EP2927191A2 - Système et procédé de ravitaillement - Google Patents

Système et procédé de ravitaillement Download PDF

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Publication number
EP2927191A2
EP2927191A2 EP15164131.3A EP15164131A EP2927191A2 EP 2927191 A2 EP2927191 A2 EP 2927191A2 EP 15164131 A EP15164131 A EP 15164131A EP 2927191 A2 EP2927191 A2 EP 2927191A2
Authority
EP
European Patent Office
Prior art keywords
filling
refueling
refueling system
feed pump
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15164131.3A
Other languages
German (de)
English (en)
Other versions
EP2927191A3 (fr
Inventor
Michael Driftmeyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Walter Soehner GmbH and Co KG
Original Assignee
Walter Soehner GmbH and Co KG
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 Walter Soehner GmbH and Co KG filed Critical Walter Soehner GmbH and Co KG
Publication of EP2927191A2 publication Critical patent/EP2927191A2/fr
Publication of EP2927191A3 publication Critical patent/EP2927191A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/44—Filling nozzles automatically closing
    • B67D7/46—Filling nozzles automatically closing when liquid in container to be filled reaches a predetermined level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
    • B67D7/0476—Vapour recovery systems
    • B67D7/0478—Vapour recovery systems constructional features or components
    • B67D7/0488—Means for preventing the formation of condensation on, or for removing condensation from, vapour recovery lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
    • B67D7/28—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred with automatic means for reducing or intermittently interrupting flow before completion of delivery, e.g. to produce dribble feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/44—Filling nozzles automatically closing
    • B67D7/46—Filling nozzles automatically closing when liquid in container to be filled reaches a predetermined level
    • B67D7/465—Electrical probes sensing the level of the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/54—Filling nozzles with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour

