EP0480088B1 - Dispensing device for liquid fuels - Google Patents

Dispensing device for liquid fuels Download PDF

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Publication number
EP0480088B1
EP0480088B1 EP90119455A EP90119455A EP0480088B1 EP 0480088 B1 EP0480088 B1 EP 0480088B1 EP 90119455 A EP90119455 A EP 90119455A EP 90119455 A EP90119455 A EP 90119455A EP 0480088 B1 EP0480088 B1 EP 0480088B1
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EP
European Patent Office
Prior art keywords
fuel
gas
pump
hydraulic motor
hose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90119455A
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German (de)
French (fr)
Other versions
EP0480088A1 (en
Inventor
Bernd Dipl.-Ing. Kirberg
Josef Welters
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
Application filed by Scheidt and Bachmann GmbH filed Critical Scheidt and Bachmann GmbH
Priority to AT90119455T priority Critical patent/ATE89810T1/en
Priority to ES199090119455T priority patent/ES2041098T3/en
Priority to DE9090119455T priority patent/DE59001573D1/en
Priority to EP90119455A priority patent/EP0480088B1/en
Publication of EP0480088A1 publication Critical patent/EP0480088A1/en
Application granted granted Critical
Publication of EP0480088B1 publication Critical patent/EP0480088B1/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
    • B67D7/0478—Vapour recovery systems constructional features or components
    • B67D7/048—Vapour flow control means, e.g. valves, pumps
    • B67D7/0482—Vapour flow control means, e.g. valves, pumps using pumps driven at different flow rates
    • 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
    • B67D7/84—Casings, cabinets or frameworks; Trolleys or like movable supports

Definitions

  • the invention relates to a device for dispensing liquid fuels from a storage tank by means of a nozzle provided with a fuel nozzle and gas nozzle, to which the fuel is supplied by a fuel pump arranged in the lower part of a fuel pump with the interposition of a measuring unit with a pulse generator for determining the amount of fuel flowing through, and which Extraction of the gas escaping during fuel delivery is provided with a gas recirculation channel which is connected to a gas line opening into the storage tank, in which a gas pump is arranged which can be driven by a hydraulic motor which in turn is driven by the fuel delivered by the fuel pump.
  • Such devices for dispensing liquid fuels from a storage tank are known from DE-PS 36 13 453.
  • this known device is used as a hydraulic motor, e.g. drives the gas pump via a gear transmission, uses the measuring unit, which in turn is driven by the fuel delivered by the fuel pump in the manner of a liquid motor. This ensures that the amount of gas extracted is proportional to the amount of fuel dispensed.
  • the invention has for its object to develop a device for dispensing liquid fuels of the type described in such a way that with little technical effort and without intervention in the sealed parts of the pump, existing pumps can be easily retrofitted.
  • the solution to this problem by the invention is characterized in that the hydraulic motor and the gas pump are formed as vane units in a common housing and with a common shaft and between the fuel pump and the measuring unit outside the verifiable and sealed parts of the fuel pump, which essentially consist of the measuring unit , the pulse generator, a calculator and display devices for the amount and price of the fuel dispensed are arranged.
  • both the hydraulic motor and the gas pump as vane units in a common housing and with a common shaft results in a compact unit that can be retrofitted even in the limited space of existing dispensers. Since the installation of the hydraulic motor takes place according to the invention between the fuel pump and the measuring unit, no parts of the gas pump that are subject to calibration and lead sealing are touched, so that re-calibration of the gas pump is not necessary either in the case of subsequent installation or in later maintenance and repair work.
  • the speed of the common shaft of the hydraulic motor and gas pump can be monitored for the purpose of comparison with the pulses received by the computer from the pulse generator driven by the measuring unit.
  • the speed of the common shaft of the hydraulic motor and gas pump must be in a certain ratio to the number of pulses generated by the pulse generator and recorded by the computer.
  • the device shown in Fig. 1 is used to dispense liquid fuels from a storage tank 1, which is normally underground.
  • the fuel in this storage tank 1 is drawn in via a fuel line by means of a fuel pump 3, which is arranged together with a gas separator in a so-called monoblock in the lower part of a fuel dispenser 4.
  • the fuel drawn in by the fuel pump 3 from the storage tank 1 is fed to a measuring unit 5 which is usually designed as a piston knife and is provided with a pulse generator 6.
  • This pulse generator 6 generates one of the measuring unit 5 determined flow rate corresponding number of pulses, which are forwarded via a pulse line 7 to a computer 8, which determines the output quantity determined by the measuring unit 5 and the associated price of the fuel, and controls display devices 9 for displaying the delivery quantity and associated price.
  • the fuel emerging from the measuring unit 5 passes through an adapter 10 into a fuel nozzle 11, at the end of which a fuel nozzle 12 with a gas suction nozzle 12a is arranged for filling the respective fuel tank.
  • the device In order to prevent the fuel containing volatile constituents from being released and the gas displaced by the liquid when filling the fuel tank from escaping into the atmosphere, the device is provided with a gas recirculation into the storage tank 1.
  • This gas return comprises a gas return duct 13 running in the dispensing hose 11, which is preferably formed by the dispensing hose 11 consisting of two coaxial running hoses, one medium, for example the fuel, flowing in the outer hose and the inner hose being designed as a gas return duct 13.
  • a gas line 14 is connected to this return duct 13, which leads into the storage tank 1.
  • a gas pump 15 is arranged in the gas line 14, which is driven by a hydraulic motor 16, which in turn is in the fuel line 2 is arranged between the fuel pump 3 and the measuring unit 5.
  • the gas pump 15 and the hydraulic motor 16 are designed as vane cell units which are arranged in a common housing 17.
  • This cylindrical housing 17 is closed at the end by a housing cover 18, which is sealed off from the housing 17 by means of seals 19.
  • a shaft 21 is mounted in the housing covers 18 via roller bearings 20, on which two cellular wheels 22 are fastened by means of a wedge 23.
  • Pallets 24 are slidably guided in radial slots of these cellular wheels 22. These pallets 24 interact with an eccentric bore of an intermediate housing 25 surrounding the respective cellular wheel 22.
  • the connection piece 27 for the inflow and outflow of both the gas pump 15 and the hydraulic motor 16 are - as is apparent in particular from FIG. 5 - formed in the respective housing cover 18.
  • the vane cell unit shown in FIGS. 2 to 5, which forms the gas pump 15 and the hydraulic motor 16 driving this gas pump 15, is installed as a compact unit in the fuel line 2 between the fuel pump 3 and the measuring unit 5, as is shown in the schematic representation of FIG. 1 can be seen.
  • the gas pump 15 and the hydraulic motor 16 are shown as individual units for better understanding.
  • the gas line 14 is connected to the gas pump 15 with the installation of a flame arrester 28.

