So ! , it seems an overlooked fuel engine .
not ' IC ' / CI / EV OR CA ( COMPRESSED AIR / STEAM ) .
NOW ! , Boffins get your idea's working.
Two stroke " wasteful " , rotary ! .
Four stroke ! Does not need compression.
Direct injection liquid over heating element! . ( High pressure low volume cylinder )
Exhaust into large volume low pressure, secondary cylinder ? .
four pot ! , ' Two high P ' & ' two low P ' .
CONFIGURATION ? .
who will make their name ? .
spacesailor