Definitions

  • the present invention relates to a refueling system and a method for filling a tank with a liquid medium, in particular a urea solution.
  • urea solutions are used for purifying exhaust gases in commercial vehicles, in particular in trucks and buses.
  • AdBlue aqueous urea solutions
  • urea solutions are now increasingly being used, with the storage of urea solutions being carried out in additional tanks in the motor vehicle.
  • Refueling takes place either via commercially available canisters or, as with fuel, at dedicated urea fueling stations.
  • the delivery of urea solutions via special fuel pumps will increase in the future, as it is more environmentally friendly and cheaper. Due to the chemical properties of urea solutions, special requirements are to be placed on the tank systems, so that the filling systems known from the field of fuel can not be readily adopted.
  • urea solutions crystallize and the crystals can lead to disturbances.
  • the tank facilities should be designed so that urea solutions do not reach areas outside the filling pipe.
  • refueling should be easy and quick.
  • An embodiment of a filling device can be designed so that the air across flows to the longitudinal axis of the filling tube, ie either at right angles or obliquely to the longitudinal axis.
  • the flow path of the extracted air is initially extended, so that liquid components tend to remain in an area close to the suction opening.
  • these front areas are easier to clean, the risk of disruption by urea crystals can be reduced.
  • the suction channel is preferably delimited inwards through the filling tube and outwardly through a wall element surrounding the filling tube at least in sections.
  • the wall element is designed as a bushing, which extends at least over the length of the at least one air guide element.
  • the air guide element is provided on its side facing the filling tube on a carrier element, wherein the carrier element has a passage for the filling tube.
  • the air guide element and the carrier element are preferably integrally formed from a material resistant to the liquid medium, preferably made of stainless steel or a plastic material
  • the carrier element can be easily pushed over the filling tube and carries the radially outwardly extending and helically extending air guide element.
  • the suction channel to the outside limiting wall member is formed as a tubular sleeve, which in turn can be very easily slide over the filling tube and the support member with the air guide element.
  • the air guide element on first sections which extend at right angles to the longitudinal axis of the filling tube. More preferably, the air guide element has second portions which extend obliquely to the longitudinal axis of the filling tube, wherein first and second portions alternate and two first portions are connected to each other via a second portion. More preferably, two successive first sections are offset in the longitudinal direction and arranged offset by 180 ° in the circumferential direction of the filling tube.
  • This embodiment of the air guide element on the one hand provides the helical flow path of the extracted air and on the other hand allows a very cheap production due to a low tooling expense compared to a "real" helical course.
  • a check valve element is provided at the outlet end of the filling tube.
  • This check valve element has the task to close the outlet end of the filling tube, unless the urea solution is conveyed with a predetermined pressure in the tank. Since the check valve element is attached to the outlet end of the filling tube, there is no or minimal dripping of urea solution after removal of the filling device from the tank.
  • the check valve element comprises a tubular housing having a first and a second longitudinal portion, wherein the first longitudinal portion has a smaller inner diameter than the second longitudinal portion and has a cone-shaped diffuser which is provided inside the second longitudinal portion coaxial therewith and with its larger diameter end facing the first longitudinal section, wherein the diffuser supports a ball spring-loaded, such that the ball can close and release the end of the first longitudinal section.
  • the tubular housing has a third longitudinal portion which has a tapered inner diameter for forming a nozzle.
  • a laminar flow prevents foam or droplet formation and backflow around the outlet end, thus reducing the "risk" of premature and unwanted shutdown.
  • the flow may be preferably further improved by adding at the outlet end, i. Seen in the flow direction after the check valve, a jet regulator (eg. In the form of a mixing nozzle) is provided.
  • a jet regulator eg. In the form of a mixing nozzle
  • Spilling over and / or spraying back the liquid medium can thus be prevented.
  • the filling device is designed as a fuel nozzle.
  • An embodiment of the refueling system may include a holding device for receiving the device for filling and a cleaning device which is designed to clean the suction channel.
  • the cleaning device generates a stream of air for cleaning.
  • the cleaning device is connected to the suction port of the opposite end of the suction channel, wherein the cleaning device blows air into the suction channel, which flows through the suction channel to the suction port.
  • the cleaning device also suck air through the suction channel, for example, toward the suction opening to bring about a cleaning.
  • Fig. 1 is a perspective view of a filling device shown and designated by the reference numeral 10.
  • This filling device is preferably in the form of a Fuel nozzle 11 is formed.
  • the filling device 10 serves to fuel a vehicle, for example a car or a truck, with a liquid medium, in particular a urea solution (also known as "AdBlue").
  • a urea solution also known as "AdBlue”
  • the filling device is designed to allow a closed refueling.
  • urea solutions are now used very often in the field of exhaust gas purification, in particular to convert the nitrogen oxides into nitrogen and water vapor.
  • a urea solution as a liquid medium, although the described embodiments are also advantageously used for other liquid media.
