KR20030005859A - Apparatus for filling lpg fuel - Google Patents

Apparatus for filling lpg fuel Download PDF

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Publication number
KR20030005859A
KR20030005859A KR1020010041317A KR20010041317A KR20030005859A KR 20030005859 A KR20030005859 A KR 20030005859A KR 1020010041317 A KR1020010041317 A KR 1020010041317A KR 20010041317 A KR20010041317 A KR 20010041317A KR 20030005859 A KR20030005859 A KR 20030005859A
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KR
South Korea
Prior art keywords
gas
fuel
case
lpg
collecting
Prior art date
Application number
KR1020010041317A
Other languages
Korean (ko)
Inventor
김경식
Original Assignee
현대자동차주식회사
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Priority to KR1020010041317A priority Critical patent/KR20030005859A/en
Publication of KR20030005859A publication Critical patent/KR20030005859A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/002—Automated filling apparatus
    • F17C5/007—Automated filling apparatus for individual gas tanks or containers, e.g. in vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0139—Fuel stations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0178—Cars

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE: A charging apparatus for LPG fuel is provided to prevent environmental pollution and accidents as fire by restricting leakage of LPG and by reusing gas with collecting and discharging leaked gas in inserting or removing a charge gun. CONSTITUTION: An LPG(Liquefied Petroleum Gas) charging device comprises an LPG charge gun connected to a quick coupling of a fuel filler to inject fuel to a vehicle; a gas shutoff case(42) installed in the ends of the quick coupling and the charge gun to prevent leak of fuel; a gas collecting case(43) connected to the gas shutoff case to collect and discharge leaked gas; a button installed around the gas collecting case to control collection of fuel; and a gas shutoff lever installed in the rear part of the charge gun to regulate LPG. Leak of fuel is prevented by collecting and discharging gas in inserting or removing the charge gun.

Description

엘피지 연료 충전장치{APPARATUS FOR FILLING LPG FUEL}ELPGE Fuel Filler {APPARATUS FOR FILLING LPG FUEL}

본 발명은 엘피지(LPG) 연료 충전장치에 관한 것으로서, 보다 상세하게는 충전건을 끼우거나 탈거시 누출되는 가스를 포집토록 하는 엘피지 연료 충전장치에관한 것이다.The present invention relates to an LPG fuel filling device, and more particularly, to an LLP fuel filling device which collects a gas leaked when a filling gun is inserted or removed.

도 1 및 도 2에 도시된 바와 같이, 엘피지 연료 차량(1)의 연료도어(fuel door)(미도시)를 개방하고, 엘피지 충전기(10)와 연결된 충전건(gun)(20)을 이용하여 엘피지 연료를 차량(1)에 주입한다.As shown in FIGS. 1 and 2, a fuel door (not shown) of the LLP fuel vehicle 1 is opened and a gun 20 connected to the LLP charger 10 is used. Injects the LPI fuel into the vehicle 1.

이를 구체적으로 설명하면, 상기 충전건(20)을 잡고, 이 충전건(20)을 퀵 커플링(30)에 끼운다. 이어서, 충전을 완료시키고, 충전건(20)의 가스 차단 레버를 작동시킨다. 그리고 퀵 커플링(30) 탈거 레버를 당겨 충전건(20)을 탈거한다.In detail, the holding gun 20 is held, and the filling gun 20 is inserted into the quick coupling 30. Subsequently, the filling is completed and the gas shutoff lever of the filling gun 20 is operated. Then, the pull gun 20 is removed by pulling the quick coupling 30 removal lever.

그런데, 상기 충전건(20)을 차량의 가스 주입구의 퀵 커플링(30)에 끼우거나, 탈거시 가스 누출로 작업자가 작업기피를 하게 되고, 작업불만을 유발하게 한다. 그리고 이 누출 가스는 인체에 유해한 요인이 된다.By the way, the filling gun 20 is inserted into the quick coupling 30 of the gas inlet of the vehicle, or when removing the operator to avoid the work due to the gas leakage, causing the work complaints. And this leaking gas becomes a harmful factor to a human body.

이러한 문제의 원인은, 현재에는 별도의 누출 가스 포집장치가 없고, 가스 충전건(20)으로 차량 주입구의 퀵 커플링(30)에 장착해서 일정량만 주입하기 때문이다.The reason for such a problem is that there is no separate leak gas collecting device at present, and only a predetermined amount is injected by installing the gas filling gun 20 to the quick coupling 30 of the vehicle inlet.

