|Ringbom Stirling Cycle Pumping Engine Plans
Ringbom stirling cycle engine is unique in that there is no mechanical
connection to the displacer. The displacer operates itself from the
pulsating pressure variations within the engine. The engine has only
four moving parts.
The engine makes a distinctive thumping sound like no other engine and
runs at a fairly constant speed of around 700 RPM when powered by my
Mini Propane burner which is highly recommended (see the "Other
Interesting Projects" menu).
This is a water cooled model and the plans also include an engine
driven oscillating water pump that has only three moving parts and no
check valves! It is your choice to build the pump or to supply cooling
water to the engine by other means.
Ringbom engines and the plans are very rare but now you can build a
Ringbom engine of your own!
The plans set consists of 11 sheets of drawings and 2 sheets of
construction and assembly notes.
Flywheel Diameter: 3-1/2", Cylinder
Bore: 1/2", Piston Stroke: 5/8", Overall Height: 6-1/4" Experience
(1) 5/8" dia. x 1.9" long graphite for piston, (2) .156" x .312"
flanged bearings. Materials set sold separately.
for ALL that you contribute to the model engine world and the machining
hobby in general with your great plans and designs." - John
Guenther (Sterling, Virginia)