  • the filling device 10 has a grip region 12 and an adjoining connection region 14.
  • the handle portion 12 which is preferably composed of two handles made of plastic handles 16, 18 is similar in shape to the usual form of a fuel nozzle of a tank system for gasoline, diesel etc.
  • a media tube 20 is connected or connected, on the one hand supplies a urea solution and on the other hand gas or air (hereinafter simplified is only spoken of "air”) discharges during refueling from the tank ,
  • a cylindrical operating element 22 is provided, which is rotatably held about its longitudinal axis.
  • the operating element 22 serves to screw the filling device 10 with a connection piece (not shown) to a vehicle tank in order to allow a closed refueling.
  • the operating element 22 has two longitudinal sections with different diameters, wherein the user-manageable longitudinal section 24.1 has a larger diameter than the adjoining second longitudinal section 24.2.
  • the two longitudinal sections 24.1 and 24.2 of the control element 22 are provided from two separate components, which are connected to each other, for example via screws.
  • Fig. 1 is an internal thread member 26 can be seen, which is provided coaxially with the second longitudinal section 24.2. This internal thread element is adapted to the connecting piece of a tank of a vehicle.
  • the operating element 14 when connecting with the filler neck so long rotates the female thread member until a certain torque is reached. Then, the connection between the female thread element and the operating element 14, so that the latter "twisted", without further exerting a torque on the female thread element dissolves.
  • the more detailed structure of this ratchet connection will be explained later.
  • a filling tube 28 which preferably extends coaxially to the operating element 14 and out of the second longitudinal section 24.2 out.
  • both elements could, for example, be arranged eccentrically to each other.
  • a check valve element 30 is provided, wherein the check valve element 30 has an outlet opening 32 for the urea solution.
  • the outlet opening 32 is thus located at a predetermined distance from the internally threaded element 26, so that the filling tube 28 protrudes when connecting to the connection piece of a vehicle in this.
  • a jet regulator 33 is provided downstream of the check valve element 30, which enhances or conditions the outflowing jet.
  • the filling tube 28 is formed at least in the region of the operating element 22 as far as the outlet opening 32 as a tube 36, preferably made of stainless steel.
  • This tube 36 is connected at its end opposite to the outlet end 32 with a hose 38 which extends through the handle portion 12 extends to a coupling element 40 at the end of the handle portion 12.
  • This coupling 40 serves to connect the media tube 20.
  • the tube 36 is within the control element 22 preferably coaxially (eccentric would also be conceivable) out and is surrounded in its front, ie the outlet end 32 facing longitudinal portion of a sleeve 42, wherein this socket 42 is part of a housing member 44. In Fig. 3 the socket 42 and the housing 44 is clearly visible.
  • the bush 42 is designed so that the inside of the bushing 42 abuts against the tube 36.
  • the inner diameter of the sleeve 42 thus corresponds approximately to the outer diameter of the tube 36.
  • the tube 36 is encapsulated for insulation.
  • the bushing in a longitudinal portion 46 has a preferably helical structure 50 which serves as an air guide element 52.
  • the housing 44 has a larger diameter than the bush 42, so that a step 54 is formed.
  • the surface of this step 54 extends obliquely, in particular at right angles, to the longitudinal axis of the filling tube 28.
  • the housing 44 serves u. a. to receive a board 56 and corresponding leads 58.
  • the board 56 carries all electronic components required for the control of the filling device, which in particular provide a closure detection and a fill level recognition and forward the corresponding signals to the refueling system.
  • a stop bushing 62 is plugged, whose inner diameter corresponds to the outer diameter of the helical structure 50.
  • the stop bush 62 is designed so that the helical structure 50 rests against the inside of the stop bushing 62.
  • the stop bushing 62 is inserted in the region of the step 54 via a tubular connecting piece 64, wherein an O-ring 66 seals the connection, in particular against the passage of air or the urea solution.
  • the stop bushing 62 has at its outlet end 32 facing the end of a flange 68 which is engaged behind by a ring end portion of the female thread member 26.
  • the sleeve 42 with the helical structure 50 forms together with the stop bushing 62 and the female thread member 26 an air duct 70 which extends up to the stage 54 and the socket 64 extends. From there, the channel 70 opens into an annular space 72, which extends to the coupling 40 at the end of the handle portion 12. There, the annular space 72 opens into a corresponding air duct 74.
  • the helical structure 50 serves as an air guide element 52 and ensures that the air from the tank does not flow on a straight path to the step 54 and into the annular space 72, but is guided in a helical path around the filling tube 28 and the bushing 42.
  • This - in the projection - circular movement of the air in the longitudinal section 46 ensures that liquid components migrate in the extracted air by the centrifugal forces to the outside and reflected as possible at the stop bushing 62.
  • the air duct is extended by a multiple.
  • the geometry of this helical structure 50 and the arrangement of the transition between the air duct 70 and the annular space 72 should be designed so that liquid components are deposited before the passage of air into the annular space 72. These liquid components may then again run in the direction of the outlet end 32 on the bushing 42 and the stop bushing 62, respectively.
  • This cyclonic guidance of the extracted air stream is intended to prevent liquid components, i. Urea solution, enter areas downstream of the stage 54.
  • liquid components i. Urea solution
