The Craftmans Shop > Model Engineering
Ryder-Ericsson help
fcheslop:
Hi all, Im slowly remachining a set of castings for the 2inch bore Ericsson Stirling engine and have reached the stage of making the liner that is once I find a supplier for some tubing :doh:
The question is The drawings I have show the diameter of the displacor as 1 3/4 dia and this just seems rather small to rattle around a 2inch bore and I seem to remember some mention of a mod at onetime
She is an ex Stilldrilling orphan :beer: that was pried from his fingers
thanks
smiffy:
When I built mine I made the displacer piston and cylinder out of car exhaust pipe, size is not too important but you need a reasonable clearance about 3 mm is fine . I filled the displacer piston with wire wool to help it work as a regenerator
For the power cylinder I used a cast iron liner with the piston machined out of a brake caliper piston from a car. Mike
modelman1938:
Hi
I have scratch built three Rider-Ericsson`s in different sizes working from the book S&S engines you can build, and I thought the displacer clearance was way to large. My engines range from 1-1/2 bore down to .60 bore and have gone for .030 to .040 ins clearance, I would think .050 ins would be about right for a 2 ins bore, just watch out for concentricity.
Hugh
fcheslop:
Thanks Mike and Hugh the info is greatly appreciated
Just need to find some tubing then I can make a start
cheers
Stilldrillin:
Heyup Marra!
I see you are still trying to blame me, for your misfortunes....... :palm:
Just ordered several lengths of s/s tube for Boris. You should find what you need, here...... http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2060353.m570.l1311.R2.TR2.TRC0.A0.H0.X2%22+steel+tub.TRS0&_nkw=2+inch+steel+tube&_sacat=0
Good luck, ma duck! :thumbup:
David.
Navigation
[0] Message Index
[#] Next page
Go to full version