Combine engine for single-stage spacecraft

Details Combine engine for single-stage spacecraft Combine engine for single-stage spacecraft

2006-01-03

2006-01-03

Kim, Ted (Department: 3746)

Power plants

Reaction motor

Interrelated reaction motors

C060S767000, C060S768000, C060S769000

Reexamination Certificate

active

06981364

ABSTRACT:
A novel combined engine for a single-stage spacecraft is provided that combines a air-breathing engine utilizing oxygen in the atmosphere as oxidizer and rocket engines for obtaining thrust outside the atmosphere and that does not require a portion whose shape is variable in accordance with the flight speed. Rocket engines15are provided on struts12that form air introduction channels10in the air intake section4. The rocket jets18from the rocket engines15control the flow of the airflows16introduced into the combustion chamber20in accordance with the flight speed. When the spacecraft1is stationary or in subsonic flight, the rocket jets18promote air intake into the combustion chamber20by lowering of static pressure due to expansion (ejector effect). In the subsonic flight condition, it performs the role of air compression, mixing with incoming air, fuel injection and ignition and during supersonic/ultra-supersonic flight it performs the role of a variable diffuser.

REFERENCES:
patent: 2920446 (1960-01-01), Ranard
patent: 3752172 (1973-08-01), Cohen et al.
patent: 4903480 (1990-02-01), Lee et al.
patent: 5205119 (1993-04-01), Bulman
patent: 5214914 (1993-06-01), Billig et al.
patent: 5899061 (1999-05-01), Bouchez et al.
patent: 7-4314 (1995-01-01), None
patent: 7-34969 (1995-02-01), None

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