  • the significantly extended air flow and the helical or labyrinthine arrangement of the air guide element contribute to this. Crystallization of this urea solution in this area could lead to blockages / disturbances which are not easily remedied. Cleaning only the front longitudinal portion 46 of the sleeve 42 is much easier from the outside possible. In addition, this part can also be easily replaced.
  • the structure 50 is not formed exactly helical. Rather, this structure is composed of straight sections 76 and 78, wherein the sections 76 at right angles to the longitudinal axis of the sleeve 42 and the sections 78 extend obliquely to the longitudinal axis. As it turned out Fig. 3 4, rectangular sections 76 and oblique sections 78 alternate so that an inclined section 78 connects two longitudinally offset and circumferentially 180 ° offset rectangular sections 76. All longitudinal sections 76, 78 are preferably connected to one another, so that the helical structure results.
  • this helical structure ensures that the flow channel is extended and that the helix prevents the directly flowing / back sloshing urea solution on the direct route into the nozzle of the fuel nozzle. Furthermore, the escaping air flows like a helix around the bushing 42, so that centrifugal force causes liquid components in the extracted air to be deposited on the outer stop bushing 62.
  • An advantage of this helical structure is that the flow path from the internally threaded member 26 to the step 54 is significantly increased, so that rising in the tank or advocatesklappende urea solution does not reach the behind the step 54 annular space 72 as fast.
  • the female thread member 26 preferably has at its end facing away from the outlet end sawtooth-shaped recesses 82, the inclined flanks 84 - at a clockwise rotation - front and the vertical edge 86 are behind. If a rotation in the counterclockwise direction to be desired, the obliquely and perpendicular flanks are arranged correspondingly reversed.
  • the internal thread element 26 cooperates with the rotation of the operating element 22 with a triggering element 86, which has correspondingly formed saw teeth 88 at its end facing the internal thread element 26.
  • the arrangement of these saw teeth 88 in the circumferential direction of the cylindrical trigger member 86 corresponds to the arrangement of the recesses 82, so that these saw teeth 88 can dive into the recesses 82.
  • the triggering element 86 has on its peripheral surface driving elements 90 which cooperate with corresponding elements on the inside of the first longitudinal section 24.1 of the operating element 22. About this driver elements 90, a rotational movement of the control element 22 is transmitted to the trigger element 86. This rotational movement is transmitted via the oblique edges of the saw teeth 88 on the female thread member 26, so that the female thread member 26 can be screwed onto the external thread of the connection piece of the tank on the motor vehicle.
  • the sloping flanks of the saw teeth 88 of the trigger member 86 slide along the sloping flanks 84 of the recesses 82 so that the entire trigger member 86 moves longitudinally rearward, ie away from the outlet end 32 , As soon as the saw teeth 88 have left the recesses 82, the control element 22 can rotate clockwise.
  • control element In order to release the female thread element 26 again from the connecting piece, the control element can be rotated counterclockwise, in which case the vertical edges of the saw teeth 88 cooperate positively with the vertical edges 86 of the recesses 82 and can transmit the torque to open.
  • the trigger element 86 has a cylindrical portion 92 which - as in Fig. 2b can be seen - when sliding back into an area 94 dives.
  • This area is monitored electrically / electronically, for example by means of optical / optoelectronic elements, in order to provide the control electronics with a signal which signals complete closing or screwing on of the filling device.
  • the immersion of the cylindrical portion 92 in the region 94 can be detected and detected not only visually, but for example also mechanically via mechanical switching elements.
  • switching elements are, for example, magnetoresistive switches, reed switches, Hall sensors, etc. conceivable.
  • results in the check valve element 30 is inserted into the end of the filling tube 28, for example. Plugged or screwed.
  • This check valve element serves to prevent leakage of urea solution from the filling tube as soon as the urea solution is no longer pumped. In other words, this valve only opens when a certain pressure in the filling tube 28 is reached.
  • the structure of the check valve element 30 according to a first embodiment is in the Fig. 5a and 5b shown.
  • the check valve element 30 has a cylindrical housing 98, which preferably has a first longitudinal section 100.1 with a thread, an adjoining second longitudinal section 100.2 and a third adjoining longitudinal section 100.3.
  • the first longitudinal section 100.1 is designed so that it can be inserted or screwed into the filling tube 28, in particular into the inner tube 36.
  • the outer diameter of this first longitudinal section 100.1 thus corresponds to the inner diameter of the tube 36.
  • the second longitudinal section 100.2 now has a larger outer diameter than the first longitudinal section and a larger inner diameter as the first longitudinal section 100.1.
  • the third longitudinal section 100.3 has a tapered outer diameter as well as a tapered inner diameter, it being noted at this point that the outer diameters of the second and third longitudinal sections 102, 103 may also be formed differently than illustrated. It is in these two longitudinal sections alone on the design of the inner diameter.
  • a diffuser element 102 is provided within the second longitudinal section 100.2, which has a conical or conical outer geometry.
  • the larger end 104 of the diffuser with respect to the diameter is facing the first longitudinal section 100.1.
  • the diffuser element 102 is attached via fastening elements 112 on the inside of the housing 98, wherein this attachment should cover as little as possible flow cross-section.
  • the diffuser element 102 has at its end 104 a recess 106 which serves to receive a ball 108 and a spring 110.
