Aeronautics and astronautics – Aircraft structure – Fuel supply
Patent
1978-10-02
1981-06-30
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft structure
Fuel supply
114261, 169 62, 2101951, 1372346, 137239, 137560, 222318, 222148, 222189, 141 91, B64D 3714, B64D 3718, B64F 128
Patent
active
042758602
ABSTRACT:
A shipboard system that provides safe storage and complete quality control of aviation fuels from acceptance of the fuel at shipside to delivery of clean, dry fuel at a shipborne aircraft includes a storage tank disposed in a closed chamber defined by a cofferdam. The tank is mounted in the chamber to provide an airspace around all sides which is vented to the atmosphere and maintains any concentration of fuel vapor in the chamber below a predetermined lean limit. Fire protection apparatus of the system is actuated by a rate of temperature rise detector and releases an agent that floods the chamber to terminate the combustion cycle in the event of a fire. Conduit runs include filters to remove contaminants when fuel is pumped through and also include a closed-circuit filtered conduit through which the fuel is frequently recirculated to control deterioration of the system and degradation of the fuel caused by long term storage and intermittent use of the system. The conduits lead downwardly to the tank from intake and discharge locations to provide a gravity drain and further include a purging system that clears selected conduits with a metered portion of inert gas to remove residual fuel and vapors after each conduit is used.
REFERENCES:
patent: 1779786 (1930-10-01), Unzue
patent: 2160831 (1939-06-01), Colby et al.
patent: 2282997 (1942-05-01), Edmundson
patent: 2404418 (1946-07-01), Walker
patent: 2944670 (1960-07-01), Hutcheson
patent: 3331404 (1967-07-01), Gehring et al.
Barefoot Galen L.
Sakovich Michael M.
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