ITFI20070170A1 - "A MULTIVALVE GAS SUPPLY FOR A LIQUID GAS TANK" - Google Patents

"A MULTIVALVE GAS SUPPLY FOR A LIQUID GAS TANK" Download PDF

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Publication number
ITFI20070170A1
ITFI20070170A1 ITFI20070170A ITFI20070170A1 IT FI20070170 A1 ITFI20070170 A1 IT FI20070170A1 IT FI20070170 A ITFI20070170 A IT FI20070170A IT FI20070170 A1 ITFI20070170 A1 IT FI20070170A1
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IT
Italy
Prior art keywords
tank
gas
roller
rod
valve
Prior art date
Application number
Other languages
Italian (it)
Inventor
Biagiotti Alfredo
Original Assignee
Bigas Internat Autogas Systems
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 Bigas Internat Autogas Systems filed Critical Bigas Internat Autogas Systems
Priority to ITFI20070170 priority Critical patent/ITFI20070170A1/en
Priority to PCT/IT2008/000486 priority patent/WO2009013776A1/en
Publication of ITFI20070170A1 publication Critical patent/ITFI20070170A1/en

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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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/021—Special adaptations of indicating, measuring, or monitoring equipment having the height as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K21/00—Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04—Self-closing valves, i.e. closing automatically after operation
    • F16K21/18—Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
    • F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
    • F16K31/24—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with a transmission with parts linked together from a single float to a single valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
    • F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
    • F16K31/24—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with a transmission with parts linked together from a single float to a single valve
    • F16K31/26—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with a transmission with parts linked together from a single float to a single valve with the valve guided for rectilinear movement and the float attached to a pivoted arm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F16K37/0016—Mechanical means having a graduated scale
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters
    • 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
    • F17C13/04—Arrangement or mounting of valves
    • 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
    • F17C2205/0323—Valves
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • 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
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • 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
    • F17C2223/0146—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
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0408—Level of content in the vessel
    • F17C2250/0413—Level of content in the vessel with floats
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Float Valves (AREA)

Abstract

The device comprises a discoidal body (1) with a flat circular face for sealed coupling with an opening of the tank, there being produced in the discoidal body: a gas inlet nozzle equipped with a non-return valve and with a limit valve controlled by a float (18) to limit filling of the tank; a level indicator (25) of the liquid contained in the tank; and an outlet nozzle provided with shut-off members for a pipe for use. The float (18) of said limit valve is hinged to the body (1) of the device by means of a rod (15) pivoted in the body (1) according to an axis (X-X) parallel to said flat face (IB) of the body (1) of the device and approximately coplanar therewith.

Description

"UN DISPOSITIVO MULTIVALVOLA DI ALIMENTAZIONE DI GAS PER UN SERBATOIO DI GAS LIQUIDO" "A MULTIVALVE GAS SUPPLY DEVICE FOR A LIQUID GAS TANK"

DESCRIZIONE DESCRIPTION

La presente invenzione si riferisce ad un disposi-tivo multivalvola di alimentazione di gas per un serba-toio di gas liquido (GPL). Tali dispositivi, che equi-paggiano le bombole di gas liquido per autotrazione e per altri impieghi, sono prodotti in grandi serie e de-vono rispondere a rigide normative di sicurezza. E' fondamentale per il successo di un tale dispositivo che questo sia compatto, con ridotto costo di fabbricazione e di applicazione semplice e quanto più universale possibile. In particolare esso deve essere atto ad essere montato sul serbatoio del gas in qualsiasi posizione si trovi l'apertura destinata a riceverlo, ad esempio sul-la parete cilindrica del serbatoio o su uno dei fondel-li di questo, ed in qualsiasi orientamento tale apertura si trovi nell'impiego rispetto alla verticale. The present invention relates to a multivalve gas supply device for a liquid gas (LPG) tank. These devices, which equip cylinders of liquid gas for automotive and other uses, are produced in large series and must comply with strict safety regulations. It is essential for the success of such a device that it is compact, with low manufacturing cost and simple application and as universal as possible. In particular, it must be able to be mounted on the gas tank in any position the opening intended to receive it is found, for example on the cylindrical wall of the tank or on one of its bottoms, and in any orientation such opening is in use with respect to the vertical.

