WO2022101876A1 - Unit for dispensing fuel - Google Patents
Unit for dispensing fuel Download PDFInfo
- Publication number
- WO2022101876A1 WO2022101876A1 PCT/IB2021/060562 IB2021060562W WO2022101876A1 WO 2022101876 A1 WO2022101876 A1 WO 2022101876A1 IB 2021060562 W IB2021060562 W IB 2021060562W WO 2022101876 A1 WO2022101876 A1 WO 2022101876A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- duct
- dispensing unit
- dispensing
- fuel
- head
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 82
- 239000003915 liquefied petroleum gas Substances 0.000 claims abstract description 26
- 239000004033 plastic Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 5
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 3
- 239000010951 brass Substances 0.000 claims abstract description 3
- 239000007769 metal material Substances 0.000 claims abstract description 3
- 239000010935 stainless steel Substances 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000009429 electrical wiring Methods 0.000 claims description 2
- 238000005058 metal casting Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000000840 anti-viral effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000007847 structural defect Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001775 anti-pathogenic effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000002816 fuel additive Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/002—Automated filling apparatus
- F17C5/007—Automated filling apparatus for individual gas tanks or containers, e.g. in vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0376—Dispensing pistols
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/036—Very high pressure (>80 bar)
Definitions
- the present invention relates to a unit for dispensing gaseous or liquid fuel, such as LPG (Liquefied Petroleum Gas), CNG (Methane Gas), petrol, diesel, or still other fuels.
- gaseous or liquid fuel such as LPG (Liquefied Petroleum Gas), CNG (Methane Gas), petrol, diesel, or still other fuels.
- the present invention can be used for dispensing gaseous fuels in vehicles provided with suitable pressurised tanks, or for dispensing liquid fuels, such as petrol or diesel, in vehicles provided with non-pressurised tanks.
- guns for dispensing gaseous or liquid fuel such as LPG, CNG, petrol, diesel, etc.
- gaseous or liquid fuel such as LPG, CNG, petrol, diesel, etc.
- the aforesaid components may have defects, for example blowholes which compromise the fuel seal and are difficult to detect, except through sophisticated and complex controls or through very scrupulous testing procedures of the finished product.
- the metal casting process must be completed with precision machining for the finishing and such machining significantly increases the final production cost of the dispenser.
- the present invention has the object of providing a unit for dispensing gaseous or liquid fuel, which is safer and at the same time more economical to produce, maintaining and improving the same functionality as the known type of fuel dispensing units.
- Another object of the present invention is to provide a fuel dispensing unit, which is lighter and more resistant (in particular to tears, breaks, pressures) with respect to the known type of dispensing units.
- a still further object of the present invention is to provide a highly customisable fuel dispensing unit, thereby enabling the purchaser to select for example the colour of the dispensing unit.
- a further object of the present invention is to provide a fuel dispensing unit which is more ergonomic and has a higher aesthetic value than the fuel dispensing guns made according to prior art.
- Yet another object of the present invention is to provide a fuel dispensing unit which allows the remote control of the fuel dispensing step and of the unit and/or to manage the state of use of the unit itself.
- figure 1 illustrates a perspective view of a fuel dispensing unit according to the present invention
- figure 2 illustrates a sectional side view of the fuel dispensing unit shown in the previous figure
- figure 3 illustrates a top perspective view of the fuel dispensing unit of the previous figures
- figure 4 illustrates another top perspective view of the fuel dispensing unit of the previous figures
- figure 5 illustrates a sectional side view of another embodiment of a fuel dispensing unit according to the present invention
- figure 6 illustrates a sectional side view of the fuel dispensing unit shown in figure 4.
- gaseous or liquid fuel such as LPG, CNG, petrol, diesel, etc.
- the fuel dispensing unit 1 essentially comprises a main structure 2 with a main body 3, a handle 3 a obtained on the main body 3 and a duct 4 for the passage of fuel, arranged inside the main structure 2.
- the main structure 2 has a substantially L-shape and comprises two ends 21, 22, however, other shapes can also be provided without departing from the scope of protection of the claims which follow.
- the main structure 2, at the first end 21, is connected with a flexible fuel supply pipe (not shown) coming from a fuel supply column, more specifically the fuel supply pipe is directly connected to the duct 4.
- the first end 21 further comprises a swivel joint 25 comprising a swivel bushing 26, for example provided with a ball bearing and a swivel seal 27 (figure 2).
- the main structure 2 is connected to a suitable fuel dispensing head 23 - figure 4 illustrates, by way of example, a head for gaseous fuels (LPG, CNG, natural gas, etc.) - but can be connected to a dispensing unit for liquid fuels (petrol, diesel, etc.), if it is envisaged for dispensing liquid fuel.
- a suitable fuel dispensing head 23 - figure 4 illustrates, by way of example, a head for gaseous fuels (LPG, CNG, natural gas, etc.) - but can be connected to a dispensing unit for liquid fuels (petrol, diesel, etc.), if it is envisaged for dispensing liquid fuel.
- the main structure 2, and consequently also the main body 3 and the handle 3a, are made directly in plastic, for example in polyamide reinforced with fibreglass, or still other plastics of a suitable type.
- the duct 4 is inside the main structure 2, the main structure 2 has an external surface 2a and an internal surface 2b in contact with the duct 4.
