WO2011071440A1 - Arrangement for fuel supply to an engine - Google Patents

Arrangement for fuel supply to an engine Download PDF

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Publication number
WO2011071440A1
WO2011071440A1 PCT/SE2010/051330 SE2010051330W WO2011071440A1 WO 2011071440 A1 WO2011071440 A1 WO 2011071440A1 SE 2010051330 W SE2010051330 W SE 2010051330W WO 2011071440 A1 WO2011071440 A1 WO 2011071440A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
main tank
tanks
tank
arrangement
Prior art date
Application number
PCT/SE2010/051330
Other languages
French (fr)
Inventor
Henrik Fagerhof
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
Priority to JP2012539855A priority Critical patent/JP5642800B2/en
Priority to BR112012013290A priority patent/BR112012013290A8/en
Priority to US13/500,315 priority patent/US20120199224A1/en
Priority to CN201080048703.1A priority patent/CN102596624B/en
Priority to RU2012128591/11A priority patent/RU2501671C1/en
Priority to EP10836284.9A priority patent/EP2509815B1/en
Publication of WO2011071440A1 publication Critical patent/WO2011071440A1/en

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
    • 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
    • F02M37/007—Layout or arrangement of systems for feeding fuel characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools
    • 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
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
    • 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
    • F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
    • F02M37/025—Feeding by means of a liquid fuel-driven jet pump
    • 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
    • B60K2015/03118—Multiple tanks, i.e. two or more separate tanks
    • 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
    • B60K2015/03118—Multiple tanks, i.e. two or more separate tanks
    • B60K2015/03138—Pumping means between the compartments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86187—Plural tanks or compartments connected for serial flow

