US20060144842A1 - Fuel tank - Google Patents

Fuel tank Download PDF

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Publication number
US20060144842A1
US20060144842A1 US10/559,678 US55967805A US2006144842A1 US 20060144842 A1 US20060144842 A1 US 20060144842A1 US 55967805 A US55967805 A US 55967805A US 2006144842 A1 US2006144842 A1 US 2006144842A1
Authority
US
United States
Prior art keywords
fuel tank
fuel
chambers
chamber
ventilation
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
US10/559,678
Other languages
English (en)
Inventor
Andreas Boehmer
Martin Essing
Frank Reiter
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.)
Siemens AG
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: BOEHMER, ANDREAS, REITER, FRANK, ESSING, MARTIN
Publication of US20060144842A1 publication Critical patent/US20060144842A1/en
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
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
    • 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

Definitions

  • the subject matter of the invention is a fuel tank with a ventilation system. Such fuel tanks are intended for use in motor vehicles.
  • the ventilation system undertakes both the supply and ventilation of air. Whilst the supply of air is necessary in order to avoid a vacuum in the fuel tank as the fuel level decreases, the ventilation of air serves to avoid excess pressure in the fuel tank. Excess pressure can be brought about when filling the fuel tank with fuel on account of the increasing fuel level. In this case, the excess pressure leads to a hindrance in the filling of the fuel tank, with the result that the filling of the fuel tank takes a very long time. Excess pressure is also brought about by high temperatures, since the expansion of the fuel reduces the free volume in the fuel tank.
  • the fuel vaporizes at high temperatures, in particular when hot fuel which has not been used in the engine is returned to the fuel tank.
  • the ventilation system serves for safe operation of the fuel tank.
  • Such ventilation systems are arranged in the upper region of the fuel tank and have an opening in this region, via which air is led into the fuel tank or gases are led out of the fuel tank. If the vehicle is in an inclined position for an extended period of time, for example whilst parked, the ventilation opening lies below the fuel level if the fuel tank is nearly full. As a result, the ventilation opening is closed and the fuel tank cannot be ventilated.
  • a ventilation system having a plurality of openings for ventilating the fuel tank, the openings being arranged in different regions of the fuel tank. Under unfavorable circumstances, the openings of the ventilation system can lie below the fuel level in this opening as well, so that ventilation cannot be ensured under all circumstances.
  • the ventilation system with a plurality of openings requires a significantly higher outlay in terms of manufacture and assembly.
  • the object of the present invention is therefore to produce a fuel tank which can be reliably ventilated under all circumstances, the intention being for ventilation to be realizable with as little outlay as possible.
  • the object is achieved by means of a fuel tank as described in the introduction, which has at least one chamber which is designed in such a way that it is designed to hold a volume of liquid above the liquid level of the fuel tank when the fuel tank is in an inclined position, in order to separate said volume of liquid from the remaining volume of fuel for the duration of the inclination.
  • the fuel tank according to the invention permits a simplification of the ventilation system, so that ventilation lines which are complex to manufacture and difficult to assemble can be dispensed with.
  • the ventilation system can, in some cases, have only one centrally arranged opening, as a result of which the outlay required for ventilation is considerably reduced.
  • the chambers are scoop-shaped, the openings of the chambers pointing toward the side walls of the fuel tank.
  • the base of the chambers is designed in such a way that, in the normal position of the fuel tank, it is horizontal or inclined slightly downward toward the opening of the chambers.
  • the fuel can flow out of the chambers at all times and is thus available for supply to the internal combustion engine.
  • the fuel is retained in the corresponding chamber.
  • at least one chamber is arranged on each side of the fuel tank. This ensures that fuel is retained in a chamber, irrespective of which side the fuel tank is inclined toward.
  • the chambers simultaneously serve as damping elements for the liquid in the fuel tank.
  • various guide elements can be arranged at the outer side of the chambers, which guide elements serve for calming the liquid.
  • the damping elements are advantageously integrally formed on the chambers. Such elements can be retrofitted if they can be connected to the corresponding chamber by means of a plug connection.
  • the chambers can serve as mountings for further components to be arranged in the interior of the fuel tank.
  • Lines, filters, suction jet pumps or other functional units can be fastened in the fuel tank by means of locking and plug connections arranged on the outer side of the chambers.
  • FIG. 1 shows a fuel tank according to the prior art
  • FIG. 2 shows the fuel tank according to FIG. 1 in an inclined position
  • FIG. 3 shows a fuel tank according to the invention
  • FIG. 4 shows the fuel tank according to FIG. 3 in an inclined position.
  • the fuel tank 1 illustrated in FIG. 1 is arranged horizontally and is therefore located in the normal position.
  • the fuel tank 1 is illustrated without fixtures such as fuel supply unit, filter, pressure regulator or lines.
  • the fuel tank 1 is nearly full of fuel 2 , so that the liquid level A is located in the upper region of the fuel tank 1 .
  • a volume of fuel vapor/air mixture 3 is located above the liquid level A.
  • a ventilation opening 4 belonging to a ventilation system (which is not illustrated in more detail) is arranged centrally in the upper region of the fuel tank 1 .
  • the fuel tank 1 from FIG. 1 is arranged so as to be inclined to the left in FIG. 2 .
  • the inclination of the fuel tank 1 results in the ventilation opening 4 now being located below the liquid level A.
  • the fuel vapor/air mixture 3 is enclosed in the upper right corner of the fuel tank 1 by the fuel 2 . In this arrangement, the fuel tank 1 can no longer be ventilated.
  • FIG. 3 shows the fuel tank 1 according to the invention in the normal position.
  • the fuel tank 1 additionally has two chambers 5 , 6 which are arranged on the upper delimiting wall 8 of the fuel tank 1 . Both chambers 5 , 6 are open toward the side walls 9 , 10 of the fuel tank 1 .
  • the bases 7 of the chambers 5 , 6 are designed to be inclined slightly downward so that, in this position of the fuel tank 1 , fuel 2 can flow out of the chambers 5 , 6 into the fuel tank 1 .
  • Guide elements 11 are fastened to the chambers 5 , 6 by means of locking and plug connections 12 for damping the movement of the fuel.
  • FIG. 4 shows an inclined arrangement of the fuel tank 1 .
  • the chambers 5 , 6 are likewise inclined on account of the inclination of the fuel tank.
  • the inclination is in this case so small that the slightly inclined base 7 of the chamber 6 is now inclined upward, so that, in this position, the chamber 6 retains a certain amount of fuel 2 .
  • less fuel is left over in the fuel tank 1 , so that the fuel level A′ is lower than illustrated in FIG. 2 .
  • the ventilation opening 4 is no longer closed off by the fuel 2 .
  • the fuel tank 1 can be reliably ventilated.

