EP2121370A1 - Reservoir a carburant de vehicule - Google Patents

Reservoir a carburant de vehicule

Info

Publication number
EP2121370A1
EP2121370A1 EP08724183A EP08724183A EP2121370A1 EP 2121370 A1 EP2121370 A1 EP 2121370A1 EP 08724183 A EP08724183 A EP 08724183A EP 08724183 A EP08724183 A EP 08724183A EP 2121370 A1 EP2121370 A1 EP 2121370A1
Authority
EP
European Patent Office
Prior art keywords
fuel
tank compartment
compartment
catch
main tank
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.)
Withdrawn
Application number
EP08724183A
Other languages
German (de)
English (en)
Other versions
EP2121370A4 (fr
Inventor
Johan Liljekvist
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.)
Scania CV AB
Original Assignee
Scania CV AB
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 Scania CV AB filed Critical Scania CV AB
Publication of EP2121370A1 publication Critical patent/EP2121370A1/fr
Publication of EP2121370A4 publication Critical patent/EP2121370A4/fr
Withdrawn legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses

Definitions

  • the present invention relates to a fuel tank arrangement for a vehicle, in particular a heavy load vehicle, comprising a fuel tank partitioned in a main tank compartment and a catch tank compartment, wherein a fuel supply line is arranged within said catch tank compartment for supplying fuel out from said catch tank compartment to a combustion engine of said vehicle, wherein said main tank compartment and said catch tank compartment are separated from each other by means of at least one partitioning wall.
  • EP 0 803 394 Al describes such a fuel tank arrangement, wherein a catch compartment is arranged within a tank. Around the catch compartment a main tank compartment is included within the fuel tank. The catch compartment includes a check valve mechanism in order to prevent that in a low-filling state within the main tank compartment, fuel is flowing out from the catch tank compartment into the main tank compartment whereby the fuel supply to the combustion engine can be affected.
  • FR 2,679,840 also discloses a fuel tank arrangement having a main tank compartment surrounding a catch tank compartment within the fuel tank.
  • the catch tank compartment is provided with inclined partitioning walls, wherein closing flaps are pivotable arranged within the catch tank compartment. These flaps allow an inflow of fuel through passages within the partitioning wall from the main tank compartment into the catch tank compartment but they prevent an unwanted outflow of fuel out of the catch tank compartment in a low-filling state of the main tank compartment.
  • a similar solution is also known from GB 2 413 784 A also showing a main tank compartment arranged within a fuel tank around a catch tank compartment.
  • the catch tank compartment is arranged with pivotable flaps which allow an inflow of fuel from the main tank compartment but prevent an outflow of fuel out of the catch tank compartment into the main tank compartment.
  • a fuel tank arrangement in particular a heavy load vehicle, comprising a fuel tank partitioned in a main tank compartment and a catch tank compartment, wherein a fuel supply line is arranged within said catch tank compartment for supplying fuel out from said catch tank compartment to a combustion engine of said vehicle, wherein said main tank compartment and said catch tank compartment are separated from each other by means of at least one partitioning wall.
  • a valve mechanism is arranged within said partitioning wall which, depending on a filling condition within said main tank compartment, is opened or closed in response to sucking-in fuel via said fuel supply line.
  • the valve mechanism therefore operates based on two conditions.
  • the first condition is the filling condition within the main tank compartment.
  • the valve mechanism provides a possibility of a fuel flow from the main tank compartment into the catch tank compartment.
  • valve mechanism closes and therefore prevents an outflow of fuel from said catch tank compartment into said main tank compartment.
  • another operating condition of the valve mechanism is whether fuel is sucked in via said fuel supply line to the combustion engine. Without a sucking-in of fuel into said supply line, the valve mechanism does not actively open a passage between the main tank compartment and the catch tank compartment. Therefore, the requirement of fulfilling these two operating conditions for opening said valve mechanism guarantees that an unwanted outflow of fuel from said catch tank compartment into said main tank compartment in a low-filling state of said main tank compartment as well as sucking-in air from an empty main tank compartment into the fuel supply line can be efficiently prevented.