Abstract

The invention relates to a device for dispensing liquid fuels from a storage tank (1) by means of a petrol pump hose (11) provided with a filler pipe (12) and gas intake nozzle (12a), to which hose the fuel is fed by a fuel pump (3) by way of a metering unit (5) with pulse generator (6) for determining the quantity of fuel flowing through it and which is provided with a gas return duct (13) for drawing off the gas escaping when the fuel is delivered. The duct is connected to a gas line (14) opening into the storage tank (1), in which line a gas pump (15) is arranged which is driven by a hydraulic motor (16), which in turn is driven by the fuel delivered by the fuel pump (3). In order to create a compact construction without affecting those parts of the petrol pump (4) subject to calibration, the hydraulic motor (16) and the gas pump (15) are designed as rotary vane units in a common housing (17) and with a common shaft (21). This rotary vane unit is arranged between the fuel pump (3) and the metering unit (5). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Ausgabe flüssiger Kraftstoffe aus einem Lagertank mittels eines mit einer Zapfpistole und Gasansaugdüse versehenen Zapfschlauches, dem der Kraftstoff durch eine im unteren Teil einer Zapfsäule angeordnete Kraftstoffpumpe unter Zwischenschaltung eines Meßaggregats mit Impulsgeber zur Ermittlung der durchfließenden Kraftstoffmenge zugeführt wird und der zur Absaugung des bei der Kraftstoffabgabe entweichenden Gases mit einem Gasrückführkanal versehen ist, der an eine in dem Lagertank mündende Gasleitung angeschlossen ist, in der eine Gaspumpe angeordnet ist, die von einem Hydraulikmotor antreibbar ist, der seinerseits von dem durch die Kraftstoffpumpe geförderten Kraftstoff angetrieben wird.The invention relates to a device for dispensing liquid fuels from a storage tank by means of a nozzle provided with a fuel nozzle and gas nozzle, to which the fuel is supplied by a fuel pump arranged in the lower part of a fuel pump with the interposition of a measuring unit with a pulse generator for determining the amount of fuel flowing through, and which Extraction of the gas escaping during fuel delivery is provided with a gas recirculation channel which is connected to a gas line opening into the storage tank, in which a gas pump is arranged which can be driven by a hydraulic motor which in turn is driven by the fuel delivered by the fuel pump.

