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 PDFInfo
- 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
- 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.)
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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
-
- 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.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Sampling And Sample Adjustment (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Nozzles (AREA)
- Detergent Compositions (AREA)
Abstract
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
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.
- 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
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
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
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
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
Die Ventile 13, 14, 15 können auch als Rückschlagventile
ausgebildet sein oder von den handbetätigten Ventilen
an den Zapfpistolen ausgebildet werden.The
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
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
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
Claims (8)
- 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).
- Device according to Claim 1, characterised in that the dead volume of the measuring device is less than 20 cm3.
- 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.
- 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).
- Device according to Claim 4, characterised in that the downstream valves (13, 14, 15) are non-return valves.
- Device according to Claim 4 or 5, characterised in that the downstream valves are allocated to the respective fuelling nozzles (2, 3, 4).
- 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.
- 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.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19626523A DE19626523A1 (en) | 1996-07-02 | 1996-07-02 | Device for the metered delivery of several similar liquids |
DE19626523 | 1996-07-02 | ||
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 |
Family
ID=7798656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97923998A Expired - Lifetime EP0914291B1 (en) | 1996-07-02 | 1997-05-24 | Device for the measured transferring of several homogeneous liquids of the same kind |
Country Status (13)
Country | Link |
---|---|
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) | NO990029L (en) |
NZ (1) | NZ333252A (en) |
WO (1) | WO1998000359A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE218505T1 (en) * | 1998-01-14 | 2002-06-15 | Scheidt & Bachmann Gmbh | METHOD AND DEVICE FOR DISPENSING DIFFERENT FUELS USING THE SAME PUMP GUN |
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 |
Family Cites Families (3)
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 |
-
1996
- 1996-07-02 DE DE19626523A patent/DE19626523A1/en not_active Ceased
-
1997
- 1997-05-24 CZ CZ984355A patent/CZ435598A3/en unknown
- 1997-05-24 AT AT97923998T patent/ATE197701T1/en not_active IP Right Cessation
- 1997-05-24 NZ NZ333252A patent/NZ333252A/en unknown
- 1997-05-24 DK DK97923998T patent/DK0914291T3/en active
- 1997-05-24 ES ES97923998T patent/ES2152672T3/en not_active Expired - Lifetime
- 1997-05-24 CA CA002259551A patent/CA2259551A1/en not_active Abandoned
- 1997-05-24 JP JP10503777A patent/JP2000513309A/en not_active Ceased
- 1997-05-24 DE DE59702664T patent/DE59702664D1/en not_active Expired - Fee Related
- 1997-05-24 BR BR9710094A patent/BR9710094A/en not_active IP Right Cessation
- 1997-05-24 WO PCT/EP1997/002671 patent/WO1998000359A1/en not_active Application Discontinuation
- 1997-05-24 AU AU29605/97A patent/AU713158B2/en not_active Ceased
- 1997-05-24 EP EP97923998A patent/EP0914291B1/en not_active Expired - Lifetime
-
1999
- 1999-01-04 NO NO990029A patent/NO990029L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
NO990029D0 (en) | 1999-01-04 |
DE19626523A1 (en) | 1998-01-08 |
JP2000513309A (en) | 2000-10-10 |
AU713158B2 (en) | 1999-11-25 |
AU2960597A (en) | 1998-01-21 |
NO990029L (en) | 1999-01-04 |
ATE197701T1 (en) | 2000-12-15 |
NZ333252A (en) | 1999-05-28 |
CA2259551A1 (en) | 1998-01-08 |
BR9710094A (en) | 1999-08-10 |
DE59702664D1 (en) | 2000-12-28 |
CZ435598A3 (en) | 1999-07-14 |
EP0914291A1 (en) | 1999-05-12 |
WO1998000359A1 (en) | 1998-01-08 |
ES2152672T3 (en) | 2001-02-01 |
DK0914291T3 (en) | 2001-01-29 |
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