KR20030012604A - Back current checking device of gas for LPG bombe - Google Patents

Back current checking device of gas for LPG bombe Download PDF

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Publication number
KR20030012604A
KR20030012604A KR1020010046720A KR20010046720A KR20030012604A KR 20030012604 A KR20030012604 A KR 20030012604A KR 1020010046720 A KR1020010046720 A KR 1020010046720A KR 20010046720 A KR20010046720 A KR 20010046720A KR 20030012604 A KR20030012604 A KR 20030012604A
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South Korea
Prior art keywords
gas
valve
lpg
filling
fuel
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KR1020010046720A
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Korean (ko)
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배연노
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현대자동차주식회사
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Priority to KR1020010046720A priority Critical patent/KR20030012604A/en
Publication of KR20030012604A publication Critical patent/KR20030012604A/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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE: A device for preventing the back flow of gas for an LPG bombe is provided to reduce the dangers of gas outflow by installing a ball valve at the inside of a valve housing even when a filling hose is damaged. CONSTITUTION: A valve housing(10) is L-shaped tube, and a first connecting unit(12) is formed at one side of the valve housing to be connected to an introducing tube(2). A second connecting unit(13) is formed at the other side of the valve housing to be connected to a flexible hose(7) with a connector(17). A valve chamber(14) is formed at the inside of the valve housing. A ball valve(15) installed at the inside of the valve chamber rises by fuel pressure when filling fuel and supplies fuel to the bombe through the introducing tube, and falls when finishing fuel filling and prevents the back flow of the gas.

Description

엘피지붐베의 가스 역류 방지장치{Back current checking device of gas for LPG bombe}Back current checking device of gas for LPG bombe

본 발명은 LPG 붐베의 가스 역류 방지장치에 관한 것으로서, 특히 붐베의 유입관 입구측에 별도의 밸브하우징을 형성하고, 이 밸브하우징 내부에 가스 충진시 개방되고 가스 충진이 완료되면 가스 유동통로를 차단하는 볼밸브를 설치하므로서, 가스 충진시마다 작업자가 일일이 충전밸브를 개폐시키지 않아도 되므로 사용상의편리함을 제공하고, 가스 충진이 완료된 후에는 붐베 내부의 가스압에 의해 밸브체가 가스 유동통로를 강력하게 차단하므로 충전호스 및 충전구가 손상되더라도 가스의 유출위험으로부터 벗어날 수 있도록 한 LPG 붐베의 가스 역류 방지장치에 관한 것이다.The present invention relates to a gas backflow prevention device of the LPG boom, in particular, to form a separate valve housing on the inlet pipe inlet side of the boom, opening the gas filling inside the valve housing and shut off the gas flow passage when the gas filling is completed By installing a ball valve, the operator does not have to open and close the filling valve every time gas filling is provided for convenience, and after the gas filling is completed, the valve body strongly blocks the gas flow passage by the gas pressure inside the cylinder. The present invention relates to a gas backflow prevention device of an LPG boom, which enables the escape of a gas leak even if the hose and the filling port are damaged.

현재 출시되고 있는 LPG 차량에는 일정양의 LPG를 저장하기위한 붐베가 설치되고 있으며, 이 붐베로의 LPG 주입을위한 주입라인이 설치되고 있다.Currently, LPG vehicles are equipped with a boomb for storing a certain amount of LPG, and an injection line for LPG injection into the boombrough is installed.

도 1 은 종래의 LPG 붐베와 LPG 주입라인을 도시한 것으로서,1 shows a conventional LPG boom and LPG injection line,

차체(4)의 일단에 형성된 연료도어(3)의 내측으로 주유건의 결합을 위한 충전구(5)가 형성되어 있고, 이 충전구(5)의 후단으로 일정길이의 스틸파이프(6)가 연결되어 있다.Filling openings 5 are formed in the fuel doors 3 formed at one end of the vehicle body 4 to couple the fuel guns, and steel pipes 6 having a predetermined length are connected to the rear ends of the filling openings 5. It is.

