Rapid connection coupling

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 37/42 (2006.01) F16L 37/084 (2006.01) F16L 37/12 (2006.01)

Patent

CA 2442806

The invention concerns a rapid connection coupling (10) for transferring high- pressure gases ad/or liquid, in particular for refilling a high-pressure, mobile container such as a gas cylinder with oxygen in a home environment or at a transfill station with a transfill device. The coupling in question comprises the following elements: a tubular housing (11), an outer sliding sleeve (18) which can slide relative to the housing (11); a number of radially expanding collet chuck elements (15) mounted on the housing (11) and provided with an engaging contour (17) which facilitates connection to a matching connection fitting (30); and a sealing piston (22) capable of sliding centrally inside the housing (11), the said sealing piston being brought into contact with the connecting fitting (30). Internal parts (e.g., pin 25b and pin 25c) of the coupling are characterized by having a reduced or minimized volume, thereby reducing the volume of fluid expelled when removing the fitting (30) from the coupling (10), thereby reducing the intensity of sound created by disconnecting the fitting (30) from the coupling (10). Additionally, the coupling (10) is characterized by being easy to use and by having a relatively low parts count.

L'invention concerne un système de raccordement rapide (10) permettant de transférer des gaz et/ou des liquides haute pression, et plus particulièrement de recharger un container mobile haute pression, tel qu'une bouteille à gaz, dans un environnement domestique ou dans une station de transvidage, à l'aide d'un dispositif de transvidage. Ce système de raccordement en question comprend les éléments suivants: un logement tubulaire (11), un manchon coulissant extérieur (18) qui peut glisser par rapport au logement (11); un certain nombre de mandrins à bague (15) montés dans le logement (11) qui s'étendent radialement et qui sont pourvus d'un contour d'emboîtement (17) facilitant le raccordement avec un raccord (30); et enfin, un piston à joint (22) pouvant coulisser à l'intérieur du centre du logement (11), ce piston à joint étant mis en contact avec le raccord (30). Les pièces intérieures (par exemple, les broches (25b et 25c) du système de raccordement sont caractérisées par leur petit volume qui permet de réduire le volume de liquide évacué lors de la séparation du raccord (30) du système raccordement (10), réduisant ainsi l'intensité du bruit créé par le démontage du raccord (30) du système de raccordement (10). Par ailleurs, ce système de raccordement (10) est facile à utiliser et comporte relativement peu de pièces.

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