KR100439776B1 - Fuel hose for vehicle and method for manufacturing the same - Google Patents
Fuel hose for vehicle and method for manufacturing the same Download PDFInfo
- Publication number
- KR100439776B1 KR100439776B1 KR10-2001-0056488A KR20010056488A KR100439776B1 KR 100439776 B1 KR100439776 B1 KR 100439776B1 KR 20010056488 A KR20010056488 A KR 20010056488A KR 100439776 B1 KR100439776 B1 KR 100439776B1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- fuel hose
- manufacturing
- layer
- fkm
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title description 6
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 13
- 239000011737 fluorine Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 11
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- ADTHJEKIUIOLBX-UHFFFAOYSA-N 1,1,3,4,4,5,5,6,6,6-decafluoro-3-(trifluoromethyl)hex-1-ene Chemical compound FC(C(F)(F)F)(C(C(C(F)(F)F)(C=C(F)F)F)(F)F)F ADTHJEKIUIOLBX-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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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
- F02M37/0011—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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
Abstract
본 발명은 신법규가 규정하고 있는 연료투과성 제로(zero)를 만족시키는 동시에 연료가 연료호스를 투과하는 것을 차단시키는 특성, 즉 연료호스의 내연료투과성을 크게 향상시킬 수 있도록 불소수지(THV)를 이용한 자동차용 연료호스 및 그 제조 방법에 관한 것이다.The present invention provides a fluorine resin (THV) which satisfies the fuel permeability zero defined by the new law and blocks the fuel from permeating the fuel hose, that is, the fuel permeability of the fuel hose can be greatly improved. It relates to an automobile fuel hose used and a method of manufacturing the same.
이를 위해, 본 발명은 연료호스를 내층과 중간층과 외층의 3개 층으로 구성하되, 내층에는 FKM 튜브를, 중간층에는 불소수지(THV)를, 외층에는 에코(ECO)를 적용하여, 서로 일체가 되도록 한 구조의 연료호스 및 그 제조 방법을 제공한다.To this end, the present invention comprises a fuel hose consisting of three layers of inner layer, middle layer and outer layer, FKM tube in the inner layer, fluorine resin (THV) in the middle layer, echo (ECO) is applied to the outer layer, Provided is a fuel hose having a structure and a manufacturing method thereof.
Description
본 발명은 자동차용 연료호스 및 그 제조 방법에 관한 것으로서, 더욱 상세허게는 연료가 연료호스를 투과하는 것을 차단시키는 특성인 연료호스의 내연료투과성을 크게 향상시키는 동시에 신법규가 규정하고 있는 연료투과성 제로(zero)를 만족시킬 수 있도록 한 자동차용 연료호스 및 그 제조 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel hose for automobiles and a method for manufacturing the same, and more particularly, to improve fuel permeability of a fuel hose, which is a property of preventing the fuel from permeating the fuel hose, and at the same time, fuel permeability defined by the new law. The present invention relates to an automotive fuel hose and a method of manufacturing the same, capable of satisfying zero.
통상적으로 자동차용 연료공급장치는 엔진이 필요로 하는 적당한 혼합기를 공급하는 장치이며, 연료를 저장하는 연료탱크와, 연료속의 불순물을 제거하는 연료필터와, 이와 같은 연료장치 구성품들간을 연결하고 있는 연료파이프 또는 연료호스등으로 구성되어 있다.Typically, a fuel supply device for a vehicle is a device for supplying a suitable mixer required by an engine, and a fuel tank for storing fuel, a fuel filter for removing impurities in the fuel, and a fuel connecting the fuel device components. It consists of a pipe or fuel hose.
대개, 엔진에 근접한 연료 공급라인 및 리턴라인등은 엔진 구동시 진동에 따른 파손을 방지하는 동시에, 엔진 주위의 복잡한 구조에 따른 간섭을 최소화시키기 위해 굴곡 성형이 가능한 연료호스를 사용하고 있다.In general, the fuel supply line and the return line close to the engine use a fuel hose that can be bent in order to prevent damage caused by vibration when driving the engine and to minimize interference due to the complicated structure around the engine.
