한 실시예에 따른 필터가 장착된 연료펌프 모듈의 단면도 및 부분확대도.1 is a sectional view of a fuel pump module equipped with a conventional filter,
2 is a cross-sectional view and a partial enlarged view of a fuel pump module equipped with a filter according to a preferred embodiment of the present invention.

이하, 도면을 참조하여 본 발명의 바람직한 실시예를 더욱 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

도 2 를 참조하면, 종래의 구조와 마찬가지로, 연료펌프(30)는 리저브컵(20) 내에 내장되어 연료탱크(50) 내에 장착되되, 리저브컵(20)의 내부에서 바닥면과 소정 거리를 두고 설치된다. 상기 연료펌프(30)는 내부로 연료를 흡입하여 엔진으로 공급할 수 있도록 내부에 임펠러(31)가 설치되며, 상기 임펠러(31)로 연료가 흡입되는 흡입구(32)는 연료펌프(30)의 바닥면에서 하측을 향하도록 즉, 리저브컵(20)의 바닥면을 향하도록 배치된다. 그리고, 상기 리저브컵(20)은 원통 형상으로서, 연료탱크(50)에 저장된 연료가 내부로 유입될 수 있도록 유입구가 형성된다. 상기 유입구는 연료펌프(30) 아래에 위치하며, 바닥면과 외주면 하단에 형성된다. 2, the fuel pump 30 is housed in the reservoir cup 20 and mounted in the fuel tank 50. The fuel pump 30 is disposed within the reservoir cup 20 at a predetermined distance from the bottom surface Respectively. The fuel pump 30 is provided with an impeller 31 therein for sucking the fuel into the engine and supplying the fuel to the engine. The inlet 32 through which the fuel is sucked by the impeller 31 is connected to the bottom of the fuel pump 30, That is, toward the bottom surface of the reservoir cup 20, as shown in Fig. The reservoir cup 20 has a cylindrical shape, and an inlet is formed so that the fuel stored in the fuel tank 50 can be introduced into the reserve cup 20. The inlet port is located below the fuel pump 30 and is formed at the bottom surface and the bottom of the outer circumferential surface.

한편, 리저브컵(20) 내부로 유입된 연료의 이물질을 여과시키도록 연료펌프(30) 아래로 흡입구(32)에 소정거리를 두고 본 발명의 필터(10)가 결합된다. 종래와 마찬가지로, 상기 필터(10)는 상면에 홈이 형성된 돌출부가 상측에 결합되고, 상기 연료펌프(30)는 돌출부의 홈에 끼워지도록 돌기부가 바닥면에 형성되어 이 둘의 끼움결합하여 필터(10)의 장착이 이뤄진다. The filter 10 of the present invention is coupled to the suction port 32 at a predetermined distance below the fuel pump 30 so as to filter the foreign substances of the fuel that has flowed into the reservoir cup 20. As in the prior art, the filter 10 has a protruding portion formed with a groove on the upper surface thereof, and the protruding portion is formed on the bottom surface of the fuel pump 30 so as to fit into the groove of the protruding portion, 10 is mounted.

하지만 본 발명의 필터(1)는 메쉬(mesh)의 크기가 상이한 제1필터(10a)와 제2필터(10b)가 면접착되어 구성된다. 상기 제1필터(10a)와 제2필터(10b)는 면접촉된 상태 또는 적층된 상태에서 둘레를 따라 테두리 부분이 열융착되어 접착이 이뤄진다. 그리고, 재질의 특성에 따라서 열융착으로 접착이 불가능한 경우, 테두리 부분을 접이한 후 접이된 부분에서 결합이 이뤄지도록 테두리에 (합성수지재 또는 접착제 등과 같은)고정부재를 인서트 사출하거나 결합시켜 접착이 이뤄질 수 있다. However, the filter 1 of the present invention is constructed such that the first filter 10a and the second filter 10b having different meshes are face-bonded. The first filter (10a) and the second filter (10b) are adhered to each other in a state of being in surface contact or in a laminated state. If the bonding can not be achieved by thermal fusion according to the characteristics of the material, a fixing member (such as a synthetic resin material or an adhesive agent) is injected or bonded to the rim so that bonding is performed at the folded portion after folding the rim portion. .

한편, 제1필터(10a)는 리저브컵(20) 내에서 바닥면을 향하고 제2필터(10b)는 상측을 향하도록 즉, 연료펌프(30)를 향하도록 배치된다. On the other hand, the first filter 10a is disposed so as to face the bottom surface in the reservoir cup 20 and the second filter 10b to face upward, that is, to face the fuel pump 30.

그리고, 본 발명에 따른 제1필터(10a)는 부직포(non-woven fabric) 타입으로서, 30㎛ 크기의 이물을 70%이상 여과할 수 있도록 메쉬가 10㎛ 내지 40 ㎛ 크기를 갖도록 형성되고, 제2필터(10b)는 메쉬가 격자 형태로 50 ㎛ 내지 70 ㎛ 크기를 갖도록 형성된 나일론(nylon) 와이어로 제조된다.The first filter 10a according to the present invention is a non-woven fabric type and is formed to have a mesh size of 10 to 40 탆 so as to filter 70% or more of foreign matter having a size of 30 탆, 2 filter 10b is made of a nylon wire formed so that the mesh has a size of 50 mu m to 70 mu m in a lattice form.

