EP0914291B1 - Device for the measured transferring of several homogeneous liquids of the same kind - Google Patents

Device for the measured transferring of several homogeneous liquids of the same kind Download PDF

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Publication number
EP0914291B1
EP0914291B1 EP97923998A EP97923998A EP0914291B1 EP 0914291 B1 EP0914291 B1 EP 0914291B1 EP 97923998 A EP97923998 A EP 97923998A EP 97923998 A EP97923998 A EP 97923998A EP 0914291 B1 EP0914291 B1 EP 0914291B1
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EP
European Patent Office
Prior art keywords
valves
liquid
measuring device
downstream
allocated
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EP97923998A
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German (de)
French (fr)
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EP0914291A1 (en
Inventor
Manfred Köpl
Jörg Segatz
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Gilbarco Verwaltungs GmbH
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Marconi Commerce Systems GmbH and Co KG
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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
    • 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
    • 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
    • B67D7/425—Filling nozzles including components powered by electricity or light

Definitions

  • the invention relates to a device for metered Dispensing several liquids of the same type, in particular a fuel pump for liquid fuels.
  • a fuel pump for different liquid fuels for example for different Gasoline
  • the respective dispensing device is with a conveyor connection with an assigned storage tank connected. Between dispenser and associated Each tank connection has a storage tank assigned pump and an associated liquid measuring device.
  • the invention has for its object a generic Device advantageous in use and manufacturing technology easy to train.
  • a generic device is less expensive and smaller to manufacture and, moreover, easier to maintain.
  • a common liquid measuring device is provided for a multiplicity of similar, mutually detachable liquids, which is switched according to the liquid to be drawn off via a valve arrangement into a corresponding conveying connection between the storage tank and the dispensing device.
  • the invention is based on the finding that only one dispensing device can be used when dispensing liquids in a generic device, while the other dispensing devices are inactive.
  • a common display device for the dispensed volume is provided.
  • the volume that remains in the common liquid measuring device after the dispensing process is below the associated calibration tolerance, so that it is acceptable because of the similarity of the liquid to be drawn off that someone who, for. B. regular petrol, small amounts of super petrol, which the predecessor has drawn.
  • a screw spindle arrangement is selected as the liquid measuring device, as described in DE-OS 41 42 062.
  • the dead volume of the two interlocking screw spindles, one of which is connected to a revolution counter, is very low. It is approximately 13 cm 3 . With a typical minimum tap volume of 5 l, this value is below the calibration tolerance.
  • the dead volume is advantageously less than 20 cm 3 .
  • a valve is connected downstream of each pump and a valve is connected upstream of each dispensing device.
  • the resulting two valve arrangements are then switched in the manner of a three-way or multi-way valve.
  • the common liquid measuring device Between these valve arrangements is the common liquid measuring device, so that the liquid measuring device can be switched into the conveying connection between the dispensing device and the associated storage tank by suitable switching of the three-way or multi-way valve arrangement.
  • the valve downstream of the respective pump and the valve upstream of the respective associated nozzle can be interconnected.
  • the valves arranged downstream of the liquid measuring device can be designed as check valves.
  • the valves downstream of the liquid measuring device can be assigned to the nozzles and can be operated manually.
  • An electronic circuit can then be used to ensure that, in order to avoid incorrect refueling, the liquid supply is switched off when more than one fuel nozzle is operated at the same time.
  • the actuation of the manually operable valve arranged on the fuel nozzle emits an electrical signal which is fed to an electrical control circuit which simultaneously blocks the upstream valves when two such signals occur.
  • the valves arranged in the nozzle can have a check function.