  • One side of the spring 110 is supported on the diffuser element 102 and the other side on the ball 108.
  • the spring pushes the ball 108 against the opening of the longitudinal portion 101 to close this opening tight.
  • the urea solution may flow around the end 104 of the diffuser element 102 into the annulus 112. Due to the conical shape of the diffuser element 102, the annular space 112 expands in the flow direction, i. toward the outlet end 32. The flow channel cross-section thus increases.
  • This geometry has the purpose to make the flow after the flow around the end 104 of the diffuser element to comparative, ie to make more laminar.
  • the pressure and the flow rate decrease in this area.
  • the tapering longitudinal section 100.3 which works like a nozzle, also provides an additional contribution to a laminar flow.
  • Fig. 5b is shown in the form of an exploded view of the structure of the check valve element 30 again.
  • the attached to the diffuser element 102 fastener 112 which is formed as a ring, with a few spokes to the diffuser element and are mounted there.
  • the ring of the fastener 112 is supported by the second longitudinal portion 102.
  • FIG. 6a and 6b An alternative embodiment of a check valve element 30 'is in Fig. 6a and 6b represented, wherein functionally identical parts are identified by the same reference numerals.
  • One of the essential differences of this embodiment is the fact that adjoins the nozzle-like third longitudinal section 100.3 another cylindrical longitudinal section 100.4, whose inner diameter is the same in the longitudinal direction.
  • fasteners 112 ' are provided at the end 104 of the diffuser element 102, which are supported by the second longitudinal section 100.2.
  • Fig. 7 is shown in a schematic representation of a tank system and designated by the reference numeral 114.
  • the tank system 114 includes a fuel pump 115, which has a receiving shaft 116 for the fuel nozzle 11, which is shown here for simplicity as a triangle.
  • the fuel nozzle 11 is connected via a hose 117 to the fuel pump 115, wherein the hose 117 has an inner line 107 for the urea solution and an outer, preferably provided as a ring line air or gas recirculation line.
  • run in the hose 117 electrical lines to supply the control in the fuel nozzle on the one hand with energy and on the other hand signals to a attributed control provided in the fuel pump 115.
  • the line 117 is associated with a fast-switching valve 118, in particular a solenoid valve, which can open and close the connection in the urea line 107 in the hose 117 within a few milliseconds.
  • the inner conduit 107 is associated with a pressure sensor 119, which is preferably provided in the region of the fuel nozzle 11.
  • the fuel pump 115 comprises a cleaning device 120, which is provided to clean the fuel nozzle 11 and the line for discharging the air.
  • air is used, which is guided either through the hose 117, for example.
  • the fuel nozzle lies in the receiving shaft 116 in order to be able to catch the blown up urea solution.
  • the fuel nozzle 11 is screwed onto the connecting piece of the vehicle for refueling, until the operating element 22 rotates.
  • the electronics provided in the interior of the fuel nozzle 11 detect the movement of the cylindrical portion 92 into the region 94 and return a signal to the pump 115.
  • the user then presses, for example, a refueling button on the fuel pump 115, whereby the refueling process is started.
  • the valve 118 is released and the feed pump can then promote urea solution through the hose 117 and the nozzle 11 into the tank, the pressure sensor 119 provides control signals for adjustment to the controller.
  • the predetermined by the controller delivery rate is set to a first value.
  • a mounted at the end of the filling tube 28 sensor for example. In the form of two electrodes, detects the level within the connection piece of the vehicle. The two electrodes required for this purpose are either provided as separate components or preferably used, for example. the filling tube 28 as one of the two electrodes.
  • a corresponding filling signal is transmitted to the controller in the fuel pump. The controller stops the delivery pump in response to this signal and closes the valve 118.
  • the fill signal now changes within a predefinable time period, for example three seconds, the delivery of urea solution is continued. Only when urea solution persists, i. The refueling is completed longer than the predetermined period of time that wets the sensor at the filling tube 28. The control in the fuel pump 115 registers this event and prevents further refueling of the vehicle.
  • valve 118 for example, a 3/2 way valve or a pure shut-off valve
  • the valve 118 closes the line for the urea solution within a few milliseconds, so that the still funded by the inertia of the pump residual amount is no longer in the Hose 117 passes.
  • valve 118 can of course also be provided in the dispensing gun 11.
  • refueling is made with a first adjustable delivery rate dV / dt.
  • a first filling signal is now preferably in the further refueling with a second delivery rate, which is also adjustable and less than the first delivery rate, refueled.
  • a second delivery rate which is also adjustable and less than the first delivery rate, refueled.
  • the controller in the petrol pump then receives another filling signal, it is again stopped and forwarded after the predetermined period of time, provided that the filling signal has disappeared.
  • the delivery rate may then be the same as the second delivery rate or alternatively may be lowered further.
  • the "switch-on curve" can be specified in the controller. Alternatively, the “switch-on curve” is fixed.
  • this "switch-on curve" can be reused or, alternatively, it can be conveyed immediately with the second lower delivery rate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP15164131.3A 2012-02-28 2013-02-28 Système et procédé de ravitaillement Withdrawn EP2927191A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012003702 2012-02-28
EP13707841.6A EP2819947A2 (fr) 2012-02-28 2013-02-28 Dispositif de remplissage

