System for regulating the dispensing of commercial aircraft passenger oxygen supply
AssigneeBE Intellectual Property, Inc.
InventorJames C. Cannon
Life of this patent
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Abstract
The aircraft emergency oxygen supply system includes one or more sources of supplemental breathable oxygen, one or more inlet valves for one or more breathing devices, connected to the inlet valves, and one or more cabin air pressure transducers. A pressure controller controls the inlet valves in response to the one or more cabin air pressure transducers. One or more second pressure transducers may connected to conduits downstream of inlet valves to be monitored, and the pressure controller may also control operation of the inlet valves in response to the one or more second pressure transducers.
Claims8
An emergency oxygen supply system for an aircraft with a pressurizable passenger cabin comprising:
- a source of supplemental breathable oxygen;
- a conduit connected to said source of supplemental breathable oxygen;
- an upstream first on-off inlet valve connected to said conduit downstream from said source of supplemental breathable oxygen;
- a downstream second on-off inlet valve connected to said conduit downstream serially from said first on-off inlet valve;
- at least one breathing device connected to said conduit downstream from said downstream second on-off inlet valve;
- at least one cabin air pressure transducer for generating a cabin air pressure input signal representing the cabin pressure and a corresponding altitude;
- a second pressure transducer connected to said conduit between said upstream first on-off inlet valve and said downstream second on-off inlet valve, said second pressure transducer being configured to sense a gas pressure in said conduit at a location downstream of the first on-off inlet valve;
- and
- a pressure controller connected to said at least one cabin air pressure transducer for receiving said cabin air pressure input signal, said pressure controller being connected to and controlling the operation of said first and second on-off inlet valves in response to said cabin air pressure input signal received from said at least one cabin air pressure transducer, and said pressure controller being operative to control the operation of said first and second on-off inlet valves in response to said second pressure transducer.
An emergency oxygen supply system for an aircraft with a pressurizable passenger cabin comprising:
- a source of supplemental breathable oxygen;
- an on-off inlet valve connected to said source of supplemental breathable oxygen;
- at least one cabin air pressure transducer for generating a cabin air pressure input signal representing the cabin pressure and a corresponding altitude;
- at least one breathing device;
- a manifold connected between said on-off inlet valve and said at least one breathing device;
- and
- a pressure controller connected to said at least one cabin air pressure transducer for receiving said cabin air pressure input signal, said pressure controller being connected to and controlling the operation of said on-off inlet valve in response to said cabin air pressure input signal received from said at least one cabin air pressure transducer.
Dependencies are inferred from the claim text.