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New half rhombic Stirling engine - who knows details of the crank drive?

Posted: Fri May 29, 2020 7:08 am
by tom-rock
Hi,

I just finished my new Stirling engine with half rhombic drive.
The half rhombic Stirling is much more easy than my original rhombic engine (300W output) which will maybe lend to a useful generator/micro CHP in a small mini series.
I know very little about the half rhombic crank drive and just found a sketch in J. R. Senfts book "Ringbom Stirling Engines" and know that it was invented by Prof. Carlquist.
Does anyone know more about the half rhombic drive or knows where to find information?

To get an idea of the engine here is a YT link: https://youtu.be/s3a7w6yy0J8
HRD Stirling2.JPG
HRD Stirling2.JPG (104.08 KiB) Viewed 1988 times
I would be very happy for any help, comments and suggestions.

Best wishes and greetings

Ralf

Re: New half rhombic Stirling engine - who knows details of the crank drive?

Posted: Fri May 29, 2020 10:45 pm
by Tom Booth
This is the first I've heard of it. Very interesting. Thanks!