WO2018135989A1 - Système d'alimentation en carburant et véhicule terrestre - Google Patents

Système d'alimentation en carburant et véhicule terrestre Download PDF

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Publication number
WO2018135989A1
WO2018135989A1 PCT/SE2018/050018 SE2018050018W WO2018135989A1 WO 2018135989 A1 WO2018135989 A1 WO 2018135989A1 SE 2018050018 W SE2018050018 W SE 2018050018W WO 2018135989 A1 WO2018135989 A1 WO 2018135989A1
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WO
WIPO (PCT)
Prior art keywords
fuel
fuel tank
valve
tank
pump
Prior art date
Application number
PCT/SE2018/050018
Other languages
English (en)
Inventor
Florin Stefan POCOL
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 DE112018000251.9T priority Critical patent/DE112018000251T5/de
Publication of WO2018135989A1 publication Critical patent/WO2018135989A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • 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
    • 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
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • 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
    • B60K2015/03125—Suction lines for dual 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
    • B60K2015/03131—Systems for filling dual 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
    • 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
    • B60K2015/03144—Fluid connections between the tanks
    • 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
    • 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
    • B60Y2200/142—Heavy duty trucks

Definitions

  • the present invention relates to a fuel supply arrangement for a ground based vehicle and a ground based vehicle comprising a combustion engine and a fuel supply arrangement.
  • Fuel supply arrangements comprising multiple fuel tanks are common especially for heavy duty vehicles such as trucks. Multiple fuel tanks are used to prolong the possible driving range of the vehicle. Fuel supply arrangements comprising multiple fuel tanks usually comprise a fuel pump configured to pump fuel from a first fuel tank of the multiple fuel tanks. Further fuel tanks of the multiple fuel tanks are fluidically connected to the first fuel tank via ducts. During driving, fuel is pumped from the first fuel tank and as the fuel level in the first fuel tank decreases, fuel flows via the ducts from the further fuel tank to the first fuel tank by the communicating vessels principle.
  • the document WO 2013084018 A1 relates to a vehicle fuel tank arrangement for a fuel comprising at least a first fluid and a second fluid.
  • the tank arrangement comprises a tank, a partition wall arranged inside the tank in order to create at least a first compartment for storing the first fluid and a second compartment for storing the second fluid.
  • the position of the partition wall inside the tank can be changed to set the volume of the first compartment, respectively the second compartment, to a predetermined value.
  • the suction of air may be caused by fuel splash in one of the fuel tanks.
  • Such suction of air may cause problems and malfunctions of the fuel supply arrangement as well as a combustion engine connected thereto.
  • suction of air may be harmful for the pump.
  • a fuel supply arrangement for a ground based vehicle comprising a first fuel tank comprising a first fuel tank connection, at least a second fuel tank comprising a second fuel tank connection, a first pump, and a fuel vessel comprising an outlet, a first inlet and at least a second inlet.
  • the first inlet is fluidically connected to the first fuel tank connection.
  • the second inlet is fluidically connected to the second fuel tank connection.
  • the first pump is fluidically connected to the outlet of the fuel vessel, and the first pump is configured to pump fuel from the first fuel tank and the at least second fuel tank via the fuel vessel.
  • the first pump is configured to pump fuel from the first fuel tank and the at least second fuel tank via the fuel vessel, the risk of suction of air is reduced. This since the first pump will pump fuel directly from the first fuel tank and the at least second fuel tank via the fuel vessel, instead of relying on the communicating vessels principle. Thereby, problems and malfunction of the fuel supply arrangement, as well as a combustion engine connected thereto, can be avoided. In addition, damages of the pump can be avoided.