이와 같이 누출되는 가스로 인해 폭발 및 화재사고가 우려된다. 다시 말해, 엘피지 연료 특성상 공기보다 밀도가 높기 때문에, 예컨대 공장내 지하로 가라앉아 오랜 동안 축적될 때 용접 및 절단작업 및 흡연으로 인한 폭발 및 화재가 우려된다.Such leaking gas may cause explosion and fire accidents. In other words, because of the higher density than the air due to the characteristics of the Elpji fuel, explosion and fire due to welding and cutting operations and smoking when, for example, settled underground in the factory and accumulated for a long time.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 충전건을 끼우거나, 탈거시 누출되는 가스를 포집하므로써, 엘피지 연료의 누출을 방지토록 한 엘피지 연료 충전장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, and an object of the present invention is to provide an LPG fuel filling device to prevent the leakage of the LPG fuel by inserting a filling gun or collecting the gas leaked when removed.

도 1은 일반적으로 엘피지 연료를 주입하는 상태를 나타내 보인 도면.1 is a view showing a state in which the injection of the LLP fuel in general.

도 2는 일반적인 엘피지 연료 충전건을 나타낸 개략적인 도면.FIG. 2 is a schematic representation of a typical LLP fuel filling gun. FIG.

도 3 및 도 4는 본 발명에 따른 엘피지 연료 충전장치의 구성을 개략적으로 나타내 보인 도면.3 and 4 schematically show the configuration of the LLP fuel filling apparatus according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

30. 퀵 커플링30. Quick Coupling

41. 연료 충전건41.Fuel filling gun

42. 가스차단 케이스42. Gas Block Case

43. 가스포집 케이스43. Gas collection case

45. 작동버튼45. Operation Button

46. 가스차단 레버46. Gas shutoff lever

상기와 같은 목적을 달성하기 위한 본 발명의 엘피지 연료 충전장치는, 차량의 연료 주입구의 퀵 커플링과 연결되어 상기 차량에 엘피지 연료를 주입하는 엘피지 연료 충전건과; 상기 퀵 커플링과 상기 충전건의 선단부에 설치되어 엘피지 연료를 상기 충전건 외부로의 누출을 방지하는 가스차단 케이스와; 상기 가스차단 케이스와 연결되어 누출되는 엘피지 연료를 포집하여 배출되도록 하는 가스포집 케이스와; 상기 가스포집 케이스의 외주면 일측에 설치되어 엘피지 연료의 포집 작동을 시작 및 종료되도록 하는 작동버튼과; 상기 충전건의 후방에 설치되어 엘피지 연료를 유동을 단속하는 가스차단 레버;를 포함하는 것을 그 특징으로 한다.In order to achieve the above object, the LLP fuel filling apparatus of the present invention is connected to the quick coupling of the fuel inlet of the vehicle, the LLP fuel filling gun for injecting LLP fuel into the vehicle; A gas shutoff case installed at the front end of the quick coupling and the filling gun to prevent leakage of LPG fuel to the outside of the filling gun; A gas collecting case connected to the gas blocking case to collect and discharge the leaked LLP fuel; An operation button installed at one side of the outer circumferential surface of the gas collecting case to start and end the collecting operation of the LLP fuel; And a gas shutoff lever installed at the rear of the filling gun to control the flow of the LLP fuel.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3 및 도 4에는 본 발명에 따른 엘피지 연료 충전장치를 개략적으로 나타낸 구성도가 도시되어 있다. 여기에서는 일반적인 엘피지 연료 충전장치의 구성 설명은 생략하고, 본 발명의 특징에 따른 구성만을 설명하기로 한다.3 and 4 schematically show the configuration of the LLP fuel filling apparatus according to the present invention. Here, the description of the configuration of the general LLP fuel filling apparatus will be omitted, and only the configuration according to the features of the present invention will be described.