Derartige Vorrichtungen zur Ausgabe flüssiger Kraftstoffe aus einem Lagertank sind aus der DE-PS 36 13 453 bekannt. Bei dieser bekannten Vorrichtung wird als Hydraulikmotor, der z.B. über ein Zahnradgetriebe die Gaspumpe antreibt, das Meßaggregat verwendet, welches seinerseits von dem durch die Kraftstoffpumpe geförderten Kraftstoff in der Art eines Flüssigkeitsmotors angetrieben wird. Hierdurch wird erreicht, daß die abgesaugte Gasmenge proportional der ausgegebenen Kraftstoffmenge ist.Such devices for dispensing liquid fuels from a storage tank are known from DE-PS 36 13 453. In this known device is used as a hydraulic motor, e.g. drives the gas pump via a gear transmission, uses the measuring unit, which in turn is driven by the fuel delivered by the fuel pump in the manner of a liquid motor. This ensures that the amount of gas extracted is proportional to the amount of fuel dispensed.

Diese bekannte Ausbildung hat den Nachteil, daß beim Nachrüsten vorhandener Zapfsäulen zwecks Einbau einer Gasrückführung und bei eventuell notwendig werdenden Wartungsarbeiten und Reparaturen an der Gaspumpe Eingriffe in die eichpflichtigen und damit verplombten Teile der Zapfsäule erforderlich werden, die wiederum eine Eichung und Verplombung der Zapfsäule nach sich ziehen. Außerdem ist der mechanische Antrieb der Gaspumpe mittels des bekannten Zahnradgetriebes aufwendig, störanfällig und teuer.This known design has the disadvantage that when retrofitting existing gas pumps for the purpose of installing a gas recirculation and if maintenance work and repairs to the gas pump may become necessary, interventions in the parts of the gas pump that are subject to calibration and thus sealed are required, which in turn require calibration and sealing of the gas pump pull. In addition, the mechanical drive of the gas pump by means of the known gear transmission is complex, prone to failure and expensive.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Ausgabe flüssiger Kraftstoffe der eingangs beschriebenen Art derart weiterzubilden, daß mit geringem technischen Aufwand und ohne Eingriff in die verplombten Teile der Zapfsäule eine Nachrüstung vorhandener Zapfsäulen auf einfache Weise möglich ist.The invention has for its object to develop a device for dispensing liquid fuels of the type described in such a way that with little technical effort and without intervention in the sealed parts of the pump, existing pumps can be easily retrofitted.

Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß der Hydraulikmotor und die Gaspumpe als Flügelzellenaggregate in einem gemeinsamen Gehäuse und mit gemeinsamer Welle ausgebildet und zwischen der Kraftstoffpumpe und dem Meßaggregat außerhalb der eichpflichtigen und verplombten Teile der Zapfsäule, die im wesentlichen aus dem Meßaggregat, dem Impulsgeber, einem Rechner und Anzeigegeräten für die Menge und den Preis des ausgegebenen Kraftstoffes bestehen, angeordnet sind.The solution to this problem by the invention is characterized in that the hydraulic motor and the gas pump are formed as vane units in a common housing and with a common shaft and between the fuel pump and the measuring unit outside the verifiable and sealed parts of the fuel pump, which essentially consist of the measuring unit , the pulse generator, a calculator and display devices for the amount and price of the fuel dispensed are arranged.

