WO2017182180A1 - Dispositif et procédé pour faire varier la pression dans un réservoir de carburant - Google Patents

Dispositif et procédé pour faire varier la pression dans un réservoir de carburant Download PDF

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Publication number
WO2017182180A1
WO2017182180A1 PCT/EP2017/054313 EP2017054313W WO2017182180A1 WO 2017182180 A1 WO2017182180 A1 WO 2017182180A1 EP 2017054313 W EP2017054313 W EP 2017054313W WO 2017182180 A1 WO2017182180 A1 WO 2017182180A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
fuel tank
tank
pressure
value
Prior art date
Application number
PCT/EP2017/054313
Other languages
German (de)
English (en)
Inventor
Lucian Eppel
Michael Kuehn
Thomas Herges
Roland Kurz
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2017182180A1 publication Critical patent/WO2017182180A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/18—Indicating, recording or alarm devices actuated electrically
    • 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
    • B60K2015/03171—Expansion tanks

Definitions

  • the present invention relates to an apparatus and a method for changing a pressure in a fuel tank and in particular for
  • the present invention relates to an apparatus and a method for determining a level of a fuel tank. For environmental reasons it is necessary to have a leak in one
  • Fuel tank is detected as soon as possible. It is known that an external air pump, which is operated by means of an electric motor, promotes air in the fuel tank, there to achieve a pressure increase. If the pressure does not rise to the expected extent, there is a leak in the fuel tank. This system has proven itself in principle, but it is necessary, an external air pump with drive to increase the pressure in
  • 027 738 A1 in which a monitoring of a fuel level by means of a tank capacitor suggests that has two spaced apart and extending over the maximum level height of the fuel tank condenser electrodes.
  • the prior art uses two separate systems to determine a leak and a level in a fuel tank.
  • the device according to the invention is very simple and also uses partly already existing in the fuel tank devices, which can be used in particular for leak detection with. This is inventively achieved in that the device comprises an expansion tank, which is set by a change in volume of the container volume, a pressure change in
  • Expansion tank is understood a container which can both increase its volume as well as downsize.
  • the device comprises a connecting line, which connects the expansion tank with a fuel pump.
  • the fuel pump is present on or in the fuel tank anyway and according to the invention for changing the volume of
  • the device comprises an extendable and retractable hydraulic cylinder, by means of which the
  • volume change of the expansion tank is effected. This allows a very robust and maintenance-free operation.
  • a pressure in a fuel tank can be changed and used for a variety of functions.
  • the expansion tank is formed such that the volume of the expansion tank by the introduced fuel to a
  • the device comprises a hydraulic translator, which with a low
  • Fuel quantity has a large displacement.
  • the expansion tank comprises a housing which can change a housing volume and surrounds the hydraulic cylinder.
  • the housing comprises a first and a second housing part, which are sealed by means of a flexible element, for example a diaphragm or a bellows, or an O-ring.
  • the expansion tank is arranged in the fuel tank.
  • Expansion tank arranged outside the fuel tank. As a result, a large filling volume of the fuel tank can be maintained.
  • the device further preferably comprises a shut-off valve, which is arranged in the connecting line from the fuel pump to the expansion tank.
  • the invention comprises a throttle device, which in the connecting line between the fuel pump and the
  • Expansion tank is arranged.
  • Throttle device allow during operation in a fuel delivery a rapid pressure build-up in the fuel system, since the connection to the expansion tank can be shut off by means of the check valve or limited by the throttle device in the pressure build-up.
  • the device comprises a return element, which resets the expansion tank in an initial position.
  • Return element is particularly preferably a spring, which is preferably arranged in the expansion tank.
  • the device preferably comprises a fuel pump.
  • the device is configured to determine a leak in the fuel tank.
  • the device preferably comprises a pressure sensor for determining a pressure in the fuel tank and a control unit.
  • the control unit is configured to compare a first pressure value with a second pressure value, wherein the first pressure value is determined when the fuel pump is not operating and the second pressure value is determined after a predetermined period of time during which the fuel pump has been operated.
  • the control unit is further configured to determine a difference value between the second and the first pressure value and, if the difference value deviates from a predetermined threshold value, to determine a leakage.