  • the valves can preferably be designed such that they only open at a predetermined admission pressure, for example 0.8 bar, so that when actuated in front of more than one nozzle it is ensured that no liquid from the actuated nozzles due to the closed valves can leak.
  • the liquid measuring device 1 has a housing 21, in which two intersecting cylindrical Breakthroughs are provided. In this cylindrical Breakthroughs lie in sealing sliding Contact the respective inner walls of the cylinders each screw spindles 20, which with their Interlocking threads so that one through the spindle assembly flowing fluid the two Screw spindles 20 set in rotation.
  • the two Spindles are supported at the ends.
  • One of the spindles carries a detector wheel 24, which is designed as a pulse generator and have, for example, one or more magnets can.
  • a sensor 22 is provided in the housing, which the signals emitted by the detector wheel 24 for example via a magnetic detector into electrical signals converts which via a cable 23 to a measuring circuit be directed.
  • this liquid measuring device is based on the DE 41 42 062 referenced. The measurement conversion and the The measured values are output in the exemplary embodiment according to DE 41 42 062, with each switched Funding connection individual calibration and conversion parameters for volume and price display on the common display device are provided.
  • the tank device explained as an exemplary embodiment, as shown schematically in FIG. 1, has a total of three nozzles 2, 3, 4. Each of the Fuel nozzles 2, 3, 4 is over a not shown Hose and via valves 13 to 18 and one each associated pump 5, 6, 7 with associated storage tanks 8, 9, 10 connected.
  • valves downstream of the respective pumps 5, 6, 7 16, 17, 18 lead to a common outlet Output, which in the common liquid measuring device 1 goes so that when opening the valve 18th via the pump 7 liquid from the storage tank 10 and when valve 17 opens, liquid via pump 6 from the storage tank 9 and when the valve 16 opens Liquid via the pump 5 from the storage tank 8 is pumped through the liquid measuring device.
  • the valves 16, 17, 18 can never be opened together. It only one of these valves can be opened at a time. If the valve 16 is opened, the tap device opens 2 upstream valve 13; valve 17 opened, the one upstream of the dispensing device 3 opens Valve 14 and when valve 18 is opened, so opens the valve upstream of the dispensing device 4 15.
  • the valves 13, 14, 15, which to the respective Dispensing devices 2, 3, 4 open, go from a common Entrance in which the liquid measuring device 1 ends.
  • the valves 13, 14, 15 can be a valve measuring block 11 may be assigned, which also as Multi-way valve is formed.
  • the valves of the multi-way valves 11, 12 are switched in pairs, so that the liquid measuring device in the respective conveyor connection between the storage tanks 8 to 10 and the Fuel nozzles 2 to 4 can be switched.
  • the volume of the screw counter is preferably less than 20 cm 3 , preferably 13 cm 3 , so that with a minimum delivery of, for example, 5 l, the dead volume of the liquid measuring device is below the limit of the calibration tolerance.
  • the measuring device 1 is connected to a transducer connected to a display device on which tapped volume and one corresponding to the tapped volume Price is shown. Simultaneously with the Quantity determination / display, price determination / display.
  • valves 13, 14, 15 can also be used as check valves be trained or by the manually operated valves be formed on the nozzles.
  • the invention are two on each pump 5, 6, 7 Tank units T1, T2 connected.
  • There are a total three pumps 5, 6, 7 are provided in front of each pump a filter device 25 through which the liquid, here the fuel from the respective storage tank 8, 9, 10 is pumped.
  • the pump 5, 6, 7 is each a check valve 26 downstream. After this Check valve 26 branches the pipeline each in one of the two tank units T1, T2.
  • the downstream valves are in the nozzles 2, 3, 4 housed themselves.
  • the one in the nozzle Valves are housed by one on the Fuel nozzle 2, 3, 4 provided actuating lever activated.
  • the actuation of the actuation lever is activated at the same time an electrical switch, which one signals electronic circuit, not shown, that one of the three nozzles 2, 3, 4 is actuated has been.
  • the electronic circuit then controls the associated upstream valve 16, 17, 18 in the Open position and leaves the assigned pump 5, 6, 7 start if this is not already running.
  • the one in the nozzle arranged manually operated valves are so biased that it can only be printed on open at least 0.8 bar.