Die erfindungsgemäße Ausbildung sowohl des Hydraulikmotors als auch der Gaspumpe als Flügelzellenaggregate in einem gemeinsamen Gehäuse und mit gemeinsamer Welle ergibt eine kompakte Baueinheit, die auch in den begrenzten Raum vorhandener Zapfsäulen nachträglich eingebaut werden kann. Da der Einbau des Hydraulikmotors erfindungsgemäß zwischen Kraftstoffpumpe und dem Meßaggregat erfolgt, werden keine eichpflichtigen und verplombten Teile der Zapfsäule berührt, so daß sowohl bei einem nachträglichen Einbau als auch bei späteren Wartungs- und Reparaturarbeiten Nacheichungen der Zapfsäule nicht erforderlich werden.The inventive design of both the hydraulic motor and the gas pump as vane units in a common housing and with a common shaft results in a compact unit that can be retrofitted even in the limited space of existing dispensers. Since the installation of the hydraulic motor takes place according to the invention between the fuel pump and the measuring unit, no parts of the gas pump that are subject to calibration and lead sealing are touched, so that re-calibration of the gas pump is not necessary either in the case of subsequent installation or in later maintenance and repair work.

Gemäß einem weiteren Merkmal der Erfindung kann die Drehzahl der gemeinsamen Welle von Hydraulikmotor und Gaspumpe zwecks Vergleich mit den vom Rechner empfangenen Impulsen des vom Meßaggregat angetriebenen Impulsgebers überwacht werden. Hierdurch ist es auf einfache Weise möglich, einerseits die Funktion der Gaspumpe und andererseits des Meßaggregates und Impulsgebers zu überwachen, da die Drehzahl der gemeinsamen Welle von Hydraulikmotor und Gaspumpe in einem bestimmten Verhältnis zur Anzahl der vom Impulsgeber erzeugten und vom Rechner aufgenommenen Impulse stehen muß.According to a further feature of the invention, the speed of the common shaft of the hydraulic motor and gas pump can be monitored for the purpose of comparison with the pulses received by the computer from the pulse generator driven by the measuring unit. Hereby it is easily possible to monitor the function of the gas pump on the one hand and on the other hand the measuring unit and pulse generator, since the speed of the common shaft of the hydraulic motor and gas pump must be in a certain ratio to the number of pulses generated by the pulse generator and recorded by the computer.

Auf der Zeichnung ist ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung zur Ausgabe flüssiger Kraftstoffe dargestellt, und zwar zeigen:

Fig. 1
eine schematische Ansicht der Vorrichtung,
Fig. 2
einen Längsschnitt durch das aus Hydraulikmotor und Gaspumpe bestehende Flügelzellenaggregat,
Fig. 3
einen Querschnitt gemäß der Schnittlinie III - III in Fig. 2,
Fig. 4
einen weiteren Querschnitt gemäß der Schnittlinie IV - IV in Fig. 2 und
Fig. 5
einen Schnitt gemäß der Schnittlinie V - V in Fig. 4.
The drawing shows an exemplary embodiment of the device according to the invention for dispensing liquid fuels, namely:
Fig. 1
a schematic view of the device,
Fig. 2
a longitudinal section through the vane cell assembly consisting of hydraulic motor and gas pump,
Fig. 3
3 shows a cross section along the section line III-III in FIG. 2,
Fig. 4
another cross section along the section line IV - IV in Fig. 2 and
Fig. 5
3 shows a section along the section line V - V in FIG. 4.

Die in Fig. 1 dargestellte Vorrichtung dient zur Ausgabe flüssiger Kraftstoffe aus einem Lagertank 1, der normalerweise unter der Erde liegt. Der in diesem Lagertank 1 befindliche Kraftstoff wird über eine Kraftstoffleitung mittels einer Kraftstoffpumpe 3 angesaugt, die gemeinsam mit einem Gasabscheider in einem sogenannten Monoblock im unteren Teil einer Zapfsäule 4 angeordnet ist.The device shown in Fig. 1 is used to dispense liquid fuels from a storage tank 1, which is normally underground. The fuel in this storage tank 1 is drawn in via a fuel line by means of a fuel pump 3, which is arranged together with a gas separator in a so-called monoblock in the lower part of a fuel dispenser 4.