In generale tali dispositivi multivalvola compren-dono un corpo principale presentante sulla propria pe-riferia una superficie di accoppiamento a tenuta con un'apertura del serbatoio, nel corpo principale essendo ricavati: una valvola di sicurezza contro le sovrapressioni; un boccaglio di ingresso di gas alimentato da una fonte esterna per riempire il serbatoio, il bocca-glio essendo munito di una valvola di non ritorno e di una valvola limitatrice munita di galleggiante per limitare il riempimento del serbatoio, ad esempio all'80% della sua capacità massima con un indicatore di livello del liquido contenuto nel serbatoio; ed un boccaglio di uscita per alimentare gas ad una conduttura di utilizzo munita di organi di intercettazione quali una elettrovalvola ed un rubinetto azionabile manualmente od even-tualmente mediante una chiave. In general, such multivalve devices comprise a main body having on its periphery a surface for sealing coupling with an opening of the tank, the main body being provided: a safety valve against overpressures; a gas inlet mouthpiece fed from an external source to fill the tank, the mouth being equipped with a non-return valve and a relief valve equipped with a float to limit the filling of the tank, for example to 80% of the its maximum capacity with a level indicator of the liquid contained in the tank; and an outlet mouthpiece for supplying gas to a pipeline equipped with interception members such as a solenoid valve and a cock which can be operated manually or possibly by means of a key.

Per ottenere in massimo grado gli scopi sopra in-dicati, ossia compattezza, versatilità di applicazione e di impiego, ed un costo di fabbricazione ridotto, un dispositivo multivalvola secondo il presente trovato è formato da un corpo principale presentante una faccia piana circolare di accoppiamento a tenuta con un'aper-tura del serbatoio. Tale corpo principale è a forma di disco compatto ed il galleggiante di detta valvola limitatrice di riempimento è incernierato direttamente nel corpo del dispositivo mediante un'asta imperniata nel corpo stesso secondo un asse parallelo ed accostato alla detta faccia piana di accoppiamento del corpo. I-noltre detta asta è facilmente incurvabile durante il montaggio per adattarla alla posizione del corpo multivalvola e, nell'intorno del proprio asse di rotazione, l'asta del galleggiante è atta a cooperare direttamente con il detto equipaggio della valvola limitatrice di riempimento . In order to achieve the aforementioned purposes to the maximum degree, i.e. compactness, versatility of application and use, and a reduced manufacturing cost, a multivalve device according to the present invention is formed by a main body having a circular flat face for coupling to sealed with a tank opening. This main body is in the shape of a compact disk and the float of said filling limiting valve is hinged directly into the body of the device by means of a rod pivoted in the body itself along a parallel axis and approached to said flat coupling face of the body. Furthermore, said rod is easily bent during assembly to adapt it to the position of the multivalve body and, around its axis of rotation, the float rod is adapted to cooperate directly with said assembly of the filling limiting valve.

In tal modo il dispositivo presenta una elevata compattezza in quanto tutti gli organi che lo costitui-scono si trovano direttamente applicati a detto corpo principale. Poiché l'asta è manualmente deformabile, è possibile adattarne la forma per un corretto funziona-mento della valvola limitatrice e del segnalatore di livello in qualsiasi posizione rispetto alla verticale si trovi l'apertura del serbatoio alla quale il dispo-sitivo deve essere applicato. In this way the device has a high compactness since all the members that make it up are directly applied to said main body. Since the rod is manually deformable, it is possible to adapt its shape for correct operation of the relief valve and of the level indicator in any position with respect to the vertical the opening of the tank to which the device is to be applied is located.

