Air intake and method for breathing air using an air intake

Details Air intake and method for breathing air using an air intake Air intake and method for breathing air using an air intake

2008-01-29

2008-01-29

Freay, Charles G (Department: 3746)

Power plants

Reaction motor

Method of operation

C060S204000, C244S05300R, C137S015200

Reexamination Certificate

active

07322179

ABSTRACT:
An air intake includes a spike and a cylindrical cowl. The spike is composed of a plurality of plates which are arranged axial symmetrically around a central axis thereof, and the cowl includes an inner wall parallel to the central axis and is formed so as to enclose a rear portion of the spike via a given space. The adjacent ones of the plates form respective aerodynamic compressive surfaces in spaces formed by the adjacent ones. The distances between the adjacent ones of the plates are variable, and the distance between the forefront of the spike along the central axis and the cowl is variable.

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Michael K. Smart et al.; “March 4 Performance of a Fixed-Geometry Hypersonic Inlet with Rectangular-to-Elliptical Shape Transition”; AIAA Aerospace Sciences Meeting and Exhibit; Jan. 6-9, 2003; pp. 1, 3, 5, 7, 9 and 11.
Ge-Cheng Zha et al.; “Numerical Simulation of High-Speed Civil Transmport Inlet Operability with Angle of Attack”; AIAA Journal; vol. 36, No. 7; Jul. 1998; pp. 1223-1229.
Joseph F. Wasserbauer et al.; “Design of a Very-Low-Bleed Mach 2.5 Mixed-Compression Inlet with 45 Percent Intenal Contraction”; Nasa Scientific and Technical Publications; 1975; pp. 1-69.

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