EP3395753A1 - Unité de pompe à carburant pour une unité de distribution de carburant, unité de distribution de carburant pour ravitailler un véhicule et procédé de gestion d'une unité de pompe à carburant pour une unité de distribution de carburant - Google Patents

Unité de pompe à carburant pour une unité de distribution de carburant, unité de distribution de carburant pour ravitailler un véhicule et procédé de gestion d'une unité de pompe à carburant pour une unité de distribution de carburant Download PDF

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Publication number
EP3395753A1
EP3395753A1 EP17168774.2A EP17168774A EP3395753A1 EP 3395753 A1 EP3395753 A1 EP 3395753A1 EP 17168774 A EP17168774 A EP 17168774A EP 3395753 A1 EP3395753 A1 EP 3395753A1
Authority
EP
European Patent Office
Prior art keywords
fuel
pump
speed
unit
variable
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.)
Withdrawn
Application number
EP17168774.2A
Other languages
German (de)
English (en)
Inventor
Bengt I. Larsson
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.)
Wayne Fueling Systems Sweden AB
Original Assignee
Wayne Fueling Systems Sweden AB
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 Wayne Fueling Systems Sweden AB filed Critical Wayne Fueling Systems Sweden AB
Priority to EP17168774.2A priority Critical patent/EP3395753A1/fr
Publication of EP3395753A1 publication Critical patent/EP3395753A1/fr
Withdrawn legal-status Critical Current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
    • B67D7/06—Details or accessories
    • B67D7/36—Arrangements of flow- or pressure-control valves
    • 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
    • B67D7/76—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators
    • B67D7/763—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators of air separators