  • control unit is configured to compare a first pressure value with a second pressure value and the second pressure value with a compare third pressure value.
  • a comparison of the first pressure value with the second pressure value for a gross leak detection is usable and a comparison of the second pressure value with the third pressure value for a
  • Fine leak detection can be used. Here are preferred as well
  • Fine leak detection can in particular also be concluded from an absolute value of the difference value between the second and the third pressure value to an actual size of the leak.
  • the expansion tank is arranged by a
  • the control unit calculates a difference value between the second and the first pressure value, wherein a leak is detected when falling below a predetermined threshold value. Namely, if a leak in the fuel tank is present, no or only a slight increase in pressure in the fuel tank will be due to an increase in volume of the expansion tank, as the gases contained in the fuel tank and / or fuel leak through the leak.
  • the device comprises a pressure sensor for determining pressure values in the fuel tank and a control unit. The control unit is set up to compare a first pressure value with a second pressure value, wherein the first pressure value is determined when the fuel pump is not operated and the second pressure value is determined after a predetermined time has elapsed
  • Period of time during which the fuel pump was operated is determined.
  • the control unit is further configured to determine a difference value between the second pressure value and the first pressure value and to compare the difference value with a stored reference value.
  • Each reference value is assigned a level of the fuel tank, so that the level of the fuel tank can be determined in dependence on the difference value.
  • Fuel tank also a level can be determined.
  • control unit is designed such that first a check for a leak is performed and then a level is determined.
  • the control unit can thus with a single Device two functions are carried out in the fuel tank area. As a result, large cost savings, especially for vehicles, can be realized.
  • the housing preferably has a connecting line to the atmosphere.
  • Volume change can be achieved in the fuel tank.
  • the expansion tank comprises a stop which limits a volume change of the tank volume.
  • the stop has a first and a second position, wherein in the first
  • the present invention relates to a method for checking a fuel tank for a leak.
  • the method comprises the steps of determining a first pressure value in the fuel tank, operating a fuel pump to change a volume of an expansion tank in the fuel tank, thereby changing a pressure in the fuel tank when there is no leak in the fuel tank, and determining a second pressure value in the fuel tank Fuel tank after a predetermined period of time in which the fuel pump has been operated. Subsequently, the first and the second pressure value are compared, in particular by means of a determination of a difference value, wherein in a case in which the first pressure value is equal to or substantially equal to the second pressure value, the difference value is zero or tends towards zero, which points to Leak in the fuel tank indicates.
  • a difference value between the first and second pressure values is a
  • predetermined threshold is exceeded or falls short, can be closed to a sealed fuel tank.
  • an overpressure or a negative pressure in the fuel tank occur.
  • Fuel is particularly preferably pumped by means of the fuel pump in the expansion tank to increase a volume of the expansion tank. If there is no leak in the fuel tank, a pressure in the fuel tank increases, whereby the pressure increase can then be detected.
  • the method according to the invention is particularly preferably carried out at each start or at each stop of an internal combustion engine. Furthermore, the present invention relates to a method for determining a
  • the method comprises the steps of determining a first pressure value in the fuel tank, operating a fuel pump to change a volume of one with the
  • Fuel tank in operatively connected expansion tank, whereby a pressure in the fuel tank changes when no leak in the fuel tank is present and determining a second pressure value in the fuel tank after a predetermined period of time, during which
  • Fuel pump was operated.
  • a difference value between the second and first pressure value can then be determined and the difference value compared with a stored reference value.
  • Each reference value is assigned a certain fill level of the fuel tank. Thus, the level can be determined and a
  • Output device are output. Thereby, a level of a fuel tank can be easily determined by using an expansion tank, so that a float or the like for
  • Determination of the level can be dispensed with.
  • the method for determining a filling level in the fuel tank is particularly preferably carried out after carrying out the method for checking a fuel tank for a leak. This is therefore possible because of
  • Figure 1 is a schematic representation of an apparatus for
  • Figure 2 is a schematic representation of an expansion tank of
  • FIG. 1 A first figure.