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP13707841.6A Division EP2819947A2 (fr) 2012-02-28 2013-02-28 Dispositif de remplissage

Publications (2)

Publication Number Publication Date
EP2927191A2 true EP2927191A2 (fr) 2015-10-07
EP2927191A3 EP2927191A3 (fr) 2015-12-09

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP13707841.6A Withdrawn EP2819947A2 (fr) 2012-02-28 2013-02-28 Dispositif de remplissage
EP15164131.3A Withdrawn EP2927191A3 (fr) 2012-02-28 2013-02-28 Système et procédé de ravitaillement

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Application Number Title Priority Date Filing Date
EP13707841.6A Withdrawn EP2819947A2 (fr) 2012-02-28 2013-02-28 Dispositif de remplissage

Country Status (4)

Country Link
US (1) US20150013826A1 (fr)
EP (2) EP2819947A2 (fr)
DE (1) DE102013003314A1 (fr)
WO (1) WO2013127941A2 (fr)

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FR3025506A1 (fr) * 2014-09-10 2016-03-11 Erla Technologies Dispositif de distribution d'un fluide.
ITUA20164425A1 (it) * 2016-06-16 2017-12-16 Piusi Spa Apparecchiatura per l'erogazione di soluzioni acquose di urea per il trattamento dei gas di scarico in veicoli a motore diesel.
GB2561841A (en) * 2017-04-24 2018-10-31 Brenntag Uk Ltd Fluid dispensing method and apparatus
DE102019118427B4 (de) * 2019-07-08 2021-01-21 Volkswagen Aktiengesellschaft Betankungseinrichtung
CA3216738A1 (fr) 2021-05-05 2022-11-10 Brandon TRUAN Systeme de remplissage automatique de reservoir de fluide d'echappement diesel (def)
US11524888B1 (en) * 2022-07-26 2022-12-13 Bob J. Hill Vapor recovery system for mobile fuelers

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WO2013127941A3 (fr) 2013-12-19
EP2927191A3 (fr) 2015-12-09
WO2013127941A2 (fr) 2013-09-06
DE102013003314A1 (de) 2013-08-29
US20150013826A1 (en) 2015-01-15
EP2819947A2 (fr) 2015-01-07

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