EP0298464B1 - Appareil pour alimentation en liquide - Google Patents

Appareil pour alimentation en liquide Download PDF

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Publication number
EP0298464B1
EP0298464B1 EP88110811A EP88110811A EP0298464B1 EP 0298464 B1 EP0298464 B1 EP 0298464B1 EP 88110811 A EP88110811 A EP 88110811A EP 88110811 A EP88110811 A EP 88110811A EP 0298464 B1 EP0298464 B1 EP 0298464B1
Authority
EP
European Patent Office
Prior art keywords
liquid
supply
liquid supply
detecting element
discriminator
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
EP88110811A
Other languages
German (de)
English (en)
Other versions
EP0298464A2 (fr
EP0298464A3 (en
Inventor
Jyuji Akiba
Hiroyuki Sugibuchi
Kazuyuki Kojima
Hiroshi Satoh
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.)
Tokico Ltd
Original Assignee
Junkosha Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Junkosha Co Ltd filed Critical Junkosha Co Ltd
Priority to AT88110811T priority Critical patent/ATE84766T1/de
Publication of EP0298464A2 publication Critical patent/EP0298464A2/fr
Publication of EP0298464A3 publication Critical patent/EP0298464A3/en
Application granted granted Critical
Publication of EP0298464B1 publication Critical patent/EP0298464B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • 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
    • B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
    • B67D7/34—Means for preventing unauthorised delivery of liquid
    • B67D7/342—Means for preventing unauthorised delivery of liquid by discriminating the kind of liquid by analysis or by physical properties, e.g. vapour-pressure

