US20060285979A1 - Feed unit for feeding fuel out of a fuel tank - Google Patents

Feed unit for feeding fuel out of a fuel tank Download PDF

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Publication number
US20060285979A1
US20060285979A1 US10/529,599 US52959905A US2006285979A1 US 20060285979 A1 US20060285979 A1 US 20060285979A1 US 52959905 A US52959905 A US 52959905A US 2006285979 A1 US2006285979 A1 US 2006285979A1
Authority
US
United States
Prior art keywords
chamber
fuel
feed unit
baffle
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/529,599
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English (en)
Inventor
Bernd Rumpf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUMPF, BERND
Publication of US20060285979A1 publication Critical patent/US20060285979A1/en
Assigned to CONTINENTAL AUTOMOTIVE GMBH reassignment CONTINENTAL AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS AKTIENGESELLSCHAFT
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03105—Fuel tanks with supplementary interior tanks inside the fuel tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03111—Swirl pots

Definitions

  • the invention relates to a feed unit for feeding fuel out of a fuel tank of a motor vehicle, having a baffle which has a first chamber for collecting fuel, having a fuel pump for sucking up fuel and having a fuel-pump suction opening arranged in the vicinity of the bottom of the first chamber of the baffle.
  • the chamber of the baffle generally has a bottom valve and is filled with fuel via a suction jet pump driven by the fuel pump.
  • the baffle is arranged in a bottom region of the fuel tank, so that fuel can flow out of the fuel tank into the baffle via the bottom valve. The filling of the baffle via the suction jet pump ensures that, even if there is a very low fuel level in the fuel tank, the baffle is sufficiently filled with fuel.
  • the baffle When the fuel tank is empty, the baffle is also emptied, as a result of which the fuel-pump suction opening emerges out of the fuel. Before the fuel pump can feed fuel again, sufficient fuel has to be poured into the fuel tank, for example by means of a jerrycan, for fuel to penetrate into the baffle. Only when the fuel-pump suction opening is resubmerged into the fuel can the fuel pump feed fuel. However, a minimum quantity of fuel is required for this.
  • the invention is based on the problem of designing a feed unit of the type mentioned at the beginning in such a manner that, after the first chamber of the baffle is emptied, the fuel-pump suction opening is reliably covered with fuel.
  • a second chamber being connected to the first chamber via a valve, and by the valve being a throttle valve, with the volumetric flow of fuel that is restricted by the valve being smaller than the volumetric flow fed by the fuel pump.
  • This design makes it possible for the first chamber to be initially emptied, as in the case of the known feed unit, after the fuel tank has been emptied. Over a period of time which is dependent on the throttling action of the valve, fuel flows out of the second chamber into the first chamber and covers the fuel-pump suction opening. Feeding of the fuel pump is ensured by the invention. If, at the same time, a small quantity of fuel is put into the fuel tank, for example via the jerrycan, the feed unit according to the invention is capable of feeding the topped-up fuel.
  • the feed unit according to the invention has a particularly low outlay on installation if the second chamber is manufactured integrally with the baffle.
  • the second chamber could be arranged, for example, above the first chamber.
  • a filling of the second chamber can be ensured in a simple manner if the chambers are arranged at the same height.
  • the second chamber like the first chamber, can therefore be filled with fuel.
  • the feed unit according to the invention has a particularly low structural outlay if the valve is arranged in a common wall of the first chamber and of the second chamber.
  • the baffle turns out to be particularly compact if the second chamber is designed as an annular chamber surrounding the first chamber.
  • the feed unit according to the invention can be arranged in a simple manner even in particularly shallow and angled fuel tanks.
  • a reliable filling of the second chamber with fuel can be ensured in a simple manner if the second chamber is arranged within the baffle and the common wall between the first chamber and the second chamber is lower than an outer wall of the baffle. Fuel can thus flow from the first chamber into the second chamber.
