Closed chamber Stirling engine generator.

[tinu]

@tinu,

I wish that I could take credit for this idea but I can not!  The rotary Stirling engine is invented by Robert L. Dieter and
has a US patent number 7,185,492 B2. It was filed August 3, 2005.

Groundloop.

Damn, damn, damn!
Although very busy at work, I was planning to study the idea in deep details. Anyway, during the last evening it was clear to me that it?s not actually a Stirling (no isochrones at all) but still worth of investigating. Biggest challenge would be the gas-tighten requirement for sliding pistons, which is in clear conflict with low drag requirement.
Well, damn again! Nothing new under the Sun and if, by slightest chance, anything new, it?s been patented already.
So, I?ve re-made my mind: It definitely won?t work! 
But we still may buy it in the next year(s). 

Cheers,
Tinu

[Groundloop]

@tinu,

I had the same thought. The center steel in the piston must be very good. If the center steel is split in two with a spring in the middle then the gas-tight will be good.

Groundloop.

[dutchy1966]

Hi everyone,

Afew days ago I came across a rotary stirling too, although it functions differently from the one groundloop found.
It even has construction details with it.
Maybe we can do something with that idea too....

http://www.emachineshop.com/engine

What you think?

regards

Robert

[Gearhead]

Hi everyone,

Afew days ago I came across a rotary stirling too, although it functions differently from the one groundloop found.
It even has construction details with it.
Maybe we can do something with that idea too....

http://www.emachineshop.com/engine

What you think?

regards

Robert

From the website this quote;

"Although this design has less points of friction than a conventional Stirling engine, it is slightly less efficient as it lacks dwell time and a regenerator, and chamber air turbulence is lower. It is not the first pseudo-rotary heat engine but it is the simplest. This site shows the simple parts needed to build the engine. The model shown has a 6 inch chamber diameter."

Rotary or reciprocating with a crankshaft are more complex and prone to breakdowns as well as requiring more machining and parts.  Free piston engines can be sealed easier and promise much longer life and less parts.

[Groundloop]

@dutchy1966,

Thank you for providing the link to the rotary Stirling engine.

@Gearhead,

What we need is something robust that will do the job and last a long time.

Groundloop.