- the duct 4 is made of a single piece of metal material, suitable for contact with the fuel to be dispensed, for example stainless steel, aluminium, brass, etc.; the duct 4 also constitutes a metal core which reinforces the main plastic structure 2.
- the duct 4 has a tubular shape and, for example, can be made by drawing, rolling, extrusion, etc.
- the duct 4 is free from structural defects and allows a perfect seal to the fuel, thus solving the problems of fuel leaks which afflict the known type of dispensing units made in several parts obtained by casting.
- the duct 4 being made of a single metal piece, also allows a safe electrical continuity, ensuring an effective earthing of the dispensing head which comes into contact with the tank filler to be supplied, while the main plastic structure 2 is isolated from both the fuel and the passage of any electricity due to discharges of static electricity.
- the duct 4 may comprise other ducts of different shape and size in order to obtain different and accessory functions.
- the duct 4 may comprise another duct for the suction of fuel vapours, and/or ducts for the sensors for detecting fuel pressure and/or flow rate, and/or a duct for the electrical wiring of other accessories and/or a duct for dispensing a different fluid, for example a fuel additive, with respect to the fuel flowing in the duct 4.
- the duct 4 being in easily machinable and formable metal, allows to create, along the extension thereof, suitable housings for one or more components which may be removable or non-removable, for example filters, sensors, solenoid valves, etc.
- the main structure 2 may comprise an external covering 5 made of soft polymeric material, for example polyurethane, to make the parts in contact with the user's hand ergonomic and more comfortable.
- an external covering 5 made of soft polymeric material, for example polyurethane, to make the parts in contact with the user's hand ergonomic and more comfortable.
- the external covering 5 can cover part or all of the external surface 2a of the main structure 2, all the external parts of the dispensing unit 1 can be made of a polymeric material with antibacterial and antiviral properties or the external parts can be treated with antibacterial and antiviral coatings, for example with copper-based or copper alloy -based coverings, which exploit the anti -pathogenic properties of copper and the alloys thereof.
- the fuel dispensing unit 1 comprises a composite structure with a main structure 2 made of plastic, a metal duct 4 and a possible external covering 5 made of polymeric material suitable for contact with the user's hand; in one version of the present invention the external covering 5 may also be absent or integrated in the main structure 2.
- the plastic structure 2 also allows to easily make compartments or housings which are closed by respective lids and can be made watertight by means of suitable gaskets.
- compartments or containers can be used as housings for additional electrical components, such as solenoid valves, and/or for electronic boards coupled with communication displays, etc.
- Such components can also allow the remote control of the unit 1, for example, a solenoid valve coupled to a suitable electronic board could be used for a remote operator to manage the fuel dispensing step, or a communication display coupled to another suitable electronic board could be used to evaluate and manage the state of use of the dispensing unit 1 itself, or to send messages to the user.
- a solenoid valve coupled to a suitable electronic board could be used for a remote operator to manage the fuel dispensing step
- a communication display coupled to another suitable electronic board could be used to evaluate and manage the state of use of the dispensing unit 1 itself, or to send messages to the user.
- the plastic structure 2 allows a high level of customisation by the purchaser who can decide the colour of the plastic used and/or whether to add further inserts of different material without adding production costs, as the plastic can already be the chosen colour, without having to be painted.
- the plastic structure 2 allows the custom creation of brands or logos resistant to the degradation caused by use and/or by any solvents used in the field. Furthermore, the use of the plastic structure 2 allows to obtain a lower friction and therefore a lower wear of the parts of the dispensing unit 1 subjected to sliding.
- the dispensing unit 1 comprises operating means 6, for example a lever, which allow, through the movement of the lever itself, filling the tank of the vehicle to be supplied with fuel; the plastic structure 2 allows to reduce the friction and wear of the operating means 6 and the connected parts.
- the unit 1 further comprises covering means 7, for example a lid made of plastic material (figures 1-3), which protect the mechanism of the dispensing unit 1 and which in turn are kept in a closed position by closing means 8, for example a threaded ring nut, or a ring nut with bayonet connection, provided with anti-loosening devices.
- covering means 7 for example a lid made of plastic material (figures 1-3), which protect the mechanism of the dispensing unit 1 and which in turn are kept in a closed position by closing means 8, for example a threaded ring nut, or a ring nut with bayonet connection, provided with anti-loosening devices.
- the dispensing unit 1 is protected and kept closed without the use of external screws; this configuration also greatly helps the security of the unit 1, since it does not have external screws, the tampering thereof becomes much more complicated.
- Figure 4 shows the dispensing unit 1 without the covering means 7 and provided with a head 23 for attaching to a filler (not shown) of a fuel tank (not shown).
- a compartment 9 is obtained in which the aforementioned electronic board can be housed coupled to a communication display (not shown), the communication display thus serves as covering means 7.
- the covering means 7 may comprise an electronic board coupled to the communication display, the electronic board and the communication display allow an operator outside the service station to assist a user in the dispensing of fuel and/or manage the use of the dispensing unit 1 and/or the remote control of the dispensing unit 1.
- the head 23 can be of any type: for example and based on the type of tank filler to be supplied with fuel, in the case of LPG, the head 23 can be configured for the so-called Italian connection, or Eurol connection, or Acme connection, etc.
- the head 23 may comprise a liquid fuel dispensing assembly, see figure 5.
- the head 23 may be easily fixed to the structure 2 and to the duct 4 and locked by the aforementioned closing means 8; the head 23 is in fluid-tight connection with the duct 4 by means of the adapter means 24 (figure 2).
