KR100252239B1 - Multistage pressure valve of fuel tank - Google Patents

Multistage pressure valve of fuel tank Download PDF

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Publication number
KR100252239B1
KR100252239B1 KR1019960038094A KR19960038094A KR100252239B1 KR 100252239 B1 KR100252239 B1 KR 100252239B1 KR 1019960038094 A KR1019960038094 A KR 1019960038094A KR 19960038094 A KR19960038094 A KR 19960038094A KR 100252239 B1 KR100252239 B1 KR 100252239B1
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South Korea
Prior art keywords
fuel tank
pressure valve
spring
fuel
cylinder
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KR1019960038094A
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Korean (ko)
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KR19980019849A (en
Inventor
이병철
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정몽규
현대자동차주식회사
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Priority to KR1019960038094A priority Critical patent/KR100252239B1/en
Publication of KR19980019849A publication Critical patent/KR19980019849A/en
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Publication of KR100252239B1 publication Critical patent/KR100252239B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

PURPOSE: A multistage pressure valve of a fuel tank is provided to simplify the external structure of the fuel tank and to reduce a cost by being installed in the upper portion of the fuel tank. CONSTITUTION: A fuel injecting pipe is combined with the side of a fuel tank and a multistage pressure valve(6) is installed in the upper portion of the fuel tank. The multistage pressure valve consists of a cylinder(7), a disc(8) and a spring(9). On injecting fuel to the fuel tank through the fuel injecting pipe, the vapor pressure of the fuel tank is increased and the disc is lifted against the spring. When the vapor pressure is more than the resilient force of the spring, a through hole(11) of the disc is fitted with a groove(10) of the cylinder to discharge fluid and vapor to a canister through the groove of the cylinder and the through hole of the disc. After that, vapor pressure in the fuel tank is decreased and the disc is moved downward with the elastic force of the spring.

Description

자동차의 연료 탱크 다단 압력 밸브Automotive fuel tank multi-stage pressure valve

본 발명은 자동차의 연료 탱크에 설치된 다단 압력 밸브에 관한 것으로, 특히 연료 탱크 내부의 증기압에 의해 연료 탱크의 내부에 형성된 증기압을 조절할 수 있도록 한 자동차의 연료 탱크 다단 압력 밸브에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-stage pressure valve installed in a fuel tank of an automobile, and more particularly to a multi-stage pressure valve for a fuel tank of an automobile which can control a vapor pressure formed inside a fuel tank by a vapor pressure inside the fuel tank.

종래의 연료 탱크 구조는 도 1 에 나타낸 바와 같이, 연료 탱크(1)의 상부에 투 웨이 밸브(4)를 설치하고, 상기 투 웨이 밸브(4)를 케니스터(5)와 연결한다.As shown in Fig. 1, a conventional fuel tank structure is provided with a two-way valve 4 on the upper portion of the fuel tank 1 and connects the two-way valve 4 with the kenister 5.

상기 연료 탱크(1)의 측면에 연료 주입용 파이프(2)를 결합하고, 상기 연료 주입용 파이프(2)와 평행되게 레벨링 튜브(3)를 부착한다.A fuel injection pipe (2) is connected to the side surface of the fuel tank (1), and a leveling tube (3) is attached parallel to the fuel injection pipe (2).

이러한 종래의 구성에서는 투 웨이 밸브(4)와 레벨링 튜브(3)가 이원화 되어 있으므로, 연료 탱크(1) 내에 연료 공급시나 자동차의 주행에 의한 유동으로 연료 탱크 내(1)의 증기압 상승에 따른 케니스터(5)로의 유증기 배출이 투 웨이 밸브(4)와 레벨링 튜브(3)에 의해 유증기를 배출하여 연료 탱크(1) 내에 상승된 증기압에 대처하게 된다. .In this conventional configuration, since the two-way valve 4 and the leveling tube 3 are two-dimensionally arranged, the flow of fuel in the fuel tank 1 or the running of the automobile causes the fuel pressure in the fuel tank 1 to increase, The vapor discharge to the stirrer 5 is discharged by the two-way valve 4 and the leveling tube 3 to cope with the elevated vapor pressure in the fuel tank 1. .

상기와 같은 투 웨이 밸브(4)와 레벨링 튜브(3)의 구조에서는 구조가 복잡하고 제작 비용이 상승하게 되는 문제점이 있었다.There is a problem in that the structure of the two-way valve 4 and the leveling tube 3 is complicated and the manufacturing cost is increased.