Der von der Kraftstoffpumpe 3 aus dem Lagertank 1 angesaugte Kraftstoff wird einem üblicherweise als Kolbenmesser ausgebildeten Meßaggregat 5 zugeführt, das mit einem Impulsgeber 6 versehen ist. Dieser Impulsgeber 6 erzeugt eine der vom Meßaggregat 5 ermittelten Durchflußmenge entsprechende Anzahl von Impulsen, die über eine Impulsleitung 7 an einen Rechner 8 weitergeleitet werden, der die vom Meßaggregat 5 festgestellte Ausgabemenge und den zugehörigen Preis des Kraftstoffes ermittelt und Anzeigegeräte 9 zur Anzeige von Abgabemenge und zugehörigem Preis steuert.The fuel drawn in by the fuel pump 3 from the storage tank 1 is fed to a measuring unit 5 which is usually designed as a piston knife and is provided with a pulse generator 6. This pulse generator 6 generates one of the measuring unit 5 determined flow rate corresponding number of pulses, which are forwarded via a pulse line 7 to a computer 8, which determines the output quantity determined by the measuring unit 5 and the associated price of the fuel, and controls display devices 9 for displaying the delivery quantity and associated price.

Der aus dem Meßaggregat 5 austretende Kraftstoff gelangt über einen Adapter 10 in einen Zapfschlauch 11, an dessen Ende eine Zapfpistole 12 mit einer Gasansaugdüse 12a zum Befüllen des jeweiligen Kraftstoffbehälters angeordnet ist.The fuel emerging from the measuring unit 5 passes through an adapter 10 into a fuel nozzle 11, at the end of which a fuel nozzle 12 with a gas suction nozzle 12a is arranged for filling the respective fuel tank.

Um das beim Abgabevorgang des flüchtige Bestandteile enthaltenden Kraftstoffes entstehende und das beim Befüllen des Kraftstofftanks durch die Flüssigkeit verdrängte Gas vor einem Entweichen in die Atmosphäre zu bewahren, ist die Vorrichtung mit einer Gasrückführung in den Lagertank 1 versehen. Diese Gasrückführung umfaßt einen im Zapfschlauch 11 verlaufenden Gasrückführkanal 13, der vorzugsweise dadurch gebildet wird, daß der Zapfschlauch 11 aus zwei koaxial verlaufenden Schläuchen besteht, wobei das eine Medium, beispielsweise der Kraftstoff, im Außenschlauch fließt und der Innenschlauch als Gasrückführkanal 13 ausgebildet ist. Im Bereich des Adapters 10 ist an diesen Garückführkanal 13 eine Gasleitung 14 angeschlossen, die im Lagertank 1 mündet.In order to prevent the fuel containing volatile constituents from being released and the gas displaced by the liquid when filling the fuel tank from escaping into the atmosphere, the device is provided with a gas recirculation into the storage tank 1. This gas return comprises a gas return duct 13 running in the dispensing hose 11, which is preferably formed by the dispensing hose 11 consisting of two coaxial running hoses, one medium, for example the fuel, flowing in the outer hose and the inner hose being designed as a gas return duct 13. In the area of the adapter 10, a gas line 14 is connected to this return duct 13, which leads into the storage tank 1.

Um das bei der Kraftstoffabgabe entstehende und das aus dem zu befüllenden Kraftstoffbehälter entweichende Gas über die Gasleitung 14 in den Lagertank 1 zu fördern, ist in der Gasleitung 14 eine Gaspumpe 15 angeordnet, die von einem Hydraulikmotor 16 angetrieben wird, der seinerseits in der Kraftstoffleitung 2 zwischen der Kraftstoffpumpe 3 und dem Meßaggregat 5 angeordnet ist.In order to convey the gas produced during the fuel dispensing and the gas escaping from the fuel tank to be filled into the storage tank 1 via the gas line 14, a gas pump 15 is arranged in the gas line 14, which is driven by a hydraulic motor 16, which in turn is in the fuel line 2 is arranged between the fuel pump 3 and the measuring unit 5.