Abstract

The invention concerns a device for the measured transferring of several liquids of the same kind, in particular a petrol pump for liquid fuels wherein the liquid extracted from a tank (8, 9, 10) using one of the pumps (5, 6, 7) allocated to the respective liquid is transferred from one of the fuel dispensers (2, 3, 4) allocated to the respective liquid whilst being measured at the same time. What is new is a common liquid measuring device (1) for the liquids with valves (13 to 18) arranged upstream and downstream forming a delivery connection from one of the pumps (5 to 7) via the measuring device (1) to the allocated fuel dispenser (2, 3, 4).

Description

Die Erfindung betrifft eine Vorrichtung zur dosierten Abgabe von mehreren gleichartigen Flüssigkeiten, insbesondere eine Tanksäule für flüssige Kraftstoffe.The invention relates to a device for metered Dispensing several liquids of the same type, in particular a fuel pump for liquid fuels.

Vorrichtungen gemäß Gattungsbegriff des Anspruches 1 sind im Stand der Technik bekannt (siehe z.B. US 3 199 727 A). Eine Tanksäule für verschiedene flüssige Kraftstoffe, bspw. für verschiedene Benzine, besitzt eine Vielzahl von Zapfvorrichtungen, bspw. Zapfpistolen, welche jeweils endseitig an einem Zapfschlauch angeordnet sind. Jede dieser Zapfvorrichtungen ist einer bestimmten Sorte Kraftstoff zugeordnet. Die jeweilige Zapfvorrichtungen ist mit einer Förderverbindung mit einem zugeordneten Vorratstank verbunden. Zwischen Zapfvorrichtung und zugeordnetem Vorratstank besitzt jede Förderverbindung eine zugeordnete Pumpe und eine zugeordnete Flüssigkeits-Meßvorrichtung. Besitzt eine Tanksäule bspw. drei Zapfvorrichtungen für Normalbenzin, Superbenzin und Superplus, so werden insgesamt drei Meßvorrichtungen für einen im wesentlichen gleichartigen Kraftstoff verwendet. Derartige Meßvorrichtungen sind teuer und müssen von Zeit zu Zeit nachgeeicht werden.Devices according to the preamble of claim 1 are known in the art (see e.g. US 3 199 727 A). A fuel pump for different liquid fuels, for example for different Gasoline, has a variety of dispensing devices, For example, nozzles, which each end a dispensing hose are arranged. Each of these dispensers is a certain type of fuel assigned. The respective dispensing device is with a conveyor connection with an assigned storage tank connected. Between dispenser and associated Each tank connection has a storage tank assigned pump and an associated liquid measuring device. Has a fuel pump, for example, three dispensing devices for regular gasoline, super gasoline and superplus, So a total of three measuring devices for one in essentially similar fuel used. Such Measuring devices are expensive and need to be used from time to time Time to be verified.

Ebenso ist eine andere Vorrichtung zur Abgabe von Kraftstoffen aus europäischen Patentanmeldung nach Art. 54(3) EPÜ EP 0 723 929 A bekannt.Another device for dispensing is also Fuels from European patent applications according to Art. 54 (3) EPC EP 0 723 929 A is known.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung gebrauchsvorteilhaft und herstellungstechnisch einfach weiterzubilden.The invention has for its object a generic Device advantageous in use and manufacturing technology easy to train.

Gelöst wird die Aufgabe durch die in den Ansprüchen angegebene Erfindung.The task is solved by the in the claims specified invention.