  • the first pump and the fuel vessel are arranged at the first fuel tank.
  • a fuel supply arrangement is provided facilitating service and maintenance of the fuel supply arrangement.
  • routing of pipes fluidically connecting the first pump to the fuel vessel and the fuel tanks may be facilitated.
  • the fuel supply arrangement further comprises a buffer tank, wherein the first pump is configured to pump fuel from the first fuel tank and the at least second fuel tank to the buffer tank.
  • a fuel supply arrangement is provided in which air and/or water, if pumped from any of the fuel tanks, can be handled in the buffer tank.
  • the fuel supply arrangement further comprises a tank module, wherein the first pump, the fuel vessel and the buffer tank are arranged in the tank module.
  • a fuel supply arrangement is provided which easily can be maintained. Further, routing of pipes fluidically connecting the first pump, the fuel vessel and the buffer tank may be facilitated.
  • the fuel supply arrangement further comprises a second pump arranged to pump fuel from the buffer tank to a high-pressure pump of the ground based vehicle.
  • a second pump arranged to pump fuel from the buffer tank to a high-pressure pump of the ground based vehicle.
  • flow of fuel to the high-pressure pump is ensured, even if some air or water is sucked from one of the first fuel tank, or the at least second fuel tank, since the second pump is configured to pump fuel from the buffer tank.
  • reliability of the fuel supply arrangement is further improved since in case of any suction of air or water, the air or water sucked will be handled in the buffer tank.
  • the fuel supply arrangement further comprises a fuel level monitoring unit arranged to monitor a fuel level in the buffer tank, wherein the arrangement further comprises a control unit connected to the fuel level monitoring unit and the first pump, wherein the control unit is configured to keep the fuel level in the buffer tank above a predetermined threshold level by controlling pumping of the first pump.
  • a fuel supply arrangement is provided with even further improved reliability since a sufficient fuel level in the buffer tank can be ensured.
  • the fuel supply arrangement further comprises a first valve and at least a second valve, wherein the first valve is configured to close fluid connection through the first fuel tank connection in case a fuel level in the first fuel tank is below a threshold level, and wherein the at least second valve is configured to close fluid connection through the second fuel tank connection in case a fuel level in the second fuel tank is below a threshold level.
  • a fuel supply arrangement is provided in which the risk of suction of air is even further reduced since the first valve will close fluid connection through the first fuel tank connection in case a fuel level in the first fuel tank is below the threshold level, and the second valve will close fluid connection through the second fuel tank connection in case a fuel level in the second fuel tank is below a threshold level. Accordingly, a fuel supply arrangement is provided with even further improved reliability.
  • the first valve and the at least second valve each comprises an electrical actuator, a valve body and a valve seat, and wherein the electrical actuator is connected to the valve body and is arranged to control the position of the valve body relative the valve seat between an open position and a closed position to control fluid connection through the respective first and at least second fuel tank connection.
  • the electrical actuator is connected to the valve body and is arranged to control the position of the valve body relative the valve seat between an open position and a closed position to control fluid connection through the respective first and at least second fuel tank connection.
  • the first valve is arranged in the first fuel tank and the at least second valve is arranged in the at least second fuel tank, wherein the first valve and the at least second valve each comprises a float and a switch, wherein the float is connected to the switch and is arranged to actuate the switch in case a fuel level in the fuel tank, is below a threshold level, and wherein the electrical actuator is connected to the switch and is arranged to, upon actuation of the switch, control the position of the valve body to the closed position.