- figure 5 illustrates another possible embodiment of a dispensing unit 1, envisaged for dispensing liquid fuels, such as petrol, diesel, etc.
- the aforesaid dispensing unit 1 comprises a main structure 2, a main body 3 defining a handle 3a, a first end 21 connected with a flexible fuel supply pipe (not shown) to an internal duct 4, and a second end 22 connected to a liquid fuel dispensing head 23 by means of envisaged adapter means 24.
- the main structure 2 may comprise an external covering 5 made of soft polymeric material, for example polyurethane, and means for covering 7 the mechanisms and electronic parts of the dispensing unit 1 can be envisaged.
- Figure 6 shows a sectional side view, and in a further detail view, of the embodiment of a dispensing unit 1 illustrated in figure 4, envisaged for dispensing gaseous fuels, such as LPG and/or the like.
- the aforesaid dispensing unit 1 comprises a main structure 2, a main body 3 defining a handle 3a, a first end 21 connected with a flexible fuel supply pipe (not shown) to the internal duct 4, and a second end 22 connected to a fuel dispensing head 23 by means of envisaged adapter means 24.
- the dispensing head 23 which is designed to couple with a filler 108 for supplying LPG to a motor vehicle (not shown), has a connection assembly 109 essentially comprising a fixed sleeve 110, a movable sleeve 111 slidable on the external part of the fixed sleeve 110, coupling means 132 for the filler 108 inserted inside the movable sleeve 111, and shutter means 112 sliding inside the fixed sleeve 110 capable of selectively allowing the dispensing of the LPG.
- the movable sleeve 111 is operated by actuation means, i.e., an operation lever 6 rotatable about a hinge (figure 5) obtained in the body 2, the lever 6 is provided with a locking device 10 to keep the gun coupled to the filler 108.
- actuation means i.e., an operation lever 6 rotatable about a hinge (figure 5) obtained in the body 2, the lever 6 is provided with a locking device 10 to keep the gun coupled to the filler 108.
- the shutter means 112 which allow dispensing LPG only when the gun is completely coupled to the filler 108, comprise a plunger 113 formed by a stem 114 provided with two ends, at the first end of the stem 114 there is a first head 124, formed by a frustoconical portion 125 and by a cylindrical end 126 designed to be inserted in a corresponding hole provided in the filler 108, the cylindrical end 126 further comprises a non-stick bushing 127, for example made of fluorinated elastomer, to favour the flow and the seal inside the hole of the filler 108.
- a non-stick bushing 127 for example made of fluorinated elastomer
- a second cylindrical shaped head 116 In the second end of the stem 114 there is a second cylindrical shaped head 116 provided with a seat for a second gasket 123.
- the stem 114 has a hole 119 arranged substantially along the axis of the stem 14 and open towards the end where the first head 124 and radial holes 120 are located, such holes 119 and 120 determining a passage for the LPG under certain operating conditions of the dispensing unit 1.
- the shutter means 112 comprise a first spring 121, which acts between the adapter means 24 and the second head 16 and serves to keep the plunger 113 extracted in the first non-operating position.
- the holes 119, 120 are closed, not allowing the passage of LPG; the seal of the plunger 113 to the pressure of the LPG is further ensured by the second gasket 123 which is located in the second head 116.
- a return spring 151 is also provided, positioned inside the movable sleeve 111, which serves to return the sleeve 111 and the operating lever 6 is in a non-operating condition in which there is no dispensing of LPG.
- a dispensing unit 1 of gas or liquid fuel for example LPG, CNG, petrol, diesel, etc., with regard to the part related to the main structure 2 and the components connected thereto.
- the process for manufacturing the dispensing unit 1 envisages a first step of machining and forming the metal duct 4 which is suitably machined and formed to the types and dimensions of the dispensing unit 1.
- the metal duct 4 is placed in a first mould which matches the shape of the main structure 2, fixing the duct 4 in the mould in the position which it must have inside the structure 2 itself.
- a step is envisaged of over-moulding the duct 4, by means of an injection moulding operation, on the main plastic structure 2.
- the external covering 5 in polymeric material suitable for contact with the user's hand is provided in the dispensing unit 1, then another step may be taken to over-mould the polymeric material of the external covering 5 to the main structure 2.
- the main structure 2 with the duct 4 is loaded onto a second mould which provides the cavities for moulding the external covering 5.
- a single mould may comprise first cavities for manufacturing the main structure 2 and second cavities - of greater dimensions - for manufacturing the external covering 5.
- the second larger cavities may be obtained by eliminating or moving dowels at the cavities for manufacturing the external covering 5, or the portions forming the mould can be rotated or moved to a side which has the cavities for manufacturing the external covering 5.
- the main structure 2 with the duct 4, and any external covering 5, thus obtained continue the production cycle for obtaining the dispensing unit 1 with the assembly of the accessory components, for example filters, sensors, solenoid valves, etc., electronic boards coupled to communication displays, or covering means 7, as well as with the assembly of the adapter means 24 and the head 23 in fluid connection with the duct 4.
- the present invention allows to obtain a fuel dispensing unit with a lower weight with respect to the similar dispensing units of the prior art; having a lower weight, the transport costs also decrease.
