racered57, yes, the locomotive engines, and any steam engine that displays the traditional 'puffing' out the stack is using the exhaust steam to induce scavenging through the fire box. Even when you se one stopped and an occasional burst of exhaust smoke, that's the steam powered air compressor cycling.
And they may very well have injected steam into the fire box. They never missed a trick to improve the efficiency of those old engines!
Makes sense that adding a little water to the combustion would give it a boost. Just like any hotrod will run noticeably better on a cold damp day.
There used to be an add-on contraption for gas engines, probably back in the 30's-60's that was a glass jar under the hood that metered in a small amount of water to the intake. Supposed to boost mileage and power. Must have been something to it, it was around for a long time! Never understood how it didn't freeze, maybe it used alcohol antifreeze.
And I've heard the early jet bombers used water injection on take off, when the black smoke was bellowing and the sound was deafening!
I don't know how it works, but would think it would have something to do with the water going crazy when the fire lights, multiplying the expansion!
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Today's Featured Article - Field Modifications (Sins of the Farmer) - by Staff. Picture a new Chevrolet driving down the street without it's grill, right fender and trunk lid. Imagine a crude hole made in the hood to accommodate a new taller air cleaner, the fender wells cut away to make way for larger tires, and half of a sliding glass door used to replace the windshield. Top that off with an old set of '36 Ford headlight shells bolted to the hood. Pretty unlikely for a car... but for a tractor, this is pretty normal. It seems that more often than not they a
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