붐베(1)의 입구측에는 LPG의 유입을 위한 유입관(2)이 형성되고, 이 유입관(2)에는 가스의 유출방지 및 개폐기능을 가지는 충전밸브핸들(2a)이 형성되어 있으며, 유입관(2)과 스틸파이프(6)는 플렉시블한 호스(7)로서 연결되어 있다.An inlet pipe 2 for inlet of LPG is formed at the inlet side of the hub 1, and the inlet pipe 2 is provided with a filling valve handle 2a having a function of preventing the opening and closing of gas, and an inlet pipe. (2) and the steel pipe (6) are connected as a flexible hose (7).

일반적으로 LPG 차량의 경우 안전을 위해서 LPG 충전시에만 상기 충전밸브핸들을 오픈시키고 충전 이외의 경우는 닫아주어야 하나 상기한 충전밸브의 위치가 차량의 플로어(Floor) 부위에 있기 때문에 이를 닫아주거나 열어주기위해서는 사용자가 도로면에 업드리거나 불편한 자세로 조작해야만 하므로 거의 대부분의 사용자가 LPG 충전밸브를 오픈시킨 상태로 사용하고 있다.In general, in case of LPG vehicles, for safety, the filling valve handle should be opened only when the LPG is filled and closed except for the filling, but the filling valve is closed or opened because the position of the filling valve is in the floor of the vehicle. In order to operate the user on the road surface or inconvenient posture, most users are using the LPG filling valves open.

상기와같은 이유로 인해 종래에는 충전구 또는 충전호스가 파손될경우 붐베 내부의 LPG 가스가 유출되어 화재의 원인으로 작용하게되는 문제점이 발생하고 있었다.For the reason as described above, when the filling port or the filling hose is broken, there is a problem that LPG gas flows out inside the boom and act as a cause of fire.

따라서, 상기 문제점을 해결하기 위한 본 발명은 붐베의 유입관 입구측에 별도의 밸브하우징을 형성하고, 이 밸브하우징 내부에 가스 충진시 개방되고 가스 충진이 완료되면 가스 유동통로를 차단하는 볼밸브를 설치하므로서, 가스 충진시마다 작업자가 일일이 충전밸브를 개폐시키지 않아도 되므로 사용상의 편리함을 제공하고, 가스 충진이 완료된 후에는 붐베 내부의 가스압에 의해 밸브체가 가스 유동통로를 강력하게 차단하므로 충전호스 및 충전구가 손상되더라도 가스의 유출위험으로부터 벗어날 수 있도록 한 LPG 붐베의 가스 역류 방지장치를 제공함을 목적으로 한다.Accordingly, the present invention for solving the above problems is to form a separate valve housing on the inlet pipe inlet side of the boom, open the gas filling inside the valve housing and when the gas filling is complete ball valve for blocking the gas flow passages Since the installation does not require the operator to open and close the filling valve every time the gas is filled, it provides convenience for use, and after the gas filling is completed, the valve body strongly blocks the gas flow passage by the gas pressure inside the cylinder, thus filling the filling hose and the filling port. It is an object of the present invention to provide a gas backflow prevention device of an LPG boom which can be released from the risk of gas leakage even if the gas is damaged.

상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,

LPG 가스의 유입을 위한 유입관이 돌출 형성되어있는 LPG 붐베에 있어서,In the LPG boom which protrudes the inlet pipe for the inflow of LPG gas,

'ㄴ'자 모양의 관으로서 그 일측에는 유입관에 결합되기 위한 제 1 접속부가 형성되고, 그 타측에는 컨넥터에 의해 플렉시블 호스와 연결되기 위한 제 2 접속부가 형성되어 있는 밸브하우징과;A valve housing having a 'b'-shaped tube having a first connection portion formed at one side thereof to be coupled to the inflow tube, and a second connection portion formed at the other side thereof to be connected to the flexible hose by a connector;

상기 제 1 접속부가 형성된 밸브하우징의 내부에 상측은 넓고 하측은 좁게 형성되는 밸브실과;A valve chamber having a wide upper side and a narrow lower side in the valve housing in which the first connection part is formed;

상기 밸브실 내부에 설치되며 연료주입시 연료압에 의해 상승하여 연료가 유입관을 통해 붐베 내부로 공급되도록 하고, 연료주입이 완료되면 하강하여 LPG 가스의 역류를 차단하는 볼밸브; 로 구성된 것을 특징으로 한다.A ball valve installed inside the valve chamber so as to rise by fuel pressure during fuel injection so that fuel is supplied into the boom through the inlet pipe, and when fuel injection is completed, the ball valve lowers to block the reverse flow of LPG gas; Characterized in that consisting of.