  • Figure 3 is a schematic representation of an apparatus for
  • Figure 4 is a schematic representation of an apparatus for
  • Figure 5 is a schematic representation of an apparatus for
  • the device 1 comprises an expansion tank 2, which is arranged in the fuel tank 7. in the
  • Fuel tank 7, liquid fuel 70 and a gas-filled area 71 is provided.
  • the expansion tank 2 can be seen in detail from FIG.
  • the expansion tank 2 comprises an extendable and retractable hydraulic cylinder 20, which in the
  • Expansion cylinder 2 is arranged and opposite the expansion tank 2 is completed.
  • the expansion tank 2 comprises a housing with a first housing part 21 and a second housing part 22, which are connected to one another via a flexible element 28. This allows the
  • Expansion tank 2 make a volume change.
  • the flexible element 28 is for example a bellows or a flexible
  • the expansion tank 2 further comprises a return element 23 which returns the expansion tank 2 to an initial position. Furthermore, a stop arrangement 24 is provided, which is arranged in this embodiment in the interior of the expansion tank 2.
  • the stop assembly 24 comprises a C-shaped piston, which abuts at two extreme positions on a retracted stop 25 and on an extended stop 26.
  • the device 1 further comprises, in addition to the expansion tank 2 a
  • Connecting line 3 which is a connection between the
  • Expansion tank 2 and a fuel line 8 produces.
  • the fuel line 8 is a line into which a fuel pump 6 fuel from the
  • Fuel tank 7 promotes to an internal combustion engine, not shown.
  • the reference numeral 72 denotes a tank lid, via which the
  • Fuel tank 7 can be filled.
  • the gas-filled region 71 is connected via a line 74 with an activated carbon filter 5.
  • a pressure sensor 4 for determining a pressure in the fuel tank 7 is further provided.
  • From the activated carbon filter 5 is another line 75 to a suction pipe, wherein in the line 75 a
  • Tank vent valve 14 is provided for releasing and closing the conduit 75.
  • a third line 76 continuing from the activated carbon filter 5 can be opened and closed by means of a changeover valve 13.
  • the device 1 comprises a control unit 10, which is connected to the pressure sensor 4 and the fuel pump 6.
  • the control unit 10 is further connected to an output device 1 1, for example, a display device in a vehicle.
  • the control unit 10 also controls this
  • the function of the device according to the invention is as follows. If it is to be checked whether there is a leak, first all accesses and outlets to and from the fuel tank 7 are closed. It should be noted that usually arranged in the lines valves and / or the
  • Tank cap 72 are in the closed position, so that not necessarily a control of the valves or the like is necessary. Possibly. the position of individual valves and / or the gas cap or the like can be detected by means of sensors and output to the control unit 10.
  • Fuel pump 6 is driven so that it promotes fuel in the fuel line 8. Since the check valve 9 is closed, the fuel is conveyed via the connecting line 3 to the expansion tank 2. As can be seen from FIG. 2, the connecting line 3 opens into the hydraulic cylinder 20. As a result, more and more fuel is conveyed into the hydraulic cylinder 20, so that the hydraulic cylinder 20 moves in the direction of the arrow A (see FIG. Since the hydraulic cylinder 20 bears against the inner wall of the second housing part 22, the second housing part 22 is moved relative to the first housing part 21, which is fixedly fixed to the connecting line 3. This increases an internal volume 29 of the expansion tank 2.
  • the connecting line 3 opens into the hydraulic cylinder 20.
  • Expansion tank 2 formed such that the inner volume 29 of the Expansion tank 2 increased by the introduced fuel by a predetermined difference volume, which is greater than the volume of the introduced fuel. Due to the expansion of the expansion tank 2, gas in the gaseous region 71 of the fuel tank 7 is compressed, so that a pressure increase takes place in the fuel tank 7. After a predetermined
  • the control unit 10 has thus received the first and the second pressure value.
  • the control unit 10 is now set up to carry out a comparison of the first and second pressure values with one another.
  • a difference value between the second and first pressure value is preferably determined, and when the difference value deviates from a predetermined threshold value, it is determined that a leakage is present. If, for example, a volume increase of the expansion tank 2 a determined
  • Pressure difference is below the threshold, a leak in the fuel tank 7 is present, so that a leak of the fuel tank can be detected. For example, if the pressure difference between the first and second pressure values were zero or near zero, it is likely that there is a very large leak.
  • Threshold for a leak so that it can be detected that the fuel tank 7 has no leak.
  • the obtained first and second pressure values can also be used to determine a fill level of the fuel tank 7.
  • the control unit 10 is additionally set up to compare the determined difference value between the second and first pressure value with a stored reference value.