따라서, 본 발명은 상기한 문제점을 해소하기 위하여 안출한 것으로, 그 목적은 연료 탱크와 연료 탱크에 결합된 각 구성품의 구조를 간소화하고 제작 원가를 절감 할 수 있도록 하는 자동차의 연료 탱크 다단 압력 밸브를 제공하는데 있다.SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a fuel tank multi-stage pressure valve for a vehicle, which simplifies the structure of each component coupled to the fuel tank and the fuel tank, .

상기와 같은 목적을 달성하기 위하여 본 발명은 연료 탱크의 상부에 단단 압력 밸브를 설치한 것으로, 상기 다단 압력 밸브는 측벽에 케니스터와 연결된 통로를 형성하고, 내벽에 다단의 홈을 형성한 실린더와;According to an aspect of the present invention, there is provided a fuel supply system including a fuel tank having a single end pressure valve, a multi-stage pressure valve having a sidewall formed with a passage connected to the canister, ;

상기 실린더 내의 상부에 스프링을 삽입하고, 상기 스프링의 하부에 내부 및 하부에 공간을 형성하고 측벽에는 다단으로 관통된 홀을 형성한 디스크를 삽입한 것을 그 기술적 구성상의 기본 특징으로 한다.A spring is inserted into an upper portion of the cylinder, and a disk is formed in the lower portion of the spring, and a hole is formed in the lower portion of the spring at the lower portion of the cylinder.

도 1 은 종래의 연료 탱크와 투 웨이 밸브의 구성을 나타낸 구성도.1 is a block diagram showing a configuration of a conventional fuel tank and a two-way valve.

도 2 는 본 발명의 연료 탱크와 다단 압력 밸브의 구성을 나타낸 구성도.2 is a configuration view showing the configuration of a fuel tank and a multi-stage pressure valve of the present invention.

도 3 은 본 발명의 다단 압력 밸브의 구조를 나타낸 단면도.3 is a sectional view showing the structure of a multi-stage pressure valve of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Description of the Related Art [0002]

1 ; 연료 탱크 2 ; 연료 주입용 파이프One ; Fuel tank 2; Fuel injection pipe

3 ; 레벨링 튜브 4 ; 투 웨이 밸브3; Leveling tube 4; Two Way Valve

5 ; 케니스터 6 ; 다단 압력 밸브5; Kenister 6; Multi-stage pressure valve

7 ; 실린더 8 ; 디스크7; Cylinder 8; disk

9 ; 스프링 10 ; 홈9; Spring 10; home

11 ; 홀11; hall

위와 같이 구성된 본 발명의 실시 예를 첨부된 도면을 참조하면서 상세히 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2 및 도 3 에 나타낸 바와 같이, 연료 탱크(1)의 측면에는 연료 주입용 파이프(2)를 결합하고, 상기 연료 탱크(1)의 상부에는 다단 압력 밸브(6)를 설치하며, 상기 다단 압력 밸브(6)는 밸브 몸체를 형성한 실린드(7)와 상기 실린드(7) 내에 조립되는 디스크(8) 및 스프링(9)으로 구성된다.2 and 3, a fuel injection pipe 2 is coupled to a side surface of the fuel tank 1, a multi-stage pressure valve 6 is provided at an upper portion of the fuel tank 1, The pressure valve 6 is composed of a cylinder 7 forming a valve body and a disk 8 and a spring 9 assembled in the cylinder 7.

상기 다단 압력 밸브(6)의 실린더(7)는 측벽에 케니스터(5)와 연결된 통로를 형성하고, 내벽에 다단의 홈(10)을 형성한다.The cylinder (7) of the multi-stage pressure valve (6) forms a passage connected to the canister (5) on the side wall and a multi-stage groove (10) on the inner wall.

상기 디스크(8)는 내부 및 하부는 공간을 형성하며, 측벽에 다단으로 관통된 홀(11)을 형성한다.The disk 8 forms a space inside and below it and forms a hole 11 through the side wall at multiple stages.

상기 다단 압력 밸브(6)의 실린더(7)의 상부에 스프링(9)을 삽입하고, 상기 스프링(9)의 하부에 디스크(8)를 삽입하여 다단 압력 밸브(6)를 구성한다.A spring 9 is inserted into an upper portion of a cylinder 7 of the multi-stage pressure valve 6 and a disc 8 is inserted into a lower portion of the spring 9 to constitute a multi-stage pressure valve 6.