  • said catch tank compartment is filled with fuel, primarily, wherein an overflow is provided for conducting excessive fuel into said main tank compartment, when said catch tank compartment is completely filled with fuel .
  • an overflow is provided for conducting excessive fuel into said main tank compartment, when said catch tank compartment is completely filled with fuel .
  • valve mechanism comprises a first valve member within said main tank compartment which opens a passage to said catch tank compartment, when the fuel within said main tank compartment exceeds a predetermined filling state, and which closes said passage to said catch tank compartment, when the fuel within said main tank compartment falls below said predetermined filling state.
  • the first valve member therefore reacts in dependence on the filling condition of the main tank compartment.
  • that first valve member includes a float having a lower density than fuel. This means that the float tends to swim on the surface level due to its buoyancy.
  • said float is a ball guided within a guiding duct between an open position and a closing position, wherein said guiding duct is arranged at the partitioning wall.
  • said first valve member includes an elastic valve lobe supporting said float and being movable between an open position and a closing position by means of said float.
  • valve mechanism on the catch tank compartment side, the invention can further provide that said valve mechanism includes a second valve member within said catch tank compartment, which opens and closes said passage in response to sucking-in fuel via said fuel supply line.
  • said second valve mechanism includes a ball guided within a guiding duct between an open position and a closing position, wherein said guiding duct is arranged at the partitioning wall and wherein said ball has a higher density than said fuel and wherein said ball is sucked into its open position when fuel is sucked into said supply line.
  • said second valve mechanism includes an elastic valve lobe being movable between an open position and a closing position, wherein said elastic valve lobe is sucked into its open position when fuel is sucked into said supply line.
  • a further aspect of the invention of the invention provides that said partitioning wall is inclined.
  • Fig. 1 depicts a schematical perspective view of a fuel tank arrangement according to the invention
  • Fig.2 schematically shows the fuel tank arrangement in a cross section
  • Fig. 3 shows one embodiment of the valve mechanism
  • Fig.4 shows an alternative embodiment of the valve mechanism according to the invention.
  • Fig. 1 shows a schematical perspective drawing of a fuel tank arrangement 10 for a vehicle.
  • the fuel tank arrangement 10 includes a fuel tank 12, which is separated by a partitioning wall 14 into a main tank compartment 16 and a catch tank compartment 18.
  • the partitioning wall 14 is arranged in an inclined manner. It is sealingly attached to the bottom and the sidewalls of the fuel tank 12, but it has an upper edge 20, which is freely arranged within the interior of the fuel tank 12 and forms an overflow for fuel, which will be explained in detail below.
  • the partitioning wall 14 moreover comprises a substantially vertical foot portion 22. At this foot portion 22, a valve mechanism 24 is arranged, which allows a fluidic communication between the main tank compartment 16 and the catch tank compartment 18 under certain circumstances.
  • Fuel is drawn out of the catch tank compartment 18 by means of a fuel supply line 26, which has an open end within the catch tank compartment close to the valve mechanism 24 at the bottom of the fuel tank 12.
  • a fuel supply line 26 which has an open end within the catch tank compartment close to the valve mechanism 24 at the bottom of the fuel tank 12.
  • fig. 1 shows a fuel return line 28 for leading excessive fuel from the combustion engine back into the fuel tank 12.
  • the fuel return line 28 has a free end opening at the bottom of the catch tank compartment 18.
  • Fig. 2 shows the fuel tank arrangement 10 in a schematical cross section with a certain filing state within the main tank compartment 16 and the catch tank compartment 18.
  • Fig. 2 shows that in the main tank compartment 16, a fuel level 30 is prevailing, which is way below a fuel level 32 within the catch tank compartment 18.
