The Haynes Hot-Air Engine
"This Haynes engine is only one of several unusual engines built in the last few years by my father, David J Gingery. This is the little engine that inspired him to develop and build his acclaimed Two Cylinder Stirling Cycle Engine, the plans for which were published in 1990.
Here you get detailed, step-by-step instructions showing you how to build your own Haynes engine. If you've never built an engine before, this is the place to start.
The engine is simple, and only a small lathe and common
handtools are needed to create a machine you'll be proud of. This is a great
first project and an exciting adventure for the novice machinist."
Here you get detailed instructions on building a Stirling engine, this particular design having been originally perfected by T. E. Haynes whose manual was published in Great Britain in 1967. In 1978 the now defunct Caldwell industries reprinted it. So here is a third publication that will show you how to build a simple hot air engine with a 5 1/2" diameter flywheel and a 1 5/8" dia x 1 3/8" stroke transfer cylinder.
Castings are used, but you could get by with weldments. (But I think you're a gluehead if you don't build a simple furnace and pour a couple of castings out in the alley. It's low-cost and easy.) Since this was originally a project for school shop classes, the skills and tools needed are minimal. A lathe with at least a 6" swing is required as is a drill press. You'll need to braze and silver solder, so you'll need something more than a propane torch. A mapp gas torch should do. In other words, this is certainly an engine you can build.
Rumor
has it that Dave is using the original prototype engine to power a wire-drawing
machine. I hear he's making precision strings for his custom built accordion.
More about that later.
In the meantime get a copy of this and get started. Great summer project. The usual top-rate Gingery quality. 8 1/2 x 11 paperback 46 pages
No. 1460 ... no longer available
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