Definitions

  • the present invention relates to a vaporizable liquid supply apparatus. Petroleum or other vaporizable industrial liquid is always accompanied by danger because of its properties. Therefore, it is expected to confirm and discriminate a kind of liquid prior to transfer thereof.
  • EP-A-0 068 747 discloses a monitored liquid delivery system.
  • a liquid fuel pump nozzle carries an optical bar code reader.
  • a vehicle fuel reservoir has an entry port provided with an optical bae code strip. The reader thus reads the optical bar code during receiving movement of the nozzle into the entry port.
  • a comparator compares data read from the reader with data from a data source and optionally also with data from a credit card security system to determine whether the vehicle is authorized to receive fuel.
  • the invention as claimed is intended to remedy these drawbacks. It solves the problem of providing a liquid supply apparatus which excludes or minimizes the danger of erroneous liquid supply, i.e. supply of a certain kind of liquid to a reservoir for which it is not intended.
  • the present invention therefore provides a liquid supply apparatus which discriminates a kind of liquid to be supplied from a gas vaporized from the liquid remaining in the tank which requires additional supply and allows supply of liquid when the remaining liquid which requires addition supply matches the liquid to be supplied or stops supply of liquid when they do not match, in order to prevent accident and realize labor saving.
  • the detecting element when the detecting element is provided to the external circumference of the liquid supply end, for example, to the external circumference of the end part of a liquid supply gun, the liquid which requires additional supply can be detected accurately and it is not invaded by the liquid supplied. Accordingly, it is convenient that the detecting element can be used without waiting for drying condition. If the detecting element is provided within the liquid supply path, it is preferably provided through a film which allows transmission of gas but the liquid.
  • the locking means can effectively utilize a sequence circuit which stops operation of the liquid supply pump, a valve body and a mechanical locking element which stops operation of the liquid supply pump, a valve body and a mechanical locking element which stops ON condition of switch for motor to drive the liquid supply pump.
  • the discriminator In case the remaining liquid which requires additional supply matches the liquid to be supplied, liquid supply can be realized smoothly without effectuation of the locking operation. However, if the liquid to be supplied does not match the remaining liquid which requires additional supply, the discriminator generates the locking signal based on the information sent from the detecting element and thereby the locking means operates, suspending supply of liquid.
  • EP-A-0 246 684 which was filed prior to the present application and thus is considered to be comprised in the state of art according to articles 54 (3) and (4) EPC for the contracting states DE, FR, NL, IT, discloses a misfuelling prevention device.
  • a misfuelling prevention device In a system for preventing the accidentally adding of automotive diesel fuel to the fuel tank of a gasoline fuel vehicle at retail filling stations the vapour pressure in the tank to be filled is measured by means of a sensor and the difference in vapour pressure between petrol and diesel fuel is used to give a safety cut off system.
  • the misfuel prevention device according to EP-A-0 246 684 which uses a sensor to measure the vapour pressure of the vaporized gas of the remaining liquid in the reservoir has no differentiating means for determining the variation rate of the detected signal.
  • the detecting element can be protected from wetting by the liquid to be supplied and can be immediately used for the next detection by providing it at the external circumference of the liquid supply end, namely to the outside of the liquid passing route.
  • Fig. 1 which shows the concept of a gas service station for supplying the gasoline to an automobile
  • 1 is a class 2 oil supply post providing a light oil supply hose 2, a light oil supply gun 3 and light oil meter 4 on the left side and a gasoline supply hose 5, a gasoline supply gun 6 and a gasoline meter 7 on the right side.
  • a gas sensible type detecting element 8 is provided to the external circumference of the end part of a light oil supply gun 3 and the end part of a gasoline supply gun 6, respectively.
  • This detecting element 8 utilizes, for example, a conductive tetrafluoride ethylene resin film including a conductive member such as a carbon black of 50 wt% as the gas sensible part and has excellent weather resistance properties.
  • the detecting element 8 generates different information depending on the incoming gas.
  • the vaporizable liquid detection element has the structure that at least a pair of electrodes are bridged by a gas sensible member made of a resin material including a conductive substance. Therefore, for example, the molecules of oil element volatiled from oil penetrate into said gas sensible member and surround the particles of the conductive substance preventing electrical continuity of the vaporizable liquid detection element and thereby the resistance value or impedance value between the electrodes increases. An impedance detected by the measuring means or its function value is transmitted to the discriminating means.
  • the Increment of the impedance value has a positive correlation with the number of molecules of oil surrounding particles of said conductive substance and the increment of gasoline having high volatility rises sharply in comparison with that of light oil and kerosene.
  • a degree of volatility which is different depending on the kind of oil shows a particular impedance value under the constant condition. Therefore, a certain kind of oil can be discriminated by comparing the impedance value in case the vaporizable liquid detection element is placed in the volatile gas ambience with the precedingly measure sample value or by deciding whether such impedance value has exceeded the constant threshold value or not or in accordance with a value such as integral value or differential value (variation rate).
  • the detecting element 8 provides a different information or a signal, depending on an incoming gas, and when it detects the incoming vaporized gas from the remaining liquid which requires additional supply, the resistance value or the impedance value corresponding to this gas is generated in the detecting element 8 and the signal thereof is output.
  • the signal from the detecting element 8 is differentiated to obtain its rate of change or a differentiating value by a discriminator 9, and this discriminator 9 will discriminate a kind of oil to generate a locking signal. Namely, the discriminator 9 will generate the locking signal to actuate a locking means, when it determines that the differentiating value obtained by differentiating the signal from the detecting element 8 is different from the set differentiating value, which means a different oil.
  • the locking signal is generated on the basis of the differentiating value, it is possible to discriminate the kind of oil in a very short time.
  • the discriminator 9 decides that the supply of light oil is requested depending on the information sent from the detecting element 8. Since this information is different from the preset information of gasoline, a locking signal is generated. Thereby, the trigger 10 for supplying the liquid is locked and the fuel cannot be supplied, preventing erroneous supply of fuel. Accordingly, the gasoline supply gun 6 is accommodated to the oil supply post 1 and the light oil supply gun 3 is then taken out to supply the light oil. In this case, since the discriminator responding to the detecting element provided to the end part of the light oil supply gun 3 is preset to the light oil, the locking signal is no longer generated and the light oil is accurately supplied to the passenger car 11.
  • Fig. 2 is another embodiment of the present invention, namely an example of supplying oil to the underground tank of a gas service station from a tank rolly.
  • the other end of the supply hose 19 connected to the light oil tank release valve 18 of the tank rolly 17 is coupled with a oil supply valve 16 of the underground tank 19 for gasoline.
  • the detecting element 20 protected by the film which transmits a gas but a liquid and provided within the other end of oil supply hose 19 detects vaporized gas of gasoline within the underground tank 15.
  • the discriminator 22 receives information through a lead wire 21 connected to the detecting element 20 and the discriminator 22 which is preset to the light oil generates the locking signal to close the release valve 18.
  • the present invention is not limited to oil supply as explained in the above embodiments and can be applied to supply of vaporizable liquid for industrial use.
  • the vaporizable liquid to be supplied can be detected quickly and erroneous supply can also be prevented by forming a liquid supply apparatus being provided to the end part of a liquid supply system and comprising a detecting element for detecting the liquid to be supplied from the vaporized gas of the remaining liquid which requires additional supply, a discriminator for discriminating the information obtained from such detecting element and generating a lock signal and a locking means for suspending supply of liquid on the basis of the signal generated from the discriminator. Accordingly the present invention provides the effect of preventing danger and realizing labor saving.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Sampling And Sample Adjustment (AREA)

Claims (5)