- the duct 4 for the passage of fuel is made in a single piece and, for example, is made by drawing, rolling, extrusion, etc., thanks to such production processes, the duct 4 is also free from structural defects, allows a perfect seal to the fuel, thus solving the problems of fuel leaks which afflict the dispensing units of the known type which are generally made in several parts by casting. Moreover, by changing only the internal duct 4, it is possible to make units for the pressure dispensing for different use.
- the invention allows to reduce the number of production operations, with further economic advantages, in relation to the production times and costs themselves.
- the dispensing unit according to the present invention also shows a higher ergonomics and aesthetic value with respect to the dispensing units made through metal castings. Furthermore, the dispensing unit allows to modify its connection geometries to the vehicle, to adapt to the fillers and their arrangement on the vehicles, for example if the CNG/LPG fillers are located near the petrol/diesel filler, with reduced connection spaces.
- the present invention allows, in addition to better thermal insulation between the user's hand and the passage of fuel, also greater protection from impacts and dirt of the operating mechanisms of the unit 1, all thanks to the main plastic structure 2 and the covering means 7.
- the dispensing unit advantageously allows housing and integrating electronic parts, keeping them separate from the passage of fuel.
- the dispensing unit according to the present invention is therefore lighter, more resistant and more secure with respect to the known type of units.
- the present invention also allows another degree of customisation by the purchaser, who can choose according to needs the colour of the covering and/or the addition of inserts of different material, or of the logo, as well as the identification plates bearing the mandatory specifications, all without additional production costs. It has thus been seen how the invention achieves the intended purposes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
A unit for dispensing (1) gaseous or liquid fuel, such as LPG (Liquefied Petroleum Gas), CNG (Methane Gas), petrol, diesel, comprises a main structure (2), with a main body (3) and a handle (3a), a duct (4) for the passage of fuel, arranged inside the main structure (2), a head (23) for dispensing the gaseous or liquid fuel, said head (23) fixed to the main structure (2) and to the duct (4) in fluid-tight connection with the duct (4), the main structure (2) is made of plastic and the duct (4) is made of a single piece of metal material suitable for contact with the fuel to be dispensed, for example brass, stainless steel, the duct (4) further constituting a metal core which reinforces the main plastic structure (2).
Description
“UNIT FOR DISPENSING FUEL”
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a unit for dispensing gaseous or liquid fuel, such as LPG (Liquefied Petroleum Gas), CNG (Methane Gas), petrol, diesel, or still other fuels.
More specifically, the present invention can be used for dispensing gaseous fuels in vehicles provided with suitable pressurised tanks, or for dispensing liquid fuels, such as petrol or diesel, in vehicles provided with non-pressurised tanks.
DESCRIPTION OF THE PRIOR ART
Generally, guns for dispensing gaseous or liquid fuel, such as LPG, CNG, petrol, diesel, etc., comprise components made by metal casting. Due to this manufacturing technique, the aforesaid components may have defects, for example blowholes which compromise the fuel seal and are difficult to detect, except through sophisticated and complex controls or through very scrupulous testing procedures of the finished product.
In addition, the metal casting process must be completed with precision machining for the finishing and such machining significantly increases the final production cost of the dispenser.
Furthermore, in order to make the parts in contact with the hand, in particular the handle and the operating lever, ergonomic, it is necessary to apply plastic overstructures to the castings themselves, for example by means of gluing.
This contributes to the increase in production costs and the complexity of manufacturing the gun.
OBJECTS OF THE INVENTION
The present invention has the object of providing a unit for dispensing gaseous or liquid fuel, which is safer and at the same time more economical to produce, maintaining and improving the same functionality as the known type of fuel dispensing
units.
Another object of the present invention is to provide a fuel dispensing unit, which is lighter and more resistant (in particular to tears, breaks, pressures) with respect to the known type of dispensing units.
A still further object of the present invention is to provide a highly customisable fuel dispensing unit, thereby enabling the purchaser to select for example the colour of the dispensing unit.
A further object of the present invention is to provide a fuel dispensing unit which is more ergonomic and has a higher aesthetic value than the fuel dispensing guns made according to prior art.
Yet another object of the present invention is to provide a fuel dispensing unit which allows the remote control of the fuel dispensing step and of the unit and/or to manage the state of use of the unit itself.
Such objects are achieved by the fuel dispensing unit according to the attached claim 1.
Furthermore, such objects are achieved by the process for manufacturing a fuel dispensing unit according to the attached claim 17.
Dependent claims refer to preferred and advantageous example embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Other features and advantages of the invention will be more apparent from the description of example embodiments of a unit for dispensing fuel, illustrated for guidance only in the accompanying drawings in which: figure 1 illustrates a perspective view of a fuel dispensing unit according to the present invention; figure 2 illustrates a sectional side view of the fuel dispensing unit shown in the previous figure; figure 3 illustrates a top perspective view of the fuel dispensing unit of the previous figures; and figure 4 illustrates another top perspective view of the fuel dispensing unit of the
previous figures, figure 5 illustrates a sectional side view of another embodiment of a fuel dispensing unit according to the present invention; and figure 6 illustrates a sectional side view of the fuel dispensing unit shown in figure 4. EXAMPLE EMBODIMENTS OF THE INVENTION
With reference to figure 1, an example embodiment of the unit for dispensing 1 gaseous or liquid fuel, such as LPG, CNG, petrol, diesel, etc., is illustrated.
The fuel dispensing unit 1 essentially comprises a main structure 2 with a main body 3, a handle 3 a obtained on the main body 3 and a duct 4 for the passage of fuel, arranged inside the main structure 2.
