EP0598928A1 - Petrol station with fuel vapor recovery - Google Patents

Petrol station with fuel vapor recovery Download PDF

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Publication number
EP0598928A1
EP0598928A1 EP92119596A EP92119596A EP0598928A1 EP 0598928 A1 EP0598928 A1 EP 0598928A1 EP 92119596 A EP92119596 A EP 92119596A EP 92119596 A EP92119596 A EP 92119596A EP 0598928 A1 EP0598928 A1 EP 0598928A1
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EP
European Patent Office
Prior art keywords
gas
pump
fuel
motor vehicle
nozzle
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.)
Granted
Application number
EP92119596A
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German (de)
French (fr)
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EP0598928B1 (en
Inventor
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
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Scheidt and Bachmann GmbH
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Filing date
Publication date
Priority to DE59201683T priority Critical patent/DE59201683D1/en
Application filed by Scheidt and Bachmann GmbH filed Critical Scheidt and Bachmann GmbH
Priority to AT92119596T priority patent/ATE119855T1/en
Priority to ES92119596T priority patent/ES2070572T3/en
Priority to EP92119596A priority patent/EP0598928B1/en
Priority to PL93299046A priority patent/PL299046A1/en
Priority to HU9303255A priority patent/HU210381B/en
Publication of EP0598928A1 publication Critical patent/EP0598928A1/en
Application granted granted Critical
Publication of EP0598928B1 publication Critical patent/EP0598928B1/en
Priority to GR950400695T priority patent/GR3015618T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • the invention relates to a motor vehicle filling station with a suction device for the gasification fuel gases emerging from the filling of the motor vehicle tanks by means of a gas pump, which is arranged in a gas return line running between the storage tank and a gas suction opening on the nozzle valve and which also is driven by the measuring unit driven by the fuel pump in the manner of a hydraulic motor a suction power corresponding to the amount of fuel output is driven.
  • a motor vehicle filling station of the type described above is known from DE-PS 36 13 453.
  • motor vehicle filling stations approximately 80 to 90% of the gases escaping from the carburetor fuels escaping from the gasoline fuels are returned to the storage tank of the filling station, although the gas return is an open, vacuum-assisted system. Since such open systems are considerably less expensive than closed systems, which do not require a gas pump and are therefore referred to as passive systems, with regard to the outlay in terms of equipment, particularly when converting and retrofitting existing petrol stations, taking existing motor vehicles into account, their use in practice is preferred.
  • the invention has for its object to reduce the effort involved in the extraction of the carburettor fuel gases in the known motor vehicle filling stations described at the beginning, both in the case of new construction and in the case of retrofitting, if they are equipped with so-called multi-product dispensers.
  • multi-product dispensers different gasoline fuels and possibly diesel fuels can be dispensed at one dispensing point, although it is not possible to dispense different types of fuel at the same time. Different types of fuel can only be dispensed one after the other.
  • the solution to this problem by the invention is characterized in that in the case of multi-product dispensers with a timed delivery of only one type of fuel in each case, all the gas return lines emanating from the gas intake opening of the dispensing valves for dispensing the different carburettor fuels are connected together to the suction nozzle of the gas pump, each with a shut-off valve, whose pressure port is connected to a gas line connecting all storage tanks for gasoline fuels and which is driven by the fuel pump switched on for the respective dispensing process via a gear unit connecting all measuring units for dispensing the different gasoline fuels to the gas pump.
  • the effort required for collecting the gases of the carburetor fuels escaping from the motor vehicle tanks is reduced to a single gas pump per multi-product gas pump, which is connected to the fuel pump put into operation for the respective fueling process via a gear connected to all measuring units for dispensing carburettor fuels is drivable and the intake manifold is connected to the associated nozzle by means of a gas return line.
  • a shut-off valve is arranged in each of these gas return lines. Of these shut-off valves, only the one whose tap valve is put into operation is opened.
  • These shut-off valves are electrically or hydraulically controlled and are arranged before the transition into the fueling hoses, which preferably run coaxially for fuel or gas delivery, or in the fueling valve.
  • the development according to the invention thus reduces the outlay for the extraction of the gasoline fuel gases in the case of multi-product dispensers in an open system to a minimum. Since, according to a further feature of the invention, all storage tanks for carburettor fuels are connected to a gas line in which the pressure line coming from the gas pump opens, sufficient volume is available in any case for the return of the extracted gases.
  • the transmission is formed by all measuring units with gear trains connecting the gas pump, each of which is connected to the associated measuring unit by engaging a freewheel.