Zufolge der erfindungsgemäßen Ausgestaltung ist eine gattungsgemäße Vorrichtung preiswerter und kleiner herstellbar und darüber hinaus einfacher zu warten. Erfindungsgemäß ist eine gemeinsame Flüssigkeits-Meßvorrichtung für eine Vielzahl von gleichartigen, ineinander lösbaren Flüssigkeiten vorgesehen, welche entsprechend der zu zapfenden Flüssigkeit über eine Ventilanordnung in eine entsprechende Förderverbindung zwischen Vorratstank und Zapfvorrichtung geschaltet wird. Die Erfindung geht von der Erkenntnis aus, daß beim Zapfen von Flüssigkeiten bei einer gattungsgemäßen Vorrichtung immer nur eine Zapfeinrichtung benutzbar ist, während die anderen Zapfvorrichtungen inaktiv sind. Es ist eine gemeinsame Anzeigevorrichtung für das abgegebene Volumen vorgesehen. Es hat sich herausgestellt, daß die Volumenmenge, die nach Beendigung des Zapfvorganges in der gemeinsamen Flüssigkeits-Meßvorrichtung verbleibt unterhalb der zugehörigen Eichtoleranz liegt, so daß es wegen der Gleichartigkeit der zu zapfenden Flüssigkeit hinnehmbar ist, daß jemand, der z. B. Normalbenzin tankt, geringe Mengen Superbenzin tankt, welches der Vorgänger gezapft hat. Gemäß der Erfindung wird als Flüssigkeits-Meßvorrichtung eine Schraubenspindelanordnung gewählt, wie sie in der DE-OS 41 42 062 beschrieben ist. Das Totvolumen der beiden ineinandergreifenden Schraubenspindeln, von denen eine an ein Umdrehungszählwerk angeschlossen ist, ist sehr gering. Es liegt etwa bei 13 cm 3 . Bei einer typischen minimalen Zapfmenge von 5 l, liegt dieser Wert dann unterhalb der Eichtoleranz. In vorteilhafter Weise ist das Totvolumen kleiner als 20 cm 3 . In einer bevorzugten Anordnung der erfindungsgemäßen Vorrichtung ist jeder Pumpe ein Ventil nachgeschaltet und jeder Zapfvorrichtung ein Ventil vorgeschaltet. Die sich dabei ergebenden zwei Ventilanordnungen sind dann in der Art eines Drei- oder Mehrwege-Ventils geschaltet. Zwischen diesen Ventilanordnungen liegt die gemeinsame Flüssigkeits-Meßvorrichtung, so daß durch geeignete Schaltung der Drei- oder Mehrwege-Ventilanordnung die Flüssigkeits-Meßvorrichtung in die Förderverbindung zwischen Zapfvorrichtung und zugehörigem Vorratstank geschaltet werden kann. Das der jeweiligen Pumpe nachgeordnete Ventil und das der jeweilig zugehörigen Zapfpistole vorgeschaltete Ventil kann dabei zusammengeschaltet sein. In einer Variante können die der Flüssigkeits-Meßvorrichtung nachgeordneten Ventile als Rückschlagventile ausgebildet sein. In einer weiteren Variante können die der Flüssigkeits-Meßvorrichtung nachgeordneten Ventile den Zapfpistolen zugeordnet sein und handbetätigt sein. Durch eine elektronische Schaltung kann dann sichergestellt sein, daß zur Vermeidung einer Fehlbetankung die Flüssigkeitszufuhr abgeschaltet wird, wenn mehr als eine Zapfpistole gleichzeitig betätigt wird. Hierzu kann vorgesehen sein, daß die Betätigung des an der Zapfpistole angeordneten handbetätigbaren Ventils ein elektrisches Signal abgibt, welches einer elektrischen Steuerschaltung zugeführt wird, welche bei dem Auftreten von zwei derartigen Signalen gleichzeitig die vorgeordneten Ventile sperrt. Es ist damit eine elektrische Sperre gegeben. Die in der Zapfpistole angeordneten Ventile können eine Rückschlagfunktion haben. Die Ventile können bevorzugt so ausgebildet sein, daß sie nur bei einem vorbestimmten Vordruck, bspw. 0,8 Bar öffnen, so daß bei einer Betätigung vor mehr als einer Zapfpistole sichergestellt ist, daß zufolge des Geschlossenseins der vorgeordneten Ventile keine Flüssigkeit aus den betätigten Zapfpistolen austreten kann.As a result of the configuration according to the invention, a generic device is less expensive and smaller to manufacture and, moreover, easier to maintain. According to the invention, a common liquid measuring device is provided for a multiplicity of similar, mutually detachable liquids, which is switched according to the liquid to be drawn off via a valve arrangement into a corresponding conveying connection between the storage tank and the dispensing device. The invention is based on the finding that only one dispensing device can be used when dispensing liquids in a generic device, while the other dispensing devices are inactive. A common display device for the dispensed volume is provided. It has been found that the volume that remains in the common liquid measuring device after the dispensing process is below the associated calibration tolerance, so that it is acceptable because of the similarity of the liquid to be drawn off that someone who, for. B. regular petrol, small amounts of super petrol, which the predecessor has drawn. According to the invention, a screw spindle arrangement is selected as the liquid measuring device, as described in DE-OS 41 42 062. The dead volume of the two interlocking screw spindles, one of which is connected to a revolution counter, is very low. It is approximately 13 cm 3 . With a typical minimum tap volume of 5 l, this value is below the calibration tolerance. The dead volume is advantageously less than 20 cm 3 . In a preferred arrangement of the device according to the invention, a valve is connected downstream of each pump and a valve is connected upstream of each dispensing device. The resulting two valve arrangements are then switched in the manner of a three-way or multi-way valve. Between these valve arrangements is the common liquid measuring device, so that the liquid measuring device can be switched into the conveying connection between the dispensing device and the associated storage tank by suitable switching of the three-way or multi-way valve arrangement. The valve downstream of the respective pump and the valve upstream of the respective associated nozzle can be interconnected. In a variant, the valves arranged downstream of the liquid measuring device can be designed as check valves. In a further variant, the valves downstream of the liquid measuring device can be assigned to the nozzles and can be operated manually. An electronic circuit can then be used to ensure that, in order to avoid incorrect refueling, the liquid supply is switched off when more than one fuel nozzle is operated at the same time. For this purpose it can be provided that the actuation of the manually operable valve arranged on the fuel nozzle emits an electrical signal which is fed to an electrical control circuit which simultaneously blocks the upstream valves when two such signals occur. There is an electrical lock. The valves arranged in the nozzle can have a check function. The valves can preferably be designed such that they only open at a predetermined admission pressure, for example 0.8 bar, so that when actuated in front of more than one nozzle it is ensured that no liquid from the actuated nozzles due to the closed valves can leak.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand beigefügter Zeichnungen erläutert. An embodiment of the invention is as follows explained with the accompanying drawings.

Es zeigen

Fig. 1
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung am Beispiel einer Tanksäule für drei flüssige Kraftstoffe und
Fig. 2
einen Schnitt durch eine Flüssigkeits-Meßvorrichtung gemäß DE 41 42 062, wie sie beim Ausführungsbeispiel gemäß Fig. 1 Verwendung findet, und
Fig. 3
ein weiteres Ausführungsbeispiel in einer schematischen Darstellung.
Show it
Fig. 1
is a schematic representation of a device according to the invention using the example of a fuel pump for three liquid fuels and
Fig. 2
a section through a liquid measuring device according to DE 41 42 062, as used in the embodiment of FIG. 1, and
Fig. 3
a further embodiment in a schematic representation.

