A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 16/12 (2006.01) A62B 7/02 (2006.01)
Patent
CA 2542989
A demand and dilution mask regulator comprising an oxygen feed circuit and a dilution circuit for supplying air. The oxygen feed circuit and the dilution circuit are connected to a mixing chamber (35). In the dilution circuit, the inhaled breathe-in air flow rate is measured through a capillary duct (43) connected to a Venturi construction (41). A method of regulating the flow rate of additional oxygen uses flow rate data measured through the capillary duct (43) for controlling the oxygen flow rate to be supplied to the mixing chamber (35).
L'invention concerne un régulateur de masque de dilution sur commande comprenant un circuit d'alimentation d'oxygène et un circuit de dilution de l'air entrant. Le circuit d'alimentation d'oxygène et le circuit de dilution sont reliés à une chambre de mélange (35). Dans le circuit de dilution, le débit d'air inspiré est mesuré à travers un conduit capillaire (43) relié à une construction venturi (41). L'invention concerne un procédé pour réguler le débit d'oxygène supplémentaire utilisant les données de débit mesurées à travers le conduit capillaire (43), destiné à commander le débit d'oxygène envoyé dans la chambre de mélange (35).
Aubonnet Severine
Lamourette Didier
Maire Patrick
Sagot Benoit Estaca
Intertechnique
Robic
LandOfFree
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