  • the throttling of the fuel flowing from the second chamber into the first chamber requires a particularly low structural outlay if the valve is designed as an opening with a designated cross section.
  • the valve During the emptying of the first chamber, the valve has to throttle an over flow of fuel out of the second chamber into the first chamber, so that, when the fuel tank is empty, sufficient fuel remains in the second chamber.
  • sufficient throttling of the overflowing fuel can be achieved in a simple manner with customary volumes of known baffles if the valve throttles the volumetric flow, which flows from the second chamber into the first chamber, in such a manner that the level is equalized in three to five minutes after the fuel pump has stopped.
  • a sufficient fuel level in the first chamber after the fuel tank has been emptied can be reliably ensured if the second chamber has a volume of approximately 10-20% of the baffle volume.
  • FIG. 1 shows schematically a longitudinal section through a fuel tank with a feed unit according to the invention arranged therein
  • FIG. 2 shows the feed unit according to the invention from FIG. 1 after the fuel tank has been topped up with a small quantity of fuel.
  • FIG. 1 shows schematically a longitudinal section through a fuel tank 1 for a motor vehicle, having a feed unit 2 which is arranged in the bottom region and is intended for feeding fuel out of the fuel tank 1 to an internal combustion engine 3 of the motor vehicle.
  • the feed unit 2 has a baffle 4 with an electrically operated fuel pump 5 arranged therein.
  • a suction opening 6 of the fuel pump 5 is arranged in the bottom region of a first chamber 7 of the baffle 4 .
  • a forward flow line 8 leads from the fuel pump 5 to the internal combustion engine 3 .
  • a suction jet pump 9 is arranged in the bottom region and is supplied with fuel as the working fluid via a fuel line 10 branching off from the forward flow line 8 .
  • the suction jet pump 9 sucks up fuel via a bottom valve 11 arranged on the baffle 4 , and conveys the fuel into the first chamber 7 of the baffle 4 .
  • a wall 12 for separating off the first chamber 7 from a second chamber 13 is arranged in the baffle 4 .
  • the wall 12 has a valve 14 which is designed as a throttle valve and permits fuel to flow through into the first chamber 7 .
  • the wall 12 separating the chambers 7 , 13 from each other is lower than an outer wall 15 of the baffle 4 . This ensures that, during normal operation of the feed unit 2 , the second chamber 13 is at all times filled with fuel.
  • the internal combustion engine 3 is supplied with fuel and at the same time the baffle 4 is filled with fuel via the suction jet pump 9 .
  • the filling of the baffle 4 with fuel is ensured as long as the fuel level in the fuel tank 1 reaches as far as the bottom valve 11 . If the fuel level drops below the bottom valve 11 , the feed unit 2 supplies the internal combustion engine 3 with fuel until the first chamber 7 of the baffle 4 is empty, as illustrated in FIG. 1 .
  • the internal combustion engine 3 therefore does not obtain any fuel and the fuel pump stops.
  • a topping-up of the fuel tank 1 with fuel takes place generally with a very small quantity. This quantity is generally sufficient in order to enable the level in the fuel tank 1 to rise again as far as the bottom valve 11 .
  • the feed unit 2 can only suck up fuel again and the suction jet pump 9 can be supplied with fuel as the working fluid if the fuel level in the first chamber 7 is higher than the suction opening 6 of the feed unit 2 .
  • valve 14 which is designed as a throttle valve, slowly into the first chamber 7 , as illustrated in FIG. 2 .
  • the throttling action is configured in such a manner that the hydraulic equalizing operation lasts for three to five minutes.
  • the flowing of the fuel through into the first chamber 7 causes the suction opening 6 to again be situated below the fuel level.
  • the feed unit 2 can therefore supply the internal combustion engine 3 and the suction jet pump 9 again with fuel.
  • the throttling of the volumetric flow, which is guided into the first chamber 4 , by the valve 14 , which is designed as a throttle valve, is dimensioned in such a manner that the fuel flows more slowly into the first chamber 7 than the feed unit 2 feeds fuel to the internal combustion engine 3 .