By way of non-limiting example, the main structure 2 has a substantially L-shape and comprises two ends 21, 22, however, other shapes can also be provided without departing from the scope of protection of the claims which follow.
The main structure 2, at the first end 21, is connected with a flexible fuel supply pipe (not shown) coming from a fuel supply column, more specifically the fuel supply pipe is directly connected to the duct 4.
The first end 21 further comprises a swivel joint 25 comprising a swivel bushing 26, for example provided with a ball bearing and a swivel seal 27 (figure 2).
At the other end 22, the main structure 2 is connected to a suitable fuel dispensing head 23 - figure 4 illustrates, by way of example, a head for gaseous fuels (LPG, CNG, natural gas, etc.) - but can be connected to a dispensing unit for liquid fuels (petrol, diesel, etc.), if it is envisaged for dispensing liquid fuel.
The main structure 2, and consequently also the main body 3 and the handle 3a, are made directly in plastic, for example in polyamide reinforced with fibreglass, or still other plastics of a suitable type.
The duct 4 is inside the main structure 2, the main structure 2 has an external surface 2a and an internal surface 2b in contact with the duct 4.
The duct 4 is made of a single piece of metal material, suitable for contact with the fuel to be dispensed, for example stainless steel, aluminium, brass, etc.; the duct 4 also constitutes a metal core which reinforces the main plastic structure 2.
The duct 4 has a tubular shape and, for example, can be made by drawing, rolling, extrusion, etc.
Thanks to such production processes, the duct 4 is free from structural defects and allows a perfect seal to the fuel, thus solving the problems of fuel leaks which afflict the known type of dispensing units made in several parts obtained by casting.
Furthermore, the duct 4, being made of a single metal piece, also allows a safe electrical continuity, ensuring an effective earthing of the dispensing head which comes into contact with the tank filler to be supplied, while the main plastic structure 2 is isolated from both the fuel and the passage of any electricity due to discharges of static electricity.
According to the design needs of the dispensing unit 1, the duct 4 may comprise other ducts of different shape and size in order to obtain different and accessory functions. For example, the duct 4 may comprise another duct for the suction of fuel vapours, and/or ducts for the sensors for detecting fuel pressure and/or flow rate, and/or a duct for the electrical wiring of other accessories and/or a duct for dispensing a different fluid, for example a fuel additive, with respect to the fuel flowing in the duct 4.
Furthermore, the duct 4, being in easily machinable and formable metal, allows to create, along the extension thereof, suitable housings for one or more components which may be removable or non-removable, for example filters, sensors, solenoid valves, etc.
The main structure 2 may comprise an external covering 5 made of soft polymeric material, for example polyurethane, to make the parts in contact with the user's hand ergonomic and more comfortable.
The external covering 5 can cover part or all of the external surface 2a of the main structure 2, all the external parts of the dispensing unit 1 can be made of a polymeric material with antibacterial and antiviral properties or the external parts can be treated with antibacterial and antiviral coatings, for example with copper-based or copper alloy -based coverings, which exploit the anti -pathogenic properties of copper and the alloys thereof.
Therefore, the fuel dispensing unit 1 comprises a composite structure with a main
structure 2 made of plastic, a metal duct 4 and a possible external covering 5 made of polymeric material suitable for contact with the user's hand; in one version of the present invention the external covering 5 may also be absent or integrated in the main structure 2.
Unlike what occurs with the known fuel dispensing units, made by means of metal castings, the plastic structure 2 also allows to easily make compartments or housings which are closed by respective lids and can be made watertight by means of suitable gaskets.
Such compartments or containers can be used as housings for additional electrical components, such as solenoid valves, and/or for electronic boards coupled with communication displays, etc.
Such components can also allow the remote control of the unit 1, for example, a solenoid valve coupled to a suitable electronic board could be used for a remote operator to manage the fuel dispensing step, or a communication display coupled to another suitable electronic board could be used to evaluate and manage the state of use of the dispensing unit 1 itself, or to send messages to the user.
The plastic structure 2 allows a high level of customisation by the purchaser who can decide the colour of the plastic used and/or whether to add further inserts of different material without adding production costs, as the plastic can already be the chosen colour, without having to be painted.
Furthermore, the plastic structure 2 allows the custom creation of brands or logos resistant to the degradation caused by use and/or by any solvents used in the field. Furthermore, the use of the plastic structure 2 allows to obtain a lower friction and therefore a lower wear of the parts of the dispensing unit 1 subjected to sliding.
For example, in the embodiment shown in figures 1-4, the dispensing unit 1 comprises operating means 6, for example a lever, which allow, through the movement of the lever itself, filling the tank of the vehicle to be supplied with fuel; the plastic structure 2 allows to reduce the friction and wear of the operating means 6 and the connected parts.
The unit 1 further comprises covering means 7, for example a lid made of plastic
material (figures 1-3), which protect the mechanism of the dispensing unit 1 and which in turn are kept in a closed position by closing means 8, for example a threaded ring nut, or a ring nut with bayonet connection, provided with anti-loosening devices.
Thereby, the dispensing unit 1 is protected and kept closed without the use of external screws; this configuration also greatly helps the security of the unit 1, since it does not have external screws, the tampering thereof becomes much more complicated.
Figure 4 shows the dispensing unit 1 without the covering means 7 and provided with a head 23 for attaching to a filler (not shown) of a fuel tank (not shown).