따라서, 유입구를 통하여 리저브컵(20) 내부로 유입된 연료에서 상대적으로 크고 중량감 있는 이물질은 리저브컵(20)의 바닥면에 침전되는 경향이 크므로, 흡입구(32)를 통하여 연료가 연료펌프(30) 내부로 흡입될 때, 이러한 이물질들은 메쉬의 크기가 더 작은 제1필터(10a)에 더 효율적으로 포집된다. Therefore, relatively large and heavy foreign substances in the fuel introduced into the reservoir cup 20 through the inlet port tend to settle on the bottom surface of the reservoir cup 20, so that the fuel is supplied through the inlet port 32 to the fuel pump 30, these foreign substances are more efficiently collected in the first filter 10a having a smaller mesh size.

그리고, 흡입구(32)와 마주하여 배치되며 메쉬의 크기가 더 크게 형성된 제2필터(10b)는, 흡입구(32)로의 연료 유동 중에 유동저항의 증가를 억제한다. 즉, 제1필터(10a)만으로 동일한 크기(제1필터와 제2필터가 결합된 크기)의 필터를 제조하는 경우보다, 제1필터(10a)에 제2필터(10b)가 결합됨으로서 상대적으로 연료의 필터투과율은 증대되므로 흡입구(32)로 유입되는 연료는 더 작은 유동저항을 갖는다.The second filter 10b, which faces the suction port 32 and has a larger mesh size, suppresses an increase in the flow resistance during the fuel flow to the suction port 32. [ That is, the second filter 10b is coupled to the first filter 10a, and the second filter 10b is relatively moved by the first filter 10a than when the first filter 10a is the same size (the size in which the first filter and the second filter are combined) The filter permeability of the fuel is increased so that the fuel flowing into the intake port 32 has a smaller flow resistance.

이상과 같이 본 명세서와 도면에 개시된 실시예들은 본 발명의 이해를 돕기 위해 특정 예를 제시한 것에 지나지 않으며, 본 발명의 범위를 제한하고자 하는 것은 아니다. 여기에 개시된 실시예들 이외에도 본 발명의 기술적 사상에 바탕을 둔 다른 변형예들이 실시 가능하다는 것은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 자명한 것이다.
As described above, the embodiments disclosed in the present specification and drawings are only illustrative of specific examples in order to facilitate understanding of the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

10 : 필터
20 : 리저브컵
30 : 연료펌프10: Filter
20: Reserve cup
30: Fuel pump

Claims (4)

연료펌프용 리저브컵에 내장된 필터의 구조에 있어서,
상기 리저브컵은 연료펌프 및 필터를 내장하고 연료탱크 내부에 설치되되 상기 연료탱크에 저장된 연료가 내부로 유입되도록 유입구가 형성되며,
상기 연료펌프는 내부의 임펠러로 연결된 흡입구가 하측을 향하도록 배치되고 상기 흡입구의 아래로 필터가 고정결합되되,
상기 필터는 메쉬(mesh)의 크기가 상이한 제1필터와 제2필터가 결합되어 구성되며,
상기 제1필터는 부직포(non-woven fabric) 형태이고 제2필터는 격자망을 이루도록 형성된 형태이되, 상기 제1필터는 리저브컵 내에서 하측을 향하도록 배치되고 제2필터는 흡입구와 마주하도록 배치된 것을 특징으로 하는 연료펌프용 리저브컵에 내장된 필터의 구조.
In the structure of the filter incorporated in the reserve cup for the fuel pump,
Wherein the reservoir cup has a fuel pump and a filter therein and is provided inside the fuel tank, an inlet port is formed to allow the fuel stored in the fuel tank to flow into the reservoir,
Wherein the fuel pump is disposed such that a suction port connected to an inner impeller is directed downward, and a filter is fixedly coupled to the suction port,
The filter includes a first filter and a second filter having different mesh sizes,
The first filter is in the form of a non-woven fabric and the second filter is formed in a lattice network. The first filter is arranged to face downward in the reservoir cup and the second filter is arranged to face the inlet Wherein the filter reservoir has a plurality of reservoirs.
삭제delete 제 1 항에 있어서, 상기 제1필터와 제2필터는 적층된 상태에서 둘레를 따라 테두리부분이 열융착되어 결합된 것을 특징으로 하는 연료펌프용 리저브컵에 내장된 필터의 구조.
The structure of a filter built in a reservoir cup for a fuel pump according to claim 1, wherein the first filter and the second filter are joined together by thermally fusing the rims along the circumference in a laminated state.
제 1 항 또는 제 3 항에 있어서, 상기 제1필터는 메쉬가 10㎛ 내지 40 ㎛ 크기를 갖도록 형성되고, 상기 제2필터는 메쉬가 50 ㎛ 내지 70 ㎛ 크기를 갖도록 형성된 것을 특징으로 하는 연료펌프용 리저브컵에 내장된 필터의 구조.

The fuel pump according to claim 1 or 3, wherein the first filter is formed such that the mesh has a size of 10 mu m to 40 mu m, and the second filter is formed such that the mesh has a size of 50 mu m to 70 mu m. The structure of the filter built into the reserve cup.

KR1020100083262A 2010-08-27 2010-08-27 Structure of filter mounted in reserve-cup for fuel pump KR101585419B1 (en)

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KR20230021791A (en) 2021-08-06 2023-02-14 현대자동차주식회사 Reservoir cup assembly of lpg fule tank for vehicle

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Publication number Priority date Publication date Assignee Title
KR20230021791A (en) 2021-08-06 2023-02-14 현대자동차주식회사 Reservoir cup assembly of lpg fule tank for vehicle

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