Definitions

  • the invention relates to an arrangement for transferring fuel from one or more secondary tanks to a main tank, according to the preamble of claim 1.
  • the invention also relates to a vehicle comprising said arrangement.
  • a large proportion of vehicles used for example to carry passengers and goods are powered by some kind of combustion engine in which a fuel in liquid form is converted to a necessary motion.
  • the vehicle is therefore provided with one or more fuel tanks to hold sufficient fuel for a predetermined period of use of the vehicle.
  • Vehicles with high fuel consumption and/or for which long intervals between refuellings are desirable often have two or more fuel tanks situated at appropriate locations where there is space in the vehicle, to increase the total volume of fuel the vehicle can carry.
  • each secondary tank is connected to a main tank from which fuel is supplied to the vehicle's engine.
  • the respective tanks are connected to the main tank by a hose which extends between the bottom of the respective fuel tank and the bottom of the main tank, and the transfer of fuel takes place by siphon action which equalises the fuel levels in the tanks.
  • the object of the present invention is to eliminate the above problems. This object is achieved by an arrangement according to claim 1.
  • the problems described above are solved by the return flow from the fuel-consuming unit, usually a combustion engine, being led to the main tank via a return line which is divided into a number of secondary lines each fitted with a venturi tube.
  • the venturi tube comprises a passage with reduced cross sectional area which thereby increases the velocity of the return flow through the passage.
  • the increased flow velocity in the passage then induces in the transfer line a suction which can be utilised to transfer fuel from the secondary tank or secondary tanks to the main tank.
  • the ancillary space in the main tank is a delineated space provided with drainage to return fuel from the ancillary space to the main tank when the ancillary space is overfilled.
  • This embodiment increases the arrangement's reliability in that the ability to continuously drain fuel back from the ancillary space to the main tank prevents overfilling of the ancillary space which might otherwise result in leakage.
  • the ancillary space is separated from the fuel tank by a wall which has an aperture situated in the upper part of the ancillary space and of the fuel tank.
  • This embodiment represents a simple and reliable arrangement with continuous and guaranteed drainage of the ancillary space.
  • each secondary tank and the main tank have a bottom surface in which the transfer line is connected. This transfer line connection means that almost all of the fuel in the tanks can be transferred to the ancillary space and then be used by the fuel-consuming unit.
  • the bottom surface may be configured to slope towards the transfer line connection.
  • a drainage hose runs between the main tank and at least one secondary tank. This embodiment ensures that the main tank is not overfilled, which might otherwise occur when there is a large quantity of fuel in the arrangement's tanks.
  • the main tank and the respective secondary tanks are arranged at substantially the same height, and a pipe extends from the connection of the drainage hose or drainage hoses in the bottom surface of the secondary tank or secondary tanks such that the mouth of the drainage hose is situated above the bottom surface.
  • This form of drainage between the tanks has the advantage that as long as the fuel level in the main tank is above the mouth of the pipe in the secondary tank or secondary tanks, fuel continuously drains back from the main tank to the secondary tank or secondary tanks, but when the fuel level in the main tank is below the level of the mouth of the pipe, no further fuel will drain.
  • This is very advantageous in that the fuel in the secondary tanks is thereby transferred to the main tank and can then be used for the fuel-consuming unit.
  • the arrangement comprises a main tank and one secondary tank and the return line is divided into two secondary lines. This is a specific
  • Figure 1 illustrates a schematic flow diagram for an embodiment of an arrangement according to the invention, as seen from above
  • Figure 2 illustrates a basic configuration of a venturi tube
  • Figure 3 illustrates a cross sectional view of an embodiment of a secondary tank and a main tank which form part of the arrangement according to the invention.
  • FIG 1 illustrates schematically the flow of the fuel in an embodiment of an
  • the fuel is transferred from the ancillary space 13 to a fuel-consuming unit 14 which may for example be a combustion engine.
  • a fuel-consuming unit 14 which may for example be a combustion engine.
  • Both the main tank 11 and secondary tank 12 are suspended at substantially the same height on a framework 15, which may for example be a vehicle framework.
