KR19980022766A - Fuel circulation system of car - Google Patents

Fuel circulation system of car Download PDF

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Publication number
KR19980022766A
KR19980022766A KR1019960042050A KR19960042050A KR19980022766A KR 19980022766 A KR19980022766 A KR 19980022766A KR 1019960042050 A KR1019960042050 A KR 1019960042050A KR 19960042050 A KR19960042050 A KR 19960042050A KR 19980022766 A KR19980022766 A KR 19980022766A
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KR
South Korea
Prior art keywords
fuel
circulation system
tank
fuel tank
pump
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KR1019960042050A
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Korean (ko)
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KR0176360B1 (en
Inventor
김유정
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양재신
대우자동차 주식회사
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Priority to KR1019960042050A priority Critical patent/KR0176360B1/en
Publication of KR19980022766A publication Critical patent/KR19980022766A/en
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Publication of KR0176360B1 publication Critical patent/KR0176360B1/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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

본 발명은 자동차의 연료 순환 시스템에 관한 것으로, 더 상세히는 연소되지 않고 순환되는 연료를 연료탱크에 저장된 연료와 혼합되지 않고 연료펌프에 의하여 곧바로 재순환 할 수 있도록 한 자동차의 연료 순환 시스템에 관한 것이다.The present invention relates to a fuel circulation system of a motor vehicle, and more particularly, to a fuel circulation system of a motor vehicle capable of directly recycling a fuel that is not burned and circulated without being mixed with fuel stored in a fuel tank by a fuel pump.

본 발명에 따른 자동차의 연료 순환 시스템은 연료를 저장하는 연료탱크(100), 연료탱크(100)의 연료를 퓨얼레일(300)에 공급하는 연료펌프(200), 공급된 연료를 인젝터로 연소실에 분사하는 퓨얼레일(300), 연료가 순환되는 통로인 공급라인(400) 및 회수라인(500)을 포함하는 것에 있어서, 양쪽에 각각 1차측(610)과 2차측(620)을 가지며 목부위에 흡출파이프(630)를 가지는 벤튜리튜브(600)를 구비하여, 상기 1차측(610)은 회수라인(500)에 연결하고 상기 2차측(620)은 연료펌프(200)의 흡입측에 연결하며 상기 흡출파이프(630)는 연료탱크(100)의 바닥쪽으로 지향시킨 것에 그 특징이 있다.The fuel circulation system of an automobile according to the present invention includes a fuel tank 100 for storing fuel, a fuel pump 200 for supplying fuel from the fuel tank 100 to the fuel rail 300, and a combustion chamber with the supplied fuel as an injector. Including a fuel rail 300, a supply line 400 and a recovery line 500 which is a passage through which the fuel is circulated, each having a primary side 610 and a secondary side 620, respectively, The venturi tube 600 having the suction pipe 630 is provided at the site, and the primary side 610 is connected to the recovery line 500 and the secondary side 620 is connected to the suction side of the fuel pump 200. The suction pipe 630 is characterized in that directed to the bottom of the fuel tank 100.

Description

자동차의 연료 순환 시스템Fuel circulation system of car

본 발명은 자동차의 연료 순환 시스템에 관한 것으로, 더 상세히는 연소되지 않고 순환되는 연료를 연료탱크에 저장된 연료와 혼합되지 않고 연료펌프에 의하여 곧바로 재순환 할 수 있도록 한 자동차의 연료 순환 시스템에 관한 것이다.The present invention relates to a fuel circulation system of a motor vehicle, and more particularly, to a fuel circulation system of a motor vehicle capable of directly recycling a fuel that is not burned and circulated without being mixed with fuel stored in a fuel tank by a fuel pump.

도 1 은 종래의 자동차의 연료 순환 시스템의 구성도이다.1 is a configuration diagram of a fuel circulation system of a conventional vehicle.

도 1 에 도시한 바와같이, 일반적인 자동차의 연료 순환 시스템은, 연료를 저장하는 연료탱크(10), 연료탱크(10)의 연료를 퓨얼레일(30)에 공급하는 연료펌프(20), 공급된 연료를 인젝터로 연소실에 분사하는 퓨얼레일(30), 회수된 연료를 연료탱크(10)로 다시 저장할 수 있도록 연료탱크(10)내에 설치된 리테이너(40), 연료가 순환되는 통로인 공급라인(50) 및 회수라인(60)로 구성되어 있다.As shown in FIG. 1, the fuel circulation system of a general vehicle includes a fuel tank 10 storing fuel and a fuel pump 20 supplying fuel from the fuel tank 10 to the fuel rail 30. Fuel rail 30 for injecting the fuel into the combustion chamber with an injector, a retainer 40 installed in the fuel tank 10 to store the recovered fuel back to the fuel tank 10, a supply line that is a passage through which the fuel is circulated It consists of 50 and the recovery line 60.

이러한 종래의 연료 순환 시스템은 연료가 회수라인(60)을 통하여 리테이너(40)에 들어간 다음, 연료펌프(20)에 의하여 공급라인(50)로 들어가 재 사용할 수 있도록 하고 있다.This conventional fuel circulation system allows the fuel to enter the retainer 40 through the recovery line 60 and then enter the supply line 50 by the fuel pump 20 to be reused.

