Variable chiller exhaust with crown ventilation
AssigneeThe Boeing Company
InventorsEric A. Hill, Brian C. Christenson, John C. Pizzichemi
Life of this patent
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Abstract
A variable chiller exhaust system incorporate a plurality of chillers, each chiller having an inlet receiving air from a crown in an aircraft fuselage and an outlet connected to a manifold. A plurality of check valves are connected to the manifold and configured to maintain a differential back pressure on the plurality of chillers of 2″ water pressure or less. The check valves vent into the crown. An exhaust conduit is connected to direct air from the manifold to a variable speed fan. An outflow valve exhausts air from the variable speed fan to an exterior of the fuselage.
Claims20
A variable chiller exhaust system comprising:
- a plurality of chillers associated with a plurality of galleys and located in a crown in a fuselage of an aircraft at locations of the galleys, each chiller having an inlet receiving air from the crown and an outlet connected to a manifold providing a process air output stream;
- a plurality of check valves connected to the manifold and configured to maintain a predetermined differential back pressure on the plurality of chillers, said check valves venting into the crown;
- an exhaust conduit connected to direct at least a portion of the process air output stream from the manifold to a variable speed fan;
- and,
- an outflow valve exhausting air from the variable speed fan to an exterior of the fuselage.
Dependencies are inferred from the claim text.