  • the relationship between the respective heights at which the secondary tank and main tank are situated is important for the satisfactory functioning of the arrangement according to the invention. This relationship is illustrated schematically in Figure 3.
  • fuel is transferred continuously from the ancillary space 13 to the fuel-consuming unit 14 via a fuel line 16 by a fuel pump, not shown, which is usually situated close to the fuel-consuming unit 14.
  • the pump is adapted to generate a fuel flow to the fuel-consuming unit 14 which is always greater than the latter's actual fuel consumption. This results in a certain quantity of fuel not being combusted in the unit. This unused surplus is returned to the ancillary space 13 via a return line 17.
  • the return line 17 divides into two, or in certain cases more, mutually parallel secondary return lines 18 each leading to the ancillary space 13.
  • the number of secondary return lines 18 corresponds to the total number of tanks, comprising the secondary tanks 12 plus the main tank 1 1, which form part of the arrangement. In the present case, this means two secondary return lines.
  • a venturi tube 20 is arranged along each secondary return line 18. The venturi tube 20 illustrated schematically in Figure 2 and described in more detail later in the description is used to transfer fuel from the main tank 1 1 and the secondary tank 12 to the ancillary space 13 in the main tank 1 1.
  • a transfer line 22 which extends from the bottom of the respective tank to any of the venturi tubes 20 is connected near the tank bottom or at the tank's lowest point to ensure that as much fuel as possible is transferred from the tank.
  • Fuel tanks are usually provided with a bottom plug for cleaning out accumulated litter in them and for draining off any water present in them, and the existing aperture is with advantage used to connect the transfer line 22.
  • the tank bottom may be provided with one or more surfaces sloping towards the outlet to guide all of the fuel in the tank to the mouth of the transfer line 22.
  • the quantity of fuel transferred from the main tank 1 1 and the secondary tank 12 to the ancillary space 13 is always greater than that consumed by the fuel-consuming unit 14, which means that when the arrangement is in use the fuel level in the ancillary space 13 will always be higher than the level in the main tank 1 1, ensuring a reliable supply of fuel from the ancillary space 13 to the unit 14.
  • the fuel is drawn from the lower part of the ancillary space 13 to ensure that the inlet to the line 16 is always below the fuel level in the ancillary space 13, even if the latter is not completely full of fuel.
  • the top edge of the ancillary space 13 is open to the main tank 1 1, so when the fuel level in the ancillary space 13 reaches the aperture, any surplus fuel will drain back to the main tank 1 1 by flowing over the edge of the boundary wall 25.
  • the ancillary space 13 constitutes only a small part of the main tank 1 1.
  • the size of the ancillary space 13 in relation to the main tank 1 1 depends on the expected fuel requirement of the fuel-consuming unit 14 and on the volumes available for tanks.
  • the fuel level in the ancillary space 13 drops until the respective surface levels in the main tank 1 1, the secondary tank 12 and the ancillary space 13 are equalised by siphon action through the connecting transfer line 22.
  • a venturi tube 20 and the flow through it during use are illustrated schematically in Figure 2.
  • the venturi tube comprises a longitudinal passage 21 , the cross-sectional area of which near the centre of the venturi tube is reduced relative to the cross-sectional area at the venturi tube's inlet and subsequently increases again to substantially the same as at the inlet.
  • the reduction in cross-sectional area results in an increase in the flow velocity in this section of the passage 21, thereby inducing a suction in the transfer line 22 connected to the passage 21 near to the point where the cross-sectional area reaches its minimum.
  • Figure 3 illustrates a cross-sectional view through the arrangement in Figure 1 to illustrate the relationship between the respective heights at which the tanks are situated.
  • the secondary tank 12 and the main tank 11, in which the section runs through the ancillary space 13, are each suspended on the framework 15 by
  • FIG. 3 illustrates conceivable fuel levels in the tanks during operation. The fuel is transferred continuously to the ancillary space 13, resulting in the higher fuel level in this space.
  • a drainage hose 23 runs between the bottom of the main tank and the bottom of the secondary tank to prevent the main tank 1 1 being overfilled.
  • a pipe 24 is connected to the drainage hose 23 in such a way that the latter's mouth in the secondary tank 12 is moved slightly upwards from the bottom of the secondary tank. The purpose of this pipe 24 is to ensure that, as long as the fuel level in the main tank 11 is above the height at which the mouth of the pipe is situated, fuel will drain continuously from the main tank 1 1 to the secondary tank 12 via the drainage hose.