Die Flüssigkeits-Meßvorrichtung 1 besitzt ein Gehäuse 21, in welchem zwei sich schneidende zylinderförmige Durchbrechungen vorgesehen sind. In diesen zylindrischen Durchbrechungen liegen in dichtender gleitender Anlage an den jeweiligen Innenwandungen der Zylinder jeweils Schraubenspindeln 20 ein, welche mit ihren Schraubengängen ineinandergreifen, so daß eine durch die Spindelanordnung strömende Flüssigkeit die beiden Schraubenspindeln 20 in Drehung versetzt. Die beiden Spindeln sind endseitig gelagert. Eine der Spindeln trägt ein Detektorrad 24, welches als Impulsgeber ausgestaltet ist und bspw. ein oder mehrere Magneten aufweisen kann. Im Gehäuse ist ein Sensor 22 vorgesehen, welcher die vom Detektorrad 24 abgegebenen Signale bspw. über einen Magnetdetektor in elektrische Signale umwandelt, welche über ein Kabel 23 zu einer Meßschaltung geleitet werden. Hinsichtlich der weiteren Gestaltung dieser Flüssigkeits-Meßvorrichtung wird auf die DE 41 42 062 verwiesen. Die Meßwertumformung und die Ausgabe der Meßwerte erfolgt beim Ausführungsbeispiel entsprechend der DE 41 42 062, wobei zu jeder geschalteten Förderverbindung individuelle Eich- und Umrechnungsparameter zur Volumenausgabe und Preisausgabe auf der gemeinsamen Anzeigevorrichtung vorgesehen sind.The liquid measuring device 1 has a housing 21, in which two intersecting cylindrical Breakthroughs are provided. In this cylindrical Breakthroughs lie in sealing sliding Contact the respective inner walls of the cylinders each screw spindles 20, which with their Interlocking threads so that one through the spindle assembly flowing fluid the two Screw spindles 20 set in rotation. The two Spindles are supported at the ends. One of the spindles carries a detector wheel 24, which is designed as a pulse generator and have, for example, one or more magnets can. A sensor 22 is provided in the housing, which the signals emitted by the detector wheel 24 for example via a magnetic detector into electrical signals converts which via a cable 23 to a measuring circuit be directed. With regard to the further design this liquid measuring device is based on the DE 41 42 062 referenced. The measurement conversion and the The measured values are output in the exemplary embodiment according to DE 41 42 062, with each switched Funding connection individual calibration and conversion parameters for volume and price display on the common display device are provided.

Die als Ausführungsbeispiel erläuterte Tankvorrichtung, wie sie in der Fig. 1 schematisch dargestellt ist, besitzt insgesamt drei Zapfpistolen 2, 3, 4. Jede der Zapfpistolen 2, 3, 4 ist über einen nicht dargestellten Schlauch und über Ventile 13 bis 18 und jeweils eine zugehörige Pumpe 5, 6, 7 mit zugehörigen Vorratstanks 8, 9, 10 verbunden.The tank device explained as an exemplary embodiment, as shown schematically in FIG. 1, has a total of three nozzles 2, 3, 4. Each of the Fuel nozzles 2, 3, 4 is over a not shown Hose and via valves 13 to 18 and one each associated pump 5, 6, 7 with associated storage tanks 8, 9, 10 connected.

Die den jeweiligen Pumpen 5, 6, 7 nachgeordneten Ventile 16, 17, 18 münden ausgangsseitig in einen gemeinsamen Ausgang, welcher in die gemeinsame Flüssigkeits-Meßvorrichtung 1 geht, so daß bei Öffnung des Ventils 18 über die Pumpe 7 Flüssigkeit aus dem Vorratstank 10 und bei Öffnung des Ventils 17 Flüssigkeit über die Pumpe 6 aus dem Vorratstank 9 und bei Öffnung des Ventils 16 Flüssigkeit über die Pumpe 5 aus dem Vorratstank 8 durch die Flüssigkeits-Meßvorrichtung gepumpt wird. Die Ventile 16, 17, 18 sind nie gemeinsam öffenbar. Es kann nur jeweils eins dieser Ventile geöffnet werden. Wird das Ventil 16 geöffnet, so öffnet das der Zapfvorrichtung 2 vorgeordnete Ventil 13; wird das Ventil 17 geöffnet, so öffnet das der Zapfvorrichtung 3 vorgeordnete Ventil 14 und wenn das Ventil 18 geöffnet wird, so öffnet das der Zapfvorrichtung 4 vorgeordnete Ventil 15. Die Ventile 13, 14, 15, welche zu den jeweiligen Zapfvorrichtungen 2, 3, 4 münden, gehen von einem gemeinsamen Eingang aus, in welchen die Flüssigkeits-Meßvorrichtung 1 mündet. The valves downstream of the respective pumps 5, 6, 7 16, 17, 18 lead to a common outlet Output, which in the common liquid measuring device 1 goes so that when opening the valve 18th via the pump 7 liquid from the storage tank 10 and when valve 17 opens, liquid via pump 6 from the storage tank 9 and when the valve 16 opens Liquid via the pump 5 from the storage tank 8 is pumped through the liquid measuring device. The valves 16, 17, 18 can never be opened together. It only one of these valves can be opened at a time. If the valve 16 is opened, the tap device opens 2 upstream valve 13; valve 17 opened, the one upstream of the dispensing device 3 opens Valve 14 and when valve 18 is opened, so opens the valve upstream of the dispensing device 4 15. The valves 13, 14, 15, which to the respective Dispensing devices 2, 3, 4 open, go from a common Entrance in which the liquid measuring device 1 ends.