  • a fuel supply arrangement is provided with even further improved reliability since closure of a fluid connection is ensured through a fuel tank connection of a fuel tank about to become empty.
  • the arrangement further comprises a control unit connected to the electrical actuators of the first valve and the at least second valve, wherein one of the first fuel tank and the at least second fuel tank comprises a fuel tank inlet provided with a filler lid movably arranged at the fuel tank inlet between an open position and a closed position, wherein the arrangement further comprises a sensor connected to the control unit, wherein the sensor is arranged to detect the position of the filler lid, and wherein the control unit is configured to, in case the filler lid is moved to the open position, control the first and the at least second valves, being in a closed position to an open position.
  • a fuel supply arrangement is provided facilitating filling of the first fuel tank and the at least second fuel tank, since when the filler lid is moved to the open position, any of the first and the at least second valves, being in a closed position will be controlled to the open position.
  • the first fuel tank and the at least second fuel tank can be filled simply by filling one of the first fuel tank and the at least second fuel tank via the fuel tank inlet.
  • the valve seat is frustoconical and wherein a surface of the valve body arranged to abut against the valve seat is convex.
  • a fuel tank is about to become empty, the risk is increased that particles in the fuel becomes trapped between the valve body and the valve seat.
  • the valve seat is frustoconical and since the surface of the valve body arranged to abut against the valve seat is convex, such risk is reduced. Accordingly, a fuel supply arrangement is provided with even further improved reliability since the risk is reduced that any particles in the fuel is hindering a fully closure of the respective valve.
  • each fuel tank comprises a partition compartment arranged at a bottom of respective fuel tank and wherein each valve is arranged in a respective partition
  • the object is achieved by a ground based vehicle comprising a combustion engine and a fuel supply arrangement according to some embodiments, wherein the fuel supply arrangement is configured to supply fuel to the combustion engine of the ground based vehicle.
  • the ground based vehicle comprises a fuel supply arrangement according to some embodiments being configured to supply fuel to the combustion engine of the ground based vehicle, a ground based vehicle is provided having conditions for a reliable operation of the combustion engine.
  • Fig. 1 schematically illustrates a fuel supply arrangement for a ground based vehicle, according to some embodiments
  • Fig. 2 schematically illustrates a first fuel tank of a fuel supply arrangement, according to some embodiments.
  • Fig. 3a schematically illustrates a valve in an open position, according to some
  • Fig. 3b schematically illustrates the valve illustrated in Fig. 3a in a closed position
  • Fig. 4 illustrates a ground based vehicle comprising a combustion engine and a fuel supply arrangement, according to some embodiments.
  • Fig. 1 schematically illustrates a fuel supply arrangement 1 for a ground based vehicle.
  • the fuel supply arrangement 1 comprises a first fuel tank 5 comprising a first fuel tank connection 7, a second fuel tank 9 comprising a second fuel tank connection 1 1 , and a third fuel tank 10 comprising a third fuel tank connection 12.
  • the fuel supply arrangement 1 comprises multiple fuel tanks 5, 9, 10, in the illustrated embodiments, three fuel tanks 5, 9, 10.
  • the fuel supply arrangement 1 may comprise another number of fuel tanks than three, for example two, four, five, six, seven eight, etc., where each tank is provided with a fuel tank connection.
  • the fuel supply arrangement 1 further comprises a fuel vessel 15 comprising an outlet 17, a first inlet 19, a second inlet 21 , and a third inlet 22.
  • the first inlet 19 is fluidically connected to the first fuel tank connection 7 of the first fuel tank 5.
  • the second inlet 21 is fluidically connected to the second fuel tank connection 1 1 of the second fuel tank 9.
  • the third inlet 22 is fluidically connected to the third fuel tank connection 12 of the third fuel tank 10.
  • the fuel vessel 15 comprises one inlet 19, 21 , 22 per fuel tank 5, 9, 10.
