Apparatus and methods for placing an additive fluid into a...

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F - Mech Eng,Light,Heat,Weapons

25

B

F25B 45/00 (2006.01) C09K 3/12 (2006.01) F25B 43/00 (2006.01)

Patent

CA 2401864

A supply canister (28) is partially filled with a refrigerant circuit additive liquid (10) and is partially evacuated. Additive liquid from the canister (28) may be placed into the refrigerant circuit (23) of an air conditioning system by (1) connecting the canister (28) to the circuit after it has been emptied and a vacuum pressure created therein, (2) connecting the canister (28) to the refrigerant circuit suction line (12a) during system operation, or (3) connecting the canister (28) to the suction line (12a) with the system off, to thereby force refrigerant from the circuit (12) into the canister (28), and then starting the system to cause the vacuum pressure in the suction line (12a) to draw the contents of the canister into the refrigerant circuit.

La présente invention concerne un bidon d'alimentation (28) partiellement rempli d'un additif liquide (10) pour circuit frigorigène et partiellement vidé. De l'additif liquide contenu dans le bidon (28) peut être placé dans le circuit frigorigène (23) d'un système de climatisation par (1) connexion du bidon (28) au circuit après l'avoir vidé et avoir créé une dépression, (2) par connexion du bidon (28) à la conduite d'aspiration (12a) du circuit frigorigène au cours du fonctionnement du système, ou (3) par connexion du bidon (28) à la conduite d'aspiration (12a) lorsque le système est à l'arrêt, de manière à faire passer le fluide frigorigène du circuit (12) vers le bidon (28), et par démarrage ensuite du système pour faire en sorte que la dépression au niveau de la conduite d'aspiration (12a) aspire les contenus du bidon dans le circuit frigorigène.

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