  • the multi-product dispenser shown schematically in FIGS. 1 and 2 in the exemplary embodiment comprises a three-part, cupboard-like lower part 1, next to which five column-like dispensing hose housings 2 are arranged; there is also a housing 3, in which the display devices are accommodated, which for clarity have not been shown in the drawing.
  • the dispensing hose housing 2 each have a receptacle for a dispensing valve 4, which is arranged at the end of a preferably double-walled dispensing hose 5.
  • the motor vehicle filling station of the exemplary embodiment which is designed as a multi-product petrol pump, is composed of a modular system.
  • it each includes a tap for normal gasoline, unleaded premium gasoline, unleaded premium gasoline, leaded premium gasoline and diesel.
  • a fuel pump 7a or 7b or 7c or 7d or 7e is assigned to each of the storage tanks 6a to 6e, which pumps the fuel drawn in from the storage tanks 6a to 6e via a measuring unit 8a or 8b or 8c or 8c or 8d or 8e through a nozzle 5a or 5b or 5c or 5d or 5e to the associated nozzle 4a or 4b or 4c or 4d or 4e.
  • FIG. 3 shows a gas suction opening 10 which is connected to the suction nozzle 12a of a gas pump 12 via a gas return line 11a.
  • this gas pump 12 When this gas pump 12 is operated, the gasifier fuel gases escaping from it when a motor vehicle tank is being filled are sucked in in this way.
  • the schematic representation in FIG. 3 shows such a motor vehicle tank 13, in the tank neck of which the nozzle valve 4a is inserted.
  • the nozzle valves 4b, 4c and 4d are also connected to the suction port 12a of the gas pump 12 via a gas return line 11b or 11c or 11d.
  • a shut-off valve 14a or 14b or 14c or 14d is arranged, which is controlled electrically and / or hydraulically.
  • These shut-off valves 14a to 14d can also be integrated in the respective nozzle valve 4a to 4d.
  • the nozzle 4e Since, in contrast to the output of carburetor fuels, hardly any fuel gases are produced when diesel fuels are dispensed, the nozzle 4e is not equipped with a gas return line.
  • the pressure port 12b of the gas pump 12 is connected via a gas line 12c to the storage tanks 6a, 6b, 6c and 6d, which contain gasoline fuels.
  • a connection of the gas pump 12 to the storage tank 6e for diesel is not provided.
  • a flame arrester filter 9 is arranged in each case in the suction nozzle 12a and behind the pressure nozzle 12b.
  • the gas pump 12 is connected to the measuring units 8a, 8b, 8c and 8d by means of a gear train 15a, 15b, 15c and 15d.
  • the connection of the gear trains 15a to 15d connected in series takes place in each case via a freewheel.
  • FIG. 3 also shows that each measuring unit 8a to 8e is assigned a pulse generator 16a to 16e, with the aid of which the quantity of liquid dispensed is detected.
  • normal gasoline is dispensed from the storage tank 6a via the dispensing hose 9a and through the dispensing valve 4a into the motor vehicle tank 13.
  • the fuel is sucked in by the fuel pump 7a out of the storage tank 6a and pumped through the dispensing hose 9a into the motor vehicle tank 13 via the measuring unit 8a.
  • the gases that are pushed out in the motor vehicle tank 13 by the inflowing fuel and that arise during the dispensing process are sucked in at the dispensing valve 4 a with the help of the gas suction opening 10. This suction takes place with the help of the gas pump 12 via the gas return line 11a.
  • the shut-off valve 14a is open, whereas the shut-off valves 14b to 14d are closed.
  • the suctioned gasifier fuel gases are fed to the storage tanks via the pressure connection 12b of the gas pump 12 via the pipe system.
  • the gas pump 12 is driven by the fuel pump 7a, which drives the gas pump 12 via the associated measuring unit 8a, with the aid of the gear train 15a.
  • the gear trains 15b, 15c and 15d connected in series with this gear train 15a are ineffective in this case, since they are each connected to the associated measuring unit 8b or 8c or 8d via a freewheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Basic Packing Technique (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Vehicle Body Suspensions (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a petrol station with sucking off of the carburettor fuel gases which emerge from the motor vehicle tanks (13) while the latter are being filled, the said sucking off action being performed by means of a gas pump (12) which is arranged in a gas return pipe (11a to 11d) which extends between the storage tank (6a to 6d) and a gas suction aperture (10) on the pintle valve (4a to 4d) and is driven by the measuring assembly (8a to 8d) which is driven by the petrol pump (7a to 7d) in the manner of a hydraulic motor and has a suction rate which corresponds to the amount of fuel discharged in each case. In order to reduce the outlay entailed by arranging for the carburettor fuel gases to be sucked off, both when the equipment is newly constructed and when existing equipment is converted, in the case of multi-product petrol pumps with delivery of only one kind of fuel at any one time, all the gas return pipes (11a to 11d) which emerge from the gas suction aperture (10) of the pintle valves (4a to 4d) for delivery of the various carburettor fuels are, with interposition of a cut-off valve (14a to 14d) in each case, jointly connected to the suction nozzle (12a) of the gas pump (12), the pressure nozzle (12b) of which is connected to a gas pipe (12c) which connects all the storage tanks (6a to 6d) for carburettor fuels, the said gas pump (12) being driven via a transmission system (15a to 15d) which connects to the gas pump (12) all the measuring assemblies (8a to 8d) for delivery of the different carburettor fuels and belongs to the petrol pump (7a to 7d) switched on for the respective tapping operation. <IMAGE>

