EP0678476B1 - Einrichtung zur Abgabe flüssiger Kraftstoffe - Google Patents

Einrichtung zur Abgabe flüssiger Kraftstoffe Download PDF

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Publication number
EP0678476B1
EP0678476B1 EP94105935A EP94105935A EP0678476B1 EP 0678476 B1 EP0678476 B1 EP 0678476B1 EP 94105935 A EP94105935 A EP 94105935A EP 94105935 A EP94105935 A EP 94105935A EP 0678476 B1 EP0678476 B1 EP 0678476B1
Authority
EP
European Patent Office
Prior art keywords
computer
pump
fuel
gas
electric motor
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.)
Expired - Lifetime
Application number
EP94105935A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0678476A1 (de
Inventor
Gregor Dr. Schlechtriem
Ulrich Dipl.-Ing. Wortelkamp
Erwin Dipl.-Ing. Busch
Lothar Jansen
Hans Jürgen Stattrop
Gert Miller
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.)
Scheidt and Bachmann GmbH
Original Assignee
Scheidt and Bachmann 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 Scheidt and Bachmann GmbH filed Critical Scheidt and Bachmann GmbH
Priority to DE59407054T priority Critical patent/DE59407054D1/de
Priority to DK94105935T priority patent/DK0678476T3/da
Priority to AT94105935T priority patent/ATE171921T1/de
Priority to ES94105935T priority patent/ES2123679T3/es
Priority to EP94105935A priority patent/EP0678476B1/de
Priority to NO943142A priority patent/NO303217B1/no
Publication of EP0678476A1 publication Critical patent/EP0678476A1/de
Application granted granted Critical
Publication of EP0678476B1 publication Critical patent/EP0678476B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B67D7/04—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
    • B67D7/048—Vapour flow control means, e.g. valves, pumps
    • B67D7/0482—Vapour flow control means, e.g. valves, pumps using pumps driven at different flow rates
    • B67D7/0486—Pumps driven in response to electric signals indicative of pressure, temperature or liquid flow