Gemäß den Fig. 2 bis 4 sind die Gaspumpe 15 und der Hydraulikmotor 16 als Flügelzellenaggregate ausgebildet, die in einem gemeinsamen Gehäuse 17 angeordnet sind. Dieses zylindrische Gehäuse 17 ist stirnseitig jeweils durch einen Gehäusedeckel 18 verschlossen, der mittels Dichtungen 19 gegenüber dem Gehäuse 17 abgedichtet ist. Über Wälzlager 20 ist in den Gehäusedeckeln 18 eine Welle 21 gelagert, auf der zwei Zellenräder 22 mittels jeweils eines Keils 23 befestigt sind. In radialen Schlitzen dieser Zellenräder 22 sind Paletten 24 verschiebbar geführt. Diese Paletten 24 wirken mit einer exzentrischen Bohrung eines das jeweilige Zellenrad 22 umgebenden Zwischengehäuses 25 zusammen. Zwischen diesen Zwischengehäusen 25 und den zugehörigen Zellenrädern 22 ist ein ebenfalls mittels einer Dichtung 19 gegenüber dem Gehäuse 17 abgedichteter Zwischenboden 26 angeordnet, so daß sich insgesamt innerhalb des Gehäuses 17 die Gaspumpe 15 und der Hydraulikmotor 16 ergeben. Die Anschlußstutzen 27 für den Zu- und Abfluß sowohl der Gaspumpe 15 als auch des Hydraulikmotors 16 sind - wie insbesondere aus Fig. 5 hervorgeht - im jeweiligen Gehäusedeckel 18 ausgebildet.2 to 4, the gas pump 15 and the hydraulic motor 16 are designed as vane cell units which are arranged in a common housing 17. This cylindrical housing 17 is closed at the end by a housing cover 18, which is sealed off from the housing 17 by means of seals 19. A shaft 21 is mounted in the housing covers 18 via roller bearings 20, on which two cellular wheels 22 are fastened by means of a wedge 23. Pallets 24 are slidably guided in radial slots of these cellular wheels 22. These pallets 24 interact with an eccentric bore of an intermediate housing 25 surrounding the respective cellular wheel 22. Between these intermediate housings 25 and the associated cellular wheels 22 there is an intermediate floor 26 which is also sealed by means of a seal 19 with respect to the housing 17, so that the gas pump 15 and the hydraulic motor 16 result overall within the housing 17. The connection piece 27 for the inflow and outflow of both the gas pump 15 and the hydraulic motor 16 are - as is apparent in particular from FIG. 5 - formed in the respective housing cover 18.

Das in den Fig. 2 bis 5 dargestellte Flügelzellenaggregat, welches die Gaspumpe 15 und den diese Gaspumpe 15 antreibenden Hydraulikmotor 16 bildet, wird als kompakte Baueinheit in die Kraftstoffleitung 2 zwischen Kraftstoffpumpe 3 und Meßaggregat 5 eingebaut, wie dies in der schematischen Darstellung der Fig. 1 zu erkennen ist. In dieser Darstellung sind die Gaspumpe 15 und der Hydraulikmotor 16 des besseren Verständnisses wegen als Einzelaggregate dargestellt. Es ist weiterhin zu erkennen, daß die Gasleitung 14 jeweils unter Einbau einer Flammendurchschlagssicherung 28 an die Gaspumpe 15 angeschlossen ist.The vane cell unit shown in FIGS. 2 to 5, which forms the gas pump 15 and the hydraulic motor 16 driving this gas pump 15, is installed as a compact unit in the fuel line 2 between the fuel pump 3 and the measuring unit 5, as is shown in the schematic representation of FIG. 1 can be seen. In this illustration, the gas pump 15 and the hydraulic motor 16 are shown as individual units for better understanding. It can also be seen that the gas line 14 is connected to the gas pump 15 with the installation of a flame arrester 28.

Bezugszeichenliste:Reference symbol list:

11
LagertankStorage tank
22nd
KraftstoffleitungFuel line
33rd
KraftstoffpumpeFuel pump
44th
ZapfsäulePetrol pump
55
MeßaggregatMeasuring unit
66
ImpulsgeberImpulse generator
77
ImpulsleitungImpulse line
88th
Rechnercomputer
99
AnzeigegerätDisplay device
1010th
Adapteradapter
1111
ZapfschlauchDispensing hose
1212
ZapfpistoleFuel nozzle
12a12a
GasansaugdüseGas intake nozzle
1313
GasrückführkanalGas return duct
1414
GasleitungGas pipe
1515
GaspumpeGas pump
1616
HydraulikmotorHydraulic motor
1717th
Gehäusecasing
1818th
GehäusedeckelHousing cover
1919th
Dichtungpoetry
2020th
Wälzlagerroller bearing
2121
Wellewave
2222
ZellenradCell wheel
2323
Keilwedge
2424th
Palettepalette
2525th
ZwischengehäuseIntermediate housing
2626
ZwischenbodenMezzanine
2727
AnschlußstutzenConnecting piece
2828
FlammendurchschlagssicherungFlame arrester