In figure 4, in the area where the covering means 7 are missing, the functional mechanism of the operating means 6 is visible, disassembling the covering means 7 it is therefore possible to provide for the complete or partial maintenance or replacement of the same operating means 6.
Furthermore, in such an area a compartment 9 is obtained in which the aforementioned electronic board can be housed coupled to a communication display (not shown), the communication display thus serves as covering means 7.
Therefore, the covering means 7 may comprise an electronic board coupled to the communication display, the electronic board and the communication display allow an operator outside the service station to assist a user in the dispensing of fuel and/or manage the use of the dispensing unit 1 and/or the remote control of the dispensing unit 1.
The head 23 can be of any type: for example and based on the type of tank filler to be supplied with fuel, in the case of LPG, the head 23 can be configured for the so-called Italian connection, or Eurol connection, or Acme connection, etc.
Furthermore, in the case of liquid fuel dispensing, the head 23 may comprise a liquid fuel dispensing assembly, see figure 5.
For each type of connection and gaseous or liquid fuel, the head 23 may be easily fixed to the structure 2 and to the duct 4 and locked by the aforementioned closing means 8; the head 23 is in fluid-tight connection with the duct 4 by means of the adapter means 24 (figure 2).
As mentioned above, figure 5 illustrates another possible embodiment of a dispensing
unit 1, envisaged for dispensing liquid fuels, such as petrol, diesel, etc.
The aforesaid dispensing unit 1 comprises a main structure 2, a main body 3 defining a handle 3a, a first end 21 connected with a flexible fuel supply pipe (not shown) to an internal duct 4, and a second end 22 connected to a liquid fuel dispensing head 23 by means of envisaged adapter means 24. The main structure 2 may comprise an external covering 5 made of soft polymeric material, for example polyurethane, and means for covering 7 the mechanisms and electronic parts of the dispensing unit 1 can be envisaged.
Figure 6 shows a sectional side view, and in a further detail view, of the embodiment of a dispensing unit 1 illustrated in figure 4, envisaged for dispensing gaseous fuels, such as LPG and/or the like.
The aforesaid dispensing unit 1 comprises a main structure 2, a main body 3 defining a handle 3a, a first end 21 connected with a flexible fuel supply pipe (not shown) to the internal duct 4, and a second end 22 connected to a fuel dispensing head 23 by means of envisaged adapter means 24.
In figure 6 the head 23 is illustrated still detached during assembly on the adapter means 24 by means of screwing.
The dispensing head 23, which is designed to couple with a filler 108 for supplying LPG to a motor vehicle (not shown), has a connection assembly 109 essentially comprising a fixed sleeve 110, a movable sleeve 111 slidable on the external part of the fixed sleeve 110, coupling means 132 for the filler 108 inserted inside the movable sleeve 111, and shutter means 112 sliding inside the fixed sleeve 110 capable of selectively allowing the dispensing of the LPG.
The movable sleeve 111 is operated by actuation means, i.e., an operation lever 6 rotatable about a hinge (figure 5) obtained in the body 2, the lever 6 is provided with a locking device 10 to keep the gun coupled to the filler 108.
The shutter means 112, which allow dispensing LPG only when the gun is completely coupled to the filler 108, comprise a plunger 113 formed by a stem 114 provided with two ends, at the first end of the stem 114 there is a first head 124, formed by a frustoconical portion 125 and by a cylindrical end 126 designed to be inserted in a
corresponding hole provided in the filler 108, the cylindrical end 126 further comprises a non-stick bushing 127, for example made of fluorinated elastomer, to favour the flow and the seal inside the hole of the filler 108.
In the second end of the stem 114 there is a second cylindrical shaped head 116 provided with a seat for a second gasket 123.
The stem 114 has a hole 119 arranged substantially along the axis of the stem 14 and open towards the end where the first head 124 and radial holes 120 are located, such holes 119 and 120 determining a passage for the LPG under certain operating conditions of the dispensing unit 1.
The shutter means 112 comprise a first spring 121, which acts between the adapter means 24 and the second head 16 and serves to keep the plunger 113 extracted in the first non-operating position.
When the plunger 113 is extracted in the non-operating position, the holes 119, 120 are closed, not allowing the passage of LPG; the seal of the plunger 113 to the pressure of the LPG is further ensured by the second gasket 123 which is located in the second head 116.
A return spring 151 is also provided, positioned inside the movable sleeve 111, which serves to return the sleeve 111 and the operating lever 6 is in a non-operating condition in which there is no dispensing of LPG.
The process for manufacturing a dispensing unit 1 of gas or liquid fuel is now described, for example LPG, CNG, petrol, diesel, etc., with regard to the part related to the main structure 2 and the components connected thereto.
The process for manufacturing the dispensing unit 1 envisages a first step of machining and forming the metal duct 4 which is suitably machined and formed to the types and dimensions of the dispensing unit 1.
Subsequently, the metal duct 4 is placed in a first mould which matches the shape of the main structure 2, fixing the duct 4 in the mould in the position which it must have inside the structure 2 itself.
Next, a step is envisaged of over-moulding the duct 4, by means of an injection moulding operation, on the main plastic structure 2.
Furthermore, if the external covering 5 in polymeric material suitable for contact with the user's hand is provided in the dispensing unit 1, then another step may be taken to over-mould the polymeric material of the external covering 5 to the main structure 2. In order to over-mould the polymeric material of the external covering 5, the main structure 2 with the duct 4 is loaded onto a second mould which provides the cavities for moulding the external covering 5.