이러한 본 발명의 작용 및 효과를 설명하면,Describing the operation and effect of the present invention,

연료 탱크(1) 내에 연료 주입용 파이프(2)를 통하여 연료를 주입하게 되면, 연료 탱크(1) 내부는 증기압이 상승하게 되며, 연료 탱크(1) 내부에서 상승된 증기압은 연료 탱크(1)의 상부에 설치된 다단 압력 밸브(6)의 실린더(7) 내에 조립된 디스크(8)에 상승력을 작용하게 되고, 상기 디스크(8)의 상부에 위치한 스프링(9)에 의하여 반발력이 작용하게 된다.When the fuel is injected into the fuel tank 1 through the fuel injection pipe 2, the vapor pressure inside the fuel tank 1 is increased and the vapor pressure raised inside the fuel tank 1 is supplied to the fuel tank 1, And a repulsive force is exerted by the spring 9 located on the upper portion of the disk 8. The pressure of the spring 8 is adjusted by the spring 9,

연료 탱크(1)의 내부에 생성된 증기압이 증가되어 스프링(9)의 탄성력 보다 크게 되면 디스크(8)는 상부로 이동하게 되며, 디스크(8)의 측벽 하단에 형성된 관통 홀(11)과 실린더(7)의 최하단에 형성된 홈(10)이 대응되며, 소량의 유증기를 디스크(8)의 관통 홀(11)을 통하여 실린더(7)의 홈(10)을 지나 케니스터(5)로 배출하게 된다.When the steam pressure generated in the fuel tank 1 is increased to be larger than the elastic force of the spring 9, the disk 8 is moved upward and the through hole 11 formed in the lower end of the side wall of the disk 8, A small amount of vapor is discharged through the through hole 11 of the disk 8 through the groove 10 of the cylinder 7 to the canister 5 do.

연료 탱크(1) 내부의 증기압이 더욱 증가하게 되면, 디스크(8)는 상부로 다시 이동하게 되며, 디스크(8)의 상부 관통 홀(11)과 실린더(7)의 상부 홈(10)이 대응되어 다량의 유증기를 케니스터(5)로 배출하게 된다.When the vapor pressure inside the fuel tank 1 further increases, the disk 8 moves back to the upper part and the upper through hole 11 of the disk 8 and the upper groove 10 of the cylinder 7 correspond to each other So that a large amount of vapor is discharged to the canister 5.

연료 공급이 완료 되면 연료 탱크(1) 내부의 증기압은 떨어지게 되고 다단 압력 밸브(6)의 디스크(8)는 스프링(9)의 팽창력에 의해 하부로 이동하게 된다.When the fuel supply is completed, the vapor pressure inside the fuel tank 1 falls and the disk 8 of the multi-stage pressure valve 6 is moved downward by the expansion force of the spring 9.

이상에서 살펴 본 바와 같이 본 발명은 연료 탱크의 상부에 다단 압력 밸브를 설치하여 연료 주입시에 연료 탱크의 내부 증기압에 대응되게 함으로서, 연료 탱크의 외부 구조를 간편하게 하며, 연료 탱크의 외부 구성품의 제작에 소요 되는 원가를 절감할 수 있도록 한 것이다.As described above, according to the present invention, a multi-stage pressure valve is provided on the upper part of the fuel tank to correspond to the internal vapor pressure of the fuel tank at the time of fuel injection, thereby simplifying the external structure of the fuel tank, To reduce the cost of the system.

Claims (1)

연료 탱크의 측면에는 연료 주입용 파이프를 결합하고, 상기 연료 탱크의 상부에는 내부 및 하부에 공간을 형성하고 측벽에 다단으로 관통된 홀을 형성한 디스크를 내측에 결합하고 측벽에 케니스터와 연결된 통로를 형성하며 내벽에 다단의 홈을 형성한 실린더와 실린더의 상부에 삽입되어 디스크의 상승시 디스크에 반발력을 제공하는 스프링을 설치한 다단 압력 밸브를 결합하여 구성한 것을 특징으로 하는 자동차의 연료 탱크 다단 압력 밸브.A fuel injecting pipe is coupled to a side surface of the fuel tank, a disk having a space formed therein and a lower portion at the upper portion of the fuel tank, and a hole formed at a multi-stage through the side wall is coupled to the inside, And a multi-stage pressure valve which is inserted into an upper portion of the cylinder and has a spring for providing a repulsive force to the disk when the disk is lifted. valve.
KR1019960038094A 1996-09-03 1996-09-03 Multistage pressure valve of fuel tank KR100252239B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960038094A KR100252239B1 (en) 1996-09-03 1996-09-03 Multistage pressure valve of fuel tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960038094A KR100252239B1 (en) 1996-09-03 1996-09-03 Multistage pressure valve of fuel tank

Publications (2)

Publication Number Publication Date
KR19980019849A KR19980019849A (en) 1998-06-25
KR100252239B1 true KR100252239B1 (en) 2000-05-01

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