  • the fuel level 32 is determined by the upper edge 20 of the partitioning wall 14 which acts as an overflow. In this state, when additional fuel is filled into said catch tank compartment 18, it flows over the free edge 20 of the partitioning wall 14 into the main tank compartment 16.
  • Fig. 2 also shows the fuel return line 28 leading a return fuel flow 34 into the catch tank compartment 18.
  • it shows the fuel supply line 26 leading a supply fuel flow 36 via a non-depicted fuel pump to a combustion engine of the vehicle.
  • fig. 2 shows a valve mechanism 24 as a "black box" wherein a fuel flow 38 represents the fuel flow from the main tank compartment 16 into the catch tank compartment 18.
  • Fig. 3 shows one embodiment of the valve mechanism 24.
  • a passage 40 is arranged, which fluidically connects the main tank compartment 16 with the catch tank compartment 18.
  • sealing rings 42 and 44 are arranged.
  • the fuel tank arrangement moreover includes in the crossing region of the foot portion 22 and the bottom of the fuel tank 12 wall portions 46, 48 and 50, which delineate guiding ducts 52 and 54.
  • a valve ball 56 is arranged, which is movable between a lower position, wherein it closes the passage 40 on the side of the main tank 16, and an upper position 60 shown in dashed lines, wherein it releases this passage 40.
  • the ball 56 has a lower density than the fuel stored within the fuel tank 12. Therefore, the ball 60 tends to swim on the surface level of the fuel, as far as permitted by the guide duct 52. When the fuel level within the main tank compartment 16 exceeds the upper position 60, the ball remains in this upper position 60 held by the wall portion 46.
  • the second guide duct 54 also receives a valve ball, namely the valve ball 48.
  • This valve ball has a higher density than the fuel stored within the fuel tank 50. Therefore, the valve ball tends to maintain its position in a stationary state of the arrangement.
  • the ball 48 is sucked within the guide duct 54 in the direction of the open end of the supply line 26 and therefore opens the orifices of the passage 40 at the side of the catch tank compartment 18.
  • valve mechanism 24 of fig. 3 has the following operation. As long as there is sufficient fuel within the main tank compartment 16 and therefore the ball 56 maintains its upper position represented by reference numeral 60, a fuel flow from the main tank compartment 16 into the catch tank compartment 18 is possible, when fuel is sucked into the supply line 26. When a fuel supply to the combustion engines stops, the ball 48 prevents an outflow of fuel from the catch tank compartment 18 into the main tank compartment 16 by closing the passage 40 due to a sealing abutment to the sealing ring 44.
  • the ball 56 As soon as the fuel level within the main tank compartment 16 sinks to a level such that the ball 56 takes its position close to the passage 40, it closes the passage 40 by sealingly abutting against the sealing ring 42. Thus, even if fuel is sucked through the supply line 26 out from the catch tank compartment 18, the ball 56 keeps the passage 40 closed and therefore prevents sucking-in air into the catch tank compartment and into the supply line 26.
  • Fig. 4 shows an alternative embodiment of the valve mechanism.
  • two lobes 62 and 64 formed from elastic rubber material are fixed to the foot portion 22 of the partitioning wall 14.
  • the lobes 62, 64 are fixed to the foot portion 22 by means of rivets 66 or similar fixing means.
  • the lobe portion 62 is provided at its movable free end with a float 68, which has a substantially lower density than the fuel stored within the fuel tank 12.
  • the two elastic rubber lobes 62 and 64 do have a higher density compared to the fuel stored in the fuel tank 12.
  • the functioning of the valve mechanism 24 according to fig. 4 is similar to that described with regard to fig. 3.
  • the float 68 provides that the lobe 62 is held in a position where it releases the passage 40 as long as there is sufficient fuel within the main tank compartment. This is due to the fact that the float 68 tends to swim on the upper surface level of the fuel contained in the main tank compartment 16. Due to the elasticity of the lobe 64, it is pressed against the foot region 22 enclosing the passage 40 as long as the hydraulic pressure within the catch tank compartment 18 is higher than in the main tank compartment 16.
  • the invention provides an easily structured but reliable arrangement to guarantee an air-free fuel supply to a combustion engine.