도면을 참조하면, 본 발명에 따른 엘피지 연료 충전장치는, 차량의 연료 주입구의 퀵 커플링(30)과 연결되어 차량에 엘피지 연료를 주입하는 엘피지 연료 충전건(41)과, 상기 퀵 커플링(30)과 충전건(41)의 선단부에 설치되어 엘피지 연료를 충전건(41)의 외부로 누출되는 것을 방지하는 가스차단 케이스(42)와, 상기 가스차단 케이스(42)와 연결되어 누출되는 엘피지 연료를 포집하여 배출되도록 하는 가스포집 케이스(43)와, 상기 가스포집 케이스(43)의 외주면 일측에 설치되어 엘피지 연료의 포집 작동을 단속하는 작동버튼(button)(45)과, 상기 충전건(41)의 후방에 설치되어 엘피지 연료를 단속하는 가스차단 레버(46)를 포함하여 구성된다.Referring to the drawings, the LLP fuel filling apparatus according to the present invention is connected to the quick coupling 30 of the fuel inlet of the vehicle, the LLP fuel filling gun 41 for injecting LLP fuel into the vehicle, and the quick coupling ( 30 and the gas blocking case 42 which is installed at the front end of the filling gun 41 to prevent the leakage of the LPG fuel to the outside of the filling gun 41, and the LLP which is connected to the gas blocking case 42 and leaks. A gas collecting case 43 for collecting and discharging fuel, an operation button 45 installed at one side of the outer circumferential surface of the gas collecting case 43 to control the collection operation of the LLP fuel, and the filling gun ( It is configured to include a gas shutoff lever 46 installed at the rear of 41) to control the LPG fuel.

상기 가스포집 케이스(43)는, 선단부가 가스차단 케이스(42)와 연결되는 제1케이스(43a)와, 상기 제1케이스(43a)의 후단부에 연결되고, 포집된 엘피지 연료가 배출되도록 하는 배출구(43c)가 후단부에 구비된 제2케이스(43b)를 포함하여 구성된다.The gas collection case 43 is connected to a first case 43a having a front end connected to the gas shutoff case 42 and a rear end of the first case 43a, and configured to discharge the collected LLP fuel. The discharge port 43c is configured to include a second case 43b provided at the rear end.

한편, 도 4에서 설명되지 않은 참조부호 42a는 상기 퀵 커플링(30) 탈거부를 나타내 보인 것이다.On the other hand, reference numeral 42a which is not described in FIG. 4 shows the quick coupling 30 removing part.

상술한 바와 같은 구성을 갖는 본 발명에 따른 엘피지 연료 충전장치의 작용을 설명하면 다음과 같다. 여기에서는 일반적인 엘피지 연료 충전장치의 작용 설명은 생략하고, 본 발명의 특징에 따른 작용만을 설명하기로 한다.Referring to the operation of the LLP fuel filling apparatus according to the present invention having the configuration as described above are as follows. Here, the description of the operation of the general LLP fuel filling apparatus will be omitted, and only the operation according to the features of the present invention will be described.

도면을 다시 참조하면, 본 발명에 따른 엘피지 연료 충전장치는, 엘피지 차량의 연료 주입구의 퀵 커플링(30)에 엘피지 연료 충전용 충전건(41)을 끼우거나, 탈거시에 엘피지 연료가 작업자 및 작업장 내부로 누출되는 것을 방지하는 것이다.Referring back to the drawings, the LLP fuel filling apparatus according to the present invention, the LLP fuel filling gun 41 is inserted into the quick coupling 30 of the fuel inlet of the LPI vehicle, or when the LLP fuel is removed from the operator and It is to prevent leakage into the workplace.

이를 보가 구체적으로 설명하면, 상기 작동버튼(45)을 누르며, 가스 포집을 시작한다. 이어서, 충전건(41)을 퀵 커플링(30)에 끼우고, 충전건(41)의 가스차단 레버(46)를 열리도록 작동시킨다. 그리고 엘피지 연료를 주입하고, 주입이 완료되면, 상기 가스차단 레버(46)가 닫히도록 작동시킨다.In detail, this presses the operation button 45 and starts collecting gas. Subsequently, the filling gun 41 is inserted into the quick coupling 30 and operated to open the gas shutoff lever 46 of the filling gun 41. In addition, the LPG fuel is injected, and when the injection is completed, the gas shutoff lever 46 is operated to close.

이어서, 상기 퀵 커플링(30)의 탈거부를 당겨 충전건(41)을 탈거시키고, 상기 작동버튼(45)을 눌러 종료되도록 한다.Subsequently, the filling gun 41 is removed by pulling the removal portion of the quick coupling 30, and the operation button 45 is pressed to end.

상술한 바와 같이, 본 발명은 충전건(41)을 차량의 퀵 커플링(30)에 장착해서 충전하는 과정에서 누출되는 엘피지 연료를 외부로 누출되지 않도록 가스를 배출 및 포집한다.As described above, the present invention discharges and collects the gas so as to prevent leakage of the LLP fuel leaked during the filling process by mounting the filling gun 41 to the quick coupling 30 of the vehicle.