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

Abstract

The present invention relates to an arrangement for transferring fuel from one or more secondary tanks (12) to a main tank (11). The arrangement comprises: - a main tank (11); - one or more secondary tanks (12); - a venturi tube (20) situated close to the main tank (11) and each of the secondary tanks (12); - a return line (17) intended to lead surplus fuel back from the fuel-consuming unit (14) to the main tank (11), which return line (17) is divided into as many secondary return lines (18) as the total number of tanks, comprising secondary tanks (12) and the main tank (11); which transfer of fuel from the respective secondary tanks (12) and the main tank (11) to the ancillary space (13) takes place by means of venturi tubes (20) arranged along the secondary lines (18).

Description

Arrangement for fuel supply to an engine
Technical field
The invention relates to an arrangement for transferring fuel from one or more secondary tanks to a main tank, according to the preamble of claim 1.
The invention also relates to a vehicle comprising said arrangement.
Background
A large proportion of vehicles used for example to carry passengers and goods are powered by some kind of combustion engine in which a fuel in liquid form is converted to a necessary motion. The vehicle is therefore provided with one or more fuel tanks to hold sufficient fuel for a predetermined period of use of the vehicle.
Vehicles with high fuel consumption and/or for which long intervals between refuellings are desirable often have two or more fuel tanks situated at appropriate locations where there is space in the vehicle, to increase the total volume of fuel the vehicle can carry.
In existing fuel systems, each secondary tank is connected to a main tank from which fuel is supplied to the vehicle's engine. The respective tanks are connected to the main tank by a hose which extends between the bottom of the respective fuel tank and the bottom of the main tank, and the transfer of fuel takes place by siphon action which equalises the fuel levels in the tanks.
It has been found however that this fuel system configuration has significant shortcomings in that large quantities of fuel which splash around in the tanks are not transferred to the main tank, which means that large volumes of fuel cannot be used for the engine. Moreover, the volume of fuel which cannot be used means that the usable volume is also smaller and that the vehicle is constantly transporting an extra weight which increases its fuel consumption and the stress and wear on certain of its components.
There is therefore a need for an arrangement which ensures a more reliable transfer of fuel from the secondary tanks to the main tank and thence to an engine.
Summary of the invention
The object of the present invention is to eliminate the above problems. This object is achieved by an arrangement according to claim 1.
The problems described above are solved by the return flow from the fuel-consuming unit, usually a combustion engine, being led to the main tank via a return line which is divided into a number of secondary lines each fitted with a venturi tube. The venturi tube comprises a passage with reduced cross sectional area which thereby increases the velocity of the return flow through the passage. The increased flow velocity in the passage then induces in the transfer line a suction which can be utilised to transfer fuel from the secondary tank or secondary tanks to the main tank. This arrangement is very advantageous as it results in continuous and reliable transfer of the fuel without involving any moving parts which would require maintenance.
In one embodiment of the arrangement according to the invention the ancillary space in the main tank is a delineated space provided with drainage to return fuel from the ancillary space to the main tank when the ancillary space is overfilled. This embodiment increases the arrangement's reliability in that the ability to continuously drain fuel back from the ancillary space to the main tank prevents overfilling of the ancillary space which might otherwise result in leakage.
In one embodiment of the arrangement, the ancillary space is separated from the fuel tank by a wall which has an aperture situated in the upper part of the ancillary space and of the fuel tank. This embodiment represents a simple and reliable arrangement with continuous and guaranteed drainage of the ancillary space. In one embodiment of the arrangement, each secondary tank and the main tank have a bottom surface in which the transfer line is connected. This transfer line connection means that almost all of the fuel in the tanks can be transferred to the ancillary space and then be used by the fuel-consuming unit. To further enhance the ability to transfer the fuel, the bottom surface may be configured to slope towards the transfer line connection.
In one embodiment of the arrangement, a drainage hose runs between the main tank and at least one secondary tank. This embodiment ensures that the main tank is not overfilled, which might otherwise occur when there is a large quantity of fuel in the arrangement's tanks.
In one embodiment of the arrangement, the main tank and the respective secondary tanks are arranged at substantially the same height, and a pipe extends from the connection of the drainage hose or drainage hoses in the bottom surface of the secondary tank or secondary tanks such that the mouth of the drainage hose is situated above the bottom surface. This form of drainage between the tanks has the advantage that as long as the fuel level in the main tank is above the mouth of the pipe in the secondary tank or secondary tanks, fuel continuously drains back from the main tank to the secondary tank or secondary tanks, but when the fuel level in the main tank is below the level of the mouth of the pipe, no further fuel will drain. This is very advantageous in that the fuel in the secondary tanks is thereby transferred to the main tank and can then be used for the fuel-consuming unit.
In one embodiment of it, the arrangement comprises a main tank and one secondary tank and the return line is divided into two secondary lines. This is a specific
embodiment of the arrangement according to the invention. This arrangement results in reliable fuel transfer, as the return flow from the fuel-consuming unit is only used in two venturi tubes.
Arrangements according to any of the embodiments above may with advantage be used in other types of vehicle.
Brief description of the drawings
The invention is explained in more detail below with reference to the drawings in which: Figure 1 illustrates a schematic flow diagram for an embodiment of an arrangement according to the invention, as seen from above
Figure 2 illustrates a basic configuration of a venturi tube
Figure 3 illustrates a cross sectional view of an embodiment of a secondary tank and a main tank which form part of the arrangement according to the invention.