Altri aspetti originali del trovato sono esposti nelle rivendicazioni dipendenti. Other original aspects of the invention are set forth in the dependent claims.

Il trovato sarà meglio compreso seguendo la de-scrizione e l'unito disegno, il quale mostra una esem-plificazione non limitativa del trovato stesso. Nel di-segno: la The invention will be better understood by following the description and the attached drawing, which shows a non-limiting example of the same invention. In the design: the

Fig.l è una vista laterale di un dispositivo multivalvola secondo il trovato; le Fig. 1 is a side view of a multivalve device according to the invention; the

Figg.2 e 3 sono viste in pianta e dal basso secon-do II-II e III-III, rispettivamente, del dispositivo di Fig.l; la Figs.2 and 3 are plan and bottom views according to II-II and III-III, respectively, of the device of Fig.1; there

Fig.4 è una vista ingrandita in sezione secondo IV-IV di Fig.2; la Fig.4 is an enlarged sectional view according to IV-IV of Fig.2; there

Fig.5 è una vista in sezione secondo V-V di Fig.4; e la Fig.5 is a sectional view according to V-V of Fig.4; and the

Fig.6 è una vista in sezione parziale secondo VI-VI di Fig.2. Fig.6 is a partial section view according to VI-VI of Fig.2.

Con riferimento alle Figg.l e 2, il dispositivo multivalvola secondo il trovato comprende un corpo di-scoidale 1 munito di una flangia periferica 1A con fori per bulloni di fissaggio al serbatoio. Il corpo 1 pre-senta una faccia piana inferiore 1B atta ad appoggiarsi a tenuta, mediante una guarnizione inserita in una gola 1BB, su una superficie piana circolare di un'apertura di un serbatoio di gas liquido. Al corpo 1 è applicato un boccaglio di ingresso 3 in corrispondenza di un bre-ve condotto radiale 1C (Fig.4) il quale sfocia in un foro 1D di alimentazione del gas al serbatoio. Infe-riormente, il corpo 1 presenta una sporgenza cilindrica tubolare 1E all'estremità della quale è applicato un tubo di pescaggio 5 esteso fino in prossimità del fondo del serbatoio. Per alimentare gas dal serbatoio ad una utenza esterna, detta sporgenza tubolare 1E è in comu-nicazione di fluido con un boccaglio di uscita 7 (Fig.2) attraverso un condotto interno (non mostrato nel disegno) che può essere chiuso mediante un rubinet-to 9 - serrabile manualmente o mediante una chiave - ed una elettrovalvola di alimentazione 11. Al corpo 1 è anche applicata una valvola di sicurezza 13 (Fig.6) co-stituita da un piattello 13A (Fig.6) solidale con uno stelo 13B, in cui una molla 13C spinge con una forza prefissata il piattello 13A contro una sede di valvola 13D ricavata nel corpo 1 con interposizione di una guarnizione 13F. With reference to Figures 1 and 2, the multivalve device according to the invention comprises a disk body 1 provided with a peripheral flange 1A with holes for bolts for fixing to the tank. The body 1 has a lower flat face 1B adapted to rest hermetically, by means of a gasket inserted in a groove 1BB, on a flat circular surface of an opening of a liquid gas tank. An inlet nozzle 3 is applied to the body 1 in correspondence with a short radial duct 1C (Fig.4) which flows into a hole 1D for supplying the gas to the tank. At the bottom, the body 1 has a tubular cylindrical protrusion 1E at the end of which a suction tube 5 is applied extending up to the bottom of the tank. To supply gas from the tank to an external user, said tubular projection 1E is in fluid communication with an outlet nozzle 7 (Fig. 2) through an internal duct (not shown in the drawing) which can be closed by means of a tap. to 9 - which can be locked manually or by means of a key - and a supply solenoid valve 11. The body 1 is also fitted with a safety valve 13 (Fig.6) consisting of a plate 13A (Fig.6) integral with a stem 13B , in which a spring 13C pushes the plate 13A with a predetermined force against a valve seat 13D formed in the body 1 with the interposition of a gasket 13F.