Alternatively, a single mould may comprise first cavities for manufacturing the main structure 2 and second cavities - of greater dimensions - for manufacturing the external covering 5.
The second larger cavities may be obtained by eliminating or moving dowels at the cavities for manufacturing the external covering 5, or the portions forming the mould can be rotated or moved to a side which has the cavities for manufacturing the external covering 5.
The main structure 2 with the duct 4, and any external covering 5, thus obtained continue the production cycle for obtaining the dispensing unit 1 with the assembly of the accessory components, for example filters, sensors, solenoid valves, etc., electronic boards coupled to communication displays, or covering means 7, as well as with the assembly of the adapter means 24 and the head 23 in fluid connection with the duct 4. The present invention allows to obtain a fuel dispensing unit with a lower weight with respect to the similar dispensing units of the prior art; having a lower weight, the transport costs also decrease.
Furthermore, since the duct 4 for the passage of fuel is made in a single piece and, for example, is made by drawing, rolling, extrusion, etc., thanks to such production processes, the duct 4 is also free from structural defects, allows a perfect seal to the fuel, thus solving the problems of fuel leaks which afflict the dispensing units of the known type which are generally made in several parts by casting. Moreover, by changing only the internal duct 4, it is possible to make units for the pressure dispensing for different use.
The invention allows to reduce the number of production operations, with further economic advantages, in relation to the production times and costs themselves.
The dispensing unit according to the present invention also shows a higher ergonomics and aesthetic value with respect to the dispensing units made through metal castings. Furthermore, the dispensing unit allows to modify its connection geometries to the vehicle, to adapt to the fillers and their arrangement on the vehicles, for example if the CNG/LPG fillers are located near the petrol/diesel filler, with reduced connection spaces.
Furthermore, the present invention allows, in addition to better thermal insulation between the user's hand and the passage of fuel, also greater protection from impacts and dirt of the operating mechanisms of the unit 1, all thanks to the main plastic structure 2 and the covering means 7.
Moreover, as described, the dispensing unit advantageously allows housing and integrating electronic parts, keeping them separate from the passage of fuel.
As has been seen, the dispensing unit according to the present invention is therefore lighter, more resistant and more secure with respect to the known type of units.
Finally, the present invention also allows another degree of customisation by the purchaser, who can choose according to needs the colour of the covering and/or the addition of inserts of different material, or of the logo, as well as the identification plates bearing the mandatory specifications, all without additional production costs. It has thus been seen how the invention achieves the intended purposes.
Changes to and variants of the invention are possible within the scope of protection defined by the following claims.
Claims
1. A unit for dispensing (1) gaseous or liquid fuel, such as LPG (Liquefied Petroleum Gas), CNG (Methane Gas), petrol, diesel, comprising a main structure (2), with a main body (3) and a handle (3a), a duct (4) for the passage of fuel, arranged inside said main structure (2), a first end (21) connected with a flexible supply pipe of the fuel to the inner duct (4), a head (23) for dispensing said gaseous or liquid fuel, said head (23) being fixed to said main structure (2) and to said duct (4) in fluid-tight connection with said duct (4), characterised in that said main structure (2) is made of plastic, and said duct (4) is made of a single piece of metal material suitable for contact with the fuel to be dispensed, for example brass, stainless steel, said duct (4) constituting a metal core which reinforces the main plastic structure (2).
2. A dispensing unit (1) according to claim 1, wherein said duct (4) is made by drawing, rolling, extrusion, or other similar processes.
3. A dispensing unit (1) according to claim 1 or 2, wherein said duct (4) internally comprises other ducts of different shapes and sizes in order to obtain different and accessory functions.
4. A dispensing unit (1) according to any one of the preceding claims, wherein said duct (4) comprises a duct for the suction of fuel vapours, and/or ducts for the sensors for detecting the fuel pressure and/or flow rate, and/or a duct for the electrical wiring of other accessories and/or a duct for dispensing a different fluid.
5. A dispensing unit (1) according to any one of the preceding claims, wherein said duct (4) comprises housings for one or more components which can be removable or non-removable: filters, sensors, solenoid valves.
6. A dispensing unit (1) according to any one of the preceding claims, wherein said main body (3) defines a handle (3a) with said first end (21) connected with a flexible fuel supply pipe to the inner duct (4), and a second end (22) connected to a fuel supply head (23) by means of provided adapter means (24).
7. A dispensing unit (1) according to any one of the preceding claims, wherein said first end (21) comprises a swivel joint (25) comprising a swivel bushing (26) and a swivel seal (27).
8. A dispensing unit (1) according to any one of the preceding claims, wherein said dispensing head (23) is provided for dispensing gaseous fuels, such as LPG and/or the like and is designed to be coupled with a filler (108) for refuelling LPG of a vehicle, has a connection assembly (109) which essentially includes a fixed sleeve (110) and a movable sleeve (111), slidable on the external part of said fixed sleeve (110), coupling means (132) for said filler (108) inserted inside said movable sleeve (111), and shutter means (112) sliding inside the fixed sleeve (110) capable of selectively allowing the dispensing of LPG.
9. A dispensing unit (1) according to the preceding claim, wherein said shutter means (112) allow dispensing LPG only when the gun is completely coupled to the filler (108).