  • a plurality of reference values are stored in a memory of the control unit.
  • each reference value corresponds to a predetermined level.
  • Reference values can be determined, for example, in the laboratory and then stored accordingly in the control unit 10. So everyone is Reference value assigned to a level of the fuel tank 7, so that in dependence on the difference value and a level determination of the fuel tank can be made.
  • the level can be
  • control unit in this case the two methods, d. H. checking for a leak and the
  • Determining a level simultaneously or can perform one after the other.
  • the two methods can also be performed while driving the vehicle.
  • FIG. 3 shows a device 1 according to a second exemplary embodiment of the invention.
  • the expansion tank 2 is arranged outside of the fuel tank 7 and via a connection opening in
  • Expansion tank 2 is designed as a bellows and with its one
  • the hydraulic cylinder 20 is within the
  • Fuel tank 7 is arranged and has a piston member 18, which is arranged in the hydraulic cylinder 20.
  • the piston member 18 is fixedly connected to a bottom of the expansion tank 2. So if the
  • Fuel pump 6 is operated, fuel is conveyed via the connecting line 3 in a region 19 on the piston member 18, so that the
  • Piston member 18 and coupled to the piston member 18 bottom of the expansion tank 2 in the direction of arrow C moves.
  • the expansion tank 2 which has a wall portion of a bellows 102, compressed and displaces a gas volume corresponding to the stroke of the expansion tank 2 in the fuel tank 7, so that a
  • Pressure increase in the gas-filled area 71 results.
  • This pressure increase can in turn, as described in the first embodiment, be used to determine a leak in the fuel tank and / or to determine a level of the fuel tank. After verification or level determination, the switching valve 13 is opened so that a tank ventilation is possible.
  • FIG. 4 shows a device 1 according to a third exemplary embodiment of the invention. In contrast to the first embodiment is the third
  • the connecting line 3 branches in the direction of flow in the fuel line 8 also after the check valve 9 (see Figure 4).
  • the device 1 is used in a fuel tank 7 of a vehicle, the fuel pump 6 is operated at a start of the internal combustion engine, first fuel must be supplied to the injectors, so that proper operation of the internal combustion engine is ensured. Only after the necessary pressure build-up in the fuel system has been reached can a check of the fuel tank 7 for a leak or a fill level determination be carried out.
  • FIG. 5 shows a device 1 according to a fourth exemplary embodiment of the invention.
  • the fourth exemplary embodiment In contrast to the third embodiment is the fourth
  • a throttle 16 is present.
  • the throttle 16 is designed such that no complete blocking of the connecting line 3 is possible. Nevertheless, the throttle 16 allows at a start of an internal combustion engine, that a sufficiently rapid pressure build-up in the fuel system is achieved because of the funded by the fuel pump 6
  • Fuel is first directed mainly into the fuel system and the throttle 16 only a minimum volume to the hydraulic cylinder 20 is performed. Only after the pressure has been sufficiently built up in the fuel system, a sufficient volume flow in the direction of the hydraulic cylinder 20 is made possible, so then the inventive method for
  • Leakage determination and for level determination can be performed.
  • shut-off valve 17 and a pressure accumulator function in the device 1 can be made possible, so that a pressure increase can be maintained over a defined period of time.
  • a device can be provided which, by using the fuel pump 6, enables a leakage check and a fill level determination.
  • no external air pump with separate electric drive is necessary, so that according to the invention a significantly simplified design is achieved.
  • no external medium must be pumped into the fuel tank 2, as for example in
  • expansion tank 2 is integrated directly into the fuel pump 6.
  • the fuel pump 6 can perform as a module comprising the pump function for the fuel and the leak check function and / or the fill level determination function. This allows a particularly cost-effective and space-saving realization of the invention. It should also be noted that when used in a vehicle, a diagnosis is possible even without starting the internal combustion engine. In this case, only the fuel pump 6 needs to be briefly actuated to build up pressure. After carrying out the method according to the invention, the fuel flows from the hydraulic cylinder 20 via gap leakage back into the
  • Fuel tank 7. The return flow is supported by the return element 23. Also, during the reset, the switching valve 13 is opened to allow a pressure reduction in the fuel tank 7.
  • the device according to the invention is also robust against contamination.
  • the expansion tank 2 can also be installed independently of a position in the fuel tank 7.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (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