Claims (2)

  1. Device for dispensing liquid fuels from a storage tank by means of a filling hose provided with a filling pistol and gas-intake nozzle, which hose is supplied with the fuel by a fuel pump disposed in the lower part of a filling column, a measuring unit with a pulse generator being interposed for determining the through-flow volume of the fuel, and which hose, for the extraction of the gas escaping upon the delivery of the fuel, is provided with a gas-return passage comected to a gas pipe which opens out in the storage tank and in which there is disposed a gas pump which can be driven by a hydraulic motor, the hydraulic motor being driven in turn by the fuel conveyed by the fuel pump, characterised in that the hydraulic motor (16) and the gas pump (15) are configured as vane-cell units in a common housing (17) and having a common shaft (21) and are disposed between the fuel pump (3) and the measuring unit (5) outside the calibration-demanding and lead-sealed parts of the filling column (4), which parts essentially comprise the measuring unit (5), the pulse generator (6), a computer (8) and display instruments (9) showing the volume and price of the discharged fuel.
  2. Device according to Claim 1, characterised in that the rotation speed of the common shaft (21) of the hydraulic motor (16) and gas pump (15) is monitored for the purpose of comparison with the pulses received by the computer (8).
EP90119455A 1990-10-11 1990-10-11 Dispensing device for liquid fuels Expired - Lifetime EP0480088B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT90119455T ATE89810T1 (en) 1990-10-11 1990-10-11 DEVICE FOR DISPENSING LIQUID FUELS.
ES199090119455T ES2041098T3 (en) 1990-10-11 1990-10-11 DEVICE FOR THE SUPPLY OF LIQUID FUELS.
DE9090119455T DE59001573D1 (en) 1990-10-11 1990-10-11 DEVICE FOR DISPENSING LIQUID FUELS.
EP90119455A EP0480088B1 (en) 1990-10-11 1990-10-11 Dispensing device for liquid fuels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90119455A EP0480088B1 (en) 1990-10-11 1990-10-11 Dispensing device for liquid fuels

Publications (2)

Publication Number Publication Date
EP0480088A1 EP0480088A1 (en) 1992-04-15
EP0480088B1 true EP0480088B1 (en) 1993-05-26

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ID=8204600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119455A Expired - Lifetime EP0480088B1 (en) 1990-10-11 1990-10-11 Dispensing device for liquid fuels

Country Status (4)

Country Link
EP (1) EP0480088B1 (en)
AT (1) ATE89810T1 (en)
DE (1) DE59001573D1 (en)
ES (1) ES2041098T3 (en)

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DE4415964C2 (en) * 1994-05-07 1996-06-05 Rhein Ruhr Maschinenbau Gmbh D Gas station
US5850856A (en) * 1996-10-18 1998-12-22 Delaware Capital Formation, Inc. Gasoline dispenser with integral, internal self powered vapor recovery pump
CA2463477C (en) * 2004-04-13 2012-03-27 Guy Lamontagne Calibrator for fuel pump
US20080023489A1 (en) * 2006-07-31 2008-01-31 Illinois Tool Works Inc. Remote metering station and applicator heads interconnected by means of relatively short hoses with universal connectors
CN112301230B (en) * 2020-09-04 2022-07-29 武汉科技大学 Hollow electroslag remelting consumable electrode, preparation method thereof and electroslag remelting method
CN112729482A (en) * 2020-12-21 2021-04-30 赣州久创科技有限公司 Automatic verification system for oiling machine
CN112729483A (en) * 2020-12-21 2021-04-30 赣州久创科技有限公司 Oil storage tank body for automatic calibrating device of oiling machine

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GB1551714A (en) * 1978-03-07 1979-08-30 Texaco Development Corp Closed fuel system with vacuum assist
DE3613453A1 (en) * 1986-04-21 1987-10-22 Deutsche Geraetebau Gmbh Device for refuelling motor vehicles

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EP0480088A1 (en) 1992-04-15
DE59001573D1 (en) 1993-07-01
ES2041098T3 (en) 1993-11-01
ATE89810T1 (en) 1993-06-15

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