10. A dispensing unit (1) according to any one of the preceding claims, wherein said main structure (2) comprises compartments or housings closed by respective lids made watertight by means of suitable gaskets, said compartments or housings being provided to contain additional electrical-type components.
11. A dispensing unit (1) according to the preceding claim, wherein said additional components of an electrical type comprise solenoid valves and/or communication displays and/or electronic boards coupled to communication displays.
12. A dispensing unit (1) according to any one of the preceding claims, wherein said main structure (2) comprises an external covering (5) made of soft polymeric material to make the parts in contact with the user's hand ergonomic and more comfortable.
13. A dispensing unit (1) according to any one of the preceding claims, comprising covering means (7), for example a lid, for protecting the operating mechanism (6) of said dispensing unit (1).
14. A dispensing unit (1) according to the preceding claim, wherein said covering means (7) comprise an electronic board coupled to a communication display.
15. A dispensing unit (1) according to any one of the preceding claims, wherein said head (23) is fixed to said structure (2) and to said duct (4) in fluid-tight connection with said duct (4) by means of adapter means (24).
16. A dispensing unit (1) according to any one of claims 13 to 15, comprising closing means (8), provided with anti-loosening devices to lock said head (23) to said structure (2) and to keep said covering means (7) in closed position.
17. Process for manufacturing a dispensing unit (1) of gaseous or liquid fuel, such as LPG (Liquefied Petroleum Gas), CNG (Methane Gas), petrol, diesel, according to any one of the preceding claims, comprising the steps of: making a main structure (2), with a main body (3) and a handle (3a), a duct (4) for the passage of fuel; installing a head (23) for dispensing the gaseous or liquid fuel in fluid connection with said duct (4); characterised in that said making step comprises: machining and forming said duct from a tubular metal duct (4) in one piece, said duct (4) being suitably machined and formed according to the types and dimensions of the dispensing unit (1); placing said duct (4) in a mould which matches the shape of the main structure (2) by fixing said duct (4) to said mould in the position which it will have to have inside the structure (2) itself; over-moulding said duct (4), by means of an injection moulding operation, on the main plastic structure (2).
18. A process for manufacturing a fuel dispensing unit (1) according to the preceding claim, comprising a step of over-moulding on said structure (2), by means of an injection moulding operation in a mould provided with cavities of larger dimensions with respect to the mould used to obtain the structure (2), an external covering (5) made of soft polymeric material to make the parts in contact with the user's hand ergonomic and more comfortable.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102020000027257A IT202000027257A1 (en) | 2020-11-13 | 2020-11-13 | FUEL DELIVERY UNIT |
IT102020000027257 | 2020-11-13 |
Publications (1)
Publication Number | Publication Date |
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WO2022101876A1 true WO2022101876A1 (en) | 2022-05-19 |
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ID=74858492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/IB2021/060562 WO2022101876A1 (en) | 2020-11-13 | 2021-11-15 | Unit for dispensing fuel |
Country Status (2)
Country | Link |
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IT (1) | IT202000027257A1 (en) |
WO (1) | WO2022101876A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3319281B2 (en) * | 1996-04-19 | 2002-08-26 | 株式会社タツノ・メカトロニクス | Refueling nozzle |
CA2448672A1 (en) * | 2001-05-30 | 2002-12-05 | L.R. Nelson Corporation | One touch actuated valve |
DE10259627A1 (en) * | 2002-12-18 | 2004-07-08 | Witt Gasetechnik Gmbh & Co.Kg | Quick release coupling for transfer of gaseous or liquid medium has inlet valve operated pneumatically by transferred medium, with external lever for pressurizing or ventilating of pneumatic cylinder operating inlet valve |
US20040221920A1 (en) * | 2001-05-01 | 2004-11-11 | Ferguson James D | Fuel dispensing nozzle construction |
EP3177857B1 (en) * | 2014-08-05 | 2018-08-29 | Linde Aktiengesellschaft | Lever actuated cylinder valve assembly |
US20200268219A1 (en) * | 2016-04-01 | 2020-08-27 | Oliver Yeo | Dispenser for providing hygienic protection of hands when using a fuel pump |
-
2020
- 2020-11-13 IT IT102020000027257A patent/IT202000027257A1/en unknown
-
2021
- 2021-11-15 WO PCT/IB2021/060562 patent/WO2022101876A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3319281B2 (en) * | 1996-04-19 | 2002-08-26 | 株式会社タツノ・メカトロニクス | Refueling nozzle |
US20040221920A1 (en) * | 2001-05-01 | 2004-11-11 | Ferguson James D | Fuel dispensing nozzle construction |
CA2448672A1 (en) * | 2001-05-30 | 2002-12-05 | L.R. Nelson Corporation | One touch actuated valve |
DE10259627A1 (en) * | 2002-12-18 | 2004-07-08 | Witt Gasetechnik Gmbh & Co.Kg | Quick release coupling for transfer of gaseous or liquid medium has inlet valve operated pneumatically by transferred medium, with external lever for pressurizing or ventilating of pneumatic cylinder operating inlet valve |
EP3177857B1 (en) * | 2014-08-05 | 2018-08-29 | Linde Aktiengesellschaft | Lever actuated cylinder valve assembly |
US20200268219A1 (en) * | 2016-04-01 | 2020-08-27 | Oliver Yeo | Dispenser for providing hygienic protection of hands when using a fuel pump |
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