Noel Barton's Experimental Heat Engine

[BartonSunoba]

The Newcomen engine involves only steam and water, with no expansion. The working gas in the evaporation engine is hot air, expanded to sub-atmospheric pressure and then evaporatively cooled. Definitely a different thermodynamic cycle to Newcomen.

[fizzguts]

Good grief

You've invented the Newcomen engine and the spray condensor 250 years to late.

So?

[TommeyLeeReed]

This is how my ratchet engine works, great video.