KR100768599B1 - Fuel supply unit - Google Patents
Fuel supply unit Download PDFInfo
- Publication number
- KR100768599B1 KR100768599B1 KR1020037002674A KR20037002674A KR100768599B1 KR 100768599 B1 KR100768599 B1 KR 100768599B1 KR 1020037002674 A KR1020037002674 A KR 1020037002674A KR 20037002674 A KR20037002674 A KR 20037002674A KR 100768599 B1 KR100768599 B1 KR 100768599B1
- Authority
- KR
- South Korea
- Prior art keywords
- supply unit
- fuel
- fuel supply
- conduit
- bleed valve
- Prior art date
Links
Classifications
-
- 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
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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
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
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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
- F02M37/20—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 characterised by means for preventing vapour lock
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Fuel-Injection Apparatus (AREA)
- Feeding And Controlling Fuel (AREA)
- Details Of Reciprocating Pumps (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Fuel Cell (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
본 발명은, 흡입 영역으로부터 송출 영역 내로 연료를 이송시킬 목적으로 제공되는 연료 펌프를 구비하며, 상기 송출 영역을 시일링하거나 또는 상기 송출 영역을 주위 환경에 연결시키기 위한 블리드 밸브(bleed valve)를 구비하는, 연료 공급 유닛에 관한 것이다.The present invention includes a fuel pump provided for the purpose of transferring fuel from an intake region to a delivery region, and has a bleed valve for sealing the delivery region or connecting the delivery region to an ambient environment. It relates to a fuel supply unit.
이러한 형태의 연료 공급 유닛은 현대의 자동차에서 널리 사용 중에 있으며, 실제로 공지되어 있다. 일반적으로 연료 공급 유닛은, 하우징 내에 배치되고 전기 모터를 구비하는 연료 펌프를 구비하며, 자동차 연료 탱크 내의 스플래시 용기(splash pot) 내에 장착된다. 연료 공급 유닛이 설치된 상태에서, 연료 펌프 및 흡입 영역은 하우징의 하단부에 위치된다. 블리드 밸브(bleed valve)와, 자동차의 내연 기관으로 이어지는 유동 도관(flow line)을 위한 연결 피스를 구비하는 송출 영역은 하우징의 상부 영역에 배치된다. 이송되는 연료는 일반적으로 전기 모터를 통하여 흐른다.This type of fuel supply unit is widely used in modern automobiles and is actually known. The fuel supply unit generally includes a fuel pump disposed in the housing and having an electric motor, and mounted in a splash pot in an automobile fuel tank. With the fuel supply unit installed, the fuel pump and the suction area are located at the bottom of the housing. A delivery area having a bleed valve and a connecting piece for a flow line leading to the internal combustion engine of the motor vehicle is arranged in the upper area of the housing. The conveyed fuel generally flows through an electric motor.
공지된 연료 공급 유닛의 단점은 연료 펌프가 장기간 작동되지 않은 후에 스플래시 용기가 사실상 비어 있는 경우에, 공기가 블리드 밸브를 통하여 하우징 내로 유입될 수 있다는 점이다. 이렇게 되면, 연료 펌프가 작동하기 시작할 때, 우선 이러한 공기를 이송되는 연료에 의해 블리드 밸브를 통하여 후퇴시켜 배기시켜야 한다. 이는 압력 형성시 시간 지연을 초래하게 되며, 공기 및 연료의 혼합을 초래하게 된다.A disadvantage of the known fuel supply unit is that air can enter the housing through the bleed valve if the splash container is substantially empty after the fuel pump has not been operated for a long time. In this case, when the fuel pump starts to operate, this air must first be retracted through the bleed valve by the conveyed fuel and exhausted. This results in a time delay in pressure buildup and results in a mixture of air and fuel.
도 1은 자동차 연료 탱크의 기부 영역을 도시한 도면이다.1 is a diagram illustrating a base region of an automobile fuel tank.
본 발명은 공기가 연료 공급 유닛의 하우징 내로 유입되는 것을 방지하는 데 목적을 두고 있다.The present invention aims to prevent air from entering the housing of the fuel supply unit.
이러한 목적은, 본 발명에 따르면, 주위 환경으로 향하는 블리드 밸브의 단부가 연료 공급 유닛의 설치 상태에서 항상 연료로 채워지는 영역에 연결됨으로써 달성된다.This object is achieved according to the invention by connecting the end of the bleed valve towards the ambient environment to an area which is always filled with fuel in the installation state of the fuel supply unit.