Detailed description of the invention
Figure 1 illustrates schematically the flow of the fuel in an embodiment of an
arrangement for transferring fuel from a main fuel tank 1 1 and a secondary tank 12 to an ancillary space 13 arranged in the main tank 1 1. The flow of the fuel in the arrangement is illustrated in the drawing by arrows placed alongside the various pipes which form part of the arrangement.
The fuel is transferred from the ancillary space 13 to a fuel-consuming unit 14 which may for example be a combustion engine. Both the main tank 11 and secondary tank 12 are suspended at substantially the same height on a framework 15, which may for example be a vehicle framework. The relationship between the respective heights at which the secondary tank and main tank are situated is important for the satisfactory functioning of the arrangement according to the invention. This relationship is illustrated schematically in Figure 3.
In the arrangement illustrated in Figure 1 , fuel is transferred continuously from the ancillary space 13 to the fuel-consuming unit 14 via a fuel line 16 by a fuel pump, not shown, which is usually situated close to the fuel-consuming unit 14. To ensure that enough fuel is always available to the fuel-consuming unit, the pump is adapted to generate a fuel flow to the fuel-consuming unit 14 which is always greater than the latter's actual fuel consumption. This results in a certain quantity of fuel not being combusted in the unit. This unused surplus is returned to the ancillary space 13 via a return line 17.
At an appropriate position 19 along it, the return line 17 divides into two, or in certain cases more, mutually parallel secondary return lines 18 each leading to the ancillary space 13. The number of secondary return lines 18 corresponds to the total number of tanks, comprising the secondary tanks 12 plus the main tank 1 1, which form part of the arrangement. In the present case, this means two secondary return lines. A venturi tube 20 is arranged along each secondary return line 18. The venturi tube 20 illustrated schematically in Figure 2 and described in more detail later in the description is used to transfer fuel from the main tank 1 1 and the secondary tank 12 to the ancillary space 13 in the main tank 1 1.
A transfer line 22 which extends from the bottom of the respective tank to any of the venturi tubes 20 is connected near the tank bottom or at the tank's lowest point to ensure that as much fuel as possible is transferred from the tank. Fuel tanks are usually provided with a bottom plug for cleaning out accumulated litter in them and for draining off any water present in them, and the existing aperture is with advantage used to connect the transfer line 22.
To further guide the contents of the tanks to the transfer line 22 in the bottom of the tank, the tank bottom may be provided with one or more surfaces sloping towards the outlet to guide all of the fuel in the tank to the mouth of the transfer line 22.
The quantity of fuel transferred from the main tank 1 1 and the secondary tank 12 to the ancillary space 13 is always greater than that consumed by the fuel-consuming unit 14, which means that when the arrangement is in use the fuel level in the ancillary space 13 will always be higher than the level in the main tank 1 1, ensuring a reliable supply of fuel from the ancillary space 13 to the unit 14. The fuel is drawn from the lower part of the ancillary space 13 to ensure that the inlet to the line 16 is always below the fuel level in the ancillary space 13, even if the latter is not completely full of fuel. The top edge of the ancillary space 13 is open to the main tank 1 1, so when the fuel level in the ancillary space 13 reaches the aperture, any surplus fuel will drain back to the main tank 1 1 by flowing over the edge of the boundary wall 25.
The ancillary space 13 constitutes only a small part of the main tank 1 1. The size of the ancillary space 13 in relation to the main tank 1 1 depends on the expected fuel requirement of the fuel-consuming unit 14 and on the volumes available for tanks.
When the fuel-consuming unit 14 is not being used and the relating systems are closed off, the fuel level in the ancillary space 13 drops until the respective surface levels in the main tank 1 1, the secondary tank 12 and the ancillary space 13 are equalised by siphon action through the connecting transfer line 22.
A venturi tube 20 and the flow through it during use are illustrated schematically in Figure 2. The venturi tube comprises a longitudinal passage 21 , the cross-sectional area of which near the centre of the venturi tube is reduced relative to the cross-sectional area at the venturi tube's inlet and subsequently increases again to substantially the same as at the inlet. The reduction in cross-sectional area results in an increase in the flow velocity in this section of the passage 21, thereby inducing a suction in the transfer line 22 connected to the passage 21 near to the point where the cross-sectional area reaches its minimum.
Figure 3 illustrates a cross-sectional view through the arrangement in Figure 1 to illustrate the relationship between the respective heights at which the tanks are situated. The secondary tank 12 and the main tank 11, in which the section runs through the ancillary space 13, are each suspended on the framework 15 by
suspension devices 26. Figure 3 illustrates conceivable fuel levels in the tanks during operation. The fuel is transferred continuously to the ancillary space 13, resulting in the higher fuel level in this space.
A drainage hose 23 runs between the bottom of the main tank and the bottom of the secondary tank to prevent the main tank 1 1 being overfilled. At the connection of the drainage hose 23 in the secondary tank 12, a pipe 24 is connected to the drainage hose 23 in such a way that the latter's mouth in the secondary tank 12 is moved slightly upwards from the bottom of the secondary tank. The purpose of this pipe 24 is to ensure that, as long as the fuel level in the main tank 11 is above the height at which the mouth of the pipe is situated, fuel will drain continuously from the main tank 1 1 to the secondary tank 12 via the drainage hose. However, if the fuel level in the main tank drops below the mouth of the pipe, no further fuel will drain back to the secondary tank 12 and all of the fuel in the secondary tank 12 will be transferred to the ancillary space 13 in the main tank 1 1. If for any reason the tanks 1 1 and 12 are arranged at different heights, the length of the pipe has then to be adjusted to ensure that the transfer takes place as intended. Figure 3 does not show all of the lines etc. which form part of the arrangement in Figure 1.
Although described above on the basis of some exemplifying embodiments, the invention is not limited thereto but is defined on the basis of the following claims.