Definitions

  • the invention relates to a device for dispensing liquid fuels at least one storage tank by means of at least one with a fuel nozzle provided fuel hose, which the fuel through a fuel pump with the interposition of a measuring unit with pulse generator for determination the amount of fuel is supplied by a petrol pump computer, the one Controls the display of the quantity and price of the type of fuel delivered, and with the extraction of the fuel when dispensing from the filling gas-escaping air-gas mixture via a at the Fuel nozzle arranged gas intake opening through a gas return line is connected to a gas suction pump, the pressure side to an in Return tank leading to storage tank connected and its suction power proportional to the fuel flow determined by the measuring unit through a Computer is controlled.
  • Such devices for dispensing liquid fuels with suction of escaping from the tank to be filled when the fuel is dispensed Air-gas mixtures are known.
  • the Proportionality between the amount of air-gas mixture extracted and the amount of fuel dispensed achieved by that in the Fuel line arranged measuring unit as a drive of the gas suction pump is used.
  • the gas suction pump to drive an electric motor, its speed to adjust the amount of the extracted air-gas mixture to the respective amount of the discharged Fuel is controlled, depending on the impulses, a pulse generator assigned to the measuring unit for the delivered fuel to determine and display the amount of fuel and associated price.
  • a generic device is for example from DE-A-39 03 603 known.
  • the pulse generator generated pulses via separate lines to the individual actuators transmitted.
  • the motor for actuating the return pump is as pulse-driven motor trained on the one hand by the pulses of the Pulse generator is controlled, which in turn by the fuel measuring engine is operated.
  • the computer which is still controlled by the pulse generator controls or in turn controls the drive of the return pump.
  • This control of Return pump shows that in this known device Multiple adjustment of the pulses via the pulse generator to the motor Return pump and from the pulse generator to the computer and from this in turn to drive the return pump. This control also requires individual wiring of all units with each other.
  • the invention has for its object to further develop the device of the type described above for dispensing liquid fuels with suction of the air-gas mixture escaping when the fuel is dispensed from the tank to be filled in such a way that safe control of both the detection is achieved with less wiring and easier monitoring - And display devices for the amount of fuel dispensed and the associated price as well as the gas suction pump for the purpose of adapting the extracted volume to the amount of fuel dispensed is possible.
  • the solution to this problem by the invention is characterized in that the pulse generator of each measuring unit is directly assigned a computer which processes the pulses of the pulse generator into measurement data which, on the one hand, the dispenser computer and, on the other hand, the computer for controlling the suction quantity of the gas suction pump via a network can be fed with a network protocol.
  • the advantage of the training according to the invention is that despite considerable less wiring, namely the arrangement of only one the pulse generator of the measuring units on the one hand with a dispenser computer and on the other hand with the computers for controlling the suction quantity of the gas suction pump connecting network, ensures secure data transmission is because the pulses of each pulse generator by the assigned Computer immediately processed to measurement data, which together with a network protocol are forwarded over the network, the proper data transfer and feedback from the Network protocol can be monitored, for example Ethernet, CAN (Control Area Network), or LON (Local Operating Network).
  • the measurement data distributed over the network can be used according to the invention either a computer to control the speed of the gas suction pump driving electric motor or a computer for control a proportional valve controlling the suction quantity of the gas suction pump be fed.
  • the computer can Control of the suction quantity of the gas suction pump one for the respective device the table determined before they are put into operation a target-actual value comparison of the system-specific data target values for the assignment of the speed of the electric motor driving the gas suction pump or the position of the proportional valve to that of the measuring unit determined fuel quantity contains.
  • a table can be used when assigning the amount of suction of the air-gas mixture to the given amount Eliminate fuel errors that result from the individual design of the respective facility, for example through losses in the differently trained and routed lines for returning the air-gas mixture to the respective storage tank.
  • a further increase in the security of the device according to the invention can be achieved in that the current consumption of the three-phase motor for Drive of the gas suction pump is monitored and that when Overcurrent data sent to the dispenser computer via the network be, which cancels the tapping process by switching off the Lead the fuel pump engine. Also the speed of the single phase capacitor motor can be monitored according to the invention so that when it occurs of deviations, a speed adjustment by the associated computer data or in the event of an error via the network to the dispenser computer are delivered, which leads to a termination of the tapping process Stop the fuel pump engine.
  • the first exemplary embodiment shown in FIG. 1 schematically shows one Earth tank 1 for a liquid fuel, for example gasoline, which has a Fuel line 2 is sucked in by a pump 3 by an engine 4 is driven. The speed of this motor 4 is determined by a nozzle 5 controlled that at the end of the fuel line designed as a flexible nozzle 2a 2 is arranged. The amount of fuel delivered is determined by a measuring unit 6, which is arranged in the fuel line 2 is.
  • a gas suction opening formed on the fuel nozzle 5 via a Gas return line 7 connected to the underground tank 1.
  • a gas suction pump 8 is arranged, the suction power of which is proportional is controlled to the fuel flow determined by the measuring unit 6.
  • a Electric motor 9 driven, the speed of which is controllable.
  • the measuring unit 6 is connected to a pulse generator 10, which is a computer 11 is assigned.