이러한 배치에 의하면, 어떠한 공기라도 블리드 밸브를 통하여 본 발명에 따른 연료 공급 유닛의 하우징 내로 유입되는 것이 불가능하게 된다. 따라서, 하우징은 연료 펌프가 장기간 작동되지 않은 후라 하더라도 연료로 가득 채워지며, 연료 펌프가 작동되기 시작할 때 공기를 배기시킬 필요가 없다. 최초의 충진 동안 하우징 내에 존재하는 공기와, 연료로부터 방출되는 가스로 인해 생성되는 기포는 블리드 밸브를 통하여 아무런 문제없이 하우징으로부터 배출될 수 있다.This arrangement makes it impossible for any air to enter the housing of the fuel supply unit according to the invention via the bleed valve. Thus, the housing is filled with fuel even after the fuel pump has not been operated for a long time, and there is no need to exhaust air when the fuel pump starts to operate. Air present in the housing during the initial filling and bubbles generated by the gas released from the fuel can be discharged from the housing through the bleed valve without any problem.
본 발명에 따른 연료 공급 유닛은 도관이 블리드 밸브의 주위 환경측 영역에 연결되는 경우에, 그리고 도관이 흡입 영역에 근접하게 연장되는 경우에 특히 간단하게 형성된다. 결과적으로 도관의 자유 단부는 스플래시 용기가 실제로 비워지는 경우라 하더라도 항상 연료 내에 위치된다.The fuel supply unit according to the invention is particularly simple when the conduit is connected to the surrounding environmental side region of the bleed valve and when the conduit extends close to the suction region. As a result, the free end of the conduit is always located in the fuel, even if the splash vessel is actually emptied.
일 실시예에 의하면, 도관은 상당히 큰 횡단면을 가질 수 있으며, 최초 충진 공정 동안에 배출되어야 할 공기를 저장할 수 있다. 하지만, 도관의 체적이 송출 영역의 체적에 비해 상당히 작다면, 도관 내에 존재하는 공기가 본 발명에 따른 연료 공급 유닛의 하우징 내로 유입되는 현상이 회피될 수 있다.In one embodiment, the conduit can have a fairly large cross section and can store air to be discharged during the initial filling process. However, if the volume of the conduit is considerably smaller than the volume of the delivery area, the phenomenon that the air present in the conduit enters the housing of the fuel supply unit according to the present invention can be avoided.
본 발명의 또 다른 바람직한 실시예에 따르면, 도관이 블리드 밸브에 근접한 흡입 영역으로 이어지는 각형부(angled portion)를 구비하는 경우에, 도관의 저장 체적을 더욱 감소시킬 수 있다. 이에 의하면, 도관의 길이가 상당히 짧아질 수 있다.According to another preferred embodiment of the present invention, when the conduit has an angled portion leading to the suction region proximate the bleed valve, the storage volume of the conduit can be further reduced. According to this, the length of the conduit can be significantly shortened.
연료 공급 유닛이 스플래시 용기 내에 장착될 때, 도관의 자유 단부가 스플래시 용기의 저면으로부터 소정의 거리에 있는 경우에, 블리드 밸브를 통하여 본 발명에 따른 연료 공급 유닛의 하우징으로부터 배출되는 공기에 대한 어떠한 장애물도 쉽게 방지할 수 있게 된다.When the fuel supply unit is mounted in the splash container, any obstacle to the air exiting the housing of the fuel supply unit according to the invention via the bleed valve, when the free end of the conduit is at a distance from the bottom of the splash container. Can be easily prevented.
본 발명에서는 다수의 실시예들이 가능하다. 본 발명의 기본 원리를 더욱 명료하게 하기 위해서, 이러한 실시예들 중 일 실시예를 도면에 도시하여 이하에서 설명한다.Many embodiments are possible in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the basic principles of the present invention more clear, one of these embodiments is illustrated in the drawings and described below.