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)
US10/559,678 2003-10-14 2004-09-10 Fuel tank Abandoned US20060144842A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10347736A DE10347736A1 (de) 2003-10-14 2003-10-14 Kraftstoffbehälter
DE103-47-736.5 2003-10-14
PCT/EP2004/052118 WO2005035289A1 (de) 2003-10-14 2004-09-10 Kraftstoffbehälter

Publications (1)

Publication Number Publication Date
US20060144842A1 true US20060144842A1 (en) 2006-07-06

Family

ID=34428389

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/559,678 Abandoned US20060144842A1 (en) 2003-10-14 2004-09-10 Fuel tank

Country Status (6)

Country Link
US (1) US20060144842A1 (ja)
EP (1) EP1673252A1 (ja)
JP (1) JP2006527134A (ja)
CN (1) CN1835855A (ja)
DE (1) DE10347736A1 (ja)
WO (1) WO2005035289A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080035649A1 (en) * 2002-07-19 2008-02-14 Volvo Lastvagnar Ab Fuel tank
US20110272412A1 (en) * 2009-01-22 2011-11-10 Magna Steyr Fuel Systems Gesmbh Fuel tank having a built-in auxilliary tank

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2932906B1 (fr) * 2008-06-24 2010-09-03 Inergy Automotive Systems Res Procede de simulation de la ventilation d'un reservoir liquide.
BR112013010053A2 (pt) * 2010-10-26 2016-08-02 Volvo Lastvagnar Ab método, sistema e unidade de controle para suprimento de combustível para um veículo
CN103255799B (zh) * 2013-05-13 2015-03-04 广西柳工机械股份有限公司 燃油箱集油装置
DE102017120102A1 (de) * 2017-08-31 2019-02-28 Kautex Textron Gmbh & Co. Kg Betriebsflüssigkeitsbehälter mit Schottwänden zum Ausgleich von Befüllvolumina bei Befüllvorgängen in Schräglage