현재 사용하고 있는 연료호스는 FKM(Fluoro Rubber, Fluoro Carbon Monomer) 호스로서, 북미 수출 차량에 대한 신법규의 규제치가 요구하고 있는 연료투과성 제로를 만족시키지 못하고 있다.Fuel hoses currently in use are FKM (Fluoro Rubber, Fluoro Carbon Monomer) hoses, which do not meet the fuel permeability requirements of the new regulations on North American export vehicles.
법규의 변경사항을 살펴보면, 기존의 연료호스는 핫 소우크(Hot soak)시험과 다이어랄(Diurnal)시험을 하여, 연료호스로부터 투과되는 연료량이 2.0g/test 이하를 만족하면 되었지만, 신법규에서는 상기 핫 소우크 시험과 다이어랄 시험을 하여, 연료호스로부터 투과되는 연료량이 0.00g/test 이하 요구하고 있다.When looking at the changes in the regulations, the existing fuel hoses were subjected to the hot soak test and the dialural test, and the amount of fuel transmitted from the fuel hose had to satisfy 2.0g / test or less. The hot soak test and the dynamic test are conducted, and the amount of fuel transmitted from the fuel hose is required to be 0.00 g / test or less.
상기 핫 소우크 시험이란, 단품을 가열하여 내부에 있는 연료가 얼마나 외부로 유출되는 량을 측정하는 시험이고, 상기 다이어랄 시험은 차량의 연료계통을 연결한 후, 전체장치(연료탱크에서 엔진까지)를 밀폐된 곳에 넣어서 온도를 높이며엔진을 가동할 경우, 내부 연료가 외부로 유출되는 정도를 측정하는 시험을 말한다.The hot soak test is a test for measuring how much fuel is discharged to the outside by heating a single product, and the radial test is a whole device (fuel tank to engine) after connecting the fuel system of the vehicle. ) It is a test to measure the degree of leakage of internal fuel when the engine is operated by increasing the temperature by putting it in a sealed place.
이러한 시험의 결과, 현재 사용되고 있는 연료호스로는 신법규가 요구하고 있는 연료투과성 제로를 만족시키지 못하고 있기 때문에 연료투과성 제로를 만족시킬 수 있는 연료호스의 개발이 시급히 요구되고 있다.As a result of these tests, the fuel hose currently used does not satisfy the fuel permeability zero required by the new law, and therefore, the development of a fuel hose capable of satisfying the fuel permeability zero is urgently required.
따라서, 본 발명은 상기와 같은 점을 감안하여 안출한 것으로서, 연료가 연료호스를 투과하는 것을 차단시키는 특성, 즉 연료호스의 내연료투과성을 크게 향상시키는 동시에 신법규가 규정하고 있는 연료투과성 제로(zero)를 만족시킬 수 있도록 불소수지(THV)를 이용하여 제조된 자동차용 연료호스 및 그 제조 방법을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and the fuel blocking property that blocks the fuel from permeating the fuel hose, that is, the fuel permeability of the fuel hose is greatly improved, and the fuel permeability zero prescribed by the new law ( It is an object of the present invention to provide an automobile fuel hose manufactured using fluorine resin (THV) and a method of manufacturing the same to satisfy zero).
도 1은 본 발명에 따른 자동차용 연료호스를 나타내는 사시도,1 is a perspective view showing a fuel hose for a vehicle according to the present invention,
도 2는 본 발명에 따른 자동차용 연료호스를 나타내는 단면도,2 is a cross-sectional view showing a fuel hose for an automobile according to the present invention;
도 3은 본 발명에 따른 자동차용 연료호스의 제조 방법을 나타내는 개략도.3 is a schematic view showing a method of manufacturing a fuel hose for an automobile according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
10 : 내층 12 : 중간층10: inner layer 12: middle layer
14 : 외층 16 : 내고무 압출기14 outer layer 16: rubber extruder
18 : 스프레이 코팅기 20 : 불소수지 압출기18 spray coating machine 20 fluororesin extruder
22 : 히팅장치 24 : 에코 압출기22: heating device 24: eco-extruder
26 : 냉각 베스 100 : 연료호스26: cooling bath 100: fuel hose
상기한 목적을 달성하기 위한 본 발명의 연료호스는:Fuel hose of the present invention for achieving the above object:
내층과 중간층과 외층으로 구성하되, 내층(10)에는 FKM 튜브를, 중간층(12)에는 불소수지(THV)를, 외층(14)에는 에코(ECO)를 적용하여, 서로 본딩으로 일체가 되도록 한 구조를 특징으로 한다.It consists of an inner layer, an intermediate layer, and an outer layer, in which the FKM tube is applied to the inner layer 10, the fluorocarbon resin (THV) is applied to the intermediate layer 12, and the echo (ECO) is applied to the outer layer 14, thereby bonding them together. It is characterized by a structure.