Landscapes

  • 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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
US10/529,599 2003-12-05 2004-11-05 Feed unit for feeding fuel out of a fuel tank Abandoned US20060285979A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10356965A DE10356965A1 (de) 2003-12-05 2003-12-05 Fördereinheit zu Förderung von Kraftstoff aus einem Kraftstoffbehälter
DE10356965.0 2003-12-05
PCT/EP2004/052823 WO2005053988A1 (de) 2003-12-05 2004-11-05 Fördereinheit zur förderung von kraftstoff aus einem kraftstoffbehälter

Publications (1)

Publication Number Publication Date
US20060285979A1 true US20060285979A1 (en) 2006-12-21

Family

ID=34638411

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/529,599 Abandoned US20060285979A1 (en) 2003-12-05 2004-11-05 Feed unit for feeding fuel out of a fuel tank

Country Status (7)

Country Link
US (1) US20060285979A1 (ja)
EP (1) EP1565338B1 (ja)
JP (1) JP4065454B2 (ja)
CN (1) CN100429094C (ja)
DE (2) DE10356965A1 (ja)
ES (1) ES2270390T3 (ja)
WO (1) WO2005053988A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4914737B2 (ja) * 2007-02-14 2012-04-11 本田技研工業株式会社 エンジン用燃料供給装置
KR100972656B1 (ko) 2008-01-25 2010-07-27 삼성중공업 주식회사 잔유 연료 원활공급을 위한 액화가스운반선 화물창 바닥구조물
AT508043B1 (de) * 2009-03-23 2011-04-15 Alutech Gmbh Fahrzeugtank
DE102016220625A1 (de) * 2016-10-20 2018-04-26 Bayerische Motoren Werke Aktiengesellschaft Behälter für ein flüssiges Betriebsmittel eines Kraftfahrzeugs

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354521A (en) * 1979-04-06 1982-10-19 Ab Volvo Device in a fuel tank for motor vehicles
DE3605992C1 (en) * 1986-02-25 1987-04-09 Karlheinz Baumeister Tank arrangement for a motor vehicle
US4974570A (en) * 1989-05-05 1990-12-04 Carter Automotive Company, Inc. Fuel supply module
US5263458A (en) * 1991-10-31 1993-11-23 Honda Giken Kogyo Kabushiki Kaisha Fuel feeder for automotive engine
FR2698829A1 (fr) * 1992-12-03 1994-06-10 Peugeot Réservoir à carburant à deux cuves pour véhicule automobile.
US6002328A (en) * 1996-03-15 1999-12-14 Vdo Adolf Schindling Ag Tank display system and method for determining the remaining volume in a tank
US6230691B1 (en) * 2000-08-02 2001-05-15 Delphi Technologies, Inc. Secondary fuel pump assembly for a fuel tank
US6276342B1 (en) * 1998-08-10 2001-08-21 Mannesmann Vdo Ag Fuel supply system
US6424924B1 (en) * 1998-06-25 2002-07-23 Kautex Textron Gmbh & Co. Kg Method and device for determining the fuel reserve in a motor vehicle fuel system
KR20020084549A (ko) * 2001-05-03 2002-11-09 현대자동차주식회사 보조연료탱크가 장착된 차량의 경사길 주행시연료공급차단 방지장치
US6488476B2 (en) * 2000-06-03 2002-12-03 Mannesmann Vdo Ag Fuel feed unit
US20030062031A1 (en) * 2001-10-02 2003-04-03 Nissan Motor Co., Ltd. Fuel supply system with transfer pump and fuel supply method
US20030131829A1 (en) * 2001-12-13 2003-07-17 Bernd Herzog Fuel feed unit
US6606980B1 (en) * 1999-03-20 2003-08-19 Kautex Textron Gmbh & Co. Kg Fuel tank for a motor vehicle
US6640789B2 (en) * 2000-06-08 2003-11-04 Robert Bosch Gmbh Apparatus for pumping fuel from a tank to an internal combustion engine of a motor vehicle
US6810908B2 (en) * 2001-07-17 2004-11-02 Siemens Aktiengesellschaft Fuel tank for a motor vehicle
DE102004030911A1 (de) * 2004-06-25 2006-01-19 Mahle Filtersysteme Gmbh Tankentlüftungssystem und zugehöriges Betriebsverfahren