Definitions

  • the invention relates to a fuel pump unit for a fuel dispensing unit, a fuel dispensing unit for refuelling a vehicle and a method for handling a fuel pump unit for a fuel dispensing unit.
  • a submersible turbine pump associated with an underground storage tank is often used to pump fuel to one or more fuel dispensers.
  • some fuel dispensers comprise a self-contained pumping unit, meaning fuel is drawn to the fuel dispenser by a motor-driven pump positioned within the fuel dispenser housing.
  • these fuel dispensers typically comprise a self-contained pump for each grade of fuel.
  • these pumps are sliding vane pumps or gear pumps and are driven by a motor which operates at a fixed speed.
  • a fuel dispenser having an integrated pump normally comprises a bypass spring valve arranged between the suction side and the pressure side of the pump.
  • the pump is driven by a motor which operates at a fixed speed.
  • the pump is used in a fuel dispenser to supply fuel to two or more nozzles for delivering the same grade of fuel.
  • the pump is designed to produce a fuel stream having a sufficient pressure to allow simultaneous fuelling from the two or more nozzles at a desirable flow rate.
  • the bypass valve is closed or open at a small opening degree.
  • a backpressure develops and causes the bypass valve to open. Thereby, a portion of the pumped fuel is recirculated to the inlet of the pump.
  • a fuel pump unit for a fuel dispensing unit.
  • the fuel pump unit comprises a pump with a suction side S and a pressure side P, a variable-speed pump motor adapted to drive the pump, a bypass channel arranged between the pressure side P and the suction side S of the pump, a flow meter arranged at the pressure side P of the pump downstream of the bypass channel, and a control unit connected to the variable-speed pump motor and the flow meter.
  • the pump unit is characterised in that the control unit is adapted to control the speed of the variable-speed pump motor based on a fuel flow rate detected by the flow meter.
  • variable-speed pump motor will be continuously adjusted in relation to the application level of the fuel dispensing unit.
  • fuel that will be forced to circulate through the bypass channel of the fuel pump unit during refuelling will be kept to a minimum.
  • the control unit may be adapted to increase the speed of the variable-speed pump motor upon an increase of the fuel flow rate detected by the flow meter.
  • the control unit may be adapted to set the variable-speed pump motor at a speed such that an overcapacity at the pressure side (P) of the pump is established.
  • the control unit may be in electronic communication with the variable-speed pump motor and the flow meter.
  • the bypass channel may comprise a bypass control valve, which control valve may comprise a spring valve.
  • the pump may be a suction pump.
  • variable-speed pump motor may be a step motor or a brushless DC motor.
  • the fuel pump unit may further comprise an air separating device adapted to remove air present in the fuel flowing through the fuel pump unit.
  • a fuel dispensing unit for refuelling a vehicle which comprises a fuel pump unit according to the features described above.
  • the fuel pump unit comprises a pump with a suction side S and a pressure side P, a variable-speed pump motor adapted to drive the pump, a bypass channel arranged between the pressure side P and the suction side S of the pump, a flow meter arranged at the pressure side P of the pump downstream of the bypass channel, and a control unit connected to the variable-speed pump motor and the flow meter.
  • the method is characterised by the step of controlling the speed of the variable-speed pump motor based on a fuel flow rate detected by the flow meter.
  • the step of controlling the speed of the variable-speed pump motor may comprise increasing the speed of the variable-speed pump motor upon an increase of the fuel flow rate detected by the flow meter.
  • the step of controlling the speed of the variable-speed pump motor may comprise setting the variable-speed pump motor at a speed such that an overcapacity at the pressure side P of the pump is established
  • Fig. 1 illustrates an exemplary fuel dispensing unit 1, having hose storage spaces 2 on each opposing side of the fuel dispensing unit 1, an electrical cabinet 3 containing all the electronics for the fuel dispensing unit 1, a hydraulic cabinet 4 containing fuel dispensing means (not shown), e.g. fuel metering means, valves, vapour recovery system etc., and a column 5 extending vertically between and separating the electrical cabinet 3 and the hydraulic cabinet 4 from the hose storage spaces 2.
  • fuel dispensing means e.g. fuel metering means, valves, vapour recovery system etc.
  • the fuel dispensing unit 1 is connected to an underground reservoir (not shown) containing fuel.
  • an underground reservoir (not shown) containing fuel.
  • the fuel is pumped from the underground reservoir by means of a pump 6 which is located in the hydraulic cabinet 4, and from there to the column 5 and out to a nozzle 7 via a hose 8.
  • the fuel dispensing unit has a nozzle boot 9 in which the nozzle 7 is arranged when not in use.
  • the nozzle boot 9 preferably comprises a sensor (not shown) for detecting if the nozzle 7 is present in the nozzle boot 9. Further, the nozzle 7 is normally equipped with a flow meter (not shown) for measuring the fuel flow rate from the nozzle 7 upon refuelling.
  • a fuel pump unit 10 for the fuel dispensing unit 1 comprises the pump 6 with the suction side S and the pressure side P, a variable-speed pump motor 11 adapted to drive the pump 6, a bypass channel 12 arranged between the pressure side P and the suction side S of the pump 6, a flow meter 13 arranged at the pressure side P of the pump downstream of the bypass channel 12, and a control unit 14 connected to the variable-speed pump motor 11 and the flow meter 13.
  • the bypass channel 12 has a control valve 15 comprising a spring valve.
  • the fuel pump unit 10 further comprises an air separating device (not shown) adapted to remove air present in the fuel flowing through the fuel pump unit 10.
  • a main fuel supply pipe 15 extends between the underground reservoir and the suction side S of the pump 6, while the hose 8 extends between the pressure side P of the pump 6 and the nozzle 7.
  • the suction side S provides an underpressure to the main fuel supply pipe 15 and the pressure side S provides an overpressure to the hose 8.
  • the control unit 14 is adapted to control the speed of the variable-speed pump motor 11 based on a fuel flow rate detected by the flow meter 13. This is conducted by increasing the speed of the variable-speed pump motor 11 upon an increase of the fuel flow rate detected by the flow meter 13.
  • the variable-speed pump motor 11 is set at a speed such that an overcapacity at the pressure side P of the pump 6 is established. Due to the fact that the speed of the variable-speed pump motor 11 is variated instead of continuously operating at a fixed speed, the overall energy consumption of the fuel pump unit 10 will be even further decreased.
  • the control unit 14 is alerted and a variable-speed pump motor 11 driving the pump 6 is started at a low speed. Since the actual refuelling has not been started at this stage, the fuel is now circulated from the pressure side P to back to the suction side S via the bypass channel 12.
  • the control unit 14 When the nozzle 7 is opened and the fuel starts flowing therefrom, a pressure drop will occur and the pressure from the fuel applied on the spring valve 15 in the bypass channel 12 will decrease. Now, the fuel will instead flow through the hose 8 and out of the nozzle 7 for delivery to a vehicle.
  • the control unit 14 When the fuel flow rate through the flow meter 13 is at the maximum fuel flow rate that can be delivered at the current speed of the variable-speed pump motor 11, the control unit 14 will increase the speed of the variable-speed pump motor 11.
  • the control unit 14 will constantly monitor the refuelling process and adjust the speed of the variable-speed pump motor 11 based on the fuel flow rate detected by the flow meter 13 to create a constant overcapacity in the pump pressure. This way, there will also be a small but constant circulation of fuel through the bypass channel 12.
  • variable speed pump motor 11 can for example be a two-step motor which operates at a speed of 500 rpm/1000 rpm.
  • More steps equal a higher degree of fine tuning of the variable speed pump motor 11 in relation to the fuel flow rate detected by the flow meter 13.
  • the control unit 14 can be arranged to gather user information and over time create a table based on experience which in turn can be used to fine adjust the appropriate initial fuel flow rate during refuelling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP17168774.2A 2017-04-28 2017-04-28 Unité de pompe à carburant pour une unité de distribution de carburant, unité de distribution de carburant pour ravitailler un véhicule et procédé de gestion d'une unité de pompe à carburant pour une unité de distribution de carburant Withdrawn EP3395753A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17168774.2A EP3395753A1 (fr) 2017-04-28 2017-04-28 Unité de pompe à carburant pour une unité de distribution de carburant, unité de distribution de carburant pour ravitailler un véhicule et procédé de gestion d'une unité de pompe à carburant pour une unité de distribution de carburant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17168774.2A EP3395753A1 (fr) 2017-04-28 2017-04-28 Unité de pompe à carburant pour une unité de distribution de carburant, unité de distribution de carburant pour ravitailler un véhicule et procédé de gestion d'une unité de pompe à carburant pour une unité de distribution de carburant