그리고, 상기 밸브실의 상단에는 볼밸브의 과도한 상승을 막아주기 위한 스톱퍼돌기가 내향 돌출 형성된 것을 특징으로 한다.In addition, the upper end of the valve chamber is characterized in that the stopper protrusion for preventing excessive rise of the ball valve formed inwardly projecting.

도 1 은 종래의 엘피지붐베를 보인 도면.1 is a view showing a conventional Lizzy boom.

도 2 는 본 발명의 가스 역류 방지장치를 보인 도면.2 is a view showing a gas backflow prevention device of the present invention.

도 3 은 도 2 의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.

※도면의 주요부분에 대한 부호의 설명※ Explanation of symbols for main parts of drawing

1 : 붐베 2 : 유입관1: Boom 2: Inflow pipe

10 : 밸브하우징 11 : 가스 유동통로10: valve housing 11: gas flow passage

12,13 : 접속부 14 : 밸브실12,13 connection part 14 valve chamber

15 : 볼밸브 16 : 스톱퍼돌기15: ball valve 16: stopper projection

첨부된 도면 도 2 와 도 3 은 상기 목적달성을 위한 본 발명을 도시한 것으로서, 이 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.2 and 3 show the present invention for achieving the above object, the preferred embodiment of the present invention with reference to the drawings as follows.

본 발명의 설명에 있어서 종래와 동일 구성요소에 대해서는 동일부호 처리하여 중복설명을 피했다.In the description of the present invention, the same components as those of the prior art are denoted by the same reference numerals to avoid duplicate explanation.

도면부호 10은 유입관(2)과 플렉시블 호스(7)의 사이에 설치되는 밸브하우징을 나타내는데, 이 밸브하우징(10)은 도 3 에 도시된 바와같이 그 전체적인 형상이 'ㄴ'자 모양으로 형성되고, 그 내부에는 가스의 이동을 위한 가스유동통로(11)가 형성되어 있다.Reference numeral 10 denotes a valve housing installed between the inlet pipe 2 and the flexible hose 7, the valve housing 10 is formed in the shape of the 'b' shape as shown in FIG. The gas flow passage 11 is formed therein for gas movement.

밸브하우징(10)의 일측에는 상측의 유입관(2)에 결합되기 위한 제 1 접속부(12)가 형성되어 있고, 그 타측에는 플렉시블 호스(7)와 결합되기 위한 제 2 접속부(13)가 형성된다.One side of the valve housing 10 is formed with a first connection portion 12 for coupling to the upper inlet pipe 2, and a second connection portion 13 for coupling with the flexible hose 7 is formed on the other side thereof. do.

제 2 접속부(13)는 별도의 컨넥터(17)에 의해 플렉시블 호스(7)와 결합된다.The second connecting portion 13 is coupled to the flexible hose 7 by a separate connector 17.

도면부호 14는 밸브실을 나타내는데, 이 밸브실(14)은 제 1 접속부(12)가 형성되어 있는 밸브하우징(10)의 내부에 형성되고, 상측은 넓고 하측은 좁아지면서 밸브유동통로(11)와 연통되도록 형성된다.Reference numeral 14 denotes a valve chamber, which is formed inside the valve housing 10 in which the first connecting portion 12 is formed, and the valve flow passage 11 becomes wider at the upper side and narrower at the lower side. It is formed to communicate with.

상기 밸브실(14)의 내부에 구형의 볼밸브(15)가 설치된다.A spherical ball valve 15 is provided inside the valve chamber 14.

상기 볼밸브(15)는 일정 하중을 가지는 것을 사용하는 것이 바람직하다.The ball valve 15 is preferably used having a constant load.