  • This computer 11 processes the pulses from the pulse generator 10 to measurement data, on the one hand via a network 12, a dispenser computer 13 are supplied, the amount and price of each type of fuel dispensed determined and controls an associated display 14 that next to the Base price of the fuel type available in the underground tank 1 is the quantity and displays the associated price of the fuel delivered.
  • those generated in the computer 11 are generated via the network 12 Data supplied to a computer 15, which in the exemplary embodiment according to FIG. 1 the speed of the electric motor 9 driving the gas suction pump 8 such controls that their suction line is proportional to that determined by the measuring unit 6 Fuel flow is so that an air-gas mixture quantity via the nozzle 5 is sucked in, which is exactly the output by the nozzle 5 Amount of fuel.
  • the second embodiment shown in Fig. 2 differs from Embodiment according to FIG. 1 in that in the gas return line 7th arranged gas suction pump 8 driven by an electric motor 16 that always rotates at constant speed during the dispensing process.
  • the suction power of the gas suction pump, which is thus driven at constant speed 8 of the respective delivery rate determined by the measuring unit 6 to adapt the pump 3 is in a bypass line 17 to the gas suction pump 8 a proportional valve 18 is arranged, the flow cross section is variable via an actuator 19.
  • This servomotor 19 is a Associated computer 20, which in the embodiment of FIG. 2 instead of 1 used computer 5 on the Network 12 is supplied with the measurement data due to the pulse generator 10 emitted pulses are generated in the computer 11.
  • Variable proportional valve 18 thus replaces the change in speed of the Gas suction pump 8 in the exemplary embodiment according to FIG. 1 driving electric motor 9.
  • the proportional valve 18 When the proportional valve 18 is closed, the full suction power is available that is always driven by the electric motor 16 at a constant speed Gas suction pump 8 available.
  • the proportional valve 18 By opening the proportional valve 18 the effective suction power in the gas return line 7 is reduced, since a corresponding to the opening cross section, circulated in the bypass line 17 Secondary flow the main flow effective in the gas return line 7 is superimposed.
  • the third exemplary embodiment according to FIG. 3 shows a multi-hose system three underground tanks 1a, 1b, 1c.
  • the underground tank 1 a can, for example, with gasoline
  • the underground tank 1b can be filled with Super and the underground tank 1c with Super-Plus.
  • Each underground tank 1a, 1b, 1c in turn has a flexible nozzle in the end area 2a trained fuel line 2 to a nozzle 5.
  • Each fuel line 2 is a pump 3 driven by an engine 4 and a measuring unit 6 arranged.
  • Each nozzle 5 is in turn provided with a gas return line 7. 3, however, are all three gas return lines 7 connected to a gas suction pump 8, which is assigned to the underground tank 1a is.
  • this gas suction pump 8 driven by an electric motor 9, the speed of which is controllable is.
  • This speed control is carried out with the aid of a computer 15 which is supplied via a network 12 with measurement data from one or several computers 11 are generated due to pulses generated by the each one pulse generator 10 assigned to a measuring unit 6 will.
  • the suction power of the gas suction pump 8 is consequently the total amount the amount of fuel dispensed by the nozzle 5 customized.
  • the amount of air-gas mixture sucked out of the tanks to be filled is, however, only supplied to the underground tank 1a.
  • the respective pulse generator 10 as a function of that determined by the associated measuring unit 6
  • Fuel flow generated pulses arranged directly on the pulse generator 10
  • Computer 11 supplied, which adds the pulses to measurement data and this measurement data in predetermined time periods on the one hand via the network 12 to a dispenser computer 13 and on the other hand to a computer 15 or 20 with a network protocol.
  • the dispenser calculator 13 the amount to be paid is calculated from the measurement data and in the corresponding Display 14 the amount of fuel dispensed and the associated Price displayed.
  • computers 15 and 20 they actually do flowing fuel volume corresponding measurement data processed to either the speed of the electric motor 9 driving the gas suction pump 8 or to control the servomotor 19 of the proportional valve 18.
  • the computer 15 or 20 for controlling the suction quantity of the respective gas suction pump 8 can be carried out before the respective Dispensing system determined table, which are based on a Setpoint-actual value comparison of the system-specific data Setpoints for the assignment the speed of the electric motor 9 driving the gas suction pump 8 or the position of the proportional valve 18 to that of the respective measuring unit 6 determined fuel quantity contains.
  • the computer 15 When using a three-phase motor to drive the gas suction pump 8 are the data output by the computer 15 in frequencies for speed control transformed.
  • the current consumption of the three-phase motor be monitored. If overcurrent occurs, over the network 12 submitted data to the dispenser computer 13, which too an abort of the dispensing process by switching off the pump 3 driving Motors 4 lead.
  • the computer 15 output data used for leading edge control. In this case the speed of the single-phase capacitor motor is monitored; when it occurs deviations are either readjusted by the associated computer 15 or in the event of an error via the network 12 and the dispenser computer 13 an abort of the dispensing process by switching off of the fuel pump engine.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Feeding And Controlling Fuel (AREA)
EP94105935A 1994-04-16 1994-04-16 Einrichtung zur Abgabe flüssiger Kraftstoffe Expired - Lifetime EP0678476B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE59407054T DE59407054D1 (de) 1994-04-16 1994-04-16 Einrichtung zur Abgabe flüssiger Kraftstoffe
DK94105935T DK0678476T3 (da) 1994-04-16 1994-04-16 Indretning til udlevering af flydende brændstoffer
AT94105935T ATE171921T1 (de) 1994-04-16 1994-04-16 Einrichtung zur abgabe flüssiger kraftstoffe
ES94105935T ES2123679T3 (es) 1994-04-16 1994-04-16 Dispositivo para el suministro de carburantes liquidos.
EP94105935A EP0678476B1 (de) 1994-04-16 1994-04-16 Einrichtung zur Abgabe flüssiger Kraftstoffe
NO943142A NO303217B1 (no) 1994-04-16 1994-08-25 Innretning for avgivelse av flytende brennstoff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94105935A EP0678476B1 (de) 1994-04-16 1994-04-16 Einrichtung zur Abgabe flüssiger Kraftstoffe