Description

Die Erfindung betrifft eine Kraftfahrzeugtankstelle mit einer Absaugung der beim Befüllen der Kraftfahrzeugtanks aus diesen austretenden Vergaserkraftstoffgase mittels einer Gaspumpe, die in einer zwischen dem Lagertank und einer Gasansaugöffnung am Zapfventil verlaufenden Gasrückführleitung angeordnet und die durch das von der Kraftstoffpumpe in der Art eines Hydraulikmotors angetriebene Meßaggregat mit einer der jeweils ausgegebenen Kraftstoffmenge entsprechenden Absaugleistung angetrieben ist.The invention relates to a motor vehicle filling station with a suction device for the gasification fuel gases emerging from the filling of the motor vehicle tanks by means of a gas pump, which is arranged in a gas return line running between the storage tank and a gas suction opening on the nozzle valve and which also is driven by the measuring unit driven by the fuel pump in the manner of a hydraulic motor a suction power corresponding to the amount of fuel output is driven.

Eine Kraftfahrzeugtankstelle der voranstehend beschriebenen Art ist aus der DE-PS 36 13 453 bekannt. Bei derartigen Kraftfahrzeugtankstellen werden beim Befüllen der Kraftfahrzeugtanks aus diesen entweichende Gase der Vergaserkraftstoffe in den Lagertank der Tankstelle zu etwa 80 bis 90 % zurückgeführt, obwohl es sich bei der Gasrückführung um ein offenes, vakuum-unterstütztes System handelt. Da derartige offene Systeme hinsichtlich des apparativen Aufwandes insbesondere bei der Um- und Nachrüstung vorhandener Tankstellen unter Berücksichtigung vorhandener Kraftfahrzeuge erheblich günstiger sind als geschlossene Systeme, welche ohne Gaspumpe auskommen und deshalb als passive Systeme bezeichnet werden, wird ihr Einsatz in der Praxis bevorzugt.A motor vehicle filling station of the type described above is known from DE-PS 36 13 453. In such motor vehicle filling stations, approximately 80 to 90% of the gases escaping from the carburetor fuels escaping from the gasoline fuels are returned to the storage tank of the filling station, although the gas return is an open, vacuum-assisted system. Since such open systems are considerably less expensive than closed systems, which do not require a gas pump and are therefore referred to as passive systems, with regard to the outlay in terms of equipment, particularly when converting and retrofitting existing petrol stations, taking existing motor vehicles into account, their use in practice is preferred.

Der Erfindung liegt die Aufgabe zugrunde, den sowohl beim Neubau als auch bei der Umrüstung auftretenden Aufwand für die Absaugung der Vergaserkraftstoffgase bei den eingangs beschriebenen, bekannten Kraftfahrzeugtankstellen herabzusetzen, wenn diese mit sogenannten Mehrprodukten-Zapfsäulen ausgestattet sind. Mit Mehrprodukten-Zapfsäulen können an einem Zapfpunkt unterschiedliche Vergaserkraftstoffe und ggf. Dieselkraftstoffe ausgegeben werden, wobei eine gleichzeitige Ausgabe unterschiedlicher Kraftstoffsorten jedoch nicht möglich ist. Unterschiedliche Kraftstoffsorten können nur nacheinander ausgegeben werden.The invention has for its object to reduce the effort involved in the extraction of the carburettor fuel gases in the known motor vehicle filling stations described at the beginning, both in the case of new construction and in the case of retrofitting, if they are equipped with so-called multi-product dispensers. With multi-product dispensers, different gasoline fuels and possibly diesel fuels can be dispensed at one dispensing point, although it is not possible to dispense different types of fuel at the same time. Different types of fuel can only be dispensed one after the other.

Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß bei Mehrprodukten-Zapfsäulen mit zeitlicher Abgabe jeweils nur einer Kraftstoffsorte sämtliche von der Gasansaugöffnung der Zapfventile zur Ausgabe der unterschiedlichen Vergaserkraftstoffe ausgehende Gasrückführleitungen unter Einschaltung jeweils eines Absperrventils gemeinsam an den Saugstutzen der Gaspumpe angeschlossen sind, deren Druckstutzen mit einer sämtliche Lagertanks für Vergaserkraftstoffe verbindenden Gasleitung verbunden ist und die über ein alle Meßaggregate zur Ausgabe der unterschiedlichen Vergaserkraftstoffe mit der Gaspumpe verbindendes Getriebe von der für den jeweiligen Zapfvorgang eingeschalteten Kraftstoffpumpe angetrieben ist.The solution to this problem by the invention is characterized in that in the case of multi-product dispensers with a timed delivery of only one type of fuel in each case, all the gas return lines emanating from the gas intake opening of the dispensing valves for dispensing the different carburettor fuels are connected together to the suction nozzle of the gas pump, each with a shut-off valve, whose pressure port is connected to a gas line connecting all storage tanks for gasoline fuels and which is driven by the fuel pump switched on for the respective dispensing process via a gear unit connecting all measuring units for dispensing the different gasoline fuels to the gas pump.

Mit dem erfindungsgemäßen Vorschlag reduziert sich der zum Auffangen der aus den Kraftfahrzeugtanks austretenden Gase der Vergaserkraftstoffe notwendige Aufwand pro Mehrprodukten-Zapfsäule auf eine einzige Gaspumpe, die über ein mit sämtlichen Meßaggregaten zur Ausgabe von Vergaserkraftstoffen verbundenes Getriebe von der für den jeweiligen Zapfvorgang in Betrieb genommenen Kraftstoffpumpe antreibbar ist und deren Ansaugstutzen jeweils mittels einer Gasrückführleitung mit dem zugehörigen Zapfventil verbunden ist. In diesen Gasrückführleitungen ist jeweils ein Absperrventil angeordnet. Von diesen Absperrventilen wird jeweils nur dasjenige geöffnet, dessen Zapfventil in Betrieb genommen wird. Diese Absperrventile sind elektrisch oder hydraulisch gesteuert und werden vor dem Übergang in den für Kraftstoff- oder Gasförderung vorzugsweise koaxial verlaufenden Zapfschläuchen oder im Zapfventil angeordnet.With the proposal according to the invention, the effort required for collecting the gases of the carburetor fuels escaping from the motor vehicle tanks is reduced to a single gas pump per multi-product gas pump, which is connected to the fuel pump put into operation for the respective fueling process via a gear connected to all measuring units for dispensing carburettor fuels is drivable and the intake manifold is connected to the associated nozzle by means of a gas return line. A shut-off valve is arranged in each of these gas return lines. Of these shut-off valves, only the one whose tap valve is put into operation is opened. These shut-off valves are electrically or hydraulically controlled and are arranged before the transition into the fueling hoses, which preferably run coaxially for fuel or gas delivery, or in the fueling valve.