Claims

1. An arrangement for transferring fuel from one or more secondary tanks (12) to a main tank (1 1), which arrangement comprises:
- a main tank (1 1) comprising an ancillary space (13), both of them intended to contain fuel, which fuel is transferred from the ancillary space (13) to a fuel- consuming unit (14);
- one or more secondary tanks (12) intended to contain fuel;
- a venturi tube (20) situated close to the main tank (1 1) and each of the secondary tanks (12);
- a return line (17) intended to lead surplus fuel back from the fuel-consuming unit (14) to the main tank (11), which return line (17) is divided into as many secondary return lines (18) as the total number of tanks, comprising secondary tanks (12) and the main tank (1 1);
which transfer of fuel from the respective secondary tanks (12) and the main tank (1 1) to the ancillary space (13) takes place by means of venturi tubes (20) arranged along the secondary return lines (18), and a transfer line (22) which extends from each of the secondary tanks (12) and the main tank (11) to the venturi tube (10), where it connects to the secondary return line (18), so that the return flow from the fuel-consuming unit (14) is used to transfer fuel, by means of the venturi tube (20), from the secondary tanks (12) and the main tank (1 1) to the ancillary space (13).
2. An arrangement according to claim 1, characterised in that the ancillary space (13) in the main tank (1 1) takes the form of a delineated space provided with drainage to return fuel from the ancillary space (13) to the main tank (11) when the ancillary space (13) is overfilled.
3. An arrangement according to claim 1 or 2, characterised in that the ancillary space (13) is separated from the main tank (1 1) by a wall (25) comprising an aperture situated in the upper part of the ancillary space (13) and of the main tank (1 1).
4. An arrangement according to claim 1 or 2, characterised in that each secondary tank (12) and the main tank (1 1) comprise a bottom surface in which a transfer line (22) is connected.
5. An arrangement according to any of the above claims, characterised in that a drainage hose (23) runs between the bottom of the main tank and the bottom of at least one secondary tank.
6. An arrangement according to claim 5, characterised in that the main tank (1 1) and the respective secondary tanks (12) are arranged at substantially the same height, and a pipe (24) extends from the connection of the drainage hose or drainage hoses (23) in the bottom surface of the secondary tank or secondary tanks (12) such that the mouth of the drainage hose (23) is situated above the bottom surface.
7. An arrangement according to any of the above claims, characterised in that the arrangement comprises a main tank (1 1) and a secondary tank (12) and that the return line (17) is divided into two secondary return lines (18).
8. A vehicle comprising at least one arrangement according to any of claims 1 to 7.
PCT/SE2010/051330 2009-12-08 2010-12-02 Arrangement for fuel supply to an engine WO2011071440A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2012539855A JP5642800B2 (en) 2009-12-08 2010-12-02 Device for supplying fuel to the engine
BR112012013290A BR112012013290A8 (en) 2009-12-08 2010-12-02 fuel supply arrangement for an engine
US13/500,315 US20120199224A1 (en) 2009-12-08 2010-12-02 Arrangement for fuel supply to an engine
CN201080048703.1A CN102596624B (en) 2009-12-08 2010-12-02 For the device to driving engine supply fuel
RU2012128591/11A RU2501671C1 (en) 2009-12-08 2010-12-02 Engine fuel feed device
EP10836284.9A EP2509815B1 (en) 2009-12-08 2010-12-02 Arrangement for fuel supply to an engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0950946-4 2009-12-08
SE0950946A SE534380C2 (en) 2009-12-08 2009-12-08 Device for supplying fuel to an engine

