and then the gas turbine as smooth but much more inefficient. The free piston engine, a design with opposed pistons working against compressed air springs and combining both compression and firing ...

The APU also provides compressed air to power a third turbine, the main engine’s pneumatic starter motor. That’s the type ...

Another, larger stream of air merely passes through the bypass stream without being compressed ... engine. Secondary air is transmitted to the active clearance control lines installed on turbine ...

Just like any other internal combustion engine, air is compressed, fuel is burned ... and the expanding exhaust drives a turbine that in turn drives the compressor since both are attached to ...