Die erfindungsgemäße Weiterbildung reduziert somit den Aufwand für die im offenen System erfolgende Absaugung der Vergaserkraftstoffgase bei Mehrprodukten-Zapfsäulen auf ein Minimum. Da sämtliche Lagertanks für Vergaserkraftstoffe gemäß einem weiteren Merkmal der Erfindung mit einer Gasleitung verbunden sind, in welcher die von der Gaspumpe kommende Druckleitung mündet, steht in jedem Fall ausreichend Volumen zur Rückführung der abgesaugten Gase zur Verfügung.The development according to the invention thus reduces the outlay for the extraction of the gasoline fuel gases in the case of multi-product dispensers in an open system to a minimum. Since, according to a further feature of the invention, all storage tanks for carburettor fuels are connected to a gas line in which the pressure line coming from the gas pump opens, sufficient volume is available in any case for the return of the extracted gases.

Bei einer bevorzugten Ausführungsform der Erfindung wird das Getriebe durch sämtliche Meßaggregate mit der Gaspumpe verbindende Getriebezüge gebildet, die jeweils unter Einschaltung eines Freilaufs mit dem zugehörigen Meßaggregat verbunden sind.In a preferred embodiment of the invention, the transmission is formed by all measuring units with gear trains connecting the gas pump, each of which is connected to the associated measuring unit by engaging a freewheel.

Auf der Zeichnung ist ein Ausführungsbeispiel der erfindungsgemäßen Kraftfahrzeugtankstelle schematisch dargestellt, und zwar zeigen:

Fig. 1
eine Seitenansicht einer Mehrprodukten-Zapfsäule,
Fig. 2
eine Draufsicht auf die Zapfsäule nach Anspruch 1 und
Fig. 3
eine schematische Darstellung der Kraftstoff- und der Gasleitungen einschließlich der zugehörigen Aggregate.
An exemplary embodiment of the motor vehicle filling station according to the invention is shown schematically in the drawing, namely:
Fig. 1
a side view of a multi-product petrol pump,
Fig. 2
a plan view of the gas pump according to claim 1 and
Fig. 3
a schematic representation of the fuel and gas lines including the associated units.

Die in den Fig. 1 und 2 schematisch dargestellte Mehrprodukten-Zapfsäule umfaßt beim Ausführungsbeispiel ein dreiteiliges, schrankartiges Unterteil 1, neben dem fünf säulenartige Zapfschlauchgehäuse 2 angeordnet sind; weiterhin ist ein Gehäuse 3 vorhanden, in dem die Anzeigevorrichtungen untergebracht sind, die der besseren Übersichtigkeit wegen auf der Zeichnung nicht dargestellt wurden. Die Zapfschlauchgehäuse 2 besitzen jeweils eine Aufnahme für ein Zapfventil 4, das jeweils am Ende eines vorzugsweise doppelwandigen Zapfschlauches 5 angeordnet ist.The multi-product dispenser shown schematically in FIGS. 1 and 2 in the exemplary embodiment comprises a three-part, cupboard-like lower part 1, next to which five column-like dispensing hose housings 2 are arranged; there is also a housing 3, in which the display devices are accommodated, which for clarity have not been shown in the drawing. The dispensing hose housing 2 each have a receptacle for a dispensing valve 4, which is arranged at the end of a preferably double-walled dispensing hose 5.

Wie die Fig. 1 und 2 erkennen lassen, ist die als Mehrprodukten-Zapfsäule ausgebildete Kraftfahrzeugtankstelle des Ausführungsbeispiels baukastenartig zusammengesetzt. Sie umfaßt beim Ausführungsbeispiel jeweils eine Zapfstelle für Normalbenzin, bleifreies Superbenzin, bleifreies Superplus, verbleites Superbenzin und Diesel.As can be seen in FIGS. 1 and 2, the motor vehicle filling station of the exemplary embodiment, which is designed as a multi-product petrol pump, is composed of a modular system. In the exemplary embodiment, it each includes a tap for normal gasoline, unleaded premium gasoline, unleaded premium gasoline, leaded premium gasoline and diesel.

In der schematischen Darstellung der Fig. 3 sind fünf unterirdische Lagertanks gezeichnet, von denen der Lagertank 6a Normalbenzin, der Lagertank 6b bleifreies Superbenzin, der Lagertank 6c bleifreies Superplus, der Lagertank 6d verbleites Superbenzin und der Lagertank 6e Diesel enthält. Jedem der Lagertanks 6a bis 6e ist eine Kraftstoffpumpe 7a bzw. 7b bzw. 7c bzw. 7d bzw. 7e zugeordnet, die den aus den Lagertanks 6a bis 6e angesaugten Kraftstoff über ein vorzugsweise als Kolbenmesser ausgebildetes Meßaggregat 8a bzw. 8b bzw. 8c bzw. 8d bzw. 8e durch einen Zapfschlauch 5a bzw. 5b bzw. 5c bzw. 5d bzw. 5e dem zugehörigen Zapfventil 4a bzw. 4b bzw. 4c bzw. 4d bzw. 4e zuführt.3 shows five underground storage tanks, of which the storage tank 6a contains normal gasoline, the storage tank 6b unleaded premium gasoline, the storage tank 6c unleaded premium gasoline, the storage tank 6d leaded premium gasoline and the storage tank 6e contain diesel. A fuel pump 7a or 7b or 7c or 7d or 7e is assigned to each of the storage tanks 6a to 6e, which pumps the fuel drawn in from the storage tanks 6a to 6e via a measuring unit 8a or 8b or 8c or 8c or 8d or 8e through a nozzle 5a or 5b or 5c or 5d or 5e to the associated nozzle 4a or 4b or 4c or 4d or 4e.