도 1은 자동차 연료 탱크의 기부 영역을 도시하고 있다. 2단 연료 펌프(3)를 구비한 연료 공급 유닛(2)을 구비하는 스플래시 용기(1)가 연료 탱크 내에 조립된다. 연료 펌프(3)는, 연료 탱크로부터 스플래시 용기(1) 내로 연료를 이송하기 위한 예비 스테이지(stage)(4)와, 스플래시 용기(1)로부터 연료 공급 유닛(2)의 하우징(6)의 상부에 배치된 송출 영역(7) 내로 연료를 이송하기 위한 주 스테이지(5)를 구비한다. 명료함을 위하여, 연료의 흐름을 도면에 화살표로 도시하였다. 자동차의 내연 기관으로 이어지는 유동 도관(미도시)을 위한 연결 피스(8)가 송출 영역(7)을 구비한 하우징(6) 부분에 배치된다. 또한, 하우징(6)은 블리드 밸브(9)를 구비한다. 이러한 블리드 밸브(9)는 송출 영역(7)을 주위 환경에 연결시켜, 기포가 송출 영역(7)으로부터 배출되도록 한다. 송출 영역(7)이 완전히 연료로 채워진 경우에, 블리드 밸브(9)는 폐쇄된다. 스플래시 용기(1)의 저면 바로 위로 이어지며 따라서 연료로 항상 채워진 영역으로 이어지는 도관(10)은 블리드 밸브(9)의 주위 환경측 단부에 연결된다.1 illustrates a base region of an automobile fuel tank. A splash container 1 having a fuel supply unit 2 with a two stage fuel pump 3 is assembled in a fuel tank. The fuel pump 3 has a preliminary stage 4 for transferring fuel from the fuel tank into the splash container 1 and the upper part of the housing 6 of the fuel supply unit 2 from the splash container 1. It is provided with a main stage 5 for transferring fuel into the delivery area 7 arrange | positioned at. For clarity, the flow of fuel is shown by arrows in the figure. A connecting piece 8 for a flow conduit (not shown) leading to the internal combustion engine of the motor vehicle is arranged in the part of the housing 6 with the delivery area 7. The housing 6 also has a bleed valve 9. This bleed valve 9 connects the delivery area 7 to the surrounding environment, so that bubbles are discharged from the delivery area 7. When the delivery area 7 is completely filled with fuel, the bleed valve 9 is closed. A conduit 10 which extends directly above the bottom of the splash vessel 1 and thus into an area always filled with fuel is connected to the surrounding environmental end of the bleed valve 9.
송출 영역(7)이 배기되는 경우에, 가스는 블리드 밸브(9) 및 도관(10)을 통하여 송출 영역(7)으로부터 배출된다. 자동차 및 연료 공급 유닛(2)이 정지 중인 경우에, 도관(10)이 연료를 포함하는 영역까지 연장됨으로써, 공기가 블리드 밸브(9)에서의 누출로 인해 송출 영역(7)으로 유입되는 현상을 방지할 수 있게 된다. 결과적으로, 연료 공급 유닛(2)이 다시 작동되기 시작하는 경우에, 압력이 상당히 신속하게 형성될 수 있게 된다.In the case where the delivery region 7 is exhausted, gas is discharged from the delivery region 7 via the bleed valve 9 and the conduit 10. When the vehicle and fuel supply unit 2 are stationary, the conduit 10 extends to the region containing the fuel, whereby air is introduced into the delivery region 7 due to leakage at the bleed valve 9. It can be prevented. As a result, when the fuel supply unit 2 starts to operate again, the pressure can be formed quite rapidly.
따라서, 상술한 바와 같은 본 발명에 따른 연료 공급 유닛은 주위 환경으로 향하는 블리드 밸브의 단부가 연료 공급 유닛의 설치 상태에서 항상 연료로 채워지는 영역에 연결됨으로써, 연료 공급 유닛의 하우징 내로 공기가 유입되는 현상을 방지하는 탁월한 효과가 있다.Therefore, the fuel supply unit according to the present invention as described above is connected to an area where the end of the bleed valve to the surrounding environment is always filled with fuel in the installation state of the fuel supply unit, whereby air is introduced into the housing of the fuel supply unit. It has an excellent effect of preventing the phenomenon.
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10044609A DE10044609B4 (en) | 2000-09-09 | 2000-09-09 | Fuel delivery unit |
DE10044609.4 | 2000-09-09 | ||
PCT/DE2001/003132 WO2002020973A1 (en) | 2000-09-09 | 2001-08-16 | Fuel supply unit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030036726A KR20030036726A (en) | 2003-05-09 |
KR100768599B1 true KR100768599B1 (en) | 2007-10-18 |
Family
ID=7655618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020037002674A KR100768599B1 (en) | 2000-09-09 | 2001-08-16 | Fuel supply unit |
Country Status (11)
Country | Link |
---|---|
US (1) | US20040013537A1 (en) |
EP (1) | EP1315898B1 (en) |
JP (1) | JP2004508491A (en) |
KR (1) | KR100768599B1 (en) |
CN (1) | CN100385105C (en) |
AT (1) | ATE268866T1 (en) |
AU (1) | AU2001283801A1 (en) |
BR (1) | BR0113733A (en) |
DE (2) | DE10044609B4 (en) |
ES (1) | ES2223000T3 (en) |
WO (1) | WO2002020973A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060093772A1 (en) * | 2004-10-27 | 2006-05-04 | Fish Robert B Jr | Multilayered pipes comprising hydrolysis resistant polyamides |