Publications (2)

Publication Number Publication Date
EP0678476A1 EP0678476A1 (de) 1995-10-25
EP0678476B1 true EP0678476B1 (de) 1998-10-07

Family

ID=8215868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105935A Expired - Lifetime EP0678476B1 (de) 1994-04-16 1994-04-16 Einrichtung zur Abgabe flüssiger Kraftstoffe

Country Status (6)

Country Link
EP (1) EP0678476B1 (no)
AT (1) ATE171921T1 (no)
DE (1) DE59407054D1 (no)
DK (1) DK0678476T3 (no)
ES (1) ES2123679T3 (no)
NO (1) NO303217B1 (no)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59712693D1 (de) * 1997-04-10 2006-08-24 Scheidt & Bachmann Gmbh Einrichtung zur Abgabe flüssiger Kraftstoffe
NZ337729A (en) * 1998-09-09 2001-01-26 Marconi Commerce Sys Inc Service station vapour recovery control in accordance with vapour recovered to liquid dispensed ratio

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534487A2 (de) * 1991-09-25 1993-03-31 ROSS EUROPA GmbH Anordnung zum Rückführen von Kohlenwasserstoffen bei Kraftstoffbetankungsanlagen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360877A (en) * 1980-04-08 1982-11-23 Tokheim Corporation Distributed data processing system and method for a fluid dispenser
DE8717378U1 (de) * 1987-10-05 1988-09-15 Tankanlagen Salzkotten GmbH, 4796 Salzkotten Zapfsäule für den Einbau in Kraftfahrzeugtankstellen mit Dampfabsaugung durch eine Gasförderpumpe
DE3903603C2 (de) * 1989-02-08 1994-10-06 Schwelm Tanksysteme Gmbh Tankanlage für Kraftfahrzeuge
US5195564A (en) * 1991-04-30 1993-03-23 Dresser Industries, Inc. Gasoline dispenser with vapor recovery system
DE4137345A1 (de) * 1991-11-13 1993-05-19 Salzkotten Tankanlagen Vorrichtung zum betanken von kraftfahrzeugen mit gasrueckfuehrung durch eine motorgetriebene gasfoerderpumpe
JP2682314B2 (ja) * 1991-12-09 1997-11-26 株式会社タツノ・メカトロニクス 給油機制御装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534487A2 (de) * 1991-09-25 1993-03-31 ROSS EUROPA GmbH Anordnung zum Rückführen von Kohlenwasserstoffen bei Kraftstoffbetankungsanlagen

Also Published As

Publication number Publication date
NO943142L (no) 1995-10-17
EP0678476A1 (de) 1995-10-25
NO303217B1 (no) 1998-06-15
ATE171921T1 (de) 1998-10-15
DE59407054D1 (de) 1998-11-12
ES2123679T3 (es) 1999-01-16
DK0678476T3 (da) 1999-06-21
NO943142D0 (no) 1994-08-25

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