Obwohl die Zapfventile 4a bis 4e identisch ausgeführt sind, ist in Fig. 3 des besseren Verständnisses wegen das Zapfventil 4a anders dargestellt. Diese Darstellung des Zapfventiles 4a zeigt eine Gasansaugöffnung 10, welche über eine Gasrückführleitung 11a an den Saugstutzen 12a einer Gaspumpe 12 angeschlossen ist. Beim Betrieb dieser Gaspumpe 12 werden auf diese Weise die beim Befüllen eines Kraftfahrzeugtanks aus diesem austretenden Vergaserkraftstoffgase angesaugt. Die schematische Darstellung in Fig. 3 zeigt einen derartigen Kraftfahrzeugtank 13, in dessen Tankstutzen das Zapfventil 4a eingesetzt ist.Although the dispensing valves 4a to 4e are identical, the dispensing valve 4a is shown differently in FIG. 3 for better understanding. This illustration of the nozzle 4a shows a gas suction opening 10 which is connected to the suction nozzle 12a of a gas pump 12 via a gas return line 11a. When this gas pump 12 is operated, the gasifier fuel gases escaping from it when a motor vehicle tank is being filled are sucked in in this way. The schematic representation in FIG. 3 shows such a motor vehicle tank 13, in the tank neck of which the nozzle valve 4a is inserted.

Auch die Zapfventile 4b,4c und 4d sind über eine Gasrückführleitung 11b bzw. 11c bzw. 11d an den Saugstutzen 12a der Gaspumpe 12 angeschlossen. In jeder dieser Gasrückführleitungen 11a bis 11d ist ein Absperrventil 14a bzw. 14b bzw. 14c bzw. 14d angeordnet, die elektrisch und/oder hydraulisch gesteuert werden. Diese Absperrventile 14a bis 14d können auch in das jeweilige Zapfventil 4a bis 4d integriert sein.The nozzle valves 4b, 4c and 4d are also connected to the suction port 12a of the gas pump 12 via a gas return line 11b or 11c or 11d. In each of these gas return lines 11a To 11d, a shut-off valve 14a or 14b or 14c or 14d is arranged, which is controlled electrically and / or hydraulically. These shut-off valves 14a to 14d can also be integrated in the respective nozzle valve 4a to 4d.

Da bei der Ausgabe von Dieselkraftstoffen im Gegensatz zur Ausgabe von Vergaserkraftstoffen kaum Kraftstoffgase entstehen, ist das Zapfventil 4e nicht mit einer Gasrückführleitung ausgestattet.Since, in contrast to the output of carburetor fuels, hardly any fuel gases are produced when diesel fuels are dispensed, the nozzle 4e is not equipped with a gas return line.

Der Druckstutzen 12b der Gaspumpe 12 ist über eine Gasleitung 12c mit den Lagertanks 6a,6b,6c und 6d, welche Vergaserkraftstoffe enthalten, verbunden. Eine Verbindung der Gaspumpe 12 mit dem Lagertank 6e für Diesel ist nicht vorgesehen. Sowohl im Saugstutzen 12a als auch hinter dem Druckstutzen 12b ist jeweils ein Flammdurchschlag-Filter 9 angeordnet.The pressure port 12b of the gas pump 12 is connected via a gas line 12c to the storage tanks 6a, 6b, 6c and 6d, which contain gasoline fuels. A connection of the gas pump 12 to the storage tank 6e for diesel is not provided. A flame arrester filter 9 is arranged in each case in the suction nozzle 12a and behind the pressure nozzle 12b.

Wie sowohl die Darstellung in Fig. 3 als auch in Fig. 2 wiedergibt, ist die Gaspumpe 12 mittels jeweils eines Getriebezuges 15a,15b,15c und 15d mit den Meßaggregaten 8a,8b,8c und 8d verbunden. Die Verbindung der hintereinander geschalteten Getriebezüge 15a bis 15d erfolgt hierbei jeweils über einen Freilauf. Außerdem zeigt Fig. 3, daß jedem Meßaggregat 8a bis 8e ein Impulsgeber 16a bis 16e zugeordnet ist, mit dessen Hilfe die jeweils ausgegebene Flüssigkeitsmenge erfaßt wird.As both the representation in FIG. 3 and in FIG. 2 show, the gas pump 12 is connected to the measuring units 8a, 8b, 8c and 8d by means of a gear train 15a, 15b, 15c and 15d. The connection of the gear trains 15a to 15d connected in series takes place in each case via a freewheel. FIG. 3 also shows that each measuring unit 8a to 8e is assigned a pulse generator 16a to 16e, with the aid of which the quantity of liquid dispensed is detected.