이러한 종래의 연료 순환 시스템은 리테이너(40)로 회수되었을 때 연료의 출렁거림으로 인하여 리테이너(40) 밖으로 흘러 넘쳐 연료탱크(10)에 저장된 연료와 혼합되기도 한다. 그런데, 회수된 연료는 엔진에 의하여 온도가 상승되어 있으므로 전반적으로 연료탱크(10) 내의 온도를 상승시키게 된다. 그리하여 연료탱크(10) 내에서 증발가스가 발생되고 연료탱크(10)내의 압력이 증가되고연료가 외부로 샐 우려도 있었다.Such a conventional fuel circulation system may flow out of the retainer 40 when mixed with the fuel stored in the fuel tank 10 due to the slump of the fuel when it is recovered to the retainer 40. However, since the temperature of the recovered fuel is raised by the engine, the temperature in the fuel tank 10 is generally increased. Thus, there was a fear that the evaporated gas is generated in the fuel tank 10, the pressure in the fuel tank 10 is increased, and the fuel leaks to the outside.

이러한 점을 감안한 본 발명은 회수된 연료가 연료탱크에 저장된 연료와 혼합되지 않고 연료펌프를 에 의하여 재 순환되도록 함으로써 연료탱크 내의 온도상승으로 인한 연료탱크에서의 증발가스 발생과 압력증가 현상을 방지하고 연료탱크에 저장된 연료가 외부로 새는 것을 방지할 수 있도록 하는데 있다.In view of this, the present invention allows the recovered fuel to be recycled by the fuel pump without mixing with the fuel stored in the fuel tank, thereby preventing evaporation gas generation and pressure increase in the fuel tank due to temperature rise in the fuel tank. This is to prevent the fuel stored in the fuel tank from leaking to the outside.

도 1 은 종래의 자동차의 연료 순환 시스템의 구성도1 is a configuration diagram of a fuel circulation system of a conventional vehicle

도 2 는 본 발명에 따른 자동차의 연료 순환 시스템의 구성도2 is a block diagram of a fuel circulation system of a vehicle according to the present invention;

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

100. 연료탱크 200. 연료펌프100. Fuel tank 200. Fuel pump

300. 퓨얼레일 400. 공급라인300. Fuel rail 400. Supply line

500. 회수라인 600. 벤튜리튜브500. Recovery Line 600. Venturi Tube

610. 1차측 620. 2차측610. Primary side 620. Secondary side

630. 흡출측파이프630. Suction pipe

본 발명에 따른 자동차의 연료 순환 시스템은 연료를 저장하는 연료탱크(100), 연료탱크(100)의 연료를 퓨얼레일(300)에 공급하는 연료펌프(200), 공급된 연료를 인젝터로 연소실에 분사하는 퓨얼레일(300), 연료가 순환되는 통로인 공급라인(400) 및 회수라인(500)을 포함하는 것에 있어서,The fuel circulation system of an automobile according to the present invention includes a fuel tank 100 for storing fuel, a fuel pump 200 for supplying fuel from the fuel tank 100 to the fuel rail 300, and a combustion chamber with the supplied fuel as an injector. In the fuel rail 300, which includes a supply line 400 and a recovery line 500 which is a passage through which fuel is circulated,

양쪽에 각각 1차측(610)과 2차측(620)을 가지며 목부위에 흡출파이프(630)를 가지는 벤튜리튜브(600)를 구비하여, 상기 1차측(610)은 회수라인(500)에 연결하고 상기 2차측(620)은 연료펌프(200)의 흡입측에 연결하며 상기 흡출파이프(630)는 연료탱크(100)의 바닥쪽으로 지향시킨 것에 그 특징이 있다.A venturi tube 600 having a primary side 610 and a secondary side 620 on each side and a suction pipe 630 on the neck is provided, and the primary side 610 is connected to the recovery line 500. The secondary side 620 is connected to the suction side of the fuel pump 200, the suction pipe 630 is characterized in that directed to the bottom of the fuel tank 100.

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

도 2 는 본 발명에 따른 자동차의 연료 순환 시스템의 구성도이다.2 is a block diagram of a fuel circulation system of a vehicle according to the present invention.