Secondo il trovato, al corpo 1 è incernierata una estremità di un'asta 15 che, all'altra estremità, porta un galleggiante 18. L'asta 15 è di filo metallico di una sezione tale da presentare una sufficiente resi-stenza per seguire il moto del galleggiante 18, ma an-che tale da potersi facilmente deformare manualmente al momento del montaggio per adattarla alla posizione di montaggio del dispositivo multivalvola sul serbatoio, come precisato nella premessa. All'estremità di cernie-ra, l'asta 15 è solidale ad una rotella 15A (vedere an-che le Figg.4 e 5) imperniata su di un pernio 15B fis-sato al corpo 1 mediante due grani 15C, l'asse X-X del pernio - e quindi anche di rotazione dell'asta 15 - es-sendo parallelo e circa complanare con la faccia 1B di appoggio del corpo 1 sul serbatoio del gas. Inoltre l'asse X-X è parallelo ed in prossimità dell'asse Y-Y del condotto di ingresso 1C del gas nel serbatoio e di un equipaggio 17 mobile assialmente di una valvola limitatrice di riempimento, il quale è appoggiato late-ralmente su una faccia della rotella 15A sotto la spin-ta del flusso di gas quando si riempie il serbatoio. L'equipaggio mobile 17 presenta un piattello 17A atto a chiudere contro una parete piana 1Z del corpo 1 il flusso del gas entrante quando, con l'aumentare del li-vello del gas nel serbatoio ad un valore prestabilito (ad esempio corrispondente all'80% della capacità mas-sima del serbatoio), la rotella 15A presenta all'estremità del l'equipaggio 17 un vano 15AA che consente al-l'equipaggio 17 uno spostamento verso destra (guardando la Fig.4) sufficiente alla chiusura del detto condotto 1C. L'equipaggio 17 è anche sollecitato assialmente da una molla 19 che si oppone parzialmente alla forza del flusso di gas entrante, per ridurre la forza esercitata dall'equipaggio 17 sulla rotella 15A in modo da ridurre l'attrito per la rotazione dell'asta del galleggiante. All'estremità sinistra dell'equipaggio 17 (sempre con riferimento alla Fig.4) è inserito un otturatore 21 con interposizione di una molla tarata assiale 23 per for-mare, contro una sede interna 3A del boccaglio di in-gresso 3, una valvola di non ritorno atta a chiudere il condotto d'ingresso 1C quando non è alimentato gas al serbatoio . According to the invention, one end of a rod 15 is hinged to the body 1 which, at the other end, carries a float 18. The rod 15 is made of metal wire of such a section as to have sufficient resistance to follow the motion of the float 18, but also such that it can be easily deformed manually at the time of assembly to adapt it to the assembly position of the multivalve device on the tank, as specified in the introduction. At the hinge end, the rod 15 is integral with a wheel 15A (see also Figs. 4 and 5) pivoted on a pin 15B fixed to the body 1 by means of two dowels 15C, the axis X-X of the pin - and therefore also of rotation of the rod 15 - being parallel and approximately coplanar with the face 1B supporting the body 1 on the gas tank. Furthermore, the X-X axis is parallel to and in proximity to the Y-Y axis of the gas inlet duct 1C in the tank and of an axially movable assembly 17 of a filling limiting valve, which rests laterally on one face of the roller 15A under the pressure of the gas flow when filling the tank. The mobile unit 17 has a plate 17A adapted to close the incoming gas flow against a flat wall 1Z of the body 1 when, as the level of the gas in the tank increases to a predetermined value (for example corresponding to 80 % of the maximum capacity of the tank), the wheel 15A has at the end of the crew 17 a compartment 15AA which allows the crew 17 to move to the right (looking at Fig. 4) sufficient to close said duct 1C. The member 17 is also axially stressed by a spring 19 which partially opposes the force of the incoming gas flow, to reduce the force exerted by the member 17 on the roller 15A so as to reduce the friction due to the rotation of the rod of the floating. At the left end of the assembly 17 (again with reference to Fig. 4) a shutter 21 is inserted with the interposition of an axial calibrated spring 23 to form, against an internal seat 3A of the inlet nozzle 3, a valve non-return valve designed to close the inlet duct 1C when gas is not supplied to the tank.

