Thermostatically controlled galley air extraction
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United States of America Patent
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Apr 16, 2024
Grant Date -
Sep 30, 2021
app pub date -
Mar 24, 2021
filing date -
Mar 27, 2020
priority date (Note) -
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Abstract
A system for controlling airflow from a galley compartment to a plenum chamber is disclosed. The system includes an actuating assembly. The actuating assembly includes a cylinder, a heat-expanding material disposed in the cylinder, and a piston disposed in the cylinder, wherein the heat-expanding material is configured to actuate the piston when the heat-expanding material is heated. The system includes a valve assembly. The valve assembly may include a louver assembly coupled to the actuating assembly. The louver assembly includes a louver frame, one or more louver blades and bracket and a connecting rod that couples the actuating assembly to the valve assembly. The valve assembly may also include a poppet valve. The poppet valve includes a poppet body element, a poppet stem coupled to the actuating assembly that is inserted into a channel within the poppet body element, and a poppet head coupled to the poppet stem.
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