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328198C2 (de) * 1993-08-21 2001-09-06 Mannesmann Vdo Ag In einen Kraftstoffbehälter einzusetzende Kraftstoff-Entnahmeeinrichtung
DE4426685B4 (de) * 1993-08-25 2004-03-11 Volkswagen Ag Kraftstoffversorgung für eine Brennkraftmaschine mit einem zumindest zwei Teilbehälter bildenden Kraftstoffbehälter
FR2771972B1 (fr) * 1997-12-10 2000-02-25 Marwal Systems Dispositif de reserve pour un reservoir de carburant de vehicule automobile
DE19932356B4 (de) * 1998-08-10 2010-03-18 Continental Automotive Gmbh Kraftstoffversorgungsanlage
DE10117324A1 (de) * 2001-01-03 2002-08-08 Siemens Ag Einrichtung zur Sammlung von Kraftstoff

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354521A (en) * 1979-04-06 1982-10-19 Ab Volvo Device in a fuel tank for motor vehicles
DE3605992C1 (en) * 1986-02-25 1987-04-09 Karlheinz Baumeister Tank arrangement for a motor vehicle
US4974570A (en) * 1989-05-05 1990-12-04 Carter Automotive Company, Inc. Fuel supply module
US5263458A (en) * 1991-10-31 1993-11-23 Honda Giken Kogyo Kabushiki Kaisha Fuel feeder for automotive engine
FR2698829A1 (fr) * 1992-12-03 1994-06-10 Peugeot Réservoir à carburant à deux cuves pour véhicule automobile.
US6002328A (en) * 1996-03-15 1999-12-14 Vdo Adolf Schindling Ag Tank display system and method for determining the remaining volume in a tank
US6424924B1 (en) * 1998-06-25 2002-07-23 Kautex Textron Gmbh & Co. Kg Method and device for determining the fuel reserve in a motor vehicle fuel system
US6276342B1 (en) * 1998-08-10 2001-08-21 Mannesmann Vdo Ag Fuel supply system
US6606980B1 (en) * 1999-03-20 2003-08-19 Kautex Textron Gmbh & Co. Kg Fuel tank for a motor vehicle
US6488476B2 (en) * 2000-06-03 2002-12-03 Mannesmann Vdo Ag Fuel feed unit
US6640789B2 (en) * 2000-06-08 2003-11-04 Robert Bosch Gmbh Apparatus for pumping fuel from a tank to an internal combustion engine of a motor vehicle
US6230691B1 (en) * 2000-08-02 2001-05-15 Delphi Technologies, Inc. Secondary fuel pump assembly for a fuel tank
KR20020084549A (ko) * 2001-05-03 2002-11-09 현대자동차주식회사 보조연료탱크가 장착된 차량의 경사길 주행시연료공급차단 방지장치
US6810908B2 (en) * 2001-07-17 2004-11-02 Siemens Aktiengesellschaft Fuel tank for a motor vehicle
US20030062031A1 (en) * 2001-10-02 2003-04-03 Nissan Motor Co., Ltd. Fuel supply system with transfer pump and fuel supply method
US6832602B2 (en) * 2001-10-02 2004-12-21 Nissan Motor Co., Ltd. Fuel supply system with transfer pump and fuel supply method
US20030131829A1 (en) * 2001-12-13 2003-07-17 Bernd Herzog Fuel feed unit
US6708673B2 (en) * 2001-12-13 2004-03-23 Siemens Aktiengesellschaft Fuel feed unit
DE102004030911A1 (de) * 2004-06-25 2006-01-19 Mahle Filtersysteme Gmbh Tankentlüftungssystem und zugehöriges Betriebsverfahren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KR2002084549 abstract,Lee J T;November 2002; *

Also Published As

Publication number Publication date
CN100429094C (zh) 2008-10-29
JP4065454B2 (ja) 2008-03-26
ES2270390T3 (es) 2007-04-01
EP1565338A1 (de) 2005-08-24
WO2005053988A1 (de) 2005-06-16
DE502004001594D1 (de) 2006-11-09
CN1809479A (zh) 2006-07-26
JP2006512538A (ja) 2006-04-13
EP1565338B1 (de) 2006-09-27
DE10356965A1 (de) 2005-07-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RUMPF, BERND;REEL/FRAME:018030/0669

Effective date: 20050301

AS Assignment

Owner name: CONTINENTAL AUTOMOTIVE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT;REEL/FRAME:027263/0068

Effective date: 20110704

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION