| 摘要 |
A oxygen system includes a casing ( 1 ) that houses a valve seat ( 4 ) with an air inlet duct ( 6 ) arranged in axial direction, a shutting part ( 7 ) associated with the air inlet duct at the valve outlet, and a driving motor ( 8 ). A pressure sensor ( 15 ) for measuring the pressure in the respective phase of breathing is located in a measuring chamber ( 2 ) connecting the air inlet duct and the air outlet duct ( 3 ) that is formed in the casing and can be connected to a respirator mask. The pressure conditions prevailing during inhalation and exhalation control the drive motor that is connected by a controller to the shutting part of the valve unit, and regulate the air supply to the respirator mask. In addition to the air control that exactly matches respiration, the device is small and compact, requires few mechanical components, and is resistant to impact stress.
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