  • the fuel vessel 15 comprises two inlets, and embodiments where the fuel supply arrangement 1 comprises four or more fuel tanks, the fuel vessel 15 comprises a number of inlets corresponding to the number of tanks, where a tank connection of each tank is fluidically connected to an inlet of the fuel vessel 15.
  • the fuel vessel 15 comprises an inner volume fluidically connected to the outlet 17 and to each of the inlets 19, 21 , 22.
  • the fuel vessel 15 illustrated in Fig. 1 comprises a circular cross section and may be referred to as a fuel rail, fuel canister, or similar. According to further embodiments, the fuel vessel 15 may comprise a square cross section, or the like. In still further embodiments, the fuel vessel 15 may be spherical.
  • the fuel supply arrangement 1 comprises a first pump 13 fluidically connected to the outlet 17 of the fuel vessel 15.
  • the first pump 13 is configured to pump fuel from the first fuel tank 5, the second fuel tank 9 and the third fuel tank 10 via the fuel vessel 15. Due to this arrangement, the first pump 13 causes an under-pressure in the inner volume of the fuel vessel 15 which is evenly distributed to each inlet 19, 21 , 22 of the fuel vessel 15. As a result, an essentially even flow rate of fuel from each fuel tank 5, 9, 10 through the fuel vessel 15 will be obtained.
  • the fuel supply arrangement 1 further comprises a buffer tank 23, wherein the first pump 13 is configured to pump fuel from the first fuel tank 5, the second fuel tank 9 and the third fuel tank 10 to the buffer tank 23 via a water separating filter 26.
  • the fuel supply arrangement 1 further comprises a second pump 25 arranged to pump fuel from the buffer tank 23 to a high- pressure pump 27 of the ground based vehicle.
  • the high-pressure pump 27 is arranged to increase pressure of fuel before the fuel is supplied to an internal combustion engine 57 of the ground based vehicle. Due to this arrangement, any water or air sucked from any of the tanks 5, 9, 10 by the first pump 13 is handled in the buffer tank 23.
  • the first pump 13, the second pump 25 and the high-pressure pump 27 may comprise a CAN-type pump.
  • the second pump 25 is arranged to pump fuel from the buffer tank 23 to a high-pressure pump 27 of the ground based vehicle via a fuel filter 28.
  • the fuel supply arrangement 1 may comprise more fuel filters, for example between the buffer tank 23 and the second pump 25.
  • Fig. 2 schematically illustrates a first fuel tank 1 of a fuel supply arrangement 1 , according to some embodiments.
  • the first pump 13 and the fuel vessel 15 are arranged at the first fuel tank 5.
  • the fuel supply arrangement 1 further comprises a tank module 24, wherein the first pump 13, the fuel vessel 15 and the buffer tank 23 are arranged in the tank module 24.
  • a fuel supply arrangement 1 is provided facilitating service and maintenance of the fuel supply arrangement 1 .
  • the fuel vessel 15 may be arranged under the first tank 5, e.g. under the tank module 24.
  • the fuel supply arrangement 1 further comprises a fuel level monitoring unit 29 arranged to monitor a fuel level in the buffer tank 23.
  • the fuel supply arrangement 1 further comprises a control unit 31 connected to the fuel level monitoring unit 29 and the first pump 13.
  • the control unit 31 is configured to keep the fuel level in the buffer tank 23 above a predetermined threshold level by controlling pumping of the first pump 13 on the basis of the fuel level in the buffer tank 23 monitored by the fuel level monitoring unit 29. Thereby, a sufficient fuel level in the buffer tank 23 is ensured and suction of air of the second pump 25 can be avoided.
  • the first pump 13 is configured to pump fuel to the buffer tank 23 and the second pump 25 is configured to pump fuel from the buffer tank 23.
  • control unit 31 may also be connected to the second pump 25 and may be configured to control pumping thereof.
  • the control unit 31 may control pumping of the first pump 13 on the basis of pumping of the second pump 25 to keep the fuel level in the buffer tank 23 above a predetermined threshold level and may supplement such control on the basis of the monitored fuel level in the buffer tank 23.
  • the fuel supply arrangement 1 further comprises a first valve 33, a second valve 35 and a third valve 36.