Bei dem in Fig. 3 dargestellten Ausführungsbeispiel wird Normalbenzin aus dem Lagertank 6a über den Zapfschlauch 9a und durch das Zapfventil 4a in den Kraftfahrzeugtank 13 ausgegeben. Der Kraftstoff wird hierbei von der Kraftstoffpumpe 7a aus dem Lagertank 6a angesaugt und über das Meßaggregat 8a durch den Zapfschlauch 9a in den Kraftfahrzeugtank 13 gepumpt. Die im Kraftfahrzeugtank 13 durch den einströmenden Kraftstoff herausgedrückten und die beim Zapfvorgang entstehenden Gase werden mit Hilfe der Gasansaugöffnung 10 am Zapfventil 4a angesaugt. Dieses Ansaugen erfolgt mit Hilfe der Gaspumpe 12 über die Gasrückführleitung 11a. Hierbei ist das Absperrventil 14a geöffnet, wogegen die Absperrventile 14b bis 14d geschlossen sind. Die angesaugten Vergaserkraftstoffgase werden über den Druckstutzen 12b der Gaspumpe 12 über das Rohrsystem den Lagertanks zugeführt.In the exemplary embodiment shown in FIG. 3, normal gasoline is dispensed from the storage tank 6a via the dispensing hose 9a and through the dispensing valve 4a into the motor vehicle tank 13. The fuel is sucked in by the fuel pump 7a out of the storage tank 6a and pumped through the dispensing hose 9a into the motor vehicle tank 13 via the measuring unit 8a. The gases that are pushed out in the motor vehicle tank 13 by the inflowing fuel and that arise during the dispensing process are sucked in at the dispensing valve 4 a with the help of the gas suction opening 10. This suction takes place with the help of the gas pump 12 via the gas return line 11a. The shut-off valve 14a is open, whereas the shut-off valves 14b to 14d are closed. The suctioned gasifier fuel gases are fed to the storage tanks via the pressure connection 12b of the gas pump 12 via the pipe system.

Der Antrieb der Gaspumpe 12 erfolgt beim voranstehenden und in Fig. 3 dargestellten Ausführungsbeispiel durch die Kraftstoffpumpe 7a, welche über das zugehörige Meßaggregat 8a die Gaspumpe 12 antreibt, und zwar mit Hilfe des Getriebezuges 15a. Die mit diesem Getriebezug 15a in Reihe geschalteten Getriebezüge 15b,15c und 15d sind in diesem Fall wirkungslos, da sie jeweils über einen Freilauf mit dem zugehörigen Meßaggregat 8b bzw. 8c bzw. 8d verbunden sind. Bezugszeichenliste: 1 Unterteil 12c Gasleitung 2 Zapfschlauchgehäuse 13 Kraftfahrzeugtank 3 Gehäuse 14a Absperrventil 4a Zapfventil 14b Absperrventil 4b Zapfventil 14c Absperrventil 4c Zapfventil 14d Absperrventil 4d Zapfventil 15a Getriebezug 4e Zapfventil 15b Getriebezug 5 Zapfschlauch 15c Getriebezug 6a Lagertank 15d Getriebezug 6b Lagertank 6c Lagertank 6d Lagertank 6e Lagertank 7a Kraftstoffpumpe 7b Kraftstoffpumpe 7c Kraftstoffpumpe 7d Kraftstoffpumpe 7e Kraftstoffpumpe 8a Meßaggregat 8b Meßaggregat 8c Meßaggregat 8d Meßaggregat 8e Meßaggregat 9 Flammdurchschlag-Filter 10 Gasansaugöffnung 11a Gasrückführleitung 11b Gasrückführleitung 11c Gasrückführleitung 11d Gasrückführleitung 12 Gaspumpe 12a Saugstutzen 12b Druckstutzen In the exemplary embodiment shown above and shown in FIG. 3, the gas pump 12 is driven by the fuel pump 7a, which drives the gas pump 12 via the associated measuring unit 8a, with the aid of the gear train 15a. The gear trains 15b, 15c and 15d connected in series with this gear train 15a are ineffective in this case, since they are each connected to the associated measuring unit 8b or 8c or 8d via a freewheel. Reference symbol list: 1 Lower part 12c Gas pipe 2nd Dispensing hose housing 13 Motor vehicle tank 3rd casing 14a Shut-off valve 4a Nozzle 14b Shut-off valve 4b Nozzle 14c Shut-off valve 4c Nozzle 14d Shut-off valve 4d Nozzle 15a Gear train 4e Nozzle 15b Gear train 5 Dispensing hose 15c Gear train 6a Storage tank 15d Gear train 6b Storage tank 6c Storage tank 6d Storage tank 6e Storage tank 7a Fuel pump 7b Fuel pump 7c Fuel pump 7d Fuel pump 7e Fuel pump 8a Measuring unit 8b Measuring unit 8c Measuring unit 8d Measuring unit 8e Measuring unit 9 Flame arrester filter 10th Gas inlet 11a Gas return line 11b Gas return line 11c Gas return line 11d Gas return line 12th Gas pump 12a Suction port 12b Discharge nozzle

Claims (4)

