| Ringbom
Stirling Cycle
Pumping Engine Plans |
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The
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.
Specifications:
Flywheel Diameter: 3-1/2",
Cylinder
Bore: 1/2", Piston Stroke:
5/8", Overall Height:
6-1/4" Experience
Level: 5
Materials
Set:
(1) 5/8" dia. x 1.9"
long graphite for
piston, (2) .156" x
.312"
flanged bearings.
Materials
set sold separately.
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"Thanks
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)
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