그리고, 상기 밸브실(14)의 상단에는 볼밸브(15)가 과도하게 상승하는 것을 막아주기 위한 스톱퍼돌기(16)가 내향 돌출 형성되어 있다.In addition, a stopper protrusion 16 for preventing the ball valve 15 from excessively rising is formed at the upper end of the valve chamber 14 to protrude inward.

이와같이 구성된 본 발명의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above is as follows.

LPG 가스가 주입되지 않을때 볼밸브(15)는 도 3 에 도시된 바와같이 밸브실(14)의 하측에 위치하여 가스유동통로(11)를 차단한 상태로 유지된다.When the LPG gas is not injected, the ball valve 15 is located under the valve chamber 14 as shown in FIG.

이때, 충전구(5)를 통해 LPG 가스가 유입되면 유입되는 LPG가스의 충전압력(약 4Kg/cm2)이 볼밸브(15)에 가해지게 된다.At this time, when the LPG gas is introduced through the filling port (5), the filling pressure (about 4Kg / cm 2 ) of the incoming LPG gas is applied to the ball valve (15).

볼밸브(15)는 상기 LPG 가스의 충전압력에 의해 도 3 의 점선도시된 부분과 같이 상승하면서 가스유동통로(11)를 개방하게되고, 이에의해 충전구(5)를 통해 공급되는 LPG 가스가 유입관(2)을 통해 붐베(1)로 공급되게 되는 것이다.The ball valve 15 opens the gas flow passage 11 while rising as shown by the dotted line in FIG. 3 by the filling pressure of the LPG gas, whereby the LPG gas supplied through the filling port 5 It is to be supplied to the boom (1) through the inlet pipe (2).

LPG 가스의 충진이 완료되면, 충전구(5) 쪽으로부터 더이상의 LPG 가스가 공급되지 않게되고, 또 붐베(1) 내부에는 충진된 LPG 가스의 압력이 역으로 볼밸브(15)에 가해지게되어 볼밸브(15)는 다시 밸브실(14)의 하측으로 이동하여 가스유동통로(11)를 차단하게되는 것이다.When the filling of the LPG gas is completed, no further LPG gas is supplied from the filling port 5 side, and the pressure of the filled LPG gas is reversely applied to the ball valve 15 inside the boom barrel 1. The ball valve 15 again moves to the lower side of the valve chamber 14 to block the gas flow passage 11.

상기와같이 동작하는 본 발명에 의하면 LPG 가스의 주입시에는 가스 주입 압력에 의해 볼밸브(15)가 상승하면서 가스유동통로(11)가 개방되어 가스주입이 원활히 이루어지게되고, 가스 주입이 완료되면 자동으로 볼밸브(15)가 하강하여 가스유동통로(11)가 차단되므로서 LPG 가스의 역류를 방지할 수 있게되는 것이다.According to the present invention operating as described above when the LPG gas is injected, the gas flow passage 11 is opened while the ball valve 15 is raised by the gas injection pressure to facilitate the gas injection, and when the gas injection is completed The ball valve 15 is automatically lowered so that the gas flow passage 11 is blocked, thereby preventing the reverse flow of the LPG gas.

또한, 충전구 및 플렉시블호스(7)가 손상되더라도 상기 볼밸브(15)에 의해LPG 가스의 역류가 미연에 방지되므로 가스의 유출현상을 원천봉쇄할 수 있게되어 사용상의 안전성을 확보할 수 있게된다.In addition, even if the filling port and the flexible hose 7 is damaged, the reverse flow of the LPG gas is prevented by the ball valve 15 so that the outflow of the gas can be blocked at the source, thereby ensuring safety of use. .