In una incassatura superiore 1W (Fig.4) del corpo 1, direttamente sovrastante la rotella 15A ma separata da questa da una sottile parete IP del corpo 1, è mon-tato un dispositivo di segnalazione 25 con lancetta azionabile magneticamente e relativo quadrante di lettura. Il corpo 1 del dispositivo multivalvola e detta ro-tella 15A sono in un materiale non ferromagnetico, ad esempio ottone, e in un foro radiale ricavato sulla pe-riferia della rotella 15A è inserito a forza un rullino 15D di magnete permanente sporgente dalla rotella stessa con l'estremità libera che sfiora la faccia inferio-re (guardando la Fig.4) di detta parete IP. A sua volta il dispositivo segnalatore 25 presenta, in prossimità dalla faccia superiore della parete 1^, una coppia di espansioni polari 25A di un magnete permanente il cui campo viene variato dagli spostamenti del rullino 15D con la rotazione della rotella 15A, con ciò realizzan-dosi un segnalatore di livello. In an upper recess 1W (Fig. 4) of the body 1, directly above the wheel 15A but separated from it by a thin IP wall of the body 1, there is mounted a signaling device 25 with a magnetically actuated hand and relative reading dial. . The body 1 of the multivalve device and said roller 15A are made of a non-ferromagnetic material, for example brass, and a permanent magnet roller 15D protruding from the roller itself is forcibly inserted in a radial hole made on the perimeter of the roller 15A. with the free end touching the lower face (looking at Fig. 4) of said IP wall. In turn, the signaling device 25 has, near the upper face of the wall 1, a pair of pole pieces 25A of a permanent magnet whose field is varied by the movements of the roller 15D with the rotation of the wheel 15A, thereby realizing doses a level indicator.

E' inteso che il disegno non mostra che una esem-plificazione data solo quale dimostrazione pratica del trovato, potendo esso trovato variare nelle forme e di-sposizioni senza peraltro uscire dall'ambito del con-cetto che informa il trovato stesso. L'eventuale pre-senza di numeri di riferimento nelle rivendicazioni ac-cluse ha lo scopo di facilitare la lettura delle rivendicazioni con riferimento alla descrizione, e non limita l'ambito della protezione rappresentata dalle riven-dicazioni. It is understood that the drawing shows only an example given only as a practical demonstration of the invention, since it can be found to vary in the forms and arrangements without however departing from the scope of the concept that informs the invention itself. The possible presence of reference numbers in the attached claims has the purpose of facilitating the reading of the claims with reference to the description, and does not limit the scope of protection represented by the claims.

Claims (1)

