Two-stage gas regulating assembly

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

Patent

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F16K 31/12 (2006.01)

Patent

CA 2615796

A gas regulating assembly controlling the pressure of gas from a gas reservoir to a pneumatically-operated device includes a primary housing surrounding a pair of gas regulators. The gas regulators are aligned in series within the primary housing between an inlet to receive high pressure gas and an outlet for releasing a controlled pressure gas. Each gas regulator includes a sealable valve that defines an input and an output, with each valve including a piston having a cylinder and a rod. A spring is adjacent said piston to force said piston cylinder away from said corresponding inlet, and a shim proximate said spring to adjust the force applied by said spring on said piston cylinder. Each valve allows gas to traverse the corresponding gas regulator until a predetermined pressure is achieved in the respective outlet of the respective gas regulator, at which point the predetermined pressure will close the corresponding valve.

L'invention concerne un ensemble régulateur de gaz qui régule la pression d'un gaz s'écoulant d'un réservoir à gaz à un dispositif pneumatique. L'ensemble régulateur de gaz comprend un boîtier principal entourant une paire de régulateurs de gaz. Les régulateurs de gaz sont alignés en série à l'intérieur du boîtier principal, entre un orifice d'admission qui reçoit le gaz à haute pression et un orifice de sortie qui libère un gaz à pression régulée. Chaque régulateur de gaz comprend une soupape d'étanchéité qui délimite un orifice d'admission et un orifice de sortie, chaque soupape comprenant un piston muni d'un cylindre et d'une tige. Un ressort jouxte ledit piston et force le cylindre du piston à s'éloigner de l'orifice d'admission correspondant, et une cale située à proximité du ressort règle la force exercée par ce dernier sur le cylindre du piston. Chaque soupape permet au gaz de traverser le régulateur de gaz correspondant jusqu'à l'obtention d'une pression préétablie dans l'orifice de sortie respectif du régulateur de gaz respectif, moment auquel la pression préétablie ferme la soupape correspondante.

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