Research/Patents/US 5074118
US 5074118

AIR TURBO-RAMJET ENGINE

Assignee

UNITED TECHNOLOGIES CORPORATION, A CORP. OF DE

Filed

Jan 9, 1989

Granted

Dec 24, 1991

Location

MANCHESTER CT US

Abstract

A jet engine designed to power a supersonic airplane throughout a range of speeds from subsonic to high supersonic includes a housing which bounds an internal passage having in succession a fixed-area inlet section, a diverging passage section, a mixing section, a combustion section, and an outlet section. A fan rotor rotates in the inlet section and includes a plurality of rotor blade members. The housing includes a main body and at least one flap which is movable between one end position in which it externally bounds a portion of the diverging passage section and another end position in which it externally delimits a diverging discharge passage connecting the diverging passage section with the exterior of the housing. The cross-sectional area of the outlet section is adjustable. The rotor is driven in rotation by a fuel/oxygen powered turbine the outlet of which communicates with the mixing section, but the driving action of the turbine is discontinued at actual supersonic velocities exceeding a predetermined supersonic velocity. The pitch of at least one element of each of the rotor blade members is adjustable.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jun 20, 1989

Rescinded

Oct 17, 1989

Duration

3 months

Inventor

  • 1CHARLES E. KEPLER

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records