RIVENDICAZIONI 1. Un dispositivo multivalvola di alimentazione di gas per un serbatoio di gas liquido (GPL) comprendente un corpo principale presentante una faccia piana circolare di accoppiamento a tenuta con un'apertura del ser-batoio, nel corpo principale essendo ricavati: un boc-caglio di ingresso di gas alimentato da una fonte esterna per riempire il serbatoio, il boccaglio essendo munito di una valvola di non ritorno e di una valvola limitatrice munita di galleggiante per limitare il riempimento del serbatoio, ad esempio all'80% della sua capacità massima; un indicatore di livello del liquido contenuto nel serbatoio; ed un boccaglio di uscita per alimentare gas ad una conduttura di utilizzo, munito di organi di intercettazione quali una elettrovalvola ed un rubinetto, caratterizzato dal fatto che il corpo principale (1) è a forma di disco compatto e che il galleggiante (18) di detta valvola limitatrice è incer-nierato direttamente nel corpo (1) del dispositivo mediante un'asta (15) imperniata nel corpo (1) stesso se-condo un asse (X-X) parallelo ed accostato alla detta faccia piana (1B) di accoppiamento del corpo (1), che detta asta (15) è facilmente incurvabile durante il montaggio per adattarla alla posizione del corpo multivalvola, e che nell'intorno di detto asse (X-X) la det ta asta (15) è atta a cooperare direttamente con il detto equipaggio della valvola limitatrice di riempi-mento. 2.Dispositivo come da rivendicazione 1, caratterizzato dal fatto che, in prossimità dell'asse di rota-zione (X-X), detta asta (15) è fissata ad una rotella (15A) girevole su di un perno (15B) attorno a detto as-se (X-X), e che detto asse di rotazione (X-X) è paral-lelo all'asse (Y-Y) di scorrimento dell'equipaggio mo-bile (IV) di detta valvola limitatrice di riempimento che si appoggia con una estremità, sotto la spinta del flusso di gas mentre viene immesso nel serbatoio, ad una faccia laterale di detta rotella (15A) nella quale è ricavata una incassatura (1AA) atta a consentire una corsa di chiusura a detto equipaggio (17) per intercet-tare - con un proprio piattello (17A) contro una sede (1Z) - l'immissione di gas nel serbatoio quando il li-quido ha raggiunto il livello massimo prefissato, su detto equipaggio (17) essendo prevista una molla (19) che lo sollecita per distaccarlo da detta rotella (15A) compensando almeno parzialmente la forza di trascina-mento esercitata dal detto flusso di gas sull'equipag-gio stesso. 3.Dispositivo come da rivendicazione 1 o 2, caratterizzato dal fatto che, sul condotto d'ingresso (1C), detto dispositivo presenta una valvola di non ri-torno (21, 3A) coassiale con detto equipaggio mobile (17), una molla (23) essendo prevista fra l'equipaggio (17) e l'otturatore (21) di detta valvola di non ritor-no per distanziarli e favorire così la chiusura di tale valvola quando l'immissione di gas nel serbatoio viene cessata. 4.Dispositivo come da rivendicazione 1, 2 o 3, caratterizzato dal fatto che il corpo (1) del disposi-tivo e detta rotella (15A) sono in un materiale non ferromagnetico, ad esempio ottone, e che in un foro ra-diale ricavato sulla periferia della rotella (15A) è inserito a forza un rullino (15D) di magnete permanente sporgente dalla rotella stessa, l'estremità libera del rullino (15D) sfiorando una parete (IP) relativamente sottile dall'altra parte della quale è applicato un in-dicatore di livello (25) ad azionamento magnetico sen-sibile agli spostamenti del rullino (15D) con la rota-zione dell'asta (15) del galleggiante (18). 5.Un dispositivo multivalvola di alimentazione di gas per un serbatoio di gas liquido; il tutto come so-pra descritto e rappresentato per esemplificazione nell'annesso disegno.CLAIMS 1. A multivalve gas supply device for a liquid gas (LPG) tank comprising a main body having a flat circular face for sealing coupling with an opening of the tank, the main body being made up of: a nozzle gas inlet fed from an external source to fill the tank, the mouthpiece being equipped with a non-return valve and a limiting valve equipped with a float to limit the filling of the tank, for example to 80% of its maximum capacity; a level indicator of the liquid contained in the tank; and an outlet mouthpiece for supplying gas to a pipeline, equipped with interception devices such as a solenoid valve and a tap, characterized in that the main body (1) is in the shape of a compact disk and that the float (18) of said limiting valve is hinged directly into the body (1) of the device by means of a rod (15) pivoted in the body (1) itself according to an axis (X-X) parallel and approached to the said flat face (1B) for coupling the body (1), that said rod (15) is easily bent during assembly to adapt it to the position of the multivalve body, and that in the vicinity of said axis (X-X) said rod (15) is able to cooperate directly with the said assembly of the filling limiting valve. 2.Device as per claim 1, characterized in that, near the rotation axis (X-X), said rod (15) is fixed to a wheel (15A) which rotates on a pin (15B) around said axis (X-X), and that said rotation axis (X-X) is parallel to the sliding axis (Y-Y) of the movable assembly (IV) of said filling limiting valve which rests with one end, under the thrust of the gas flow while it is being introduced into the tank, to a lateral face of said wheel (15A) in which a recess (1AA) is obtained which is suitable to allow a closing stroke to said unit (17) to intercept - with its own plate (17A) against a seat (1Z) - the introduction of gas into the tank when the liquid has reached the predetermined maximum level, a spring (19) being provided on said unit (17) which urges it to detach it from said roller (15A) by at least partially compensating for the dragging force exerted by said flu gas on the equipment itself. 3.Device as per claim 1 or 2, characterized in that, on the inlet duct (1C), said device has a non-return valve (21, 3A) coaxial with said movable element (17), a spring (23) being provided between the assembly (17) and the obturator (21) of said non-return valve to distance them and thus facilitate the closure of said valve when the introduction of gas into the tank is stopped. 4. Device as per claim 1, 2 or 3, characterized in that the body (1) of the device and said roller (15A) are made of a non-ferromagnetic material, for example brass, and that in a radial hole obtained on the periphery of the roller (15A) a roller (15D) of permanent magnet protruding from the roller itself is inserted by force, the free end of the roller (15D) touching a relatively thin wall (IP) on the other side of which it is applied a level indicator (25) with magnetic drive sensitive to the movements of the roller (15D) with the rotation of the rod (15) of the float (18). 5.A multivalve gas supply device for a liquid gas tank; all as described above and shown by way of example in the attached drawing.
ITFI20070170 2007-07-24 2007-07-24 "A MULTIVALVE GAS SUPPLY FOR A LIQUID GAS TANK" ITFI20070170A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITFI20070170 ITFI20070170A1 (en) 2007-07-24 2007-07-24 "A MULTIVALVE GAS SUPPLY FOR A LIQUID GAS TANK"
PCT/IT2008/000486 WO2009013776A1 (en) 2007-07-24 2008-07-18 A multi-valve device to supply gas for a liquid gas tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI20070170 ITFI20070170A1 (en) 2007-07-24 2007-07-24 "A MULTIVALVE GAS SUPPLY FOR A LIQUID GAS TANK"