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WO2011071440A1 true WO2011071440A1 (en) 2011-06-16

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US (1) US20120199224A1 (en)
EP (1) EP2509815B1 (en)
JP (1) JP5642800B2 (en)
KR (1) KR20120112486A (en)
CN (1) CN102596624B (en)
BR (1) BR112012013290A8 (en)
RU (1) RU2501671C1 (en)
SE (1) SE534380C2 (en)
WO (1) WO2011071440A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3403864A1 (en) * 2017-05-18 2018-11-21 Ningbo Geely Automobile Research & Development Co. Ltd. A fuel ejector assembly for a vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9616798B2 (en) 2015-01-28 2017-04-11 Fuelie Systems, Inc. Portable fuel storage device
WO2019178315A1 (en) 2018-03-16 2019-09-19 Fuelie Systems, Inc. Fuel storage and dispensing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228176A1 (en) * 1985-12-24 1987-07-08 Ford Motor Company Limited Fuel tank equalizing system
EP0864458A1 (en) 1997-03-10 1998-09-16 Robert Bosch Gmbh Device for controlling the supply of fuel to a combustion engine
WO2002038409A1 (en) * 2000-11-08 2002-05-16 Kautex Textron Gmbh. & Co. Kg. Fuel tank
WO2008105721A1 (en) * 2007-02-26 2008-09-04 Scania Cv Ab Fuel tank arrangement for a vehicle