KR101271377B1 (en) | 2007-08-10 | 2013-06-07 | 현대자동차주식회사 | Fuel Pump for LPI Vehicle |
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JPH1061518A (en) * | 1996-05-08 | 1998-03-03 | Robert Bosch Gmbh | Fuel feed unit for force feeding fuel from fuel reservoir tank to internal combustion engine |
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DE3540260C2 (en) * | 1985-11-13 | 1995-01-05 | Bosch Gmbh Robert | Unit for delivering fuel from a storage tank to an internal combustion engine |
US4844704A (en) * | 1986-04-03 | 1989-07-04 | Honda Giken Kogyo Kabushiki Kaisha | Fuel pump assembly |
DE3631982C1 (en) * | 1986-09-19 | 1988-02-04 | Hans Ing Kern | Dosing pump |
JPH0341085Y2 (en) * | 1987-03-17 | 1991-08-29 | ||
DE3827489C1 (en) * | 1988-08-12 | 1989-10-12 | Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De | |
JPH0755326Y2 (en) * | 1989-11-18 | 1995-12-20 | 堀江金属工業株式会社 | Fuel pump unit |
JPH0732935Y2 (en) * | 1990-04-25 | 1995-07-31 | 株式会社ユニシアジェックス | Fuel pump |
JPH07259675A (en) * | 1994-03-22 | 1995-10-09 | Nissan Motor Co Ltd | Turning tank vessel structure for fuel tank |
DE19712096C1 (en) * | 1997-03-22 | 1998-04-02 | Lang Apparatebau Gmbh | Dosing pump for conveying fluids through suction valve |
WO2000001941A1 (en) * | 1998-07-02 | 2000-01-13 | Mitsubishi Denki Kabushiki Kaisha | Vehicle fuel supplying apparatus |
US6082321A (en) * | 1998-07-29 | 2000-07-04 | Borgwarner Inc. | Method for controlling output pressure of an engine oil pump |
DE19834653C1 (en) * | 1998-07-31 | 1999-12-16 | Bosch Gmbh Robert | Modular fuel supply system for IC engines in motor vehicles |
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DE19901032A1 (en) * | 1999-01-14 | 2000-07-20 | Pierburg Ag | Electric fuel pump |
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2000
- 2000-09-09 DE DE10044609A patent/DE10044609B4/en not_active Revoked
-
2001
- 2001-08-16 ES ES01962643T patent/ES2223000T3/en not_active Expired - Lifetime
- 2001-08-16 JP JP2002525360A patent/JP2004508491A/en active Pending
- 2001-08-16 BR BR0113733-6A patent/BR0113733A/en not_active Application Discontinuation
- 2001-08-16 KR KR1020037002674A patent/KR100768599B1/en not_active IP Right Cessation
- 2001-08-16 US US10/363,787 patent/US20040013537A1/en not_active Abandoned
- 2001-08-16 EP EP01962643A patent/EP1315898B1/en not_active Revoked
- 2001-08-16 AT AT01962643T patent/ATE268866T1/en not_active IP Right Cessation
- 2001-08-16 AU AU2001283801A patent/AU2001283801A1/en not_active Abandoned
- 2001-08-16 WO PCT/DE2001/003132 patent/WO2002020973A1/en active IP Right Grant
- 2001-08-16 CN CNB018152872A patent/CN100385105C/en not_active Expired - Fee Related
- 2001-08-16 DE DE50102542T patent/DE50102542D1/en not_active Revoked
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0102063A2 (en) * | 1982-08-27 | 1984-03-07 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Weft inserting device for a jet loom and loom including the device |
DE4038875A1 (en) * | 1990-08-30 | 1992-03-12 | Vdo Schindling | Fuel pump with valve for motor vehicle IC engine - incorporates vent for airexpulsion from engine space into which fuel enters at commencement ofstroke |
JPH1061518A (en) * | 1996-05-08 | 1998-03-03 | Robert Bosch Gmbh | Fuel feed unit for force feeding fuel from fuel reservoir tank to internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE10044609A1 (en) | 2002-06-27 |
WO2002020973A1 (en) | 2002-03-14 |
KR20030036726A (en) | 2003-05-09 |
DE50102542D1 (en) | 2004-07-15 |
EP1315898A1 (en) | 2003-06-04 |
EP1315898B1 (en) | 2004-06-09 |
CN1623035A (en) | 2005-06-01 |
AU2001283801A1 (en) | 2002-03-22 |
JP2004508491A (en) | 2004-03-18 |
ES2223000T3 (en) | 2005-02-16 |
BR0113733A (en) | 2003-07-29 |
ATE268866T1 (en) | 2004-06-15 |
US20040013537A1 (en) | 2004-01-22 |
CN100385105C (en) | 2008-04-30 |
DE10044609B4 (en) | 2004-11-04 |
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