그리고 이렇게 배출 및 포집된 가스는 강제 배출 이송되어 예컨대 공장의 외부에 설치된 포집탱크(50)에 저장된다.Then, the discharged and collected gas is forcibly discharged and stored, for example, in a collection tank 50 installed outside the factory.

상술한 바와 같이 본 발명에 따른 엘피지 연료 충전장치는 다음과 같은 효과를 갖는다.As described above, the LLP fuel filling apparatus according to the present invention has the following effects.

엘피지 연료가 누출되지 않아 가스 냄새로 인한 작업 기피 현상이 해소되고, 작업장의 내부 및 외부의 환경이 개선될 수 있다.As the LLP fuel does not leak, work evasion due to gas smell is eliminated, and the environment inside and outside the workplace may be improved.

그리고 가스 누출로 인한 공장내 화재 및 위험을 방지할 수 있고, 누출된 엘피지 연료를 포집하여 재활용할 수 있다.In addition, it is possible to prevent fires and dangers in the factory due to gas leaks, and to collect and recycle the leaked LLP fuel.

본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 보호 범위는 첨부된 특허청구범위에 의해서만 정해져야 할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (2)

차량의 연료 주입구의 퀵 커플링과 연결되어 상기 차량에 엘피지 연료를 주입하는 엘피지 연료 충전건과;An LLP fuel filling gun connected to the quick coupling of the fuel inlet of the vehicle and injecting LLP fuel into the vehicle; 상기 퀵 커플링과 상기 충전건의 선단부에 설치되어 엘피지 연료를 상기 충전건 외부로의 누출을 방지하는 가스차단 케이스와;A gas shutoff case installed at the front end of the quick coupling and the filling gun to prevent leakage of LPG fuel to the outside of the filling gun; 상기 가스차단 케이스와 연결되어 누출되는 엘피지 연료를 포집하여 배출되도록 하는 가스포집 케이스와;A gas collecting case connected to the gas blocking case to collect and discharge the leaked LLP fuel; 상기 가스포집 케이스의 외주면 일측에 설치되어 엘피지 연료의 포집 작동을 시작 및 종료되도록 하는 작동버튼과;An operation button installed at one side of the outer circumferential surface of the gas collecting case to start and end the collecting operation of the LLP fuel; 상기 충전건의 후방에 설치되어 엘피지 연료를 유동을 단속하는 가스차단 레버;를 포함하는 것을 특징으로 하는 엘피지 연료 충전장치.And a gas shutoff lever installed at the rear of the filling gun to control the flow of the Elpji fuel. 제1항에 있어서, 상기 가스포집 케이스는,The method of claim 1, wherein the gas collection case, 선단부가 상기 가스차단 케이스와 연결되는 제1케이스와;A first case having a front end connected to the gas blocking case; 상기 제1케이스의 후단부에 연결되고, 포집된 엘피지 연료가 배출되도록 하는 배출구가 후단부에 구비된 제2케이스;를 포함하여 된 것을 특징으로 하는 엘피지 연료 충전장치.And a second case connected to a rear end of the first case and having an outlet for discharging the collected LPI fuel at a rear end of the first case.
KR1020010041317A 2001-07-10 2001-07-10 Apparatus for filling lpg fuel KR20030005859A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100967818B1 (en) * 2009-10-16 2010-07-05 대우조선해양 주식회사 Ship for supplying liquefied fuel gas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08295399A (en) * 1995-04-20 1996-11-12 Tokyo Gas Co Ltd Gas-filling nozzle
JPH11193100A (en) * 1998-01-07 1999-07-21 Junichi Amaike Liquid injecting nozzle
KR19990033294U (en) * 1999-04-03 1999-08-05 이용일 An Automotive gas filling valve
KR200219075Y1 (en) * 2000-10-16 2001-04-02 김병창 Gas injector for LPG vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08295399A (en) * 1995-04-20 1996-11-12 Tokyo Gas Co Ltd Gas-filling nozzle
JPH11193100A (en) * 1998-01-07 1999-07-21 Junichi Amaike Liquid injecting nozzle
KR19990033294U (en) * 1999-04-03 1999-08-05 이용일 An Automotive gas filling valve
KR200219075Y1 (en) * 2000-10-16 2001-04-02 김병창 Gas injector for LPG vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100967818B1 (en) * 2009-10-16 2010-07-05 대우조선해양 주식회사 Ship for supplying liquefied fuel gas

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