The regulator mask dilution and demand and method of adjustment of extra oxygen mask in the regulator.

摘要

"Regulator, mask of dilution and demand and method of adjustment of extra oxygen in the regulator, a mask.A regulator of mask of demand and supply circuit comprising a dilution of oxygen and a circuit to supply dilution air.The supply of oxygen and the dilution circuit are connected to a mixing chamber (35).In the circuit of dilution, the rate of flow of inhalation air inhaled is measured through a capillary duct (43) connected to a venturi construction (41).A method of adjusting flow rate of extra oxygen uses data flow rate measured by the capillary duct.(43) to control the rate of flow of oxygen to be supplied to the mixing chamber (35).