Prototype Steam Spiral
Prototype Steam Spiral

Here is an early version of the steam spiral. Since making this in 1993, I have rebuilt or replaced most everything on it.

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Motor front 2 2 600
Motor front 2 2 600

Here it is in its latest incarnation

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Current energy source
Current energy source

In its current configuration, the steam spiral uses alcohol as its fuel source. The alcohol is burned in a packed whick fongue burner which can be replenished from the tank shown via the hand pump on the right.

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Control Side
Control Side

Miniature pressure gauge watergauge glass and water check valve

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alcohol flame
alcohol flame

When properly adjusted, the alcohol burns very hot.

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20150827_190010
20150827_190010

I have burned many different iyems in this piece over the years , Butane, peanuts, wood pellets, bits of hardwood scrap and denatured alcohol

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Novelty stove
Novelty stove

I did not nake the potbelly stove fire box. It was made in Taiwan as as a novelty item

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Steam Spiral

Of all the engines I made, this one has been with me the longest. It utilizes a relatively simple type of engine whereas the cylinder oscillates with the rotation of the crank. The oscillation swings the ports in the cylinder to communicate with the input or the exhaust ports at the correct time to make the engine go. The engine exhausts out the whistles on each side of the spiral.