도 2 에 도시한 바와같이, 연료펌프(200)와 벤튜리튜브(600)를 직결시켜 연료탱크(100) 내부에 설치하며, 공급라인(400)은 연료펌프(200)와 퓨얼레일(300)을 연결하며, 회수라인(500)은 퓨얼레일(300)과 벤튜리튜브(600)를 연결한다. 이때 벤튜리튜브(600)는 1차측(610)을 회수라인(500)에 연결하고 2차측(620)을 연료펌프(200)에 연결하고 흡출파이프(630)는 연료탱크(100)의 바닥을 향하도록 함으로써, 벤튜리튜브(600)를 통하여 연료탱크(100)에 저장된 연료와 함께 회수라인(500)을 통하여 회수된 연료가 연료펌프(200)에 의하여 곧바로 재순환 될 수 있도록 한다.As shown in FIG. 2, the fuel pump 200 and the venturi tube 600 are directly connected to each other and installed in the fuel tank 100, and the supply line 400 includes the fuel pump 200 and the fuel rail 300. ) And the recovery line 500 connects the fuel rail 300 and the venturi tube 600. At this time, the venturi tube 600 connects the primary side 610 to the recovery line 500, the secondary side 620 to the fuel pump 200, and the suction pipe 630 connects the bottom of the fuel tank 100. By directing, the fuel recovered through the recovery line 500 together with the fuel stored in the fuel tank 100 through the venturi tube 600 to be immediately recycled by the fuel pump 200.

이러한 구성으로 된 본 발명은, 회수라인(500)을 통하여 회수되는 연료는 연료탱크(100)에 저장된 연료와 혼합되지 않고 곧바로 벤튜리튜브(600)를 거쳐 연료펌프(200)에 의하여 공급라인(400)을 통하여 퓨얼레일(300)에 공급된다. 이와 동시에, 연료펌프(200)의 작동시 압력차에 의하여 연료탱크(100)에 저장된 연료가 벤튜리튜브(600)를 통해 보충되어 공급라인(400)을 통하여 퓨얼레일(300)에 공급되는 시스템이다.According to the present invention having such a configuration, the fuel recovered through the recovery line 500 is not mixed with the fuel stored in the fuel tank 100, but directly through the venturi tube 600, by the fuel pump 200. 400 is supplied to the fuel rail 300 through. At the same time, fuel stored in the fuel tank 100 is replenished through the venturi tube 600 due to the pressure difference during operation of the fuel pump 200 and supplied to the fuel rail 300 through the supply line 400. System.

이와같이, 퓨얼레일(300)을 통과하면서 엔진에 의하여 상대적으로 온도가 높아진 연료가 순환할 때 연료As such, when the fuel having a relatively high temperature is circulated by the engine while passing through the fuel rail 300, the fuel is circulated.

탱크에 저장된 연료와 혼합되지 않고 곧바로 재순환함으로 연료탱크(100) 내의 온도상승을 둔화시키게 된다.By recycling immediately without mixing with the fuel stored in the tank, the temperature rise in the fuel tank 100 is slowed down.

상술한 바와같이, 본 발명은 연료의 순환시 순환되는 연료가 탱크에 저장된 연료와 혼합되지 않고 곧바로 재순환할 수 있도록 한 것으로, 연료탱크(100) 내의 온도상승을 둔화시키므로 연료탱크(100) 내에서 증발가스의 발생을 억제하고 연료탱크(100)내의 압력 증가를 방지하며 연료가 외부로 새는 현상도 방지할 수 있다.As described above, the present invention allows the fuel circulated at the time of circulating the fuel to be immediately recycled without being mixed with the fuel stored in the tank, and slows the temperature rise in the fuel tank 100 so that the fuel tank 100 can be recycled. It is possible to suppress the generation of boil-off gas, to prevent an increase in pressure in the fuel tank 100, and to prevent the leakage of fuel to the outside.

Claims (1)

연료를 저장하는 연료탱크(100), 연료탱크(100)의 연료를 퓨얼레일(300)에 공급하는 연료펌프(200), 공급된 연료를 인젝터로 연소실에 분사하는 퓨얼레일(300), 연료가 순환되는 통로인 공급라인(400) 및 회수라인(500)을 포함하는 것에 있어서,A fuel tank 100 for storing fuel, a fuel pump 200 for supplying fuel from the fuel tank 100 to the fuel rail 300, a fuel rail 300 for injecting the supplied fuel into the combustion chamber with an injector, In including the supply line 400 and the recovery line 500 which is a passage through which the fuel is circulated, 양쪽에 각각 1차측(610)과 2차측(620)을 가지며 목부위에 흡출파이프(630)를 가지는 벤튜리튜브(600)를 구비하여, 상기 1차측(610)은 회수라인(500)에 연결하고 상기 2차측(620)은 연료펌프(200)의 흡입측에 연결하며 상기 흡출파이프(630)는 연료탱크(100)의 바닥쪽으로 지향시킨 것을 특징으로 하는 자동차의 연료 순환 시스템A venturi tube 600 having a primary side 610 and a secondary side 620 on each side and a suction pipe 630 on the neck is provided, and the primary side 610 is connected to the recovery line 500. The secondary side 620 is connected to the intake side of the fuel pump 200 and the suction pipe 630 is directed to the bottom of the fuel tank 100, the fuel circulation system of the vehicle
KR1019960042050A 1996-09-24 1996-09-24 Fuel circulating system of an automobile KR0176360B1 (en)

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KR0176360B1 KR0176360B1 (en) 1999-03-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100412736B1 (en) * 2001-12-13 2003-12-31 현대자동차주식회사 Oil drain/blow by system of engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100412736B1 (en) * 2001-12-13 2003-12-31 현대자동차주식회사 Oil drain/blow by system of engine

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