상기 FKM 튜브로 된 내층(10)의 두께는 1∼2.5mm, 상기 불소수지로 된 중간층(12)의 두께는 0.3mm, 상기 에코로 된 외층(14)의 두께는 1∼2.5mm인 것을 특징으로 한다.The thickness of the inner layer 10 of the FKM tube is 1 to 2.5 mm, the thickness of the intermediate layer 12 of the fluorine resin is 0.3 mm, and the thickness of the outer layer 14 of the echo is 1 to 2.5 mm. It is done.
상기한 목적을 달성하기 위한 본 발명의 연료호스 제조방법은:Fuel hose manufacturing method of the present invention for achieving the above object is:
내고무 압출기로 내층을 이루는 FKM튜브를 압출하는 단계와; 상기 FKM튜브의 표면에 본딩을 위한 코팅재를 분사하는 단계; 상기 FKM튜브의 표면에 불소수지(THV)를 불소수지 압출기로 압출하여 일체화시키는 단계; 서로 일체화 된 상기 FKM튜브와 중간층의 불소수지를 히팅수단으로 가열하는 단계; 상기 불소수지의 표면에 외층을 이루는 에코를 압출하여 일체화시키는 단계; 서로 일체화 된 상기 내층의 FKM튜브와, 상기 중간층의 불소수지와, 상기 외층의 에코를 냉각 베스를 통과시켜 냉각시키는 단계로 이루어진 것을 특징으로 한다.Extruding the FKM tube constituting the inner layer with a rubber extruder; Spraying a coating material for bonding to the surface of the FKM tube; Extruding fluorine resin (THV) on the surface of the FKM tube with a fluororesin extruder to integrate the fluororesin; Heating the fluorine resin of the FKM tube and the intermediate layer integrated with each other by heating means; Extruding and integrating an echo forming an outer layer on a surface of the fluororesin; The FKM tube of the inner layer integrated with each other, the fluorine resin of the intermediate layer, and the echo of the outer layer are characterized in that it consists of a step of cooling through a cooling bath.
여기서 본 발명의 실시예를 첨부한 도면을 참조로 더욱 상세하게 설명하면 다음과 같다.Hereinafter, the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
첨부한 도 1은 본 발명에 따른 자동차용 연료호스를 나타내는 사시도이고, 도 2는 단면도이다.1 is a perspective view showing a fuel hose for a vehicle according to the present invention, Figure 2 is a cross-sectional view.
상기 연료호스(100)는 내층(10)와 중간층(12)과 외층(14)의 3개의 층으로 구성된 것으로서, 내층(10)에는 FKM 튜브가 적용되고, 중간층(12)에는 불소수지(THV: Tetra fluoro ethylene Hexa fluoro propylene Vinylidene fluoride)가 적용되며, 외층(16)에는 에코(ECO: Epichlorohydrin)가 적용되어, 서로 일체로 본딩된 구조를 이루고 있다.The fuel hose 100 is composed of three layers, an inner layer 10, an intermediate layer 12, and an outer layer 14. An FKM tube is applied to the inner layer 10, and a fluorine resin (THV) is applied to the intermediate layer 12. Tetra fluoro ethylene Hexa fluoro propylene vinylidene fluoride (ECO) is applied, and the outer layer (16) is applied with echo (ECO: Epichlorohydrin), forming a structure bonded integrally with each other.