In einer besonderen Ausgestaltung sind die Ventile 16, 17, 18 einem gemeinsamen Ventilblock 12 zugeordnet, welcher als Mehrwege-Ventil gestaltet ist. In ebensolcher Weise können die Ventile 13, 14, 15 einem Ventilmeßblock 11 zugeordnet sein, welcher ebenfalls als Mehrwege-Ventil ausgebildet ist. Die Ventile der Mehrwege-Ventile 11, 12 werden paarweise geschaltet, so daß die Flüssigkeits-Meßvorrichtung in die jeweilige Förderverbindung zwischen den Vorratstanks 8 bis 10 und den Zapfpistolen 2 bis 4 geschaltet werden kann.In a special embodiment, the valves 16, 17, 18 assigned to a common valve block 12, which is designed as a multi-way valve. In the same The valves 13, 14, 15 can be a valve measuring block 11 may be assigned, which also as Multi-way valve is formed. The valves of the multi-way valves 11, 12 are switched in pairs, so that the liquid measuring device in the respective conveyor connection between the storage tanks 8 to 10 and the Fuel nozzles 2 to 4 can be switched.

Das Volumen des Schraubenspindelzählers liegt bevorzugt unter 20 cm 3 , bevorzugt bei 13 cm 3 , so daß bei einer Mindestabgabe von bspw. 5 1 das Totvolumen der Flüssigkeits-Meßvorrichtung unter der Grenze der Eichtoleranz liegt.The volume of the screw counter is preferably less than 20 cm 3 , preferably 13 cm 3 , so that with a minimum delivery of, for example, 5 l, the dead volume of the liquid measuring device is below the limit of the calibration tolerance.

Die Meßvorrichtung 1 ist über einen Meßwertumformer an einer Anzeigeeinrichtung angeschlossen, auf welcher das gezapfte Volumen und ein dem gezapften Volumen entsprechender Preis dargestellt wird. Gleichzeitig mit der Mengenbestimmung/-anzeige erfolgt die Preisbestimmung/-anzeige.The measuring device 1 is connected to a transducer connected to a display device on which tapped volume and one corresponding to the tapped volume Price is shown. Simultaneously with the Quantity determination / display, price determination / display.

Die Ventile 13, 14, 15 können auch als Rückschlagventile ausgebildet sein oder von den handbetätigten Ventilen an den Zapfpistolen ausgebildet werden.The valves 13, 14, 15 can also be used as check valves be trained or by the manually operated valves be formed on the nozzles.

Bei dem in der Fig. 3 dargestellten Ausführungsbeispiel der Erfindung sind an jeweils einer Pumpe 5, 6, 7 zwei Tankeinheiten T1, T2 angeschlossen. Es sind insgesamt drei Pumpen 5, 6, 7 vorgesehen, vor jeder Pumpe sitzt eine Filtereinrichtung 25, durch welche die Flüssigkeit, hier der Kraftstoff aus dem jeweiligen Vorratstank 8, 9, 10 gepumpt wird. Der Pumpe 5, 6, 7 ist jeweils ein Rückschlagventil 26 nachgeordnet. Nach dem Rückschlagventil 26 verzweigt sich die Rohrleitung jeweils in eine der beiden Tankeinheiten T1, T2.In the embodiment shown in FIG. 3 the invention are two on each pump 5, 6, 7 Tank units T1, T2 connected. There are a total three pumps 5, 6, 7 are provided in front of each pump a filter device 25 through which the liquid, here the fuel from the respective storage tank 8, 9, 10 is pumped. The pump 5, 6, 7 is each a check valve 26 downstream. After this Check valve 26 branches the pipeline each in one of the two tank units T1, T2.