Kraftfahrzeugtankstelle mit einer Absaugung der beim Befüllen der Kraftfahrzeugtanks (13) aus diesen austretenden Vergaserkraftstoffgase mittels einer Gaspumpe (12), die in einer zwischen dem Lagertank (6a bis 6d) und einer Gasansaugöffnung (10) am Zapfventil (4a bis 4d) verlaufenden Gasrückführleitung (11a bis 11d) angeordnet und die durch das von der Kraftstoffpumpe (7a bis 7d) in der Art eines Hydraulikmotors angetriebene Meßaggregat (8a bis 8d) mit einer der jeweils ausgegebenen Kraftstoffmenge entsprechenden Absaugleistung angetrieben ist,
dadurch gekennzeichnet,
daß bei Mehrprodukten-Zapfsäulen mit zeitlicher Abgabe jeweils nur einer Kraftstoffsorte sämtliche von der Gasansaugöffnung (10) der Zapfventile (4a bis 4d) zur Ausgabe der unterschiedlichen Vergaserkraftstoffe ausgehende Gasrückführleitungen (11a bis 11d) unter Einschaltung jeweils eines Absperrventils (14a bis 14d) gemeinsam an den Saugstutzen (12a) der Gaspumpe (12) angeschlossen sind, deren Druckstutzen (12b) mit einer sämtliche Lagertanks (6a bis 6d) für Vergaserkraftstoffe verbindenden Gasleitung (12c) verbunden ist und die über ein alle Meßaggregate (8a bis 8d) zur Ausgabe der unterschiedlichen Vergaserkraftstoffe mit der Gaspumpe (12) verbindendes Getriebe (15a bis 15d) von der für den jeweiligen Zapfvorgang eingeschalteten Kraftstoffpumpe (7a bis 7d) angetrieben ist.Motor vehicle filling station with a suction device for the gasification fuel gases escaping from these when filling the motor vehicle tanks (13) by means of a gas pump (12), which runs in a gas return line (10a) between the storage tank (6a to 6d) and a gas suction opening (10) on the nozzle valve (4a to 4d) 11a to 11d) and which is driven by the measuring unit (8a to 8d) driven by the fuel pump (7a to 7d) in the manner of a hydraulic motor, with a suction power corresponding to the quantity of fuel that is output,
characterized,
that in the case of multi-product dispensers with delivery of only one type of fuel at a time, all of the gas return lines (11a to 11d) emanating from the gas intake opening (10) of the dispensing valves (4a to 4d) for dispensing the different carburetor fuels, with the activation of a shut-off valve (14a to 14d) the suction nozzle (12a) of the gas pump (12) is connected, the pressure nozzle (12b) of which is connected to a gas line (12c) connecting all storage tanks (6a to 6d) for gasoline fuels and which via one of all measuring units (8a to 8d) for outputting the different carburetor fuels with the gas pump (12) connecting gear (15a to 15d) is driven by the fuel pump (7a to 7d) switched on for the respective tapping process. Kraftfahrzeugtankstelle nach Anspruch 1, dadurch gekennzeichnet, daß das Getriebe durch sämtliche Meßaggregate (8a bis 8d) mit der Gaspumpe (12) verbindende Getriebezüge (15a bis 15d) gebildet ist, die jeweils unter Einschaltung eines Freilaufs mit dem zugehörigen Meßaggregat (8a bis 8d) verbunden sind.Motor vehicle filling station according to claim 1, characterized in that the transmission is formed by all measuring units (8a to 8d) with gear trains (15a to 15d) connecting the gas pump (12), each of which with the activation of a freewheel with the associated measuring unit (8a to 8d) are connected. Kraftfahrzeugtankstelle nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Absperrventile (14a bis 14d) vor dem Übergang der Gasrückführleitungen (11a bis 11d) in die Zapfschläuche (9a bis 9d) angeordnet sind.Motor vehicle filling station according to claim 1 or 2, characterized in that the shut-off valves (14a to 14d) are arranged before the gas return lines (11a to 11d) transition into the fueling hoses (9a to 9d). Kraftfahrzeugtankstelle nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Absperrventile (14a bis 14d) für die Gasrückführleitungen (11a bis 11d) in die Zapfventile (4a bis 4d) integriert sind.Motor vehicle filling station according to claim 1 or 2, characterized in that the shut-off valves (14a to 14d) for the gas return lines (11a to 11d) are integrated in the nozzle valves (4a to 4d).
EP92119596A 1992-11-17 1992-11-17 Petrol station with fuel vapor recovery Expired - Lifetime EP0598928B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT92119596T ATE119855T1 (en) 1992-11-17 1992-11-17 MOTOR VEHICLE STATION WITH FUEL STEAM RECOVERY.
ES92119596T ES2070572T3 (en) 1992-11-17 1992-11-17 GAS STATION FOR AUTOMOBILE SUPPLY WITH INSTALLATION FOR RECOVERY OF FUEL VAPORS.
EP92119596A EP0598928B1 (en) 1992-11-17 1992-11-17 Petrol station with fuel vapor recovery
DE59201683T DE59201683D1 (en) 1992-11-17 1992-11-17 Motor vehicle filling station with fuel vapor recovery.
PL93299046A PL299046A1 (en) 1992-11-17 1993-05-24 Fueling station
HU9303255A HU210381B (en) 1992-11-17 1993-11-16 Gasoline filling station for motor vehicles
GR950400695T GR3015618T3 (en) 1992-11-17 1995-03-24 Petrol station with fuel vapor recovery.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92119596A EP0598928B1 (en) 1992-11-17 1992-11-17 Petrol station with fuel vapor recovery

Publications (2)

Publication Number Publication Date
EP0598928A1 true EP0598928A1 (en) 1994-06-01
EP0598928B1 EP0598928B1 (en) 1995-03-15

Family

ID=8210234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119596A Expired - Lifetime EP0598928B1 (en) 1992-11-17 1992-11-17 Petrol station with fuel vapor recovery

Country Status (7)

