ITTO20100342A1 - DISTRIBUTION DEVICE FOR A SUBSTANCE TO BE INJECTED IN A AIR CONDITIONING CIRCUIT FOR A VEHICLE - Google Patents
DISTRIBUTION DEVICE FOR A SUBSTANCE TO BE INJECTED IN A AIR CONDITIONING CIRCUIT FOR A VEHICLE Download PDFInfo
- Publication number
- ITTO20100342A1 ITTO20100342A1 IT000342A ITTO20100342A ITTO20100342A1 IT TO20100342 A1 ITTO20100342 A1 IT TO20100342A1 IT 000342 A IT000342 A IT 000342A IT TO20100342 A ITTO20100342 A IT TO20100342A IT TO20100342 A1 ITTO20100342 A1 IT TO20100342A1
- Authority
- IT
- Italy
- Prior art keywords
- valve
- bag
- leak
- air conditioning
- fluid
- Prior art date
Links
- 238000004378 air conditioning Methods 0.000 title claims description 19
- 239000000126 substance Substances 0.000 title claims description 6
- 239000012530 fluid Substances 0.000 claims description 22
- 230000004888 barrier function Effects 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000001143 conditioned effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000003380 propellant Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- -1 chloro-fluorine carbides Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
- B65D83/30—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods
- B65D83/303—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods using extension tubes located in or at the outlet duct of the nozzle assembly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00585—Means for monitoring, testing or servicing the air-conditioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/60—Contents and propellant separated
- B65D83/62—Contents and propellant separated by membrane, bag, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
- B65D83/756—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 comprising connectors, e.g. for tyre valves, or actuators connected to the aerosol container by a flexible tube
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/164—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing fluid being introduced in the pipe
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Duct Arrangements (AREA)
Description
DESCRIZIONE DESCRIPTION
del brevetto per invenzione industriale dal titolo: of the patent for industrial invention entitled:
"DISPOSITIVO DI EROGAZIONE PER UNA SOSTANZA DA INIETTARE IN UN CIRCUITO DI ARIA CONDIZIONATA DI UN VEICOLO" "DELIVERY DEVICE FOR A SUBSTANCE TO BE INJECTED INTO AN AIR CONDITIONING CIRCUIT OF A VEHICLE"
La presente invenzione è relativa ad un dispositivo di erogazione per un fluido da iniettare in un circuito di aria condizionata di un veicolo. The present invention relates to a dispensing device for a fluid to be injected into an air conditioning circuit of a vehicle.
Un circuito di aria condizionata comprende un circuito fluidico in cui fluisce un fluido refrigerante. Il fluido refrigerante cambia stato all'interno del circuito in condizioni di pressione che richiedono la presenza di tenute per evitare perdite verso l'ambiente esterno. All'interno del circuito fluidico, infatti, la pressione è localmente superiore alla pressione ambiente e il fluido refrigerante, che presenta inoltre una volatilità elevata, sfugge o per permeazione attraverso le tubature o tramite fughe localizzate nelle giunzioni. An air conditioning circuit comprises a fluid circuit in which a refrigerant fluid flows. The refrigerant fluid changes state inside the circuit under pressure conditions that require the presence of seals to avoid leaks to the external environment. In fact, inside the fluidic circuit, the pressure is locally higher than the ambient pressure and the refrigerant fluid, which also has a high volatility, escapes either by permeation through the pipes or through localized leaks in the joints.
Durante la vita utile del veicolo è necessario pertanto eseguire operazioni di manutenzione del circuito di aria condizionata. In particolare può essere necessario ricaricare il fluido refrigerante che permea dai tubi e sfugge alle tenute a fluido realizzate in corrispondenza delle giunzioni del circuito e/o inserire nel circuito stesso un fluido aggiuntivo avente una funzione turafalla o lubrificante per i dispositivi in movimento come un compressore. Un fluido turafalla viene iniettato all'interno del circuito di aria condizionata per poter chiudere piccole fughe e mantenere il più a lungo possibile il fluido refrigerante all'interno del circuito di aria condizionata senza intervenire con processi lunghi e costosi che richiedono di smontare il circuito almeno in parte. Inoltre, un fluido turafalla presenta un impatto termodinamico basso o nullo per non diminuire il rendimento e le prestazione dell'impianto di aria condizionata. During the useful life of the vehicle it is therefore necessary to carry out maintenance operations on the air conditioning circuit. In particular, it may be necessary to recharge the refrigerant fluid that permeates from the pipes and escapes the fluid seals made at the junctions of the circuit and / or to insert in the circuit itself an additional fluid having a leak-proofing function or lubricant for moving devices such as a compressor. . A leak-proof fluid is injected into the air conditioning circuit in order to close small leaks and keep the refrigerant fluid inside the air conditioning circuit for as long as possible without intervening with long and expensive processes that require the circuit to be disassembled at least partly. Furthermore, a leak-proof fluid has a low or zero thermodynamic impact in order not to decrease the efficiency and performance of the air conditioning system.