Bei diesem Ausführungsbeispiel befinden sich unmittelbar in Strömungsrichtung gesehen vor der Flüssigkeits-Meßvorrichtung ein die den jeweiligen Flüssigkeiten zugeordneten Ventile 16, 17, 18. Unmittelbar nach der Flüssigkeits-Meßvorrichtung 1 sind keine Ventile vorgesehen. Die nachgeordneten Ventile sind in den Zapfpistolen 2, 3, 4 selbst untergebracht. Die in den Zapfpistolen untergebrachten Ventile werden durch einen an der Zapfpistole 2, 3, 4 vorgesehenen Betätigungshebel aktiviert. Die Betätigung des Betätigungshebels aktiviert gleichzeitig einen elektrischen Schalter, welcher einer nichtdargestellten elektronischen Schaltung signalisiert, daß eine der drei Zapfpistolen 2, 3, 4 betätigt worden ist. Die elektronische Schaltung steuert dann das zugehörige vorgeordnete Ventil 16, 17, 18 in die Offenstellung und läßt die zugeordnete Pumpe 5, 6, 7 anlaufen falls diese noch nicht läuft. Die in den Zapfpistolen angeordneten handbetätigbaren Ventile sind derart vorgespannt, daß sie nur bei einem Vordruck von mindestens 0,8 Bar öffnen.In this embodiment there are immediate seen in the direction of flow in front of the liquid measuring device a the the respective liquids associated valves 16, 17, 18. Immediately after the No liquid measuring device 1 is provided. The downstream valves are in the nozzles 2, 3, 4 housed themselves. The one in the nozzle Valves are housed by one on the Fuel nozzle 2, 3, 4 provided actuating lever activated. The actuation of the actuation lever is activated at the same time an electrical switch, which one signals electronic circuit, not shown, that one of the three nozzles 2, 3, 4 is actuated has been. The electronic circuit then controls the associated upstream valve 16, 17, 18 in the Open position and leaves the assigned pump 5, 6, 7 start if this is not already running. The one in the nozzle arranged manually operated valves are so biased that it can only be printed on open at least 0.8 bar.

Wird nun bei einer betätigten Zapfpistole eine zweite Zapfpistole betätigt, so wird ein zugeordnetes elektrisches Signal erzeugt, welches der elektrischen Schaltung zugeführt wird. Erkennt die elektrische Schaltung, daß zwei Zapfpistolen gleichzeitig betätigt sind, so werden alle vorgeordneten Ventile 16, 17, 18 geschlossen, so daß sichergestellt ist, daß immer nur durch eine Zapfpistole 2, 3, 4 gleichzeitig Flüssigkeit gezapft werden kann. Bei geschloseenen Ventilen 16, 17, 18 sinkt der Druck im zapfschlauch unter den Öffnungsdruck, so daß die handbetätigbaren Ventile der Zapfpistolen 2, 3, 4 geschlossen sind.Now when a nozzle is activated, a second one Fuel nozzle operated, so an assigned electrical Signal generated which of the electrical circuit is fed. Detects the electrical circuit, that two nozzles are actuated simultaneously, so all upstream valves 16, 17, 18 are closed, so that it is ensured that only by a nozzle 2, 3, 4 simultaneously tapped liquid can be. With closed valves 16, 17, 18 the pressure in the tap hose drops below the opening pressure, so that the manually operated valves of the nozzle 2, 3, 4 are closed.

Claims (8)

  1. Device for the dosed delivery of several similar liquids, particularly a fuel pump for liquid fuels, such that the liquid delivered from one respective supply tank (8, 9, 10) by means of a pump (5, 6, 7) allocated to one of the respective liquids is supplied with simultaneous volume determination from a fuelling nozzle (2, 3, 4) allocated to the respective liquid, characterised in that there is a common liquid measuring device (1) in the form of a screw spindle arrangement for the liquids, with valves (13 to 18) arranged upstream and downstream of it to provide a supply connection from one pump (5 to 7) respectively, through the measuring device (1) to the allocated fuelling nozzle (2, 3, 4).
  2. Device according to Claim 1, characterised in that the dead volume of the measuring device is less than 20 cm3.
  3. Device according to one or more of the previous claims, characterised in that the liquid measuring device (1) has a three-way or multiple-way valve arrangement (11, 12) arranged upstream and downstream of it.
  4. Device according to one or more of the previous claims, characterised in that the valves (13, 14, 15) of the downstream multiple-way arrangement (11) are connected in paired fashion to the valves (16, 17, 18) of the upstream multiple-way valve arrangement (12).
  5. Device according to Claim 4, characterised in that the downstream valves (13, 14, 15) are non-return valves.
  6. Device according to Claim 4 or 5, characterised in that the downstream valves are allocated to the respective fuelling nozzles (2, 3, 4).
  7. Device according to one or more of the previous claims, characterised in that the valves of the fuelling nozzles (2, 3, 4) are manually operated and are connected to an electrical signal generator which conveys a valve activation signal to an electronic circuit.
  8. Device according to Claim 7, characterised in that all the upstream valves (16, 17, 18) are put into the closed condition by the electronic circuit if more than one fuelling nozzle (2, 3, 4) is operated.
EP97923998A 1996-07-02 1997-05-24 Device for the measured transferring of several homogeneous liquids of the same kind Expired - Lifetime EP0914291B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19626523 1996-07-02
DE19626523A DE19626523A1 (en) 1996-07-02 1996-07-02 Device for the metered delivery of several similar liquids
PCT/EP1997/002671 WO1998000359A1 (en) 1996-07-02 1997-05-24 Device for the measured transferring of several homogeneous liquids of the same kind