  1. Appareil pour alimentation en liquide pour distribuer un liquide dans un réservoir qui nécessite une quantité supplémentaire de liquide, caractérisé par un élément détecteur (8, 20) pour détecter le gaz vaporisé du liquide restant dans le réservoir afin d'émettre un signal, un différentiateur pour déterminer une valeur différentielle correspondant au taux de variation dudit signal, un discriminateur (9, 22) produisant un signal de verrouillage en utilisant ladite valeur différentielle, dans le cas où ladite valeur différentielle indique que le liquide restant est différent du liquide étant distribué, et un moyen de verrouillage pour suspendre la distribution de liquide en fonction du signal de verrouillage provenant du discriminateur.
  2. Appareil pour alimentation en liquide selon la revendication 1, caractérisé en ce que l'élément détecteur est disposé à la circonférence externe de l'extrémité de distribution de liquide.
  3. Appareil pour alimentation en liquide selon la revendication 1, caractérisé en ce que l'élément détecteur (20) est disposé au sein du passage de liquide de l'extrémité de distribution de liquide, recouvert d'un film protecteur qui laisse passer le gaz mais pas le liquide.
  4. Appareil pour alimentation en liquide selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le moyen de verrouillage est un circuit séquentiel pour intervenir dans le fonctionnement d'une pompe d'alimentation en liquide.
  5. Appareil pour alimentation en liquide selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le moyen de verrouillage est un corps de clapet (18) qui opère en fonction du signal envoyé par le discriminateur (9, 22).
EP88110811A 1987-07-09 1988-07-06 Appareil pour alimentation en liquide Expired - Lifetime EP0298464B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88110811T ATE84766T1 (de) 1987-07-09 1988-07-06 Fluessigkeitsversorgungsapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP171808/87 1987-07-09
JP62171808A JPS6423994A (en) 1987-07-09 1987-07-09 Liquid feeder

Publications (3)

Publication Number Publication Date
EP0298464A2 EP0298464A2 (fr) 1989-01-11
EP0298464A3 EP0298464A3 (en) 1989-03-22
EP0298464B1 true EP0298464B1 (fr) 1993-01-20

Family

ID=15930107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110811A Expired - Lifetime EP0298464B1 (fr) 1987-07-09 1988-07-06 Appareil pour alimentation en liquide

Country Status (7)

Country Link
EP (1) EP0298464B1 (fr)
JP (1) JPS6423994A (fr)
KR (1) KR890001866A (fr)
AT (1) ATE84766T1 (fr)
CA (1) CA1298254C (fr)
DE (2) DE3877637T2 (fr)
GB (1) GB2206561B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355915A (en) * 1990-12-11 1994-10-18 Gilbarco Vapor recovery improvements
DE69301000T2 (de) * 1992-04-13 1996-08-14 Tatsuno Corp Kraftstoffabgabegerät mit Vorrichtung zum Erkennen der Kraftstoffsorte
JPH085518B2 (ja) * 1992-04-14 1996-01-24 株式会社富永製作所 貯留タンクの混油検出装置
FR2726910B1 (fr) * 1994-11-10 1996-12-27 Piemont Serge Dispositif d'identification de fluides hydrocarbures
WO1997034805A1 (fr) * 1996-03-20 1997-09-25 Healy Systems, Inc. Systeme de recuperation des vapeurs pouvant etre utilise avec des vehicules orvr
US5782275A (en) * 1996-05-17 1998-07-21 Gilbarco Inc. Onboard vapor recovery detection
US5868175A (en) 1996-06-28 1999-02-09 Franklin Electric Co., Inc. Apparatus for recovery of fuel vapor
US6571151B1 (en) 1998-03-06 2003-05-27 Russel Dean Leatherman Wireless nozzle interface for a fuel dispenser
US6102085A (en) * 1998-11-09 2000-08-15 Marconi Commerce Systems, Inc. Hydrocarbon vapor sensing
DE10037824B4 (de) 2000-08-03 2009-06-10 Daimler Ag Vorrichtung zum Verhindern des Einführens einer Zapfpistole
GB2401976A (en) * 2003-05-23 2004-11-24 John Peter Church Incorrect fuel filling warning device
GB2401975A (en) * 2003-05-23 2004-11-24 John Peter Church Incorrect fuel filling prevention device
US8167003B1 (en) 2008-08-19 2012-05-01 Delaware Capital Formation, Inc. ORVR compatible refueling system
DE112010004873T5 (de) * 2009-12-17 2012-10-31 Honda Motor Co., Ltd. Kraftstoff-Füllrohrvorrichtung für ein Fahrzeug
EP3887303A1 (fr) 2018-11-29 2021-10-06 Aryballe Technologies Dispositif de distribution pour empêcher un mélange de liquides, système d'approvisionnement, système de stockage et procédé d'approvisionnement mettant en oeuvre un tel dispositif de distribution

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE868415A (nl) * 1978-06-23 1978-10-16 Hoe Roger Ch Van Inrichting voor het beveiligen van bij een tankinstallatie te vullen reservoirs tegen het tanken van verkeerde vloeistof
GB2100705B (en) * 1981-06-23 1985-01-30 Monitronix Syst Monitored delivery systems
GB8612020D0 (en) * 1986-05-16 1986-06-25 Shell Int Research Misfuelling prevention device
JP2628859B2 (ja) * 1987-02-20 1997-07-09 トキコ 株式会社 給油装置

Also Published As

Publication number Publication date
CA1298254C (fr) 1992-03-31
EP0298464A2 (fr) 1989-01-11
DE3877637D1 (de) 1993-03-04
DE3877637T2 (de) 1993-05-13
EP0298464A3 (en) 1989-03-22
KR890001866A (ko) 1989-04-06
JPS6423994A (en) 1989-01-26
ATE84766T1 (de) 1993-02-15
GB8815998D0 (en) 1988-08-10
DE298464T1 (de) 1989-05-11
GB2206561B (en) 1991-07-03
GB2206561A (en) 1989-01-11

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