E' noto iniettare un fluido refrigerante e/o turafalla e/o lubrificante in un circuito di aria condizionata durante un'operazione di manutenzione. In particolare, sono noti fluidi refrigeranti appartenenti alla categoria dei cloro-fluoro carburi (CFC) che, tuttavia, sono stati banditi dalle recenti normative allo scopo di garantire una maggiore salvaguardia ambientale e in particolare per diminuire le immissioni di gas serra nell'atmosfera. It is known to inject a refrigerant and / or leak stop and / or lubricant fluid into an air conditioning circuit during a maintenance operation. In particular, refrigerant fluids belonging to the category of chloro-fluorine carbides (CFCs) are known which, however, have been banned by recent regulations in order to ensure greater environmental protection and in particular to reduce emissions of greenhouse gases into the atmosphere.
I CFC sono anche noti come propellenti per erogatori in pressione e, anche in questo caso, il loro impiego è stato proibito recentemente. CFCs are also known as propellants for pressure regulators and, again, their use has recently been banned.
Lo scopo della presente invenzione è di realizzare un dispositivo di erogazione per un fluido da iniettare in un circuito di aria condizionata di un veicolo in grado di soddisfare le recenti normative di salvaguardia ambientale ed essere semplice e sicuro da usare. The object of the present invention is to provide a dispensing device for a fluid to be injected into an air conditioning circuit of a vehicle capable of satisfying the recent environmental protection regulations and being simple and safe to use.
Lo scopo della presente invenzione viene realizzato tramite un dispositivo di erogazione secondo la rivendicazione 1. The object of the present invention is achieved by means of a dispensing device according to claim 1.
L'invenzione verrà ora descritta con riferimento al disegno annesso, che ne illustra un esempio di attuazione non limitativo ed è una sezione longitudinale parziale di un dispositivo di erogazione secondo la presente invenzione . The invention will now be described with reference to the attached drawing, which illustrates a non-limiting embodiment thereof and is a partial longitudinal section of a dispensing device according to the present invention.
In figura, con 1 è indicato nel suo insieme un dispositivo di erogazione per un fluido da iniettare in un circuito di aria condizionata di un veicolo, comprendente un involucro 2 conformato a bottiglia, una valvola 3 montata su un collo 4 dell'involucro 2 e un tubo 5 flessibile collegato alla valvola 3 e atto ad essere collegato a un impianto di aria condizionata di un veicolo. In the figure, 1 indicates as a whole a dispensing device for a fluid to be injected into an air conditioning circuit of a vehicle, comprising a bottle-shaped casing 2, a valve 3 mounted on a neck 4 of the casing 2 and a flexible pipe 5 connected to the valve 3 and adapted to be connected to an air conditioning system of a vehicle.
In particolare, l'involucro 2 è in pressione e alloggia una sacca 6 collegata ermeticamente alla valvola 3 in modo che solamente il contenuto della sacca stessa venga erogato tramite la valvola 3 e il tubo 5. In particular, the envelope 2 is under pressure and houses a bag 6 hermetically connected to the valve 3 so that only the content of the bag itself is dispensed through the valve 3 and the tube 5.
Preferibilmente, la sacca 6 è realizzata di un materiale flessibile, ad esempio un multistrato comprendente almeno uno strato barriera e uno o più strati di materiale polimerico. La sacca 6 presenta rispettivi bordi sigillati, ad esempio tramite termosaldatura, e viene collegata in modo sigillato a una protuberanza 7 della valvola 3. Vantaggiosamente lo strato barriera comprende uno strato di alluminio ed è ricoperto da uno o più strati di materiale polimerico. Preferably, the bag 6 is made of a flexible material, for example a multilayer comprising at least one barrier layer and one or more layers of polymeric material. The pocket 6 has respective edges sealed, for example by heat sealing, and is connected in a sealed manner to a protuberance 7 of the valve 3. Advantageously, the barrier layer comprises a layer of aluminum and is covered with one or more layers of polymeric material.