Dispositif pour faire varier la pression dans un réservoir de carburant (7), comprenant un réservoir d'expansion (2) qui est conçu de sorte qu'une variation de volume du réservoir d'expansion (2) provoque une variation de pression dans le réservoir de carburant (7); une conduite de liaison (3) qui relie le réservoir d'expansion (2) à une pompe à carburant (6); et un cylindre hydraulique (20) qui peut être rentré ou sorti et au moyen duquel peut être produite la variation de volume du réservoir d'expansion (2).
PCT/EP2017/054313 2016-04-18 2017-02-24 Dispositif et procédé pour faire varier la pression dans un réservoir de carburant WO2017182180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016206478.9A DE102016206478A1 (de) 2016-04-18 2016-04-18 Vorrichtung und Verfahren zur Veränderung eines Drucks in einem Kraftstoffbehälter
DE102016206478.9 2016-04-18

Publications (1)

Publication Number Publication Date
WO2017182180A1 true WO2017182180A1 (fr) 2017-10-26

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Application Number Title Priority Date Filing Date
PCT/EP2017/054313 WO2017182180A1 (fr) 2016-04-18 2017-02-24 Dispositif et procédé pour faire varier la pression dans un réservoir de carburant

Country Status (2)

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DE (1) DE102016206478A1 (fr)
WO (1) WO2017182180A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019126414A1 (de) * 2019-09-30 2021-04-01 Kautex Textron Gmbh & Co. Kg Kraftstofftanksystem und Kraftfahrzeug
US11396856B2 (en) * 2018-10-15 2022-07-26 Aisan Kogyo Kabushiki Kaisha Fuel supply device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201813051D0 (en) 2018-08-10 2018-09-26 Agco Int Gmbh Variable capacity fuel tank

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1205953A (en) * 1967-03-14 1970-09-23 Smiths Industries Ltd Improvements in or relating to fuel supply tanks
EP0846586A2 (fr) * 1996-12-04 1998-06-10 Mannesmann VDO Aktiengesellschaft Bris-chambre destiné à être monté dans le réservoir de combustible d'un véhicule à moteur
DE29816811U1 (de) * 1998-09-21 1999-10-07 Wiedemann Helmut System zur Speicherung von brennbaren Kraftgasen wie z.B. Erdgas und Wasserstoff in einem volumenveränderlichen Speicher zum Zwecke der Betankung von mobilen Behältern für Kraftfahrzeugantriebe
DE102009027738A1 (de) 2008-12-15 2010-06-17 Robert Bosch Gmbh Vorrichtung zur Überwachung des Kraftstofffüllstands
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
DE102015007674A1 (de) * 2014-06-17 2015-12-17 Aisan Kogyo Kabushiki Kaisha Kraftstoffzuführungssystem

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1205953A (en) * 1967-03-14 1970-09-23 Smiths Industries Ltd Improvements in or relating to fuel supply tanks
EP0846586A2 (fr) * 1996-12-04 1998-06-10 Mannesmann VDO Aktiengesellschaft Bris-chambre destiné à être monté dans le réservoir de combustible d'un véhicule à moteur
DE29816811U1 (de) * 1998-09-21 1999-10-07 Wiedemann Helmut System zur Speicherung von brennbaren Kraftgasen wie z.B. Erdgas und Wasserstoff in einem volumenveränderlichen Speicher zum Zwecke der Betankung von mobilen Behältern für Kraftfahrzeugantriebe
DE102009027738A1 (de) 2008-12-15 2010-06-17 Robert Bosch Gmbh Vorrichtung zur Überwachung des Kraftstofffüllstands
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
DE102015007674A1 (de) * 2014-06-17 2015-12-17 Aisan Kogyo Kabushiki Kaisha Kraftstoffzuführungssystem

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11396856B2 (en) * 2018-10-15 2022-07-26 Aisan Kogyo Kabushiki Kaisha Fuel supply device
DE102019126414A1 (de) * 2019-09-30 2021-04-01 Kautex Textron Gmbh & Co. Kg Kraftstofftanksystem und Kraftfahrzeug

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