Publications (2)

Publication Number Publication Date
EP0914291A1 EP0914291A1 (en) 1999-05-12
EP0914291B1 true EP0914291B1 (en) 2000-11-22

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EP97923998A Expired - Lifetime EP0914291B1 (en) 1996-07-02 1997-05-24 Device for the measured transferring of several homogeneous liquids of the same kind

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EP (1) EP0914291B1 (en)
JP (1) JP2000513309A (en)
AT (1) ATE197701T1 (en)
AU (1) AU713158B2 (en)
BR (1) BR9710094A (en)
CA (1) CA2259551A1 (en)
CZ (1) CZ435598A3 (en)
DE (2) DE19626523A1 (en)
DK (1) DK0914291T3 (en)
ES (1) ES2152672T3 (en)
NO (1) NO990029D0 (en)
NZ (1) NZ333252A (en)
WO (1) WO1998000359A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59804310D1 (en) * 1998-01-14 2002-07-11 Scheidt & Bachmann Gmbh Method and device for dispensing different fuels with the same nozzle
SE517869C2 (en) * 1998-09-17 2002-07-23 Dresser Wayne Ab fuel Dispenser
DE19850030A1 (en) * 1998-10-30 2000-05-11 Kraeutler Ges M B H & Co Device for measuring the amount of liquid in petrol pumps of motor vehicle petrol stations
US6131768A (en) * 1999-05-25 2000-10-17 Tokheim Corporation Multi-fuel dispenser employing a single meter with bypass loop and multiple hoses
ITMI991294A1 (en) * 1999-06-10 2000-12-10 Nuovo Pignone Spa COLUMN WITH MULTIPLE PISTOLS FOR FUEL DISPENSERS WITH VAPOR RECOVERY
SE523217C2 (en) * 2001-10-12 2004-04-06 Dresser Wayne Ab Device for fuel dispensing unit, fuel dispensing unit, set of parts for providing a device for a fuel dispensing unit, method for providing a detachable filter unit and method for replacing a filter unit
ES2286932B1 (en) * 2005-12-26 2008-10-16 Medicion Y Transporte, S.A. CUTTING VALVE IN TWO STAGES, WITH DEFAULT AND SELECTION FUNCTION, IN THE CONTROL OF PETROLIFER SUPPLIES AND MEASUREMENT PROCEDURE.
JP4473328B2 (en) * 2008-08-25 2010-06-02 株式会社オーバル Axial flow meter

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Publication number Priority date Publication date Assignee Title
NL286143A (en) * 1961-12-12 1900-01-01
DE4142062A1 (en) * 1991-12-19 1993-07-01 Salzkotten Tankanlagen Metering system for fuel delivery pump at filling station
US5630528A (en) * 1995-01-27 1997-05-20 Gilbarco, Inc. Method and apparatus for metering and dispensing fluid, particulary fuel

Also Published As

Publication number Publication date
NZ333252A (en) 1999-05-28
EP0914291A1 (en) 1999-05-12
ES2152672T3 (en) 2001-02-01
DK0914291T3 (en) 2001-01-29
BR9710094A (en) 1999-08-10
WO1998000359A1 (en) 1998-01-08
AU2960597A (en) 1998-01-21
ATE197701T1 (en) 2000-12-15
CZ435598A3 (en) 1999-07-14
AU713158B2 (en) 1999-11-25
CA2259551A1 (en) 1998-01-08
NO990029L (en) 1999-01-04
DE19626523A1 (en) 1998-01-08
DE59702664D1 (en) 2000-12-28
NO990029D0 (en) 1999-01-04
JP2000513309A (en) 2000-10-10

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