이때, 상기 FKM 튜브로 이루어진 내층(10)의 두께는 1∼2.5mm가 되도록 하고, 상기 불소수지(THV)로 이루어진 중간층(12)의 두께는 0.3mm가 되도록 하며, 상기 에코(16)로 이루어진 외층의 두께는 1∼2.5mm가 되도록 하는 것이 바람직하다.At this time, the thickness of the inner layer 10 made of the FKM tube is 1 to 2.5mm, the thickness of the intermediate layer 12 made of the fluorine resin (THV) is 0.3mm, made of the echo 16 It is preferable to make the thickness of an outer layer into 1-2.5 mm.
이와 같은 구조의 자동차용 연료호스의 제조방법을 첨부한 도 3을 참조로 설명한다.A method of manufacturing a fuel hose for a vehicle having such a structure will be described with reference to FIG. 3.
본 발명의 연료호스(10)는 압출기에 의한 압출공정으로 제조되고, 내층(12)과 중간층(14)과 외층(16)이 서로 본딩되어 일체로 제조됨에 그 특징이 있다.The fuel hose 10 of the present invention is manufactured by an extrusion process by an extruder, and the inner layer 12, the intermediate layer 14, and the outer layer 16 are bonded to each other and are characterized in that they are integrally manufactured.
본 발명의 연료호스를 제조하기 위하여, 내고무 압출기(16)와, 스프레이 코팅기(18)와, 불소수지 압출기(20)와, 히팅장치(22)와, 에코 압출기(24)와, 냉각 베스(26)가 제조라인에 차례로 배열된다.In order to manufacture the fuel hose of the present invention, the rubber extruder 16, the spray coating machine 18, the fluororesin extruder 20, the heating device 22, the eco-extruder 24, the cooling bath ( 26) are arranged in sequence on the production line.
먼저, 내고무 압출기(16)로 상기 내층을 이루는 FKM튜브를 압출하는 단계가 진행된다.First, the step of extruding the FKM tube forming the inner layer by the rubber extruder 16 is in progress.
다음으로, 상기 내고무 압출기(16)를 빠져나온 상기 FKM튜브의 표면에 상기 스프레이 코팅기(18)에 의하여 본딩을 위한 코팅재가 분사된다.Next, a coating material for bonding is sprayed on the surface of the FKM tube exiting the rubber extruder 16 by the spray coater 18.
이어서, 상기 FKM튜브가 상기 불소수지 압출기(20)로 통과하게 되면, FKM 튜브 표면에 불소수지(THV)가 압출되어 일체화된다.Subsequently, when the FKM tube passes through the fluororesin extruder 20, the fluororesin THV is extruded and integrated on the surface of the FKM tube.
다음으로, 서로 일체화 된 내층(10)의 FKM튜브와 중간층(12)을 이루고 있는 불소수지를 히팅수단(22)이 가열하여, 후공정인 내층을 위한 에코를 입히는 공정이 용이하게 이루어지도록 한다.Next, the heating means 22 heats the fluorine resin constituting the FKM tube and the intermediate layer 12 of the inner layer 10 integrated with each other, so that a process of applying an echo for the inner layer, which is a post process, is easily performed.
다음으로, 상기 내층(10)의 FKM튜브에 중간층(12)의 불소수지가 압출 성형된 상태에서 상기 에코 압출기(24)를 경유하게 함으로써, 중간층(12)의 표면에 에코로 된 외층(14)이 압출로 일체 성형됨으로써, 상기 내층(10)의 FKM튜브와, 상기 중간층(12)의 불소수지와, 상기 외층(14)의 에코가 서로 일체로 본딩된 구조의 연료호스(100)로 제조된다.Next, the fluororesin of the intermediate layer 12 is extruded to the FKM tube of the inner layer 10 via the echo extruder 24, so that the outer layer 14 which is echoed on the surface of the intermediate layer 12. By integrally molding by this extrusion, the FKM tube of the inner layer 10, the fluorocarbon resin of the intermediate layer 12, and the echo of the outer layer 14 are manufactured from the fuel hose 100 having a structure in which the echoes are integrally bonded to each other. .