Publications (1)

Publication Number Publication Date
EP3395753A1 true EP3395753A1 (fr) 2018-10-31

Family

ID=58640771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17168774.2A Withdrawn EP3395753A1 (fr) 2017-04-28 2017-04-28 Unité de pompe à carburant pour une unité de distribution de carburant, unité de distribution de carburant pour ravitailler un véhicule et procédé de gestion d'une unité de pompe à carburant pour une unité de distribution de carburant

Country Status (1)

Country Link
EP (1) EP3395753A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112947204A (zh) * 2021-02-25 2021-06-11 郑州地铁集团有限公司运营分公司 电客车齿轮箱加油机控制系统
SE1951525A1 (en) * 2019-12-20 2021-06-21 Wayne Fueling Systems Sweden Ab Strategic intelligence of fuel dispenser

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440845A1 (fr) * 1990-02-07 1991-08-14 Scheidt & Bachmann Gmbh Système de distribution pour carburants liquides
WO2015187976A2 (fr) * 2014-06-04 2015-12-10 Gilbarco Inc. Ensemble pompe de distribution de carburant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440845A1 (fr) * 1990-02-07 1991-08-14 Scheidt & Bachmann Gmbh Système de distribution pour carburants liquides
WO2015187976A2 (fr) * 2014-06-04 2015-12-10 Gilbarco Inc. Ensemble pompe de distribution de carburant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE1951525A1 (en) * 2019-12-20 2021-06-21 Wayne Fueling Systems Sweden Ab Strategic intelligence of fuel dispenser
SE544909C2 (en) * 2019-12-20 2022-12-27 Dover Fueling Solutions Uk Ltd A fuel dispenser for refueling vehicles comprising a reduced number of electric cables
US20230014660A1 (en) * 2019-12-20 2023-01-19 Wayne Fueling Systems Sweden Ab Fuel Dispenser with Control System Inside the Hydraulic Compartment
US11820645B2 (en) * 2019-12-20 2023-11-21 Wayne Fueling Systems Sweden Ab Fuel dispenser with control system inside the hydraulic compartment
CN112947204A (zh) * 2021-02-25 2021-06-11 郑州地铁集团有限公司运营分公司 电客车齿轮箱加油机控制系统

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