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)

Abstract

L'invention porte sur une conception (10) de réservoir à carburant de véhicule (5), en particulier de véhicule lourd, comprenant un réservoir à carburant (12) divisé en un compartiment principal (16) et un compartiment de prise (18) où aboutit la conduite d'alimentation (26) en carburant du moteur du véhicule. Les deux compartiments (16) (18) sont séparés l'un de l'autre par au moins une cloison (14). Pour fournir au moteur un carburant fiable et sans bulles d'air, il est prévu un mécanisme de soupape (24) disposé dans la cloison (24), qui en fonction du niveau de remplissage du compartiment principal (16), s'ouvre ou se ferme en réponse à la dépression d'aspiration du carburant dans la conduite d'alimentation (26).
EP08724183A 2007-02-27 2008-02-20 Reservoir a carburant de vehicule Withdrawn EP2121370A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0700493A SE530889C2 (sv) 2007-02-27 2007-02-27 Bränsletankarrangemang för ett fordon
PCT/SE2008/050198 WO2008105725A1 (fr) 2007-02-27 2008-02-20 Réservoir à carburant de véhicule

Publications (2)

Publication Number Publication Date
EP2121370A1 true EP2121370A1 (fr) 2009-11-25
EP2121370A4 EP2121370A4 (fr) 2010-05-05

Family

ID=39721492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08724183A Withdrawn EP2121370A4 (fr) 2007-02-27 2008-02-20 Reservoir a carburant de vehicule

Country Status (4)

Country Link
EP (1) EP2121370A4 (fr)
BR (1) BRPI0807931A2 (fr)
SE (1) SE530889C2 (fr)
WO (1) WO2008105725A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102325753B (zh) 2008-12-19 2014-09-10 百时美施贵宝公司 用作激酶抑制剂的咔唑甲酰胺化合物
AT508043B1 (de) * 2009-03-23 2011-04-15 Alutech Gmbh Fahrzeugtank
EP2842784A1 (fr) 2013-08-28 2015-03-04 Magna Steyr Fuel Systems GesmbH Réservoir de véhicule utilitaire
EP2842785B1 (fr) 2013-08-28 2016-02-03 Magna Steyr Fuel Systems GesmbH Réservoir de véhicule utilitaire
US9937786B2 (en) * 2015-06-22 2018-04-10 Ford Global Technologies, Llc Fuel tank baffle with pivotable vanes
CN110385980B (zh) * 2018-04-23 2022-12-20 陕西重型汽车有限公司 车辆油箱

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266482A2 (fr) * 1986-11-07 1988-05-11 WALBRO CORPORATION (Corporation of Delaware) Réservoir dans réservoir et filtre à diaphragme
FR2679840A1 (fr) * 1991-07-30 1993-02-05 Peugeot Piege a carburant perfectionne et reservoir equipe d'un tel piege.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257235A (en) * 1991-07-03 1993-01-06 Ford Motor Co A fuel shut-off device
FR2747618B1 (fr) * 1996-04-22 1998-06-05 Peugeot Dispositif de puisage de carburant a reserve dite positive et vehicule automobile equipe de ce dispositif
DE10028458A1 (de) * 2000-06-08 2001-12-13 Bosch Gmbh Robert Vorrichtung zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine eines Kraftfahrzeugs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266482A2 (fr) * 1986-11-07 1988-05-11 WALBRO CORPORATION (Corporation of Delaware) Réservoir dans réservoir et filtre à diaphragme
FR2679840A1 (fr) * 1991-07-30 1993-02-05 Peugeot Piege a carburant perfectionne et reservoir equipe d'un tel piege.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008105725A1 *

Also Published As

Publication number Publication date
BRPI0807931A2 (pt) 2014-07-15
SE530889C2 (sv) 2008-10-07
EP2121370A4 (fr) 2010-05-05
SE0700493L (sv) 2008-08-28
WO2008105725A1 (fr) 2008-09-04

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