Valve element

A - Human Necessities – 62 – C

Patent

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Details

A62C 35/02 (2006.01) A62C 13/70 (2006.01) A62C 35/68 (2006.01) F16K 17/04 (2006.01) F16K 17/16 (2006.01)

Patent

CA 2469251

Valve element, comprising a frame, at least one inlet and at least one outlet, a passage connecting the inlet and outlet, at least one burst disk or equivalent, which, when unbroken, closes the passage from inlet to outlet, and a piston element provided with a piercing element or the like for piercing the burst disk. The piston element is provided with a passage for a pressure medium, said passage extending axially through the piston element from one first side to one second side, which passage leading through the piston forms a part of the passage of the pressure medium after the burst disk has been pierced.

L'invention concerne un élément de soupape (3, 6, 10) comprenant cadre, au moins une entrée et au moins une sortie, un passage reliant l'entrée et la sortie, au moins un disque de rupture (13, 35, 63) ou similaire, qui lorsqu'il n'est pas rompu, ferme le passage entre l'entrée et la sortie, ainsi qu'un élément de piston (15, 36, 65) muni d'un élément perceur ou similaire pour percer le disque de rupture. L'élément de piston (15, 36, 65) comporte un passage (17, 39, 67) pour un milieu de pression, ledit passage s'étendant dans le sens axial à travers l'élément de piston, entre une première et une seconde face, ledit passage s'étendant à travers le piston forme une partie du passage du milieu de pression, une fois le disque de rupture (13, 35, 63) percé.

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