  • the first valve 33 is arranged at the first fuel tank connection 7 of the first fuel tank 5 and is configured to close fluid connection through the first fuel tank connection 7 in case a fuel level in the first fuel tank 5 is below a threshold level.
  • the second valve 35 is arranged at the second fuel tank connection 1 1 of the second fuel tank 9 and is configured to close fluid connection through the second fuel tank connection 1 1 in case a fuel level in the second fuel tank 9 is below a threshold level.
  • the third valve 36 is arranged at the third fuel tank connection 12 of the third fuel tank 10 and is configured to close fluid connection through the third fuel tank connection 12 in case a fuel level in the third fuel tank 10 is below a threshold level.
  • the fuel tanks 5, 9, 10 comprises a valve 33, 35, 36 each at the respective fuel tank connection 7, 1 1 , 12 configured to close fluid connection therethrough in case the fuel level in the fuel tank 5, 9, 10 is below a threshold level.
  • each of the five fuel tanks comprises a valve at the fuel tank connection configured to close fluid connection therethrough in case the fuel level in the respective fuel tank is below a threshold level. Thereby, suction of air of the first pump 13 is avoided.
  • Fig. 3a schematically illustrates a first valve 33 in an open position, according to some embodiments.
  • Fig. 3b schematically illustrates the first valve 33 illustrated in Fig. 3a in a closed position.
  • the second and third valve 35, 36 illustrated in Fig. 1 may comprise the same type of valve with the layout of the valve as is illustrated in Fig. 3a and Fig. 3b.
  • the valve 33 illustrated in Fig. 3a and Fig. 3b can also be said to represent the second and/or third valve 35, 36.
  • the first valve 33 comprises an electrical actuator 37, a valve body 39 and a valve seat 41 .
  • the electrical actuator 37 is connected to the valve body 39 and is arranged to control the position of the valve body 39 relative the valve seat 41 between an open position, as illustrate in Fig. 3a, and a closed position, as illustrated in Fig. 3b, to control fluid connection through the first fuel tank connection 7.
  • the electrical actuator 37 may comprise an electro-mechanical actuator such as a solenoid.
  • the valve seat 41 is frustoconical and a surface 53 of the valve body 39 arranged to abut against the valve seat 41 is convex. Thereby, the risk is reduced that any particles in the fuel becomes trapped between the valve body 39 and the valve seat 41 thereby hindering a fully closure of the valve 33.
  • a greater cross section between the valve body 39 and the valve seat 41 is provided for a shorter stroke of the actuator 37. Therefore, less flow resistance through the valve 33 can be provided whilst using an electrical actuator 37 with a short stroke distance.
  • the valve body 39 is dome-shaped.
  • valve body 39 may comprise another shape, such as a shape where at least the surface 53 of the valve body 39 arranged to abut against the valve seat 41 is convex.
  • valve seat 41 may be convex and a surface 53 of the valve body 39 arranged to abut against the valve seat 41 may be frustoconical. Even though it may be more difficult to produce, the same advantages may be obtained with such a valve.
  • the valve 33 comprises a partition compartment 55 formed by partition walls 56 and a screen 58 in an upper portion of the partition compartment 55.
  • the screen 58 comprises a plurality of openings arranged to allow flow of fuel from the fuel tank through the screen 58 into the partition compartment 55.
  • the screen 58 may also function as a fuel filter hindering particles over a certain size to enter the partition compartment 55.
  • a valve 33 with the partition compartment 55 as illustrated in Fig. 3a and Fig. 3b is arranged at bottom of respective fuel tank 5, 9, 10, illustrated in Fig. 1 .
  • the valve 33 comprises a float and a switch 45.
  • the float 43 is connected to the switch 45 and is arranged to actuate the switch 45 in case a fuel level in the fuel tank 5, 9 is below a threshold level.
  • the threshold level is determined on the basis of a height of the partition walls 56 and of the size of the fuel tank. That is, if the fuel level in one of the fuel tanks becomes below the threshold level, i.e. below an upper edge of the partition walls 56, the float will sink and actuate the switch 45 as the fuel in the partition compartment 55 is pumped out of the partition compartment via the tank connection 7.
