Method for the control of the breathing gas supply
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United States of America Patent
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Aug 29, 2023
Grant Date -
Dec 31, 2020
app pub date -
Jul 9, 2020
filing date -
Apr 9, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
In a preferred embodiment, methods and systems for the control of the breathing gas supply from a pressure-leading supply conduit to one or more breathing masks of an oxygen emergency supply device in a passenger aircraft include an on/off valve arranged between the supply conduit and the one or more breathing masks. The valve can be blocked or released to control air supply based upon monitoring mass flow to the breathing masks. The valve, for example, is actuated to an open position until the error between the actual mass flow and a desired mass flow exceeds a maximal error value, whereupon the valve is actuated to a closed position until the error between the actual mass flow and the desired mass flow exceeds a minimal error value whereupon the valve is actuated to the open position and the mass flow monitoring cycle is repeated.
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