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719583A (en) * 1951-01-02 1955-10-04 Phillips Petroleum Co Fuel tank for aircraft
US3642086A (en) * 1969-05-02 1972-02-15 Spyder Mfg Co Inc Maintenance vehicle
US3804292A (en) * 1970-08-06 1974-04-16 C Chiti Fire-preventing fuel tank for motor vehicles and/or boats
US4261477A (en) * 1979-03-28 1981-04-14 Diamler-Benz Aktiengesellschaft Motor vehicle fuel tank venting device
US4354521A (en) * 1979-04-06 1982-10-19 Ab Volvo Device in a fuel tank for motor vehicles
US4431027A (en) * 1981-04-21 1984-02-14 General Motors Corporation Reservoir for remote fluid system
US4457443A (en) * 1981-05-30 1984-07-03 Daimler-Benz Aktiengesellschaft Motor vehicle fuel tank venting device
US4531653A (en) * 1983-09-12 1985-07-30 Honda Giken Kogyo Kabushiki Kaisha Ventilation device for fuel tanks
US4836402A (en) * 1986-07-09 1989-06-06 Nissan Motor Company, Limited Fuel tank vent system for automotive vehicles
US4844278A (en) * 1986-12-03 1989-07-04 Daimler-Benz Aktiengesellschaft Fuel tank for vehicles with fuel movement calmina arrangement
US6293420B1 (en) * 1997-07-25 2001-09-25 Kautex Textron Gmbh & Co., Kg. Fuel tank

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719583A (en) * 1951-01-02 1955-10-04 Phillips Petroleum Co Fuel tank for aircraft
US3642086A (en) * 1969-05-02 1972-02-15 Spyder Mfg Co Inc Maintenance vehicle
US3804292A (en) * 1970-08-06 1974-04-16 C Chiti Fire-preventing fuel tank for motor vehicles and/or boats
US4261477A (en) * 1979-03-28 1981-04-14 Diamler-Benz Aktiengesellschaft Motor vehicle fuel tank venting device
US4354521A (en) * 1979-04-06 1982-10-19 Ab Volvo Device in a fuel tank for motor vehicles
US4431027A (en) * 1981-04-21 1984-02-14 General Motors Corporation Reservoir for remote fluid system
US4457443A (en) * 1981-05-30 1984-07-03 Daimler-Benz Aktiengesellschaft Motor vehicle fuel tank venting device
US4531653A (en) * 1983-09-12 1985-07-30 Honda Giken Kogyo Kabushiki Kaisha Ventilation device for fuel tanks
US4836402A (en) * 1986-07-09 1989-06-06 Nissan Motor Company, Limited Fuel tank vent system for automotive vehicles
US4844278A (en) * 1986-12-03 1989-07-04 Daimler-Benz Aktiengesellschaft Fuel tank for vehicles with fuel movement calmina arrangement
US6293420B1 (en) * 1997-07-25 2001-09-25 Kautex Textron Gmbh & Co., Kg. Fuel tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080035649A1 (en) * 2002-07-19 2008-02-14 Volvo Lastvagnar Ab Fuel tank
US20110272412A1 (en) * 2009-01-22 2011-11-10 Magna Steyr Fuel Systems Gesmbh Fuel tank having a built-in auxilliary tank
US8844754B2 (en) * 2009-01-22 2014-09-30 Magna Steyr Fuel Systems Gesmbh Fuel tank having a built-in auxiliary tank

Also Published As

Publication number Publication date
CN1835855A (zh) 2006-09-20
WO2005035289A1 (de) 2005-04-21
JP2006527134A (ja) 2006-11-30
DE10347736A1 (de) 2005-06-09
EP1673252A1 (de) 2006-06-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BOEHMER, ANDREAS;ESSING, MARTIN;REITER, FRANK;REEL/FRAME:017361/0667;SIGNING DATES FROM 20051102 TO 20051110

STCB Information on status: application discontinuation

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