Air inlet and method for a highspeed mobile platform

Details Air inlet and method for a highspeed mobile platform Air inlet and method for a highspeed mobile platform

2011-01-04

2011-01-04

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft structure

Passenger or crew accommodation

C137S015100, C244S05300R

Reexamination Certificate

active

07861968

ABSTRACT:
An inlet apparatus and method for use with a cabin air compressor on a high speed, airborne mobile platform, such as a commercial or military aircraft. The apparatus includes a Pitot inlet of a desired shape that is supported outside an exterior surface of a fuselage of the aircraft by a diverter structure. The diverter structure diverts a low energy portion of a boundary layer so that the low energy portion does not enter the Pitot inlet. The Pitot inlet receives the higher energy portion of the boundary layer and channels a ram airflow to an inlet of a cabin air compressor. The apparatus provides a recovery factor (RF) of at least about 0.8 at a cabin air compressor (CAC) inlet face, which keeps the electric power required to drive the CAC within available power limits, while minimizing the drag of the inlet apparatus.

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Rolls, L. Stewart. “A Flight Comparison of a Submerged Inlet and a Scoop Inlet at Transonic Speeds.” NACA Research Memorandum A53A06. Mar. 19, 1953.

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