In particolare, la protuberanza 7 è definita da un corpo tubolare cavo definente una porta d'ingresso della valvola 3 e la sacca 6 è collegata alla valvola 3 in modo che la porta d'ingresso sia esclusivamente in comunicazione con l'interno della sacca stessa. In particular, the protuberance 7 is defined by a hollow tubular body defining an inlet port of the valve 3 and the pocket 6 is connected to the valve 3 so that the inlet port is exclusively in communication with the inside of the pocket itself. .
Preferibilmente, la protuberanza 7 viene collegata a un condotto 8 inserito all'interno della sacca 6 per consentire un migliore svuotamento di quest'ultima ed evitarne l'accartocciamento prima di essere riempita. Preferably, the protuberance 7 is connected to a duct 8 inserted inside the bag 6 to allow a better emptying of the latter and to prevent it from curling up before being filled.
Secondo la presente invenzione, la sacca 6 è inserita all'interno dell'involucro 2 in modo da essere compressa tramite un gas a una pressione maggiore rispetto a quella ambiente. Inoltre, lo strato barriera della sacca 6 è realizzato in modo tale da evitare uno scambio significativo fra il contenuto della sacca stessa e il gas di compressione. According to the present invention, the bag 6 is inserted inside the envelope 2 so as to be compressed by means of a gas at a pressure higher than the ambient pressure. Furthermore, the barrier layer of the bag 6 is made in such a way as to avoid a significant exchange between the contents of the bag itself and the compression gas.
Ad esempio, lo strato barriera comprende uno strato di alluminio e il gas di compressione è aria atmosferica. For example, the barrier layer comprises an aluminum layer and the compression gas is atmospheric air.
Un erogatore secondo la presente invenzione viene preferibilmente realizzato tramite una prima fase in cui la sacca 6 sostanzialmente vuota viene sigillata alla valvola 3 e una seconda fase in cui la valvola 3 viene collegata ad esempio per deformazione plastica del collo 4 all'involucro 2. A dispenser according to the present invention is preferably made by means of a first step in which the substantially empty bag 6 is sealed to the valve 3 and a second step in which the valve 3 is connected for example by plastic deformation of the neck 4 to the casing 2.
Successivamente, la sacca 6 viene riempita di un fluido refrigerante e/o turafalla attraverso la valvola 3. In questo modo, la sacca 6 si espande all'interno dell'involucro 2 in modo da comprimere l'aria. In particolare, valvola 3 comprende una valvola di non ritorno orientata per essere chiusa tramite la pressione interna dell'involucro 2 e azionabile a mano da un utente per essere aperta ed erogare il fluido turafalla. Per ottenere una pressione adatta ad alcune applicazioni, come ad esempio l'iniezione di un liquido turafalla in un circuito di aria condizionata, il rapporto fra il volume interno dell'involucro 2 e quello della sacca 6 dopo essere stata riempita è inferiore a 1,35. Ad esempio, se l'involucro 2 presenta un volume interno di 250 cm<A>3, la sacca 6 riempita del fluido da iniettare nel circuito di aria condizionata presenta un volume di 200 cm<A>2. Inoltre, la valvola 3 è collegata ermeticamente all'involucro 2 in modo da evitare la perdita di pressione in particolare nel vano fra l'involucro 2 e la sacca 6. Subsequently, the bag 6 is filled with a refrigerant and / or leak-stop fluid through the valve 3. In this way, the bag 6 expands inside the envelope 2 so as to compress the air. In particular, valve 3 comprises a non-return valve oriented to be closed by means of the internal pressure of the casing 2 and operable by hand by a user to be opened and deliver the leak-blocking fluid. In order to obtain a pressure suitable for some applications, such as for example the injection of a leak-proof liquid in an air conditioning circuit, the ratio between the internal volume of the casing 2 and that of the bag 6 after being filled is less than 1, 35. For example, if the envelope 2 has an internal volume of 250 cm <A> 3, the bag 6 filled with the fluid to be injected into the air conditioning circuit has a volume of 200 cm <A> 2. Furthermore, the valve 3 is hermetically connected to the casing 2 so as to avoid the loss of pressure in particular in the space between the casing 2 and the bag 6.
Allo scopo di consentire l'impiego per un circuito di aria condizionata di un veicolo, il tubo 5 presenta una connessione rapida 9 secondo la norma SAE J639, cioè presenta una connessione standard per le porte di accesso esterno dei circuiti di aria condizionata dei veicoli. In order to allow use for an air conditioning circuit of a vehicle, the hose 5 has a quick connection 9 according to SAE J639, that is, it has a standard connection for the external access doors of the air conditioning circuits of vehicles.