이상에서 설명한 바와같이 본 발명은 붐베의 유입관 입구측에 별도의 밸브하우징을 형성하고, 이 밸브하우징 내부에 가스 충진시 개방되고 가스 충진이 완료되면 가스 유동통로를 차단하는 볼밸브를 설치하므로서, 가스 충진시마다 작업자가 일일이 충전밸브를 개폐시키지 않아도 되므로 사용상의 편리함을 제공하고, 가스 충진이 완료된 후에는 붐베 내부의 가스압에 의해 밸브체가 가스 유동통로를 강력하게 차단하므로 충전호스 및 충전구가 손상되더라도 가스의 유출위험으로부터 벗어날 수 있도록 한 LPG 붐베의 가스 역류 방지장치를 제공하는 효과를 기대할 수 있다.As described above, the present invention forms a separate valve housing at the inlet side of the inlet pipe of the boom, and installs a ball valve inside the valve housing to shut off the gas flow passage when gas filling is completed and gas filling is completed. When filling the gas, the operator does not have to open and close the filling valve one by one, providing convenience for use.After the filling is completed, the valve body strongly blocks the gas flow passage by the gas pressure inside the boom, so that the filling hose and filling port may be damaged. The effect of providing a gas backflow prevention device for LPG booms that can escape the risk of gas leakage can be expected.

Claims (2)

LPG 가스의 유입을 위한 유입관(2)이 돌출 형성되어있는 LPG 붐베에 있어서,In the LPG boom which protrudes the inlet pipe (2) for the inflow of LPG gas, 'ㄴ'자 모양의 관으로서 그 일측에는 유입관(2)에 결합되기 위한 제 1 접속부(12)가 형성되고, 그 타측에는 컨넥터(17)에 의해 플렉시블 호스(7)와 연결되기 위한 제 2 접속부(13)가 형성되어 있는 밸브하우징(10)과;As the 'b' shaped tube, a first connection part 12 is formed at one side thereof to be coupled to the inlet pipe 2, and a second side thereof is connected to the flexible hose 7 by a connector 17 at the other side thereof. A valve housing 10 in which a connection portion 13 is formed; 상기 제 1 접속부(12)가 형성된 밸브하우징(10)의 내부에 상측은 넓고 하측은 좁게 형성되는 밸브실(14)과;A valve chamber 14 having a wide upper side and a narrow lower side in the valve housing 10 having the first connection part 12 formed therein; 상기 밸브실(14) 내부에 설치되며 연료주입시 연료압에 의해 상승하여 연료가 유입관(2)을 통해 붐베(1) 내부로 공급되도록 하고, 연료주입이 완료되면 하강하여 LPG 가스의 역류를 차단하는 볼밸브(15); 로 구성된 것을 특징으로 하는 엘피지 붐베의 가스 역류 방지장치.It is installed inside the valve chamber 14 and rises by fuel pressure when fuel is injected so that fuel is supplied into the boom beet 1 through the inlet pipe 2, and when fuel injection is completed, the fuel cell is lowered to reverse flow of LPG gas. A shut off ball valve 15; Gas backflow prevention device of the Elpji Boombe, characterized in that consisting of. 제 1 항에 있어서,The method of claim 1, 상기 밸브실(14)의 상단에는 볼밸브(15)의 과도한 상승을 막아주기 위한 스톱퍼돌기(16)가 내향 돌출 형성된 것을 특징으로 하는 엘피지 붐베의 가스 역류 방지장치.Stopper projections for preventing the excessive rise of the ball valve 15 in the upper end of the valve chamber 14, the gas backflow prevention device of the LLP boom characterized in that the protrusion formed inward.
KR1020010046720A 2001-08-02 2001-08-02 Back current checking device of gas for LPG bombe KR20030012604A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05262357A (en) * 1991-09-27 1993-10-12 Briggs & Stratton Corp Pour spout
JPH1073028A (en) * 1996-08-29 1998-03-17 Futaba Corp Fuel-pressure control valve for model engine
KR19990031776A (en) * 1997-10-14 1999-05-06 김규현 Cleaner Container for Semiconductor Package
KR19990071511A (en) * 1995-11-21 1999-09-27 빌프리더 하이더 High Temperature Corrosive Melt Pumps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05262357A (en) * 1991-09-27 1993-10-12 Briggs & Stratton Corp Pour spout
KR19990071511A (en) * 1995-11-21 1999-09-27 빌프리더 하이더 High Temperature Corrosive Melt Pumps
JPH1073028A (en) * 1996-08-29 1998-03-17 Futaba Corp Fuel-pressure control valve for model engine
KR19990031776A (en) * 1997-10-14 1999-05-06 김규현 Cleaner Container for Semiconductor Package

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