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ITVI20090073A1 (en) * 2009-03-31 2010-10-01 T A Fin S R L PERFECT MULTIVALVE GROUP, IN PARTICULAR FOR LPG SYSTEMS.
KR101662509B1 (en) * 2010-07-20 2016-10-17 현대자동차주식회사 Structure of return-valve for automobile using liquefied-petroleum-gas
LU92405B1 (en) * 2014-03-19 2015-09-21 Luxembourg Patent Co Sa Valve for gas tank with overfill protection deviceand level gauge

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Publication number Priority date Publication date Assignee Title
AU605918B2 (en) * 1987-10-16 1991-01-24 Syntom Limited Improved liquid petroleum multi-valve assembly
FR2685428B1 (en) * 1991-12-23 1995-06-09 Ceodeux Sa TAP FOR COMPRESSED OR LIQUEFIED GASES.
FR2778397B1 (en) * 1998-05-07 2000-06-09 Clesse Ind FILLING DEVICE FOR LIQUEFIED PETROLEUM GAS TANK
US7293578B2 (en) * 2004-01-22 2007-11-13 Rochester Gauges, Inc. Gauge assembly having a stop fill device
US7748402B2 (en) * 2004-10-28 2010-07-06 Fester Assets Corporation Valve assembly
US7219686B2 (en) * 2005-02-02 2007-05-22 Torrent Trading Ltd. Tap assembly for a liquid vessel having an overfill protection device and a float controlled magnetic level gauge

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