found: outboard stirling boat motor pictures

[vile_fly]

Found a nice power producing outboard beta stirling engine that was seen in this video. Found some dissassembly photos, too.
http://www.youtube.com/watch?v=qo_YOLZY4rI

[vile_fly]

more pictures.

[vile_fly]

above shows the diaphragm water pump.

[vile_fly]

and more.....

[vile_fly]

Not bad at all.

[vile_fly]

I am still looking for measurements on this design.

[Aviator168]

The efficiency of that engine is disappointing.

[vile_fly]

I had previously posted the wrong data for this engine.....deleted it. Still searching for the right data.

V twin Alpha type Stirling engine powered outboard running at Bruny Island, Tasmania, Australia 2006. 160cc total displacement, unpressurized air working fluid, V twin for good balance.V twin Alpha type Stirling engine powered outboard running at Bruny Island, Tasmania, Australia 2006.
160cc total displacement, unpressurised air working fluid, V twin for good balance. Two, twin cylinder, Alpha type stirling engines mounted at 90 degrees to each other and sharing the same crankshaft. 180W @ 1800rpm,
fuel consumption: 300g LPG/h, speed: 2 knots on a 12-foot dinghy, total outboard mass 16kg. Start up fron cold, 1.5 minutes, Total running time to date 200 hours. ( Aug 2009)

[Aviator168]

Here, directly from the horse's mouth

"The efficiency is 4% overall, gas in to power out. The heaters are folded and so can not cope with pressurization. Having aquired some design tools, I hope to modify and improve it."

[vile_fly]

I like it for the design layout. That alone is enough for me. I don't intend to make an exact copy....I have enough projects on my hands. It's still a pretty engine. By the way, what's the bore and stroke?