I vantaggi che il dispositivo di erogazione 1 secondo la presente invenzione consente di ottenere sono i seguenti. The advantages that the dispensing device 1 according to the present invention allows to obtain are the following.
Tramite la sacca 6, il gas propellente può essere un gas inerte che non presenta alcun tipo di pericolo nel trasporto e nello stoccaggio. Ad esempio, il dispositivo di erogazione può essere mantenuto all'interno del veicolo senza temere degradazioni eccessive anche in caso di temperature elevate ad esempio raggiunte quando il veicolo viene parcheggiato al sole per lunghi periodi di tempo. Through the bag 6, the propellant gas can be an inert gas which does not present any kind of danger in transport and storage. For example, the dispensing device can be kept inside the vehicle without fear of excessive degradation even in the case of high temperatures reached, for example, when the vehicle is parked in the sun for long periods of time.
Inoltre, nel settore della manutenzione degli impianti di aria condizionata, è soddisfatta l'esigenza di realizzare un dispositivo erogatore in cui il gas propellente non interagisca con il fluido iniettato. Infatti, il fluido da iniettare, i.e. un refrigerante, un lubrificante o un turafalle, tende a degradarsi con un propellente ed è vantaggioso per la qualità dell'operazione di manutenzione che il fluido da iniettare rimanga in un ambiente controllato all'interno della sacca 6. Furthermore, in the sector of maintenance of air conditioning systems, the need is satisfied to provide a dispensing device in which the propellant gas does not interact with the injected fluid. In fact, the fluid to be injected, i.e. a refrigerant, a lubricant or a leak stop, tends to degrade with a propellant and it is advantageous for the quality of the maintenance operation that the fluid to be injected remains in a controlled environment inside the bag 6.
Risulta infine chiaro che al dispositivo di erogazione 1 qui descritto e illustrato è possibile applicare modifiche o varianti senza per questo uscire dall'ambito di tutela come definito dalle rivendicazioni allegate. Finally, it is clear that modifications or variants can be applied to the dispensing device 1 described and illustrated here without thereby departing from the scope of protection as defined by the attached claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000342A ITTO20100342A1 (en) | 2010-04-22 | 2010-04-22 | DISTRIBUTION DEVICE FOR A SUBSTANCE TO BE INJECTED IN A AIR CONDITIONING CIRCUIT FOR A VEHICLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000342A ITTO20100342A1 (en) | 2010-04-22 | 2010-04-22 | DISTRIBUTION DEVICE FOR A SUBSTANCE TO BE INJECTED IN A AIR CONDITIONING CIRCUIT FOR A VEHICLE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITTO20100342A1 true ITTO20100342A1 (en) | 2011-10-23 |
Family
ID=43297056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000342A ITTO20100342A1 (en) | 2010-04-22 | 2010-04-22 | DISTRIBUTION DEVICE FOR A SUBSTANCE TO BE INJECTED IN A AIR CONDITIONING CIRCUIT FOR A VEHICLE |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | ITTO20100342A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895190A (en) * | 1987-03-09 | 1990-01-23 | Airosol Company, Inc. | Actuator and hose assembly for aerosol containers |
| WO2002044633A1 (en) * | 2000-11-28 | 2002-06-06 | Brasscorp Ltd. | Apparatus and method for urging fluid into a pressurized system |
| US20050061014A1 (en) * | 2003-09-22 | 2005-03-24 | George Cannan | Extension for top of refrigerant can for dispensing without a valve |
| US20050155980A1 (en) * | 2003-01-21 | 2005-07-21 | Seaquist Perfect Dispensing Foreign, Inc. | Aerosol mounting cup for connection to a collapsible container |
-
2010
- 2010-04-22 IT IT000342A patent/ITTO20100342A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895190A (en) * | 1987-03-09 | 1990-01-23 | Airosol Company, Inc. | Actuator and hose assembly for aerosol containers |
| WO2002044633A1 (en) * | 2000-11-28 | 2002-06-06 | Brasscorp Ltd. | Apparatus and method for urging fluid into a pressurized system |
| US20050155980A1 (en) * | 2003-01-21 | 2005-07-21 | Seaquist Perfect Dispensing Foreign, Inc. | Aerosol mounting cup for connection to a collapsible container |
| US20050061014A1 (en) * | 2003-09-22 | 2005-03-24 | George Cannan | Extension for top of refrigerant can for dispensing without a valve |
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