Gas flow regulating device

G - Physics – 05 – D

Patent

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Details

G05D 7/01 (2006.01) A61B 5/097 (2006.01)

Patent

CA 2752737

A gas flow regulating device including a housing assem-bly, an inlet tube assembly, and a biasing device. The housing assembly has a main housing, a valve seat body, and a distal plate forming an outlet orifice. The inlet tube assembly includes a proximal inlet end, a tube forming a lumen, and a flange, and is slidably disposed within the main housing, biased to an open state by the biasing device. The flange sepa-rates middle and constant pressure chambers within the housing assembly. The inlet tube assembly is transitionable to a closed state in response to pressure in the constant pressure chamber to generate a relatively constant flow rate of air exiting the device via the outlet orifice.

Cette invention se rapporte à un dispositif de régulation d'un écoulement de gaz qui comprend un ensemble de logement, un ensemble de tube d'entrée et un dispositif de sollicitation. L'ensemble de logement présente un logement principal, un corps de siège de soupape et une plaque distale qui forme un orifice de sortie. L'ensemble de tube d'entrée comprend une extrémité d'entrée proximale, un tube qui forme une lumière et une bride, et il est disposé de façon coulissante à l'intérieur du logement principal, sollicité vers un état ouvert par le dispositif de sollicitation. La bride sépare des chambres à pression moyenne et constante à l'intérieur de l'ensemble de logement. L'ensemble de tube d'entrée peut passer dans un état fermé en réponse à la pression qui règne dans la chambre de pression constante de manière à générer un débit d'air relativement constant qui sort du dispositif par l'intermédiaire de l'orifice de sortie.

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