POWERPLANT FOR UNCONVENTIONAL AIRCRAFTS (I)
Looking forward for a more conventional power souce, to be used in conjunction or separately with a more unconventional powerplant, I developped this one, still unfinished, aircraft engine for retrofuturistic airplanes.
It was initially a radial piston engine, with connecting rods, crankshaft and reduction gears, but of unconventional cylinder design. Each one of the 28 cylinders is liquid-cooled separatelly, and works at a very high pressure and temperature. Air and “A” fuel mixture regenerativelly cooled the cylinder head, as in a rocket engine, and the blue pipes inject a “B” fuel component to allow a violent ignition in the cylinder reaction chamber, with piston near his upper point.
The rear of the engine houses a powerfull mechanical compressor assembly in two stages to feed at very high pressure such array of reaction chambers.
I can estimate some 4,200 shp coming out from the propeller shaft in normal rating, and 5,000 shp in special conditions, having spent a 35% power output in compressor mechanics.
Knowing that a powerplant need much more time to develop to flight status, or to be reliably mature, than an aircraft design, I created firstly the engine family and, later, the aircrafts to be propelled by them.
In another, more unconventional variant of this basic configuration, there is no connecting rods nor crankshaft. Simply the pistons act as a very potent compression pumps and as a hot exhaust gas generators. In this working mode, all exhaust products were ducted to a rear gas turbine in order to move the compressors (35% power) and the geared propeller (60%), leaving a 5% to escape through a nozzle.
More to come.
Etiquetas: 3D, Aircraft, Aviación, Aviation, Engine, Flugzeuge, Future-Past, Futuro-Pasado, High-pressure, Hochdrück, Motor, Piston, Propeller, Propulsión, Reaction chamber, Reaktion, Retrofuture, Retrofuturo, Triebwerk
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