Maybe just the Engine? Modularity, power...
The Motor?
Ooooh -- The Apparatus.
Or the Ancient Greek root word of machine--Mekhos. I like that because it sounds like a cool Greek dudes name.
The Instrument.
The Piston. The Contraption.
The Vessel.
@Dan Morrison when you say what name you want it reminds me of this line from sounds of silence by Simon and garfunkel--
"
In restless dreams I walked alone
Narrow streets of cobblestone
'Neath the halo of a street lamp
I turned my collar to the cold and damp
When my eyes were stabbed by the flash of a neon light
That split the night
And touched the sound of silence
And in the naked light I saw
Ten thousand people, maybe more"
Always felt post apocalyptic to me