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023A (en) * 1845-05-01 Hijbst
US3390698A (en) * 1966-09-07 1968-07-02 Carmichael Thomas Reserve fuel supply systems
US4288086A (en) * 1980-01-22 1981-09-08 International Harvester Company Fuel tank arrangement for a tractor
US4951699A (en) * 1989-11-06 1990-08-28 Chrysler Corporation Fuel transfer system with aspirator
JPH0414762U (en) * 1990-05-28 1992-02-06
DE4301762C2 (en) * 1993-01-23 1995-05-04 Daimler Benz Ag Tank system
RU2089408C1 (en) * 1995-08-09 1997-09-10 Акционерное общество открытого типа "Ульяновский автомобильный завод" Vehicle fuel tank system (design versions)
JPH11245677A (en) * 1998-03-05 1999-09-14 Hitachi Constr Mach Co Ltd Fuel tank device for construction machine
EP0979939B1 (en) * 1998-08-10 2006-10-04 Siemens Aktiengesellschaft Fuel supply system
DE60006408T2 (en) * 1999-09-21 2004-09-09 Federal-Mogul Corp., Southfield FUEL FEED PUMP AND CONTROL PROCEDURE
US6371153B1 (en) * 2001-03-16 2002-04-16 Robert Bosch Corporation Dual fuel delivery module system for multi-chambered or multiple automotive fuel tanks
RU20283U1 (en) * 2001-05-08 2001-10-27 ООО "Техносервис-Н" FUEL SUPPLY SYSTEM FOR VEHICLE ENGINE
JP3820949B2 (en) * 2001-10-02 2006-09-13 日産自動車株式会社 Fuel supply device with transfer pump
DE10238237A1 (en) * 2002-08-21 2004-03-04 Daimlerchrysler Ag Motor vehicle fuel tank has feed pipe for catch pot also forming feed pipe for suction pump
US6907899B2 (en) * 2003-01-22 2005-06-21 Visteon Global Technologies, Inc. Saddle tank fuel delivery system
DE10318050A1 (en) * 2003-04-17 2004-11-04 Siemens Ag Fuel tank for motor vehicle comprises sealed gush pots which have a mechanism for limiting the maximum pressure
KR100534789B1 (en) * 2003-10-24 2005-12-07 기아자동차주식회사 Fuel tank system of vehicle
HUP0400276A2 (en) * 2004-01-27 2005-10-28 Visteon Global Technologies, Inc. A jet pump with improved start-up properties and fuel delivery system equipped with such jet pump
JP4799079B2 (en) * 2005-08-23 2011-10-19 Ｕｄトラックス株式会社 Liquid tank device
JP2007231764A (en) * 2006-02-28 2007-09-13 Denso Corp Fuel supply device
FR2901190B1 (en) * 2006-05-16 2009-01-23 Inergy Automotive Systems Res LIQUID TANK AND METHOD FOR MANUFACTURING THE SAME
US7506636B2 (en) * 2007-02-06 2009-03-24 Denso International America, Inc. Check value placement in an electronic returnless fuel system
JP4575464B2 (en) * 2007-03-26 2010-11-04 本田技研工業株式会社 Vehicle fuel supply system
JP4980936B2 (en) * 2008-01-10 2012-07-18 トヨタ自動車株式会社 Fuel tank structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228176A1 (en) * 1985-12-24 1987-07-08 Ford Motor Company Limited Fuel tank equalizing system
EP0864458A1 (en) 1997-03-10 1998-09-16 Robert Bosch Gmbh Device for controlling the supply of fuel to a combustion engine
WO2002038409A1 (en) * 2000-11-08 2002-05-16 Kautex Textron Gmbh. & Co. Kg. Fuel tank
WO2008105721A1 (en) * 2007-02-26 2008-09-04 Scania Cv Ab Fuel tank arrangement for a vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2509815A4

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3403864A1 (en) * 2017-05-18 2018-11-21 Ningbo Geely Automobile Research & Development Co. Ltd. A fuel ejector assembly for a vehicle
CN110651115A (en) * 2017-05-18 2020-01-03 宁波吉利汽车研究开发有限公司 Fuel injector assembly for a vehicle
US10895228B2 (en) 2017-05-18 2021-01-19 Ningbo Geely Automobile Research & Development Co. Fuel ejector assembly for a vehicle

Also Published As

Publication number Publication date
KR20120112486A (en) 2012-10-11
RU2501671C1 (en) 2013-12-20
BR112012013290A8 (en) 2018-06-26
US20120199224A1 (en) 2012-08-09
BR112012013290A2 (en) 2016-03-01
EP2509815A4 (en) 2016-02-17
JP2013511650A (en) 2013-04-04
SE0950946A1 (en) 2011-06-09
CN102596624A (en) 2012-07-18
JP5642800B2 (en) 2014-12-17
CN102596624B (en) 2015-12-16
EP2509815A1 (en) 2012-10-17
EP2509815B1 (en) 2017-07-12
SE534380C2 (en) 2011-08-02

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