  • the electrical actuator 37 is connected to the switch 45 and is arranged to, upon actuation of the switch 45, control the position of the valve body 39 from the open position, as is illustrated in Fig. 3a, to the closed position, as is illustrated in Fig. 3b.
  • the first valve 33 is arranged in the first fuel tank 5
  • the second valve 35 is arranged in the second fuel tank 9
  • the third valve 36 is arranged in the third fuel tank 10. Therefore, if the fuel level in one of the fuel tanks becomes below the threshold level, the float will sink and actuate the switch and the electrical actuator will control the position of the valve body to the closed position. Thereby, suction of air in the first pump 13 is avoided.
  • the fuel supply arrangement 1 further comprises a control unit 31 connected to the electrical actuators of the respective valve 33, 35, 36 of the respective fuel tank 5, 9, 10, which in the illustrated embodiments are the first valve 33, the second valve 35 and the third valve 36.
  • the first fuel tank 5 comprises a fuel tank inlet 47 provided with a filler lid 49 movably arranged at the fuel tank inlet 47 between an open position and a closed position.
  • the fuel supply arrangement 1 further comprises a sensor 51 connected to the control unit 31 , wherein the sensor 51 is arranged to detect the position of the filler lid 49.
  • the control unit 31 is configured to, in case the filler lid 49 is moved to the open position, control the all of the valves, i.e. the first valve 33, the second valve 35 and the third valve 36 in the illustrated embodiments, being in a closed position to an open position. Thereby, during filling of the first tank 5, the fuel will flow through the first tank connection 7 to the other fuel tanks 9, 10 via the fuel vessel 15. Accordingly, a user can, due to this
  • the first fuel tank 5 comprises the fuel tank inlet 47 provided with the filler lid 49.
  • one of the other fuel tanks 9, 10 may comprise the fuel tank inlet 47 provided with the filler lid 49.
  • the filler lid 49 is illustrated as a filler cap.
  • the filler lid 49 comprises an inner lid inside the fuel tank inlet 47 being movably arranged at the fuel tank inlet 47 between an open position and a closed position.
  • the sensor 51 is arranged to detect the position of the inner lid.
  • the control unit 31 may comprise a calculation unit which may take the form of substantially any suitable type of processor circuit or microcomputer, e.g. a circuit for digital signal processing (digital signal processor, DSP), a Central Processing Unit (CPU), a processing unit, a processing circuit, a processor, an Application Specific Integrated Circuit (ASIC), a microprocessor, or other processing logic that may interpret and execute instructions.
  • a calculation unit may represent a processing circuitry comprising a plurality of processing circuits, such as, e.g., any, some or all of the ones mentioned above.
  • the control unit 31 may comprise a memory unit connected to a calculation unit of the control unit 31 which may provide the calculation unit with, for example, the stored programme code and/or stored data which the calculation unit needs to enable it to do calculations.
  • Control systems in modern vehicles generally comprise a communication bus system consisting of one or more communication buses for connecting a number of electronic control units (ECUs), or controllers, to various components on board the vehicle.
  • ECUs electronice control units
  • Such a control system may comprise a large number of control units and taking care of a specific function may be shared between two or more of them. Vehicles of the type here concerned are therefore often provided with significantly more control units than depicted in FIG. 1 , as one skilled in the art will surely appreciate.
  • Fig. 4 illustrates a ground based vehicle 3 comprising a combustion engine 57 and a fuel supply arrangement 1 according to some embodiments.
  • the fuel supply arrangement 1 is configured to supply fuel to the combustion engine 57 of the ground based vehicle 3.
  • the combustion engine 57 may comprise a diesel engine or a petrol engine.
  • the vehicle 3 illustrated in Fig. 4 is a truck.
  • the fuel supply arrangement 1 provided may be configured to supply fuel to a combustion engine 57 of another type of manned or unmanned vehicle for land based propulsion such as a lorry, a construction vehicle, a tractor, a car, etc.

