Auxiliary power unit inlet apparatus and methods
AssigneeThe Boeing Company
InventorsPaul R. Tretow, David S. Chambers, Robert H. Willie
Life of this patent
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Abstract
Auxiliary power unit inlet apparatus and methods are disclosed. An example apparatus includes an air inlet for an aircraft including a first air flow path and a second air flow path. The first air flow path is immediately adjacent the second air flow path. The first air flow path is at least partially separated from the second air flow path by a first panel. The example apparatus includes a door hingably coupled adjacent the air inlet. The door includes a second panel extending from an interior surface of the door to substantially prevent air from flowing across the interior surface between the first air flow path and the second air flow path.
Claims17
An apparatus, comprising:
- an air inlet for an aircraft comprising a first air flow path and a second air flow path, the first air flow path being immediately adjacent the second air flow path, the first air flow path at least partially separated from the second air flow path by a first panel;
- and
- a door hingably coupled adjacent the air inlet, the door comprising a second panel extending from an interior surface of the door to substantially prevent air from flowing across the interior surface between the first air flow path and the second air flow path.
A method, comprising:
- flowing air into a dual flow auxiliary power unit inlet;
- and
- separating the air flow into a first air flow path and a second air flow path using a panel extending from an inlet door.
An apparatus, comprising:
- an air inlet for an aircraft comprising a first air flow path and a second air flow path, the first air flow path at least partially separated from the second air flow path by a first panel;
- a door hingably coupled adjacent the air inlet;
- and
- means for substantially preventing a total pressure recovery reduction for the second air flow path when the first air flow path is operating at a higher mass flow rate than the second air flow path.
Dependencies are inferred from the claim text.