마지막으로, 상기 연료호스(100)를 냉각 베스(26)를 통과시켜 냉각시키게 된다.Finally, the fuel hose 100 is cooled by passing through the cooling bath 26.
상기와 같이 제조된 본 발명의 자동차용 연료호스(100)에 대한 상기 핫 소우크(Hot soak)시험과 상기 다이어랄(Diurnal)시험을 한 결과, 신법규가 요구하고 있는 연료투과량 0.00g/test을 만족시켰다.As a result of performing the hot soak test and the dialural test on the fuel hose 100 for automobiles of the present invention manufactured as described above, the fuel permeation amount required by the new law is 0.00g / test. Satisfied.
이는, 연료가 연료호스를 투과하는 것을 차단시키는 특성, 즉 연료호스의 내연료투과성이 크게 향상되었음을 의미한다.This means that the property of blocking the fuel from penetrating the fuel hose, that is, the fuel permeability of the fuel hose is greatly improved.
이상에서 본 바와 같이, 본 발명에 따른 자동차용 연료호스 및 그 제조 방법에 의하면, 연료호스를 FKM튜브로 된 내층과 불소수지로 된 중간층과 에코로 된 외층으로 압출 제조함에 따라, 신법규가 요구하고 있는 연료투과량 0.00g/test을 만족시키는 동시에 연료호스의 내연료투과성이 크게 향상되는 장점을 있다.As described above, according to the automotive fuel hose and the method for manufacturing the same according to the present invention, new laws and regulations are required as the fuel hose is extruded into an inner layer made of FKM tube, an intermediate layer made of fluorocarbon resin and an outer layer made of eco. It satisfies the fuel permeation 0.00g / test and the fuel permeability of the fuel hose is greatly improved.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0056488A KR100439776B1 (en) | 2001-09-13 | 2001-09-13 | Fuel hose for vehicle and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0056488A KR100439776B1 (en) | 2001-09-13 | 2001-09-13 | Fuel hose for vehicle and method for manufacturing the same |
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| Publication Number | Publication Date |
|---|---|
| KR20030023327A KR20030023327A (en) | 2003-03-19 |
| KR100439776B1 true KR100439776B1 (en) | 2004-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0056488A KR100439776B1 (en) | 2001-09-13 | 2001-09-13 | Fuel hose for vehicle and method for manufacturing the same |
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| Country | Link |
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| KR (1) | KR100439776B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102418817B (en) * | 2011-10-12 | 2013-05-29 | 宁波丰茂汽车零部件有限公司 | Automobile fuel oil evaporative rubber tube with composite structure and manufacturing method for automobile fuel oil evaporative rubber tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02190692A (en) * | 1989-01-18 | 1990-07-26 | Tokai Rubber Ind Ltd | Rubber hose |
| US5641445A (en) * | 1995-07-25 | 1997-06-24 | Cadillac Rubber & Plastics, Inc. | Apparatus and method for extruding multi-layered fuel tubing |
| KR19980063168A (en) * | 1996-12-30 | 1998-10-07 | 권문구 | Rubber hose for automobile fuel and manufacturing method thereof |
| US5941286A (en) * | 1994-06-30 | 1999-08-24 | Cadillac Rubber & Plastics, Inc. | Composite fuel and vapor barrier tube and process for making same |
-
2001
- 2001-09-13 KR KR10-2001-0056488A patent/KR100439776B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02190692A (en) * | 1989-01-18 | 1990-07-26 | Tokai Rubber Ind Ltd | Rubber hose |
| US5941286A (en) * | 1994-06-30 | 1999-08-24 | Cadillac Rubber & Plastics, Inc. | Composite fuel and vapor barrier tube and process for making same |
| US5641445A (en) * | 1995-07-25 | 1997-06-24 | Cadillac Rubber & Plastics, Inc. | Apparatus and method for extruding multi-layered fuel tubing |
| KR19980063168A (en) * | 1996-12-30 | 1998-10-07 | 권문구 | Rubber hose for automobile fuel and manufacturing method thereof |
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| KR20030023327A (en) | 2003-03-19 |
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