Landscapes

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

Abstract

L'invention concerne un système d'alimentation en carburant (1) pour un véhicule terrestre (3). Le système d'alimentation en carburant (1) comprend un premier réservoir de carburant (5) comportant un premier raccord de réservoir de carburant (7), au moins un second réservoir de carburant (9) comportant un second raccord de réservoir de carburant (11), une première pompe (13) et une cuve de carburant (15). La cuve de carburant (15) comprend une sortie (17), une première entrée (19) et au moins une seconde entrée (21). La première entrée (19) est reliée de façon fluidique au premier raccord de réservoir de carburant (7), la seconde entrée (21) est reliée de façon fluidique au second raccord de réservoir de carburant (11), et la première pompe (13) est reliée de façon fluidique à la sortie (17) de la cuve de carburant (15). La première pompe (13) est configurée de sorte à pomper du carburant du premier réservoir de carburant (5) et dudit second réservoir de carburant (9) par le biais de la cuve de carburant (15). La présente invention concerne également un véhicule (3) comprenant un système d'alimentation en carburant (1).
PCT/SE2018/050018 2017-01-17 2018-01-11 Système d'alimentation en carburant et véhicule terrestre WO2018135989A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018000251.9T DE112018000251T5 (de) 2017-01-17 2018-01-11 Kraftstoffversorgungsanordnung und landgebundenes Fahrzeug

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1750036A SE540432C2 (en) 2017-01-17 2017-01-17 Fuel supply arrangement and ground based vehicle
SE1750036-4 2017-01-17

Publications (1)

Publication Number Publication Date
WO2018135989A1 true WO2018135989A1 (fr) 2018-07-26

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Application Number Title Priority Date Filing Date
PCT/SE2018/050018 WO2018135989A1 (fr) 2017-01-17 2018-01-11 Système d'alimentation en carburant et véhicule terrestre

Country Status (3)

Country Link
DE (1) DE112018000251T5 (fr)
SE (1) SE540432C2 (fr)
WO (1) WO2018135989A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409931A (en) * 1943-06-04 1946-10-22 Curtis Pump Co Fuel system
US4306579A (en) * 1978-07-17 1981-12-22 Kelly Michael J Multi-tank fuel control system
EP1529953A1 (fr) * 2003-11-05 2005-05-11 Bombardier Transportation GmbH Dispositif d'alimentation en carburant pour véhicule
WO2011162682A1 (fr) * 2010-06-22 2011-12-29 Scania Cv Ab Système de carburant destiné à l'injection d'un mélange de carburants dans un moteur à combustion
WO2013084018A1 (fr) * 2011-12-08 2013-06-13 Renault Trucks Structure de réservoir de carburant de véhicule et procédé pour gérer l'alimentation en carburant d'un véhicule
US20160069309A1 (en) * 2014-09-09 2016-03-10 Kubota Corporation Diesel work vehicle with duel fuel tanks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409931A (en) * 1943-06-04 1946-10-22 Curtis Pump Co Fuel system
US4306579A (en) * 1978-07-17 1981-12-22 Kelly Michael J Multi-tank fuel control system
EP1529953A1 (fr) * 2003-11-05 2005-05-11 Bombardier Transportation GmbH Dispositif d'alimentation en carburant pour véhicule
WO2011162682A1 (fr) * 2010-06-22 2011-12-29 Scania Cv Ab Système de carburant destiné à l'injection d'un mélange de carburants dans un moteur à combustion
WO2013084018A1 (fr) * 2011-12-08 2013-06-13 Renault Trucks Structure de réservoir de carburant de véhicule et procédé pour gérer l'alimentation en carburant d'un véhicule
US20160069309A1 (en) * 2014-09-09 2016-03-10 Kubota Corporation Diesel work vehicle with duel fuel tanks

Also Published As

Publication number Publication date
SE540432C2 (en) 2018-09-18
DE112018000251T5 (de) 2019-09-12
SE1750036A1 (en) 2018-07-18

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