Country Link
EP (1) EP0598928B1 (en)
AT (1) ATE119855T1 (en)
DE (1) DE59201683D1 (en)
ES (1) ES2070572T3 (en)
GR (1) GR3015618T3 (en)
HU (1) HU210381B (en)
PL (1) PL299046A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431547C1 (en) * 1994-09-05 1995-10-12 Karlheinz Ehlers Tap valve for filling fuel via tap column into vehicle fuel tank
FR2753961A1 (en) * 1996-10-01 1998-04-03 Schlumberger Ind Sa Fuel dispensing pump appts. for self-service petrol station
DE19652120A1 (en) * 1995-08-15 1998-06-18 Dresser Ind Gasoline vapor recovery device and method
FR2794737A1 (en) * 1999-06-10 2000-12-15 Nuovo Pignone Spa Motor vehicle refuelling pump vapour recuperation system has flow of positive displacement vacuum pump distributed through manifold to return lines
CN1063729C (en) * 1994-09-07 2001-03-28 A·S·J·范·苛里 Liquid pump with degasser and integrated vapor recovery option
FR2909078A1 (en) * 2006-11-24 2008-05-30 Inst Francais Du Petrole Fuel e.g. biofuel, storing system for motor vehicle, has condenser connected to evacuating pipe evacuating condensates to light fuel tanks, where light and heavy fuel tanks have blast pipes opened in manifold that is connected to cistern
US8371341B2 (en) 2009-09-24 2013-02-12 Deleware Capital Formation, Inc. Magnetically actuated vapor recovery valve
CN102966843A (en) * 2012-12-07 2013-03-13 山东彼岸电力科技有限公司 Gas recovery device
CN105020574A (en) * 2015-04-25 2015-11-04 沈军 L-CNG gas station
EP3978425A1 (en) * 2020-09-30 2022-04-06 ELAFLEX HIBY GmbH & Co. KG Dispensing valve with discrete switching gas valve and assembly comprising such a dispensing valve and gas recirculation system

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US4253503A (en) * 1979-06-21 1981-03-03 Texaco Inc. Manifold fuel vapor withdrawal system
DE3613453A1 (en) * 1986-04-21 1987-10-22 Deutsche Geraetebau Gmbh Device for refuelling motor vehicles
EP0443068A1 (en) * 1990-02-22 1991-08-28 Scheidt & Bachmann Gmbh Process and device for removing, during vehicle fuelling, of existing and/or released gases

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Publication number Priority date Publication date Assignee Title
US4253503A (en) * 1979-06-21 1981-03-03 Texaco Inc. Manifold fuel vapor withdrawal system
DE3613453A1 (en) * 1986-04-21 1987-10-22 Deutsche Geraetebau Gmbh Device for refuelling motor vehicles
EP0443068A1 (en) * 1990-02-22 1991-08-28 Scheidt & Bachmann Gmbh Process and device for removing, during vehicle fuelling, of existing and/or released gases

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431547C1 (en) * 1994-09-05 1995-10-12 Karlheinz Ehlers Tap valve for filling fuel via tap column into vehicle fuel tank
EP0703186A1 (en) 1994-09-05 1996-03-27 Karlheinz Ehlers Dispensing nozzle for the filling of a motor vehicle petrol tank
CN1063729C (en) * 1994-09-07 2001-03-28 A·S·J·范·苛里 Liquid pump with degasser and integrated vapor recovery option
DE19652120A1 (en) * 1995-08-15 1998-06-18 Dresser Ind Gasoline vapor recovery device and method
FR2753961A1 (en) * 1996-10-01 1998-04-03 Schlumberger Ind Sa Fuel dispensing pump appts. for self-service petrol station
FR2794737A1 (en) * 1999-06-10 2000-12-15 Nuovo Pignone Spa Motor vehicle refuelling pump vapour recuperation system has flow of positive displacement vacuum pump distributed through manifold to return lines
FR2909078A1 (en) * 2006-11-24 2008-05-30 Inst Francais Du Petrole Fuel e.g. biofuel, storing system for motor vehicle, has condenser connected to evacuating pipe evacuating condensates to light fuel tanks, where light and heavy fuel tanks have blast pipes opened in manifold that is connected to cistern
WO2008071865A1 (en) * 2006-11-24 2008-06-19 Ifp Fuel storage facility and method for filling and/or emptying the tanks of said facility
US8256471B2 (en) 2006-11-24 2012-09-04 Ifp Fuel storage facility and method for filling and/or emptying the tanks of said facility
US8371341B2 (en) 2009-09-24 2013-02-12 Deleware Capital Formation, Inc. Magnetically actuated vapor recovery valve
CN102966843A (en) * 2012-12-07 2013-03-13 山东彼岸电力科技有限公司 Gas recovery device
CN105020574A (en) * 2015-04-25 2015-11-04 沈军 L-CNG gas station
EP3978425A1 (en) * 2020-09-30 2022-04-06 ELAFLEX HIBY GmbH & Co. KG Dispensing valve with discrete switching gas valve and assembly comprising such a dispensing valve and gas recirculation system

Also Published As

Publication number Publication date
HU9303255D0 (en) 1994-03-28
ATE119855T1 (en) 1995-04-15
PL299046A1 (en) 1994-05-30
HUT66262A (en) 1994-10-28
ES2070572T3 (en) 1995-06-01
GR3015618T3 (en) 1995-06-30
DE59201683D1 (en) 1995-04-20
EP0598928B1 (en) 1995-03-15
HU210381B (en) 1995-04-28

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